US1429654A - snyder - Google Patents

Description

G. c. SNVYDER.

MEc'HANlcAi MOVEMENT..

A APPLICATION FILED MAR.6. 1920.

15542996 PatentedSept. 19, 1922.

3 SHEETS-S ET 1.

6.46. SNYDER.

MECHANICAL MOVEMENT.

APvPLICAATION FILED MAR. 5, i920..

Patentedept. 19

1922 3 SHEETS-SHEET 2.

G. c. SNYDER.

MECHANICAL MOVEMENT. APPL'ICATION FILED MAR. 6.1920.

Patehtd Se Hamm,

--sesHEETs-SHEET 3;'

. ...d5 imm @2W 2 mi Patented Sept. lt), 'M22 GEORGE C. SNYDER, OF.1\TEW YORK, N. Y.

MiioHAkNoaL MOVEMENT.

Applicationled March 6, 1,920. Serial. No. 363,823.

T 0 @ZZ whom. t may concern Be it known that l, GEORGE C. SNYDER', a citizen of the United States, residing at New York city, in the county of New York, 5 State oit New York, have invented certain new and us eful lmprovements in Mechanical Movements; and l do hereby declare the following' to be a full, clear, and exact description of the invention, such as will enable others skilled in the' art to which it appertains tomalre and use the same.

This invention which relates to mechanical movements has for its object the production of mechanical movements particularly adapted for controlling the loperation of various elements eta machine, or mechanisms associated with the machine, `from a moving part of the machine. The invention may be embodied in apparatus'of simple construction involving'the employment of a relatively small number of moving parts, and

eliminating the use vof complicated systems oit cams, eccentrics, gears and levers which are 'commonly Aemployed for effecting the automatic ,control Y ci machinery.

The objects of 4the invention are attained by the provision of a member to which an intermittentV inovemeiitfniay`be directly imparted from azm'oving part of the machine, and which is adapted during its movement to act-nate memberswhich are connected to various parts or desired shall be under intermittently moving purpose of the apparatus that it is the control of the member. For the providing additional controls there is associated with this member a recipw roc atin me mber which may be initially actuated by the same moving part of themachine vthat.4`

actuates the main controlling member, but which a'lfter its initial actuation to perform a controlling operation is taken' out of operative relation with the elementA or" the machine which causes such initial actuation and lation until remainsv in such inoperative reit is subsequently required to perform another controlling operation, at

which time vit yis restored to operative relation to the part oi' the machine by which it y movement.

actuated. by means under the control ot4 theintermittently moving lmer-.nber when the latter reach yThe p arti es a ypredetermined point in its cular nature'of the invention, as

' well as otherobjects and advantages thereof,

will appear more clearly from an illustration and description oi certain preferred embodinients, as shown in the accompanying drawings. Since the mechanical movements of the invention are of general utility they have not been shown in combination with any 1particular machine. In the drawings, Fig. 1. is a perspective view of the mechanism with the members adapted to control the elements of a machine broken away; Fig, 2 is a plan view of certain elements ot the mechanism in ltheir operative position; Fig. 3 is a corresponding view of the same elements in inoperative. position; and Fig. l is a view in elevation of the sanieelements of the mechanism, fiewed from the lett-hand side of Figs. 2 or 3; and Fig. 5 is a modifi-V cation in which the controlling spindle is arranc'ed to move horizontally.

Referring. to the drawings, 10 indicates a portion oic the 'trame of a machine,`the ele'- ments ot which are to be controlled bythe mechanical movements ont the invention. rlhe trame' is provided with bearings 11 which carry a main sha-ft 12` by which the machine is operated,` this shaft being provided with a pulley'ldiiven by a belt 14` from line shatting vprovided with a. clutch or other Vsuitable mechanism adapted to be controlled by a handle 15, which as will appear more clearly hereinafter is under the control or the mechanism of the invention.

rilhe controlling` mechanism may be actuated `from any desired moving element of the machine, but as shown herein it is controlled 'from the main shaft 12 by means of a collar 16 adjustablyr attached to the shaft and provided withy a tootlr17, which upon each rotation of the shaft engages and lifts a spindle by means ol" a series of conical ratchets 1S formed on the spindle and of sufficient number to permit the spindle to perform all ofits controlling functions. By making Vthe ratchets of vconical shape Athe spindle may be turned from time to time to bring different portions ot the faces ot the ratchets into engagement with the tooth 17, thus lessening the wear upon them.

ber 2O which is carried at the upper end of a screw 21 mounted in a bracket 22 attached tothe frame of the machine, the screw being provided with a member 23 by means ofA which its adj usted.

