US1849789A

US1849789A - Auxiliary cross arm pole clamp

Info

Publication number: US1849789A
Application number: US475962A
Authority: US
Inventors: Frederick W Coffing
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-08-18
Filing date: 1930-08-18
Publication date: 1932-03-15
Anticipated expiration: 1949-03-15

Description

March 15, 1932. F w. COFFING AUXILIARY CROSS ARM POLE CLAMP Filed Aug. 18, 1950 INVENTOR. FAfD/P/CK W. ('oFF/NG,

ATTORNEYS.

UNITED STATES FREDERICK w. corrmo, or rnnnysvlrtn mnmim .1 1

AUXILIARY onoss r maine;

Application filed August 18, ietioi'lmijb. {$725,952. j i i This invention relates to a device for changing cross arms.

The chief object of this invention to provide a temporary support for a cross arm or a temporary cross arm, detachablysupported on a pole to which the wires supported by the cross arm to be replaced are temporarily secured or supported during the changing from the original to the replacing cross arm. v

The chief feature of the invention consists in the particular construction of the cross arm supporting base and the detachable mounting therefor upon a pole.

The full nature of the invention will be understood from the accompanying drawings and the following description and claim:

In the drawings, Fig. 1 is a side elevational view of one form of temporary cross arm associated with the cross arm support showing the same applied to a pole, the latter being shown dotted.

Fig. 2 is an enlarged top plan view of the cross arm support and pole mounting mechanism, the pole being shown dotted.

Fig. 3 is a front view of a cross arm support and pole clampinglever.

Fig. 4 is a side elevation of the attachment,

including the auxiliary cross arm and showing the same mounted upon a pole, the latter being shown in elevation.

In the drawings 10 indlcates apole and 11 a cross arm. Means for temporarily mount ing the cross arm on a pole includes a supporting portion which is clampingly mounted on said pole. r p

The base portion of the aforesaid supporting means, includes a partially cylindrical portion 12, which "is provided at its parallel edges with two outwardly and oppositely directed

wings

13 and 14. Wing 14 is notched at 15 and said notch or groove is defined by a-pair'ofparallel flanges 16, apertured as at 1 17 to receive a pivot form of a bolt or the like 18. The wing 13.is suitably apertured as at V 19 and an eye-bolt 20 is supportedthereby and supports one end of a'link chain 21 or other flexible clamping construction, Link chain 21'is adapted to have any one] of its. links associated'with the hook portion 22 of a hook link member 23,;which has; a curved I portion 24=and passes :over'the-pin 18jas a T fulcrum. The other end of the hook 'terminates in an eye 25 which is pivoted as at 26 upon a lever having the bifurcated ends 27 I 5! which straddle the eye portion 25 and said lever terminates in a-handle portion 28.. -After the handle is tilted counterclockwise,

see Fig. 2, and the chain link is associated with the hook portion 22 with substantially all of 7 I the slack taken fromthe chain, then clock-J wise movement of the lever 28 upon the pivot 18 will cause the chain-andpartially cylindrical portion 12, to clampingly engage the The upper end of the

wings

13 and 14 and p the upper edgeof the partially cylindrical portion 12, terminate in a transverse plate 30 which is practically divided into two portions v by the partially cylindrical portion. See

Fig. 2. V

Likewise, illustrated in said figure, is an [upstanding wall 31, integral with the plate 30 at its bottom edge and which is tangential to the projected cylindrical surface of the par- 5 tially cylindrical portion 12. Reinforcing webs 32 insure rigidity of the wall construction. The wall is also provided with a suitable number of

openings

33 and 34. The

cross arm 11 is supported by the wall portion 30 i and in substantially tangential relation to the pole. See Fig. 4. Herein-the temporary or auxiliary cross arm 11 includes a plurality of hooks 40, arranged in spaced relation and if desired, the cross arm may include pivoted end portions, as at 41, pivoted at 42 and nor-' mally retained in cross arm alignedposition' by suitable manually engageable latches 43,

or when released therefrom, said portions 41 may be positioned as shown in the left hand portion of Fig. 1. Infthis position, portion .41 andthehooks 40 thereon, are adapted to support a number. of superposed wires, while whenpositioned a'sshown in the right hand of Fig. 1, the crossarm isarranged to-support five wiresjpositioned in substantially horizontal alignment. V The invention claimed is In a pole attachment,

cuatei'plat'e "conforming arelatively to a portion of the 99 v eireumference of the pole, a wing at each end i of said plate coextensive with said ends and disposed substantially in the same plane with'each other, a cross arm attaching wall of appreciable length and integralwith the upper side of said plate tangential with the latter and substantially parallel, with. said wings, webs connecting the upper portions of the wings with the lower edges of the wall,

and a lever operated fiexible'retaining member associated with said wings =f0r detach ably holding the plate to said pole; the rep 7 l-ation of the plate and cross arm attaching wall being such that saidwall Oran arm car- Y Y riedthereby does not interfere"withioperae "tion of thelever; 1 j 5 In witnesswhereo f, I have hereunto aflixed j my signaturei.

- FREDERICK W; corn-Ne 1 f