US1290651A - Lasting-machine. - Google Patents

Description

A. PERRI.

LASTING MACHINE. APPLIQATION FILED MAY 10. 1918.

1,290,651 Patented 'Jan. 7, 1919.

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A. PERRI.

LASTING MACHINE.

APPLICATION FILED, MAY I0. 1918.

Patented Jam 7, 1919.

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A. PERRIQ LASTING MACHINE.

APPLICATIAON FILED MAY 10. 1918.

Patented Jan. 7,1919.

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UNITED sTATEs rn'rnnr OFFICE.

ANGELO PERBI, OF GROVELANI), MASSACHUSETTS, ASSIGNOR TO REECE SHOE v MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

LASTING-MACHINE.

Patented an. 7, 1919.

Application filed May 10, 1918. Serial No. 233,685.

To all whom it may concern:

Be it known that I, ANGELO PERRI, a citizen of the United States, residing at Grove land, in the county of Essex and State of Massachusetts, have invented certain new upper into place about the wooden last and 15 secure the leather in place,-permanently or temporarily, preparatory to the subsequent steps in the manufacture of the shoe.

While some of the features of the present invention might be employed in a lasting machine intended to operate completely around the shoe, the specific machine herein illustrated as an embodiment of the present invention is designed more especially for lasting the sides or shanks of the shoe, after the more diflicult lasting operations at the ends have already been performed, for example, on machines such as shown in my prior Patents 1,168,963, of January 18, 1916, 1,222,125, 1,122,126 and 1,222,127 of April 10, 1917, and 1,260,034, of March 19, 1918. The toe-and heel mechanisms in said prior patents take care of both ends or tips of the shoe, and, although the shanks or sides might be lasted by hand while the shoe still remains in my prior machines, as stated therein, I prefer to supplement said machines by the machine of the present application, to which the shoe is tobe removed for the so-called side lasting operation. The art presents several examples of machines capable of lasting the sides of shoes, of which I mention expired patent of'Ladd No. 597 ,321, of January 11, 1898; but prior machines have never proved entirely satisfactory, and the main object of the present in-. vention is to afford a lasting machine of su' perior efficiency, convenience, simplicity and speed, worthy. of superseding mere hand implements.

The further objects and the advantages of th present invention, the elements or 1nstruments' involved, and their preferred mode of action, can be more readily ex plained during or after the following description, which in connection with theac companying drawings illustrates a convenient embodiment of the principles of the present invention. To the attainment of the several objects and advantages referredto, the presentinvention consists in the novel lasting machine, and the novel features of combination, construction, arrangement, action and detail herein shown or described, In the accompanying drawings, Figure 1 is a left side .elevation of the upper part or head of a lasting machine illustrating the present invention, it being understood that the same may be located at the top of the usual post or standard, at the foot of which maybe located pedals for controlling the driving and stopping mechanism andefl'ecting other control. Fig. 1 shows the parts in the stage of action at which the pincers have taken hold of a part of the edge of the leather upper, and are about to pull or stretch it into place around the bottom of the inverted last. Fig. 1 shows a structural detail. Fig. 2 is a view similar to Fig. 1, less complete in detail and showing the parts in that later stage of operation when the driver is about to drive a tack through the portion of the upper which has just been stretched and laid in place beneath the last. Fig. 3 is a front elevation showing the parts in the same position as in Fig. 1.

Figs. 4, 5 and 6 illustrate the details of the wiping and tack-carrying member, Fig. 4: being a top view, Fig. 5 a left elevation, andFig. 6 a front elevation.

