US1314385A

US1314385A - Work-support

Info

Publication number: US1314385A
Authority: US
Publication date: 1919-08-26
Anticipated expiration: 1936-08-26

Description

C. C. BLAKE. WORK SUPPORT. APPLICATION FILED NOV. 4. 19:5.

Patented Aug. 26, 1919.

2 SHEETSSHEET I.

I; E 2% a 'rl-n: COLUMBIA PLANOURAPN c0., WASHINGTON, n. c.

C. C. BLAKE. WORK SUPPORT. APPLICATION FILED NOV. 4. l9l5.

Patented Aug. 26,1919.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT o EicE.

CHARLES c. BLAKE, or BEooKLIN MASSACHUSETTS, ASSIGNOR To c. c. BLAKE, INCORPORATED, 013 BOSTON, MASSACHUSETTS, A CORPORATION or NEW YORK.

WORK-SUPPORT.

Brookline, in. the county of Norfolk and State of Massachusetts, have invented-a new and useful Improvement in Work-Supports,

of which the followingis a specification.

The present invention relates to work supports, and more particularly to work supports for use in automatic shoe machines.

In the automatic shoe machines which are used in the'manufacture of the welt shoe devisedby me the-work is carried. upon a leader which is fed longitudinally to transfer the point of operation of the tool around the work and which is automatically shifted laterally during its feed longitudinally to maintain the edge of the work adjacent the operating tool in the line of feed. It is highly desirable that the same leader used in the earliest shoe bottoming operation on one shoe should be used in the subsequent shoe bottoming operations on the same shoe.

' -As some of these machines operate before and others after the application of the toe box to the toe end of the insolehheretofore,

. it has beenconsidered impracticable :to employ the same leader in the various automatic'shoe bottomingmachines. The chief difliculty encountered is that a leader con- 'structed for use in a shoe bottoming operation prior to the application of the toe-box to the toe end of the insole will cause the outseam to encroach on the inseam inthe outsole stitching operation. 1

The object of the present invention; is to provide means whereby the same leader may be used in the automatic machines for per: forming operations both prior and subses. quent to the application of the toe-box to M the toe end of the insole. To the accomplishment of this object, and

such others as may hereinafter appear, the" I features of the invention relate to certain devices, combinationsjand arrangements off parts hereinafter described and then set forth broadly and in detail in the appended claims, which possess advaiitages. readily apparent to ,those skilled in theart.

vention will be best understood from an linspection of the accompanying drawings the leader.

The various features of the present in Patented Am. 26, 1919.

I Application'filed November 4,1915. Serial No. 59,654.

illustrating-the best form of the invention at present known to the inventor, in which, Figure 11 is an elevation, partly in sec- 1 tion, of, the work mounted in position upon a leader; I

I Fig. 2 a diagrammatic plan illustrating the relation between the edge of the last bottom andthe guiding flange on the leader;

and

3 is a plan 'ofthe jack'mounted upon In the illustrated upon the bottom of which an insole 6 is secured. Toithe edge face of theinsole 6. an upper 7, having the toe-box withinit, is lasted in accordance with the method describedin the applicationfor Letters Patent of the United States filed by me April li,

1915, Serial No. 21,423. A M p In -order that the leader may properly guide the shoe or the partsv therefor for the operation ofthe operating tool or tools, in

p the automatic machine the inside face of the guiding flange, indicated at 8 (Figs. 1 and 2) has a definite relation to the edge of the lasted f shoe. When thelast and insole are first: positioned on the leader the projections of the edge of the last or insole at the-sides thereof upon the plane of the leader coincide with the face 8. At the toeof the last orinsole the projections ofthe edge of the last or insole upon the plane of the leader fall within the guiding flange. This variation is for the accommodation of the toe-box which is applied to the toe end Of the insole. during the lasting operation. When the upper 7, having the toe-box within it, is laste'd, to the edge face of the insole,

