US1163800A

US1163800A - Lasting-machine.

Info

Publication number: US1163800A
Application number: US82360214A
Authority: US
Inventors: Erastus E Winkley
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-03-09
Filing date: 1914-03-09
Publication date: 1915-12-14
Anticipated expiration: 1932-12-14

Description

E. E. WINKLEY.

LASTINGVMACHINE.

APPLICATION FILED MAR. 9. 1914.

Patented Dec. 14, 1915.

2 SHEETS-SHEET I.

E. E. WINKLEY.

LASTING MACHINE.

APPLICATION FILED MAR. 9, 19:4.

Patented Dec. 14, 1915. 4

2 SHEETS-SHEET 2.

- treason;

UNITED %TATE% PATENT @FFICE.

ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS.

LASTING-MACHINE.

Specification of Letters Patent.

Patented Dec. M, 1915.

Application filed March 9; 1914. Serial No. 823,602.

'of the type known commercially as hand method and more particularly to improvements in the hold down or shoe rest forming a feature of such machines. As at present used the hold down is provided at its sole engaging end with a toothed portion adapted to penetrate the sole, upon upward pressure on the shoe, and enable the operative to thus resist the thrust on the shoe due to the outward draft occasioned by the overlaying movement of the pincers and the for- 'into position for the neXt lasting operation.

The object of the present invention is to provide an improved hold down which, while constructed so as to successfully nullify the outward thrust on the shoe, will at the same time permit the shoe to be fed without withdrawing it from engagement with the hold down, thus increasing the speed, and ease of operation, of the machine.

In accordance with the object the invention contemplates the provision of a pricker point, or toothed bar, which is normally housed within the hold down leaving a smooth, sole engaging end on the hold down past which the sole may readily be slid, in feeding, without a disengagement, but which is projected forward into the sole during the lasting operation. This construction provides a compound hold down having two parts, one to vertically position the shoe and the other to hold the shoe against the outward thrusts from the tools for'working the upper over thelast. Preferably the pricker point is advanced and withdrawn automatithe lasting instrumentalities, but the invention, as defined by the appended claims, is not limited to such automatic operation.

To the accomplishment of this object and such others as may hereinafter appear the invention comprises certain devices, arrangements and combination of parts hereinafter described and claimed.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which the invention has been shown for purposes of description as applied to the type of hand method lasting machine exemplified by Letters Patent of the United States to S. W. Ladd and R. F. Mc- Feely No. 584,744, and S. W. Ladd No. 597,321.

In the drawings: Figure 1 is a side elevation of a lasting machine of the type specified with the improved hold down of the present invention applied thereto; and Figs. 2, 3 and i are a plan, elevation and underside view respectively of the improved hold down, the supporting bracket and shaft for operating the pricker point being broken away.

In the embodiment of the invention illustrated in the drawings the lasting machine head, as shown in Fig. l, is provided with the pincers l and their operating mechanism; the tack raceway 2; the driver 3 and its operating mechanism; the tack block 4;

the edge guide 5: the cam shaft and driving pulley 6 therefor; and other operating parts. all as shown in said Letters Patent of the United States hereinbefore referred to, to which reference may be had for a detailed description thereof.

At the front of the machine there is the usual bracket 7 having a downwardly projecting boss 8. This boss 8 is provided with a vertical guideway 9 (Figs. 2 and 4) against which there is adjustably bolted a bar 10 which has a lower split end within the two arms on which there rests the hold down 11. The hold down 11 may be adjusted in and out relative to the pincers within the split end of the bar 10, and is held adjusted in position by a clamp bolt 12. A second clamp bolt 13 secures the bar 10 and hold down 11 in any desired position of vertical adjustment on the boss 8. These adjustments provide for a proper location of the hold down when operating on different kinds of shoes.

The hold down 11 is provided at the under positively by penetrating the stock.

side of its inner end with a smooth surface 12 (Fig. 1) for engaging the sole of the shoe, being operated upon, by frictional contact only. When the shoe is presented in working position with the face of the insole pressed upwardly against the surface 12 of the hold down 11, the vertical position of the shoe in the machine is determined in the same manner as with hold downs heretofore in use. The underside of the hold down 11 is provided with a guideway formed by two pairs of gibs 13 and 11 (Fig. 4) within which there is mounted, for sliding movement, a bar 15 formed with teeth at its inner end for engaging the shoe sole For convenience this bar will be called a pricker point. The parts 11 and 15 constitute together a compound hold down carried by the bracket 7. hen in inoperative position the toothed end of the pricker point 15 is housed within the inner end of the hold down 11, as shown in Fig. 4. Means is provided for reciprocating the vprlcker point within its guideway so that it may be projected beyond the end of the hold down and into the sole of the shoe being operated upon.

Such means comprises a bell crank lever pivoted on a bracket 16 (Figs. 2 and 4) projecting from the rear end of the hold down 11, one arm 17 of the bell crank lever being connected through a pin and slot to the rear end of the pricker point 15 and its other arm 18 being pivotally connected to one end of a slide bar 19, guided in its movement in a transverse guideway 20 carried at the upper side of the rear end of the hold down 11 (see Figs. 2, 3 and 4). This guideway for constructional purposes is provided with a detachable cover plate 21, shown best in Figs. 2 and 3. The forward end, viewing Fig. 3, of the slide bar 19 is twisted as shown in Fig. 2, and is provided with a horizontal pin 22 adapted to engage in a vertical slot formed in the lower end of a depending lever 23 secured, by a set screw, to the forward end of a horizontal rock shaft 7 24 journaled in bearings 25 and 26 (see Fig.

the overlaying movement of the pincers. The.

roll 28 is continually held in contact with its cam by means of a coiled torsion spring 30 having one end connected to the rock shaft.

