US1175998A - Leather-press. - Google Patents

Description

F. H. SHAW.

LEATHER PRESS.

APPLICATION FILED AUG-5,1915.

Patented Mar. 21, 1 916.

Witnesses a Attorneys FRED H. SHAW, or DALLAS, rnxas.

LEATHER-PRESS.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application filed August 5, 1915. Serial No. 43,848.

To all whom it may concern:

Be. it known that I, FRED H. SHAW, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented a new and useful Leather-Press, of which the following is a specification.

The device forming the subject matter of this application is adapted to be employed in the making of clutch facings.

The invention aims to provide in a device of this type, novel cooperating elements whereby a strip of leather or like material having parallel edges may be distorted to form a strip the edges of which, respectively, are concaved and conveXed.

The invention aims to provide novel means for holding down the strip while the same is being flexed.

Another object of the invention is to provide novel means for moving the clamp and for holding the clamp in adjusted-positions.

It is within the provinceof the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

WVith the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing: Figure 1 shows in top plan, a press constructed in accordance with the present invention; Fig. 2 is a section on the line 22 of Fig. 1; Fig. 3 is a cross section showing a clutch facing adapted to be formed out of a strip distorted in a press constructed in accordance with the present lnvention; Fig. 4 is a plan delineating a strip adapted to be used on the press forming the subject matter of this application, the strip being shown as it will appear prior to being acted upon by the press; Fig. 5 is a plan view diagrammatic in nature and illustrating a strip cut to form a clutch facing of the sort shown in Fig. 3.

In the accompanying drawings the numeral 1 indicates a clutch facing, ordinarily fashioned from leather or like material and of frusto-conical form. Such a facing may be made out of a strip 2, shown in Fig. 5, one edge 3 of the strip being concaved and the other edge 4 of the strip being convened. According to one known process of procedure, the edges 3 and 4 of the strip 2 are cut to the desired curvature, in order that when the ends of the strip 2 are brought together, the clutch facing 1 may appear approximately as shown in Fig. 3. This cutting operation, obviously, results in an appreciable waste of material, and the present invention aims to provide a press which is adapted to work upon a strip 5, the longitudinal edges 6 of which are parallel, the strip being distorted by moving its ends in the direction of the arrows A of Fig. 4, so that the Strip will assume the form of the strip 2, without entailing the waste incident to cutting the edges 3 and 4 to the desired curvature.

The press forming the subject matter of this application embodies a bed 7 of any desired form and carrying an abutment 8. If, as shown in the drawings, the abutment 8 is a separateelement from the bed 7, the abutment may be held to the bed by screws 9 or other suitable fastening means. The inner edge of the abutment 8 is curved to the desired arc and is inclined, undercut or beveled, as shown at 10. Slidable along the bed 7 toward and away from the abutment 8 is a clamp 11, the inner edge of which is curved to conform to the curvature of the inner edge of the abutment 8, the inner edge of the clamp 11 being inclined, undercut or beveled as shown at 12.

Disposed between the clamp 11 and the abutment 8 is a compression member 14, curved to conform to the curvature of the inner edges of the abutment 8 in the clamp 11, the edges of the compression member 14 being beveled to conform to the beveled edges 10 and 12 of the abutment 8 and the clamp 11 respectively. The construction is such that when the clamp 11 is moved toward the abutment 8, the compression member 14 will be prevented from moving upwardly and will be forced downwardly into the strip 5, it being readily seen that when the strip 5 is placed on the bed 7 between the abutment 8 and the clamp 11, the strip, when acted upon by these elements and the compression member 14, will be distorted from the form shown in Fig. 4, into the form shown in Fig. 5, without cutting or trimming the strip. Preferably, the strip (which ordinarily is of leather) is worked in a wet condition, and is allowed to dry in thepress;

Means is provided for moving the'clam'p 11 toward and away from the abutment 8, I and with this end in view, the clamp is sup pliedwith ears 15 carrying pivot elements 16 upon which are mounted arms 17 ofi'set as shown at 18, so that the rear or outer ends of the arms rest on the bed 7, as clearly shown in Fig. 2. The arms 17 may be supplied with handles 19 of any desired construction, to facilitate the operation of the arms and the clamp 11. u

Mounted on the bed 7 near to its rear end is a rib 20 which may be held in place by securingelements 22, the rib being provided with sockets 21, in which the rear ends of the arms 17 are loosely and sl-idably received. The sockets 21 carry gripping means of any desired sort, coiiperating with the arms 17, the gripping means in the present instance being depicted in the form of hand screws 23. The clamp 11 may be advanced toward the abutment 8 to effect the; necessary distortion of the strip 5, the clamp being pushed forwardly by means of the arms 17 and the handles 19. Subsequently,'the hand screws 23 may be tightened down on-the' arms, whereuponthe strip 5 will bebound'firmly in a curvilinear pocket defined by aportion of the bed 7 the abutment 8, the clamp 11 and the compression member 14;

Having thus described the invention, what is claimed is c 1 1. In a device for shaping clutch facings, a bed; an abutment fixed to the bed; a bed supported clamp movable toward and away from the aubtment, the inner edges of the clamp and the abutment being curved; and a compression member located between the abutment and the clamp, the inner edges of the abutment and clamp overhanging the edges of the compression member. I

2. In a device for shaping clutch :facings,

Copies of this patent may be obtained for a bed {an abutment fi'iied to the bed; a bed supported clamp movable toward and away from the abutment, the inner edges of the clampand. the abutment being curved; and

a curved compression member located between the abutment and the clamp, the longitudinal edges of the compression member being beveled, and the inner edges of the fixed to thebed; a clamp slidableon the bed toward and away from the abutment; the

inner edges of the abutment and'the clamp belng curved upon a common radius, and be mg undercut; a compresslon member curved to conformto the curvature of the inner edges of the abutment and the clamp, the edges of thecompressio-n member being beveled to cooperate with the undercut edges of the clamp and the abutment whereby when the clamp is advanced toward the abutment,

the compression member will be moved in a direction substantially at right angles to the direction of advance of the clamp j arms pivotally assembled with the clamp; and slidarms; and screws threadedinto the sockets; the screws being adapted to engage the arms. p v

In testimony that I claim the foregoing as ably received in the sockets; handles on the my own, I have hereto afiixed my signature V in the presence of two witnesses. H V

H FRED H. SHAWV. YVitnesses: 4

W; PADGITT. W; G. PADGI'IT.

jive cents each, by addressing the Commissioner of Patents, Washington; I); G."

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