US467815A

US467815A - Lineman s wire-grip

Info

Publication number: US467815A
Authority: US
Publication date: 1892-01-26
Anticipated expiration: 1909-01-26

Description

(No Model.)

T P mm w .w N m 0E N I L UNITED STATES PATENT OFFICE.

CHARLES A. KENT, OF BEVERLY, MASSACHUSETTS.

LINEMANS WIRE-G RIP.

SPECIFICATION forming part of Letters Patent No. l6*7,815, dated January 26, 1892.

Application filed May 22, 1891. Serial No. 393,687. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES A. KENT, a citizen of the United States, and a resident of Beverly, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Linemens ire-Grips, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention has for its object to provide a novel, simple, efficient, and economical implement for the purpose of stretching telegraph or other electric or fence wires; and to this end it consists in the features of construction and the combination or arrangement of devices hereinafter described and claimed, reference being made to the accompanying drawings, in which Figure 1 is a plan view of a wire-grip constructed in accordance with my invention; and Fig. 2 is a sectional view taken on the line 00 as, Fig. 1. y

In order to enable those skilled in the art to make and use myinvention, I will now describe the same in, detail, referring to' the drawings, wherein- The letter A indicates a flattened baseplate provided at one extremity with a slot A and a series of notches, teeth, or serrations A. A rigid jaw 13, having a series of notches, teeth, or serrations B, is arranged across the slotted portion of the base-plate, so that its notches, teeth, or serrations interlock with those of the base-plate. A clamping screw-bolt G extends through the rigid jaw and through the slot in the base-plate, and its screw-threaded extremity is provided with a thumb-nut G for the purpose of tightening the clamping-bolt, and thereby securely locking the rigid jaw in any position to which it may be adjusted relatively to the acting face of a bell-crank jaw C, which is pivoted at its angle to the base-plate through the medium of a pivot-pin a. The boll-crank jaw C is so pivoted as to swing in a plane parallel with the fiat surface of the base-plate for the purpose of gripping awire D, placed between the two jaws. The short arm of the bellcrank jaw O is formed with a bifurcation G to receive loosely the extremity of a lever E, which is pivoted to the extremity of the shanklike portion of the base-plate. The lever E is pivoted intermediate its extremities to the shank-like extension of the base-plate through the medium of a pivot-pin a, and the extremity of the leveropposite the extremity which engages the fork O of the bell-crank jaw is formed or otherwise provided with a loop or eye E to receive a strap or cable F, the 0011- struction and arrangement being such that strain upon the strap or cable will swing the lever E in the direction of the arrow, Fig. 1, and thereby roclg the bell-crank jaw on its pivot in the direction to clamp the wire against the rigid jaw B. By this means ten sion on the strap or cable tends to constantly press the bell-crank jaw into its gripping position, thereby effectually gripping the wire for the purpose of stretching the same. By adjusting the rigid jaw toward or from the acting face of the swinging bell-crank jaw the parts are rendered susceptible of properly acting upon wires of varying diameter or size.

Having thus described my invention, what I claim is 1. A wire-gri p consisting of a flattened baseplate having a shank-like extension and a rigid jaw 13, a bell-crank jaw G, pivoted at its angle to and swinging in a plane parallel with the base-plate and having its short arm provided with a bifurcation O, and a lever E, pivoted intermediate its extremities to the shank-like extension of the base-plate,l1aving one end engaging the bifurcation of the bell-crank jaw and its other end projecting past the extremity of the shank-like extension and having a loop or eye for engaging a strap or cable, so that tension on the latter throws the bell-crank jaw into gripping action, substantially as described.

2. A wire-grip consisting of a flattened baseplate having a shank-like extension, a slot A, and a series of notches or teeth A, an ad justable jaw B, having notches or teeth 13 and provided with a clamping bolt extending through the slot of the base-plate, a bell-crank jaw pivoted at its angle to and swinging in a plane parallel with the baseplate, and a lever E, pivoted intermediate its extremities to the base-plate,havingoneendlooselyengaging the short arm of the bell-crank jaw and its other end projectingpasttheextremityof the shankname to this specification, in the presence of like extension of the base-plate, and provided two subscribing Witnesses, on this 18th day of with a loop or eye for engaging a strap or ca- May, A. D. 1891.

bie, so that tensionon the latter throws the CHARLES A. KENT. 5 bell-crank jaw into gripping action, substan- Witnesses:

tiaiiy as described. ALBAN ANDREN,

In testimony whereof I have signed my HELEN T. ANDREN.