US818186A - Insulating-cleat. - Google Patents

Description

PATENTED APR. 1.7, 1906.

H. D. MUBDOUK.

1mm JULY 17. 1905.

INSULATING OLBAT.

APPLICATION T ...lL 1li irl m nM No. 818,185.v

- UNITED STATES PATENT oEEioE.

HENRY D. MURDOQK, yor WiLKiNsURG, PENNSYLVANIA.

l INSULATING-CLEAT.

v ef itknown that I, HENRY D. MURDOCK, a citienfiofthe United States of America, re

siding atVVilkinsbui-g, in the county of Alle-A ghenya'nd Statefof Pennsylvania, have invented certain new and usel'ul Improvements -in Insulating-Cleats, of which the following is a specification, reference being had therein to the accompanying drawings, l

. This invention relates to certain new and,

. useful improvements in insulating-blocks;

and the'invention has for its object to provide a novelform of block in which various sizes of wire or cable can be clamped.

`My'invention aims to provide a positive and "reliable means for effectually retaining a lcable or wire in engagement With an insulating-block or piece of material, and in this con-k ne'ction I have devised a novel form of block 'iirmly clamped and 'retained in position.

wherein ywires of various diameters can be To *this end I have devised a block, a part of "which'is reversible, whereby either a wire of a f vclamped,together",'it has been impossible to mount wiresof various diameters within the 4block` without causing the blocks to be sepaj rated,` this positionof the' bloclgs' preventing thef'wire from'being 'firmly clamped and enti'rely surrounded by the insulating-block. I have provided a block which will clamp Wires of various diameters and at the same time'insure the wire of 'being surrounded by the insulatinglblock.

With the 'above and other ohjectsin view,

which willinore readily appear las the nature ofthe invention 'isfbetter understood, the

'same consists in the novel construction, combination, and arrangement of parts to be hereinafter more I v.The essentialleatures of my invention are necessarily susceptible. to ,variousl structural 'changefswithout departing from thesco e of tl'iefiriventioii;'but the preferred. em odimeri-tsl 'are 'illustrated 'in the" accompanying drawing 5,11; which;

. Specification of Letters Patent. .Application filed July 17,1905. Serial No. 2692.955.

fullydescribed, illustrated,

' Patented April, 17, 1906.

Figure l is a side elevation of an insulatingblock constructed in accordance' with my invention. Y Fig. 2 is a similar view illustrating the block clamping a wire of a larger diamete'r than that shown in the block in Fig. 1 of the drawings; Fig. 3 isa plan View of the block illustrated in Fig. 1. Fig. 4 isa plan f the block illustrated in Fig. 2. Fig. 5 is a side elevation of a block constructed to hold one or more wires and Fig. 6 is a longitudinal sectional view of one of my improved blocks, illustrating a modified form of construction.

Like numerals of reference designate corresponding arts throughout the several views of the rawings.

To put my invention into practice, my improved insulating-block consists of two members 1 and 2, which are preferably made of orcelain or the like insulatin material. ach member is substantially ob ong in to .plan View and is provided with rounded en s 3' 3, and in each end of the members 1 and 2 I provide vertically-disposed'openings 4 and `-5, the openings 4 of the member 2 being adapted to aline with the openings 5 of the vmember 1 when the member 2 is pIaced upon the top of the member 1. In these openings conventional forms of bolts 6 6 are laced when it is desired to clamp the insu atingblock to asupport or object, and the ends 7 7 of the bolts are threaded to receive the nuts 8 8 in order that the member 2 may be clamped iiimly upon the member 1.

My invention particularly resides in the o. .iings I t 1n the members to receive t Ve wires or cables 9 and 10. Centrally and transversely of the member 1, which serves functionally as a body ,portion or base for the member 2,' I form a groove 11 having slant'- ing sides 12 12. In this groove is adapted to rest the wires oi' cables to be clamped within the insulating-blocIk.l The top and bottom ,surfaces of the lmember 2 are provided with protuberances 14 14 and 15 15, the protuberances 14 '14 forming a central'transverselydisposed groove 16,. Which lies'below the surface 17 of the member 2. Between the pro tuberances 15 is Jformed a transverselydisposed groove 18,v which lies below the surface 19 ofthe member 2.

In Fig. 1 of the drawings I have illustrated the member2 as mounted upon the member 1 and thesurface 19 of the member 2 coincidingwith the top ofthe member 1. .When in this position, the protuberances A15 l5 ex tend downwardly into the grooves 11 of the IOO 'adapted to rest and be clamped.

member l, and the groove 18, together with the groove 11, forms curved beairng-surfaces or tapers in which the cable or wire 9 is Ihen .the membersv 1 and 2 are so assembled, it will be observed that they are firmly clamped together.

