US1788245A - Insulator support - Google Patents

Description

Jan. 6 R. H. INSULATOR 'SUPPORT Filed Jan. 26. 1929 2 Sheets-Sheet 1 Muff/musk R. H. MANSON INSULATOR SUPPORT Filed Jan. 26,

Jan. 6, 1931.

2 Sheets-Sheet 2 N. ,1 Il

Eu I

INVENTOR Patented 9.11. 6, I931 UNITED FEST-PATENT O E 1 RALPH 1'1. MANSON, ionrmmsiaunen, PENNSYLVANIA-,IASSIGNOB.T HUBBARD AND COMPANY, A CORPORATION-0F PEN YLVANIA 1 a INSUTLAITOR sorrow Application file d January 26, 1929. Y Serial N6. 335.201.

i f This invention relates to supports and more particularly to nsulated supports or clamps for electrlc cables such, for example, as the current conveying cables or lines associated with an electric lightpole or the like.

An object of this invention is to provide a" device of the typedescribed of improved construction and arrangement; '4,"

A further object is to provide av device of .this type constructed and arranged so as to prevent separation of the parts when'i'the same are unclamped.

These and other objects which will be ap parent to those skilled in thisparticular art are attained by means of this vinvention, one

embodiment of which is illustrated in the accompanying drawings in which Figure-1 is a view in elevation of a portion of a lightsupportin'g pole equipped with a cable support constructed in accordanceiw'ith one embodiment of this invention. Fig. 2 isa simi lar view on anenlarged scale of the insulated cablesupport or clamp. 3 is'a view of the end of the device showing the parts in open position. Fig. 4 isa transverse sectional view on the line 4H1 of'Fig. 2 and Fig, 5

is a similar view showinga di iferent-"fmeans for trapping the insulator parts in the associated bracket parts. Insulated cable supports or brackets are commonly"employed, for example, for supporting or guiding an electric cable or the like 10, which is carrieddown an associated Pole 11 from the usual' cross arm 12 to a light supporting arm 13 or the like. These brack-- ets are usually constructed of separable parts which support a two part insulator through which the cable extends and the various parts 7 of the bracket and insulatorhave heretofore beenso arranged that, when unclamped they became entirely separated from each other and were extremely clumsy and awkward to handle, especially high up on a pole.

The present invention includes a two part bracket 14 having a pole engaging part 15 adapted to be mounted upon or secured to an associated support by any desired means such, for example, as the screw threaded end 16 thereof. The projecting end of the brackct part 15 is formed as a strap member 17 adapted to partially embrace an associated "insulator part 18 whichico operates with a corresponding insulator part 19 positioned within a supporting strap 20. The strap 20;

has an ear-'21 pivoted to a corresponding ear 22 of the supportingstrap' 17 "by any suitable V from thesupportingear 22] The opposite end of strapi member20 has an ear-25 provided With! an open slot 26 adapted-to be moved into and out of co-operativeengage n ent with a clamping screw 27 supported in an'ear28 formed on the'end. ofthestrap Inember 17 oppositefrom the ear 2 2 p 7 In the present invention, the cooperating surfaces of the insulator parts and the sup-' sulator receiving recess formed in the associated bracket part so as to positively prevent any-separation of the insulator parts from :the bracketparts when the clamp is opened forum purpose of. inserting or removing a cable or thehke, such posltlon being illusthat portion 29 of the recess in which the associated insulator part is received.

V Thisis, of course, accomplished after the insulator part is placed therein, and serves effectively to prevent droppingof the insulator from the bracket'when the bracket is unclamp'e'd andopened-by an operator who has climbed the pole for that purpose.

Itwill be apparentthat manycdifierent means can be provided for accomplishing this purpose For example, Fig. 5 illustrates an additional way wh ch lncludes the provision of: insulator engaging tongues 30 on the strap vmembers Wl 1ichare pressed inwardly so as to. fit within tongue receiving apertures 31 molded 1n the insulator blocks.

porting straps or bracket parts are so formed I ,that each insulator part is trapped in the in- *trated in Fig. 3. Inthe construction illus- Ttratcd, in Fig. 1, this is accomplished by crimping the portions ofthe'collars 17 and 20 adjacent the earsothereof so a'sto narrow It will be apparent that the present construction provides an arrangement which will enable an operator to ascend the pole and open the clamp so as to insert or remove a cable or Wire therefrom without any danger of the bracket parts or the insulator parts from becoming separated and dropping to the ground. It will also be appa-rent'that the strap members 17 and 20 can be hinged or pivoted together by any suitable means other than the pivot screw 23 which will permit the strap member 20 to be moved to open or closed position with relation to the sup porting part or bracket.

hat I claim as new and desire to secure by Letters Patent is l. The combination in a cable support of a bracket member adapted tobe mounted upon a supporting pole or the like, and having a U-shaped insulator receiving recess in said bracket, a U-shaped insulator part mountedin said recess, tongues on said bracket members adapted to be bent inwardly into engagement with said insulator part for preventing separation thereof from said recess, a U-shaped insulator supporting strap hinged to said bracket .adjacent said recess, a second U-shaped insulator part positioned in said strap, tongues on said strapinember adapted to be bent inwardly into engagement with said second insulator part for preventing separation thereof from said strap, and means for clamping said strap to said bracket so as to holdsaid insulator parts in cooperative position.

2. The combination in a cable support of a bracket having a strap member provided with outwardly extending arms forming a recess therein, an insulator section having the outer edges thereot' taperedinwardly adapted to be received within said recess, a second strap member having outwardly extending arms thereon, an insulator member similar to the above-mentioned insulator adapted to be received within the second strap member and means extending through the outwardly extending arms of said strap members for securing the same together, the outwardly'extending arms of said strap members beingcrimped at points adjacent the inwardly tapering outer edges of said insulater members for securely holding said members in place in said recesses.

3. The combination in a cable support of a bracket'having a curved strap member, outwardly projecting ears on said strap member, a U-shaped insulator member adapted to be received within said strap member, a second curvedstrap' member, outwardly projectingears on said seeondcu'rved strap member adapted to cooperate with the ears on said first strap member, a U-shaped insulator member adapted to be received within said second curved member and means extending through apertures in said ears for securing said strap members together, the outer ends of said curved strap members being bent inwardly into locking engagement with said insulator members for securely holding said members in place therein.

4-. The combination in a cable support, of a bracket having a U-shaped strap member,

7 aU-shaped insulator member having inwardly tapering outer edges adapted to be received within said strap member, a second U-shaped strap member, a second U-shaped insulator having inwardly tapering outer edges adapted to be received Within said sec and strap member, the ends of said strap members being crimped into engagement with the tapered edges of said insulator parts for preventing separation thereof from said strap members and means for securing said strap members together.

The combination in a cable support of a bracket member adapted tobe mounted on a supporting pole or the like, a U-shaped insulator receiving recess in said bracket, out- Wardly extending ears on the arms of said bracket, a U-shaped insulator member having shoulders on the outer edges thereof adapted to be received within said recess and held therein by the engagement of the arms of said U-shaped bracket member with the shoulders on said insulator member, a U- shaped strap member adapted to co-operate with said bracket adjacent said recess, outwardly extending ears on said strap member, a second U-shaped insulatormember similar to the first-mentioned insulator member adapted to be received in said second strap member and to be held therein by the engagement of the arms on said strap member with the shoulders on said insulator member and means extending through apertures iu the ears of said strap and bracket members for holding said insulator members "in cooperative position. I

In testimony whereof, I have hereunto sub scribed my name this 24th day of January, 1.929.

RALPH MANSON.

Images