US1651452A - Controlling mechanism - Google Patents

Description

Dec. e,- 1927. 1,651,452

G. GODDU CONTROLLING MECHANISM Filed March l9 3 Sheets-Sheet l Fig.1.

G. GODDU CONTROLLING MECHANISM Dec. 6, 1927. 1,651,452

Filed March 19l 9 3 Sheets-Sheet /I/IIIIIIII ii .11 m

Dec. 6, 1921. I 1,651,452

G. GODDU CONTROLLING MECHANISM V Filedfinch 17 1913 3 Sheets-Sheet 3 "MIMI-ll My,

Patented Dec. 6, 1927.

UNIT-E D TATE PATENT oFFicE,

ononcn scene, or wincnnsrnn,'iaassncircsiir'rs, AssIeNoR TO UNITED snon mn- GHINERYCORBORATION, or PATERSON, NEW JERSEY; A oonronnmon Op. NEW

JERSEY.

CONTROLLING MECHANISM.

Application filed March 17, 1919. Serial No. 283,018.

This invention relatesto controlling mechanisms and is illustrated herein as embodied infainechanisn for controlling thesupplying of metal strips or blanlts to an automatic nail making machine. V v

Letters Patent of the United States, No. 1,396,191, granted NoinB, 1921, on my. copen ding application, Serial No. 169,562, discloses mechanism for feeding strips to a nail making machine comprising a carrier for presenting the strips to the machine in cluding a nozzle and means controlled by a strip in thecarrier for automaticallysupplying strips to the carrier. ;One of: the objects of the present invention is to provide improved mechanism for controlling the sup ly ofstrips to the carrier of the same general character as that forming the subject-matter of said Letters Patent. V

To this end, the invention 'aims to provide means'for controlling the operation ofthe strip supplying meanswhich shall be simpler in construction andniore positive and reli-- able in itsoperation than the devices hitherto employedfor suchpurpose. In accordance with this feature of the invention, the means carried by the presenting meansfor initiating the supply of'a strip to the presenting. means from the supplying means is designed to be rendered iuoperativeby means operatively connected to the supplying means. Accordingly, operation of the sup plying means through asinglecycle adapted to supply a single strip to the presenting means prevents further operation of theisupplying means until the parts have been reset which is preferably accomplished through the instrumentality of theistrip freshly supplied to the presenting means. .Preferably,

and in the illustrated construction, the controlling means for. the supplying meansis actuated by a member on the presenting means constructed and arranged for engagem with a stri in the iresentin means and comprises a device noriiia-lly positioned so as torenderthe supplying means'inoperative and a shifter, for said device disposed for actuation by the strip engaging member on the presentingnieans. v x

Features of the invention relateto a novel clutch" mechanism and to a shifter ,mechanism for connecting and disconnecting the clutch members vhereb-y .the driven clutch comiections 'member is given one revolution and then automatically disconnected. Another feature of the invention comprises novel mechanism for resetting the shifter mechanism.

Other important features of the illustrated machine-are not claimed herein since they are claimed in applicants patent application, Serial No. 174,078 filed Mar. 9, 1927, which is a division of the present application. Y

Although the invention will be hereinafter described as embodied in mechanism for feeding strips to av nail making machine, it is recognized thatthe invention as a whole and certain features thereof are not limited to-such use. Accordingly, the scope of the invention is intended to be limited only as required by the claims.

, Still other objects of the invention will I appear as, the description proceeds and will be pointed out in the appended claims.

.Inthe drawings, i

Fig. 1 is a View in side elevationof a machine embodying the invention V i Fig. 2 is a: view in perspective of the main operatingpa-rts of thema'chine; 7 Fig. 3 is a plan VlQW of the strip carrier and its supporting frame; 7 Fig. 4 illustrates the trip carrier and the parts associated "therewith for controlling the operation of the strip supplying means; Fig. 5 is a plan view of the parts shown in Fig; 4;; c y

Fig. 6 is a View in cross-section of the clutch connections between the strip carrier.

and the strip'supplyilig means showing the ns; i

Fig. 7 is an exploded view of such clutch Fig. 8 is a detail view showing, in side elevation, the dog which operates the clutch mechanism; and

y 9 is a sinnlar detail view, of the levers constituting the shifter mechanism for the dog.