Reference will n'ow be had to Fig. 2 of the drawings, wherein I have illustrated the member 2 as reversed-that is, the surface 17 of the member coinciding with the top of the member 1. IVhen in this osition, the protuberances 14 14 extend partiallyT into the groove' 11 of the member 1 but the groove 16, formed between the protuberances, extends above the top of the member 1 or the surface 17 of the member 2, consequently providing an opening Within the two memers, which will accommodate a wire or cable of a greater diameter than the wire or cable Q.

By the construction of the members 1 and i 2 and the Jfeature of reversing the,member 2 wires of various diameters can be clamped between the two members of the insulatingblock without necessitating theuse of a special constructed insulatingblock to accom-A modate a special size of wire.

In Fig. 5 of the drawings I have illustrated a block 22, which is provided with two open ings 2323, lthese openings being constructed to accommodate wires or cables. The members 24 and 25 of the block 22 are constructed identical with the members 1 and 2, heretofore described, with the exception that the protuberances and grooves are duplicated adjacent each end of vthe block providing means whereby two Wires of various diameters can be clamped within the block. It

will ofcourse be understood that a block may be constructed having a plurality of grooves and protuberances to clamp a plurality of wires. f

In Fig. 6 .of the drawings I have illustrated a block wherein novel means is provided for temporarily holding the block in en agement withv an object or support. The" lock 26,

.having a groove 27 formed therein similar to the groove 11, heretofore described, has its bottom surface 28 provided with two grooves 29 29, and in the central portion of the block I form a recess 30, which extends downwardl from the bottom ofthe groove 27 and termlnates in a tapering end 31 n close roximity to the grooves29, the'tapering end 31 of the recess 30 lying approximately between grooves 29, whereby when the bottom of the recess is struck with a sharp instrument thel material lying between lthe tapering end 31 of the recess 30 and the grooves 2929 will be broken away, permitting'of'a screw or nail being placed in the openings 30 to secure the block 26to a suitable-support or object. It will be observed that when it is notl desired to use the opening 30 for securing the block to a support or object thatthe block'is practically as sound and secure as the members 1 of the blocks heretofore described.

By the construction of my improved insulatinU-blocks considerable timc and labor is saved heretofore required in the changing of the insulating-blocks when it was desired to clampa wire of a greater diameter than could be accommodated in the block, where in connection with my improved blocks it is only necessary that the outer or member 2 of the same be reversed and secured in engagement with the member 1. I do not care to confine myself to the( material from which mvimroved insulating-blocks may be made, as liard rubber, glass, or the like non-conductive material can .be readily used.

It is thought' from the foregoing that the construction, operation, and advantages of the herein-described insulating-block will be apparent without further description, and various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacrilicing any of the advantages thereof.

What I claim, and desire to secure by Le ters Patent, is-

1. An insulating-block of the character I scribed consistingof two members, one of said members having a groove formed therein, protuberances carried by the u per and lower faces of the other of said mem ers, said member having grooves formed therein between said protuberances, and meansto secure said members together, substantially as described. v

2. An insulating-block of the character described' consisting of two members, one of. said members having a groove formed therein, protuberances carried by the other of said members to itl in the roove of the first-mentioned member,l sai last-named member having a groove formed therein betweenA said protuberances, substantially as described'.

3. An insulating-block consisting of two members one of said members having a oove formed therein, protuberances carried y the other of said members and adapted to lit within said groove, substantially as described.

4. An insulating-block com rising two nol members adapted to match toget er, and one of which members has a cable receivin groove in its matching face, the other of sai members having two matching faces, andy ent depths, protuberances on both of said faces at the outer sides of the grooves, in combination with a second member having a groove in its matching faces to receive said protuberances.

7. An insulating-block comprising two members adapted to match together, one ofv which has a transversely-extending groove on its matching face, and the other of which is ada ted to have either of its faces match witht e first-mentioned member, and is provided with a groove and a protuberance on each face, the grooves on one face being of a depth less than the grooves on the other face,

and the protuberances adapted to engage 1n the transversely-extending groove in the inst-mentioned member, substantially as described.

8. An insulating-block comprisin a member adapted to receive a cable, and aving a weakened portion adapted to be broken away l to form an opening therethrough'.

9. In an insu1ating-b1ock,two members adapted to be matched together, and each provided with a cable-receiving groove, one of said members constructed with a weakened portion ada ted to be broken away to form an opening t erethrough, as and for the purpose described. 1 Y

In testimon)T whereof I affix my signature in the presence of'two witnesses.

HENRY D. MURDOCK. Witnesses:

E. E. POTTER, C. KLosTERMANN.

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