For the purpose of holding the spindle after each successive actuation,'there is provided a spring-pressed pawl 24, theshank of which passes through a bracket 25 carried upony a framework 26 of the machine. Connected to the outer end of the' shank ofthe position in the-bracket may be lpawlis an arm 27 attached to a shaft 28 36'and 37, respectively, on [ collars 38 and 38 adjustably attached tothe main shafty 12.

The bar 33 is provided with a longitudinal slot`39 by means of whicliblocks 40 and 41 may be adjustably .attached to l the bar. These blocks are'provided with inclined faces adapted to cooperate with rollers 42 and 43 carried between the oppositeends of arms 44 attached to a shaft 45 mounted in suitable bearings on the frame of the machine.; A

5 collar 46 carryinganarm 47 is mounted upon the shaft 45, and the arm is .connected by means of vay link 48 to an arm 49 on'a shaft 50k leading to onev of the elements of the machine that requires to the controlled in timed relation totheother `parts of the machine.

A similar arm .51Land connecting rod 52 may 'y ,f be employedvfor controlling. by means of a shaft 53 another element of the machine. It

will be understood that other yelements, of the machine may, yif desired, be controlled from the shaft45 by means of other connections.

. vThe lfront end of the bar 33 isy provided with an extension 54 Icarrying at its end a handle 55 byvwhich the bar may be manually manipulated ify desired, and also a pin 56 fitting Awithin a continuous slot 57 in a plate 58 carried uponsuitable standards pro-l jecting fro km the frame member 10 of the machine. e y.

Projecting from the edge ofthe bar 33 isv a pin y60` adapted to be engaged by a,

spring-pressed latch 61 mounted upon the frame of the machine. lmmediately in the rear of the pin y,60 the bar iseXtended as at 62 to provide a member which will engagethe latch 61 and' compress its spring as the bar is moved forward. The opposite end of the bar 33 is widened as indicated at 63 to provide an inclined face adapted to be engaged by a springfpressed latch 64 mounted at the end of the frame member 26.

It isy intended thatV the b-ar 33 shall be pulled out of its normal position by means of a spring 64 connected tothe bar and vto the frame of the machine. A secondy spring `65 is lconnected between the b-ar and the frame A'member 66 of the machine so as to pull the `bar rearwardly when it is released as will appear more clearly hereinafter.

F or the purpose of restoring the `bar to its normal position after it has been moved'L ,by the springs, there ,is provided a lug 67 whichy may be adjustably connected tojthe bar by means of a bolt passing through the slot 39. The lug-67 carries afdisc 68 rotatively mounted upon a pin 69-eXtending be-r v tween aforkedmember 7 0 carriedupon the endof a rod,r 71 and beneath `which isa I* shoulder 72 adapted to engagev theedge ofl the disc 68 to impart movement to the bar 33 through the lug 67:.'` The other en d ofthe rod 71 is connected by meanso-f ya universal joint 73 to the end ofy an arm 74 which isat-` tached to ashaft 175 mounted fin ksuitable bearings in the `frame of the. machine and adapted to be held in a normal positionby means of a spring 7 6 Iconnected at one end to an arm 77 attached to the shaft and at thek otherend to a pin 7 8, projecting from the frame of the machine. A stop 7 5 engaged by thev arm 77 limits the movement 'ofthe shaft. ,'The` shaft. 75 also carriesv an arm 79 which at itsouter 'end' is connected toa `rod 80 attached to al lever"81l pivotally'l mounted uponfa standard 82 attaohedto the frame member 10. IThe rother' end ofk armv8l carries a forked-memberVv 82",.pro-

vided wit-h rollers adapted toibe engaged by a collar 83 which is adjustably mounted on a threaded portion 84 of the spindle. i

los

The portion 85 of the spindle lying above i..

the portion 84 is also threaded, but` isfof lesser diameter. A nut 86 ismounted upon the threaded portion 85 and is adapted toengage and swing an armf87 which mayy bel used for controlling another element of the machine that should be brought into or taken ,i

out of action in timed relation; to the other elements of the mechanism.

