US1609818A

US1609818A - Pole-reenforcing sleeve

Info

Publication number: US1609818A
Application number: US622862A
Authority: US
Inventors: Heydon Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-03-05
Filing date: 1923-03-05
Publication date: 1926-12-07
Anticipated expiration: 1943-12-07

Description

E. HEYDON Dec. 7,1926. I

POLE HEENFORCING SLEEVE Filed March 5. 1923 mmv'rox. 427m f dm Patented Dec. 7, 1926.

UNITED STATES 1,609,818 PATENT OFFICE.

EDWARD I-IEYDON, F INDIANAPOLIS INDIANA; EMMA HEY DON, EXECUTBIX OF ED- WARD HEYDON, DECEASED, ASSIGNOR 'IO EMMA HEYDON, OF INDIANAPOLIS, IN-

DIANA.

POLE-REENFORCING SLEEVE.

Serial No. 622,862.

It is the object of my invention to provide any of the parts had rusted. Further, it has a pole-reenforcing sleeve which can be put on and taken off the pole wit-h relatively great ease, and without the difiiculty and a work involved with former pole-reenforcing sleeves, and which in addition is capable of use on portions of the pole where the diameter changes as well as on portions thereof where the diameter is uniform.

Both wooden poles and steel poles tend to become weak and to break at certain points. In the wooden pole, this is usually on the line just at or above the ground. In the steel pole, it is on the same line, just at or above the ground; and also at every joint in the pole or just above it, where the lower end of a smaller tubular pole section is inserted into the upper end of the neXt lower but slightly larger tubular pole section. To save poles which are weakened so that they are in danger of breaking, or which perhaps have already broken, pole sleeves have been used to surround the pole and project lengthwise on both sides of the weakened part or break. The most effective of these have been made in two parts, each of which extended halfway around the pole, the two longitudinal edges of each part being provided respectively with a radially outwardly projecting tongue and a radially inwardly opening groove; so that the two halves of the sleeve could be applied to the pole at longitudinally spaced points thereon, with the tongue and groove of one part in line with the groove and tongue respectively of the other part, and the two sleeve-halves then brought together by sliding one part relatively to the other to cause the tongues and grooves to interfit. To take such a sleeve off, if that is required for any reason, the operation is reversed.

This has formed a very effective polesleeve construction, and has saved many poles which would. otherwise have been total losses. However, it has involved-some clifficulties, because the two sleeve-halves had to be slid longitudinally with respect to each other for the full length of the sleeve, either to put the sleeve together or takeit apart. This lOIlg sliding movement was sometimes very difficult to obtain because of various obstructions which might be encountered in the construction of the sleeve itself or in the pole or its surroundings, especially when resulted in breaking of the sleeve-halves in the heavy pounding to which they were sometimes subjected in putting them together or taking them apart, when such a long relative movement was required. Moreover, such sleeves were of the same size at both ends, in order that the tongues and grooves would co-operate throughout the sleeve length, and so were not adapted for use at pole joints.

By my present invention, I make it possible to put the two sleeve-parts together and take them apart much more easily, and with a much shorter longitudinal movement between the sleeve-parts, and to apply the sleeve effectively to pole joints as well as elsewhere. t-inuous both the tongues and the groove-containing ribs with which the tongues co-oper ate, instead of making them continuous as heretofore, with gaps or spaces at one or more points in their length at least equal in span to the length of the parts of the cooperating ribs or tongues; so that in put ting the sleeve parts together it is necessary to displace them relatively to each other only by the half of the distance between centers of adjacent parts of a tongue, instead of by the whole length of the sleeve, and to move them relatively only by that distance in order to lock the two parts together or unlock them.

The accompanying drawing illustrates my invention: Fig. 1 is a vertical sectional view through a multi-section tubular steel pole equipped at various points with pole-reen forcing sleeves of my invention, the two lower sleeves being shown as filled with grout, while the uppermost sleeve is shown as snugly fitting the pole without grout; Fig. 2 is an enlarged perspective view of the lowermost sleeve shown in Fig. 1, with the two sleeve-parts interlocked; Fig.- 3 is a section on the lines 33 of Figs. 1 and 2, but before the grout has been put in place; Fig. 4 is an enlarged elevation of the uppermost sleeve of Fig. 1, with the two sleeve-parts" displaced sufficiently to unlock them; and Fig. 5 is a plan of the sleeve shown in Fig.

The pole shown is a multtsection steel pole, having a lower part 10 set in the ground 11 but projecting upward therefrom,

In doing this, I make nonconan intermediate part 12 the lower end of which projects some distance into the upper end of the section 10, and an upper section 13, the lower end of which projects into the upper end of the section 12. This pole has several well-defined points where it is most apt to corrode and become weakened by natural conditions, due to the retaining of moisture in contact with the metal. These are at the ground line 11 for the section 10, and at the upper ends of the sections and 12 for the sections 12 and 13 respectively. Therefore, it is at these points that the pole is most apt to need reenforcing sleeves, which may be put around the pole at these points, as indicated in Fig. 1.

