US892888A - Tack-machine for operating on lasted shoes. - Google Patents

Description

PATENTED JULY 7, 1908.

I 0. F. PYM. TACK MACHINE POR OPERATINGON LASTED SHOES.

PPLIOATION FILED PEB. 20, 1906.

5 SHEETS-SHEET 1.

PATENTED JULY 7, 1908.

C. I. PYM.

TACK MACHINE FOR OPERATING 0N LASTED SHOES.

APPLICATION FILED PEB. 20, 1905..

5 SHEETS-SHEET 2.

No. 892,888. PATENTED JULY 7, 1908. C. F. PYM.

TACK MACHINE FOR'OPERATING V0N LASTED SHOES,

APPLICATION FILD FEB. 20, 1905.

5 SHEETS-SHEET 3,

No.`892,888. v PATENTE-'ID JULY '7, 1908. C. P. PYM.`

TACK MACHINE FOR OPERATING 0N LASTBD SHOES.

APPLICATION FILED Enzo, 1905.

5 SHEETS-SHEET 4.

@www A No. 892,388. EATENTEE JULY 7, 190s. c. E. PEM. TAGE MACHINE EOE OPERATING 0N LASTED SHOES.

APPLICATION FILED FEB. 20, 1905.

5 SHEETS-SHEET 5.

| l: :Il: li

66' ff W .965.' Zia/@2mn Yea/fles ,Zgm JQ @m I I Mrz@ A UHARLES F, PYM, OF WINDSOR. ONTARIO, CANADA. ASSIGNOR OF ONE-H BRO'II-IERS` COMPANY, OF DETROIT, MICHIGAN.

UNITED STATES T OFFICE.

A CORPORATION OF MICHIGAN.

TACK-MACHINE FOR OPERATING ON LASTED SHOES.

Specification of Letters Patent.

Patented July 7', 1908.

Application filed February 20, 1905. Serial No. 246,586.

3 parts.

step which follows the lasting of the shoe andprecedes -the inseaming, thereof orsewing' Shoes are manufactured nowadays almost entirely by machinery, but there are still a few steps in their manufacture which are accomplished by hand., and one of these is the the upper to the innersole, when the lasting tacks have to be removed and stay tacks or anchor tacks driven at the critical points determined by the skill of the operator as he removes said stay tacks. After the innersole or insole has lbeen tacked in place on the bottom4 of the last, usually by three insole tacks along its center, and the up er applied, the edges of the upper about t e sole are pulled bynippers over the edges of the innersole and secured in their strained position by a series of more or less closely driven lasting tacks (and usually by a tightly drawn wire about the toe), which remain until the-green leather of theupper has had time to set or become fixed in position somewhat, and then a skilled operator removes by a hand tool said lasting tacks and 'toe wire (which would interfere with the needle in sewing the upper to the innersole), and, during said removal, whenever he sees that the stretched leather is liable lto recover itself or change its position he quickly drives a stay tack to prevent any distortion or displacement, said stay tacks being driven also at other critical points according to the operators judgment-and experience, Vto maintain the upper in lasted position while being subsequently sewed.

In using my machine the operator simply presents the shoe to the machine, which instantly removes the lasting tacks and wire, driving a stay tack nstantlv at'the will of the operator in whatever place desired, so

that the Vcomplete result is-accomplished in a superior manner and the shoe is ready for sewing in a fraction of the time heretofore required.

The constructional details ofthe referred embodiment of my invention, andt e operation and further advantages thereof will be pointed out more fully in the followingde- ALF TO KREN TLER- scription, reference being had to the accompanying drawings, andthe invention will be further defined in the appended claims.

In the drawings, Figure 1 shows, in side elevation, the complete machine, illustrating the manner of operating the same; Fig. 1 2 is an enlarged side elevation ofthe head thereof; Fig. 3 is a top plan view; Fig. 4 is anenlarged perspective view showing a lasted shoe under treatment; Fig. 5 shows thehead of themachine in front elevation, Fig. 6 is a sectional view on the line 6, Fig. 3 Fig. 7 is a detail in side elevation of one form of claw or tack remover; Fig. 8 is a fragmentary sectional view on the dotted line 8 8, Fig. 2;

-Fig. 9 is 'a longitudinal sectional. view through the clutch end ofthe main shaft and adjacent parts; and Figs. 10 and `11 are sectional details of the clutch.

