US1802966A - Insulator support - Google Patents

Description

April 28, 1931. G. w. BRADY 1,302,966

INSULATOR SUPPORT Filed Jan. 17. 1929 2 Sheets-Sheet 1 April 23, 1931- G. w. BRADY I 1,802,966

-INSULAT OR SUPPORT Filed Jan. 17, 1929 2 Sheets-Sheet 2 Patented Apr. 28, 1931 UNITED STATES PATENT OFFICE GEGRGE W. BRADY, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE BRADY ELEC- TRIO & MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT INSULA'IOR SUPPORT Application filed January 17, 1929. Serial No. 333,053.

, My invention relates to an insulator support, and more especially to an insulator support of the swinging bracket type which may adjust itself so that the strain on the brzhcket is always in a direct line with the An object of the invention is to provide an insulator support in the form of a swinging bracket or the like in which the insulator is mounted on an element which may be readily and quickly attached toor detached from another element which is adapted to be mounted on a building, pole or the like.

In a more specific aspect, the invention contemplates a swinging bracket provided with a bail on which the insulator is received 1 and a support for the bail, the structure of the support being such that the bail may be quickly attached to or detached from the support.

A further obj ect of the invention is to provide a device of the above character in which the bail or other element on which the insulator is received is held in its support against accidental displacement.

I To these and other ends, the invention consists in the novel features and combination of parts to be hereinafter described and claimed.

In the drawings:

Fig. 1 is a plan view of an insulator support according to inyinvention;

, Fig. 2 is a sectionalview along line 2-2 of Fig. 1, b.nt on an enlarged scale;

Fig. 3 is a fragmentary plan view of the structure shown in Fig. 2;

Fig. 4 is a perspective view of a part of the insulator support;

Fig. 5 is a plan view of a modified form; Fig. 6 is a sectional view taken along line 6-6 of Fig. 5, but on an enlarged scale; Fig.7 is a plan view of the structure shown in Fig.6;

Fig.8 is a perspective view of the insulator support shown in Fig. 5, but partly broken away;

Fig. 9 1s a plan View of anothermodificanon; I

' Fig. 10 is a sectional view taken along line 10-10 of Fig. 9;

Fig. 11 is a plan view of the structure shown in Fig. 10; and

Fig. 12 is a perspective view of the insulator support shown in Fig. 9 but partly broken away.

Referring to the drawings, in which I have illustrated my invention by showing some preferred embodiments of the same, and with particular reference to Fig-s. 1 to 4, inclusive,

the reference numeral 15 indicates, in general, a swinging bracket comprising a bail or yoke 16 generally U-shaped in form, the ends of the legs 17 and 18 of the bail being bent into loops (not shown) in which is received a bolt 19 having an insulator 20 mounted thereon, insulator 20 being received between legs 17 and 18 and held against displacement by nut 21 on the end of bolt 19. Reference numeral 22 indicates'alag screw having a shank 23 which passes through a An important part of the invention resides inthe provision of means whereby the bail or other element on which the insulator is directly supported may be readily attached to or detached from a supporting element, in the present instance, the strap 24.

Referring again to Figs. 1 to 1, inclusive, it will be seen that the arm 26 of strap 24 is cut away at one side to form an inwardly and forwardly directed slot 30 which communicates with opening 28 rearwardly of the center thereof. Arm 25 is provided with a similar slot 31 which is likewise directed inwardly and'forwardly. Arm 26 forwardly of slot 30 is bent away from arm 25, while arm 25, forwardly of slot 31, is bent away from arm 26, both arms forwardly of openings 28 and 29 being transversely arcuate in form, as shown particularly in Fig. 2.

lVhen the insulator support is in use, the bail 16 will normally occupy the position :in in) by the reference numeral 16.

shown in dotted lines in Fig. 4 and indicated then it is desired to detach the insulator from its support, the bail 16 is swung in openings 28 and 29, until, for example, one of the arms of the bail, in this instance the upper arm, is opposite the slot 30, whereupon the upper arm of the bail may move downwardly through slot 30 into the position shown in dotted lines in Fig. 2, and indicated by reference numeral 16". It will now be apparent that the bail may be moved between strap arms 25 and 26 into the position indicated by reference numeral 16 in Fig. 4, and finally into the position indicated by reference numeral 16 in the same figure, whereupon the bail may be separated from the support. 'The bail may be assembled on the support in a reverse manner.

