US1053674A

US1053674A - End-lasting mechanism.

Info

Publication number: US1053674A
Application number: US63010611A
Authority: US
Inventors: Benjamin F Stuber
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1911-05-29
Filing date: 1911-05-29
Publication date: 1913-02-18
Anticipated expiration: 1930-02-18

Description

B. F. STUBER.

END LASTING MECHANISM.

APPLICATION TILED MAY 29,1011.

1,053,674, Patented Fb.18,1913

3 SHEETS-SHEET 1.

l/M/T/VESSES WI/E/V 70/ 42% a W 1L ZZ M f 0. gtpm B. P. STUBER.

END LAS'IING MECHANISM.

APPLICATION FILED MAY 20, 1911.

1 ,05 3 ,674, Patented Feb. 18, 1913.

3 SHEETS-SHBBT 2.

B. P. STUBER.

END LASTING MECHANISM.

APPLICATION FILED MAY29,1911.

1,053,674, Patented Feb. 18, 1913.

3 SHEETSSHI n'l' 3.

WT/VESSES //Vl/E/\/7Z.7/\ 597W 7m UNITED scares AfiCENT OFFICE.

BENJAMIN F. STUBER, OF GARDINER, MAINE, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEX.

END-LASTING MECHANISM.

Specification of Letters Patent.

Patented Feb. 18,191 3.

Application filed Man 29, 1911. Serial No, 630.106.

To all whom it may concern Be it known that l'. BENJAMIN l S'runnn, a citizen of the United States, residing at Gardiner, in the county of Kennebec and State of Maine, have invented certain lmprovements in End-Lasting hlechanisn'is, of which the following description, in connec- 'tion with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to lasting machines and is herein shown as embodied for the purpose of exemplitieation in end lasting mechanism of the type used in the well known Chase lasting machine and shown in United States Letters Patent No. 571,429, granted on November 17, 1896, on application of Frank Chase.

Objects of the invention a're to improve the toe lasting mechanism for obtaining better fitting theneof to .the toes of right or left crooked lasts and to improve the operation and increase the durability of the of the toe.

toe lasting pad or too embracing band.

A feature of the invention consists in novel provision for adjustment of the toe lasting mechanism for right and left crooked lasts.

When the toe and the heel of acrooked last are supported respectively onthe toe rest and the heel rest of the machine it is found that the median line of the forepart, and to a. less degree of the heel part also, diverges from the median line of the ma chine in, or synnnetrically with relation to, which the toe lasting wipers advance and close to overlay the upper u on the shoe insole. In the manufacture o't welt shoes this is important because it renders dillicult, it not impossible, uniform lasting up to the channel lip of the insole on the two sides 'lo O\'('I'((.)IIIB this ditlieulty, l have mounted the toe lasting mechanism, including the wipers and their operating means, and preferably also the toe pad or band, for lateral angular adjustment about a pivot that is located at one side of the median line of the machine. This pivot locationis also preferably in front of the shoei' As a result of this location a small -adiustment is sutlicient to bring the median line of the toe lasting mechanism toward i -one side or. the other of the machine into alinenient with the median line of the forepart of the right or left last that is to be operated upon.

A further feature of this'invention consists in novel provision for holding the too pad or band in position to cooperate with the toe wipers in forming a square or well defined edge line at the edge of the shoe bottom.

ln machines of this type the last and the toe lasting means are relatively moved vertically with the lasting means in rubbing engagement with tlieiippei on the side faces of the toe to shape the upper progressively toward the edge over which the wipers lay it. In thisopcration, which in this machine is etleeted by depressing the last, the downward rubbing of the upper leather on the toe pad tends to cause the pad to sag, particularly at the corners of the too between lthe points of connection of its operating means with it. When the pad or any portion of it sags down it fails to reach up to the edge of the shoe and fit snugly a 'ainst the wipers as it should do and a portlon of the edge of the shoe is not shaped by it. The shoes then come from the machine with a more or less rounded and irregularly shaped edge instead of the well defined angular edge that it is particularly on welt shoes the toes of which cannot be pounded up and blocked as are the toes of McKay shoes. In the embmliment of this feature of the invention herein shown a pad supporting plate having, a U-shaped recess is provided which furnishes an underlying substantially uninterrupted pad support engaging the pad throughout the length of the portion of the pad which is liable to'sag. The recess in this plate may be large enough to provide for some spread of the pad for larger sizes of shoes and the plate may be supported for ready removal and replacement for such variations in shape and size of shoes as require the usual changes in the wipers. Preferably the plate is supported for adjustment laterally to accommodate right. and left toes, as for example by pin and slot connertions and is also supported so that it can be made to press pads of different depths utirmly up against the lower face of the wipers.

The invention will more fully appear in connection with the tollmving'description ot the illustrated machii'ie and will then be pointed out.- in the claims.

l ig re l is a side elevation partially in section througl the toe of the last, the pad and .he wipe Fig. a section on line 2--2 oil i 1. and 23; Fig. 3 is a plan View.

