US981951A - Printing-couple appliance. - Google Patents

Description

W. SCOTT, DEGD. 1.4; n. J. SCOTT, EXEOUTORS. PRINTING COUPLE APPLIANCE.

APPLICATION rum) MAY 20. 1907.

Patented Jan. 17, 1911.

2 SHEETS-SHEET 1-.

E 1/ Ma r W. SCOTT, DECD.v 1. 1). J. soon, nxsou'rons. PRINTING COUPLE AEPLIANGE. nrmuulox FILED an 20'. 1901.

Patented Jan. 17, 1911.

2 SHEETS-SHEET 2.

sen-951.

w m Z .w a A M0 n stress WALTER SCOTT, 0F PLAINFIELD, NEW JERSEY; ISABELLA SCOTT AND DAVID JOHN SCOTT EXECUTORS OF SAID WALTER. SCOTT, DECEASED.

Specification ofLetters Patent.

Patented Jan. 17,1911.

Original application filed December 30, 1905, Serial No. 293,884. Divided and this application filed May 20,

190?. Serial No. 374,550.

To all whom it may concern:

Be it known that I, vVAmnn Soon, a citizen of the United States of America, and a resident of Plainfield, Union county, New Jersey, have invented certain new and useful Improvements in Printing-Couple Appliances, of which the following is a specification.

The present invention relates generally to rintin machines, and has more particuorgy re erence to printing couple appliances. his case is a division of an application filed December 30, 1905 Serial #293884. In that application certain printing couple up pliences are claimed in combination with a tripping mechanism for the cylinders of the machine. The present application is intendedjtii cover this certain construction of printin' tgcouple appliances without reference to the tripping mechanism for the printing coiiple.

he object of the present invention is to retain a sheet as long as may be desired on an impression or other cylinder.

To this end the invention embraces grippers on the impression cylinder and means pressi'on or 0t for trippin the said grippers. ln' connection with t e above there may also be employed throw-0d fingers and guides which can be tripped and untripped simultaneously with the grippers. While the object of this as has been previously stated is to maintain a. sheet as Ion as may be desired on an hit her cylinder, it is obvious that the invention herein disclosed *meybcmtoyed forlany purp for which maybe ound useful, and the object of theinvention is therefore not to be construed, as it limitsi101! of its functions,-

Other features of construction; arrangement of parts and combination of elements will a peer as the specification proceeds.

In t e accompanying drawings the inven' tion is embodied in a concrete and preferred form. It is obvious however, that a wide departure may be made from the particular construction disclosed without departin from the legitimate and intended scope o the invention. I

' In the said drewings:-I Figure 1 is a side construction for fI'GVQlllliiOl'l type. A

sion cylinder we transfer or other e hinder" elevation of so much of the printing machine as 1S. necessary to properly illustrate the invention, showlng the members adjacent to the impression cylinder in the proper position to deliver the sheet. 'Fig. 2 is an end view looking in the direction of the arrow. 2 of impression cylinder is about to receive a sheet. Fig. 4 is a view similar to Fig. 3 but cylinder.

Similar characters of reference indicate corresponding parts of the difierent views.

1 indicates a frame work'of any suitable lproperly supporting the parts comprising t machine.

2 indicetes an impression cylinder and? i the plate cylinder, the two constituting together a printing couple of the rotary multijacent to the im res l, end smother transfer cylinder 5 is disposed adjacent to the impression cylinder and adapted to "receive sheets therefrom. This cylinder 5 may be e collecting cylinder as desired; All of the cylinders are connected by gearing in the usual manner andreceive showing the 'efi'ect of the interrupting means and the members adjacent to the impression their motion preferably from the driving 1 pinion 6.- The impression cylinder preferably does not deliver its sheet to the transfer 0 linder 5, but delivers it to suitable gui es 7 interposed between the said impression and transfer cylinders, so that the sheet may be carried on to be delivered with its tinted side up. the trensicc or co acting cylinder 5 the sheet may be delivered in any suitable way, as by means of u delivery or otherwise. cylinder is provided with spring-seated grippersB of the usual and ordinary construction, having a crank with friction roll 9 adapted to come in contact with a suitable cam for opening the said'gripfirs. Inusmuch as-J-the delivery pointof t 's'cylinder is but a'short distance away from the re- The said impression both to receive and. release the sheet. This cam, which is designated by the numerallO, is adapted to open the gripper mechanism during the first revolution of the cylinder tp' receive the sheet, and again to open the p stripper mechanism during its second revolition, to deliver the sheet, the said cambelin moved into diiifereht ositions'to e ect {this operation.L Preferab ly this, cam is caused to oscillate. around the shaft of the cylinder by being provided with the sleeve 2 11, which, at its outer end, is provided with the gear segment 12 adapted to be operated hv any suitable means toshift the cam back 'ahd fort a certain distance or to properly position the said cam with reference to the receiving or'the be. i l 13 is a rotating'camwhich imparts proper motion to the gear .se tor 14, pivoted at 15,