On a suitable pedestal is mounted the head A of the machine, whose mechanism is driven by a belt-pulley 1 mounted loosely on a shaft 2 supported in bearings 3 in the upper ends of brackets 4 on a table 5. Fast on the pulley 1 is a gear 6 in mesh with a pinion 7 for constantl rotating a shaft 8 also supported in offset l; parallel and adjacent to the shaft 2. Fast on this shaft 8 is an eccentric 9 Whose strap 10 earing portions of the brackets 4V carries an arm 11 pivoted at 12 to links 13,

for giving a four-motion orbital movement or forward-and-backward, up-and-down motion to a tack-removing claw 14 carried by the outer end of said arm for removing the tacks. webb ormain bracket 16 on the table 5.

Coperating with the tack-'remover is a rest 17 wlioseflower end 18 isadapted to engage With the shoe for properly .positioning ythe latter and aiding in maintaining' said The links 13 are pivoted at 15 to al anchor tacks, said driver being herein shown as just-out of the path of movement of the claw 14 to the right facing the machine, see

also Fig. 8. As any usual or preferred kind of tack-driver may be employed (and the same is equally true of the tack-remover, eX cept when otherwise specified in certain of the claims hereinafter) I have shown in the drawings merely sufficient details of a wellknown mechanism to enable my presentV invention to be fully understood and 1 have `said-cam.

quired forty or more lasting tacks.

omitted' to show, and will therefore not describe, the internal mechanism of the tack- 'driven Suffice it to say that a hammer-rod 26 is carried at the lower end of a reciprocating plunger 27 and operates in a stationary nozzle 29 which also acts as an auxiliary rest vto support the edge of the shoe S or upper the shaft 2, being fed thereto from a hopper or magazine down a raceway 40 by a slide 41, lever 42 and arm 43 in connection with a distributer 44 actuatedby a broken shaft 45, 46, provided with a worm-wheel 47 engaged with a worm 48 on the shaft 8 before mentioned.

As will be understood from the description thus far, the tack-remover is constantly re- `ciprocated at a relatively high speed imparted by the gearsl 6, 7, whereas, as previously stated, the tack driving means must at all times be subject to the direct control of the operator, inasmuch as it is usually not necessary to drive more than four or five stay tacks for an entire shoe which mayhave re- Accordinglyl provide means for intermittingly rotating the shaft 2, herein shown as a clutch 49 which is brought into action'by a treadlelever 50 connected by a rod 51, normally held'- vupward by a spring 52, to a dog 53 pivoted in a bracket 54 to engage and ydisengage said clutch.

Any kind of a clutch may be employed.

For convenience 1 have herein shown the same as consisting of a ianged sleeve 55 having a recess 56 carrying a roll 57 partly occupying a wedge-shaped recess 58 in the shaft 2, the latter also having a linger 59 en aged by a spring 60 in a recess 61 of said s eeve. Said spring 60 is normally compressed, so that when thedog 53 is suddenly released from engagement with an ear 54 projecting from the iange of said sleevev 55, said spring gives a slight rotary movement. to said sleeve,'suflicie'nt to carry the roll 57 into wedging engagement between the shallow 4portion of the shaft-recess 58 and the inner surface 'of the driving pulley 1, as is clearly ceases is rotated over to the right in the direction of the arrow Fig. 2, raising' the arm 31 of the tack-driving mechanism which instantly drops upon passing the shoulder 36 of said cam. Just as this movement takes place, a

cam-shaped member 62 wedges tightlyagainst a friction block 63, mounted on a heavy spring-arm 64adjustably supported on the table 5, with the result that the rota tion of the shaft 2 is quickly brought almost toa stand-still, being stopped by the engagement of the ear54 with the .dog 53 which meanwhile has been brought into position therefor by the spring 52.. v The block 63 is provided with a notch 65 which coperates' with the` cam-member 62 to prevent backward rotation of said shaft.

