US881441A - Heel-seat laster. - Google Patents

Description

I IND-881,441. PATENTED MAR. 10, 1908.

, G. F. PYM.

HEEL SEAT LASTER. APPLICATION FILED AUG. 1, 1906.

2 SHEETS-SHEET 2.

1% 881,441. PATENTED 1 G. F. PYM. HEEL SEAT LASTER.

APPLICATION FILED AUG. 1, 1906.

' hand after the heel seatis lasted.

, Figs. 5 and are details to be referred'to} very loose.

- UNITED s'rArns PATENT OFFICE.

CHARLES F. PYM, OF ESSEX, ONTARIO, CANA DA, ASSIGNOR OF ONE-HALF TO KRENTLER BROTHERS COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

HEEL-SEAT L srnn.

Specification of Lette rs Patent.

' Patented March 10, 1908.

Application filed. August 1, 1906. Serial No. 328,689.

To all whom it may concern:

Be it known that I, CHARLES F. PYM, a. citizen of Canada, residing at Essex, in the Province of Ontario, Canada, have invented an Improvement in Heel-Seat Lasters, of which the following description, in connection with the: accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invent on 1s a larly intended for lasting heel seats.

The ordinary lasting machine. operates upon the principle of a straight thrust of-the wiper and depends upon the operators holding the shoe strongly against the wiper to last the heel seat, the wiper having one wipe to each tack, the latter being driven atthe forward end of the wiper when the wi er is at the forward end of its stroke. It

uently happens, in using said mechanism, t at the nozzle catches the leather or is pinched by the leather forced forward by 'the.

crimper mechanism, thereby damaging the leather and in some instances breaking or injuring the nozzle. Accordingly I have provided mechanism above results and also prevents the crowding and wrinkling of the leather about the coun-,

ter which often hap ens, especially when the shoes are sent to tlie seat making machine My invention also provides a yielding rest for the'purpose of ironing out the small wrinkles, especially in patent leather, which at present is accomplished by chine Fig. 2'is an enlarged detail thereof, arts being shown in section for clearness of,

illustration; Fig. 3 is a top plan view of the main crimper .or wiper I isa similar V1eWW1tll.\tl1B crlmper omitted;

lasting machine, which, drive pulley although capable of general use, is particu-:-

- being driven by a'lever 12 actuated bya cam. 13 fast on which prevents thev "counters.

. able the operator to gras and workrest; Fig.1

"fi kd g y y 9 Strong "movements of the arm Fig. 7 is a detail in front elevation of the nozzle and nozzle protector or supplemental wiper; and Figs. 8, 9 and 10 are details in end elevation, ongitudinal section'and-transe verse section of one form of clutch which may be'used in my machine.

On a suitable pedestal 1 I mount a casting orhead 2 which carries a drive shaft 3 and counter shaft 4, the former provided with a 5'and a-gear 6 fast together'on the shaft 3', see Fig. 9, adapted tobe conmechanism operated by a lever 7 and foot treadle not shown, ing provided with a'pinion8 in mesh-with sald gear 6. The upper part of the machine carries a 'tacking mechanism of any desired 'nected to the main shaft by any clutching and the counter shaft be kind, a magazine 9 operated by a usual ro ta-ry stirrer rod 10 being shown and the tacks by "a hammer rod .11 operated the drive shaft 3, said hammer-head o'perat- 231g in a nozzle 14 in the usual manner. It

be understood that I have herein. merely enumerated and shown enough of the parts of a tack driver to enablemy invention to be understood, the constructional details thereof of not forming a part of my invention.

