US1372704A

US1372704A - Cable-clamp

Info

Publication number: US1372704A
Application number: US342227A
Authority: US
Inventors: Benjamin B Lacy
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-12-03
Filing date: 1919-12-03
Publication date: 1921-03-29
Anticipated expiration: 1938-03-29

Description

B. B. LACY.

CABLE CLAMP.

APPLICATION FILED 0503,1919.

1,372,70AD Patented Mar. 29, 11921.

it states BENJAMIN n. LACY, or noos'ron, TEXAS.

CABLE-CLAMP.

rsra roa,

Specification of Letters latent.

Patented Mar. 29, 1921,

Application filed December 3, 1919. Serial No. 342,227.

To all whom it may concern;

Be it known that I, BENJAMIN B. LAoY, a citizen of the United States, and a resident of Houston, in the county of Harris, State of Texas, have invented certain new and useful Improvements in Cable-Clamps, of which the following is a specification.

As heretofore practised, particularly in drilling oil and water wells, and wherea cable is used, a suitable clamp is employed on the rig to hold the cable. When necessary to employ different sized cables, the gripping members of the clamp must be changed accordingly. This change of gripping members, regardless of the time required to make the same, is quite a disadvantage, in that it usually necessitates having the changeable members accessible, which is not always convenient.

The object of the present invention is to so construct the clamp, particularly the gripping members, that it may accommodate cables of different sizes by manipulating the members to change their relative cablereceiving positions.

The preferred embodiment of the inven tion is illustrated in the accompanying drawing, in which- Figure 1 is a plan view or" a clamp, illustrating the application of the invention;

Fig. 2 is a side elevation; and

Fig. 3 is a detail perspective view of one of the gripping members.

Referring now to the drawing by numerals of reference, 5 represents a pair of opposed operating jaws, pivoted tegether as at 6, and having their opposite ends reduced as at 7, one of the ends being provided with a swinging clamping yoke 8, pivoted as at 9,with its opposite end adapted to be swung over the end of the other jaw, and produce a clamping effect of the jaws by means of the pressure screw 10, having a threaded engagement with the yoke 8, as at 11, and with its end 12 bearing against the side of the jaw. Carried by each of the operating jaws 5 are the gripping members 13, comprising relatively long cylinders haying a plurality of cable-receiving and gripping recesses in their sides, whereby, when two opposed recesses are presented in confronting relation, they may grip the cable 15 and positively hold the same against movement. In order to accommodate the clamp to different sized cables, the recesses 14 in the sides of the gripping members 13 are of different sizes; thus, cables of different diameters may be clamped by rotating the members 13 to bring the desired sized recesses in gripping relation with the cable. The members 13 are maintained against rotation by means of set screws 16, carried by the lugs 17 on the jaws 5, and with their ends protruding through the lugs and seated in the relatively small recesses 18 in the web portion of the members 13. Ordinarily, the gripping members 13 may be freely rotated; however, should they stick, means are provided to insure their rotation, which comprises upwardly extending lugs 19 havmg openings 20 made to receive a pin. Thus, it will be seen that by releasing the set screws 16 the members may be rotated to bring the proper cable-receiving recesses into gripping position. As is common in clamps of this kind, suitable rings 21 are employed for suspending the clamp.

Not only is the employment of the gripping members quite an improvement over the effect produced by the conventional type, but they greatly increase the efficiency of the clamp, in that they are always carried by the clamp, thus overcoming the disadvantage of replacing difierent sized ones when cables of different size are employed.

Claims.

1. A cable clamp, comprising a pair of opposed operating aws, gripping members rotatably carried by said jaws and having a plurality of cable gripping recesses, said gripping members being adapted to be rotated to bring two opposed recesses in gripping relation to the cable.

2. A cable clamp, comprising a pair of opposed operatingjaws, gripping members rotatably carriedby said jaws and having a plurality of cable gripping recesses, said recesses being of different dimensions to enable the same to grip different sized cables, said gripping members being adapted to be rotated to bring two opposed recesses in gripping relation to the cable.

3. A cable clamp, comprising a pair of opposed operatin jaws, gripping members carried by said jaws and having a plurality of cable gripping recesses rotatable to bring two opposed recesses in gripping relation to the cable, the recesses in said gripping member being of difi'erent dimensions to adapt the grip to different sized cables, said gripping members being provided with means for holding two opposed recesses in 5 cable gripping position, and means forrotating the members When released by the holding means.

4. A cable clamp such as set forth in claim 8, in which the said holding means comprises a set screw carried by each of the- BENJAMIN B. LACY.