US880401A - Lasting-machine. - Google Patents

Description

No. 880,401. PATENTED FEB. 25, 1908. G. P. PYM.

LASTING MACHINE.

APPLICATION FILED JUNE 11.1902.

3 SHBET8-SHEET 1.

WITNESSES t Z INVENTOR 1%M 0 4x44! 476 2 5W 6 (PM/w M Attorneys.

U P PYM LASTING MACHINE.

APPLICATION FILED JUNE 11.1902.

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INV NTOK Attorneys.

0. F. PYM. LASTING MACHINE.

APPLICATION FILED JUNE 11,1902.

8 SHEETS-SHEET 3.

WITNESSES INVENTOR A I of 6 Z 07f By pm WW0"; Attorneys.

PATENTED FEB. 25, 1908.

UNITED STATES PATENT OFFICE.

CHARLES F. PYM, OF ESSEX, ONTARIO, CANADA, ASSIGNOR OF ONE-HALF TO KRENTLER BROTHERS COMPANY, OF DETROIT, MICHIGAN. I

LASTING-MAGHINE.

Specification of Letters Patent.

Patented Feb. 25,1068.

Application filed June 11. 1902. Serial No. 111-116.

To all whom it may concern:

Be it known that I, CHARLES F. PYM, a subject of the King of Great Britain, residing at Essex, county of Essex, Province of Ontario, Canada, have invented a certain new and useful Improvement in'Lasting-Machines, and declare the followi to be a full, clear, and exact descriptiono the same, such as will enable others skilledin the art towhich it pertains to make and use the same, refer ence being had to the accompanying drawings, which form a part of this specification.

This invention relates to lasting machines for shoes, and it has for its object improvements which relate to the lasting of the heel and toe, or arranging of the leather over the last and over the insole, preparatory to the driving of the nail, and to the driving of nails through the leather in its arranged position.

In the drawings :-Figure 1, is a front elevation, that is, an elevation of the machine as seen by one standing in the position of the 0 erator at Work with it. Fig. 2, is a side e evation, as seen by one standing at the lefthand of the operator. F i 3, is a erspective as seen from a point Fetween the front and the left-hand side.' Fig. 4, is a perspective, seen from the left side, of the finger used to arrange the leather. Fig. 5, is a perspective, seen from the right side, of the same finger. Fig. 6, is a longitudinal section of the same finger. Figs. 7, 8 and 9, are details of the shift device in the nailer.

The finger detailed in Figs. 4, 5 and 6, pushes the leather over, and down, and presses it upon the support that is held on the jack, and which comprises the last, and the insole over the last. This finger, which is the important feature of the machine, is in rapid vibration when the machine is in use, vibrating so rapidly, that the leather which has been pushed over by it, is again engaged by it, after a back stroke, before the leather can right itself, and while the finger does not stop to hold the leather against the last under pressure, its effective action is similar to that of pressure, but is modified by its vibrating action, by Which it constantly pushes the leather inward toward the central point of the last, thus in effect producing a pushing and pressing action, and at the same time tending to crimp or crease the leather in radial lines from the center of the last, or from the center of the curvature of the last around which the leather is being folded, and its rapid vibratory motion tends to cause these creases to assume a condition of uniformity on such radial lines. As the Work progresses, and the leather is folded and crimped around the curved last, the nailing "part of the machine is actuated from time to A time, and at the proper times, and a nail is driven through the leather and through the insole, clenched by being driven against the last, (which is either of metal, or faced with metal, if the nail is to be clenched, but if as sometimes happens, the nail is to bepulled, a wooden last may be used), and the finished work issmooth and regular. B finished work, here, is not meant a com lete yfinis'hed shoe, but the work finished so ar as this part of the construction of the shoe is concerned, in reality, the finished shoe is even and regular to a greater extent than a shoe which is silpiilarly crimped and fastened by hand wor A indicates the pillar upon the summit of i which, the crimpm is mounted. The Base B mounted onthe top of pillar A, sustains a bearing frame C, in which are journaled most of the operative parts of the machine, which are, however, actuated by driving shafts D and E, whose bearings are supported on posts F and'G, that are bolted or otherwise secured tothe base B. The post F sustains the main driving shaft D, which is provided With a belt wheel 3, to which is connected a belt from any convenient source of power. On the same shaft D is a spur gear that meshes with a spurgear 5 on counter shaft E. The counter shaft E carries an eccentric 7,around which engages an eccentric trap 8 that actuates the arm 9 of the crimping finger 10.

