US2124502A

US2124502A - Tie clamp

Info

Publication number: US2124502A
Application number: US169859A
Authority: US
Inventors: Yartz John
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-10-19
Filing date: 1937-10-19
Publication date: 1938-07-19
Anticipated expiration: 1955-07-19

Description

July 19,` 1938. 1 YAR-rz 2,124,502

TIE CLAMP Filed Oct. 19, 1937 ATTORNEYS Patented July 19, 1938 UNITED STATES PATENT OFFICE 2 Claims.

My invention relates to improvements in electric insulators and more particularly to tie clamps used in connection therewith.

Cne of the principal objects of my invention is to provide a tie clamp adapted for connection to an insulator whereby electric cables may be quickly and effectively clamped thereto.

Another object of my invention is to provide a clamp of the above described character equipped with means whereby the clamping means yis maintained in a locked position.

A further object of my invention is to provide a clamp of the above described character capable of accommodating electric cables of various sizes l5 whereby the same are effectively clamped thereto.

Other objects and advantages will be apparent from the following description, appended claims and annexed drawing.

Referring to the drawing wherein like reference characters designate like parts throughout the several views:

Fig. 1 is a top plan view of my invention illustrating the same as being secured to an electric insulator.

`--5 Fig. 2 is a longitudinal section taken on the line 2 2 of Figure 1.

Fig. 3 is a detail transverse sectional view of the cap illustrating the stationary clamping element.

Fig. 4 is a top plan view of a pair of shims employed in connection with the clamping device. Fig. 5 is a side elevation of the latch member. In practicing my invention I provide a cap member 5, preferably constructed of relatively stiff .sheet metal, formed on the lower circumferentially extending face with a plurality of upwardly extending slots 5 providing a compressible section "I, The top B of said cap is of a substantially bulbous configuration and is segmented -O throughout the length thereof to form a cable receiving passageway 9 through said cap. Interiorly of said cap and adjacent the compressible section there is secured a horizontally extending deck l0, the lower face of which abuts the head I I of an insulator I2 of typical construction.

One side of the passageway 9 is formed with a wall I3 of substantially semi-circular coni-lguration integral with the top 8 at the upper end and terminating at the lower end in apertured segmented hinge sections I4 as clearly illustrated in Figure 3 of the drawing, said wall constituting a clamping element forming a part of a clamping device. Oppositely disposed from the wall I3 is a similar shaped wall I5 or clamping ele- 55 ment forming another part of the clamping de- Cil vice and said wall is fashioned at the lower end with hinge sections fitting the segmented portions of the hinge section formed on the wall I3 and is pivotally connected thereto by a pintle I6.

Pivotally mounted on the deck I 0 is a toggle 5 mechanism comprising toggle arms I'I, I8 and I9, the lower end of the arm I I being pivotally connected to the deck and the upper end pivotally connected to ends of the arms I8 and I9. The opposite end of the arm I8 is pivotally con- 10 nected to the wall I5 and the opposite end of the arm I9 is pivotally connected to an inner end of an actuating lever 20, said lever being pivotally secured to the cap 5 as at 2|. Actuation of the lever 2U downwardly towards the insulator, will l5 through the medium of the toggle mechanism, position the clamping element I5 in clamping position relative to the clamping element I 3 as illustrated in full lines in Figure 2. Actuation of the lever 28 in an upward direction away from the 20 insulator will, through the medium of the toggle mechanism, position the clamping element I5 in opened or unclamped position relative to the clamping element I3 as clearly illustrated in dotted lines in said gure. 25

The cap 5 is secured about the head II of the insulator by means of a clamping band 22 having pivoted sections 23 embracing and compressing the section I about the head and said sections 23 are secured together in clamped condition by 30 means of a suitable nut and bolt 24 as illustrated in Figure 1.

The lever 20 is maintained in clamped position by means of a latch member 25 pivoted to the cap 5, thereby preventing accidental dislodgment of the lever when the same is in clamped condition to maintain an electric cable between the clamping elements.

From the foregoing it will be apparent that a length of electric cable positioned between the clamping elements I3 and I5-when the parts are in opened position-may be effectively clamped therebetween by the actuation of the lever 20 to the locked or clamped position illustrated in full lines in Figure 2 and that a reverse 45 movement of said lever will serve to release the clamping action of the clamping device and permit removal of the cable.

In instances where it is desired to secure cables of a smaller diameter in the clamping device, I provide the walls I3 and I5 with bayonet slots 26 for receiving headed pins secured to shims 2'I therethrough and which maintain said shims to said walls. Each of the shims are of a suicient thickness so that the cable may be eifectively clamped therebetween and are provided with cable receiving grooves 28 for embracing the cable.

It will be apparent that cables of various sizes may be effectively clamped between the clamping elements I3 and I5 and securely connected to the insulator. Y

The outer ends of theY lever 20 and latch member 25 are adapted to receive the hook-end of a stick, commonly known as a hot-stick, for operating the same thereby eliminating the danger to linemen in connecting and disconnecting the cable to the tie clamp.

What I claim is:

1. A tie clamp for insulators, comprising, a cap member having a compressible section adapted to t over the head of an insulator, a clamping band secured about said section a deck mounted within said cap for abutting engagement with the head of the insulator, a clamping element connected to the top of said cap, a like clamping ele# ment pivoted to the rst mentioned element Yand adapted to coact with the latter to clamp an electric cable therebetween, toggle mechanism' mounted on said deck and connected to said second mentioned clamping element, and an operating lever pivotally connected to said cap and to said toggle mechanism and operable for moving said second mentioned clamping element into and out of clamping position.

2. A tie clamp for insulators, comprising, a cap member having a compressible section adapted to t over the head of an insulator, a clamping band secured about said section, a deck mounted within said cap for abutting engagement with the head of the insulator, a clamping element connected to thetop of said cap, a like clamping element pivoted to the rst mentioned element and adapted to coact with the latter to clamp an electric cable therebetween, toggle mechanism mounted on said deck and connected to said second mentioned clamping element, an operating lever pivotally connected to said cap and to said toggle mechanism and operable for moving said second mentioned clamping element into and out of clamping position, and a latch carried b ysaidcap for locking said lever in clamping position.

JOHN YARTZ.