US488830A - Telegraph-pole - Google Patents

Description

(No Model) H. PRATT. TELEGRAPH POLE.

No. 488,830 Patented 1m. '21-, 1892.

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WILLIAM H. PRATT, OF MOUNT VERNON, OHIO.

TELEGRAPH-POLE.

SPECIFICATION forming part of Letters Patent No. 488,830, dated December 27, 1892.

Application filed March 2 5, 1892. Serial No. 426,456. (No model.)

. To all whom/it may concern.-

Be it known that 1, WILLIAM H. PRATT, a citizen of the United States, residing at Mount Vernon, in the county of Knox,State of Ohio, have invented certain new and useful Improvements in Telegraph-Poles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in supports or poles for telegraph, electric light and other wires, or other purposes for which such structures may be employed.

It has for its objects among others to provide a cheap and simple light yet strong pole with anchorages which are adapted for all the conditions under which it may be found desirable to secure the pole. I provide an anchorage templet which serves to hold the anchor rods in proper position and to bind the upper ends thereof together in fixed relation; this templet is provided with pivoted clips to further hold the parts firmly together. The rods of the pole are suitably braced and are held at the proper distance apart at suitable intervals by bands. By my construction the pole can be easily and quickly erected, and the same may be adjusted and plumbed by means of nuts on the lower ends of the polerods which are independently adjustable.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be specifically defined by the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which Figure 1 is a side elevation of my improved pole and anchorage, broken away. Fig. 2 is a detail in side elevation showing a slightly modified form of pole. Fig. 3 is a plan View of the top plate. Fig. 4 is a like view of the anchorage-templet. Fig. 5 shows in side elevation and plan respectively the wall anchor. Fig. 6 shows in side elevation a rock anchor.

Like letters of reference indicate like parts throughout the several views in which they appear.

Referring now to the details of the drawings by letter, A designates twisted bars having preferably pointed ends as seen in Fig. 1

v and their upper ends bent at right angles to the length of the bars to form the horizontal flanges a which are each perforated for the reception of the lower ends of the pole-rods. These bars are to be driven into the ground and may be of any desired length, depending somewhat upon the height and weight of the pole which they are to hold. While I have chosen to show my anchorage bars and the pole itself intriangular form it will of course be understood that this invention is not restricted to such form although it is the preferable one; other forms may be employed without departing from the essence of the invention. When this triangular design is employed Iemploy an auchorage-templetB which has at each of its inner angles a rectangular recess 1) for the anchor bars and across each angle there is arranged a clip or short arm B which is pivotally held to the templet at one end as seen at b and its other end designed to be held by any suitable removable means as for instance a bolt and nut. The anchor bars A are driven through this templet the bars fitting in the recess at the angles and when the anchorage is in place the clip is swung back to allow the teinplet to be drawn upward over the top of the anchorage; the clips are fastened beneath the flanges a of the anchor bars as will be readily understood.

When a guy anchor is necessary or desirable I may employ a guy anchor similar to one of the anchor bars which is driven into the ground at any convenient point and to this may be secured the guy from the top of the pole.

It is sometimes desirable to erect a pole on ground Where it is impossible to drive anchor bars, say upon a rock and for such occasions I provide rock anchors, one of which is seen in Fig. 6, and consists of a rod or bar 0 designed to be cemented or otherwise held in holes drilled in solid rock and at the upper end provided with a horizontal flange e perforated for the reception of the lower end of a pole-rod the same as the form seen in Fig. 1. Of course as many of these rock anchors will be used as there are rods in the pole.

In Fig. 5 I have shown a wall anchor to be secured to faces of masonry or other vertical faces; it consists of a right-angled plate D having upon its horizontal portion holes cl for the reception of the lower ends of the polerods and braced by a suitable inclined brace arm D. The vertical portion of this plate is provided with suitable holes (1 for the reception of the means which hold it to the wall.

The pole consists of a plurality of vertical rods of any desired size and length, shown in triangular form as that is the form preferred, and the lower ends are screw threaded and passed through the holes in the flanges of the anchors, no matter which form of anchor is employed, and are provided with adjusting nuts 6 on the ends of the said rods E and jam nuts con the said rods above the said flanges as seen in Figs. 1 and 2. The upper ends of the rods are also screw threaded as seen in Fig. 1 and F is atop plate provided with holes f through which the upper ends of the rods pass and above this plate are the nuts F on the ends'of the rods. The top plate is further provided with acentral opening f for the reception of the shank of an insulatorG as seen in Fig. 1.

II is a metallic angle cross arm secured to the pole in anysuitable manner and the horizontal portion thereof is provided with vertical openings for the reception of the shanks of the insulators G.

The pole is braced interiorly by the inclined and crossed bars I which, as shown in Fig. 2, are continuous from the top to the bottom of the pole, and are held at their bends by metallic bands or rings 1 shrunk or welded on in any suitable manner.

In the form shown in Fig. l the lacing or brace bars I are in sections with their ends upset and formed with openings for the passage of the polerods, and J are horizontal tie bands which also have apertured portions through which the pole-rods pass. The apertured portions of the bandsJare held between the apertured ends of the bars I as seen in Fig. 1, and by tightening the nuts at the uprods, of an anchor having horizontal flanges for the passage of the rods, and an anchortemplet, having movable retaining devices as set forth.

2. The combination with a pole, of an anchor adapted to support the pole, and an anchortemplet provided with pivoted clips, as set forth.

3. The combination with a pole, of an a11- chor formed of bars with horizontal flanges, an d an anchor-templet provided with recesses at its inner angles, and pivoted clips, substantially as specified.

4. lhe combination with an anchor having horizontal flanges with apertures, of a pole formed of rods havingtheir lowerends passed through said apertures, and nuts upon the said rods above and below the flanges, substantially as specified.

5. A pole formed of rods, sectional inclined brace bars with their ends sleeved on the rods, and tie bands arranged at substantially right angles to the rods and having their outer portions sleeved on the rods between the ends of the brace bars, substantially as shown and described.

In testimony whereof I affiX my signature in presence of two witnesses.

WILLIAM H. PRATT. Witnesses:

II. D. CRITGHFIELD, CLIFTON A. MITCHELL.

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