The arm Q is supported at its rear end by its engagement with 'the eccentric shaft; it is supported intermediate its rear and its front ends, b a swinging hanger 9 that swings from a ed hanger 9 that is itself secured to the support C.

At each side of the arm 9 is an adjustable bar 11, held adjustably by bolts to the'support C, the bolts passing through slotsto enable it to be adjusted. These arms 11 are 105 I provided at the front end with pivotally supported bearing plates 11, against which the workman pushes the shoe. These bearing plates 11 are preferably separated sufficiently topermit them to come, against the 110 and nailing machinery sides ofthe counter when this portion of the shoe is brought into engagement with them,

said arrangement being especially serviceable in connection with heel-seating, as it permits a free and firm movement and support to the shoe. The crimping finger or pressure delivering and blow delivering mechanism operate between these plates, reciprocating outward beyond them *and back again, and the crimping fingerisin a plane above the bottom portions of theseplates, so as to permit the latter tobe used in the manner above described. At the front end of the crimping arm is a crimping 'fin'ger, the action and o eration of which will be best.understood y referring to ;Figs. 4, 5

p and 6, which engages the work at theedgeline of the bottom of the last and remalns hard pressed upon the work until the finger reaches or passes the tacking line. The arm 9 atits, front end has substantially a vibratory back and forth motion; it has a-slight "vertical oscillation, because the support is not exactly at the front end; during t e revoflution of t e shaft E the front end of the arm travels in an elliptical orbit whose diameter is determined by the throw of the eccentric:

. and the relative lengthof the parts of the arm on each sideof the hanger. The motion of the front end of the arm is supplemented by an independent motion of the finger, which is due to the resistance that the finger encounters, and to the strength ofthe spring 9 that is secured to the under side of the arm 9, and the free end of which lies to the front.

' At the front end of the arm 9 is pivotally secured onlpin 12 'af1n' er 12, the rearpart of which fprovided wit engages'ever a, pin 12, which pin 12 extends a 40 front end an oval slot 12 that from the ai rn l) through the oval sloth The of the fork; the yielding finger throug the prongs of which the nozzle of the tacker en- (giages enables me to drive the nail completely own, or by adjustment the-nail'may stop .before being driven completely-down.

.front end 10 of the finger 12 and the spur upward tension is produced by aleaf spring 9 that is secured to the arm 9 and extends forward under the finger 12. The compound structure, thus produced, tends to closethe togethenbut gives to each part a-facility to yield when an obstruction is met with, in the forward stroke of the arm 9 and the annular relation of the pressure-delivering parts 10,

the c ii f thefinger is forked to enable the nail to be driven-between the pron s 10.

10 and arrangement of their springs12", 9, causes the pressure or resistance of each of said parts10, -10", to'modify or increase the pressure of the other. The arm is re ciprocated rapidly by the shaft E and its eccentric connection therewith, and itis used to press forward and downward and crimp the leather properly, preparatoryto driving a nail and at the same time that the finger is pressing the leather forward over the last and downward upon it, the spur 10 acts somewhat likethe hammer of a hand workman to strike against the leather at the side and edge. of the last, engage and hold. ittightly against the last, and in doing this it comes into engagement and action before the finger' 10 has completed its full forward stroke, and remains in engagement duringall the remainder of the forward stroke of the finger 10, and during part of its retreat and simulates the action of a workman using a hammerin crimping a shoe.

vertical plun er 14, driven or forced downward ositive y by a spring'141 from which it is li ted by a bent lever 15 that is pivotally.

secured to the top of the support C,'and pivotally connected with rov'ision for lost motion to the stem 14 of t e hammer. .The

end 15, of the bent lever 15 en ages with a Thehammer which drives the nail, is a cain2on the-shaft D, andma es a'stroke" to lift the hammer with each revolution of the shaft 1), 'rovided, the shaft D has been clutched to t e pulley wheel 3. This clutch engagement between the (pulley wheel 3 and by actuatin the treadle 3 which is linked to a clutch ever utch 3 is produce 3 all theparts being properly supported bf tlfe main framework. Normall and whi e not in clutch, thepulley 3 and t e spur gear 4, which are both on the same]sleeve," run'-- loose on the shaft-D and transmit motion to;

the shaft E without actuatin the shaft D; The spur wheel 5, is loose on t e shaft E but is clutched thereto by clutch 6 arranged to be held in. engagement normally, by any proper holding means, but to be thrown out of engagement when desired. This permits the independentoperation at will of the tacking means and the crimping and'pr'essing means;

at all, while yet driving tacks an may be reeinired.

