US527254A

US527254A - Insulator

Info

Publication number: US527254A
Authority: US
Publication date: 1894-10-09
Anticipated expiration: 1911-10-09

Description

UNITED STATES WILLIAM D. TRIMBLE, OF

PATENT OFFICE.

BALTIMORE, MARYLAND.

INSULATOR.

SPECIFICATION forming part of Letters Patent No. 527,254, dated October 9, 1894.

7 Application filed February 2, 1894.

To all whom it may concern:

1 3e it known that I, WILLIAM D. TRIMBLE, a OItlZBII of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Insulators, of which the following is a specification.

My invention relates to an improvement in insulating cleats for suspending or hanging up electric circuit wires, and the object is to provide a cleat which, while it is simple in construction, will take Wires of any size, and has no open joints in which moisture may collect and injure the insulation of the wires.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a perspective View showing the two parts of an insulating cleat adapted to support a single wire. Fig. 2 is an inverted plan new of same. Fig. 3 is a central vertical section of the cleat. Fig. 4: is a view of the two parts separated and showing an inslde view. Fig. 5 is a side view of the cleat as constructed for supporting a plurality of wires. Figs. 6 and 7 show a modification of the cleat.

The improved cleat comprises the top socket piece, A, and the lower clamping piece, B, which fits up within the socket piece. These two parts may be constructed of any suitable lnsulating material, but I prefer to make them of porcelain.

In one form, see Figs. 1, 2, 3 and 4, the socket piece, A, has a socket, c, in which and centrally thereof is a longitudinal bridge, 01, pro ecting up from the base of the socket to a position flush with the side flanges, e. The ends, 6, are closed and both the bridge and the side flanges shown in Figs. 3 and A have an nverted V-shaped notch, f, arranged colncldingly, and the bridge is provided with screw-holes, g, on either side of the notch.

The lower clamping piece, B, has a V-notch, f, in its side flanges, h; and end flanges, h, and is provided with a recess, 2', between these flanges. This clamping piece sets up within the socket piece, A, with the bridge, cl, of the latter occupying the recess, 2', of the former and the V-notches all in coincidence.

In the clamping piece shown in Fig. 5, there are two V-notches instead of one, but other- $erial No. 498,8 3. (No model.)

wise it is connected with the socket piece in the same manner.

The electric wire, j, rests upon the bottom of the inverted V-notches of the socket piece, A, and the clamping piece, B, is placed up within the socket with its V-notch under the wire. Suitable fastening screws, lo, are then passed through the screw holes and extend up through the top of the socket-piece. The

cleat is then secured with the top of the socket resting up against the ceiling or other desired place. In this position the socket flanges, e, and ends, 6, project down around the clamping piece like a hood, and any moisture which may be deposited on the former will drip down and fall therefrom. Thus no moisture can collect within or between the two parts of the cleat and injure the insulation of the wires.

The cleat shown in the modification, Figs. 6 and 7, is of the same construction as the cleats in the other figures, except that the bridge in the socket is dispensed with and the recess in the clamping piece is also dispensed with. The size of the notchesof the V-slots of the two pieces may be increased or diminished to receive larger or smaller wires by varying the depth at which the clamping piece, B, fits within the socket, A.

The advantages of my device arez-Any size wire may be used; there is a thorough protection from moisture; no open space or slot is left between the two pieces, as is the case with many of the devices heretofore used.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. An insulating cleat for suspending electric wires, comprising the upper piece, A, having a socket closed on all vertical sides and open on the bottom and provided with notches in its side flanges; and a clamping piece provided with notches and fitting up within the said socket, so that the latter projects down around it on all sides.

2. An insulating cleat for suspending electric wires, comprising the upper piece, A, having a socket closed on all vertical sides and open at the bottom and provided with a bridge extending longitudinally thereof,-the sides and the bridge having one'or more notches;

ICO

and a clamping piece having a recess closed In testimony WhereofIaffix my signature in on all sides and adapted to fit up within the the presence of two witnesses. said socket with the bridge of the upper piece in said recess, and said clamping piece pro- 5 vided with one or more notches to coincide YVitnesses:

with the notches in the sides of the said up- CHARLES E. MANN, J12, per piece. L. ISMY VAN HORN.

XVILLIAH D. TRIMBLE.