US1226057A - Toe-centering device. - Google Patents

Description

L. M. BROWN.

TOE CENTERING DEVICE.

APPLICATION men APR-3,1911.

Patented May 15, 1917.

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LOUIS M. BROWN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T UNITED SHOE MACHIN- ERY COMPANY, OF EATER/SON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

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Specification of Letters Patent.

Patented May 15, 1917.

Application fi1ed'Apri13, 1911. Serial No. 618,627.

which the following description, in connection with the accompanying drawings, 1s a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to shoemakmg machinery and particularly to lasting machincry of the bed lasting type in which end embracing wipers are employed for closing a about the end of the shoe and wiping the upper inwardly simultaneously and equally These formed edges and mounted for movement about a center formed 1n their edges and so located that like closing movements 1mparted to the right'and left plates of a pair of wipers having a particular edge forma tion will close them equal dlstances over the margin of the shoe bottom. Th s locatlon obviously differs for shoes ofdifferent shapes or styles of last bottom contour and the wipers for each of these shapes must have their acting edges ground to shape with reference to this center location on the last bottom or sole pattern. In practice a sole pattern which is of the shape of the last bottom is marked by an expert designer at what his eye discovers to be the correct location for the center and then the wiper plates, which are manufactured in blanks, are ground, one to the shape of the'pattern edge at the right of the center mark and the other to the shape at the left of the center mark.

An object of this invention is to provide apparatus for finding, and preferably marking, the center point with mechanical accu- I have ascertained that for such machines as the commercial No. 5 lasting machines in which the shoe is located with the median dine of each end portion in the median line or the line of advance of the cooperating lasting mechanism the required center Incapattern end is placed in and against this fork v and the open feelers are closed and turn the sole toward one side or the other to bring the median line of its end portion into the 1ncdian line of the apparatus. The point on its perimeter which is then intersected by the median line of the apparatus is the mechanically correct pivot point for wipers that are to be made for lasting that end of a shoe on a last of that style. The heel end of a left pattern having its toe end so positioned in the apparatus will be inclined to one side and the heel portion of a right pattern will be oppositely inclined. To make use of this information as to the center location, means is preferably provided for marking the sole or pattern. For this purpose a stamp is pro vided over the point of the end fork and can be worked to make a pressure mark or an incision on the work. The feelers are rolls projecting upwardly through transverse slots in the base and connected by a toggle to an operating slide that is confined against any loose movement laterally.

For machines in which the end of the toe and the end of the heel are each positioned symmetricallywith relation to the median line of the machine and the toe and heel lasting mechanisms advance along that line as in the commercial Ideal and Chase lasters. the sole patterns must be differently marked. The need is, for such patterns, to find the intersection with the periphery of the pattern at the toe and the heel of the median line of the patternas a whole. For this purpose the apparatus comprisesa heel end fork to cooperate with the toe end fork, said forks being arranged for relative movement for different lengths of soles, and each fork is equipped with a stamp to mark the sole at apparatus.

scription of the apparatus in which it is embodied and will then be pointed out in the claims.

Figure 10f the drawings is a perspective view of a machine embodying my invenn;

Fig. 2 is a plan showing different positions for the work and illustrating the feeler operating means;

Fig. 3 is a perspective view of the marking stamp;

Fig. l. shows a sole or sole pattern marked for 1T0. 5 wipers.

The base or body 2 is shown as provided with short cushioned legs to rest on a table and is chambered out to provide space and guideways for the operating means. A table or cover 4 has a smooth top face upon which the toe fork 5 is mounted at one end to slide between gibs', said fork being slotted at 6 to receive an upstanding screw and binding nut to secure the fork in adjusted position when tightened or to allow endwise movement. of the fork when the nut is loosened.

The table a has slots 10 through which rise pins bearing rolls 12 that constitute the feelers. These pins and rolls are mounted on the front ends of levers 14: which are each fulcrumed at its rear end and which are connected by a toggle 15. The toggle members are fastened to an operating slide 16 that is guided in a way in the base in which it so fits that the feelers 12 are actuated without loose movement and symmetrically toward and from the median line of the apparatusin which the angle of the toe fork is also located.

A stamp is erected over the angle of the toe fork and comprises a guide tube 20 in which a plunger 22 is upheld by a spring 23 and guided by a key in a slot in the tube. The spring rests downwardly on a cross pin 24 that has its ends in; the tube and extends through a slot in the plunger. The plunger has a blunt blade end 25 and can be driven down by a blow of the hand on its head to mark asole or pattern as in Fig. 4.