Thefhandle 15 by which the transmission of power to the vmachine is controlled is also arranged so that it may be released by means of the spindle, in order to stop the machineafter its several elements have performed their functions under the .control ofthe ratchet f spindle. `For this purpose'the end ofthe i I `handle' 15 carries a stirrup-shaped member 88 through which passes a shaft 89 mounted in suitable brackets the frame of the ma lchine and carrying a member 90v providedl with a latching tooth 91 adapted to engage one side of the stirrup 88 when the handlev15 is moved forwardly into theposition it oc-A 3.80 l

cupies when the clutch is thrown to `permit power to be transmitted to the main shaft 12. A spring 92 connected between the handle 15 and the frame of the machine automatically throws the handle into position to disconnect the clutch and thereby stop the machine when the handle 15 is released from the latch 91. When the machine is in operation the latch 91 is normally held in position to engage t-he stirrup member 88 on the end of the rod by means of a spring 93 connected between the framework of the machine and an arm 94 carried upon the shaft 89. The shaft 89 also carries an arm 95 which is connected by means of a link 96 to one end of a bell crank lever 97 pivoted as at 98 at the upper end of the standard 82 and provided at its other end with a collar 99 surrounding the portion 85 of the spindle and adapted to be engaged by the upper end of the threaded portion S4 of the spindle as the latter is lifted.

In considering the operation of the mechanism described above, it will be assumed that the several elements thereof are in the position indicated in Fig. 1 with the spindle occupying its lowermost position, that is,

. with its extension 19 in the stop member 20.

The machine with which the mechanism is associated willbe started into operation by pulling the clutchv-controlling handle 15 until its stirrup 3,8 snaps over the latch 91, the shaft 89 being held in position by spring 93 to cause the lug to engage the stirrup.

As the main shaft 12 rotates, the tooth 17v will engage the ratchets 18 to lift the spindle one step for each rotation of the shaft. The spindle will be held in successive elevated positions by means of the pawl 24. The rst rotation of the shaft will also cause the tooth 37 to engage the lug 35 attached to the lower face of the bar 33 to advance the same and bring the inclined block 41 into engagement with the roller 43 to rock the shaft 45 and impart movement to the rods 50 and 53 which lead to elementsof the machine that should be put into operation during the first revolution of shaft 12. During the forward movement of the bar 33 the inclinedr face of the projection 62 will engage the latch 61 to swing the latter against the spring. The lug 62 is of such length and so positioned with respect to the other parts of the apparatus that the latch engages the outer edge of the lug when the pin 56 reaches the front corner of the slot 57. At this time the spring associated with the latch is under compression so that when the pin 56 reaches the corner of the slot the spring will force the bar 33 out of its straight line of travel. The effect of the spring' associated with the latch will also be reinforced by the pull eX-A erted by the spring 64, and the spring 65 will also tend to draw the bar 33, so that under the combined effect of the springs the bar will finally assume a position such as shown in Fig. 3 with the latch 64 in engagement with the face of the extension 63 at the end of the bar.

