US1042677A - Insulating-cleat. - Google Patents

Description

UNITED STATES PATENT, OFFICE.

nonnnr n. HILTY, 0F CAREY, onto, ASSIGNOR or ONE-HALF TO ma N. zEIs, or

CAREY, 01110.

INSULATING-CLEAT.

Specification of Letters Patent.

Patented Oct. 29, 1912.

Application filed April 5, 1912. Serial No. 688,700.

ful Improvements in Insulating-Cleats, of.

whichthe following is a specification.

My invention relates to insulating cleats and is particularly directed to the provision of an improved type of insulating cleat which is calculated to insure the maintenance of multiple wires in a comparatively immovable and unreleasable relation. Considerable difiiculty has been hitherto experienced in the utilization of cleats of this character in maintaining the adjacent wire in proper position during the securement of one wire. While one wire is being rigidly clamped in place, either by means of a tightening of the screwfastening device of the insulator, or through other clamping means, the tendency has been for the other wire to work loose. This is particularlytrue where there are utilized two superimposed blocks of insulating material having substantially parallel complemental grooves and adapted .to clamp the wire between such blocks and within such grooves. This type of device is subject to the difficulty that the fastening of one end of the insulator and the consequent rigid securement of the wire contained between the insulator at this end, necessarily causes a spreading or elevation of the upper member at the opposite end. This spreading operation inevitably results in a lateral tendency to movement of the opposite wire and this disadvantageous feature is entirely obviated by my invention.

In the preferred embodiment of my invention, the cleat comprises two superimposed L-shaped elements which are interlocking in their nature and which have their legs so disposed and cooperative in such a manner as to absolutely insure against lateral spreading of the wires to any appreciable degree, regardless of the relative position of the two members particularly as regards closeness of fit. In other words, the wires retained between the clamping elements of my insulatin g cleat are retained against a lateral movemeut to any appreciable degree whether the cleats be tightly clamped together or loosely clamped together.

The preferred embodiment of my invention is shown in the accompanying drawlngs, in which similar characters of reference designate corresponding parts, and in which- Figure 1 is a top plan view of my insulatmg cleat in assembled relation and showing the position of the wires therein, and Fig. 2 is a side elevation of my insulating cleat showing. the wires therebetween, but in a comparatively uncompressed state.

In the drawings, it will be seen that the base element of my insulating cle'atcomprises a body portion 1 having spaced apertures extending vertically therethrough as at 2 and 3, having one end beveled as at i in a transverse manner andhaving the opposite end provided with a vertical arm 5. The inner juncture of this body portion and the vertical arm is provided with a transverse groove 6 within which fits the wire 7 in a manner apparent from the drawing. The complemental element of my insulating cleat is likewise comprised of a body portion 8, apertures 9 and 10, vertical piece 11, beveled portion 12 and groove 13 and is in effecta practical counterpart and duplicate of the base piece of my insulating element. These devices are adapted to be superimposed as fiuence of the vertical arms 5 and 11. The

downward or upward movement of the wires is likewise prevented by means of the close fitting relationoi' the endsof the body portions and the fvertical arms. It .is nsually desired to clamp the elements together .by

screws 14 and ,15, although other. clamping addition, the coactive parts of each insulating cleat may be placed together with the wires therebetween and during the period in which the screws 14: and 15 are being placed in position, the wires are effectually retained in a substantially accurate position. Furthermore, when the clamps are brought into close fitting relation, the wires Tand 16 may be clamped closely between the transverse beveled surfaces and the coacting grooves I tions having transverse grooves therein,

and all danger of Working loose is practically precluded.

What I claim, is-

1. In an insulating cleat, L-shapcd sections comprising long to abut: the ends of said long arms.

2. In an insulating cleat, sections of general L-formatien comprising body portions adapted to extend in parallelism, and transverse end pieces abutting the ends of said body portions.

3. In an insulating cleat, sections of L- formation disposed in interlittlng relation,

transverse bevels on the ends of said body portions, and transverse grooves at the point i of juncture of the legs of said L-shaped por tions, said bevels and grooves serving to retain the Wires therebetiveen.

st. In an insulating cleat, superposed sections having a plurality of transverse grom'es therein, and depending lug formations protruding beyond the inner face of l the adjacent section for movement of the Wires away from eachr other. K

preventing lateral u- In an insulating cleat, superposed sect each of said sections being apertured for fastening screws, said apertures being to one side of the grooves for preventing latj oral movement of the wires in one direction, arms and end arms disposed transversely thereto and adapted and depending lug formations protruding beyond the inner face of the ad acent section for preventing lateral movement of the wires in the other direction.

6. In an insulating cleat, L-shaped sections comprising long arms and end arms disposed transversely thereto, each of said sections being apertured for fastening screws and having transverse grooves in one face between said apertures and said end arms.

7. In an insulating cleat, L-shaped sections comprising long arms and end arms disposed transversely thereto and adapted to abut the ends of said long arms, each of said sections being apertured for fastening screws I and having transverse grooves in one face between said apertures and said end arms.

In testimony whereof I afiix my signature in presence of two Witnesses.

ROBERT HILTY. Witnesses:

E. G. LAUGHLIN, I. N. Znrs.

Images