US1374304A - Work-holder for small presses - Google Patents

Description

G. N. LINK. WORK HOLDER FO R SMALL PRESSES.

APPLICATION FILED MAY 7. 1919.

Patented Apr. 12, 1921.

2 SHEETSSHEET I.

G. N. LINK.

WORK HOLDER FOR SMALL PRESSES.

APPLICATION FILED MAY], 1919.

Patented Apr. 12, 1921.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFIQE.

GEORGE N. LINK, OF NORWOOD, OHIO, ASSIGNOR TO THE AMERICAN LAUNDRY MACHINERY COMPANY, OF NOR'WOOD, OHIO, A CCRPORA'IION OF OHIO.

WORK-HOLDER FOR SMALL PRESSES.

Application filed May 7, 1919.

To all whom it may concern:

Be it known that I, Gnonen N. LINK, a citizen of the United States, residing at Norwood, in the county of 'I-Iamilton and State of Ohio, have invented certain new and useful Improvements in ork-Holders for Small Presses, of which the following is a specification.

This invention relates to pressing machines such as are used for pressing cuffs or other portions of wearing apparel or other articles.

The invention has particular relation to that class of presses in which the lower pressing member or bed is held against horizontal movement and is moved upwardly into and out of cooperating pressing rela tion with a stationary upper pressing member or head. In such presses the lower pressing member sometimes is provided with a work holding plate or table, whichniay be padded, and which ishorizontally movable upon or with relation to the lower pressing member, its purpose being to enable the work holding surface to be pulled out forwardly away from registering relation with the pressing members, thereby to enable the work to be readily applied to or arranged upon the work holding surface.

The object of the present invention is to provide simple means for automatically ad vancing or throwing outwardly the work holding table when the press is opened or released, to thereby avoid the necessity for hand operation and saving the operators time.

A further object of the invention is to provide mechanism of the class described which operates satisfactorily notwithstanding the vertical movement of the lower pressing member, and in which the workholding surface, while horizontally movable automatically, as before described, nevertheless follows the vertically moving pressing member during its vertical movement and is advanced automatically, as before stated.

Further objects of the invention are in part obvious and in part will appear more in detail hereinafter.

In the drawings, which represent one suitable embodiment of the invention, Figure 1 is a side elevation; Fig. 2 is a front elevation of the upper portion of the press; and

Specification of Letters Patent.

Patented Apr. 12, 1921.

Serial No. 295,284.

Fig 3 is a sectional elevation on the line 3-3, Fig. 2, with the press open.

The particular form and arrangement of the pressing surfaces are of course designed with reference to the particular work the press is to perform and may be varied considerably. So far as description is necessary for the purposes of the present application the press comprises a suitable frame 1 carrying a stationary upper pressing member or head 2, which may be a hollow member heated by steam or from any other suitable source of heat and having a plain lower pressing surface. Beneath said head is a vertically movable lower pressing member or bed 3 carried at the upper end of a post 4 movable vertically in guides on the frame. Said bed may be heated in the same manner described in said application or in any other manner, as desired. On said rod 4 is an adjustable collar 5 forming an abutment lying above a compression spring 6 seated against a stationary abutment 7 on the frame and serving to cushion the blow of.

the falling press bed. Vertical movement of the bed is secured by actuation of the treadle 8 pivoted at 9 on the frame and whose vertical arm 10 is pivotally connected by a link 11 to the lower end of the rod 4. Arm 10 and link 11 form a toggle the opening and closing movement of which causes or permits falling or rising movement of the press bed. 12 represents the release treadle pivoted at 18 on the frame and provided with an arm 14 lying beneath the treadle 8, as is usual.

On theupper surface of the bed 3 is a work receiving member or table 15, comprising a metal plate closely fitting the work holding bed and having a padded upper surface 15 Said work holding member conforms in shape to the pressing surface of the head 2 and is connected to a front plate 16 attached to a rod 17 having horizontal sliding motion through an opening 18 in the bed 3. Said rod 17 at its front end is provided with a handle 19, and at its rear end has a head 20 forming a shoulder 21 which abuts the rear face of the bed 3 when the work holder is pulled forwardly and thereby limits its forward motion.

Head 20 is pivotally connected to the upper end of a long link 22 which in turn is pivotally connected at its lower end by a short link 23 to the stationary frame. In-

termediate its ends link 22 has connected thereto a tension spring 24 whose opposite end is attached to a stationary part of the frame as at 25.

The operation is as follows:

Fig. 3 represents the normal positions of the parts. The press is open, the pressing bed is in its lowest position, and the work table is advanced away from registering relation with the upper pressing member. The operator lays the work on the work table and arranges the same, and then by means of the handle 19 pushes the work table rearwardly against the tension of spring 2a until it registers with the pressing head. While holding the work table in thls position the treadle 8 is depressed to elevate the bed and bring the Work table and the work thereon into pressing relation with the head. As is'usual in these presses the toggle mechanism moves a little beyond dead center and locks in' closed position. Pressing relation is maintained for a sufficient length of time and then the release treadle is depressed. This opens the press and the bed drops. As soon as the pressure is released the spring 24 becomes effective and through the link 22 and rod 17 advances the work table outwardly to its normal position shown in Fig. 3, whereupon the pressed work can be removed and new work applied for the next operation.

The mechanism is simple and can be applied at low cost not only to new machines but also to machines already in use.

What I claim is:

1. A pressing machine, comprising a stationary pressing head, a cooperating bed vertically movable beneath the same, a work holding table horizontally movable on said bed, and yielding means normally advancing said table to its forward position.

2. A pressing machine, comprising a stationary pressing head, a cooperating bed Vertically movable beneath the same, a work holding table movable relatively to said bed into and out of registering relation with said head, and yielding means normally movingsaid table to said latter position.

3. A pressing machine, comprising a stationary pressing head, a cooperating bed vertically movable beneath the same, a work holding table horizontally movable on said bed, and a spring operatively connected to said table and tending to move the same out of pressing relation with said head.

4. A pressing machine, comprising a stationary pressing head, a cooperating bed vertically movable beneath the same, a work holding table horizontally movable on said bed, links connecting said table to a fixed point, and a spring eifective upon one of said links and tending to advance said work table.

In testimony whereof I aflix my signature.

GEORGE N. LINK.

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