in accordance with the method of lasting -practised by me, the projections of the edge 0f the upper adjacent the edge face of the insole .uponthe plane of the leader, will coincide with the inside face 8 of the guidingflange throughout its length. 1 Statedin embodiment ofthe in- A vent1on the lasted shoe, hereinafter called for convenience the f shoe, is mounted on a another way, the projections upon the plane of the leader of the outside edge of the toebox secured in position against the toe end of the insole will coincide with the face 8 of the guiding flange at the toe of the leader. The shoe is mounted on a spindle 9 and a saddle 10. The spindle 9 is secured to a boss 11 (Fig. 3) formed in a plate 12 carried by two vertical plates 13 rising from a base 14. The saddle 10 consists of a pad of yielding material mounted upon the upper end of a chambered post 15. The post 15 is mounted upon a standard 16 and is guided to slide vertically therein by a screw 17 which is arranged to engage a slot 18 formed in the post 15. The saddle 10 is normally held elevated by a coiled spring 19 which is interposed between the bottom of the standard 16 and the top chamber in the post 15. To permit the saddle to be forced upwardly to jack the shoe the post 15 carries a rack 20 which, when the saddle is under the influence of the spring 19, registers with an opening 21 formed in a worm 22. This worm is mounted in a housing 23 on a vertical shaft 24 j ournaled in the standard 16, and is provided with a handle 25 by means of which the operative may engage the worm with the rack 20 and force the saddle 10 upwardly to jack the shoe. To permit the jack to accommodate different sizes of shoes the standard 16 is mounted to slide in ways 26 formed on the plates 13. The base 14: is provided with a frame 27 (Fig. 3) projecting laterally on both sides thereof. The frame 27 is provided with a pair of runners 28 which extend downwardly to the plane of the bottom of the guiding flange 3.

In order to permit the last 5 to be originally positioned properly with relation to the leader 2 the leader is provided with a pair of button-hole slots (Fig. 1) which receive headed bolts 30 carried by the base 14-, of the jack. WVith this construction the jack may be placed upon the leader by passing the heads of the bolts 30 through the large ends of the button-hole slots 29. The jack is then shifted on the leader until the last is centrally located with relation to the guiding flange on the leader. This movement of the jack brings the shanks of the bolts within the small ends of the buttonhole slots 29. To clamp the jack to the leader the ends of the shanks of the bolts are provided with pins 31 which are engaged by the opposite ends of a leaf spring 32 arranged to embrace the shanks of the bolts. The spring is bowed to exert clamping pressure upon the bolts and thus clamp the jack to the leader by a triangular cam 33 I secured to a shaft 341- journaled in the .plates 13 and actuated through a handle 35 (Fig.

3) carried by the shaft. The base 14 carries 65 a pair of pins 36 which act as fulcrums for the leaf spring 32 during the bowing thereof.

The leader 2 is also provided with a cam face 37 (Fig. 1). When the leader is used in the automatic shoe machines which perform operations on the work before the application of the toe-box thereto this cam face 37 operates to shift the tool transversely of the feed to accommodate for the toe-box variation in the guiding flange of the leader. In the automatic shoe machines which perform operations subsequent to the application of the toe-box to the shoe .the cam face 37 has no function. Consequently the guiding flange operates to transfer the point of operation of the tool at a uniform distance from the outside edge of the toe-box in passing around the toe of the shoe. Therefore this construction provides for the maintenance of a predetermined distance between the inseam and the outseam around the toe of the shoe a result heretofore con sidered impracticable.

It Will be clear to those skilled in this art, and with the general objects of the present invention in View, that changes may be made in the details of structure, the described and illustrated embodiment thereof being intended as an exploitation of its underlying essentials, the features whereof are definitely stated in their true scope in the claims herewith.

lVhat is claimed as new, is

1. A work support, having, in combina tion, a support for a last, and a leader connected to the support provided with a guiding flange which is so arranged relatively to the last on the support that the projections of the edge of the last at the sides thereof upon the plane of the leader coincide with the guiding flange and the projections of the edge of the last at the toe thereof upon the plane of the leader fall within the guiding flange, substantially as described.

2. A work support, having, in combination, a support for a lasted shoe, and a leader connected to the support provided with a guiding flange which is so arranged relatively to the lasted shoe on the support that the projections of the edge of the upper 15 adjacent the edge face of the insole upon the plane of the leader coincide with the guiding flange, substantially as described.

3. A work support, having, in combination, a support for a lasted shoe, and a leader connected to the support provided with a guiding flange which is so arranged relatively to the support for the lasted shoe that the projections of the outside edge of the toe-box positioned against the toe end of the 12 5 insole coincide with the guiding flange of the leader at the toe thereof, substantially as described.

1. A work support, having, in combination, a sole support, and a leader connected 1 to the support provided with a guiding ing flange, the area between the guiding flange which is so arranged relatively to flange and the line through the projections 10 the sole on the support that the projections inside the guiding flange equaling the cross of the edge of the sole at the sides thereof sectional area in the plane of the sole of 9. upon the plane of the leader coincide with toe box positioned against the toe end of the guiding flange and the projections of the sole on the support.

the edge of the sole at the toe thereof upon the plane of the leader fall within the guid- CHARLES C. BLAKE.

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

Washington, D. C.