Secured at 15 to thehead of the machine is a bracket 16 in which is adjustably secured at17 thest'em 18 of a workrest 19,

herein shown, see Fi 2, as a hollow rotary. support or roller wor est pivoted on a stud .20 in anjextensionpiece 21 adjustably-secured to the stem 18 at 22 by ,bolts and slots so that the angle of the rotary rest may be changed to suit'different contours ofheels or Secured to the part 21 is a handle or ip 23, which may be adjusted by'bolts mi slots 24 to suit the convenience of the workman. The purpose of this grip is "to enfingersof the hand 'whic -he is using to ma nipulate the shoe, so as to enable him to get a strong leverage-0r purchase-for pulling the shoe tight enables the workman beneath the seat.

to hold the shoe firmly The wiper consists of a wiping portion 25 pivoted at 26 toa reciprocating-arm 27 operat'edby an eccentric 28 on the counter shaft 4,- the wiping portion 25 being held down spring 29 and the 27 being controlled up against the rest 19. This the same with the wiper so as to get a finn, tight for;

- this arrangement is that I will presentlydescribe.

first place,

by links pivoted-at 31 to the wiper arm and at 32 to the bracket 16. The result of the wiping end of the wiper as an orbital movement, moving forward in a lower plane and returning in an upper plane, so that the wiper engages the leather and crushes it down and crimps it smoothly with a powerful downward and forward pressure, yielding upwardly according to'the requirements of the fold being made and the character of the leather. The crimping member 25 has two parts 33, 34, separated by a slot, see Figs. 3'and 7, for straddling the supplemental crimp'er and nozzle protector 35 so that the part 35 and the principal wiper can both operate upon the leather in the same plane. The part 25, however, is. relied upon for pushing forward and-laying over the leather, especially in the and thepart 35 supplements the same with an unyielding 'heavy pressure, which aids the main wiper in procuring a firmer and tighter heel seat' than can be made with a single wiper.

.The supplemental wiper has a bottom wiping surface'3 6 and a tack channel or guide way 37 and constitutes also. an auxiliary noz'-- zle, normally out of line however with the race-way of the main nozzle 14, as clearly shown in Figs. 1 and 2. It extends in the main casting or head of the machine as clearly shown in Figs; 1 and 2, and is provided with a pin 39 engaged by the slotted .end 40 of a link 41 operated by an eccentric 42 on the main shaft 3. The slot 40 pervmits the supplemental wiper or auxiliary nozzle 35 to have a dwell or period of rest while the tack is being driven. As will be observed, the relative sizes of the gears 6, 8 cause the main wiper to reciprocate rapidly, and I prefer that this movement should be continuous, whereas the movement of the main shaft is intermittent and subject to the control of the operator through the clutch mechanism shown in Figs. 8-10, and which.

will refer further to the workrest. In seat making it is essential that reat pressure shall be applied because of the eavy counter which has to be broken over and crimped and because of the fact that there are several thicknesses of leather and also because of the rapid curve and shape of the heel, so that, in fact, it has not heretofore been considered practicable to make a nailed heel seat by a machine. Because of this heavy'pressure and also as many shoes go to a seat making machine very loose, it results that the leather at the counter is fre u'ently crowded forward andwrinkled and injured by. the pressure brought to bear upon the same against the common strai ht or fixed rest, so that it has been difficu t to make a satisfactory seat in this respect. Accordingly to remedy 16 this feature I ave provided the rotary rest Before doing so 1' and for the further purpose of facilitating the work I have provided in the machine itself means for automatically ironing out such small wrinkles as may be present or may be formed, especially in patent leather, and for this purpose 'I take advantage of the yielding movement of the roller workrest by preferably applying a heating flame from a gas tip 43 at the end of a gas pipe 44, which maintains the rest suitably heated for automatically ironing out all small wrinkles and maintaining the patent leather in the very best condition for easy manipulation and convenient crimping. The heated condition of the workrest' not only accomplishes automatically the ironing work, which has hitherto been done by hand after the seat has been lasted, but it renders the patent leather pliable and facilitates the crimping and seat making process.

