US3208041A

US3208041A - Line-casting machine

Info

Publication number: US3208041A
Application number: US312698A
Authority: US
Inventors: Carl F Swenson
Original assignee: POWERS AND EATON IND Inc
Current assignee: POWERS AND EATON IND Inc
Priority date: 1963-09-30
Filing date: 1963-09-30
Publication date: 1965-09-21
Anticipated expiration: 1982-09-21
Also published as: DE1285483B; NL6411306A

Description

Sept. 21, 1965 c. F. swENsoN LINE-CASTING MACHINE 5 Sheets-Sheet l Filed Sept. 50, 1963 Sept. 21, 1965 C. F. SWENSON LINE-CASTING MACHINE Filed sept. so, `196s 5 sheets-sheet 2 "nel Tls

T40 0,16 DELA y A WHEY Sept- 21, 1965 c. F. SWENSON 3,208,041

LINE-CASTING MACHINE Filed Sept. 50, 1963 3 Sheets-Sheet 3 Ag o Le vA re' 771/11 SPAnE INV EN TOR. V. CAA@ f.' 5MG/vso United States Patent 3,203,041 LINE-CASTING MACHINE Carl F. Swenson, Hillsdale, NJ., assigner, by mesne assignments, to Powers & Eaton Industries, Inc., Hawthorne, NJ., a corporation of New Jersey Filed Sept. 30, 1963, Ser. No. 312,698 18 Claims. (Cl. 340-147) The present invention relates to an improved line-casting machine and more particularly to an improved control mechanism for automatic line-casting machines.

The present invention is an improvement over my copending United States Patent application Serial No. 95,- 577, tiled in the United States Patent Oiiice on March 14, 1961.

Automatic line-casting machines, as described in said co-pending application, are controlled by perforated tape which is moved through a tape reader. The tape reader senses the perforations or code openings on the tape as it passes therethrough and energizes certain circuits which cause the machine to perform predetermined functions.

As well-known, a line-casting machine operates by releasing a plurality of matrices from a magazine and depositing them on an elevator. When a complete line of matrices has been assembled on the elevator, the elevator is raised to a position where the assembled matrices are cast into a line of type.

In automatic line-casting machines which are controlled by a perforated tape, the code openings in the tape cause the mats to be dropped from the magazine and assembled on the elevator and also cause the machine to go through its various functions, such as raising the elevator, lowering the elevator, etc.

In the operation of such automatically-controlled linecasting machines, it sometimes becomes necessary to repeat a line, as, for example, when a malfunction of the line-casting machine prevents a particular line from being cast.

In such situations, the operator of the machine must tirst stop the machine and remove the defective line. He then removes the tape from the tape reader, searches for the code opening in the tape which energized the last elevate circuit, and replaces the tape in the tape reader at the proper position. He then starts the machine again so that the defective line can be recast. As will be obvious, such an operation is both time consuming and expensive.

The present invention eliminates these disadvantages and provides an improved control mechanism for a linecasting machine whereby the line will be automatically reassembled on the elevator.

Another object of the present invention is the provision of an improved control mechanism for a line-casting machine in which the perforated tape is automatically moved back to the proper position.

lAnother object of the present invention is the provision of an automatic control mechanism for line-casting machines which permits the tape readerto be removed from the close proximity of the line-casting machine.

Other and further objects of the invention will be obvious upon an understanding of the illustrative embodiment about to be described, or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.

A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawings, forming a part of the specification, wherein:

FIG. 1 is a logic diagram showing the improved control mechanism for permitting the tape to back-up automatically to the beginning of the line to be recast;

3,208,041 Patented Sept. 21, 1965 ice FIG. 2 is a schematic plan View of the perforated tape and tape reader adapted to be used in the present invention;

FIG. 3 is a schematic simplified diagram showing an automatic control circuit for line-casting machines; and

FIG. 4 is a schematic diagram showing the solenoids for releasing individual matrices.

As more fully described in said application Serial No. 95,577, a line-casting machine comprises a keyboard having a plurality of individual keys. Each key has a letter or other symbol on its face and when depressed is adapted to release a matrix from a magazine.

In automatic line-casting machines, each key is depressed by a solenoid which may be located beneath the keys. When a particular solenoid is energized by a circuit which will be described hereinafter, its armature is moved to depress a key which in turn actuates the matrixreleasing mechanism to release a particular matrix from a storage magazine.

The automatic control circuit for solenoids 13a to 13h which actuates a particular key is closed by the perforated code tape 6. The tape has six code openings designated 0, l, 2, 3, 4, 5 which will open a particular path in the circuit depending upon the particular combination of code holes which is read by a tape reader, which will be described in greater detail hereinafter. The tape 6 has a central smaller opening M to permit a signal to be pulsed through the circuit to energize a particular solenoid 13a to 13h and release a particular matrix.