The travel imparted to the forward end of the bar as the pin 56 travels through the slot 57 will be sufficient to carry the inclined block 40 from a position in front of the roller around the side of the roller and into a. position such as indicated in Fig. 3, so that when the bar is restored to its initial position the inclined block will be in position to engage the roller 42 as will appear more clearly hereinafter. Y

As the spindle is successively raised by each rotation of the shaft 12, the nut 86 comes into engagement with the arm 87 to' swing the latter and put into operation the elements of the machine controlled thereby. Further elevation of the spindle will finally bring the nut S3 into engagement with the rollers 82 on the end of lever 31 to swing the latter, and through the rod 8O and arm 79 rock the shaft 7 5 and swing the arm 74 so that by means of the rod 71 the shoulder 72 will be brought into engagement with the disc 68 and through the lug 67 push the bar 33 against the effect of the springs 64 and 65 until it has been restored to its operative position. The parts should be so proportioned that when the bar occupies its normal position the rod 71 and arm v74 will lie in alinement, so that should there be any further rotation of the shaft 75 the arm and rod will be moved beyond their alined position to prevent them from exerting any further pressure upon thcy bar 33 with possible injury 'to the parts of the mechanism. is the bar swings, the latch 64 will be disengaged from the inclined face at the rcar of the bar, and the inclined block 40 will be brought into position behind the roller 42 while the lug 34 attached to the bar will be in position to be engaged by the tooth 36 as the main shaft 12 rotates. The forward movement thus imparted to the bar 33 will draw the inclined block 4() under the roller 42 to rock the shaft 45 in a direction opposite to that in which it was rocked by the inclined block 41, so as to rotate the shafts 50 and 53 in such manner as to move the elements of the machine in a reverse. direction to that in which they were moved by the initial action of these rods. After the bar L33 has moved forward sul'liciently to cause the inclined. block 40 to rock the shaft 45, the pin 66 will be brought in front of the latch 61 to hold the bar in its forward position against the retractive effect of spring 65. 1n the mecha-nism shown herein the inclined block -1-0 is provided with an intermediate flat portion so that the main controlling movement imparted to the shaft 45' ment to effect another controlling opera-tion before the inclined block passes from under the roller. f

' After the ratchet spindle has performed its functionof restoring the bar 33 to the initial position, as explained above, the

upper end of the portion Set of the spindle will subsequently be brought into engagement with the collai 99 to swing the lever 97, and .through rod 96and arm 95 rotate .the shaft 89 against the effect of spring with the ratchet of the spindle with which Y' izontally insteadof vertically, and in F ig.

it is in Contact, so as to permit the spindle to fall upon the stop member 20, whereupon the lever 81 will be' released so that spring 7 6 may swing the shaft 75 into the position indicated in` F ig. 1. Lever 97 will also be released to permit spring 93 to `rock the` shaft 89 to bring the latch 91 in position' to engage the stirrup member 88 when the handlel is drawn forward for the operation of the machine. l

In some cases it may be. advantageous to arrange the controlling spindle to move hor- 5 there is shown such a modification of the invention. In this arrangement the spindle is slidably mounted in a guide 100, 'and is adapted to be advanced'by a tooth on the main shaft-1527 which engages the ratchets 18 on the spindle. A stop member-101 is adjustably mounted upon guideways 102 associated with the frame of the machine. The stop member is provided with a bore through which passes a cord 103 attachedat one .end

lto the end of the spindle. The cord passes over a pulley 104, and a weight 105 is attached to its other end. A pawl 24 is provided for holding the spindle against the effect of the weight 105, after it has been advanced by the tooth on the main shaft 12. This pawl may be released from engage- Vment with the spindle by meansof a treadle,

'as in "the modification of the invention shown in the preceding vfigures.

In order to simplify the drawing the va-;

rious elements adapted to be controlled by the spindle have not been shown in detail in Fig. 5, as it will be clear that the spindle may be provided with collars 106 adapted 4 to en'gagearms 107 connected to shafts by y which the elements of themachine may be controlled.. vlt will also be understood that a controlling bar such as 33 of the preceding `horizontally arranged spindle of Fig. 5

figures may be used in conjunction with the and that such bar may be used for controlling elements of the machine in the manner previously described;