he nails are fed under the hainmer and into the nozzle 14" from either one of. two.

receptacles 16 or 16", as ma be desired the two receptacles holding nails of difierent sizes. The means of deliverin nails from the receptacles 16 and 16 into t echutes 17 This enables the operator torub the leather little or much, or, ifdesir'ed, not

and 17 a is well known and forms no part of the present invention. I'have, however, placed two of these'nail receptacles on the .machine, in place of the one ordinarily used,

and have brought two nail chutes to feed into the nail noazle-14 andhave arranged a switch by'which the wo'rkmanmay select the size or style of nail he desires to use.. The switch on arm 17 b is arranged to bring either of the nail chutesinto action, and the other nail chute out of action;

In connection with the nailing device,

there are a pair of shift fingers 40 and 41,

supported'on a reciprocating arm 17*; the fingers are pivotally engaged to a cross bar 43, which is itself. pivoted to the arm 17*;

--the cross bar 43 is provided with a lever handle 44 by means of which it can be turned on its pivot 45; shifting the lever handle 44, retracts one of the fingers 40 and projects'the other, and in its. ro ected position, the finger 40 engages t ough a hole in the nail chute 17*, in the pathof the ad vancing nails and prevents. the nails from advancing along the path to the spout 14". At the time the-finger 40 is advanced, the

finger 41-is retracted and the nail chute in the race .17 is open; by shifting the handle 44, and retracting the finger 40 and projecting the finger 41, the nail chute 17 is closed and the nail chute 17 is opened. Both the fingers 40 and 41 are reciprocated by the arm 17*, .but one of them is advanced so far through the chute'that it does not act as an isolating finger, and the other is retracted to proper osition to so act.

The jac which is used to hold the shoe in position-to be treated by the crimping finger, and by the hammer, is capable of a wide range, practicall a universal range,

of adjustment with reference to the crim ing and nailing mechanism described; t e

head 25, of the jack supports two posts 29, 30, one of which 30, su ports the head of the last, and the other 29 has an adjustable terminal 32, which supports the toe of the last.

What I claim is I 1. In a lasting machine, means constructed and arranged to necessarilyengage the upper at the edge of the last and to push the upper forward over the edge of the last I when the shoe is in proper lasting position with relation to the machine, and automatic mechanism for rapidly reciprocating said pushing ineans forwardly over the edge of the last and-inwardly from saidedge, with a 'speed'causing said pushing movements to follow each other-in suchiquick succession that the leather ,is prevented from recovering itself and is gradually pulled and pushed to fully lasted position in a succession of stretching increments, said mechanism in cluding means to maintain .sai'd pushing means in sliding contact with the upper from the extreineedge o'fthe last to the end of the inward movement and out of contact with the ii per u on the backward movement.

2. n a asting machine, tack driving mechanism combined with automatic reciprocatory, pushing mechanism constructed and arranged to'deliver a rapid series of vibratory pushing movements in contact with the upper at and over the edge of the last, said mechanism including means to deliver said pushing movements in such quick succession that the leather is prevented from fully recovering itself and is gradually pulled .andpushed to fully lasted position in a suc-' cession of stretching increments, said pushing mechanism including means arranged to maintain the same hard pressure against the upper at the edge ofthe last and thence inward therefrom to the tacking line in all of its forward leather-stretching movements and substantially out of contact with'the upper in its return or backward movement.

3. In a lasting machine,'a workrest for positively and firmly supporting and controling the vertical position of a lasted shoe,

..means for pushing the upper of said shoe forward over the edge of the last, and automatic mechanism constructed and arranged to vibrate said pushing means with a rapid series of back-and-forth movements-following each other in such quick succession that the leather is prevented. from recovering itself and is gradually pulled and pushed to full lasted 'osition in a successionv of ro- P s P gressive stretching increments, said-mechanism including means to shift, said pushing.

means above the 'leveliof said workrest during the backward movement, for causing said pushing means to'remain suhstantiallyout of contact with the upper during the backward movement, and n sliding contact with 'the upper during the forward movement, said mechanism including means constructed and.

arranged to maintain said Epushing means in pressing engagement with the upper from approximately the edge of the last to the tacking line, and to maintain the forward movement thereof for-said distance in the plane ofitheupper at the bottom of the last) said workrest being arranged in position, to

engage the last and upperclose to said pushing means whenthe upperis engaged by the' pushing means.