As shown in FIG. 2, the openings have been designated 0, 1, and 2 on one side of the central pulsing hold M and 3, 4, and 5 on the other side of the central pulsing opening M. By a combination of these code holes it will be noted that a number of paths through the circuit can be opened, each of the paths leading to one of the solenoids 13a to 13h which is controlled thereby.

In addition to releasing matrices from the magazine, the tape 6 also controls all of the other functions of the machine, such as elevate, upper rail, lower rail, etc. In all, through a shift and unshift circuit, hereinafter described, the perforated tape 6 is capable of 128 combinations to operate the line-casting machine fully automatically.

The coded tape 6 is read by a photo-electric mechanism which comprises a light source and a photo-diode housing P comprising photo-diodes P0, P1, P2, P3, P4 and P5 overlying the paths of openings, 0, 1, 2, 3, 4 and 5, respectively, and a centrally located photo-diode Pm overlying the path of the central pulsing opening M.

The photo-diodes P0 to P5 are adapted to read the tape 6 to determine Whether there is a hole present therebeneath or whether there is a no-hole (absence of a hole) therebeneath. In either case, a circuit is closed to the particular solenoid 13a to 13h.

Referring to FIG. 3 shows eight solenoids 13a to 13h only, for clarity, the signals from the photo-diodes P0 to P5 are amplified by an amplifier T1 and by means of the flip-flop T2 and T3 a hole line is closed or the nohole line is closed. In each case, the particular hole line or no-hole line closed corresponds to the particular combination of code holes 0 to 5 appearing on the tape 6 when it is read by the photo-diodes P0 to P5 in the photodiode housing P. For this reason, the hole lines in FIG. 1 have been designated 0, 1, 2, 3, 4 and 5 corresponding to the designations of the code holes 0 to 5 in tape 6, to indicate that if a particular code hole is read the corresponding hole line is closed and the no-hole lines in FIG. l have been designated and 5 to indicate that if a particular code hole in the tape does not appear, the corresponding no-hole line will be energized.

Each hole line to 2 and each no-hole line to E is connected to a plurality of gates A6 to A7 connected through amplifying circuits 16 to one side of solenoids 13a to 13h and each hole line 3 to 5 and each no-hole line to is connected to a plurality of gates B6 to B7 connected through amplifying circuits 17 to the other side of the solenoids 13a to 13h. Each of these gates are and gates so that all the conditions of the gate must be satisfied before the gate will open.

The hole line 0 is connected to gates A1, A3, A5 and A7 and corresponding hole line 3 on the other side is connected to gates B1, B3, B5 and B7. The no-hole lines and are connected to gates A6, A2, A4 and A6 and to gates B6, B2, B4 and B6, respectively. The no-hole lines and are connected, respectively, to gates A6, A1, A4 and A5 and B6, B1, B4 and B5 whereas the hole lines l and 4 are connected to gates A2, A3, A6 and A7 and to B2, B3, B6 and B7. Finally, no-hole lines '2' and 5 are connected to gates A6, A1, A2 and A3 and B6, B1, B2 and B3 while

hole7 lines

2 and 5 are connected to gates A4, A5, A6 and A7 and B4, B5, B6 and B7.

With this arrangement, a particular gate on each side of the solenoids 13a to 13h will be opened each time the tape is read by the photo-diodes P6 to P5. The example, gate A6 will only operate if codes and (i.e.,

holes

0, 1, 2 do not appear on the tape) are read by the photodiode and B6 will be opened when codes and 5 are read by the photo-diodes. On the other hand, gates A7 and B7 will only be operated if the codes 0, l, 2, 3, 4 and 5 (i.e., all the holes) appears on the tape.

Since the solenoids 13 are between the two sets of gates A6-A7 and B6-B7, a path through a single solenoid only is opened depending on which gates have been opened responsive to the code combination on the tape.

This is shown in the simplified version of the solenoid bank shown in FIG. 3. Each gate A6-A7 is shown as being connected to the solenoids 13a to 13h, respectively. The gate B6 is shown connected to all the solenoids 13a to 13h. For clarity, gates B1 to B7 have been shown as being unconnected to any solenoids.

With this arrangement if the photo-diodes read the code 0, l, 2, 5, the gates A7 and B6 are opened and the path through solenoid 13a is opened. Similarly, if the code is l, 2, 5, then gates A6 and B6 would be opened to close the circuit to solenoid 13g. The paths through the other solenoids 13a to 13f are opened in a similar manner.

, It will thus be seen that depending upon the code combination in the tape which is read by the tape reader, a predetermined path will be opened through a particular solenoid and that when the central hole M on the tape is then read by the photo-diode Pm, the signal will be pulsed through the predetermined path in the circuit to energize that solenoid only which will release a matrix or perform another function of the machine.