The frame of the mac line :t'urnishes support to]: the shoe sustaining means, includ-' ing the toe rest 52 and a heel post, not shown, and for the toe lasting head l which as a whole adjustable lengthwise of the ma chine by the hand Wheel connected by a screw to the frame and the head. The head at supports a carriage (3 that can be tipped adjustably y the. screw '8, the lower end of which rests unattached upon the head, about a transverse pivot bolt that connects the carriage (.3 to the head This adjustment adapts the plane of the wipers 12 to the spring or lengthwise curvature or inclination ot )0 last bottom as is well understood.

' A. hand lever 14. and connections serve to advance and close the wipers over the shoe bottom. .he pad 15, including a. chain and a noiraln'asive lining is supported at its ends by the guide bars 16, Fig. 2, and at its middle by the bar 17, Fig. 1. The car riagc sustains a bracket in which is pivoted and slides the last depressor and retarder bar 22. This bar is caused by a cam lever 24 to fulcrum about the pin 23 that connects it to the bracket-and thereby to clamp the rctarder 25 down upon the upper which has been outspread upon the top of the wipers as in Fl l. A hollow post on the end of the bar 25 carries a last depressor stem 26 and a handled eccentric 28 by which the stem and the attached depressor foot 30 are actuated to force the last downwardly 'into the upper which is held between the wipers are advanced to overlay the upper.

lhtring this de in'cssion of the last the upper about the toe embraced by the pad 15 and. shaped by it to the contour of the side faces of the last, there being more or less rubbing action as the shoe is depressed. relativcly to the pad.

'lhe machine as thus far described may be substantially as in the commercial type of this machine except as to the last depressor foot which embodies an invention that is claimed in a co-pending application.

The end of the transverse pivot rod 10 which is at the back side of the machine, tartl'icst from the usual position of the operator, stands in a recess in the head 4 the walls of which recess are rounded out to )crniit some 'ila and the end of "this )ivot l l shifted torwardl or lmckwardly.

ing in the carrier (3 and by the described adjustment the carriage is shifted angularly about a center which at or near the rear end of the rod 1th This location, it will be seen from Fig. 3, is in front of the toe of the shoe and at one side of the shoe. By reason of this location a slight adjustmentof the rod 10 sullicient to shift the toe lasting carriage for positioning its median line in the median line of the forepar-t of a right or leftv crooked last. It is to be noted that by the described adjustment not only are the wipers shifted but their actuating mechanism as well so that when they are advanced they move symmetrically with relation to the median line of the forcpart of the shoe for which the adjustment has been made. It is also to be noted that the toe pad is adjusted by the described arrangement about a center located as above mentioned.

shown in Figs. 1 and 2, is located the pad supporting plate the contour of Which in plan is shown by dotted lines in Fig. 3. From this latter figure it Will be seen that the plate has a U-shaped opening in its front edge'corresponding in general outline to the shape of the toe portion of the shoe. The plate underlies the chain, and it may be a portion of the pad lining, throughout substantially the entire length of the pad. lhe plate is supported by rods 46 the headed lower ends of which extend through 0utwardly opening slots in end extensions of the 'plate' The rods extend through a portion of the head 6 and their upper ends are threaded and receive nuts by which the plate 45 may be either clamped in endtvise enough freedom to permit it to move. transversely of the machine for adapting its position t0 the Work. The plate serves to prevent the pad from sagging and to maintain its upper edge in contact or substantially in contact with the lower face of the Wipers so faces of the pad and the lower faces of the Wipers form an angle in which the edge of. the shoe is shaped. 4 l

The use of the invention has been sufi' ciently pointed out in the foregoing "del of the machine.

Immediately below the toe pad 15,

adjusted position or may be supported with that when the Wipers are closed the inner I extends without lost motion through a bear- 2. A. lasting machine having, in combina- (ion, toe lasting mechanism including wipers and actuating devices therefor, and a support upon which said lasting mechanism is mounted for adjustment laterally about a vertical axis located in front of the shoe and at one side of the median line of the machine.

3 2X lasting machine having, in combination, a lasting head 4, a carriage 6 mounted thereon and supporting toe lasting devices, a transverse pivot rod 10 about which the carriage is adjustable for the spring of the last, and means for adj usting one end of the pivot rod for "ardly and backwardly to aline the median. line of the lasting mechanism with the median line of the forepart ot' a right or left crooked last. i

4. A lasting machine having, in combination, a toe embracing pad, a support for the 1 pad, and means pern'ntting adjustment of the pad support about a vertical axis located 1n front of the shoe and at one side ol' the median line of the machine.

5. A lasting machine having, in combination, an end embracing pad and a plate un derlying the pad and forming a substantially continuous support therefor to prevent it T from sagging, and vertically adjustable means for sustaining the plate substantially as described.

6. A lasting machine having, in combination, end lasting wipers, an end embracing pad and means affording substantially un-- interrupted support for the lower edge of the pad and adjustable vertically to mainfor vertically upholding it and maintaining 5 the upper edge of the pad parallel \vith'the lower face of the wipers, substantially as and for the purpose described.

[n testin'iony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BENJAMIN F. STUBER;

\Vitnesses:

ll. Maui-1L Conn, Faun l). S'rnou'r.