4. In a lasting machine, tack drivingv sliding contact with the upper from the extreme edge of the last throughout said entire distance forward, and out of contact with the upper upon the backward movement, constructed and arranged to permit a plurality of reciprocations of the pushing means for a single operation of the tack driving mechamsm.

5. In a lasting machine, the combination of pressure-delivering and blow-delivering mechanism constructed and arranged to de-' liver a rapid series of forward pushing pressures adjacent the upper-edge to be tacked and a series of leather-stretching blows on the upper to aid in the stretching of the leather.

6. In a lasting machine, the combination of pressure-delivering and blow-delivering mechanism constructed and arranged to deliver a rapid series of forward pushing pressures adjacent the upper-edge to be, tacked, and a simultaneous rapid series -of leatherstretching blows on the upper at the side of the last immediately behind and following said pushing pressure.

7. In a lasting machine, tack driving mechanism, combined with upper-stretching mechanism located close to and cooperating with the tack-driving mechanism to position and hold the upper for tacking, consisting solely of yielding reciprocating means con.

structed and arranged to engage the outer surface of the upper back from itsfree edge and to maintain pushing contact with the leather from approximately the edge of the last to the tacking line, and constructed and arranged to permlt aplurality of rapid reciprocations of said upper-stretching means for a single operation 0 the tack-driving mechanlsm.

8. In a lasting machine, tack driving mechanism, combined with upper-stretching mechanism located close to and cooperating with the tack-driving mechanism to position the upper for tacking, consisting of automatic mechanism constructed andzarrangedjto deliver a.rapid series of separate and distinct forward yielding rubs, and to maintain sliding engagement against the leather from adjacent the edge of the last to substantially thetacking line previous tothe operation of said tack-driving mechanism.

9. In ""a lastlng maclne, tack-driving .mechanism, combined with upper-stretching and blow-delivering mechanism constructed and arrangedto deliver a rapid series of forward rubs against, the leather adjacent the free for wiping the upper forward over the edge of the last, automatically operating. means for mparting a rapid four-motion movement thereto, means for maintalnmg said crimping means hard-pressed yieldingly upon theupperin its forward movement, said mech-, anlsm including means for operating said crimping means with a speed causing sald forward wiping movements to follow each other in such quick succession that the leather .is prevented from recovering itself and is gradually worked'forward to lly lasted position in .asuccession of stretching increments, and a pressing devicefor engaging and holding the upper as the crim ing means rises therefrom and, begins its h ment.

' 11. In a lasting machine, two' yielding pressing devices, having yielding connection with each other to modify each others pressure, constructed .and arranged to respectively engage the upper at the side and at the bottom of the last at the point being lasted, and means for simultaneously-imparting to said two-devices a forward wiping or rubbing movement.

, 12. In a lastin vmachine, two yielding pressing devices or respectively enga ing the upper at the side and at the bottom 0 the last, and means for simultaneously moving said two devices one behind the other in the same general direction in a curved path transversely to the tacking line of the upper.

drivin mechanism.

14. In a lasting. machine, two pressing devices for respectively"engaging1 the upper at the side and at the bottom of t e last, and means for simultaneously imparting to said two devices a forward movement, and for continuing said movement with the side device after the bottom device has ceased its said movement.

15. In a lasting machine, two pressing wiping or rubbing ackward moveand rubbing devices for respectively engaging the upper at'the side and' at the bottom of the last, springs permitting said devices to yield at rig t angles to each other, and

means for simultaneously moving said two devices forward transversely I to v the periph eral edge of the last in sliding contact with the upper, said springs cooperating with said -mov1ng means to permit said two devices to follow the curvature of the last in their respective engagements, wiping or rubbing the leather up over the edge of the last and ttretching it inward over the bottom of the ast. I

16. In a lasting machine, means for crim ing and pressing the upper over the last, tac ing means, a common actuator for said two means, and clutching mechanism under the ee-aaci.

control of the operator permitting the in dependent operation at will .of either of said two means.