Inherent within the basic design of a type-casting machine, it takes longer for two successive matrices to be selected from the same channel or a magazine than it does for two successive matrices from different channels of the same magazine. When operating at higher speeds it is necessary to slow the reader down when dual characters are sensedso that the second character of the dual would not be left in the magazine.

In order to avoid this, the present invention introduces a delay in the machine which will stop the tape reader for a predetermined amount of time so that after the first character is released, the machine can catch up before the second character will be released.

As shown in FIG. 3, the gate D1-D2 has a positive set signal from the pulsing circuit, described more fully hereinafter, and receives a signal from the transistor T2 each time a code is read by the photo-diodes. If a hole appears under the same photo-diode in successive code combinations in the tape, the points Q6 to Q5 are at a negative d potential indicating coincidence. If, on the other hand, the first and second holes were different points, Q6 to Q5 would be at ground potential for no coincidence.

Each of the points Q6 to Q5 are connected to the D17-D22 portion of and gate D17-D24. If all the Q6 to Q5 are at a negative potential, indicating coincidence of two successive codes, the gate D17-D24 is opened and the or delay gate D76-D76 is opened which places iiipflop T13-T14 in condition to insert a delay in the pulsing circuit and to stop the tape reader.

If there is no coincidence, the collector of T14 is at ground potential and that of T13 is at a negative potential and the opposite occurs if there is coincidence. Transistors T13 and T14 lead to and gates D62-D63 and D66- D61, respectively, and each of these gates also receives a signal from the central pulsing photo-diode Pm through flip-flop T15-T16 and condenser C3. If there is no coincidence, flip-flop T26-T16 will operate the pulsing transistor T22 to send a pulse through the path which has been opened by photo-diodes P6 to P5 to energize a particular solenoid or to perform some function of the machine.

However, if there is coincidence, the oscillator T17-T13 will introduce a delay in the pulsing of the signal through ip-op T16-T26 to allow the second matrix to reach its releasing position and at the same time will stop the tape from being fed to prevent other matrices from being released. After a predetermined amount of time, the signal is released through the transistor T22 to release the second matrix and the tape is again allowed to move.

After each cycle, a signal from the pulsing circuit resets the ip-ilop of T4-T5 of the memory circuit to its normal state so that the cycle can start again.

Delays are also introduced in a similar manner for return, space band and add thin space signals. For elevate, lower rail and upperrail signals, extra long dlelays are introduced to permit these functions to be comp eted.

Referring to the drawings and more particularly to FIG. 2, control of the function of a line-casting machine (not shown) is accomplished by a perforated tape 6 having a series of perforations or

code openings

0, 1, 2, 3, 4, 5, therein and a central pulsing opening M. The tape 6 is moved through a tape reader P which has means for sensing the

code openings

0, 1, 2, 3, 4, 5, in the tape 6. In the preferred embodiment of the invention, as shown in the drawings, the tape reader P has a plurality of photodiodes P6, P1, P2, P3, P4 and P5 which are adapted to respond to light passing through the

code openings

0, 1, 2, 3, 4, 5, in the tape -6 as the tape 6 is moving through the tape reader.

The sensing of light from the code opening by the photo-diodes P6, P1, P2, P3, P4 and P5 will open a predetermined path in a circuit of the automatic line-casting machine.

The tape reader P is provided with a central pulsing photo-diode cell Pm which is adapted to pulse a signal through the path previously opened by the sensing of the code openings 0, l, 2, 3, 4, 5, to cause the machine to perform a function.

As fully described in said co-pending application Serial No. 95,577 described above, the photo-diodes P6, P1, P2, P3, P4 and P5 are coupled to a decoder circuit. The decoder circuit comprises a front end amplifier which arnpliiies the signal from each photo-diode P6, P1, P2, P3, P4 and P5. Depending on whether a hole or no-hole appears, a flip-Hop will open a circuit to either the no-hole line or the hole line of both an upper and lower decoder now to be described.

Each line is connected to several and gates of a rst set of three photo-diodes which constitute the upper decoder and another set of and gates are connected to the lines of the lower decoder comprising a second set of three i photo-diodes. A particular code opening combination in the tape will open a single path through the circuit which will cause the machine to perform a predetermined function. As the tape continues to move, the central pulsing opening M is sensed by the central pulsing photo-diode P,ln and a signal is pulsed through the open path to perform a function of the machine.

Each new signal from each of the photo-diodes P0, P1, P2, P3, P4 and P5 is compared with the old signal by means of a memory circuit and is transferred to a coincidenc gate through a memory flip-flop. The coincidence gate will be conditioned by the signals so that if the two are identical, it Will actuate a delay mechanism which will stop the feeding of the tape for a predetermined time interval in order to give the second matrix time to move to the release position before the actual signal is pulsed through the path.