Patent leather is exceedingly difficult to work without injury as the enamel is frail and the leather backing liable to be tender or brittle, harsh or intractable, and besides, the difficulty of working it is increased by the rapid crimping movement at the heel where so much pressure and manipulation are required as explained above. Accordingly I soften and render pliable the leather at the point being crimp ed, and the ironing workrest 19 is so shaped that it fits flat against the counter portion of the shoe down along the side and up at the edge next the heel where the rand crease comes and where the crimping and crushing effects of the wipers begin, the top edge of the side ironer or rest 19 holding the leather smooth and preventing wrinkling at the bend of the leather over the heel edge of the last as the crimping and crushing of the counter and up )er take place under the rapid movements of the crimping mechanism, and the ironing movement of the heated rest 19 at the same time not only maintaining the leather'pliable, but, in cooperation with the simultaneous pushing and rubbing and stretching action of the wiper'25, serving to iron the leather down flat and perfectly smooth over the side and ed e as explained.

' Io facilitate the work, especially in connection with atent and enamel leather, I maintain the eather-contacting parts, 'i. 0., the rotary workrest and the wiper, automatically oiled, and for this purpose I mount at 45 the stem 46 of an oiling device which consists simply of a bent rod to which is secured at 47 an 48 pieces of felt saturated in oil, said pieces bein shown in Figs. 3 and 4 as clamped in place by small metal plates. These pieces of oil-soaked felt are in'position to rub constantly against the outer surface of the rotary rest 19 and the end surface of the wiper 25.. As the oiling is not desirable for some kinds of leather, I have provided means for readily shifting it out of position,

consisting of a spring-impelled plunger or hold 19, see Fig. 6, which bears against notches or dwells formed in the stem 46, as clearly shown in said Fig.5. If the operator does not need the oiling device he simply lowers the oiling device temporarily out of the way. 7 As already stated, the clutch mechanism forms no part of my present invention, as any clutch-may be used. The clutch shown in I detail in Figs 8,9and 10 consists of a flanged sleeve 50 having a recess 51 carrying a roll 52 partly occupyin .a-wedge-shaped recess 53 in the shaft 3, the 'atter also having a finger '54 engaged by a spring 55 in arecess' 56 of said sleeve. Said spring 55. is normally com pressed, so that when a dog 57 operated by the rod 7, is suddenly. released from engage-l ment with an ear 58 projecting froma flange of said sleeve 50, said spring gives a slight rotary movement to said sleeve, 'suflicient to carry the roll 52 into wedging engagement between the-shallow portion of the shaft recess 53 and the inner surface of the driving pulley 5, thereby causing said pulley to im-' part to the shaft 2 instant rotary movement.

The dog 57 is normally maintained in.engage-,

ment*-with the ear 58 so as to keep the main shaft locked against rotation by a spring59 secured to the rod 7 at one end and to the head of the machine at the other end.

, In use, the operator grasps the handle orgrip 23 and is thereby aided in holding the counter portion of the shoe hard against the rotary workrest, which is maintained. prop- ,erly heated 'by the gas flame, and properly oiled by the automatic oilers, and as he turns the shoe slowly around against the rotary workrest, the crimper 25 rapidly and forcibly breaks and crowds over the comparatively stiff projecting edge of the counter and upper, laying and crimpling, the same firmly, said crimps being furt er ironed down and held in crimper and nozzle 35 as the latter is reciprocated each time the. op- 'erator desires to have a tack driven. Inasmuch as the auxiliary crimper and nozzle 35 bears directly-on the leather with a smooth flat surface in line with themain crimper' 25 and also inasmuch as said auxiliary crimper slides back and forth on theileather atproper intervals, it .is impossible that the leather should become pinched or that the nozzle 'shopld become caught or wedged in any way. 55

