US1200453A - Metallic pole. - Google Patents

Description

A. J. BATES.

METALLIC POLE.

APPLICATION FILED DEC. 22. I915;

1 00,453. Patented 'O ct. 10, 1916.

UNITED STATES PATENT OFFICE.

ALBERT J. BATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES EXPANDED STEEL TRUSS 00., OF WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

METALLIC POLE.

Specification of Letters Patent.

Patented Oct. 10, 1916.

To all whom it may concern Be it known that I, ALBERT J. BATES, a citizen of the United States, residing at ()hiiago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Metallic Poles, of which the following is a specification.

This invention relates to metallic poles adapted for use in supporting wires and for a variety of other purposes for which wood and fabricated metallic poles have heretofore been employed.

It is the object of my invention to provide a metallic pole of strong and rigid construction, capable of being manufactured from large integral units and, therefore, comprising a minimum number of separate parts.

Other objects and advantages of my invention will be apparent as it is better understood by reference to the following specification when read in connection with the accompanying drawing illustrating a preferred embodiment thereof in which Figure 1 is a side elevation of a pole according to my invention; Fig. 2 is an enlarged side elevation illustrating the details of the invention, portions of the pole being broken away, and Fig. 3 is a horizontal section on the line 33 of Fig. 2.

Referring to the drawings, 1 and 2 indicate the upper and lower portions respectively of the pole. The lower portion 2 comprises a pair of tapered members 3, each of which consists of longitudinal side portions 4 having integral flanges 5 and a zigzag integral truss member 6 between the side portions 4. The tapered members 3 are formed from single rolled sections by shearing the web thereof to provide a plurality of staggered slits after which the section is heated and the flanges 5 are pulled apart by suitable mechanism, which forms no part of the present invention, to expand the section and form the integral zigzag truss member 6. The tapered members 3 are secured together with their flanges abutting by means of rivets 7.

The upper portion 1 of the pole comprises a single member 3, identical in form and constructed in the same manner as the members 3 and the lower end thereof is sccured to the upper ends of the, members 3 by means of plates 8 riveted at 9 to the outer flanges of the upper and lower portions 1 and 2 of the pole.

The pole, as illustrated, is set in a concrete base 10, although this is not essential and forms no part of the invention. A crossarm 11 is secured, if desired, to the upper portion 1 and is rigidly held thereto by means of braces 12. Where the pole is intended, however, for uses other than for supporting Wires the cross-arm 11 may obviously be omitted.

It will be understood from the foregoing that I have perfected a metallic pole which 1s constructed of three integral units with the addition of the plates to secure the upper and lower portions together. The pole may be constructed in lengths of sixty feet or more, the separate units being thirty feet in length, and obviously such a pole possesses numerous advantages over -olvs of the prior art since it is practically indestructible and hence will last much longer than a wood pole and is much easier to construct than a fabricated pole of similar length, which would involve a large number of separate parts secured together by rivets. WVood poles of great length are extremely scarce and eXpensive and the large amount of work necessary to construct a fabricated pole makes such a pole equally if not more expensive.

It will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing any of its materal advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. A metallic pole comprising a base portion and an upper portion, and means for securing said portions together, said base portion comprising a plurality of flanged members secured together with their flanges abutting, each of said flanged members having zigzag truss elements integral with and forming triangles with said flanges and said upper portion comprising a single flanged member having zigzag truss elements integral with and forming triangles with the flanges of said member.

2. A metallic pole comprising a base portion and an upper portion, and plates riveted to and connecting said portions. said base portion comprising two tapered flanged members secured together with their flanges abutting, each of said flanged members having zigzag truss elements integral with and forming triangles with said flanges and said upper portion comprising a single tapered flanged member having zigzag truss elements integral with and forming triangles with the flanges of said member.

3. A metallic pole, comprising a base portion and an upper portion, and means for securing said portions together end to end, said base portion comprising a plurality of tapered flanged members secured together with their flanges abutting, each of said flanged members having zigzag truss elements integral with and forming triangles with said flanges and said upper portion comprising a single tapered flanged member having zigzag truss elements integral with and forming triangles with the flanges of said member.

ALBERT J. BATES. Witness:

M. A. Knmm.

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