24 and its other end connected to the frame 7 of the machine.

The purpose of the loose connection formed by the pin 22 and slot in the lever 23 is to permit the vertical and in and out adjustment of the hold down parts- 11 and 15 without destroying the operative connection 'for reciprocating the pricker point.

In theoperation of the machine the sole of the shoe is placed against the smooth surface 12 at the lower side of the hold down 11 thereby positioning the shoe vertically for the operation of the pincers and then the machine is started in the usual manner. Substantially simultaneously with the commencement of the lasting operation the cam on the cam disk 29 becomes active to rock the shaft 24 in a direction to project the pricker point 15 from its position as shown in Fig. 1, forwardly and cause its teeth to penetrate the sole of the shoebeing operated 7 upon. Thereafter, during the updrawing and overlaying movements of the pincers and the advance of the tack block, or other wiper, to hold the upper in position for the insertion of the tack, the pricker point remains in this forward position thus holding the shoe against the outward thrust of the lasting instrumentalities and relieving the operative of the strain of resisting this thrust. operation is completed, the shape of the cam on the cam disk 29 permits the spring 30 to rock the shaft 24 in an opposite direction to withdraw the pricker point from the sole of the shoe and house it within the hold down 11, leaving the shoe engaged merely by thesmooth surface 12 at the shoe engaging end of the hold down. hile the pricker point is thus withdrawn the shoe is easily slid by the operative past the smooth sole engaging surface 12 to feed the shoe. After the feeding movement the pricker point 15 is again projected forwardly so as to penetrate the sole and again hold the shoe against the outward thrust of the lasting instrumentalities- It is thus seen that the pricker point 15 becomes active during each lasting operation and inactive between successive lasting operations. As the teeth which engage and hold the shoe during the lasting operation are completely housed prior to the feeding movementand therefore offer no obstruction to the feeding movement, it is unnecessary for the operative to change the vertical position of the shoe during the entire lasting of the shoe. This is a distinct improvement as it enables the speed of the machine to be increased and adds materially to the ease and accuracy of the operation.

lVhile the invention has been illustrated as applied to a hand method lasting machine for lasting McKay shoes, it will be apparent to those skilled in the art that this improved hold down is equally advantageous in such machines for operating upon welt shoes, as in those machines the outward thrust on the shoe is even greater due to the provision,

in addition to the sliding tack block, of

As soon, however, as the'lasting wiper plates for pressing the upper into the shoulder between the outer lip and feather of the insole.

It will, of course, be apparent that it is immaterial to the end sought which of the parts 11 and 15 is made the movable member, it only being essential that a construction be chosen which will provide for a relative movement between the two parts so as to cause them alternately to become active. It will, therefore, be recognized, by those skilled in the art that the invention is not limited to the details of construction and operation of the illustrated embodiment, but may be embodied in other forms within the terms and spirit of the appended claims.

What is claimed as new, is:

1. In a hand method lasting machine, a two part hold down comprising a part for engaging the shoe by frictional contact only, and a relatively movable part carriedthereby figr engaging the shoe by penetrating the stoc 2. In a hand method lasting machine, a hold down having a smooth shoe engaging end and a guideway, and a pricker point slidably mounted on said guideway adapted to be projected beyond the end of the hold down and into the shoe being operated upon.

3. In a hand method lasting machine, a hold down having a smooth shoe engaging end and a guideway, a pricker point slidably mounted on said guideway, and means controlled by the machine for reciprocating said pricker point in its guideway whereby it is at times projected into the shoe being operated upon. a

4:- A hand method lasting machine, hav ing, in combination, lasting instrumentalities, a bracket, a compound hold down having a part to vertically position the shoe to be operated on and a part to hold the shoe against the outward thrust of such instrumentalities mounted on said bracket, and means for relatively moving said two parts to cause them alternately to become active.

5. A hand method lasting machine, having, in combination, lasting instrumentalities, a device for holding the shoe against the outward thrust of such instrumentalities, means for withdrawing said device from operation while the shoe is fed, and means for adjusting the device bodily in and out relative to said lasting instrumentalities.

6. In a hand method lasting machine, a hold down having a smooth shoe engaging end whereby the shoe may be fed while in contact therewith, a device carried by the hold down for positively engaging the shoe to hold it against the outward thrust of the lasting instrumentalities, and means for advancing and withdrawing said device prior to the lasting and feeding movements respectively.

7. A hand method lasting machine, having, in combination, lasting instrumentalities, a bracket, a compound hold down comprising two separate parts for engaging the shoe by frictional contact only and by penetrating the stock mounted on said bracket, a cam, and operative connections between said cam and said part for penetrating the stock for causing said part to become operative during the lasting operation and inoperative between successive lasting operations.

8. A hand method lasting machine, having, in combination, lasting instrumentalities, a device for holding the shoe against the outward thrust of said instrumentalities, a support having a guideway on which said device is slidably mounted, means for adjusting said support both vertically and in and out relative to said instrumentalities, and means for withdrawing said device in the guideway While the shoe is fed.

9. A hand method lasting machine, having, in combination, lasting instrumentalities, a hold down comprising a member having a smooth engaging end, a guideway and a device mounted on the guideway having asharp shoe engaging end, means for housing the sharp end of said device within the guideway while the shoe is fed, and means for adjusting said member relative to said lasting instrumentalities.

ERASTUS E. WVINKLEY.

Witnesses:

\VARREN G. OGDEN, GEO. E. STEBBINS.

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

' Washington, D. G.