An elevate and gate (DSO-D85 in FIG. 3) is provided and is in circuit with the front end amplifiers which receive the signals from the photo-diodes P0, P1, P2, P3, P4 and P5. After the matrices have been assembled on the elevator, an elevator code opening is sensed by the tape reader. This elevator code opening satisfies the elevator gate 10 so that a circuit is closed to the elevator-raising mechanism. When the next pulsing opening is sensed by the pulsing photo-diode, a signal is pulsed through the elevate circuit to raise the elevator to the casting position.

In order to move the tape back in the reverse direction when a malfunction occurs so that the tape will be at the beginning of a line to be recast, the movement of the tape in the forward direction must irst be stopped. The tape must then be moved in the reverse direction. While moving in the reverse direction, the reading of the code openings Po, P1, P2, P3, P4 and P5 by the photo-diodes M must be inhibited. However, the elevate code opening should be recognized so that the mechanism will sense when the beginning of the line to be recast has been reached. However, instead of raising the elevator, this elevate code opening is used to stop the movement of the tape in the reverse direction. The tape must then be moved in the forward direction but the rst elevate signal which the tape reader will sense must also be inhibited since there are no matrices on the elevator. All subsequent openings must be recognized by the reader.

The motor unit 9 for driving the tape reader P for moving the tape in t-he forward direction comprises the usual windings 11 and y12 and a third winding 113 adapted to apply full power when the motor is reversed. A double throw two-position reverse motor contact arm 14 movable from a normal position in circuit with contacts 15 to a position in circuit with contacts 16 is controlled by a reversing relay 17.

The reversing relay 17 is controlled by a control contact arm 18 of a latching-type control relay 19 having a set coil 20 and a reset coil 21. T-he control contact arm 18 is normally in circuit with a stop tape solenoid 22 through lead 23 and is movable into circuit with reversing relay 17 through lead 24 when the set coil 20 of the relay 19 is energized.

The stop tape solenoid 22 is controlled by a stop tape -switch 25 which is a push-on-push-oif switch. The latch-type relay 19 is controlled by a reverse tape switch 26 (which is a momentary switch) through the stop tape solenoid and control contact arm 18.

With the position of the parts as in FIG. l, the stop tape switch 25 is depressed to close the circuit to the stop tape solenoid 22 which is energized to stop the feeding of the tape 6. The tape then remains stopped until the reverse tape switch 26 is depressed. Upon depression of the reverse tape switch 26 the set coil 20 of the latching-type control relay 19 is energized to move the `control contact arm 18 to a position in circuit with lead 24. This movement of the control contact arm 18 breaks the circuit to the stop tape solenoid 22, thus freeing the tape for movement.

When the control contact arm 18 closes the circuit with lead 24, the reversing relay 17 is energized to move the reverse main contact arm 14 into contact with contacts 16 to reverse the direction of the power -so that 6 the motor now operates in the reverse direction and the tape moves in the reverse direction. In addition the winding 113 is now in the circuit so that maximum voltage is applied and the tape moves in the reverse direction at full speed.

It will be noted that lead 24 is in circuit with the pulsing circuit through lead 32 to change the logic from leading edge to the trailing edge of the pulsing opening Pm in the tape 6. Since the tape is moving in the reverse direction, the logic must be changed.

The lead 24 is also connected to one side of a flipilop 30. The ip-ilop 30 is connected to the decoder circuit through lead 33 and has its other side coupled to the elevate gate 10 through a capacitor 34 and to the circuit for supplying power on reset through lead 3S.

The lead 24 also feeds into a control and gate 31. The control gate 31 is also fed by the elevate gate 10 through an inverter 36 and by the photo-diodes of the tape reader through a trigger 37 (which may be a socalled Schmit trigger) and a capacitor 38.

The output of the and gate 31 is in circuit with a monostable iip-lop 40 having a timed output. One side of said flip-flop 40 is in circuit with the reset coil 21 of the control relay 19 through inverter 41 and the other side of flip-flop 40 is in circuit with the resetting circuit for the front end flip-flops through capacitor 42.

With this arrangement, when control contact arm 18 is moved int-o circuit with lead 24, power is directed on one side of flip-op 30 to hold it in the set position. This immediately places a negative bias on the decoder circuit to inhibit the reading of the code openings in the tape 6.

At the same time, the logic of the pulsing circuit is reversed since power is supplied to the pulsing circuit through lead 32 so that the trailing edge of the pulsing opening is read by the pulsing photocell Pm rather than the leading edge. This is necessary since the tape is in the reverse direction and the logic is also reversed.

Simultaneously, power is fed to the control gate 31 so that one of the three conditions of -gate 31 is met.

