US969859A

US969859A - Telegraph-pole and the like.

Info

Publication number: US969859A
Application number: US49772709A
Authority: US
Inventors: Broderick Haskell
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-05-22
Filing date: 1909-05-22
Publication date: 1910-09-13
Anticipated expiration: 1927-09-13

Description

B. HASKBLL.

TELEGRAPH POLE AND THE LIKE.

APPLICATION FILED MAY 22, 1909.

Patented Sept. 13, 1910.

attend UNITED OFFICE.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed Kay 22, 1908. Serial Ito. 487,727.

To all whom it may concern:

Be it known that I, Bnoonnrcx HASKELL, a. citizen of the United States residing at Franklin, in the county of .enango and State of Pennsylvania, have invented certain new and useful Improvements in Telegraph-Poles and the Like, of which the following is a specification.

My invention relates to improvements in metallic poles for telegraphs and the like and the same has to do particularly with a. type of such poles made up of a series of preferably three uprights or legs the same )eing secured together in proper spaced relation by a series of transverse bands or hoops fixedly engaged therewith at suitable intervals in the length of such uprights. Poles made up in this general manner. are known in the art, and my present invention consists essentially in the construction of a stronger and more rigid pole of fewer parts, and at the same time I am enabled to effect economies and saving of time in construction.

My invention will be clearl -understood from the following detaile description taken in connection with the aocom anying drawings and the matters of nove ty wil thereafter be particularly pointed out in the appended claims.

Referring to said drawings; Figure 1 is an elevation showing a general View of a telegraph or like pole constructed in accordance with my invention. Fig. is an enlarged transverse section adjacent one of the securing bands or hoops. Fig. 3 is a like side elevation showing one of the bands in position on the uprights, and Fig. 4 is a sectional detail view showing a modified form in certain particulars The series of uprights 1, preferably three in number are in the illustrated embodiment of the invention made up of plate nuntor-ial formed into U shape, and the same when assembled with the securing bands in place converge toward the top as is usual in this type of pole. The bands 2 are likewise conveniently formed of plaicmaterial of suitable width, the some l'cing fashioned into a generally triangular shape with recesses in the corners to closely embrace the said uprights as shown at 4. The straight m'mncciing portions of said hoops, in accord auce with my invention, are corrugated or dished as shown at 3 through most of their extent to eflect greater strength and rigidity and for a further purpose which will hereinafter appear. I

In the construction of the ieral type of Epic to which my invention longs, it has n the practice heretofore so far as I am aware to. secure the hands to the uprights by bolts or like securing devices passing of course through holes formed in said memhere. It will be obvious that all such holes tend to weaken the structure as well as reuir' time for their production and for e so neat assembling of the arts.

In carrying out my invention, assemble the legs or uprights with the transverse bands 2 and secure the same rigidly and effectively by welding, such welding being preferably efl'ected electrically. By this procedure I produce a very-strong, substantial pole practically in one piece, and instead of the structure being weakened by bolt holes as heretofore, it is actually streggthened and made more rigid by the weld joints.

I have heretofore referred to the corrugating or dishing of the bands 2. In addition to the strengthening effected by this feature, the same is of importance in conncction with the welding operation by which the bands and uprights are united. In carrying out such welding it will be apparent that the heat required will tend to expand and distort the bands 2, and this mi ht even impair the correct proportions and a lnement oi the pole. By the use of the dished or corrugated form as shown at 3, however, such expansion and tendency to distortion is taken up in the corrugation and does not affect the general relation and alinement of parts to any appreciable extent.

In Fi 4 is shown a modified form of upright w erein the sides of the U are elongated and flared outward as shown at 5, thus affording a longer engaging surface with the bands and tending to ater rigidity. If desired, I may pass olts. as 6, through such extensions and the bands, or the same may be welded in the same manner as before described, or. both means of securing the parts may be employed.

By arranging the uprights, U-sha-ped in cross section, so that the inner or concave side of each upright faces the center of the pole, it permits the intermediate sections 3 of each band to expand or contract, due to inc changes of temperature, for the reason that The broad means for clam ing the uprights to the bands, I have 0 aimed in my (fending application, Ser. No. 497 ,7 28, filed Having now fully described my invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. A pole con'iprising a series of uprights U-shaped in cross section and having the open side inward, said side being entirely free of reinforcing or fastening means, and means for securing the same in spaced apartrelation, said means comprising a series of bands encompassing the outer U-shaped side of each of said uprights and permanently connected thereto in the area of such wntact.

2. A structure comprising a plurality of longitudinal members U-shaped in cross section and having the open side inward, said side being entirely free of reinforcing or fastening means, and means for securing the same in spaced apart relation, said means cmuprising a. series of bands wrap ed around the outer U-shuped side of each of suid memhers iuid welded thereto in the area of such contact, said bands having their intermediate portions corrugated for the purpose set forth.

3. A pole comprising a series of uprights U-shaped n cross section and having the open s1de 1nward, said side being entirely fme of reinforcing or fastening means, and a series of transverse bands surrounding the outer U-shapecl side of the uprights and securing the same in spaced apart relation, said upright-s and bands being joined by molecular union of the connecting portions thereof.

In testimony whereof I aflix my signature 1n presence of two Witnesses.

BRODER-ICK HASKELL. lVit-nesses:

B. A. Knmsz, L. A. ARNOLD.