The illustrated machine comprises afrarne 2 upon which is mounted. ahead 4 carrying 'mechanism for operating on a nail strip which, as shown,,includescutters 6"and18 moved.downwardly by ajcam shaft 10 past the edge of a stationary anvil 12. A stop l4= mounted toniove with the cutter 6 determeans tor mounting the trame 1 52 in the yoke :l'l comprises studs 28 secured in the yoke by set screws 30 and termed with cone-shaped recesses in their ends adapted to receive the cone-shapcd ends ol a rod 3i passing through the hub of the lrame .52. The lramc B2 is slidingly ad ustable on the rod 3i. and may be maintained in any desired position ol adjustment thereon by a set screw.

The strip carrier 16 is disposed obliquely ol the edge oi. the anvil l2 to the end that the strip may be caused to project lurther at one of its edges trom the anvil than at its other edge so that the blank severed from the strip will taper from one end to the other. It is, of course, necessary to change the relation of the strip to the anvil in order that the blanks severed from the strip subsequently to the llrst one shall also be tapered. Tl s may be elt'ected in various ways but, in the illustrated constructioi'i, the carrier 16 is rotated through an angle of 150 between consecutive operations ol the cutters ti and s to present the strip in alternately reversed relations to the cutters by a sprocket chain 32 passing over a sprocket wheel on the carrier 16 and driven from a shaft ac journalcd in the frame 2 ot the machine and carrying an eccentric gear 38 meshing with a like gear on a shaft 40 driven by a chain from the cam shalt ll). A. link l3 connected to the lrame is operated fromthe shalfttlti to rock the carrier 16 about the fulcrum studs 28 to elevate the carrier and thereby to permit the carrier to be rotated without interference of the strip with the anvil 12. The arrangement of the eccentric gears is such as to rotate the carrier at relatively slow speed when the strip is lowered on the anvil 12 to facilitate the operation of the cutters 6 and 8 on the strip. The :lramc 26 may be adjusted laterally of the head lso as to vary the degree of taper of the nail blank severed from the strip. As shown, the frame is joined to the head a by links ist and is provided at its rear end with a tongue slidable in a groove 45 in the upper end of a supporting standard d6. The groove 4-5 is curved substantially concentrically with the point of operation of the cutters t3 and 8 on the strip, and the frame 26 may be adjusted and clamped in said groove inany suitable manner.

The nail strips are fed through the strip carrier 16 by rolls l8 journaled in the casting 17 and rotated intermittently to ted the strip by pawls 49, which are in turn actuated by a stud 50 with which they are moved into engagement by the rotation of the strip carrier. (Figs. 2 and 3) pivoted in the l 'ame 22 and coacting with an adjustable stop in the term of a set screw or the like 523 to determine variably the extent ol the strip feeding movements of the rolls as. The pawls -l.) are moved in the reverse direction by a spring 5d (Fig. 3) preparatory to a subsequent feeding movement. The arm is maintained in the position determined by the stop )3 by a spring 58 (Fig. l) coiled about the fulcrum of the arm and extended rearwardly ol the :tramc22 and adapted to engage one of a series ol notches (not shown) on the under surlace of the hub of the trame whereby the tension ot the spring may be adjusted.

Preferably, and in the illustrated coie struction, the nail strips are supplied. one by one to the strip carrier 16 i'rom a turret (5U comp 'ising a plurality of magazines U25 each constructed to receive a single strip. The magazines 62 are disposed parallel. to and concentrically oi the axis of the turret which is rotated step by step to aline the strips in the magazines successively with the carrier 16 by a Geneva movement designated gener ally by the numeral 63, Fig. 2-3, which .IS operated. by a sprocket chain 64: passing over a sprocket wheel (55, the hub of which is mounted loosely on a tubular extension res ol the strip carrier 16 and is adapted to be clutched thereto when it is desired to supply a strip to the carrier. The sprocket chain (51 drives to a shaft (36 upon which the driv ing member ot the Geneva movement 25 is mounted and which is extended rearwardly of the turret (30 to actuate mechanism for transferring the strips from the magazines 62 to the carrier lti. This transferring mechanism is completely described and claimed in applicant's divisional application referred to above. In order to understand the operation of the controlling mechanism claimed herein it only necessary to note that when the sprocket wheel (55 is rotated through one revolution, the turret U0 is moved forward far enough to carry one of two adjacent magazines as out of and another into alincmcnt with the strip car rier 16 and the transferring mechanism is actuated to transfer the strip in the second magazine to the carrier is.

