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Publication numberUS256280 A
Publication typeGrant
Publication dateApr 11, 1882
Filing dateDec 31, 1881
Publication numberUS 256280 A, US 256280A, US-A-256280, US256280 A, US256280A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 256280 A
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Description  (OCR text may contain errors)

(No Model.)



No. 256,280. Patented Apr. 11,1882.

W% 4 gg M I wi yiiiii M e My N 5 o}x\ UNITED STATES PATENT OFFICE.



SPECIFICATION formingpart of Letters Patent No. 256,280, dated April 11, 1882. Application filed December 31, 188i. (No model.)

To all whom it may concern:

Be it known that I,FELIX BROWN, a citizen of which the following is a specification.

This invention"relates to couplings for shafting and the like; and it consists in a recessed bodyprovided with clampsandapairofwedges, each having at one end a screw-bolt adapted to receive a tightening-nut, all constructed and arranged as hereinafter more fully described.

' This invention is illustrated in the accompanying drawings, in which Figure 1 is a section in the plane'zz, Fig. 3. Fig. 2 is a section in the plane 3 y,-Fig. 3. Fig. 3 is a section in the plane m w, Fig. l.

' Similar lettersindicate corresponding parts.

In the drawings, the letterA designates the body of the coupling.

(l is the opening for the shafting or axis, which opening is bounded on one side by the body A, while on its other side it is bounded by the clamps B B. These clamps rest with one of their sides against shoulders or recesses in the body A. The free ends of the clamps B are subjected to the action of wedges E, which wedges are provided with orform part of screw-boltsl),onto which nutsFcanbescrewed. These nuts F rest against the faces of the body A and against the outer faces of the clamps B, as shown in 2, and by tightening the nuts F the wedges E are caused to press against the free ends of the clamps B, thus diminishing the size of the opening 0 and firmly clamping the ends ofshafting or of axles that may be placed in said opening. By this arrangement the clamps B, of which there are two, are also prevented from falling out of the body Aorfrom becoming displaced. By unscrewing the nuts F the clamps B and all the parts within the body A can be removed from out of the same, and if any of the parts should break or.

become worn out they can thus be readily replaced.

I am aware that couplings have been made provided with clamps in connection with tightening-screws-as, for example, in the patent of Charlton, No. 126,183, of April 30, 1872; but

the disadvantage of these couplings is that it the clamps should become worn or broken they cannot be taken out and replaced by newones, because these clamps form part of the. body. By my device, on the contrary,.any part which is broken or worn can be removed and replaced in a very short time, saving labor and expense.

What I claim as new, and desire to secure by Letters Patent, is

-1. The combination, in a coupling, of a recessed body with the clamps B, located within the same, and the devices for tightening up the clamps, consisting each of a wedge having atone end a screw-threaded bolt adapted to receive the tightening-nut, substantially as described.

2. The combination, in a coupling, of the recessed body A, with the clamps B, each having a portion of one of its sides resting against a shoulder within the said body, and the devices for tightening up theclamps, each consisting of a wedge applied against one side of the clamps and having at one end a screwthreaded bolt, whereon the tightening-nut is fitted, substantially as described.

' In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6860672 *Feb 7, 2002Mar 1, 2005Kim Yong-KeunReinforcing bar coupling
Cooperative ClassificationF16G11/04