US1543793A - Work support - Google Patents

Description

June 30, 1925. 1,543,793

w. T. B. ROBERTS WORK SUPPORT Filed Feb. 25, 1923 Fig.2. 2

Patented June 30, 1925.

UNITED STATES v i i-ran PATENT crates.

.WILLIAM THOMAS BUCKINGHAM ROBERTS, OF LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE .WIAGHINERY CORPORATION, OF PATERSON, NEV] JERSEY, A COR- PORATION OF NEW JERSEY.-

WORK SUPPORT.

Application filed February 23, 1923. Serial No. 620,805.

T all whom it may concern:

Be it known that 1, WILLIAM THOMAS BUCKINGHAM Roenn'rs, a subject of the King of England, residing at Leicester, in the county of Leicester, England, have invented certain Improvements in Work Supports, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to work supports and, more particularly, to means for supporting boots and shoes during the operation thereon of one or of a plurality of work-operating instrumentalities.

It is an object of. the invention so to construct and arrange a work support utilized for presenting work to a work-operatin instrumentality that suitable clearance may be provided to facilitate the removal and the positioning of work on the support and the subsequent return of the work support to its final operative position. It is a further object of the invention to provide for movement of the work support into and out of operative position without loss of adjustment of the work support with respect to the work-operating instrumentality and in such manner as to require the very minimum of attention and effort on the part of the operator.

In the illustrative construction there is provided a work supporting horn which is pivotally connected to a. supporting structure so that it may be canted freely relatively to thelatter andwhich may be restored to operativeposition by'movement of the horn relatively to its supporting structure in a lateral direction and finally in a direction toward the supporting structure. Preferably, and in the construction shown, the horn is connected to a carrier block by a pivot pin which permits the born to cant to one side to facilitate the removal or the positioning of work on the horn, there being providedalso on the horn and on its carrier block interlocking parts which locate the horn in operative position and serve to prevent lateral or canting movement thereof so long as the horn is in operative position. Conveniently the. locrting parts for the horn engage by gravity when the horn is canted back to a position where its work supporting tip is in axial alinescribed in the specification and set forth in the appended claims.

In the drawings,

Figure 1 is a front elevation partly in section of one embodiment of the work support; and

Fig. 2 is a side elevation of the same.

In the work support illustrated in the drawings, there is: a fixed horn post 4: upon a reduced upper end portion of which there is mounted to rotate freely, as on a vertical pivot pin 6, a horn carrier block 8, the block being retained in position upon the post through the engagement of aspring pressed plunger 10, housed in the carrier block, with a horizontal, peripheralrecess 12 formed on the pivot pin 6. Conveniently, the plunger has a knurled head 1% to facilitate its retraction against the pressure of the spring 16 when it is desired to remove the horn 18 and its carrier block 8 from the horn post 4:.

For the mounting of the. horn 18 in the carrier block 8 the latter is pr vided with a vertical slot 20 which divides the upper portion of the block into two spaced ears which receive snugly in the oblong space formed bet veen them by the slot a flat portion 24 of the horn 18. A horizontal pivot pin 26 extends through this flat portion 21 of the horn and its ends are received in vertical slots. 28 one in each of the cars 22. Preferably the ends of the pin 26 have their sides flattened, as most clearly shown in Fig. 1, sothat the pin 26 may ride vertically along the sides of the slots QSbut not rotate therein, the central part of the pin serving as a pivot upon which the horn 18 may be canted. As shown, the tops. of the slots 28 are closed by bridge pieces 30 to prevent, except upon removal of the bridge pieces, the pin 26 leaving the slots 28.

Extending from the lower end of the flat portion 24; of the horn is a stud 32 which is arranged coaxially with the clinching sur face 3& at the horn tip and with a workoperating instrumentality such as a fastening driver 36 of a fastening inserting mecha nism of any well known type. hen the horn 18 is in operative position, as shown in full lines in Fig. 1, the stud 32 is received in a corresponding recess in. the carrier block 8. It will be obvious that when it is desired to cant the horn 18 out of operative position it is merely lifted to raise it until the stud 32 is clear of the recess in the carrier block 8, at which time the horn is free to cant about the pin 26 until a fiat face 10 on the horn 18 rests upon a corresponding face 42 on the side of the carrier block 8. It will be understood that, during upward movement of the horn 18 to withdraw the stud 32 from the recessin the carrier block, the pivot pin 26 moves upwardly in the slots 28 and that the said pin then serves as a pivot for the canting movement of the horn. To restore the horn to operative position it is merely canted back into upright position in which the stud 32 engages against an appropriate stop or abutment on the carrier block, such abutment being shown as a pin 14 fixed in the ears 22 of the carrier block. 'lVhen the stud 82 contacts with the abutment ll the horn 18 may be allowed to drop by gravity, the stud 82 entering the recess in the carrier blocir. The horn is thus locked securely to the carrier block against movement in a lateral direction.

In operating upon boots and shoes, as in the insertion of fastenings into the soles or heel portions thereof, the'boot or shoe is positioned upon the horn most conveniently when the horn is in its canted position, as indicated in dotted lines in Fig. 1. As before stated, restoration of the horn to opera tive position is accomplished simply by canting the horn until the stud 32 contacts with the abutment 44:, thus putting a limit to the canting movement which is immediately followed by a movement of the horn downwardly as the stud 82 enters the recess provided therefor in the block 8. g It will be understood that all that the operator does is to cant the horn in the proper direction as far as it will move and that the movement of the horn to locking position is eifected by gravity. With the horn 18 in operative position, the latter may be rotated together with its carrier block 8 during the insertion of successive fastenings into the work. During this rotation of the horn the horn tip 34 is maintained constantly in line with the fastening inserting movements of the driver 36 for reasons which will be obvious upon ref! erence to the description. of the relationship of the supporting structures for the horn. At the end of the operations on each individual piece of work, the horn 18 is lifted and'canted to one side in order to facilitate the removal of the work from the horn. Should it be desired to remove the horn this may be readily accomplished when the latter is in canted position by retracting the spring pressed plunger 14 and then the horn and its carrier block may be readily lifted from the supporting horn post t.

Having thu s'described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening inserting machine, the combination of a driver, a post, a carrier block mounted on the post, a horn pivoted to the carrier block for canting movement to cause the clinching surface of the horn to move into and out of alinement with the driver, and. gravity-operated interlocking parts carried by the horn and its carrier block for retaining the hoinwith its clinchng surface in alinement with the driver.

2. In a work support, a horn post, a horn, a carrier block having a pair of upwardly extending ears mounted on the horn post for rotatably, supporting the horn, each of said ears having an upwardly opening slot, a pivot pin located in said slots and passing through the horn thereby connecting the horn to the carrier block so that the former maybe canted on the latter, interengaging parts below the pivot pin on the horn and on the carrier block for limiting the canting movement of the horn toward operative position, removable means, for preventing the escape of the pivot from said slots, and means, comprising one of said interengaging parts, for locking the horn on its carrier when it has reached operative position.

Intestimony whereof I have signed my name to this specification.

WILLIAM THOMAS BUCKINGHAM ROBERTS.

Images