The tape 6 now is moving in the reverse direction, however, the decoder circuit which would ordinarily analyze the code openings in the tape is inhibited by the flip-flop 30. Hence no matrices will be released from the magazine. The tape 6 continues to move in the reverse direction until an elevate code opening appears on the tape 6.

When an elevate code opening appears on tape 6 (at the beginning of the line which is to be recast) elevate gate 10 is satisfied and a signal is pulsed through the capacitor 34 into the other side of the flip-flop 30. However, flip-flop 30 is not reset since it is still coupled to a negative voltage through lead 24, as discussed above.

A signal from the elevate gate 10 is also pulsed to the control gate 31 through the inverter 36. When the next pulsing opening is sensed by the central photo-diode Pm (at this point the tape is still moving in the reverse direction), the trigger 37 fires through capacitor 38 into.

the control gate 31 so that all the conditions of the control gate 31 are satisfied.

Once satisfied the control gate 31 tires a pulse into the Hip-flop 40. This energizes the reset coil 21 of the latching-relay 19 through the inverter 41 and, simultaneously, Hip-flop 40 sends pulse to reset the front end Hip-flops of the decoder circuit through capacitor 42.

Because of the fact that it takes longer for the reset coil 20 to be energized than for the front end Hip-flops to be reset, elevate gate 10 is reset before the control contact arm 1'8 is returned to its normal position in circuit with stop tape solenoid 22. When the latching-relay 19 is reset, the stop tape solenoid 22 is again energized to stop the tape and the circuit to reverse relay 17 is broken so that the reverse contact arm 14 again returns to the normal position in circuit with contacts 15 so as to put the motor into the forward position.

In addition, the logic is again reversed so that the leading edge of the pulsing opening is again read.

The tape has been stopped and will not move until the operator again moves the stop tape switch 25. When this occurs, the stop tape solenoid 22 is released so that the tape moves in the forward direction. The elevate code -opening (this is the same code opening that originally satisfied elevate gate 10 when the tape was moving in the reverse direction) is then read by the tape reader and the elevate gate 10 again is satisfied and pulses a signal through capacitor 34 to reset the flip-nop 30. This releases the inhibit on the `decoder circuit so that the operation resumes its normal sequence.

It will be seen that the present invention provides an improved control mechanism for line-casting machines whereby a defective line will be automatically reassembled and whereby the tape will be automatically moved back t0 the proper position. l As various changes may be made in the form, construction and arrangement of the parts herein without departing from the spirit and scope of the invention and without sacrificing any of its advantages, it is to be understood that all matter herein is to be intrepreted as illustrative and not in a limiting sense.

Having thus described my invention, l claim:

l. A control mechanism for a line-casting machine comprising a tape reader, means for moving a tape having code openings therein through said tape reader, means responsive to the code openings in said tape for performing a function of said line-casting machine, said code openings including an elevate code opening adapted to cause the elevator of the line-casting machine to elevate, means for stopping the forward movement 0f the tape, control means for reversing the movement of the tape through the reader and for inhibiting said function-performing means when the tape is moving in the reverse direction, means responsive to a predetermined elevate code opening in said tape for stopping the movement of the tape in the reverse direction, means for moving the tape in the forward direction, said control means preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening for releasing the inhibit on said function performing means.

2. A cont-rol circuit for a line-casting machine cornprising a tape reader, means for moving a tape having code openings therein through said tape reader, means responsive to the code openings in said tape, for performing a function of said line-casting machine, said code openings including an elevate code opening, an elevate circuit adapted to be closed by an elevate code opening, pulsing means for pulsing a signal through said elevate circuit to cause the elevator of the line-casting machine to elevate, means for stopping the forward movement of the tape, control means for simultaneously releasing the tape for reverse movement and operable for reversing the movement of the tape through the reader, means operable by said control means for inhibiting said function-performing means when the tape is moving in the reverse direction, said control means preventing said elevate pulse from raising the elevator when a predetermined elevate code opening is read by the reader while the tape is moving in the reverse direction, said control means being operable by the elevate pulse to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means for preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening for releasing the inhibit on said function-performing means.

3. A control circuit for a line-casting machine comprising a tape reader, means for moving a tape having code openings therein through said tape reader, means responsive to the code openings in said tape for performing a function of said line-casting machine, said code openings including an elevate code opening, an elevate circuit adapted to be closed by an elevate code opening, pulsing means for pulsing a signal through said elevate circuit to cause the elevator of the line-casting machine to elevate, means for stopping the forward movement of the tape, control means in circuit with said stopping means and operable to open a circuit to said stopping means and close a circuit to means for reversing the movement of the tape through the reader, means energized by said operation of said control means for inhibiting said function-performing means when the tape is moving in the reverse direction, said control means preventing said elevate pulse from raising the elevator when a predetermined elevate code opening is read by the reader while the tape is moving in the reverse direction, means for causing said elevate pulse to operate said control means to close the circuit to said stopping means to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means for preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader When the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening for releasing the inhibit on said function-performing means;

