US1258846A

US1258846A - Shoe-holding mechanism.

Info

Publication number: US1258846A
Application number: US5742715A
Authority: US
Inventors: Erastus E Winkley
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1915-10-23
Filing date: 1915-10-23
Publication date: 1918-03-12
Anticipated expiration: 1935-03-12

Description

E. E. WINKLEY.

SHOE HOLDING MEGHANISM. -APPucATloN man oc. 2a. 1915.

Patmted Mar. 12, 1918. v

nRA-sTUs n. WINKLEY, or LYNN, yMASsaonUsn'rrs, AssrcrNon,` BY MnsNE -ASSIGN- MENTS, To UN1TED SHOE MACHINERY ooRPoRArioN, or rArEnscn-NEWJERSEY,'

A CORPORATION lor NEW JERSEY.

' SHOEHOLDING MECHANISM;

To @Hw/tom 2f-may concern:

Be it known that I, ERAsTUs E. VINKLEY, a citizen of the UnitedStates, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in ShoeLHolding Mechanism ,and I do hereby Adeclare the 'iollowing tO be a full, clear, and exact description of the invention, su'ch as will enable others skilled in the art to which it appertainsV to make and use the saine.

This invention relates to shoe holding mechanism and more particularly to jacks for use in machines lfor performing' bottoming Operations on shoes such as welt butting andV tacking machines.

'Ihe primary object of the present invention is to provide in a shoe bottoming machine, a jack for supporting 'a shoe with suiicient rigidity for the operation to be performed, which may be manipulated quickly and eiiiciently in conjunction with the different parts of the machine without retarding the operating speed. v

In accordance with this object, one feature of the invention vcontemplates the provision in a vmachine for operating' on shoe bottoms, having lsupports for positioning a shoe for the operating tools, of a ljack so connected with the mechanism for operating the supports that, an operation of the supports to position the shoe will place the jack in an impact supporting position.

'Ihe preferred, although not the only, use of the invention is in connectionwith Welt butting and tacking machines. In` welt butting and tacking machines, a Welted, unsoled shoe is placed in the 'machine and the free ends of the welt are beveled, lor butted, :at approXimatelyA the breast line and are then tacked to the insole. The shoe is held. -in position for the butting operation by a pair of supports which bear against the upper and project into the welt vcrease under the ends of the welt and across the heel seat.

These supports do not always hold the shoe VSpeccation of Letters Patent. Patgnt'ed M31', 12 1918,'

Application 'mea october 23,19'1'5. Serial No. 57,427.

ment of the treadle to position the shoe willv operate a toggleto raise the jack rand yieldingly press the shoe against the supports. Furthermore, when the supports are with* drawn, at thevcompletion ofthe 'welt butting and tacking operations, the jack is lowered so that the shoe may 'be read-ily re- -movedfrom themachine.

Other features of the invention relating to certain devices,`coinbina"tions and 'arrangements "of parts hereinafter described and claimed, which possess advantages of simplicity of construction and ease of manipulation, the art. c

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is aside elevation showing vthe jack in its active position will be appa-rent to those skilled in as applied to a welt `putting and tacking machine; Fig. 2 is a irontelevation of the jack in its active position, and thebracket by whichV 'it is attached to the column'supporting the machine head; and Figs is a detail, in vertical section,V taken 'on theline 3-3 of Fig. 2 showing, however, the jack in'its released, orfinactive, position.

The portions of 5the wel'tbutting and tack- I ing machine shown in Fig. 1 are in all respects' the same vas Shown ,in applicants United States patent for a machine for operatingon shoe bottoms, No. 1,242,503 granted October 9, 1917. In tl'iis"machinethe shoe is positioned and lasted in by means of a pair ofsupports or shank lasting plates 10 which are moved toward and fromone another about a vertical axis by means of a bell-crank 12 connected Vby a treadle rod 14 with a foot treadle of usual form. After 4the shoe has been positioned underthe sup- .ports l0, a movement 'of thehand lever 16 lwill shifta 'clutch to operate the vwelt butting knives and the tacker mechanism 18.

vTo insure that the shoe will be firmly held in position durin'gvthe welttacking or analogousoperatiofn, the shoe is supported upon 'a jack and 'clamped between lthe positioning supports and theja'ck.y In the illustrated em bod'iment'oi:I the invention, the 'shoe supporting jack consists of a yielding spindle sec-` tion 20, a movable section 22, and a pivoted `section 2li. These sections are "telescopically mounted in OneanOther land swing as 'one piece about av pivot 26 on a bracket l28 mounted near the base of the machine column. The movable section 22 is tubular and yreceives the lower reduced end 32 of section 20. A strong spring 30 is interposed between the end 32 and a shoulder 34 at the lower end of the section 22. The relative movement of the

sections

20 and 22 is limited by means of a transverse pin 36 in section 20 which works in longitudinal slots 38 in the walls of section 22. The pivoted section 24 consists of a pair of arms 4() pivotally mounted on the bracket 28 connected by a transverse plate 42. The arms 40 are tubular and slidably support a pair of depending pins 46 attached to a bottom plate 44 on the movable section 22. A roll 48 is journaled in the plate 44, at the lower end of the movable section'22, in a position to contact a cam face 50 on the upper surface of a distance arm 52 having one end pivotally mounted at the upper end of the bracket 28 and also pivotally connected to the upper arm of a toggle 54, Fig.v 3.