Thus it will be seen that when a shoe is to be operated upon, the vo erator simply holds the same in the genera position shown Y in Fig. 1, with the rest 17 against the inner portion of the insole, whereupon the lrapidly operating tack-puller removes the lasting tacks as rapidly asuthe shoe can be moved along llongitudinally in front of the same, and, whenever the operators judgment or eye calls for a stay tack, he simply depresses the treadle 50, whereu on a stay tack is instantly driven; 1n t e present embodiment of my invention, the stay tack willbe driven just outside of the lasting tack line, although it may be otherwise located if desired, or the position of the stay tack can be readily changed simply by shifting thev shoe slightly as the stay tack is about to be driven. Ordinarily the stay tacks are not driven deeply, the operator controlling this in any suitable manner, for instance either by depressing the shoe momentarily. by hand or by the rest 17 away from the nozzle 29. This brings me to a further explana-` tion of the purpose-.and operation ofthe movable rest 17 taken in connection' with certain features of the' tack-remover not yet explained. Viewing Fig. 4 it will be noted that the different tacks are shown as inserted in the shoe to different depths, the stay tacks t being only slightly inserted, as already stated, and most of the lasting tacks t being left projecting some distance eX- cepting adjacent the heel, as indicated at t2 where they are usually driven down further, while the insole tacks t3 are driven hard down, the middle one as shown in said Fig. 4 being indicated as having the head actually embedded in the relatively sp'ongT insole. Also occasionally a lasting tack gets driven inside of the usual. stitch-receivingv lip m. To enable my. machine, therefore, to perform all the operationsl of every kind in connection withthe tacks,`where ever and however they may be placed in the seass bottom of a lasted shoe, I have not only made the tack uller or claw angularly adjustable, as .in icated at 66, Fig. 7, but I have vprovided it with a bent lend 67 preferably slightly upturned or scoop-shaped -lat its forward end 68 as best shown 1n Fig. 4,

although'for certain purposes it may be deflected straight down, as indicated at 69,

' Fig. 7. And by having the rest 17 adjustnersole in direct line with the end 68 of the,

claw, thereby permitting the latter 'to dig under the embedded head of the tack, or, if the toe wire is tobe removed, the operator gives a quick, downward movement to the -rest 17 in conjunction with the forward movement of the claw. In other words by having the claw angularly shaped, as shown, it is capable .o f digging downwardly for removing embedded or bent tacks, even tacks which -may be inside of the lip as above mentioned, and by having the vertical position of the rest 17 controlled at will, the shoe'may be instantly brought by the operator to the most advantageous position for extracting or for drivingany tacks desired. By providing a foot-operated rest to resistfthe upward -pressure of the handmani u-lated shoe when presented to the rapid y and constantly movingl tack-puller and intermittingly-operated tack-driver, I have found that extreme accuracy and rapidity of results-can be secured. A further advantage vof the manuallyregulated or-adjusted rest or work-Guide, is that the operator canfthereby readily accommodate ,the machine to different .thicknesses of upper. That is tosay, if the up cris very thick, the rest must be depressec, in order to -engage the lower lane of the insole, for

normal operation, 'w ereas if -a very 7thinA u per, it will more nearly coincide with the p ane of the insole and, therefore, the rest .need not be materially depressed therefor.

It is desirable to change the angle of the claw 14 to suit different classes of work and kinds of leather. i

I have already sufficiently set forth the operation of my machine in the course of the description thereof. Briefly stated, the operator presents one end of the shoe tothe machine with the'innersole against the en'd 18 of the rest, vand then quickly moves the -shoe longitudinally along, while the reciproeating tack-puller, with its four-motion movement, quickly draws all the tacks in its path, and', as lie sees the need of a stay tack, e instantly drives one by depressing thelelasting tacks.

ver and passes 'right along to drawingadf;

jacent lasting tacks. In Fig. 4 I have indicated two stay tacks as havingbeen driven, and' have indicated by.dotted lines. the position previously occupied bythe intervening Whenever the o erator finds a tack rdriven in further than tie others, oi' not as far as the others, he raises the rest or else lowers it, as the-case may-be, so as to change the plane of the shoe or the angle at which it is presented to the 'claw-end 68 for" enabling the latter properly to engage the head of the tack, whether the latter bedeep down or standing highwith relation to the leather. n

Not only is the work accomplished bymy machine much more quickly and evenly or more satisfactorily, but a comparatively unskilled workinan can operate it, as itdoes not i require the ex )ertness and skill called for vby the hand work, and -it leaves the workman entirely free to--direct all his attention to his work without being inconvenienccd and lacerated by a quantity of stay tacks carried in the mouth as has heretofore been the custom of these workmen.

As already intimated, I wish it understood that I do not intend to limit my invention to the constructional details herein presented, excepting as stated in the claims.

I'Iaving described my invention, what I claim as new, and desire to secure 'by Letters Patent of the United States, is:

1. The combination,in a machine for operating on lasted shoes, of a work rest, to be 100 engaged by the shoe, means under thecontrol of the operator for varying the position of the work rest, tack-reinoving means, and means operable at will for driving atack.