4. A control circuit for a line-casting machine oomprising a tape reader, means for moving a tape having code openings therein through said tape reader, means re` sponsive to the code openings in said tape for performing a function of said line-casting machine, said code openings including an elevate code opening, an elevate circuit adapted to be closed by an elevate code opening, pulsing means for pulsing a signal through said elevate circuit to cause the elevator of the line-casting machine to elevate, means for stopping the forward movement of the tape, a control relay in circuit with said stopping means and adapted to be energized to opening a circuit to said stopping means and close a circuit to means for reversing the movement of the tape through the reader, means energized by said control relay for inhibiting said function-performing means when the tape is moving in the reverse direction, said control relay adapted to prevent said elevate pulse from raising the elevator when a predetermined elevate code opening is read by the reader While the tape is moving in the reverse direction, means for causing said elevate pulse to operate said control relay to close the circuit to said stopping means to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means for preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening for releasing the inhibit on said function-performing means. 4

5. A control mechanism fora line-casting machine comprising a tape reader, means for moving a tape having code openings therein through said tape reader, means responsive to the code openings in said tape for perform-` ing a function of said line-casting machine, said code openings including I,an elevate code opening, an elevate circuit adapted to be closed by an elevate code opening, pulsing means for pulsing asignal through said elevate circuit to cause the elevator of the line-casting machine to elevate, a stop tape solenoid for stopping the forward movement of the tape, a control relay in circuit with said stop tape solenoid and adapted to be energized to open a circuit to said stop tape solenoid and close a circuit to means for revers-ing the movement of the tape through the reader, means energized by said control relay for in- 'hibiting said function-performing means when the tape 9 direction, means for causing said elevate pulse to operate said control relay to close the circuit to said stop tape solenoid to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means :forpreventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means respons-ive to said predetermined elevate code opening to release the inhibit on said functionperforming means.

6. A control mechanism for a line-casting machine comprising a tape reader, means for moving -a tape having code openings therein through said tape reader, means responsive to the code openings in said tape for performing a function of said line-casting machine, said code openings including an elevate code opening, an elevate circuit adapted to be closed by an elevate code opening, pulsing means for pulsing a signal through said elevate circuit to cause the elevator of the line-casting machine to elevate, a stop tape solenoid for stopping the forward movement of the tape, a control relay in circuit with said stop tape solenoid and ladapted to be energized to opening a circuit to said stop tape solenoid and close a circuit to means for reversing the movement of the tape through the reader, a iiip-flop activated by operation of said control relay for inhibiting said function-performing means when the tape is moving in the reverse direction, said control relay adapted to prevent said elevate pulse from raising the elevator when a predetermined elevate code opening is read by the reader while the tape is moving in the reverse direction, means for causing said elevate pulse to operate said control relay to close the circuit to said stop tape solenoid to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means for preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening to release the inhibit on said function-performing means.

7. A control mechanism for a line-casting machine comprising a t-ape reader, means for moving a tape having code openings therein through said tape reader, means responsive to the code openings in said tape for performing a function of said line-casting machine, said code openings including an elevate code opening, an elevate gate, an elevate circuit iadapted to be closed by the satisfaction of said elevate gate by an elevate code opening, pulsing means for pulsing a signal through said elevate circuit to cause the elevator -of the line-casting machine to elevate, ya stop tape solenoid for stopping the forward movement of the tape, a control relay in circuit with said stop tape solenoid and yadapted to be energized to open a circuit to said stop tape solenoid and close a circuit to means for reversing the movement of the tape through the reader, a flip-flop activated by operation of said control relay for inhibiting said function-performing means when the tape is moving in the reverse direction, said control relay adapted to prevent said elevate pulse from raising the elevator when a predetermined elevate code opening is read by the reader while the tape is moving in the reverse direction, means for causing said elevate pulse to operate said control relay to close the circuit to said stop tape solenoid to stop the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means .for preventing the elevator from elevating when said predetermined elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening to release the inhibit on said function-performing means.

8. A control mechanism for a line-casting machine comprising a tape reader, means for moving a tape having code openings therein through said tape reader, said code openings including an elevate code opening adapted to cause the elevation of the line-casting machine to elevate, a control circuit for said line-casting machine, said circuit including means responsive to the code openings in the tape for performing a function of said line-casting machine, said circuit including an elevate gate responsive to an elevate code opening in the tape to capse the elevator of the line-casting machine to elevate, a motor controlled by said circuit for moving the tape in the forward direction, a stop tape solenoid in said circuit for stopping the forward movement of the tape, a control relay in circuit with said stop tape solenoid and adapted to be energized to open a circuit to said stop tape solenoid and close a circuit to means for reversing said motor to move the tape in the reverse direction, a ip-op activated by said control relay for inhibiting the function-performing means when the tape is traveling in the reverse direction, means for causing a predetermined elevate code opening in said tape to energize said elevate gate, means responsive to said elevate gate to operate said control relay to close the circuit to said stop tape solenoid for stopping the movement of the tape in the reverse direction, means for moving the tape in the forward direction, means for preventing the elevator from elevating when said elevate code opening is read by the tape reader when the tape is traveling in the forward direction, and means responsive to said predetermined elevate code opening to release the inhibit on said function-performing means.