delivery point as the case and provided with an arm 16 having a friction roll 17 which-engages with the said cam 13. This cam 13 makes one revolution to every two revolutions of -t e impression cylinder. The movement 0 the cam 13 will 50 thus be imparted to thejsdgmient 12 through the instrumcntality of the gear sector 14.

The impression cylinder is mounted in an eccentric bushing18 upoi its shaft, whereby,

when the said ecdentric blishing is turned 111 315 opposite directions, the imfpnession cylinder will be moved in and onto printing contact with the plate cylinder. The distance which it is necessary to raise this impression cylinder in order to trip the impression is only ahout one-eighth of an inch, so that the gears on the respective cylinder need not be outfof mesh with each other. The said eccentric bushing 18 is connected by means of the short cam 19, connecting 1 rod 20 end lever 21 to the rockshaft 22.

Suitable means are provided for rocking this roekshaft at regular intervals so as to automatically trip and untrip the impression atpredetermined intervals. In the present instance, the impression is tripped during the second revolution of each cycle of the machine. Obviously, the means for accomplishin this may be varied widely, but preferahy there is mounted upon the cam shaft 23 a cam 24 which is given one revolution to a number of revolutions (in the present instance to every two revolutions) of the machine.

Mounted loosely on the stud 25 is an arm 26 provided with a roller 27 adapted to engage in the cam groove of the cam 24. Suitable means are provided for communicating the motion of the arm .26 t0 the rockshaft 22. In "the. present instance, these means take the form of a slotted connection 28 position.

connected, by means of the lever 29, to the rockshaft aforesaid, and receiving the motion of the arm aforesaid by means of a pin 30 carried at the lower end of the said arm and adapted to play in the slot 31 of the con-" nection aforesaid, and to be locked with the said connection when the pin 30 is in the recess 32 of the said slot.

Interrupting means are provided for lifting the'slotted connection so as to cause the pin 30 to play idly in the slot 31, whereby the form and impression members will be maintained separated or tripped as long as the slotted connection is held in its elevated In other words, an interrupting means is provided for the automatic tripping and untripping means. This interrupting means will referably'take the following form: A roc ing cam 34 is mounted slidably on the shaft 35 and is provided with the pin '36 extending in under the slotted connection so that when the said rocking cam 34" is: moved into the plane of the cam or pin 37 conveniently =.mounte d on the cam I 24, the' said pin 37 will come in contact with the cam-surface 39 of the rocking cam 34, thereby rocking the latter and lifting the slotted connection up so that the pin 30 will play idly in the slot 31. The said interrupting means may of course be operated from.

any suitable actuating device under the infiuence of an automatic feeder, or, as in the present mstance, under the control of the operator. I have here shown a conventional treadle 38 which, when it is depressed, will,

through suitable connections, move the member 40 so as to cause the latter, by means of its bifurcated end 41 to move the rocking and sliding cam 34 into the plane of the pin.

37. This may of course be eflected'by various mechanical contrivances, but, in the present instance, there is shown a rockshaft 42 suitably connected to the foot treadle by means of the rod 43 and lever 44.

Mounted on the impression cylinder, are suitable throw ofi' fingers 45 having a crank carrying the roll 46 in the usual manner. Mountedon the stud 47 is a throW-ofi' cam 48 which is adapted to be positioned so as to be in the plane of the roll 46 during the second revolution of the impression cylinder, and to be out of the plane of the said roll. 46 during the first revolution of the said cylinder. This throw-off cam is operated synchronously with the tripping and untripping of the impression, and is therefore conveniently operated from the rock shaft.

throw-oil cam to receive the sheet, and are ear est therefore conveniently operated from the latter by means of the projection 55 and the jaws 56. Preferably these guides carry a stop to prevent them from digging into the cylinder, conveniently taking the form of an arm 57 provided with a friction roll 58 which is adapted to rest on the surface of-the cylinder.

