US1121736A

US1121736A - Wire-rope coupling.

Info

Publication number: US1121736A
Application number: US85130014A
Authority: US
Inventors: James G Lee; Charles C Sunderland
Original assignee: ROEBLINGS JOHN A SONS CO
Current assignee: JOHN A ROEBLING'S SONS Co; ROEBLINGS JOHN A SONS CO
Priority date: 1914-07-16
Filing date: 1914-07-16
Publication date: 1914-12-22
Anticipated expiration: 1931-12-22

Description

J. G. LEE S C. C. SUNDERLAND.

WIRE ROPE UOUPLING. iwmumwx FILED JluLYls, 191+ Patented Dec. 22, 1914.

SATES AN EFCE.

JAMES G. LEE AND CHARLES C. SUNDERLND, 0F TRENTON, JERSEY, ASSIGNORS TO JOHN A. ROEBLINGS SONS COMPANY, OF TRENTON, NEW JERSEY, A CORPORA- TION OF NEW JERSEY.

WIRE-ROPE COUPLING.

Specification of Letters Patent. Patented Dec. 22, 1914,

Application filed July 16, 1914. Serial No. 851,300.

To aZZ ywhom it may concern Be it known that we, JAMES G. Len and CHAnLrs C. St'x'ornnxxn, citizens of the United States, residing at Trenton, county of Mercer, and State of New Jersey, have invented certain new and useful Improve4 ments in Tire-Rope Couplings, fully described and represented in the following specification and the accoiiniuinyiiig drawings, forming a part of the same.

T his invention relates to an improved coupling intended particularly for small wire ropes or cords having a fiber covering, usually braided or woven. the especial object of the invention being to provide an efeient and durable coupling for bell-cords and similar' cords running over small pulleys, in which great flexibility is required and it is important to avoid undue wear on the fiber covering of the wire. y

In the Aaccompanying drawing forming. a part of this specification there is shown, for purposes of illustration, a portion of a bellcord with a coupling embodying all the features of the invention in their preferred form, and this construction will now be der scribed in detail, and the features forming the invention then specifically pointed out in the claims.

In the drawing-Figurel is a side view of the cord and coupling, and Fig. 2 is a similar View on an enlarged scale taken ai right angles to Fig. 1, and with the coupling in section.

Referring 'to the drawing, a is the wire rope or center' of the bell-cord, and b a braided thread cover. The coupling con- 'sists of the sockets c, screw-threaded at one end to'receive the cover o and having the coned recess 2 at the other end receiving the wire center o, this end of the socket also being threaded outside at 3 to enter the cap (Z. rThe cap is screw-threaded at 4 to receive the socket, and carries eye e which preferably is formed of a wire inserted through end openings in the cap (Z and headed down inside the cap by a die, or otherwise, as shown. rThe socket, cap and eye forming the two coupling pieces are the same at both ends of the cord to be coupled, so that the above description and references apply to both.

bility and durability than ordinary solidwire links, but links of any other suitable form and construction may be used. The gromets and eyes c are preferably made of high carbon steel for strength and long life of the coupling. These bell-cordsI must operate over very small pulleys and, in addition to such a link connection as to give great flexibility, it is desirable to reduce the bend of the cord where it enters the sockets c as far as possible, and for this purpose the Caps (Z are coned or tapered on the outside, as shown at 5 in the drawing, thus increasing largely the life of the bellecord. i

The method of applying the coupling will be understood from a brief description in connection with the drawing: The braided cover b is removed from the ends of the cord, together with the cotton center usually employed, and the strands and the wires of the strands forming the rope center a are separated and spread out evenly, and then they are gathered together and passe through the sockets c, and the sockets screwed on over braided covers b. rThe wires are then spread out to cone-shape in the coned the cover Z1, preferably by pinching in or crimping the sockets to form crimps 6, preferably both at the outer end of the socket and midway of its screw-threads, so as to grip the braided cover Z). This is especially desirable because the cords will vary in diameter. The caps CZ are then screwed on the ends of the sockets, solder being preferably run in around the threads so as to lock the caps to the sockets. although other suitable means for locking the caps may be used. It will be understood that the two caps CZ, (l, with their eyes c, are connected by the gromet or other link connection f, before the sockets are connected to the caps.

What we claim is: 1. A coupling for covered wire rope or cord, consisting of sockets screwing onto the cover of the rope and having recesses in which the wire centers are spread and secured, and caps screwing onto the sockets and provided with eyes having a flexible link connection.

2. A coupling for covered wire rope or cord, consisting of sockets screwing onto the cover ofthe rope .and having recesses in which the wire centers are spread and secured, caps screwing onto the sockets and provided with eyes, and a wire rope gromet connection between said eyes.

3. A. Acoupling forcovered wire rope or cord, consisting of sockets screwing onto the cover of the rope and having recesses in which the wire centers are spread' and secured, and caps screwing onto the sockets `and provided with eyes having a exible y linky connection,'said caps having their outside surfaces tapering inward toward the sockets to reduce the bend of the rope where it enters the sockets in running over pulleys.

In testimony whereof, we have hereunto set our hands, in thepresence of two subscribing witnesses.

Witnesses:

ANATIN C. CooLEY, RAYMOND APPLEGATE.