US1489322A - Pole protector - Google Patents

Description

Patented Apr. d, lQZd.

rnrtrr noemt, orV sr. Louis, iurssounr.

l POLE PROTECTR.

Application ledApril 28, 1922.

To aZZ whom t may concern:

Be it known that l, Partir HOGAN, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful improvement in Pole Protectors, of which the fols lowing is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use Ythe same, reference being had to the accompanying drawings, forming part of this applica-4 tion.

This invention relates to a new and useful improvement in pole protectors, the object being to provide a sectional splice, the sections of which are separable so that they may be employed in connection with poles of dilferent diameters.

lt is well known that wooden telegraph and telephone poles decay and become weak at a point coinciding with the surface of the ground or earth in which they are embedded. This weakness may be occasioned by boring insects or rotting of the wood, with the result that while the butt and top of the pole after a few years usage may possess a large percentage of their original strength, the weakness from the above mentioned causes will commence to develop and continue to develop as the age of the pole increases, at a point where the pole should be comparatively strong. Hence, strains occasioned byy wind, snow, ice, etc., can not be successfully resisted, and the poles will break.

My improved sectional splice is preferably made of separable pieces, each having a concave inner face adapted to receive poles of di'erent diameters, each section accommd dating itself to the taper, if any, of the pole upon which it is used. These sections are reinforced by outwardly extending radially disposed ribs or reinforcing projections deepest at approximately their middle portions and tapering thence towards the top and bottom edges ofthe sections. yThe sections are preferably made of cast metal such as steel or iron, the latter being malleable ized and galvanized, if desired, to prevent corrosion. rlhese reinforcing ribs are provided with means for receiving and co-operating with band rods by which the sections are secured in position on the pole to be spliced and strengthened. rlhese band rods or irons when tightened, tend to Hex the scctions so as to cause them to closely fit the pole, thus adapting said sections to poles of Serial No. 557,086.

different diameters or tapers, and such other irregularities, such as knots or protuberances which may be encountered.

Figure l is a sectional view of my pole protector as applied in position on a Wooden telegraph or telephone pole.

Figure 2 is a top plan View of the same.

Figure 3 is a detail view of one of the reinforced splices.

Figure 4 is a sectional View throughy Va modilied form. y

Figure 5 is a side elevational view of the form shown in Figure 4.

ln the drawings, 1 indicates the lower end of a telegraph or telephone pole, which is shown as being deteriorated by boring insects or rot, producing a reduced and weakened portion 2 approximately in the plane of the ground line.

3 indicates a section of my improved splice, preferably concavo-convex, from the outer face of which extend vertically disposed reinforcing ribs 4. These ribs are radially disposed with respect to the curvature of the splice sections and are deepest at their middle portions, tapering towards the top and bottom edges of the section.

5 are notches in the outer edges of these reinforcing ribs near their upper and lower extremities, which notches are adapted to receive hand irons or rods 6 which are designed to encircle the pole and by means of nuts 7 force the splice sections to flex and hug the pole above and below its weakened portion. ln practice, it may be found unnecessary to use the band rods at the bottom of the splice sections, as these are buried in the ground and need not be tightly clamped around the buried portion ofthe pole. Each splice section is preferably less than a half circle so that the side edges are more or less separated when the sections are applied in position on a pole.

ln Figures l and 5, l have shown a modi iication in which one of the webs is provided with an enlarged portion 8 formed with openings for receiving the ends of the band rod 6, the nut 7 of the band rod being applied on the ends thereof and on opposite sides of the lug 8, whereby when said nuts are tightened, the band rod will clamp the f sections tightly in position on the pole.

What l claim is:

l. ln a pole protector, a pair of semi-cylin drical plates, integral ,exterior longitudinal ribs on each of said plates,fsaid ribs being icasY stiening the sheets longitudinally,

of greatest depth intermediate the ends of the plates and tapering toward the ends thereof, a tie rod extending over said ribs for clamping said plates toward each other on a pole, and means for preventing said regis from slipping toward the ends of said r1 s.

2. A pole protector comprising two semicylindrical sheets which may be placed about a pole and are provided with integral outwardly extending longitudinal ribs tor said ribs tapering toward the ends ot the sheets and being notched, and a rod passing around the sections over all of said ribs but one and seated in the rib notches and having its ends threaded, projecting through said one rib and secured on opposite sides thereof by nuts.

3. In a pole protector, a pair oit concavoconvex plates each having longitudinal reinforcing ribs on its convex face, one of said ribs being apertured and extending outwardly beyond the edges of the other ribs, and a rod for clamping said plates to a post having ends which extend through said apertures in opposite directions and are held against retraction through the apertures.

et. ln a pole protector, a pair or concaveconvex plates each having longitudinal reinforcing ribs on `its convex tace presenting inclined edges, said ribs being provided with a series or notches arranged in a helix about the two plates, and a clamping rod seated in vsaid notches to prevent its sliding along the inclined edges of the ribs, the ends of said rod overlapping and each terminating ad-A jacent to one of said ribs and secured against movement transversely of the latter. In testimony whereof I hereunto afix my signature this 19th day of April, 1922.

PHILIP HOGAN.

Images