9. A line-casting machine, a control circuit for said line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader, means in circuit with said stop tape solenoid and operable to energize sai-d stop tape solenoid, a reverse motor contact arm movable from a first position to supply power to the winding of said motor in one direction to a second position to supply power to the winding of said motor in the reverse direction, means in said circuit adapted to control the position of said reverse motor contact arm, a control conta-ct farm adapted to move from a irst position contact in circuit with said stop tape solenoid 'to a :second .position contact in circuit with said motor contro-llin g means, a 4contnol rel-ay adapted to contro-l said ycontrol contact arm, .a decoder circuit `adapted to larralyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flip-iiop in circuit with said decoder circuit and having one side thereof in circuit with `said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting ip-op, a control gate in said circuit, said second position Contact of said main contact arm feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with the control relay' and in circuit with said decoder circuit.

10. A line-casting machine, control circuit for said line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor Contact arm movable from a first position to supply power to the winding of said motor in one direction to a second position to supply power to the winding of said motor in the reverse direction, means in said circuit adapted to control the position of said reverse motor contact arm, a control contact arm adapted to move from a first position Contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, :a latching-type control relay adapted to control said control contact arm, said latching-type relay having a set andre-set coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flip-iiop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting Hip-flop, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with the reset coil of the latching-type contact relay and in circuit with said decoder circuit.

11. A line-casting machine control circuit for said linecasting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a iirst position to supply power to the winding of said motor in one direction and to 1a second position to supply power to the winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position of said reverse motor contact arm, a control contact arm adapted to move from a first position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said control contact arm, said latching-type relay having a set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing la signal through said path, an inhibiting Hip-flop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting flip-flop, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second postion contact of said main contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with a reset coil of the latching-type control relay and in circuit with said decoder circuit.

12. A line-casting machine control circuit for said line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid 4in said circuit adapted to be energized to prevent said tape from moving through Isaid tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor contact .arm movable from a iirst position to supply power to the winding of said motor in one direction and to a second position to supply power to the winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position of said reverse motor contact arm, a control main contact arm adapted to move from a first position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said control contact arm, said latching-type relay having a `set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flip-flop in circuit with said decoder circuit and having one side thereof in circuit wth said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting flip-nop, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, a flip-flop in circuit with said control gate, said flip-flop in circuit with the reset coil of the latching-type control relay and in circuit with said decoder circuit.

13. A line-casting machine, control circuit for said linecasting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energize to prevent said tape from moving through said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a rst position to supply power to the winding of said motor in one direction to a second position to supply power to the winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position of said reverse contact arm, 1a main contact arm adapted to move from a iirst position Contact in circuitl said path, an inhibiting dip-flop in circuit with said decoderV circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the main contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting Hip-flop through a capacitor, a trigger circuit i connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main contact 4ar-m feeding into said control gate, said trigger circuit feeding into said control gate through a capacitor, said elevate gate feeding into said control gate through an inverter, a monostable ip-op having a timed output in circuit with said control gate, said monostable flip-flop in circuit with the reset coil of the latching-type relay through an inverter land in circuit with said decoder circuit through a capacitor.

14. A tape-operated control circuit for a line-casting machine, a motor for moving a tape through a tape reader, said tape having code openings therein, a stop" tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader,

lmeans in circuit with said stop tape solenoid and opy erable to energize said stop tape solenoid, a reverse motor contact arm movable from a rst position to supply power to the winding of said motor in one di-- rection to a second position to supply power to the 13 winding of said motor in the reverse direction, means in said circuit adapted to control the position of said reverse motor contact arm, a control contact arm adapted to move from a rst position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor controlling means, a tape control relay adapted to controlsaid control contact arm, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flip-flop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibit- 'ing flip-flop, a control gate in said circuit, said second position contact of said main Contact arm feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with the control relay through an inverter and in circuit with said decoder circuit.

15. A tape-operated control circuit for a line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through Said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a first position to supply power to the winding of said motor in one direction to .a second position to supply power to the winding of said motor in the reverse direction, means in said circuit adapted to control the position of said reverse motor contact arm, a control contact arm adapted to move from a first position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said control contact arm, said latching-type relay having a set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting ip-flop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting ip-flop, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main Contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with the reset coil of the latching-type control relay in circuit with said decoder circuit.

