US1218813A - Sectional post. - Google Patents

Description

S. M. SPENCER.

SECTIONAL POST.

APPLICATION men NOV. 21. 1915.

1,218,813. Patented Mar. 13, 1917'.

m: "cums Psrlks ca. Pnamumn. vusumc mu. 0. c.

sAMUnL M. srnnonn, or EUTAW, ALABAMA.

SECTIONAL POST.

Specification of Letters Patent. Patented lvIgug 13, 191% Application filed November 27, 1915. Serial No. 63,888.

To all whom it may concern:

Be it known that I, SAMUEL M. SPENCER, a citizen of the United States ofAmerica, residing at Eutaw, in the county of Greene and State of Alabama, have invented certain new and useful Improvements in Sectional Posts, of which the following is a specification.

My invention relates to sectional poles for telegraph and telephone wires and has for its object to provide a detachable top member carrying the cross arms and having a socket member adapted to be mounted on the present type of wooden post in general use.

One object of my invention is to enable the wooden posts new in use, when their'base portions have rotted away, to be cut off and lowered in the ground and still made available for use by the provision of my extension top member.

An extension member may be interposed between the top carrying the cross arms and the socket member connected to the wooden post, thus permitting the wooden posts to be cut down and reutilized a number of times.

Inasmuch as I intend that the top member shall remain permanently connected to the wires, it is preferably made of galvanized or non-rusting metal piping and adapted to carry a varying number-of cross arms and to this end I have devised a novel type of bracket member for affording a very firm and substantial support for the cross arms on such a metal post. Also, in order to provide for climbing the intermediate extension member to reach the cross arms, such member is provided with holes therethrough at intervals so that removable pins can be inserted through the holes to form a temporary ladder upon which the operator may climb to the cross arms and as he descends these can be removed, thus eliminating the necessity of providing each of the extensions with foot rests or steps.

As illustrative of what I regard the preferred embodiment of my invention, reference is made to the accompanying drawings which form a part of this specification, and in which I Figure 1 illustrates in elevation a sectional post built up with my extension post members.

Fig. 2 is a perspective view f the top member of the post with its brackets for supporting the cross arms.

Fig. 3 shows a modification of my invention with the intermediate extension member removed.

Similar reference numerals refer to similar parts throughout the drawings.

, I have shown my invention in connection with a wooden post 1 of any suitable shape or construction such as is customarily used for telegraph, telephone or trolley wire poles. At the top of this post is provided a tapered portion adapted to receive a taper socket 2 which may be split and drawn tightly about the post by the action of the clamp screws 3 working through flanges 4 along the split portion of the socket. The socket is further made fast to the post by means of lag screws 5 or other suitable means whichwill firmly and rigidly mount it at the top of the post. The top of the socket member is formed of considerable strength and provided with a vertically disposed threaded pin 6 upon which is screwed a sleeve coupling 7 adapted to receive either the threaded bottom end of the intermediate extension member 8 or the similarly threaded bottom end of the top member 9 of the post. As illustrated in Fig. 1, the extension member 8 is shown screwed in the coupling 7, the member 8 being formed preferably of heavy galvanized piping which can be cut to the desiredlength so as to support the top member 9 at the required height. The members 8 and 9 are connected by means of a coupling sleeve 10 into which both are screwed. The top 9 is also preferably formed of galvanized piping or metal which will not rust and which will be provided at suitable intervals with holes drilled therethrough to receive the bolts 11 by means of which the brackets that support the cross arms 12 are attached to this top member. A cap 13 is screwed over the top end of the member 9 and is provided with a flaring base flange 14.

The brackets for supporting the cross arms are provided with side arms or wings 15 connected to a heavy wedge shaped body member 16 which tapers downwardly to a sharp point 17 disposed substantially below the base of the wings 15 and adapted to bear a ainst the member 9. Each of the wings is provided with a bolt hole 18 for the reception of the bolts 11 which pass diametrically through the member 9 and securely tie the bracket wings to the post. The top of the wedge portion 16 forms a horizontal ledge upon which the cross arm 12 rests, the ledge having substantially the width of the cross arm and having at each end laterally extending horizontal flanges 19 which are perforated to receive bolts 20 by means of which the cross arm is bolted down on the supporting bracket.

As illustrated in Fig. 1 the top member may have the brackets disposed to support the cross arms in positions at right angles to each other, but it is my purpose and intention to support all of the cross arms upon the top member 9 of the post. The intermediate member 8 provided with diametrically opposite holes drilled therethrough at intervals of about two or three feet apart and these holes are adapted to receive detachable rods or pipes 21 which form both the foot steps and the hand grips by means of which the operator can climb readily to the top of the post. The cross arms are provided with any suitable type of insulators 22.

In operation, having mounted my detachable top member 9 either on the post 1 or on the intermediate extension member 8 and connecting the several line wires to the insulators on the cross arms 12, it will be obvious that i case the post 1 becomes damaged or rotted and requires to be taken down, this can be done without disturbing the connections of the wires to the cross arms by unscre 'ing the coupling sleeve 10 or 7, as the case may be, which connects the top to the post member next below it, whereupon the top is left suspended from the wires and the post can be taken down. here the bottom portion has rotted and it is desirable to re utilize the upper portion of the post, the rotted portion is cut away and the post reset in the ground and an extension member 8 of sufficient length mounted thereon to replace the cut away portion of the post 1. The top is then connected by the coupling sleeve 10 to the extension member 8 and the post is ready for service. The brackets being made fast at their sides and having a long bearing en gagement vertically of the post, will form a very strong and firm support for the cross arms and where necessary these brackets can be also attached to the extension member, thus afi'ording an increased carrying capacity for the post without requiring any spe cial work to make provision for it.

In Fig. 3 1 illustrate a modification of my invention wherein the wedge shaped body member 16 is connected to a ring 52?; adapted to slide over the top of the section -9 when the cap 13 is removed and having bolt holes to receive the retaining bolts 11. In this construction I show the socket 2 as formed solid instead of as a clamp socket.

Having thus described what I consider the preferred embodiment of my invention, What I claim as new and desire to secure by Letters Patent, is I In a combination wooden and metal post for Wires, in combination, a wooden base, a metallic socket member rigidly attached to the top of the wooden base, a tubular metallic pipe forming the to of the post, a plurality of bracket supports for cross arms attached to said top, and interchangeable means to detachably connect said top to the socket member to vary the spacing between the top and the Wooden base, substantially as described.

In testimony whereof I afiiX my signature.

SAMUEL M. SPENCER. Witness:

WM. HAWKINS.

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

Images