Other features of the machine hereinbclore referred to are fully described in the above-mentioned prior Letters Patent, and a more detailed description of such parts ot the machine in this application is believed to be unnecessary to a lull understanding ol? the present invention.

In accordance with the invention, the sup- The stud 50 is carried by an arm 52 lUU ply of fresh strips". to the-carrier 16 is eilected trolled by a strip in the carrier and adapted toactuate controlling means for the clutch connections between the sprocket wheel 65 and the carrier 16. As shown, such connections comprise an enlarged portion 82 on the hub of the sprocket wheel 65 in which is provided a recess 84 to receive a pin 86 having a finger 88 projecting transversely from its middle portion, the pin being flattened at one side ofsaid finger at 90. The fiattened portion of the pin 86 is disposed so as to intersect the path in which a. lug 92 on the sprocket wheel 81 moves.

7 The means fol-controlling the clutch connections between the carrier 16 and the sprocket wheel 65 comprises a dog 91 and a shifter for thedog which, as shown,includes a shaft 96 upon which the dog is loosely mounted and whioh'is' journaled in an extension 98 ofthe bearing of the frame 22.

The hub of the dog 94 is maintained normally againsta shouldered surface 100011 a wing 102lforming part of the extension 98 by a spring 108 attached at one of its ends to the wing 102 and at its other 'endto a lug 104; projecting rearwardly from the hub of the dog'9l. Mounted on one end of the shaft 113, see Fig. 6, received in a recess of the 96 is an arm 106 having a boss 108 at its lower end in which isseated a plunger 110 urged upwardly by a spring 112. A pin plunger 110 limits the upward movement of the] plunger. Notches 114 and 116 are formed in the lower surface of the dog 94 to receive the edgeof the plunger 110, said notches and spring-pressed plunger provid ing suitable means for movably connecting I .the dog '94 and the shifter to each other in either of tworelativepositions. The shifter further comprises a member 118 on the other end of the shaft 96Iformed with divaricate arm- s 120 and 122 eachhaving its end dis- I I p I The dog 9l'is'formed-witl1 an arm 124 underlying posed adjacent to the carrier 16.

the hub ofth'e sprocketwheel and disposed to be engaged by the enlarged portion 82 of said hub simultaneously with the engagement of the arm'106 by a'second cam portion 120.;on said wheel. i I i The shifter for thc'dog 9 1 is actuated by a feeler illustrated asa finger 128 fulcrumed at 130 on the carrier 16' and having one of its ends normally urged towards the path "of movement of the strips in the carrier by a spring 131 and tsother end 132 projected outwardly from the carrier.

The manner of operation of the mechanism'by which the supply of fresh strips to the carrier is initiated and controlled Will now be described. Assuming that the finger 128 is in engagement with a strip in the carrier 16, the pin er 110 will be engaged in the notch 116 of t e dog 9 1 which is held against the shoulder 100 of the wing 102 by the spring 103. When the rear end of the strip in the carrier moves past the finger 128, the finger isswung about its pivot 130 by the spring 131 to a posit-ion such that upon continued rotation of the carrier the end 132 of the finger impinges upon the end of the arm 120 and through the connection between the plungerllO and the dog 91 moves the dog from beneath the finger--88.

So long as the finger 88 is upheld by the dog V '94, the flattened portion of the pin 86 is so disposed relatively to the lug 92 that the lu" will pass by said pin during the rotations oi the gear 3 1 without engaging the pin. Upon the withdrawal of the dog 91 from beneath the finger 88, however, the pin 86 upon the force of gravity acting on the finger 88 is turned so as to dispose the flattened end of the pin across the path of movement of the lug 92, so that continued rotation of the gear wheel 31 will cause rotation of the wheel 65. V

If the gear wheel 65 were to be continuously rotated, a number of strips would be gear forced into the strip carrier which is designed to receive but one strip at a time.

