US601454A

US601454A - Clamping-buckle for electric line-wires

Info

Publication number: US601454A
Authority: US
Publication date: 1898-03-29
Anticipated expiration: 1915-03-29

Description

(No Model.)

A. H. WEIKMAN. OLAMPING BUCKLE FOR ELECTRIC LINE WIRES.

No. 601,454. Patented Mar. 29,1898.

INVENT a Zap/db Man A] M UNITED STATES PATENT OFFICE.

AUGUSTUS H. W'EIKMAN, OF PALMYRA, NElV JERSEY.

CLAMPlNG-BUCKLE FOR ELECTRIC LINE-WIRES.

SPECIFICATION forming part of Letters Patent NO. 601,454, dated March 29, 1898.

Application filed December 8, 1897. Serial No- 66l,194;. (No model.)

To all whom it may concern.-

Be it known that I, AUGUSTUS H. WEIKMAN, a citizen of the United States, residing at Palmyra, in the county of Burlington and State of New Jersey, have invented certain new and useful Improvements in Clamping-Buckles for Electric Line-\Vires; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof as to enable others skilled in the art to. make and use the said invention.

This invention relates to the fastening of electric line-wires to insulating-supports, and has for its object the easy and expeditious fastening of such wires by securely clamping them to the insulators by clamping-buckles which depend for their hold upon the elastic reaction of their parts as made by machine and do not require any exercise of skill or discretion on the part of the lineman.

To this end this invention consists of an elastic frame containing fulcrum-eyes and arranged to partially encircle the groove or neck of the insulating-knob and terminating in hooks which project upwardly when applied to use, a bail-lever pivotally secured in said fulcrum-eyes, a clamping-bail pivotally secured in said lever-bail and arranged to draw a line-Wire placed in said hooks and bend the line-wire downward upon each side of the hooks and partially into the groove of the insulator, and a latching-plate to guard the lever-bail from being accidentally lifted and released.

The construction and operation of this device arehereinafter full y described, and shown in the accompanying drawings, in which- Figure 1 shows a plan of the invention as applied to an insulated line-wire. Fig. 2 is a side elevation thereof. Fig. 3 is an elevation on the line-wire side. Fig. 4 is an elevation on the opposite side. Fig. 5 is a detached plan view of the fulcrum-wire. Figs. 6 and 7 are detached plan views of modified forms thereof. Fig. 8 is a detached plan view of a clamping-bail, and Figs. 9 and 10 are like views of modified forms thereof.

Referring to the drawings, 1 represents a glass or earthenware insulating-knob of any of the usual constructions having a circumferential groove 2 in it and which may vary somewhat in diameter and satisfactorily fit the clam p owing to the elastic feature thereof.

3 is a fulcrunrwire partially encircling the knob 1 in the groove 2 and terminating in upwardly-turned hooks et. In the fulcrum-wire 3 are formed eyes 5, into which the pivots 8 of the clamping-lever 9 fit. Between the eyes 5 in the fulcrum-wire 3 there is formed a spring 6, as shown in Figs. 1, 2, 3, 4E, and 5. This is helical in shape, as shown in Fig. 6, of a serpentine form, and, as shown in Fig. 7, it is of a curl or single return curve of the wire, the object being to permit the wire 3 to spread sufficiently (without acquiring a permanent set) to be placed over the knob into the groove 2 and, further, to adapt it to variations in the diameter of the knobs and by its elastic reaction to maintain a firm and 0011- stant hold in the groove 2 of the knob 1.

9 is the clamping-lever, formed with a bow '7, pivots S at the ends fitting into and turning in the eyes 5, and with eyes 10 formed in it, into which are fitted the pivots 11 of the clamping-bail 12.

The clamping-bail 12, as shown in Figs. 1, 2, 3, 4, and 8, is formed with bends 13 and 14: in it, which impart elasticity, and, as shown in Figs. 9 and 10, such elasticity is augmented by returning curves or curls 16, formed in it.

A curved latch 17 is attached pivotally to the center of the bow 7 of the clamping-lever 9, and the end is pressed under the central part or spring 6 of the fulcrum-wire when the buckle is clamped in use. The latch 17 can be omitted.

The upwardly-turned hooks 4 are not indispensable for holding the wire, but are a considerable facility in stringing the wire before clamping. They may be stopped off at the line marked 20 in Fig. 2.

To apply this device to use, the knob 1 is assumed to be erected on a pin or plug. The fulcrum-wire 3 is placed in the groove 2, with the hooks 4 turned upward on the side in which it is intended to place the line-wire 18, which is placed in the position shown in dot ted line in Fig. 2. The lever 9 is raised and the bail 12 is placed in the position shown in dotted lines in Fig. 2. The lever 9 and bail 12 are then brought into position, as shown in full lines in Figs. 1, 2, 3, and at. Then the central part of the bail-wire, passing under the hooks 4 and above the linewire 1S, bends the line-wire 18 down over the inside of the hooks and draws it closely to the knob 1. In so doing the line-wire 18 bends downwardly over the outer side of each hook 4 and presses the hooks at toward each other. The elastic part of the fulcrum-wire 3, stretching in this operation, reacts elastically and holds the

wires

18 and 3 firmly on the knob 1, and the latch 17 is then turned upwardly and hooked under the central part of the fulcrum-wire 3 to prevent the fulcrum-wire 3 from being accidentally lifted. The angle of the bail-wire and lever-wire pivots relatively to the line wire and hooks 4- is such that the elastic reaction of these parts, after being clamped, tends to retain them in clamped position.

13y reason of the construction of this device, when made by automatic machinery, it becomes very cheap of production and demands no exercise of skill or discretion in its application and is quickly applied and easily released without waste of parts or injury to the line-wire and therefore improves the durability and quality and lessens the cost of line-wire erection.

Having described my invention, what I claim is 1. In a buckle for attaching electric linewircs to insulators, the elastic fulcrum-wire adapted to embrace an insulator and having open projecting ends, in combination with a lever pivotally connected therewith, and a clamping-bail adapted to bend the line-wire over the projecting ends of the fulcrum-wire, and bind the line-wire to the insulator substantially as set forth.

2. In a buckle for attaching electric linewires to insulating-knobs, the elastic fulcrum-wire 3, provided with pivot-eyes and projecting hooks 4, the lever 9 pivotally attached thereto, the bail-wire 12, pivotally attached to the lever in combination with the latch 17, all constructed and arranged to operate as shown and described.

3. In a clamping-buckle for securing electric line-wires to insulators, the elastic fulcrum-wire 3 provided with pivot-eyes 5, an elastic portion intermediate with said pivoteyes, and parallel hooked ends 4-, and alever 9, having; terminal pivots 8, and pivotal eyes 10, in combination with a bail adapted to clamp under said hooks and over the linewire resting upon said hooks, and hold said line-wire with a continuous pressureinto position with a circular grooved insulator substantially as shown and described.

AUGUSTUS II. IVEIKMAN. lVitn esses:

I. I ELKINTON, 0. It. MORGAN.