Fig. 7 is a section on the plane 77 of Fig. 1, showing partly in top plan certain details of the connections. I

Figs. 8 and 9 illustrate the details of the tack separating mechanism, Fig. 8 being a top plan View, and Fig. 9 a front elevation,

' looking toward the side of Fig. 8

plying'tacks" thereto one "at a time, and a driver adapted to drive the successive tacks through the edge of the upper into the last; and the .machine .being power operated, there is a drive shaft which actuates cams or cranks, through which the different instruments are operated in a predetermined order: or harmony, through cycle after cycle,

until the power is disconnected by throwing off a clutch or the like. *F or feeding the shoethrough the machine as the upper is progressively pulled and "the tacks driven,

thejudgment of the operator may be relied on,'he holding the shoe in hand and advancing it withthe aid of a fixed guide in the,

' "machine. WViththis general outline the details "of the machine ma'y' bedescribed as follows: j

The'head casting 12 constitutes the framework of the movable parts to be described,

and it has an overhead extension 13. Other fixed and'frame parts will be described in 'hand, assisted by guide means consisting connection with the various mechanisms.

As the-operations on a shoe proceed, the

shoe is moved forwardly, for example, by

preferably of a rest or" guide 14, against which the side of the lastor upper bears, and a second shoe rest or guide 15, the shoe insole being heldup against this during operations.

Journaled in bearing 17, 17, provided in thehead casting, is the power shaft 18, extending-forwardly and "rearwardly, with a belt pulley 19"at its rear end,

1 F romthe power shaft are derived the several motions of the active instruments of the machine, 'theipin'cers, the wiper member, the tack driver and the tack feed. -While the"se operations might beperformed through shaft cranks and suitable connections, I prefer and herein illustrate a number of rotary cams, 21, 22, 23, and 24, mounted directly on the shaft'18.

Thepincers consist of the opposing-jaws '41 and 42, which in' this machine have three kinds of movements, first, clo sing and opening movements, second, a lifting or pulling movement, and the opposite orreturn, and,

third, a bodily movement with its carrier 'intoand away from operative position, it

being nec ssar'y for thepincers to be out of the'way at the time of the tackdriving action. 3

I will first describe the train of connections from the power shaft for closing and ope in g the pincers, which are shown closed in Frig. 1 andopen in Fig. 2. The cam 23 on the power shaft bears downwardly upon the stud'26'of a spring lifte'd cam lever 27,

which has an up and down movement. This lever 27transmits thedownward thrust of the-'cam to a lever 28. pulled upwardly by aspring 29. The rear end of 'the. lever 28, ser d d w w r ly ee e te l 3 engage a follower or stud 31, provided on a slide 32. This slide is movable forwardly and rearwardly in suitable guidewa-ys, which will be explained later, and near its forward end has swiveled to it ablock 33, through which slides the rear end of a rod 34,having adjusting nuts at its rear end, andsurrounded by a spring 36 pressing the rod forward. The front end of the rod 34 is connectedto'the'upward arm of a small bell crank lever 37, which is pivoted at 38,

while the rearwardly extending arm is pro vided with a stud 39, co-acting with the curved or cam-shapedupward extension 40 of the rear pincer jaw 41. When'the cam 23 throws down the levers 27 and 28, this throws upwardly the stud 39, which forces the rear pincer jaw forwardly against the front pincer jaw42, resisted by a spring 43, which subsequently opens the pincers.

.The pulling or stretching motion of the pincers in this machineis an upward swing.-,

pressed spring 50, surrounding the rod be-.

tweenthe block and the rods forward end, which is pivoted through a stud 5.1 to a fore and aft moving slide 52, directly abovethe slide 32, previously referred to. Extending forwardly again from the same pivot stud 51 is a second rod 53 connectingthe slide 52 withthe upper end of the carrier arm 54, already mentioned, which is pivoted at its lower end at 55, andhas the front pincer jaw '42 formed integrally with it. From this description it will be seen that the action of the cam 21 is to swing the pincer carrier arm 54 so as to put the pincers through their pulling and return movements.