16. A tape-operated control circuit for a line-casting machine, control circuit for said line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a first position to supply power to the winding of said motor in one direction to a second position to supply power to the Winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position of said reverse motor contact arm, a control contact arm adapted to move from a first position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said control contact arm, said latching-type relay having a set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flipflop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting flipiiop, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, said control gate in circuit with the reset coil of the latchingtype control relay and in circuit with said decoder circuit.

17. A tape-operated control circuit for a line-casting machine, control circuit for said line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said tape reader, a normally open stop tape switch in circuit with said stop tape solenoid adapted to energize said tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a first position to supply power to the winding of said motor in one direction to a second position to supply power to the winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position of said reverse motor contact arm, a control main contact arm adapted to move from a irst position contact in circuit with said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said control contact arm, said latching-type relay having a set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting Hip-flop in circuit with said decoder circuit and having one side thereof in circuit with said second position contact of the control contact arm, said pulsing circuit connected to said second position contact of the control contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting flip-op, a trigger circuit connected to the pulsing circuit, a control gate in said circuit, said second position contact of said main contact arm feeding into said control gate, said trigger circuit feeding into said control gate, said elevate gate feeding into said control gate, flip-flop in circuit with the reset coil of the latching-type control relay and in circuit with said decoder circuit.

18. A tape-operated control circuit for a line-casting machine comprising a motor for moving a tape through a tape reader, said tape having code openings therein, a stop tape solenoid in said circuit adapted to be energized to prevent said tape from moving through said stop tape solenoid adapted to energize said stop tape solenoid when said stop tape switch is closed, a reverse motor contact arm movable from a first position to supply power to the winding of said motor in one direction to a second position to supply power to the winding of said motor in the reverse direction, a motor reversing relay in said circuit adapted to control the position, said reverse contact arm, a main contact arrn adapted to move from a rst position Contact in circuit With said stop tape solenoid to a second position contact in circuit with said motor reversing relay, a latching-type control relay adapted to control said main Contact arm, said latchingtype relay having a set and a reset coil, a normally open reverse tape switch in circuit with the set coil of said control relay, a decoder circuit adapted to analyze the code openings in the tape to open a path to a function-performing mechanism of said line-casting machine, a pulsing circuit for pulsing a signal through said path, an inhibiting flip-flop in circuit with said decoder circuit and having one side thereof in circuit with said second -position contact of the control contact arm, said pulsing circuit connected to said second position contact of the main contact arm, an elevate gate in the circuit, said elevate gate connected to the other side of said inhibiting ip-flop through a capacitor, a trigger circuit connected to the pulsing circuit, a control gate in said circuit,

References Cited by the Examiner UNITED STATES PATENTS 1,953,072 4/ 34 Casper 340-147 2,386,482 10/45 Leathers et al. 340--147 2,500,150 3/50 Bullard et al 318--466 2,834,928 5/58 Carter 318-466 2,989,590 6/61 De Boo 178-17 3,003,094 10/61 Gough S18-162 20 NEIL C. READ, Primary Examiner.

Claims

1. A CONTROL MECHANISM FOR A LINE-CASTING MACHINE COMPRISING A TAPE READER, MEANS FOR MOVING A TAPE HAVING CODE OPENINGS THEREIN THROUGH SAID TAPE READER, MEANS RESPONSIVE TO THE CODE OPENINGS IN SAID TAPE FOR PERFORMING A JUNCTION OF SAID LINE-CASTING MACHINE, SAID CODE CAUSE THE ELEVATOR OF THE LINE-CASTING MACHINE TO ELEVATE, MEANS FOR STOPING THE FORWARD MOVEMENT OF THE TAPE, CONTROL MEANS FOR REVERSING THE MOVEMENT OF THE TAPE THROUGH THE READER AND FOR INHIBITING SAID FUNCTION-PERFORMING MEANS WHEN THE TAPE IS MOVING IN THE REVERSE DIRECTION, MEANS RESPONSIVE TO A PREDETERMINED ELEVATE CODE OPENING IN SAID TAPE FOR STOPPING THE MOVEMENT OF THE TAPE IN THE REVERSE DIRECTION, MEANS FOR MOVING THE TAPE IN THE FORWARD DIRECTION, SAID CONTROL MEANS PREVENTING THE ELEVATOR FROM ELEVATING WHEN SAID PREDETERMINED ELEVATE CODE OPENING IS READ BY THE TAPE READER WHEN THE TAPE IS TRAVELING IN THE FORWARD DIRECTION, AND MEANS RESPONSIVE TO SAID PREDETERMINED ELEVATE CODE OPENING FOR RELEASING THE INHIBIT ON SAID FUNCTION PERFORMING MEANS.