The introduction of more than a single strip into the carrier upon the initiation of the operation of the strip supplying means is, in the operation of the illustrated construction, prevented by movement of the arm 106 outwardly by the cam 126 while the dog 94 I is withheld from movement by the action of the enlarged portion 82 of the wheel on the arm 12 1 of the dog. Such movement of the arm 106 carries the arm 120 away'froin the carrier 16 and enter the path of movement of the end 132 of the finger 128, the plunger 110 being at the same time moved from the notch 116 to the notch 114; While the plun er 110 engage'snotch 114 the dog '91 i-s held in such relation to the arm 106, and to the arm 120 which is rigidly connected thereto through shaft 96, that when cam portion 126 passes away from arm 106 arm 120 is held out of the path of movement of the end 132 .of finger 128, and this in spite of the fact that dog 91 is held by spring 103v in the path a of movement of finger 88. Thus looking'at V the parts from the direction in which they are viewed in Fig. 6, and assuming them to be with dog 91 held by spring 103 in the position there shown, when the plunger 110 is moved from the position there shown to the P n in which it engages notch 111,

that the dog 9i is returned into the path of movement ol' the linger tit; by the spring 103 immei'liately after the linger 128 passes out of contact with the end 0i the arm 120. Accordingly, when the gear wheel (55 has completed a single revolution, the linger 88 on the pin 86 will be again engaged it dog; 94, inasmuch as the arm it, is no longer in position to be actuated by the linger 12b, and will turn the pin to unclutch the gear wheel (55 from the gear wheel 3-ilVith this construction, only a single operation of the supplying means designed to supply a single strip to the carrier is eileeted whether a strip is actually supplied to the carrier or not.

hen a trash strip is introduced into the carrier, it pushes back the inner end or the finger 128, llhereliiy positioi'iing the end 132 of the linger so as to wipe upon the upper surface oi the arm 122. Since the dog, 9stabuts against the shoulder 100 of the wing 102 and is thus precluded trom lllOi' 'lllllQIl'b with the shifter, the "Wiping of the end 132 of the linger on the u. i moves the shifter relatively to the dog so as to carr the plunger ill] from the notch iii bat-l; into the notch 11:; thus resetting the clutch controlling means. This completes the cycle oi operations, the end of the linger be ing then maintained out of operative relationto the arm ltlll against the tension oi' the spring 123i by the ip until the rear end of the strip passes from engagement with the linger lit? alter which the linger will again actuate the arm lid to initiate the supply of another strip to the carrier.

Having :l'nllv lithljlllllftl my invention, what I claim as new and desire to secure by Letters Patent oi the United States is:--

1. Powcatransn i on mechanism coon prising disconncc .ble driving and driven clutch members tending norn'ially to remain in clutching relation, means normally eilective to unclntch said members, and means operated by the driving member at said clutch members to render said unclutchinr means inellective to maintain unclutehed relation of said clutch members and thereafter operated by the driving member to Ililll'lQl. said unclutehing means ell'eetive not ,ater than at the conclusion of a single revolution of said driven clutch member.

2. Power transni' ion mechanism conn prising, a. driving member, a driven member, means for controlling the operation of the driven member, means carried by the driving member for actuating the controlling means, and means movable by the driven member for altering the relation between the driving membe' and on the controlling,

means from a cooperative relation to a noncooperative relation. p

3. POWBL' tl'tlllSllllSSlOll Il'ICCllZUIISIH C0111- prismg, a driving member, a driven member,

controlling means for the driven member tending normally to disconnect the driven member from the driving member and constructed and arranged when actuated adversely to said tendency to permit a single cycle of operations of the driven member, means carried by the driving member for so actuating the controlling means, and means movable by the driven member for preventing recurrence of such actuation of the controlling means by the driving memher.

i. Power transmission mechanism comprising, a driving member, a driven member, means for controlling the operation of the driven member, means carried by the drivingmember for actuating the controlling means, and means movable with the driven member for moving the controlling means out of operative relationto the driving member.

Power transmission mechanism comprising, a r'lriving member, a driven member, means :lor controlling; the operation of the driven member comprisin a device normally operative to disconnect the driven member from the driving member, means carried by the driving member for moving said device out ot operative position, and means movable with the driven member forrendering the driving member inoperative on said device.

