US1121520A - Pole. - Google Patents

Description

A. H. MATTHEW.

POLE.

APPLICATION FILED MAY 13, 1913.

1,121,520.. Patented Dec. 15, 1914.

WITNESSES INVENTOR I 0.?71203 Jf-JdaZZ/ze 8y ATTORNEYS AMOS H. MATTHEW, OF COLVILLE, 'WASHINGTON.

POLE.

Specification of Letters Patent,

Patented'Dec. 15, 1914.

Application filed May 13, 1913. Serial No. 767,310.

To all whom it may concern:

Be it known that I, AMosH MATTHEW, a citizen of the United States, and a resident of Colville, in the county of Stevens and State of Vashington, have invented a new and Improved Pole, of which the following is a full, clear, and exact description.

My invention relates more particularly to telegraph and telephone poles, and it is a design of the invention to produce an improved metallic, hollow pole adapted to receive a filling of sand or other sound-deadening material.

It is also a design of my invention to provide a pole which may be shipped in sections and conveniently erected.

It is also a design of my invention to provide an improved form of erossarm and insulator supports, as well as novel means for securing the erossarm and insulators.

It is a further design of my invention to improve in various particulars poles of the general character indicated, to the end that economy in manufacture and durability may be promoted.

Referrence is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of a pole embodying my invention, parts being in section; Fig. 2 is a sectional elevation at right angles to Fig. 1; Fig. 3 is a cross sectional view taken above the erossarm; Fig. 4 is a detail cross sectional view of the erossarm and insulator support thereon; and Fig. 5 is a horizontal section taken below the crossarm, the view showing an annular element to receive guy wires.

In constructing a pole in accordance with my invention, a suitable base 10 is provided; supported thereon are tubular sections 11, 12, the pole being made in as many sections as may be desired, two being shown in the example illustrated. The upper end 13 of one section tapers inwardly and the lower end of the next section flares outwardly, as at 14, to slip over and receive the tapered end 13. The sections are made hollow in order to receive a filling 15 of sand, asbestos, or other approved sound-deadening material. Preferably the pole tapers from near the base toward the top. At various points along the pole at alternately opposite sides,

foot brackets are provided, the inner ends terminating in threaded pins to receive nuts 16 on the interior of the pole.

The upper end of the top section of the pole-is. closed by a cap 17, which supports an insulator 18 for receiving a wire a. The insulator may be secured on a metallic pin 19, which has a driving fit in the sleeve 20 through which the pin extends to the under side of the cap 17, being riveted to the latter, or otherwise fixedly secured thereto. cap plate 17 extends at opposite sides beyond the pole and is held in place by brackets 21 that may be secured by rivets 22, or otherwise, the brackets having threaded pins 23 at their upper ends projecting beyond the pole and adapted to receive nuts 24. The cap plate is apertured as at 17 for the re- The ception of the bolts 23, so that when the nuts are screwed home the said cap'plate will be firmly seated on the pole and on the brackets 21.

An approved erossarm 25 is provided, of tubular form, preferably made from a section of pipe, and the ends are internally threaded to receive screw plugs 26. The interior of the cross arm is packed with sand 15, or asbestos, or it may have a filling of heavy oil, the screw plugs serving to propposition by set screws 31, or equivalent means.

A novel clamp is provided to secure the crossarm to the pole, and includes a base plate 32, between the back of which and the pole, a packing 33 is received, the central portion of the base plate having a concave recess conformed to the curvature of the pole. A shackle 35 embraces the pole and passes through the base plate 32 and through a face plate 34, the shackle receiving on its threaded ends nuts 36. The upper end of the base plate has a transverse concave seat 32, and the upper end 34* of the face plate 34 is curved, forming a mating concave transverse recess, in which recesses the tubular erossarm 25 is received.

At a proper height on the pole there is secured to the same a ring 37, by rivets 38,

or otherwise, and the ring is formed with vertically ap'ertured ears 39, for the connection of guy Wires (not shown)..

My improved pole, it will be seen, provides a durable article which may be constructed cheaply, and in which sound and vibrations are minimized. The character of the crossarm and its clamping means permit of readily securing the crossarm at any desired ipointnin the height of the pole, it being understood that several crossarms can be used on the same pole in practice. Also the means for securing the insulators provides for convenient adjustment and for positioning the insulators at desired points on the pole.

Having thus described my invention, I claim as-new. and desire to secure by Letters Patent:

In a metallic pole round in cross section,

a crossarm round in cross, section, and clamping means for said, arm comprising a baseypl'ateconcave atits back to approximately conform to the pole, a face plate, said base plate having a transverse concave recess, and the said face plate having its upper end curved presenting a concave. recessmating thal2,.v9f the base plate, and a shackle embracing the pole and extending through the base plate and face plate, the recesses in the said plates receiving the crossarm. vr,

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

AMOS H. MATTHEW.

Witnesses:

BLANCHE HOUTOHENS, F. Lao GRINsTEAD.

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