US1834535A - Tubular pole - Google Patents

Description

.' l, 1931- E. w. RIEMENSCHNEIDER 1,834,535

TUBULAR POLE 2 Sheets-Sheet Filed July 5, 1928 m m Il if? @ggf .linlslillll A c attorney,

Dec. l, 1931.

E.. W. RIEMENSCHNEIDER TUBULAR POLE FlGd July 5, 1928 2 Sheets-Sheet 2 Patented Bec. l., 1931 @stares PATENT Yorifice EDMU'ND W. REMENSCHNEIDER, OF CANTON, OHIO, ASSIGNOR TO THE UNION METAL MANUFACTURING COMPANY, OE CANTON, OHIO, `A CORPORATION OF OHIO A TUBULAR Porn Application filed July 5, 1928. Serial No. 290,357.

rlhe invention relates to tubular poles comprising a sheet metal shaft mounted upon a base and supporting a capital or the like. Such poles may be used for various purposes and the invention is illustrated as applied to lighting standards and the like.

Such poles are commonly erected or 1nstalled upon a concrete foundation and it has been common practice to provide anchor belts imbedded in the concrete and extended through the base, being connected to the upper portion thereof.

For the purpose of assembling the shaft and capital upon the base, tie rods have been commonly used connected at their lower ends to the base and at their upper ends to the capital, clamping the tubular shaft between the base andcapital.

Such tubular shafts are ordinarily tapered toward the top and this necessitates the use of tie rods ofsmall diameter in order to accommodate the tie rods in the upper portion of the shaft together with the usual wires or cables which are placed therein.

It has thus been found that these tie rods of considerablelength and small diameter stretch or elongate due to wind pressure and the like, causing more or less deflection of the shaft.

T he object of the present improvement is to provide a pole comprising a tubular shaft connected at its lower end to a base as by short tie belts located through a reinforcing flange within the lower end portion of the shaft; and a capital connected to the upper end of the shaft as by short tie bolts located through a reinforcing flange within the up'- per end of the shaft.

The improved construction overcomes the deflection of the shaft common in the ordinary type of poles above referred to because the tie bolts are considerably shorter than the` usual tie rods and thus 'the elongation or stretch in these tie Vbolts will be inappreciable.

The tie bolts connecting the lower end of the shaft to the base may be of larger diameter than is required for the tie bolts in the upper end of the shaft, thus strengthening the structure at the point where it is sub? ject to the greatest strain and lightening the weight at the point where there is very little strain.

The reinforcing flanges provided in the upper and lower ends of the shaft for con` nection to the tie bolts reinforce the shaft at the end portions where it is naturally weak,

giving the greatest resistance to compression strains as well as to impact.

An embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical sectional view vthrough the improved pole;

Figf, an enlarged transverse section on the line 2-2, Fig. 1; and

Fig. 3, a similar view on the line 3-3, Fig. 1.

Similar numerals refer to similar parts throughout the drawings.

The concrete foundation is indicated at 1, provided with the usual anchor bolts 2 imbedded therein and extended up above the upper surface thereof. If desired, this concrete foundation may extend up' above the ground level-and within the sub-base 3 formed of one or more sections of cast iron or the like.

The base d which may be formed in one or more pieces is mounted upon the foundation or sub-base and provided in its upper portion with an internal flange 5 through which the upper screw threaded ends 6 of theA anchor bolts are located, nuts 7 being placed thereon for rigidly securing the base in position.

The tubular shaft 8 may be a tapered fluted shaft as illustrated, the lower end of which is adaptedto be received within the annular seat 9 at the top of the base. 4A reinforcing Y flange- 10 may be welded or otherwise secured drawing the shaft tightly down upon the an- .l

nular seat 9 of the base.

Y at or near. the upper portion of the shaft and tie bolts 2O are secured, at their lower ends, to this flange as by the nuts 2l.

These-tie bolts extend up through; flange 22 in the capital, nuts 23 being inounted'upon the threaded extremities 2l thereof for. drawing the Capital tightly downrupon the shaft.

Any suitable device may be mounted upon.

the capital such as the lighting fixture shown Vgenerally at 25 Ywhich may be connected therel to vby the bolts 26'.

From the above it will be seen that with this-construction the tie bolts being ofconsiderably lessv length than the usual tie rods, the elongation-.or stretch thereof will be less, resulting in ,considerably less deflection.

It will. also be seen that bolts of larger diameter than theusual tie rods can be used Y for attaohingithe loweipoit-ion of the shaft to the base.2

This result-s in a saving of material as bolts of'smaller diameter may be used for connecting the capital to the upper end of theshaft where there isV vveryv little strain while the larger bolts are provided the point where there is greater strain. .y

This results in less weight and a reduction vin the cost of the structure. l

It will also be seen that the flanges 10 and 19 act as reinforcements to stiifen the shaft at lits ends where it is naturally weak, thus giving greater resistance to compression strains andi impact:

5I claim:

, 1.-V A pole comprising a base, a tubular shaft mounted on the base, a capital mounted on the shaft, reinforcing fiangeson the end portions ofthe tubular shaft and extending inward therefrom, an annular seat on' the base, an annular: seat on the Capital, connecting means between the'upper'portion of the base and the lowe1"1iange of the shaft for drawing the lower end of the sha-ft tightly down upon the base annular seat, andA connecting means betweenA the capital and upper flange of the shaft for drawing the'capit'al annular seat tightly down on' the upper end of the shaft.

2'. poleoomprising a base7 a tubular shaft mounted on the base, a. capital mounted on the` shaft, reinforcing flanges on the end portions of the tubular shaft' and extending inward therefrom, an annular seat on the base, an annular seat on the capital, tie bolts botweenthe upper'portion of the base and lower flange ofthe shaft for drawing the lowerend of. the shaft tightly down upon the base annulalrseat, and tie bolts between the capital andupper flangeof the shaft for drawing the EDll'IUND W. RIEMENSCHNEIDER.

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