59 is a stop for preventing the positioning of the cam 10 to release the sheet when the impression remains tripped. This stop 59 is pivoted at 60 and is also conveniently operated from the rockshaft 22 by means of the bent projection 61 connected to the lever 29 and connected at its other end to the lower end of the stop 59. A. suitable means or projection 62 is provided on the sleeve 11 which is adapted to abut against the said stop 59 under certain conditions.

When a sheet reaches the axial line between the cylinders l and 2 the cam 10 will be in the position shown in Fig. 8 so as to allow the grippers on the said impression cylinder to seize the sheet. At this time, however, the guides 7 and the throw-oft cam 48 will he in the position also shown in Fig. 3, so that the sheet will be carried past them and will receive an impression between the cylinders 2 and At this time also the stop 59 will be in the plane of the projection 62. The sheet will then be carried around past the axial line between the cylinders 4 and 2, when the cam 10 will iave moved into the positionshown in Fig. 1, the throw-off cam 48 and guides 7 will be properly positioned so as to cause the sheet to be released from the cylinder 2, and deposited on the guides 7 The stop will also have moved out of the plane of the projee tion 62 as shown.

It will be clear that during the normal operation or the machine, the automatic means previously described will trip and antrip the impression, the timing of the parts being suchthat the impression will be untripped after the sheet has been taken on by the impression cylinder and carried a certain distance over the same, The cylinders are then moved into printing contact so as to allowthe sheet to be properly printed during the first revolution and simultaneously therewith the connections from-the roclrshatt 22 will operate to position the throw-oft cam 48 and the guides 7 While the cam 10 will be moved into the position shown in Fig. 1 and the stop' 59 moved out of the plane of the projection 62,}; The impression is then tripped again, and the elements moved into the position shown in Fig. '3 before the next sheet is received.

Assuming now that it is desired to maintain the parts in their tripped position, the

parts being in the position shownin Fig. 3, the operator will then depress the treadle, nefores the printmg 'cyhndereare moved for preventing the operation wwith animpression or other cylinder, pars on the, cylinder, throw-oft fingers adJainto printing contact thereby maintaining them in their separated position. Obviously then the parts will remain in the position shown in Fig. 3. The operating means for the cam 10 will attempt to move it into the position shown in Fig.- 1, but the cam will be prevented from oscillating owing to the fact that the stop 59 will be in the path of the projection 62 and the parts will therefore assume the position shown in Fig. 4 whereby the sheet which has been received from the transfer cylinder will be carried around on the impression cylinder without being printed, and as the-cams l0 and 48, as well the guides 7, are not properly positioned so as to release the sheet and deliver it to the guides 7, the sheet will be held on the said impression cylinder as long as it re mains tripped. If it is desired to maintain the parts tripped for more than one cycle, the operator can move the locking member 63 into engagement with the treadle, and thus trip it for any period desired. Since, however, the cam 10 will be in the plane of the grippers on the impression cylinder at the point where they receive a sheet, the said grippers will be opened once toevery revolution, but there being no sheet to re ceive, they will close again on the same sheet Which already on the cylinder and continue to carry the same around. In order to assist in holding the said sheet in the bite of the grippers on the second impression cylinder, 1' provide the rollers 64 which are adapted to rest on the margins of the sheet or elsewhere, to assist in propelling the sheet at the time when the grippers are opened] These rollersare mounted on the arm 65 pivoted at 66. If the interrupting means are released, the automatic means for tripping and untripping the cylinders will regain control of the machine, and the sheet on the impression cylinder, will be printed during the succeeding revolution, and placed on the guides 7. When the treadle is released, the counterweight 67 will move the rocking and sliding cam out of the plane or" the'pin'on the cam 24. 7

What is claimed is 1. In a printing machine, the combination with an impression or other cylinder, of grippers on the said cylinder, throW-ofi' fin ers' adjacent thereto, meansfor. opening the said grippers at a certain point during the revolution ot'the impression cylinder, meansgfdl". operating the throw-0d fin'gersflin har'moiiy-l therewith, and means normally inoperative of the said opening means of the grippers and the means for operating the throw-oft; fingers- 2. in a printing machine, the combination cent thereto, means for opening the said grippers certain point once to a numof gripcent thereto, means for opening the said grippers at a certain point once to every 'two revolutions, means for operating the throw-ofi' fingers in harmony therewith, and means normally inoperative but adapted to be actuated for tripping the said opening means for the grippers and the operating means for the throw-off fingers.