(3. Power transmission mechanism comprising, a driving member, a driven member, a device normallyoperative to disconnect the driven member from the driving member, means carried by the driving member for moving said device from operative position to cause the driven member to be connected with the drivinr; member, means for effecting reverse movement of said device again to disconnect the driven member from the driving member, and means movable with the driven member for rendering the driving member inoperative on said device.

T. Power transmission mechanism comprising, a driving member, a driven member, a device operative normally to disconnect-the driven member from the driving member, means carried by the driving member for moving said device to cause the driven member to be connected with the driving member, yielding means for effecting reverse movement oi. said device again to disconnect the driven member :l'rom the driving member, mechanism movable with the driven member for rendering the driving member inoperative on said device, and means for retainingi' said device against movement during the operation ol said mechanism.

8. Power transmission mechanism comprising, a drivingmember, a driven member, a device for controlling the operation of the driven member, yielding means for maintainingsaid device normally operative. to disand movable relatively thereto toward and from the driving membermeans on the driving memberfor actuating the shifter to movesaid device out of operativeposition, means movable with the driven member for moving said shifter out of operative relation to the actuating means, and means movable with the driven member foriretaining said device against movement during movement of the shifter.

9. Power transmission mechanism comprising, aldriving member, a driven member,

, adevice for controlling the operation of'the connect-"the driven member from the driving driven member, yielding means for maintaining said device normally operative to disconnect the driven member from the driving member, mechanism for transmitting motion 7 to said device movable relativel device, means movable with the driven memsaid device, and means for retaining the device against movement during operation of said moving means.

10; Power transmission ,mechanism comprising, a driving member, a drivenmember, a device'for controllingthe'operationof the a. driven member, yielding means for maintaining said device normally operative to dismember, a shifter movably connected to said device and comprising a part disposed adjacent to the driving member, means carried by said driving member and operable on said part when theshifter isin one position. relatively to said device to move said dBVlCGJOllt of 1operative position to causethe driven member to be connected with the driving member and a third part carried said shifterand operable bythe driving member to move said first-mentioned part back into ,operativerelation with the driving member.

11. Power transmission mechanism comprising, a driving member, a driven member,

a device for controlling the operation of the driven member, yielding meansfor maintaining said device normally operative to dis- 7 connect the driven member from the driving member, a shifter movably'connected to said device comprising a part disposed ad acent .to the driving member, an actuating member movably mounted on the driving member 7 bers, a clutch controllingdevice operative and operable on said part when in one posiposition to cause the driven meinberto be connected with the driving member, means operable on a second part of saidshifter for moving said first-mentioned part out of op'erative relation to the actuating member, and a third part carried by sa1d shifter and to said operableby thefactuating member when in another position "to. move said first-men tioned part back into operative relation to the driving member. i2. Power transmission prising, a driving member, a driven member, a device, for controlling the operation ofthe driven member, yielding means for maintaining said device normally operative to disconnect the driven member from thedriving member, a shifter for said device movable relatively to the device, connections between the shifter and said device constructed'toretain the shifter yieldingly in either oftwo positions relatively to said device, means carried by the driving member and operable on a part of said shifter .to move the device out of operative position, means operable on a second part 7 of said shifter to move said shifter from one position to another relatives ly tosaiddevice to carry the first mentioned part out of operative relation to the driving ber for moving said mechanism relatively to" and operable bythe driving member to efmember, and a third part on-said shifter feet reverse movement of the shifter and said device to redispose said first-mentioned part in operative relation to thev driving.

driven member, yielding means for maintaining said device normally operative to disconnect the drivenmember from the driving member, a shifter for said device movable relatively to the device, connections between the shifter and said device constructed to retain the shifteryieldingly in either of two positions relatively to said device, means carried by the driving member and operable on a part ofsaid shifter to move the device out of operative position,

means operable on a second part of said shifter to move said shifter from one position to another relatively to said device to carry the first-mentioned part out of opera tive relation to the driving member, means for retaining the device against movement during movement of the shifter, and a third part carried by said shifter and operable by the drivingmember tolefl'ect reverse movement of the shifter and said device to redispose said first-mentioned part relation to the driving member.