It is to be notedthat the displacement of arms 25 and 26 forwardly of slots 30 and 31 provides a greater clearance between arms 25 and 26 at this point than is provided rearwardly of openings 28 and 29, and furthermore, the upward displacement of the forward edges of slots 30 and 31 provide ramps which to a certain extent oppose movements of bail 16 towards slots 30 and 31, especially when the bail is subjected to the tension of a wire supported on the insulator. Thus, accidental dislodgment of the bail from the support is prevented. The clearance between the forward ends of the strap arms is such that the bail may be readily moved between these arms when detachment is necessary.

From the above description of one of the preferred embodiments of the invention, it will be readily understood that the bail supporting element, in this instance the lag screw 23 and strap 24, may be separately mounted on a building or pole or the like, and the insulator and its bail may be quickly assembled thereon or unlocked after the line is set or quickly and completely salvaged after the line has served its usefulness.

In Figs. 5 to 8 inclusive, I have shown a modification in which the bail 32 passes through the insulator and is provided with interengaging hook- like ends 33 and 34. Strap 35 is quite similar to strap 24 except that it will be noted that slots 36 and 37 are, in this instance, much narrower than slots 30 and 31. It will further be noted that the bail 32 at bend 38 is flattened. With this form, the relatively narrow slots and flat-- tened bail require a somewhat more precise positioning of the bail in attaching or detaching the same from the support which greatly assists in preventing accidental disengagement of the hail from the support.

In Figs. 9 to'12 inclusive I have shown another modification which while similar in general to the other forms distinguishes therefrom in that the strap 39 is made of somewhat thinner resilient material and in that legs 40 and 41 at their outer ends are spaced apart a less distance than the thickness of bail 42. In'this instance, it is proposed to insert the end of a screw driver or similar instrument between arms 40 and 41 to spread them apart a sufficient distance to permit the insertion of the bail in attaching the bail to the support, or detaching it from the same, this spacing of the arms being of great assistance in preventing the hail from becoming accidentally disengaged from the strap or other supporting means. It will be noted that the arms 43 and 44 of bail 42 are substantially parallel to one another adjacent the bend 45, the purpose of this shape being to permit the bail arms to assume the position shown in Fig. 10 in dotted lines, wherein the bail is in a position such that it may pass between the arms 40 and 41 of strap 39.

While I have shown some preferred embodiments of my invention, it will be understood that it is not to be limited to all the details shown, but is capable of modification and variation within the spirit of the invention and the scope of the appended claims.

IVhat I claim is 1. In an insulator support, an insulator, a bail-like element on which the insulator is received, and a support on which the baillike element is detachably mounted, said support comprising a pair of flat parallel arms, each of said arms having a circular opening therein and a slit extending forwardly into the openings from one side thereof, the slit in one arm being on the remote side thereof from the slit in the other arm, and the arms forwardly of the openings being spaced apart a distance substantially equal to the thickness of the bail-like element.

2. In an insulator support, an insulator, a bail-like element on which the insulator is received, and a support on which the baillike element is detachably mounted, said support comprising a pair of flat parallel arms spaced apart at their ends a distance substantially equal to the thickness of the baillike element, each ofsaid arms having a circular opening therein and a slit extending forwardly into the openings from one side thereof, the slit in one arm being on the re- 7".

mote side thereof from the slit in the other arm, and the arms forwardly of the slits being bent outwardly away from one another a sufficient distance to permit the passage of the bail-like element through the slits into the openings.

3. In an insulator support, an insulator, a bail-like element on which the insulator is received, a lag screw, a strap having a centrally located aperture in which the screw is received, said strap and screw being secured together against relative movement, the strap being doubled over to present two parallel arms spaced apart at their ends a distance substantially equal to the thickness of the bail-like element, each of said arms having a circular opening therein for the reception of the bail-like element, and a slit extending forwardly into the openings from one side thereof, the slit in one arm being on the remote side thereof from the slit in the other arm, and the arms forwardly of the slits being bent outwardly away from one another a suflicient distance to permit the passage of the bail-like element between the arms and through the slits into the opening.

In witness whereof, I have hereunto set my hand this 10th day of January, 1929.

' GEORGE W. BRADY.

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