f The mechanical movements constituting the invention are particularly adapted for controlling machines for manufacturing are' ticles in'which certain rotations of the main .shaft 12 produce steps in the operation of manufacture. By adjusting the position of the stop member 20 and the position ofthe nuts 83v and 86 on'the spindle, the number of successive operations that will be per formed upon the article being manufacturedmay be predetermined by the number of ratchets 18 that will be successively engaged by the tooth 17 before the end of the portion 84 of the spindle is brought into engagement with the collar 99 on the end of lever 97 to stop the machine, and the timing may be governed by the position of tooth 17A in its relation to shaft 12. The mechanism also insures that the same number of .steps will be performed upon each of the articles being manufactured and at identical times in the case of each article. After each article has been manufactured the spindle may be restored to its position upon' stop member 20, so that during a subsequent operation of the machine the movement imparted to the spindle before it comes intoposition to stop the machine will be the same as in the preceding operation, land the various elements of the machine' that areunder the control of the mechanism ofthe invention will be actuated in the same predetermined timed relation to each other for each article manufactured. The time relation between the controlling functions per formed by the spindle and those performed bythe bar 33 may, however, be yaltered by changing the relative position of the collars 16, 38 and 38 rupon the main shaft of the machine.

The constructionpossesses the further ad-v vantage that if at any time while'the machine is ruiming, it is desired to change the 'number of functions being performed by the machine, the spindle may be manuallyy lifted between successive functions, so that the portion thereof which stops the machine will Ibe Abrought into action in' advance vof its normal time, with the result that a lesser number of operations are performed upon the article being manufactured, but the control over the elements of the machine effected by the upward movement of the spin`E dle will take place in the manner described.l

In case it is desired to increase the number of functions being performed bythe machine while it is ruiming, the pawl 2A may berreleased by depressing the pedal 30 so as to allow the spindle to fall backto its position upon the stop member 20, so that a -correspondingly increased number of successive upward movements must be imparted to the spindle before it exercises its function ,in controlling the elements of the machine and ultimately stopping the machine,

I claim:

l. In a mechanical movement for controlling the operation of a machine, the combination of a controlling member, means for imparting a step-by-step movement to the `member, and means associated with the member and vadapted to actuate controllingelements of the machine as the member is advanced.

2. Amechanical movement adapted to control the operation of a machine, comprising a member provided with a ratchet, means associated with` the machine to be controlled and adapted to cooperate with the-ratchet for advancing the member, and means associated With the member and adapted to actuate controlling elements of the machine as the member is advanced.

3. Amechanical movement adapted to control the operation of a machine, comprising a controlling member, means associated With the machine to be controlled for advancing themember, meansyassociated with the member for actuating controlling elements of the machine as the member is advanced, a second controlling member, means associated with the machine to be controlled for actuating the second controlling member to perform a controlling function upon the machine, means for taking the seco-nd controlling member out offoperative. relation to the machine, and means under the control of the first named controlling member for restoring the second controlling member to opera- `'tive relation to the machine.

4. A mechanical movement adapted to control the operation of a machine, comprising a controlling member, adapted to be actuated by the machine to be' controlled forV performing controlling functions upon the machine, a second controlling member adapted to be actuated by the machine for performing additional controlling functions, means for taking the-second controlling member out of operative relation to the machine,'and

means under the control of the` first named controlling member for restoring the second controlling member to operative relation to the machine to permit it to perform controlling functions.v

5. In a mechanical movement for controlling the operation of a machine, the combination of a member provided with conical ratchet teeth, a paWl associated with the machine to be controlled for advancing the member, means for holding the member in successive advanced positions, and means associated with the member for actuating controlling elements of the machine.

6. In a mechanical movement for controlmachine, and an adjustable stop adapted to be engaged by the member to determine the initial position thereof.

7. In a. mechanical movement for cont-rolling the operation of a machine, the combination of a member provided With conical iatcliet;teeth, a tooth associated with the machine to be controlled for advancing the member, means for holding the member in successive advanced positions, means for releasing the holding` means, means for limiting the movement of the member When it is released, and means associated with the member for actuating controlling elements of the machine.

