US997435A - Column or post. - Google Patents

Description

manned Ju1y11, 1911.

2 SHEETS-SHEET 1.

W. J. J. BOWMAN.

COLUMN 0R POST. 1

APPLICATION FILED JULY I9, 1910.

l 'coLuMBlA PLANOGRAPH C0.. WASHINGTON. n. C.

W. J. J. BOWMAN.

COLUMN 0R POST.

APPLICATION FILED JULY 19', 1910.

Patented July 11, 1911'.

2 SHEETS-SHEET 2.

UNTTEE sTATEs PATENT oEEioE.

WILLIAM J. J'. BOWlVIAN, OF TRENTON, NEW JERSEY, ASSIGNOR TO THE J. L. MOTT IRON WORKS, A CORPORATION 0F NEW YORK.

COLUMN OR POST.

To all whom t may concern.:

Be it known that I, vWILLTAMV J. J. Bow- MAN, a citizen of the United States, and a resident of Trenton,in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Columns or Posts, of which the. following is a specication.

My invention relates broadly and generally to new and useful improvements in columns or posts, and more particularly o-f that character or type adapted to be em,- ployed as supports for electric or other street lights, and the object is to provide a post for general use but capable of the particular use mentioned which will be o-f cast metal but so constructed that the structure will be braced or reinforced so as to add to its tensile or breaking strength.

Before proceeding` with a detailed description of my invention, I would state that the posts or columns used as lamp posts or as supports for electric lights are usually made of cast metal, such as cast iron, which is brittle and likelyto be broken and fractured when subjected to a hard blow, and it has been experienced that many serious accidents have occurred caused by falling parts of broken posts which have been struck by a hard blow, as by a truck or wagon coming in contact therewith, and it is the purpose of the presentinvention to construct a post which will be maintained erect and intact even when broken or fractured.

A further object is to provide means for tying or securing the several parts of a composite or multi-part post together so that said parts will be rigidly connected.

The invention consists in the Aimprovements to be fully described hereinafter and the novelty of which will be fully pointed out and distinctly claimed.

I have fully and clearly illustrated my invention in the accompanying drawings to be taken as part of the specification and whereinl Figure l is an elevation partly in longitudinal central section of a post or column embodying my invention; Fig. 2 is an enlarged detailed longitudinal section through the upper end portion of the column showing the manner of connecting the cap piece Specification of Letters Patent.

Application led July 19, 1910.

Patented July 11, 1'911.

serial No. 572,700.

and internal reinforcing member; Fig. 3 is an enlarged detailed longitudinal section through an intermediate portion of the post or column; Fig. 4 is an enlarged detailed longitudinal Sectio-n through the base or lower portion of the post or column; Fig. 5 is an enlarged sect-ion on the line 5-.5 of Fig. l; Fig. 6 is an enlarged section `on the line 6--6 of Fig. l; Fig. 7 is an enlarged Asection on the line 7-7 of Fig.-1; Fig. 8

is an enlarged section on the line 8-8 of Fig. 4; Fig. 9 is an enlarged section on the line 9 9 of Fig. 4.

Referring to the drawings, 1 designates the base of a column or post such, for instance, as is used for the support of street lights, said base comprising an upright hollow portion 2, formed at its lower end with a foot 3 adapted to rest upon the ground or other surface upon which the colmun or post is erected. Seated wit-hin the said base l, is the main or body portion 4 of the column or post, of the desired height and diameter, the lower portion thereof 4a, which' is located within the said base, being preferably of less diameter than that part which extends above the base, a shoulder 5 being or .arrangement of the base of the column.