2. The combination, in a machine for o 105 erating on lasted shoes, of a work rest to e. engaged by the shoe, means under the con trol of the .o erator for varying the vertical position of tie work rest, 'and means operable at will for driving a tack. l

3. The combination, in a machine for operating on lasted shoes,- of ltackrrioving means, a work rest constructed and located to engage the bottom of the lasted shoe at such a distance, asto bring the line of lasting tacks between the'engaging end ofthe work rest and the tack-moving means,'and to ermit the instant free. movement ofA thes .oe

` laterally in any direction, and means under the control of the operator for yvarying the vertical position of the work rest to causethe tack-movingmeans to engage the shoe at differentV angles or directions according tothe. exigencies of the work.

4. The combination, in a machine for op.- 1

erating on lasted shoes, of a tack-iiioving device, means for giving said device aforward horizontal movement terminating in a shortA upward movement' for verticallymoving the tacks, a workrrest constructed and located to '1 engage the bottom of the lastedlshoe at sucha distance asto bring theline of lasting. tacks between the engaging end of the work rest and said tack-nioving device, and to permit the instant free movement of the shoe laterally in anydireetion, and means under the control of the operator for varying the vertical position ofthe work rest to cause thetack-moving device -to engage the shoe at different angles or directions according to the exigencies of the work. A

5. The comb-"nation, in a machine for o'perating on lasted shoes, of a tack-moving device having a tack-engaging claw whose forward end is bent angularly downward with relation to the direction of forward movement of said device, means for giving said device a forward horizontal movement terminating in a short'upward movement-for ver-v tically moving the tacks, a work rest cion,- structed and located'to engage the b'ott'omof -the lasted shoe at such a distance as to bring the' line of lasting' tacks between'the engage ing end ofsaid work rest andsaid tack-mov.- ing device, and to permit the instant free movement of lthe shoe laterally in any direction, and-meaiis under the control of theo erator for varying lthe vertical position oft e work rest Sto cause the tack-moving device to, engage the shoe atv dierentangles or direc-'- tions according to the exigencies of the work.

6. The combination, inas machine for operating on lasted shoes, of a tack-moving device having a tack-engaging claw Whose forward end-is bent obliquely downward` and curved forward at its extremity into 'a scoop- Vvshaped end, means for giving said vdevice a forward horizontal movement terminating in'l a short upward movement for vertically moving the tacks, a 'work rest constructed and located to engage the bottom of the lasted shoe at such a distance as to bring the line of lasting tacks between the engaging end of the work rest andsaid tack-moving device, and to permit the instant free move. ment of the shoe laterally in any direction, and means under the control of the operator for varying the vertical position of the work rest to cause the tack-moving device to en gage the shoe at different angles or directions according to the eXigencies of the work.:

7.: -The combination, in a machine for operating on lasted shoes, of a tack-moving device having a tack-engaging claw whose forfward end is bent obliquely downward andV in a short upward movement for vertically Y moving the tacks, a work rest constructed and located in' longitudinal alinementwith ssa :esa

,saidtack-moving device in front of said claw to-engage thebottom of the lasted shoe at l:such a dstance as-to bring the line of lasting tacks-between the engaging end of the work rest and said tack-moving device, andto @Tf Init the instant free movement of the sdioe" laterally any direction, and means under the control of the operator for varying'the vertical position of the work rest to cause the tack-moving device to engage the shoe at different .angles .or directions according to the eXigencies 'of the work.

8. A machine for operating on -lasted shoes,

-including means for moving the lasting tacks, v

consisting of a reciprocating. arm, means for giving thearm an orbital moving movement,

va claw in the forward end of said arm, means for adjusting the` inclination of said claw ang-ularly with reference to the longitudinal di rectionof said arm, a work rest for engaging the' bottom of the slfoe whilevbeing operated uponrby said movin means, and means unv der ,the control ofv t e operator for varying 'the vertical position of the work rest.

9. A machine for operating on lasted shoes, comprising va tack-mover, means for giving .the same a forward and upward movement --for moving tacks from the shoe, a workV rest operatingsaid tack-remover,l av tack-driver,

means connected with the aforesaid mechanism Xyfor operating said tack-driver, said means including a' clutch, and manual means for controlling-said clutch, and means for frictionally stopping. said operating means after the driving of each tack.

l1. A -machine for operating on lasted shoes, including means for moving the lasting tacks, (':onsistingof a reciprocating arm, a

- claw. 'in' the forward end of said arm having .ward at an angle to the longitudinal direction of said arm and thence slightly upturned Y with a scoop-shape at its extremity, and optwo subscribing witnesses.

CHARLES F. PYM. Witnesses OTTO SONNENBone,` EDWIN G', KRENTLER.l

vnameto this'specification, 'in the presence of

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