There is no projecting point, as with the usual nozzles, to catch, the point of the nozzle be-- ing omitted and'replaced with the,- movable. ,auxiliary wiper 35. Also there is no possibility of a tack being droppedimproperly, inasmuch asthe delivery end 37 of the raceway is shifted out of alinementwith the rest .or' v the race-way excepting .at thos'el-times when a tack is actually being. driven. At

such times the operator depresses the foot treadle 'and through the rod- 7 and clutch mechanism the supplemental wiper and auxiliary nozzle 35 is reciprocated backward into alinement with the main nozzle. 14 and thereupon. the tack delivering mechanism and driving mechanism deliver and drive, a tack instantly in place while the auxiliary wiper -35 isholding the .crimps down flat. The main. wiper 25 meanwhile continues" rapidly laying and .nrimping and smoothing the leatherso that a perfectly hard flat heel seat results. l

It.will beunderstood that I have herein shown the preferred embodiment of my invention, and that many changes. in arrangement, location and-combination of parts may beresorted to without departingfrom the spirit and scope of my invention.

The wiper 35 constitutes a wiperrest or a seat-flattener, especially when used with a feeding jack, such forinstance as shown in my Patent No.'755,544, this-wiper-rest flattening and spreading the crimps and wrinkles under the force of the jack (or the pressure exerted by the workman, if no jack is used) and thereby ,makes the work much more even. It also helps. the main wiper in its work, asit aids in .pushing and pulling the leather over tightly by its forward travel. This makes thermachine easier to run.- Also ,itenablesthe operator to see his Work at all times when not driving tacks. Ordinarily I use .a usual down-hold in connection with the mechanism shown, but, for the sake of clearness, have omitted showing the same herein. 4 The position of final stopping of the tack channel 37 stop 58 of the clutch with relation .to the eccentric 42-, so that I can thereby adjust this feature in any way desired.

Having describ drny invention, what I depends upon the angle of the claim as new and desire to secure by Letters Patent, is, v

. 1. A machine of the kind described, comprising a tack driver and leather crimping and wiping vmechanism and, operating mechanisms constructed and arranged to rapidly reciprocate the crimping and-wiping mechanism a plurality of times to one tack driv 'ing movement,. combined with meanslo- .catedat the lower. end. of the tack driver adjacent said crimping mechanism for span ning the gapbetween the two and preventing .the leather from being pinched against. the acki'driver and for facilitating the smoothmovement of the work. T

2. A. machine of the described, com-' prising tack-driving mechanism including a nozzle,1a work rest .to[ engage the vertical side of the shoe and limit the inward movement 'of the shoe towardthe machine,. .a vertically unyielding,wiper-"immediately and always beneath said nozzle BJlQjlIl PQSltlOIl to. engage the bottom of'theshoe.continuously,

as long as the shoe is in o erativeposition, .against sa d vorkrest, an means to move v said wiper in sliding wiping engagement over the surface of the shoe-upper when so held, sa d wiper having a race-way arranged to ahne w1th the race-way of the nozzle when 0 moved into tack-driving position, and being movable out of alinement with said race-way at other times.

3. A machine of the kind described, comprisingtack driving mechanism including a nozzle, a workrest to position the shoe, a

- wiper immediately beneath said nozzle and means to move said wiper in sliding engagement with the shoe-u per when the latter is held against said wor 'rest, said'wiper having a race-way arranged to aline with the race-way of the nozzle when moved into tack driving position, and being movable out of alinement with said race-way at other times, and means operating on the leather'separately from saidwipera plurality of times to onemovement of the wiper. to position theleather for being tacked.

4. A machine of the kind described, comprising a main Wiper, means for rapidly reciprocating the same, a tack driver, means for intermittingly operating said tack driver,

I a combined auxiliary nozzle and supplemental wiper, and means for intermittingly operating the latter in unison with said tack driver.

5. A machine of the kind described, comprising an intermittingly operated tack driver containing a nozzle, a horizontally extending, movable supporting member be neath the lower end of the nozzle of said tack driver for holding the erimped leather in position for tacking, and a rapidly moving wiper operating substantially in the same plane as said supporting member for rapidly pushing forward and crimping the leather'to be held by said supporting member.

