US1867728A - Upper-roughing machine - Google Patents

Description

Julyl9, 1932. w. c. CARD, JR

I UPPER ROUGHING MACHINE Original Filed May 29. 1929 vweutoz 0 abhor/nu Patented July 19, 1932 UNITED STATES PATENT: OFFIC WILLIAM C. CARD, JR., OF WAVERLY, MASSACHUSETTS, ASSIGNOR TO COMPO SHOE MA- CHINERY CORPORATION, OF NEW YORK,N. Y., A CORPORATION OF DELAWARE UPPER-ROUGHING MACHINE Application filed May 29, 1929, Serial No. 366,829. Renewed December 9, 1931.

This invention relates to machinery for manufacturing footwear, and, more particularly, to mechanism for preparing a lasted shoe upper prior to the aflixation of an outer sole thereto by means of adhesive cement.

A general object of the invention is to provide a mechanism by which the lasting allowance of the lasted upper may be uniformly roughed so that the leather or other material of which the lasting allowance is composed will readily accept the adhesive cement and will form a firm union with the outer sole when affixed thereto.

A more specific object of the invention is to provide a roughing machine which will rapidly, uniformly and efliciently rough the lasting allowance of shoe uppers of varied materials, which will be simple and economical of construction, and which will operate with freedom from wear and mechanical difficulties.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a, fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawing, in which:

Figure 1 is a front elevational view of one embodiment of the invention, shown partially broken away;

Fig. 2 is an end elevation of Fig. 1;

Fig. 3 is a detail side elevation, partly broken away, of the roughing element; and

Fig. 4 is a diametrical cross-section of the roughing element.

In the manufacture of footwear, leathers and fabrics having widely different characteristics are used, and when the outer soles are to be affixed thereto by an adhesive cement it is necessary that the lasting allowance of the lasted upper be prepared to receive the adhesive cement and to form a firm union or bond with the outer sole when afiixed thereto.

ing roughing elements may be conveniently mounted upon a horizontal spindle of the bench type, such as is ordinarily used on bench-mounted emery wheels-and the like.

More specifically, the device may comprise a base 10 adapted to be secured to a suitable support, such as a bench 11, a sub-base 12 having bearings 18 in which is mounted a rotatable spindle 14. The spindle 14 may be power-driven in any suitable manner, such as, for example, a belt-pulley 15, in which case it is preferably also provided with an idler-pulley 16 and a belt-guide 17 which is shiftable axially with respect to the spindle 14 on a suitable supported rod 18 by means of a handle 19.

Mounted upon the spindle 14 is a roughing element 20, which will be more particularly described hereinafter and which is preferably enclosed within the housing 21 connected to a suction-pipe 22 and has a removable front plate 23 provided with an opening 24 through which only a portion of the periphery of the roughing element is exposed.

Considered generally, the roughing element 20 comprises a continuous band of outwardlyextending wire bristles, which are resiliently supported with respect to the rotatable spindle 14 whereby, when the pressure is exerted against the ends thereof, they have a limited radial movement, so that they re: siliently press against and uniformly rough the lasting allowance of the lasted upper. More particularly, as is shown in Fig. 4, the roughing element comprises a circular block 25, upon the periphery of which is mounted a plurality of spring-members 26 which at their outer ends resiliently support a continuous band 27 carrying a plurality of outwardly-extending wire bristles 28. The spring-members 26 may be of suflicient strength to give the desired resiliency of themselves, or the block 25 may also be provided-as is shown-with supplemental spring-members 29 of the coil type, which act 5, against the under side of the members 26, in which case the latter may be considered as being pivotally mounted with respect to said block 25.

Although in the drawing and in the above description the rotating spindle 14 has been shown and described as a belt-driven spindle afiixed with respect to a supporting element,

it is to be understood that without departing from the spirit of the invention the spindle 15 may be otherwise driven and need not be aifixed, in which latter case the rotating roughing element may be utilized as a hand tool.

spindle be fixed in order that the lasting allowance of the lasted upper may be held thereagainst in the manner indicated.

It will thus be seen that by means of the present invention there has been provided a device which will rapidly and eificiently perform the desired roughing operations on the lasting allowance of the lasted upper in the manner described above, and since certain changes may be made in the above construction, and difi'erent embodiments of the invention could be made, without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which as a matter of language might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A roughing machine for lasted shoe uppers, comprising, in combination, a rotatable roughing element, meansfor rotating the same, said roughing element comprising a circular block, a circular band disposed circumferentially of said blockand carrying a plurality of outwardly-extending wire ristles; means pivotally mounted peripherally of said block and extending outwardly to said band; and means for resiliently urging said pivotally-mounted members outwardly with respect to said block.

2. A roughing machine for lasted shoe uppers, comprising, in combination, a rotatable roughing element, means for rotating the same, said roughing element comprising a circular block, a circular band disposed circumferentially of said block and carrying a plurality of outwardly-extending wire bristles; leaf-spring members peripherally 65 mounted on said block and extending out- It is preferred, however, that the

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