8. ln a mechanical movement for controlling the operation of a machine, the combination of a member to which a step-by-step movement may be imparted from a rotating element of the machine, means associated with the member for actuating controlling elements of the machine. a stop adapted to be engaged by the member, and means for adjusting the stop to determine the initial position of the member with respect to the controlling elements of the machine that are actuated by the advance of the member.

ln a'mechanical movement for controlling the operation of a machine, the combination of a member to Which a step-by-step movement may be imparted from a rotating element of the machine, a. stop against which the member may be drawn by gravity, and means for adjusting the stop Ato determine the initial position of the member with respect to the controlling elements of the machine that are actuated by the advance of the member.

l0. A mechanical movement comprising a spindle provided with ratchets, means adapted to engage the ratchets successively to advance the spindle, a bar, means for advancing the bar longitudinally, means for moving the bar laterally after it has been advanced, and means under the control of the spindle for restoring the bar to normal position. 1

ll. v mechanical movement comprising a spindle provided with ratchets, means adapted to engage the ratchets successively to vadvance the spindle, a bar, means for adioy l2. A mechanical movement comprising a 'reciprocating member, means for imparting reciprocating member, means for imparting a step-by-step movement to the member, a

bar, means for advancing the bar longitudinally, springs for moving the bar laterally and retracting the same after it has been advanced, a member adjustably attached to the bar, a disc rotatably mounted on the member, a rod formed at its end to engage ythe edge of the disc, a shaft, means conlnested to the shaft and adapted to be .actuated by the reciprocating member for rotating the shaft, and an arm connected to the shaft and the rod for actuating the latter to overcome the springs and restore the bar to normal position, the arm and rod being 'so proportioned that when the bar is'in normal position they Will lie in alinement with each other.

14. ln a mechanical movement for controlling the operation of a machine, the combination of a controlling member, lmeans associated With the `machine for imparting a -step-b'y-step movement to the' member, a

shaft, means associated with the shaft for actuating controlling elements of the machine, a bar, means associated With the machine for advancing the bar, means mounted on the bar for swinging the 'shaft yas the bar is advanced, means for taking they vbar out of operative relation to the advanc ing means, and means adapted to be actuated by the controlling member for restoring the bar to normal position, and means mounted on the bar and adapted'to be brought into position, When the bar is restored to normal position, to swing the shaft in the opposite direction upon a subsequent advance of the bar.

l5. ln a mechanical movement for controlling` the operation of a machine', the

combination of a controlling member to which a step-by-step movement may be imparted from a continuously rotating'element of 'a machine,'means associated with vthe member for successively actuating controlling elements of the machine as the member is advanced, a secondv controlling Lelement y adapted to be` initially' actuated by the same continuously rotatingy element of themachine to perform a controlling function,

means for taking the second controlling ele- `ment out of operative relation to the rotatingelement, and means adapted to be actuated by the first controlling' member when .it reaches predetermined point forres'toring the' second controlling member to operative relation tothe rotating element so that Vanother controllinovoneration ma beere, Y` V formed. l Y l v l 16. ln a mechanical movement for controlling'the operation of a machine,th e combina'tion ofV al member to Which astep-by- `step movement may be imparted from la rotatingv element ofthe machine, a member adjustably mounted'upon the'first named member, and adapted to contact' at af prede-1 termined'time duringa step movement With another member for performing an automatic function. f 'y 17. A mechanical movement comprising a rod provided With ratchets,'a shaft, atooth mounted onthel shaft and adapted to advance the rod a step for each revolution' ofv the shaft, means for' holding the rod in advanced position after each step, and means adjustably connected with the rod forperforming automatic f 'functions duringl kthe advancey of thev rod at predetermined `stages of such steps. j

18. A mechanical movement comprising 'a ratchet rod actuated'by a tooth mounted-on a rotating member to produce a step movement for each rotation, means connected With-the rod for 'producing automatic functions at predetermined stages ofthe-steps through members adjustably mounted upon the rod, and means for adjusting` the position of the tooth in its relation tol the rotating member.- t 1 f f. i 19. ln ay mechanical movement the combination of main shaft, a spindle provided Withratchets, meansadjustably mounted on the shaft and adapted to engage the -ratchets successively to advance thespindle, a bar,

means adjustably mounted on lthe main shaft for initially advancing lthe bar longitudi-l nally, means for moving the bar laterally after it has been advanced, and means under the control of' the spindle for restoringthe bar to normal"position. i ,A y. f

In testimony Where-of I*afixmysignature.C

snoneii c. .siii-fijan.

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