'In orderthat the opening and. closing movements may be independent of the pullconstruction is employed. In describing the plncer closing connect ons, 1t was notiex- .plained' how lever 28 was supported. It will now appearthat this leverris fulcrumed to the slide 52, preferably by the same stud or pivot 51, which also engageswith the rods 7 I 115.- ng movements of'the p ncers, the following 48 and 53. Theitwo slides-32 and 52 are] 7 already explained, and-thetwo are guided for convenien e in mutual engagementpas" I 7 V 5 1n the r fore and aft movements byjsuitableg ,Iuideways'57 above theupper slide 52, and 58 below the lower slide 32; The result of this construction; is that, when the cam' ;21

acts to move the pincers bodily, the lever 45f posed fingers 73,

on the slide 71, and having their right or .5 and aft motion with relation to the roller stud of the lever 28 beneath it. I v In order to bodily shift the pincer mech} anism into and from position, the pincer carrier arm 54 is pivoted at 55 on a shifting lever 61, which in Figs. 1 and 2. is partly ful-- concealed behind the other parts, and is crumed at 62, where it has extending downwardly from the fulcrum point a short arm 63. In order to swing this arm 63, and

15. thereby the entire pincer mechanism between the operative position, Fig. 1, and the forward or retracted position, Fig. 2, the following connections from the cam 22 of the power shaft may be employed. The

cam 22 is engaged by follower arm 66, fulcrumed at 67, and having two downward extensions, the short one, 68, of which is connected by a forwardly extending crooked link 69 directly to the short downward arm 25 63 of the lever 61 before mentioned. By

these connections the cam 22 is capable of swinging the pincers between operative and inoperative position.

. I will now describe the instrument which 30, preferably serves both for positioning the successive tacks to be driven and for wiping or pressing the stretched work snugly over the bottom of the last in the act of moving inward to position the tack. This positioning and wiping member takes the form of a slide 71, seen in its retracted and advanced positions in Figs. 1 and 2, respectively, and shown separately in Figs. 1, 5 and 6. The wiper itself is shown as a thin, curved mem- 7 :10; her 72, secured at the bottom of the slide 71,

and centrally recessed at the pointwhere the tack is to be driven between the two sides of the wiper. A device for holding each tack is shown as comprising a pair of op- 7 3, mutually pivoted at 7 4 forward ends spe ially formed, each with a recess 75 of half-conical shape, so that the two fingers when closed together present a =Tconical recess adapted to receive and hold a tack, point downward, ready to be driven into the work, and yet held against the possibility of injuring the work until driven. The two fingers 73 are additionally recessed inear the pivot to cooperate witha central stop member 76, against which the two normally contact; and a pair of opposite side springs 77 bear with suitable pressure against the two fingers to hold them nor- BOITmally inthis position, yet permitting yielding as the tack is driven and as the slide is withdrawn from the shoe.

As shown in Fig. 1, thetack positioning and wiping member or slide 71 is mounted 65. in-a.slideway 79 on the frame orvhea'd 12'5" After the pincers have pulled each portion of the leather, it is the function of the slide 71 to move forwardly, causing the wiping and laying down of the leather over the last, and

holding the tack in position until driven;

the rear end of a stud 82, connected 'by a.

link 83 with a stud 85 on the slide 71. Turn buckle 84 adj ust-s the length of the link. The adjustableslot and stud 81, 82, and the adjustable link 83 permit variation of the extent of throw and, range of movement of theslide. 71, carrying the tack fingers and wiper.

The tack'driver is shown as a cylindrical pin 86, suitably held in the lower end of a cylindrical rod 87, movable up and down through upper and lower bearings 88, formed in a hollow frame or yoke 89. This yoke is rendered swingable, so that 'the driver may be positioned over the tack or swung to the right. out of position during the pulling and wiping actions. For this purpose theyoke 89 is'provided with trunnion bearings 90 at its front and rear sides,

formed on a fixed bracket 91 projeting forwardly from the frame for this purpose.