The sole or pattern is placed on the table with its toe'or heel end that is to be'marked for the No. 5 wiper'sin the toe fork 5 as shown in Fig. 2, the feelers being spread or open. The feelers are then closed by the slide 16' and they position the sole laterally until the end portion being operated upon is symmetrically located with relation to the Thisbrings the median line of said end portion into the median line of the apparatus; The stamp is then actuated by a blow of thehand and the sole withdrawn, reversed, andtheother end is similarly positinned by actuation of the feelers and then marked.

The heel fork 26 to be used for marking the heels of patterns for Ideal and Chase lasters is attached to a foot 28 by which it can slide along the median line of the table 1. This heel fork has a stamp like that which is mounted on the ,toe fork.

A sole or sole pattern to be marked for the last mentioned machines is "centered by placing the toe end in thetoe fork .5 and then advancing the heel fork against the heel end of the sole. The stamps will then be actuated and will mark the ends of the median line of the sole or pattern as a whole.

Obviously any functional equivalent for the toe or heel fork may be employed.

The described apparatus is referred to as a toe centering apparatus for the purpose of designation and obviously no limitation is to be implied by so doing and likewise the work is designated as a sole pattern with the intention of covering either a sole or a pattern shaped like'the sole face of a last.

Having explained the nature of this in-' vention and described a preferred embodiment thereof and how it may be used I. claim as newand desire to secure by Letters Patent of the United State's:

1'. Apparatus for finding the centers of the endsof soles having, in combination, a toe receiving fork, a table having the slots 10, the feelers 12 projecting through said slotsand above the surface of the table, the carrier levers- 14: for the feelers, the toggle 15 and the actuator 16 arranged to slide lengthwise of the table to actuate the toggle 15 to produce symmetricalmovement of the feelers together toward and from the middle of the table. 7

2. Apparatusfor finding the center of the toe end of a sole having, in combination a toe receiving'fork, feelers, means whereby they are moved together symmetrically with relation to the center of the fork to position laterally a sole placed'in the toe fork, anda stamp mounted on the toe fork in position to mark the center of the toe when the sole has been so positioned.

3 Apparatus for finding the center of the end of a sole, having, in combination, a toe receiving fork, feelers, means whereby they are moved together symmetrically with relation to the center of the fork to position laterally a sole placed in the toe fork, and a marker arranged with relation to the fork to place a mark on the sole at the'center of the periphery of the toe.

4:. Apparatus for finding the center of the end of a sole having in combination, a toe receiving fork, feelers, means whereby they are moved together symmetrically with retherein against turning movement, and a marking blade on the lower end of the plunger to make a, line extending from the center of the tip of the sole rearwardly in the median line of the sole.

5. An apparatus for finding the center of the end of a sole, having, in combination, a table for supporting a sole, a toe receiving fork, a heel centering fork, one of said forks being adjustable relatively to the other lengthwise of the table to center a sole, and a stamp associated With the too fork forv marking the edge center of the toe of the sole. Y

6. An apparatus for finding the centers of the ends of soles, having, in combination, a sole support, a toe receiving fork, a heel centering fork, said forks being adjustable lengthwise of the support in a definite relation to one another to center a sole, and stamps associated With the toe and heel forks to mark the centers of the two ends of the sole.

7. Apparatus for finding the centers of the ends of soles having, in combination, a toe receiving fork, a heel centering fork, a table upon Which the forks are mounted and which is adapted to support the sole, said table having a guideway in which movement of one of the forks is directed toward and from the other in a prescribed direction and a marker mounted on each of said forks for marking the center of each end of the sole.

8. Apparatus for locating, and marking, the center of the tip of sole; said apparatus oomprislng a tip receiving fork; a marker associated with said fork; and means, mov

able relatively to said fork, for engagement with, and location of, said sole, in position for operation by said marker upon the center of the tip of said sole, Whether said sole he a right or left, and irrespective of axial variations.

9. An apparatus for ascertaining and indicating the point of intersection of the longitudinal median line of an end portion of a sole With the perimeter of the sole comprising centering means engaging the end and both sides of the sole for ascertaining the point and marking means for indicating the point.

10. Apparatus of the class described, having, in combination, forks constructed to center the ends of a sole for ascertaining the point of intersection of the longitudinal median line of the sole With the perimeter of the sole at its tWo ends, and means mounted on the forks for marking the points of intersection upon the ends of the sole.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

LOUIS M. BROWN.

Witnesses:

CHESTER E. Roenns, LAURA M. Goonnrocn.

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

' Washington, D. G.

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