.4. In a printing machine, the combination with a cylinder, of grippers mounted thereon, throw-oil fingers adjacent to the said grippers, cams for opening the grippers at a certain point to release the sheet, and for operating the throw-elf fingers, and means normally inoperative but adapted when actuated to cause the cams to move out of their operative position with relation to the grip pers and throw-off fingers.

for opening t 5. In a printing machine, the combination with a cylinder, of grippers mounted thereon, a cam adapted to open the grippers at one point when properly positioned, means for positioning the said cam, and a stop for preventing it from being ositioned.

6. In a printing maciiine, the combination with a cylinder, of grippers mounted thereon, a cam loosely mounted on the cylinder shaftadapted to open the grippers at one point when proporely positioned, means for oscillating the said cam to properly position the same, and a stop for preventing its oscillation.

7. In a printing machine, the combination with a cylinder, of grippers mounted thereon, throw-off fin ers adjacent thereto, a cam fie grippers to release the sheet when properly positioned means for positioning the said cam once to a number of revolutions, a cam adapted, when properly positioned, to operate the throw ofi fingers once to a number of revolutions in harmony with the opening of the grippers, a stop to prevent the positioning of the cam for opening the grippers adapted to be in the path of the said cam when the latter is not positioned, means for positioning the .cam for the throw-off fingers, means for moving the stop into and out of the path of the gripper cam, means for interrupting the movement of the throw-oft cam so that'it is not posi tioned, and means for interrupting the movement of the stop so that it remains in the plane of the gripper cam, thereby preventing the said gripper cam from being positione 8. In a-p'rlnting machine the combination I with a cylinder, of grippers mounted thereon,

when properly positioned, means for positioning the said cam once to a number of from the cylinder, when properly positioned once to a number of revolutions, a cam adapted, when properly positioned, to operate the throw-ofi' fingers once to a number of revolutions in harmony with the opening of the grippers and the proper positioning of the guides to receive the sheet, a stop to prevent the positioning of the gripper cam adapted to be in the path of the said cam when the latter is not positioned, means for positioning the guides and the throw-off cam, means for moving the stop'into and out of the ath of the gripper cam, means for interruptlng the movement of the guides and throw-01f cam so that they are not positioned, and means for interrupting the movement of the stop so revolutions, guides for receiving the sheetthat it remains in the plane of the gripper for shifting the cam to cause opening movement of the grippers at difi'erent po1nts in the revolution of the cylinder and means adapted to be positioned to prevent shifting of the cam.

tion with a cylinder and grippers, a cam causing operation of the grippers, means for 11. In a printing machine, the combina-- shifting the cam to cause operation of the grippers at different points in the revolution of the cylinder, and means for holding the cam to preventoperation ofthe grippers.

12. In a printing machine, the combination with a cylinder, grippers carried by the cylinder, a cam for opening the grippers at diiierent points to receive and release sheets,

means for automatically shifting the cam to receiving and releasing positions, and means adapted to be actuated to prevent the automatic operation of the cam.

13. In a printing machine, the combination with a cylinder and grippers, a cam for,

opening the grippers, means for automatically moving the cam to cause it to operate the grippers at; different points, and means for holding the cam in such a position as to render the grippers inoperative.

" '14. In a print-mg machine, the combination with a cylinder, grippers and throw-oft =lingers on the cylinder, a cam to open the grippers, means for shifting the cam to cause 1 Signed at Plainiield N 5. this 17 day of the grippers to open at difierentpoints to May i907. recelve and release sheets, a cam to cause operation of the throw-off fingers in syn- WALTER SCOTT j chronism with the grippers, and means for \Vitnesses:

tripping the parts to cause the grippers and J. B. Co'ntmn, throw-oft fingers to remain inactlve. DAVID Soorrr.

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