US1923802A - Racket press - Google Patents

Description

Aug. 22, 1933. 1,923,802

RACKET PRES S Filed Nov. 4, 1932 Patented Aug. 22, 1933 .frs'rss PATET FFEQE Application November 4, 1932, Serial No. 641,289, and in Germany November 30, 1931 Claims.

This invention relates to a racket press which, in contra-distinction to the known double-sided presses, is only one sided. The ends of the four legs, or of two pairs of legs respectively, which 5 are turnably connected with one another in their a middle portions, terminate in one and the same plane whereby a uniform support upon the racket frame is rendered possible. Each of the four ends of said legs is equipped with a clamping member that is guided in a slot provided in the frontal end face of the leg and extends at right angles with respect to the axis of the same, and means are provided to draw said clamping members towards the said arms or, more precisely, against the frame of the racket inserted into the press, so that twisting of the racket frame is perfectly prevented.

The invention is illustrated diagrammatically and by way of example on the accompanying 2Q drawing, on which Figure 1 is a plan of the racket press in its position for use. Figure 2 shows the press collapsed. Figure 3 is partly a side-view of, and partly a vertical longitudinal section through, the end portion of one of the legs of the press, and Figure 4 is an end-view of one of said legs, this figure showing, besides, a modification.

Ihe press consists of the four legs a, b, c and d, which forms two pairs (at, c and '0, d) that cross one another in their middle portions where they are movably connected with one another by means of a bolt or pivot e. In the end face of each leg is a guide slot (a Fig. 3) which extends at right angles with respect to the axis of the leg and in which a clamping member (f, g, h, i) is movable. The body of the member y (Fig. 3) has two extensions f, f, of which engages said guide s1ot, where'as 1 extends in the direction to the bolt or pivot e (Figs. 1 and 2) and is so so much removed from the appertaining leg that the racket frame can be inserted into the gap. The other three clamping members are of accurately the same design. The legs and the clamping members are connected with one another by knurled screws 1c, 2, m, n by means of which the clamping portions proper (f') of the said clamping members can be drawn towards the legs, or against the racket frame (not shown) respectively. The press is used as follows:

The press is laid in collapsed state upon the racket in such a position that the clamping memhers (f, g, h, 2') are directed downwardly, where'- after the legs are so turned that the clamping members engage the racket frame, and now the clamping members are drawn fast against the racket frame by the screws in, Z, m, n, wherewith the operation is finished.

It is advisable to attach the clamping members to the legs of the racket press in such a manner that they cannot get lost when no racket is in the press. A suitably designed constructional form is shown in Fig. 4, in which the guide extension 1" of the clamping member is enlarged at its free end 1, and the guide slot is correspondingly 5 enlarged at a so that the enlargement f can i enter into the enlargement a but cannot be moved further downwardly so that it is prevented from leaving the arm a in the direction of the screw is. The other arm ends may be designed, of course, in just the same manner, as is indicated by the reference letters in the brackets.

I wish it to be understood that I do not limit myself merely to the details of the racket press, as shown solely by way of example. In the details departures are possible which are not also departures from the invention. Thus, for instance, instead of the screws is, Z, m and n equivalent members, for instance lever closures, may be used.

I claim:

1. An articulated racket press, comprising, in combination, a cross, the ends of the legs of which lie in one plane and are provided with guide slots; clamping members guided in said slots, and means for moving said clamping members in said slots.

2. An articulated racket press, comprising, in combination, a cross, the ends of the legs of which lie in one plane and are provided with guide slots; clamping members guided in said slots, and means for adjusting said clamping members in said slots and holding them fast in their adjusted position.

3. An articulated racket press, comprising, in combination, a cross, the ends of the legs of which lie in one plane and are provided with guide slots in their frontal end faces, said slots extending at right angles with respect to the axes of said legs; adjustable clamping members in said slots, and means for adjusting said members in said slots and holding them fast in their adjusted position.

4. An articulated racket press, comprising, in combination, a pair of crossed and turnably connected legs; a guide slot in the frontal end face of each leg, said slot extending at right angles with respect to the axis of the appe taining leg; an adjustable clamping member in each slot, and

means for shifting said member in the slot and holding it fast in its clamping position.

5. An articulated racket press, comprising, in combination, a pair of crossed and turnably con- 5 nected legs adapted to be collapsed; a guide slot in the frontal end face of each leg, said slot extending at right angles with respect to the axis of rezasoz

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