17. In a lasting machine, a manually controlled stationary tacker, fixed rigid bearing devices for engaging the last, One at each side of said tacker, independent at their forward en'ds, leaving an unobstructed interval between them, and continuously and rapidly vibrating, crimping and rubbing means operating in a direction transverse to the edge of the upper out and in between said bearing devices and cooperating with the aforesaid mechanism for stretching the upper over the last in position tobe tacked.

18. In a lasting machine, separate smooth bearing devices to rest the top side of the work against, a tacker, and upper-rubbing mechanism constructed and arranged to operate on the upper approximately in and a ove planes of the under sides and front ends of said two bearing surfaces and located to operate between said.bearing devices, the latter being arranged to control the position of the work, during said rub bing, to meet the requirements of the tacker.

19. In a lasting machine, a tacker, operable at will, a reciprocating high speed crimper mechanism having an edge-stretcher, constructed and arranged to rapidly engage and rub upwardly on the leather at the side of the last, and bearing devices located apart and both in.one and the same horizontal plane for permitting a free sliding movement of the'work as it' is held against said rapidly reciprocating edge -stretcher and at the same time maintaining the work in-proper position.

20. In a lasting machine, a reciprocating high-speed crimper mechanism having an edge stretcher constructed and arranged to rapidly engage the leather adjacent the edge of the last and rub the upper forward, and bearing devices separated from each other at their forward ends, on the opposite sides of said reciprocating crimper mechanism, the latter moving forward beyond the free ends of said bearing devices and retreating to the rear thereof, said bearing devices being in the same horizontal plane, below the plane of crimping movement of said crimping device, and in position to engage at the opposite sides of the counter of the shoe.

21. In a lasting machine, in combination with a vibrating arm, a finge'r'pivoted to said arm, a spring arranged on the arm and bearing against the finger, a s ur pivoted to the finger, and a spring carrie by the finger and arranged to bear against the spur.

22. In a lasting machine, in combination with a supporting frame, a vibratory arm supported by said frame, means for producing vibrations of the arm, a yielding finger terminating. the arm, and ayieldingspur ad jacent to the finger, the finger being arranged to engage over the work under treatment, arranged to engage at. the

a said frame, mechanism for actuating the nail driver, a vibratory arm, a forked finger pivoted to the'arm and arranged to engage the nozzle of the nailer with a branch of the fork at either side thereof. I

24. In a lasting machine, in combination with the frame, a vibratory arm, means for vibratingsaid arm, a finger terminating the arm at its forward end, guide bars arranged at the sides of said'arm, and bearing plates at the forward ends of-said guide bars, arranged to engage the work under treatment.

25. In a lasting machine, the combination of reciprocally movable arm, means for actuating the same, a forked finger at the forward end of said arm, pivotally supported bearing plates at the sides ofsaid arm, and means for feeding nails .to a position between the branches of the finger and for driving said.

nails.

26. In a lasting machine, the combination of a reciprocatory arm provided with a pivoted finger at its forward end and with a pivoted spur, means for producing the reciprocation of the arm, a nail driving mechanism, and a rest for the shoe under treatment adjacent to the nail driving mechanism and arranged to guide the shoe.

27. In a lasting machine, the combination of a reciprocating crimping finger, a spur arranged to reciprocate with said fin er, the spur being pivotally attached to the fingen 28. In a lasting machine, the combination of a rapidly reciprocating crimping finger, a rapidly moving rubbing device extending downwardly from said crimping finger, a-

29. In a lasting machine, the combinationof a reciprocating crimping finger, a'- spur v pivoted thereto, a bearing plate adjacent to said finger, an a'djustable arm, a pivot connection between said arm and said plate,

means for driving nails, and means for actuating the nail driver and reciprocating finger contemporaneously.

30. In a lasting machine, intermittingly operating tack-driving mechanism, combined with a yieldingly supported reciprocating crimpin'g finger, constructed to yieldingly engage the leather upon a shoe last with an upward and forward over-reachin pressure and then move bodily forward wit relation to the last, maintaining engagement with the leather during all of said forward movement,

' ing positive motions with respect to the last and automatic means constructed and ar- 1 In testimony whereof, I, sign this specifiranged to impart to said yielding finger a cation in'the presence of two witnesses.

rapld series of upward and forward overreach a CHARLES F. PYM.

and the leather thereon with such s eed as to Witnesseszj stretch and maintain the loose leat er in po- LOTTA LEE HAYTON,

MAY E. KOTT.

sition f01 and during said tacking.

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