US1119521A - Transmission-pole. - Google Patents

Description

R. L. LUSK & F. S. MARBURY. TRANSMISSION POLE. APPLICATION FILED MAY 27, 1914.

' Patented Dec. 1, 1914.

2 SHEETS-SHEET 1.

zmmn iwwW WITNESSES I115 Nah-R15 PETERS 60.. FHoTn-LITHa, WASHING TON, D. c.

R. L. LUSK & F. S. MARBURY. TRANSMISSION POLE. APPLICATION FILED MAY 27, 1914,

1,119,521, Patented Dec.1,1914.

2 SHEETS-SHEET 2.

W/ TNESSES THE NORRIS PETERS CO PHOTU-LITHOH WASHINGTUN. D. C.

UNITED STATES PATENT OFFICE.

ROSS L. LUsK AND rnancrs s. MARBUILY, on NEW YORK, N. Y.

TRANSMISSIODLPOLE'.

Specification of Letters Patent.

Patented Dec. 1,1914.

Applicationfiled May 27, 1914. Serial No. 841,195.

To all whom it may concern Be it known that we, Ross L. FRAN crs S. MARBURY, citizens of the United States, residing at the borough of. Manhat: tan,-city, county, and State of New York, have invented an Improvement in Transmission-Poles, of which the following isa spec1- fication.

Our present invention relates to poles for 'angles have been used as uprights, it. has

been customary to employ these uprights in pairs, or multiple pairs, so that straight line cross straps might be used. l/Ve are also aware that poles of this description havebeen constructed with three uprights, but in this class of poles, either a special angle iron has been employed, in order to use straight line cross straps, orround or channel irons have been employed, together with suitable spacers placed and extending between the same and adjacent straps extending around the same and connected thereto or to the spacers or to both.

Now the object of our present invention is the provision of a transmission pole, constructed with three regular stock 90 angle irons as uprights, together with suitable cross straps, the ends of which are connected to and lie parallel with the faces of the uprights, while the intervening portions of the straps, that is to say, those portions extending between the uprights, curve so that the uprights may assume their proper equi-distant relationship in the completed structure.

As is customary in this class of transmission poles. the uprights preferably converge from the base toward the top or a point adjacent thereto. At the lower end of the pole. constructed in accordance with our invention. the same may be made to receive cross timbers, in order to form an anchorage to assist in supporting the pole when placed in the ground, and preferably at the upper end of the pole. and for a predetermined dis tance, the upright members are parallel to one another, to provide a cross arm section LUsK. and

of the pole, to which, in a suitable manner, one or morecross arms may be secured.

In the drawing, Figure 11s an elevation of the lower portion of the pole constructed in accordance with our invention, showing the base thereof set in the ground. Fig. 2 is an elevation of the upper portion ofthe pole. Fig. 8 is a plan of one of the cross arms. Fig. 4. is an enlarged cross section on line 4, 4, Fig. 1. Fig. 5 is a plan, and cross section. Fig. 5 is a similar View, showing the manner in which each cross arm is connected tov the pole, and Fig. 6 is a cross sec tion on lines 6,.6, Fig. 2, Figs. 5, 5 and" 6 being on an enlarged scale.

Referring to the drawing, it will be seen that in constructing a transmission pole made in accordance with our invention, we employ three regular stock 90 angle irons which are indicated at 10, 11 and 12. These angle irons, as is customary, when the pole is completed, preferably converge from the base to a point at a predetermined distance therefrom. c i

The angle iron uprights are connected by suitable straps and bolts or rivets, the distant faces of adjacent uprights being thusv connected by these straps. The straps connecting the distant faces of the poles 10 and 11 are indicated at 13. The straps connecting the distant faces of the apparatus 10 and 12 are indicated at 14c, and similarly the straps connecting the distant faces of the uprights 11 and 12 are indicated at 15. These straps, as will also appear, from Figs. 1 and 2 of the drawing, extend in a zig-zag path from the lower end of the pole to a point a predetermined distance above the ground.

In the construction of the pole, the adjacent" ends of each set of straps are connected by rivets, bolts or otherwise, to the members of the uprights, as hereinbefore described, and the uprights brought into an equi-distant relationship before the last joints between the same. and the straps are made, so that in so doing, the straps are bent or curved between the respective uprights, the- By reference to Fig. 1, it will be seen that we may make provision for the use of timbers, indicated at 18 and 19, when the pole is set in the ground, by placing predetermined cross straps at right angles, or substantially right angles to the uprights, one set of such straps being indicated at 16 and 17 in Fig. 1.

At the base of the pole, the lower ends of the uprights are preferably provided with brackets 21, suitably secured thereto, and connecting straps :22, extending between and secured to the brackets, so that the lower ends of the uprights are securely connected together. At the lower end of the pole, we may also make provision for the use of timbcrsQZl and 21, by means of placing the straps at right angles to the uprights, these timbers and ill, as Well as the timbers 18 and 19, acting as anchors to assist in supporting the pole when the same is placed in the ground, indicated at 20.

As hereinbefore stated, the upright members of the pole converge from the base for a predetermined distance, above which, in accordance with our invention, the uprights preferably extend parallel to each other, as indicated at 26, in Fig. :3, in order to provide a cross arm section for the pole. The uprights in this cross arm section may be connected by the use of suitable U-shapcd straps 27, as indicated in Fi 6, by reference to which it will be seen that the straps at their ends are suitably riveted to the upright members of the pole. Ne also employ one or more cross arms, as indicated at Fig. 2, and each of these, as indicated in this figure and in F 3, comprises a pair of channel irons 28 and 29, extending parallel to each other a predetermined distance in their central portions, and converging at either side thereof to the ends of the cross arm. In each cross arm the channel irons thereof are connected by strap members 30 by being riveted or bolted, or otherwise secured thereto, thereby uniting the channel irons and formingthe cross arm. In each Regina 01 this patent may be obtained for of the strap members 30, there is provided a hole or aperture 31, adapted to receive a pin upon which an insulator is placed for connecting the t"1I1S111lSSl011 wires or other devices thereto. As is also indicated in Figs. 3, 5 and 5, the member 28 of each cross arm is provided with brackets 32 adapted to receive between the same and the adjacent portion of the channel iron one of the upright members of the arm section of the pole, to which the same is suitably riveted, and the corresponding portion of each member 29, on its inner face, is also provided with brackets 33 and 3-1, to which the opposite or other upright members of the pole are secured by suitable rivets or otherwise, it being understood that as clearly shown in Figs. 5 and 5, the parts of the brackets 32 are made at obtuse angles to one another, whereas the parts of the brackets 33 and 31 are made at acute angles to each other, in order to properly it over the parallel upright members of the pole. As will also ap pear from Fig. 2, the upright members at their upper extremities may be caused to so taper as to meet each other, and adjacent the meeting points may be suitably connected.

We claim as our invention:

1. A transmission pole comprising three equi-spaced 90 angle uprights, series of bowed cross straps, and means for connecting the ends of the cross straps to the faces of the uprights.

2. A transmission pole comprising three 90 angle upri hts, a series of cross straps extending between and so connected to the said uprights that at theyends the said stra" :5 lie parallel to the faces of the uprights, while the intervening portions of the straps are bowed.

Signed by us this 25th day of May, 1914-.

ROSS L. LUSK. FRANCIS S. MARBURY.

Witnesses M. V. Foauns'r, A. M. GRANGER.

five cents each. by addressing the Commissioner of Patents,

Washington, D. C.

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