7 14a Power transmission mechanism com.- prising, a driving member, a driven member, clutch mechanism for'conne'cting saidmem- ,of operations when the clutch controlling device is actuated, means carried by the in operative driving member for actuating the clutch controlling device, and means movable with the driven member for rendering the driving member inoperative on the clutch controlling device.

15. Power transmission mechanisu'i co1uprising, a driving member, a driven member, clutch mechanism for connecting the driving member and the driven member, a clutch controlling device operative normally to disconnect the driven member from the driving member, a shifter forthe clutch controlling device movable relatively to said device, means carried by the driving member for moving the clutch controlling device out of operative position to cause operation of the driven member, and means movable with the driven member for effecting relative move ment of the shifter and said device to render the driving member inoperative on the shifter.

16. Power transmission mechanism comprising, a driving member, a driven member. clutch mechanism for connecting the driving member and the driven member, a clutch controlling device operative normally to disconnect the driven member from the driving member, a shifter for the clutch controlling device movable relatively to the clutch controlling device, means carried by the driving member for moving the clutch controlling device out of operative position to cause operation of the driven member, and cam mechanism movable with the driven member for effecting movement of the shifter relatively to the clutch controlling device to carry the shifter out of operative relation to the driving member.

17 Power transmission mechanism comprising, a driving member, a driven member, clutch mechanism for connecting the driving member and the driven member, a clutch controlling device operative normally to disconnect the driven mcmberfrom the driving member. a shifter for the clutch controlling device movable relatively to the clutch controlling device. means carried by the driving member and operable on the shifter to move the clutch cont-rolling device out of operative position to cause operation of the driven member. means movable with the driven member for rendering the driving member inoperative on said device and means carried by the shifter and operable by the driving member for rendering the driving member again operative on said device.

18. Mechanism for controlling the supply of blanks to a machine comprising a shifter having a pair of arms and a feeler arranged to occupy either one of two positions dependent upon the presence or absence of a blank, and operable in one of said two positions to engage one of the arms of the shifter and in the other position to engage the other arm oi the shifter.

respectively, a shifter having a pair of arms. one of which extends into the path of move ment of the :fceler in the presence of a blank, and the other of which extends into the path of movement of the feeler in the absence of a blank, and connections from the shifter to the clutch arranged to render the clutch operative to transmit power from the driving to the driven member to cause a single cycle of operation of the driven member when a blank passes out of engagement with the 'teeler. i

20. Mechanism for controlling the supply oi blanks to a machine comprising rotary driving and driven members, a feeler arranged to bc engaged and positioned by a blank and having two positions dependent upon the presence or absence of a blank, a

clutch having co-operating members oper-l atively connectcdto the driving and driven members respectively, clutch controlling means by orthrough which said feeler renders the clutch effective to operate in consequence of the passing of a blank out of contact with said tecler, and means for causing said controlling means to render the clutch inoperative at the conclusion of a single cycle of operation.

21. Mechanism for controlling the supply of blanks to the machine comprising rotary driving and driven members, means for controlling the operation of the driven member comprising a controlling member normally positioned to render the driven member inoperative, a shifter movably connected to said controlling member, means rotating with the driving member and operable on said shifter to move said controlling member from its normal position to cause transmission of power to the driven member, and means movable with the drivenmember for effective relative movement of said shifter and said controlling member to interrupt the transmission of power to the drivenmember.

22. Mechanism for controlling the operation of machine parts comprising a member positioned normally to render said machine parts inoperative, a shifter connected to said member and movable relatively thereto, a finger carried by a rotating part ofthe machine and operable on said shifter to move said member to a position to render said machine parts operative, and cam mechanism operatively connected to said machine parts for moving said shifter out of operative rela- Whether it is or is not engaged by a blank, tion to said machine parts. and means movable with the driven member 23. Mechanism for controlling the supply to cause the controlling means operatively of blanks to a machine comprising driving to disconnect the driving and drivenmem- 5' and driven members, a disconnectible selfbers When the driven member has moved 15 coupling clutch including means arranged to through a single cycle of operation. control the coupling and efiect uncoupling In testimony whereof I have signed my of the driving and driven members, a feeler name to this specification. arranged to contact With a blank and to actuate the controlling means according to GEORGE GODDU.

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