The'yoke 89 and driver 87 may be swung by the following connections from the power shaft 18. See Figs. 1, 2 and 7 The cam 22 actuates the follower arm 66, as already explained. The upper end of this oscillating arm is shown connected by a link 93 (adjustable to regulate the throw) to the leftward projecting arm 94: of'a bell crank lever,-

leftward into operative position over the tack. V

For causing the driver up and down movements, I prefer a spring acting in one dlIGCition, and, cam connections in the opposite direction. Preferably the connections actfto lift the driver and release it,'and the spring thereupon throws it down with accelerated force and momentum upon the tack. 7 The upper end of the driver rod 87 i is shown ras having a key connection 99 with the/upper 1 bearing 88, so aS'to prev nt the "dri ifmm' twisting. ,Above the upper bearing the driver isprovided with ahead, including aleather washers 100,'to take the;

Thereabove' a connect-'- I number of br'untof the impact; ing in..101- extends between thetiop of-the driver rod and the extremity of a springpressed arm 102. This arm is mounted on-a hub surrounding'a stud 103, secured in an upwardly extending frame bracket 104. A stout coil spring 105 surrounds the :stud 103, and is put under considerable tension, so-that a powerful pressure is constantly bearing down on the driver rod.

In order to lift the driver rod and at the proper instant suddenly release it-to descend and-impact upon each tack, the cam 24 is provided on the power shaft, as shownin Figs. 1 and 2, and in front view in Fig. 3. Looking at Fig. 3, the cam 24, which turns counter clockwise, is constructed with a-concentric surface followed by a recess, giving a sudden drop. Cooperating with :thecarn is a stud 107, secured'by acollar'lOS to the driver rod at approximately the height of the trunnion bearing 90 of'the driveryoke frame, so that this stud does not change its position when the driver mechanism swings. Fig. 3 shows that the axis of the'cam 24- is somewhat to the left 'of'its followerstud i107, and this in connection with the illustrated contour of cam, I find to give an exceedingly quick releasing and, dropping action of the driver, which immediately after the blow is again raised by the cam to its normal, inoperative position. By this arrangement the driver is caused to drop upona tack once in each shaft revolution or cycle.

In this machine a'single tack is dropped between the tack holding fingers -73into the conical recess 75 in each cycle of actions, that is, when the slide 71 has withdrawn rearwardly from the work, so thatson its next forward stroke it will carry a tackto the.position where it will be driven in the next. descent of the driver.

The tack supply is-maintained in a reservoir' 111, andfed therefrom in aseries down Fig. 8,- to assist in itsactuation. These parts a slotted chute 112. The structure of the reservoir and chute may be in accordance with well known devices alreadyused for this purpose. At the footof'the'chuteis a fixed block 113, having a-vertical hole 114, through which tacks may drop into the conical recess between the tack holding and-positioning fingers 73. See Figs. 1, 3, 8 and 9.

Within the lower end of the chute 112is a picker blade 115, and below this-a movable tack retainer or support-ingplate 116. The picker blade is so arranged that, when moved forwardly or into the chute,-it separatesithe second tack from the foremost one and confines or holds it back, and-the retainer isso arranged that, when moved away from: the chute, it. releases the foremost'tack to drop through the hole 114 to 'thetackpositioni-ng Inemberbeneath. The tack retainer may-be supported by a spring 117, bent, as shown'in may be operated a slide 11-8, ww hich di- 'rectly carries the .confiner or'picker blade and narrower mony with the other operations in the ma chine, a-lever' is shown having a slotted arm 120, connected to the shde 118, and a rearwardlyextending arm 121having a cam sur-- face 122, the lever beingpivoted at 123. Co-' operatingwith the cam 122 is a roller stud 124, which is mounted at the underside of the block 33, already mentioned in describing the pincer-closing connections. This block reciprocates forwardly and backwardly, and, as will be clear on Fig. 8, when the block and stud 124'move forwardly, this will per-' 1nit the lever 120'121 to swing, under the influence of a pusher 125- impelled by aspring 126, thereby thrusting the slide 118 forw-ardly, separating th foremost. tack, nd subsequently releasing-the tack to-drop into 7 the tack positioning member, while the lat ter stands in'its retracted position. The de scribed tack feeding devices have been made the subject of divisional No. 256122, filed September 28, 1 918.

