US1679747A - Reenforcement for poles - Google Patents

Description

Patented Aug. 7, 192 8.

UNITED sTATEs- GEORGE B. SPRING, OF NEWTON, MASSACH USETTS y BEENFORCEMENT Fon PoLEs.

i Applicationl fiied May 21,

Tliis inveiition relates to means for reenforcing` telephone poles, telegraph poles and other similar Vpoles and particularly toreenforciiig' nieans of that type comprising one or more vei'tical reenforciiig members wliicli are set int-othe earth alongside of the pole and are clamped thereto.

Reenforcing' devices of this nature are used for reen'forcing a wooden polewhich v has become weakened by decay. A wooden telephone oi' telegraph pole usuallyl shows weakness first at tlie surface of the earth, tlie pole becoming decayed at this point before there is any appreciable deterioration of the portion of the pole above the earth or the lower end wliich is completely einbedded in the earth.

In my application Serial No. 50,319. filed August 14, 1925 I have illiistrated and desci'ibed a reenforcement for poles wliich comprises two reen'forciiisir members set into the earth on opposite sides of the pole and clainping .devices for clamping the re'enforcing members to the pole, each clamping device including a perfora'ted plate 'and clamping dogs which are adjustably secured to the reenforcing members and are provided with inturned ends adapted to dog through the apei'tures iii the pole.

My present invention relates to a clampina` device of this general nature and lias for its object to provide an improvemeiit in such clamping device all as will be more fully hereinafter set foi'th.

In the drawings wherein I have illiistrated a selected einbodiment of my invention, Fig. 1 is a. view of a portion of a telephonepole I which is equipped with my impi'oved' reenforeinpr` means;

Fi'g'f2 is a section on the line 2-2, Fig. 1;

F 3 is an enlarged fragmentary sectional view to better show the construction of the clamping member; I

Fig. 4 is a section similar to F'ig. 2 illiistrating` a different embodiment of the invention;

Fig. 5 is a view showing theway in which the clampiiig rod is assembled with the perforated plate;

Fit; 6 is a view showingr the construction which is used for polessmaller than that shown in Fig'. 2. I

In the drawings 1 indicates a portion of a wooden pole such as is used for telephone,

telegraph and other transmission purposes,`

said pole being set in the earth 2. I

1926. Serial No. 110,661.

This pole is shown as weakened by decayl at the'siirface of the earth as indicated at 3, a condition which 'will be found in most wooden telephone poles after they have beenl in use a few years'v The pole is shown as being reenforced by a reenforcing member 4 which is set into the earth alongside of the pole and' which ovei'lies the pole for a dis- Vtance above the surface of the earth.l i The reenforcing'tmember may be of anyV suitable shape or Character; In Figs. 1 and 2 it is showii as in the form of an I-beam and .in Fig. 4 it is sliown asin the form ofcommercial channel iroii. The reenforcing member is clainped to the pole above thel earth by the novel elamping means 'which forms the subject matter of the present invention.

i The clamping means is of the type shown iii the above-mentioned application in that it includes two clamping irons or rods ad'- liiistably connected to the reenforcing member and an intermediate perforated plate to which the clamping iron-s are adjustably connected. In the device hereiii i'llusti'ateil the two clamping rods are indicated at 5 provided with a clampingniit 10. The end of the clamping rod which interlocks witli the perforated plate 6 is of special construction. t

The clamping rod is bent backwardly as shown at 11 to form a hook portion adaptedA to enter one of the apertures 7 and in order to provide a locked engagement between the claniping member and the perforated plate the inwardly bent end of the clamping rod is forined with the toe 'or lip 12 which over- ]ies and engages the inner face of the perforated plate. This forms a locked engagement between theclamping rod and the pei'- forated plate which prevents the separation of the parts when they are in iise.

In applying this reenforcement to poles thereenforcing member 4 is -first driven or set int-o the earth alongside of the pole, as shown in Fig. 1. The clamping members llO may then be applied and in so doing the two clamping rods 5 will be assembled with the perforated plate 6 in the manner shown in Fig. 5, each clampingj rod being placed in the full line position lfig. 5 relative to the claniping plate with the toe portion enteringl an aperture 7 and then being swung around into the dotted line position to connect the two parts. After the two clampinv rodsl have been thus assembled with the perforated plate the c-lamping` member is placed around the pole and the ends ot the clan'iping rods inserted through the apert-ures 8 and the clamping nuts 10 applied. By tightening up the clan'iping` nuts 10 the clamp will be drawn tightly around the pole and the reen'liorcing member will be firmly clamped thereto. By reason of this construction there is no possibility that the claznping rods 5l can become diseonnected l'rom the clamping plate G and`l` there'tore7 an effective clamping means is provided.

l/Vhere the reen'torcing member has a. channel iron construction, as shown at 13 in Fi 4,'1 propose to provide for connecting the clamping rods thereto by attaching a plate lll to the back of the channel iron member, the ends o'l the plate extending beyond the channel iron member and being' bent to form ears 15 to which the ends ot the elan'iping bolts may be secured.

The reason tor having'a plurality of apertures in the plate G is to make a standard size of elamping device applicable to poea of difierent sizes. If the pole is of smaller dimensions than are illustrated in Fig. 2 the clamping rods 5 will be connected to the periiorated plate (3 through the medium o' apertures` 7 which are a. less distance apart than the apertures which are used in Fig. 2, it being understood that the pertorated plate 6 will be bent to con'torm to the curvature of the pole. This construction is shown in Figi. G.

VVhile have illust-'ated herein a reen- 'orcing means con'iprising a single reen'forcing member 4: yet it will be understoo-d that the invention is equally applicable to'a construction embodying` a plurality of reentoreing members as shown in my co-pending application Serial No. 50,319.

I claim.

AA reentorcement tor poles comprisingya reenforcing` member adapted to be set into the earth alongside of th:) pole means tor clamping the reen'forcing member to the pole, said means con'iprisinp' a perforated plate adapted to reat aga t the pole` a clamping rod adj'ustably seeured at one end to the reen'foreing` member and having a hook portion at the other end to enter an aperture ot the plate from the outer tace, the terminal of the hook portion being provided with a lip to underlie the plate said .lip being situated between the plate and the pole and Eerving` to lock the elamping member to the plate.

In testimony whereot, I have signed my name to this specification.

GEORGE B. SPRING.v

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