US1672974A - Concrete column - Google Patents

Description

June 12, 1928, 1,672,974

R. s. ELLIS CONCRETE COLUMN Filed May 26, 1927 FIGJIZ L5] Y Patented June 12, 1928.

PATENT OFFICE.

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A pplioationfiled Kay 26,

My invention may be advantageously employed in reinforced concrete structures especially adapted for supporting electrical conducting wires, lamps, etc.; assubstitutes for the wooden poles heretoforejemployed for such purposes; Such structures must be climbed by linemen who attend to the primaryplacing and repairs of the wires and other articles supported by such structures. Such linemen are equipped with what are known as climbing spurs, to wit, steel lug members which are strapped upon their legs and project inwardly so that they may be thrust into wooden poles, to climb the latter. Of course, such climbingydevices are of no" use connection with an ordinary concrete column, which cannot bepenetrated thereby and, heretofore, such columns have been provided with laterally projecting members forming avertical series of ladder elements which may be engaged by the hands and feet of the operators, without such spurs. However, the cost of concrete columns provided with such projections is approximately double that of plain columns and if the project-ions are of concrete, they are apt to be broken off in the handling of such columns preliminary to their erection and by the action of frost thereafter and, if such projections are formed of metal, they are not only morecostly, but disfigure the columns by stains reduced bycorrosion of the metal which a sotends todisru t the column and loosen the metal members y the expansion which is incidental to such corrosion. i

It isnecessary to provide linemen with such spurs to operate upon lines which include even a few wooden poles, and it is the purpose and effect of my invention to provide concrete columns which may be con structed at practically the same cost as plain columns; and which are adapted to be climbed the use of the samespurs neces sary for climbing wooden poles, but which cannot he climbed without such spurs, beau hey have 1 Projec posite aides there f, each of. sa d re els,

members wh h. may beengag y i e t hand o 1937. Serial 80,194,307.

having itsinner end closed and nearer tothe bottom of the column than its outer end, and

having its walls at its outer end downwardly converged; whereby said recesses are not onlyadapted to receive andsecurely engage downwardly inclined climbing spurs, but are also adapted to receive spurs upon metallic fixtures for holding cross bars, guy cables, e c.

My invention includes the various novel features of construction and arrangement of such columns and fittings, hereinafter more definitely specified. Concrete columns ofthe generic character herein contemplated, are the subject matter of my copending application Serial No. 32,324 filed May 23, 1925 for Letters Patent of the United States; 0t which this application is, in part,a division. a

II I SHidj drawings Fi I is a sideelevation of a column convenient y embodying my invention and provided with cross bars for supporting line wires and engaging guy wires. i

:Fig. II is a. fragmentary plan sectional View of said column and its fixtures, taken on the line II, II in Fig. I. V

Fig. III is a fragmentary perspective View of the lower cross bar and guy wires indicated in Fig. I. i

Fig. IV is a' fragmentary elevation of a concrete column embodying a modified form of my invention. 1 i i Fig. is a fragmentary plan view taken on the line V, V in Fig. IV. Fig. VI'is an elevation,-on a smaller scale, ind cating a concrete column embodying my invention, with appurtenances used as a support for an electric lamp, in lieu ofthe super-structure shown in Figs. I and IV for supporting electrical conductors.

In said figures; 1 is a concrete monolith having a continuous exterior surface unbroken by) any metal projecting therethrough; ut preferablycontaining a congeries of longitudinally extending metallic reinforcements 2 which are imbedded there in such spaced relation to the outer surface thereof as to be immune frOmpercoIation ofmoisture under ordinary conditions of exposure to the weather. 4 i V As shown; such monoliths 1 are prefab .e lr farmed rectaeeu e W sec i n eet of a lineman.

.bars 9 are adapte and said reinforcements 2 are disposed therein in symmetrical relation with the axis thereof, as indicated in Figs. II and V by properly grouping them in connection with recessed seats in the precast cap memher 4 and base member 5 with which the concrete aggregate of the monolith 1 is integrally interlocked in any suitable manner; for instance, as indicated in Figs. I and IV and by the method and means claimed in Letters Patent of the United States No. 1,563,615 granted December 1, 1925. Said monoliths 1 are provided with vertical series of pockets 7, so spaced upon opposite sides thereof that they-may be readily enaged by climbing spurs clamped upon the I As .indicated in dotted lines in Fig. I; each of said recesses has its inner end closed and nearer to the bottom of the column than its outerend and, as indicated in full lines in Figs. I and IV, each of said recesses has its walls at its outer end downwardly converged; whereby said recesses are adapted to receive and securely engage downwardly inclined climbing spurs, but are not adapted for engagement by the fingers or toes of any one attempting to climb the column.