The entire operation of themachinewill be understood from'the above description and from theillustrated timing of the-several cams. be as follows. Starting with the Fig. 1 position, in which the pince'rs are shown closed upon the edge of the leather or upper,

the closed pincers first swing upwardly with a pulling movement, stretching the leather at the point engaged. Overstrain and injury are prevented by the yielding of the spring 50, which is setto yield if a given limit of tension is exceeded. The tack positioning and-wiping member 71, having re ceived a tack, has started forwardly and now engages and presses the leather forward and down against the sole of the shoe.-

While this is occurring the pincers-open to release the leather, and the entire pincer mechanlsm swings bodily forwardly out'of the way of the wiper and driver.' The driver, which-in the meanwhile hasstood off to the righthand side, is nowr swung leftward directly in over the member ;71. .Fig.

2-shows this stage of operation. Now ,"thetack positioningmember having come to rest with the tack held in proper positionv between asixteenth andan eighth ofan' inch from the shoe edge, the driver is about to descend, being 'releas'ed by the turning of application, Serial Preferably the operation will the cam-.24to;thepointwhere its shoulder ceases to support the driver against the de-.

pressing force. of i the overhead spring 1105.

These operative actions are followed by the reverse actions, 'the'driver liftsandswings off to the right, the-operator moves the shoe along'iasuitable distance to a fresh point, the pincers; shiftf'bodily rearwardlyf, and

' many rap s a lasting machine embodying the principles and obtaining the advantages of the present invention, and other advantageswillbe ap parent to those skilledin the art.

matters of 'combination,'- arrangement,

-' design and detail may be variously modified pulling movements, a

without departing from the underlying principles, I do not intend to limit the 1n vention to such features except so far as set forth in th ap Cl What is claimed is:

".1'. A lasting machine including in combi nation,'a tack positioning instrument, a pulling'mechanism comprising a pincer-s having pulling movements, a: driver having driving and retracting movements, means for bodily shifting the pincers longitudinally to and from the work, and means for shifting the' driver laterally to and from its tack driving position relat'vely to the tack positioning instrument. .7 a. H

2. A lasting machine including in combination, a tack positioning instrument, a pulling mechanism comprising pincer-shaving driver having driving and retracting'movements, means for bodily shifting, the pincers forwardly after pulling and relcasing'the work, means for advancing the tack positioning instrument, and after the driving shifting it rearwardly from position, and means for shifting the driver laterally to and from its tack driving position relatively to the tack positioning instrument. 7

3. A lasting machine including in combination, a tack positioning mechanism, a pulling mechanism comprising a pincers having pulling movements, a driver having driving and lifting movements, and means for shifting the driver laterally to and from its tack driving position, comprising a frame in which the driver slides, and automatic connectiors to oscillate the frame about a fore and aft axis relatively to the tack positioning instrument.

4:. A lasting machine including in combi nation, a tack positioning mechanism, a pulling mechanism comprising a pincers having pulling movements, a driver having driving and lifting movements, and means for shifting the driver laterally to and from its tack driving position, comprising a frame in which the driver slides, and automatic con- "P o ubst ntia ly, t th evel nections to'oscillate the frame about a fore and aft axis, saidconnections 'includingf .an adjustment for altering the-throw, A lastingmachine including in combi natioma tack ositioning mechanism,a pull-1 70 ing mechanism compris ng a pincers' having pulling movements, means for bodily shrf ing the ,p incers longitudinally to and from t or a rive aving drums t n i f ing movements, and