The ody portion 4 of the column is preferably` formed of cast metal such, for instance, as cast iron which, it is well known, is more or less liable to be broken when subjected to a hard blow, and it is the purpose of my invention to provide means whereby this body portion will be braced and sustained, so that if subjected to a blow suificient to fracture the same, the broken parts will be held intact and danger from such parts falling upon persons or property will be avoided. I attain this re- Suit by casting wit-hin the wall of the column longitudinally extending reinforcing members which preferably will be in the form of wrought iron bars 6, which may be arranged in sets extending respectively from each end of the column toward the opposite end thereof, the inner ends of the sets overlapping each other at a point intermediate the ends of the column. These bars are distributed around the wall of the column and the inner ends of the bars of one set are preferably so spaced that at the point where they overlap the ends of the bars of the opposite set, said overlapping ends are arranged equidistant between the adjacent bars of the opposite set. These overlapping bars serve to additionally brace and reinforce the column at its central portion, and I may, if desired, additionally strengthen the same at this point by casting integral therewith an internally projecting annular flange 7, which is preferably located at a point intermediate the overlapping ends of the reinforcing bars 6. Another object in overlapping the bars at the central portion of the column is to facilitate the casting of the column in that by having the bars of less length than that of the column it is easier to support the inner ends of the bars within the flask or mold, so as to maintain the same straight and in proper parallelism, than would be the case were the bars of the same length of the column.

It will be noted that the lower portion 4a of the column which sitsin the base 1, is of less diameter than the main body portion of the column and that the lower ends of the reinforcing bars which pass through said part 4a are only partially embedded within the column, the same being deflected inward from the position they assume in the upper portion of the column at a point adjacent the shoulder 5. Upon examination of the Figs. 5, 6 and 8 it will be noted that the reinforcing bars 6 are embedded in ribs 8 extending longitudinally of the column, said ribs serving to reinforce and add rigidity to the column.

Mounted upon the upper portion of the column 4 is a head piece consisting of a sleeve 9 having an annular extension 10, seated within an annular recess 11 in the upper part of the column, said sleeve having an internally threaded aperture 12 to receive the upper threaded end 13 of a tubular bracing member 14 which extends throughout the column and base and is connected to the lower part 4a of the column by means of a nut or nuts 15 threaded onto the lower end thereof, a washer 16 being interposed between said nuts and the lower end of the member 14. The upper end of the sleeve 19 is formed with an internally threaded aperture 1'7 into which is threaded the lower end 1S of the bracket arm which supports the light. The construction of this bracket being immaterial, I do not show or describe the same completely but merely show the bottom portion, or lower end thereof, threaded into the head piece 9, which I deem suiiicient for the purposes of this application. This internal bracing member 14 not only serves to rigidly brace the parts of the column and maintain the same in proper relation, but also serves to connect the parts rigidly together.

By the construction shown and described it is apparent that the parts of the column are rigidly braced and reinforced, and that should the post become broken or fractured the reinforcing rods will serve to hold the broken parts together.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A hollow cast metal column or post having ribs extending longitudinally of the inner surface thereof and reinforcing members cast in said ribs.

2. A hollow cast metal column or post having ribs extending longitudinally of the inner surface thereof and reinforcing members cast partly in said ribs.

3. A hollow cast metal column or post having an intermediate annular collar therein, and longitudinally extending reinforcing members in the post, said members overlapping each other at said collar.

4. A hollow cast metal column or post having longitudinally extending reinforcing members cast therein, part-s of said members 100 projecting out of the column into the space within the same.

5. A hollow cast metal column or post having longitudinally extending reinforcing members cast therein, parts of said members 105 projecting out of the column into the space within the same, and extending longitudinally thereof.

6. A hollow cast metal column or post having longitudinally extending reinforcing 110 members cast therein, parts of said members projecting out of the column into the space within the same, and extending longitudinally thereof in contact with the inner surface of said column or post.

v7'. A hollow cast metal column having sets of reinforcing members cast therein, and an intermediate stiffening collar, said sets each extending substantially from one of the ends of the post or column toward the opposite 120 end, and overlapping each other at said collar.

8. A hollow cast metal column, consisting of a hollow body portion and a part of less diameter than the body portion, and rein 125 forcing members wholly embedded within the body portion but emerging therefrom and lying in contact with the inner surface of the part of less diameter.

9. A hollow cast metal column or post 130 having inwardly directed projections on the In testimony whereof I have signed my inner Surface thereof vand reinforcing memnaine to this specification in the presence of lo bers held by said projections. twov subscribing witnesses.

l0. A hollow cast metal column or post having inwardly directed project-ions on the VILLIAM J J' BOWMAN inner surface thereof and reinforcing mem- Witnesses: bers extending longitudinally of the column l J. SPENCER VOORHEES, or post and held by said projections. J. T. LANGAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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