6. A machine of the kind described, comprising an intermittingly operated tack driver, containing a nozzle, a horizontally.

extending. movable supporting member beneath the lower end of the nozzle of said tack driver for holding the crimped leather in position for'tacking, and a rapidly moving wiper having a bifurcated forward end for o crating at the opposite sides respectively oi said supporting member for crimping and laying the leather tobe engag'edby the latter.

7. In a machine of the kind described,

tack-driving mechanism, a Wiper for laying over and crimping the projecting leather of the shoe at thev bottom of the last to receive a tack, and means for rapidly reciprocating the. Wiper a plurality of times for a single tack-driving movement, said wiper comprising a reciprocating arm having on its up er side a ivoted Wiping member projecting eond t e end of said arm, and provided with a heavy spring normally malntainin said wiping member under heavy downwar pressure, and means for guiding the movements of saidjarm;

8. In a machine of the kind described, means constructed and operating to stretch the upper leather over the edge of a last, ironing means constructed and arranged to iron out the leather at the side of the last transversely to the stretching movement simultaneously with and during the said stretching of the upper leather, and tack driving mechanism arran ed to drive tacks in the eather while being held taut.

9. In a machine of the kind described, means constructed and o )erating to stretch the-upper leather over t e edge of a last, ironing means constructed and arranged to support the work' and to iron out the leather at the side of the last simultaneously as it is being stretched, said ironing movement taking place in a direction transverse to the stretching movement, and tack driving mechanism arranged to drive tacks in the leather While the latter is being held taut.

10. A machine of the kind described, comprising crimping mechanism, a rotary workrest constructed and arranged to support and iron the counter portion of a shoe and shaped to fit down along the side and up at the crimped edge neXt to the heel, means for reciprocating said crimpin mechanism close to said rotary work rest a p urality of times to each tack driving movement, the top edge of the latter holding the leather smooth at the bend over the edge of the last as the crimping and crushing of the-counter and upper take place under the rapid movement of the crimping mechanism, and the said shaped rest ironing out said side and edge of the said counter portion of the shoe, and means for intermittingly drivin a tack into the work while held against said rest.

11. A machine of the kind described, comprising a tack driver, a rapidly moving wiper constructed and arranged to reciprocate a plurality of times to one tack-driving movement, a shaped rotary workrest close to the path of said wiper, the top edge of the work rest being constructed to hold the leather smooth at the bend over the edge of the last as the crimping and crushing of the counter and upper take place under the rapid movement of the crimping mechanism, and the said shaped rest ironing out said side and edge of the said counter portion of the shoe, and a hand grip immediately adjacent said rest in position to enable the operator to grasp together the Work and grip with the same hand for pulling the work hard against the rest and wiping mechanism.

12. A maehineof the kind'described, comprising tack driving mechanism, crimping mechanism, a rotary workrest immediately adjacent the path ofcrimping movement of said crimping mechanism having an engaging contour shaped to fit against the edge of the last and thence downwardlyfiat against the side and constructed and arranged to support shapes of counters.

and iron out the counter portionof the shoe as the leather is moved taut by the crimping mechanism, and provision for angularly adjusting said rotary workrest ;to sult different 13. A machine of the described, comprising tack driving "mechanism, crimping mechanism, a rotary Workrest immediately adjacent the path of crimpingsmovement, of said crimpin mechanism, and a hand grip adjacent sai rotary workrest in position to enable the operator to grasp the same and also the'work With the same hand for pulling the leather hard against the workrest and crimping mechanism, said hand grip containing provision forangularly adjusting it with relation tothe workrest.

In testimony whereof, I have signed my name to this specification, in the presence of- 1 two subscribing witnesses.

- CHARLES F. P-YM.

Witnesses:

STELLA KARRER,

AGNES M. KARRER.

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