driver laterally'to nd from its tackdriving position, comprising a laterallyswinging hollow yoke frame in'which the'driverfslides', andja 'deviceinterior of the hollow fram'e" engaging frame axis'of swingingfor causing driving' movements therefofJ f A lasting machine including in coinbi-" nation, tack positioning and driving means,

and apullingmechanism comprising a pin-'1 s5 cers having closing and opening movements, a pincers' carrier swingable upwardlyf about; a pivot substantiallyflat the pincer level for thefp'ullingmovements, andfa shifting support for 'such' carrier pivot by which the T pulling mechanism may. be bodily s'hiftedffrom'and tofo'perative position? 7. A lasting machine including in combi nation, tack pqsitio ing'and driving ineans,

and pulling mechanism oniprising 'a f pincers having closing and'jo enmg' move meme.- a pincers carrier swingable about a an o ward of the pincer jaws for bringing about the pulling movements, pulling mechanism may be bodily shifted from and to operative position.

8. A lasting machine including in combination, tack positioning and driving means,

and a pulling mechanism comprising a pincers having closing and opening movements, a pincers carrier swingable about a pivot approximately at the level of the piucers for the pulling movements. and a shifting support for such carrier and the pulling mechanism may be bodily shifted from and to operative position. said carrier and support being pivoted together near their lower ends.- said support being fulcrumed near its upper end and said carrier having an upward extension and means for actuating said extension to give pulling movements to the carrier.

9. A lasting machine including in combination. tack positioning and driving means,

and a pulling mechanismcomprising a pincers having closing and o en g mo emeuts, a pmcers carrier swmoablevfor the pulling movements. and a shifting support for such carrier by which the pulling mechanism may be bodily shifted from and to operative position, sa d carrier and support being pivoted together near their lower ends, said support being fulcrumed near its upper end, and said carrier being actuable 13o 'meansifor shifting 'the 75 i the driven substantially atfl'the so and means by which the 100" ivot bv' which 110 by a connection to its upper end near the fulcrum of said support. Y Y

10'. A lasting machine including in combination, tack positioning and driving means, anda pulling mechanism comprising a pincers having closing and opening movements,

a :pincers carrier swingable for. the pulling movements, a pincer closing member mounted on the carrier, consisting of a, bellcrank lever, a cam between, said lever and pincer,

tifo'nsfrom the first slide for giving pulling andretnnn movements to,t;'l'1 epincer s,,.a cam for oscillating the second sl1de,,the connecti'onsv for oscillating the. second, slide being mo nted on. the, first slide wherebythe. SQC? 0nd ol-ride pantalces or" the, oscillation of, the

i s i e, d; connections. f om the secondslides fo c osing and opening the; pincersi 2 A l stihg iachine including-incommnation, a tack positioner, atack driver, a work pulling pincerfs compris ng tWo. aws,

av p n er r ier ha ing, ne jaw rigid with it andthe other pivoted. thereto, a. cam extension of the'pivoted jaw, a cam stud movably mounted on the carrier, and means for operating the cam stud and the carrier to'.

close. the jaws and pull.

13. A lasting machine including incomhination, a Work pulling pincers, a tack driver, and a tack posltloner comprlsing'a retract= ablev finger carrier, and a pair. ofrigld piv oted fingers thereon, a single pivot stud for ,v

pin When the fingers. are in normal contactresilient I means ing position, and separate unattached to said, fingersbut pressing oppositely upon the same to hold them to said stop pin,

14. A lasting machine including in combi nation, a Work pulling pincers, a tack driver, a tack feeding chute, a perforated block at the chute terminus, a tack positionercomprising a retractable finger carrier, connections for reciprocating saidfinger; carrier between a point. beneath said. perforated block and; tack driving position, and means for adjusting said coimections to. adjust the. retract'ed carrier position and its thIlQW;

In testimony whereof, I have afiixed my signatureiheretioi s ANGELO PERRI.

Gop ies'oZ this patentmaj be obtaine d ifo r five cents each, by addressing the Commissioner, of Patents,

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