I provide metal cross bars 9 with spur projections 10 respectively adapted to fit the outer plane face of the columns 1 and project into wedged engagement with the spur pockets 7 which are recessed therein. As indicated in Fi s. I and II; such cross to hold wooden cross bars 12 which may serve as supports for line wires and may be secured in rigid relation with any such column 1 by U-bolts 13 having their ends extending through holes in the bars 9 and provided with nuts 14: and washers 15. As indicated in Figs. I and II, such U-bolts 13 may be rovided at their bights with clamping mem ers 17 and spurs 18 fitted to securely engage the spur pockets 7 recessed in the face of said column 1; or such clamping members may be omitted and the cross bars upheld merely by the spurs 10. V 1 Moreover, asindicated in Figs. I and III, such cross bars 9 may be used to connect guy wires 20 with the respective columns; such wires extending to suitable anchor members 21 set in the round in spaced relation with the bases 0 the columns.

In the form of my invention shown in Figs. IV and V; the concrete column 1 is also encircled with annular recesses 22 adapted to receive respective encircling bands 23. Said bands 23 may be of any convenient form and unitary. However, I prefer to make them of the form shown in Fig. V, wherein the hand 23 is formed of two oppositely counterpart sections connected by bolts 25 and nuts 26. Such separable construction and arrangement is preferable, so

that the bands may be readily replaced if they are broken. As shown in Fig. V, each section of said band 23 is provided with laterally extending lugs 27, to which coupling beams 28, which connect said bands 23, are rigidly connected by bolts 29 and nuts 30. As shown in Figs. IV and V, said coupling beams 28 serve to support the cross bars 31 and 32 which are conveniently attached thereto by lag screws 34 or by bolts, and extend in transverse relation to each other and to the axis of the column 1 and are adapted to support lines of electrical conductors extending in such transverse relation upon suitable individual supports attached to said cross bars.

The construction and arrangement above described are designed and adapted for supporting electrical conductors of any kind. However, columns constructed and arranged as above described ma of course, be used for other urposes and in Fig. VI, I have shown sue a column 1 stripped of the timber superstructure indicated in Figs. I and IV, and carrying, in lieu thereof, the horizontally extending strut arm 36 connected to the lower band 23 and having the tension rod 37 extending from the upper band 23 to the outer end of said strut 36 where the electric lamp 38-is sus ended.

Therefore, I do'not esire to limit myself to the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein without departing from the essential features of my invention, as defined in the appended claims.

I claim:

1. A concrete column having two longitudinal series of shallow spur recesses upon opposite sides thereof, each of said recesses having its inner end closed and nearer to the bottom of the column than its outer end and having its walls at its outer end downwardly converged; the surface of said column including said recesses being devoid of projections; whereby said recesses are adapted to receive and securely engage downwardly inclined climbing spurs; but said column does not afford any hold for any other climbing means.

2. A concrete column having a plane face, with a spur recess extending inwardly therefrom; and a metallic fixture having a spur fitted to said recess; whereby said fixture is supported in engagement with said column.

3. A concrete column having a plane face, with a spur recess extending inwardly therefrom; a metallic fixture havin a spur fitted to said recess; whereby said fixture is supported in engagement with said column; and a lJ-bolt embracing said column and extending through said fixture, arran ed to hold the latter against said column ace. 1

4; A concrete column having a planeface, recess; whereby said fixture is supported in with a spur recess extending inwardly therewedging engagement with said column. from; saidrecess having its inner end closed In testimony whereof I have hereunto l0 and nearer to the bottom of the column than signed my name at Reading, Pennsylvania, 5 its outer end and having its walls at its this eighteenth day of May, 1927.

outer end downwardly converged; and a metallic fixture having a spur fitted to said i g RUSSELL SCOTT ELLIS.

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