US857101A - Cross-arm for towers. - Google Patents

Description

PATENTED JUNE 18,1907.

LA VBRNE W. NOYES. GROSS ARM FOR TOWERS.

APPLICATION FILED JULY 2, 190a.

LA VERNE w. NOYES, OF orncAco, rumors.

CROSS-ARM FOR TOWERS.

Specification of, Letters Patent.

Patented June 18, 1907.

. Application filed July 2,1906. Serial 324,439.

1 0 all whom it may concern.-

Be it known that 1, LA VERNE W. NoYEs, a citizen of the United States, residing at Chicago, 1n the county of Cook and State of Illinois, have invented new and useful Improve ments in Cross-Arms for Towers, of which the following is a-full, clear, concise, and exact description, reference being had to the accompan in drawing, forming a part of this speci cation. I

My invention relates to improvements in towers and particularl to towers used for electrical transmission 'nes, my object being to provide a tower having suitable means for carrying the electrical transmission wires.

Other features of my invention will appear in the specification and appended claims.

I have illustrated my invention in the drawings forming a part of this specification, and in which Figure 1 is a side elevation of the upper portion of my tower; Fig. 2 is a sectional view taken "on the line 2-2 of Fig. 1; Fi 3 is a sectional view taken on line 33 of Fig. 1; and, Fig. 4 is a sectional view taken on the line 4-4 of Fi 3.

In the preferred embodiment of my inventlon the post of my tower is preferably formed of a plurality of converging an le irons or legs. This post may be the singe 0st of a three-leg tower, in which the angle irons 1, 2 and 3 are continued and form the legs of the tower, or this post may be one of a plurality of posts formed on a suitable base of any character. The converging le s 1, 2 and 3 of the posts are preferably inter aced at their convergin point and are bound together by suitable 0 amps 4 and 5. Suitable braces 6 are arran ed at intervals along the legs which pro erly race the same, and tie the same toget er 1nt0 a umtary structure. At the o1nt of convergence of the legs 1, 2 and 3,

ormed of angle lrons, a socket is formed, into which are arranged to be fitted a pair of socket-pieces 7. and 8. These socket-pieces have their outer sides formed to conform to the shape of the socket formed by the convergi ends of the legs 1, 2 and 3 and have on thelr inner] faces semi-circular recesses 9, 1n which areada ted to fit a portion of the cross-arm 10 and a portion of. the vertical arm 11. vertical arm is preferably formed of angle iron, having its upper end flattened as at 12, to receive a wire and its lower end rounded to form a semi-circular portion 13, arranged to fit'in the socket formed by the recesses 9 in the blocks 7 and S, and around the cross-arm 10. arm is of peculiar formation and is preferably formed of iron pipe having an intermediate vertical ortion 14, which is clamped between the bloc {S 7 and 8, and substantially horizontal end- portions 15 and 16 ,which support at their outer ends insulators 17 and 18. These insulators may be supported in any desired manner and are here shown as being supported upon suitable vertical posts 19 and 20, which are bolted in openings formed in the ends 15 and 16. At a lower point on the tower, a second cross arm 21 is also secured which, like the cross-arm 10, is formed of iron pipe and has its inner end flattened and bolted to the legs 3 of the 0st of the tower. An intermediate portion 0 the cross-arm 21 rests u on and is secured to one of the horizontal races 6 of the tower, bein secured in position by a strap or sta le 22, w 'ch has its 0 posite ends passing t ou h openings in t e brace 6, and provided with bolts 23, to secure the same in position. The outer end of the cross-arm 21 also carries an insulator pin 24, which is secured upon a vertical post 25, in the same manner as the insulator pin 17.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination with the post of a tower, of a. cross-arm therefor having a portion by which it is supported substantially at right angles to the remainder thereof, and a second arm having one end connected to one leg of the post and an intermediate portion secured to and supported by one of the braces of the tower.

'2. The combination with the post of a tower, of a hollow cylindrical cross-arm therefor having one portion thereof connected to one leg of the tower, and an-intermediate portion supported by and secured to one ofthe braces of the post.

3. The combination with the post of a tower, of a cross-arm therefor having a substantially vertical intermediate portion bywhich it is supported in position, and substantially horizontal end-portions.

4. The combination with the post of a tower, of a cross-arm therefor having an in.- termediate portion by which it is supported extending substantially at right angles to its end-portions.

5. The combination with the post of a The crosstower,-of a cross-arm therefor, cylindrical in cross section and having an intermediate portion by which it is supported extending substantially at right angles to the end-porthereof clamped between said posts.

7. The combination with a plurality of converging posts of a tower, of a crossarm therefor having a portion thereof clamped between said posts at the point where they converge and extending substantially at right angles to the remaining portion of the arm. 7 V

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses.

LA VERNE W. NOYES.

Witnesses:

D. R.'SCHOLES, L. WALKER.

Images