To provide for a rapid manipulation of the jack so that the use of a jack will not retard the operative speed of the machine, The jack is moved up and locked in an impact supporting position automatically with the manipulation of the shoe supports to position the shoe. To this end the knuckle 55 of the toggle 54 is connected by means of a link 56 to the lower arm of a bell-crank 58, which is pivotally mounted on the machine columnA and loosely connected with the treadle rod 14. Y

lVith this construction, when a shoe is placed on the'last pin 21 at the upper end of the spindle 2O and the jacky swung about the pivot `26 to place the shoe under the supports 10, the roll 48 will engage the cam surface 50 and slightly raise the jack to press the shoe up against the supports 10. rlhe shoe is moved inward under the supports 10 until it registers with the position at which the welt is to be butted, thus placing the roll 48 over the cam 50. The treadle is then depressed to actuate the bell-crank 12 and operate the supports 10 to last in the upper and positionthe welt for the butting and lacking operations. The downward movement of the treadle rod 14 Vat this time actuates the link 56 to straighten the toggle 54. rlhis movement of the toggle raises and locks the jack, and through pressure of the cam 50 on the roll 48 yieldingly presses it against the supports 10 and, preferably, a heel seat gage 60. This gage is adjustably mounted on the machine frame by means of a bolt 62 threaded into the frame through a slot 64 in the gage, and, when used, acts to accurately position the shoe vertically. The gage 60 may be employed to receive the pressure of the strong spring 30 inthe jack and prevent an excessive pressure being placed on the supporting plates 10. ln the active position of the jack the strong spring 8O supports the shoe with suflicient rigidity for the tack driving or other bottoming operation that may be performed.

At thecompletion of the welt butting and racking operations, a release of the treadle raises the treadle rod 14 and separates the supports 10. rl`his movement also breaks the toggle 54, resulting in a release of the pressure on the shoe against the supporting plates 10, or the gage 60, and the .shoe may then be swung out from under the supports 10 by tilting the jack on'rits pivot A26, and removed from the jack.

rlhe ease with which the jack may be manipulated, and the automatic raising and locking of the jack with the operation of the other parts of the machine, allows it to be used without a retardation of the operating speed of the machine.

l/Vhile the invention has been illustrated and described as applied to a welt butting and tacking machine, it should be distinctly understood that it is not limited in its application to this type of machine but may be used in connection with other machines for operating Von the bottoms of shoes.

rlhe nature and scope of the present inl vcntion having been indicated and the preferred embodiment of the invention having been specifically described, what is Vclaimed as new, is Y 1. Shoe holding mechanism comprising a jack for supporting a shoe movable into and out of operating position, a cam in the path of movement of the ack to raise it when it f is moved into' operating position, and a toggle coperating with said cam to raise and hold the jack in its raised position.

2. Shoe holding mechanism comprising a shoe gage, a'pivotally mounted jack movable into and out of operating position and having two coperating, yielding telescopic sections, and means controlled by the movement of the jack into an operating position for longitudinally moving one of said sections to yieldingly press the other section and clamp the shoe against the gage.

8. Shoe holding mechanism comprising shoe positioningy means, a shoe supporting jack pivotally mounted to swing into Yand out of operating position under said means, a cam to raise the jack and shoe toward'said means during the swinging movement of the jack into operating position, and means to lock the jack in itsraised position.

4. Shoe holding mechanism comprising supports for positioning a shoe, a jack for the shoe, mechanism to actuate the supports to position the shoe, and means controlled by saidy mechanism to raise the jack and clamp the shoe against the positioning Y means. n*

5. Shoe holding mechanism comprising supports for positioning a shoe, a jaekpivotally mounted for movement into and out of operative position, said jack consisting of tliree telescopic sections, tWo of which are yieldingly held in cooperation, and means for longitudinally moving one of said yield* ing sections during the movement of the jack into operative position to yieldingly 10 clamp the shoe against the supports.

by the supports.

6. In a machine for operating on shoe bottoms provided With tools lfor delivering blows upon a shoe, ,supports for positioning the shoe, a jack for the shoe, means under control of the operator for actuating the ifi supports, and mechanism connected with said means to set the `iack in an impact sustaining position when the shoe 1s positioned ERASTUS E. WINKLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

v Washington, D. C. v Y