The reen'forcing sleeve may fit the pole fairly snugly, with no material intervening space, as the uppermost sleeve 14 as shown in Fig. 1, or may be slightly spaced from the pole by internal lugs 15 on the sleeve, as is shown for the

intermediate andlower sleeves

16 and 17 in Fig. 1, in which latter cases the intervening space between the sleeve and the pole may be filled with grout 18. The lowermost sleeve 17 is of the same size at both top and bottom, because it is not intended to extend past a poleejoint; but the two sleeves 1 and 16 are of smaller diameter at. the top than at the bottom, becausejthey co-operate with the pole at joints, and at each joint. the pole is smaller above the joint than it is below the joint. This two-diameter feature is made possible by my invention. The one-diameter sleeve is shown in Figs. 2 and 3,. and. the two-diameter sleeve in Figs. 1 and 5; but either can be used, as conditions require. As so far described, except for the two-diameter feature, the structure is old, and my invention is applicable to any of the types of sleeves shown. whether one-diameter or two-diameter sleeves, and whether with or without the internal lugs 15.

Each

sleeve

14, 16, or 17 is made of a plurality'ofparts' 21 and 22. .Pre'lerably these parts are halves, so that two are used to form a complete sleeve, each part extending for 180 around the pole.circumference. Each sleeve-part at one longitudinal edge has a discontinuous tongue formed, by a plurality of spaced. tongue-sections 23, equally spaced apart. Preferably there is.a tongue-section at each end, so that there is one more tonguesection than spacer On the. other longitudinal edge, eachsleeve-part. has a plurality of spaced rib-sections 24, .which on their radially inner surfaces are provided with radial inwardly facing grooves 25 of the proper sizeand shape to fit the tongue-sections 23. The rib-sections correspond. in number to the tongue-sections, and are correspondingly spaced. Any. space betweenv adjacent tongue-sections.orrib-sections is preferably longer than a tongue-section or ribsection itself. This is the preferred arrangementybutin any case, the space between adjacent rib-sections is as-long as or slightly longer than a tongue-section, and vice versa. The tongue-sections in a sleeve-part are preferably all co-planar; so are the groovesections.

By this construction. it is possible'to assemble'the sleeve, whether on a pole or not, by displacing ,thetwo sleeve-parts longitudinally merely by the distance from the center of a space tothecenter otthe adjacent tonguesection or rib-section. in, other words, with the tongue-sections and rib-sections sii'nilarly spaced, and witha section 'ather than a space at each end; the longitudinal displacement betweenathe two sleeveparts necessary to assemble or disassemble the sleeve is the invert of twice the number of tongue sect-ions or rib-sections, minus.1 that is, if there are four tongue-sections; the necessarydisplacement is only one-seventl-i 0t thesleeve length. as shown in Fig. 4:, while it there are three tongue-sections. the necessary displacement is only one-fifth of the sleeve-length. as shown in Fig. 2. By malaing this displacement, the two sleeve-parts can beput together so that the tongue-sectionso't each sleeve-part are in alinement with the gr ooves. in. the rib-sections of the other sleeve-part, whereupon the two sleeveparts may be moved relatively longitudinal- 1y. to each other to lock. the two sleeve-parts together. This makes the longitudinal driving of a sleeve-part necessary to lock or unlock them onlv a fraction of what was forinerly required, so that the breakage is great? ly reduced,.and theliability of encountering obstructions in the movement is correspondingly reduced.

When the sleeve iszassembled over a joint, as are the sleeves 14: and 16' of Fig. 1, one sleeve-part is put on the pole atthev joint. and the other sleeve-part is put on at the necessary distance above the joint so that the rib-sections and tongue-sections, of it will interdigitate with those of the other: and then the higher sleeve-section is driven downward to lock the rib-sections and tongue-sections, andseat both sleevesparts-on the upper end of the adjacentlower pole-section." The change in diameters where there is a twodiameter-sleeve, as for a joint, is at a space between sections-of the tongue and ribs, asis indicated in Fig. 4. If; there is no joint where the sleeve is appliedthe location of the sleeve-parts may be somewhat more flexible, but in general-the same procedure isfollowed. When thetwosleeve-parts are locked together,.the grout.18,.if it is;used, maybe poured in place.

I claim. as my invention :7-

1. A pole-reenforcing sleeve. comprising a plurality of parts whichtogether form the complete sleeve,.one edge of each sleevepart having a series of spaced tongue-sections and the other a series of spaced groovesections so that the tongue-sections of one part may be received in the groove-sections of the other part to lock the parts of the sleeve together, the spaces between tonguesections being sufficiently long to receive the groove sections and those between groovesections being sufficiently long to receive the tongue-sections.

2. The combination set forth in claim 1, with the addition that the sleeve at its opposite ends is of different diameters and has an intermediate diameter-offsetting portion.

3. A pole-reenforcing sleeve, comprising a plurality of parts which together form a complete sleeve, said parts at their meeting longitudinal edges being provided with in terfitting locking members for locking the parts together, and the sleeve being of a different diameter at one end from what it is at the other.

4. A pole-reenforcing sleeve, comprising a plurality of parts which together form a complete sleeve, said parts at their meeting longitudinal edges being provided with intel-fitting locking members for locking the parts together, the interfitting locking parts at one set of meeting edges between sleeveparts being formed by a plurality of spaced tongue-sections on onesleeve-part and a plurality of spaced groove-sections on the other sleeve-part.

5. The combination set forth in claim 4, with the addition that the tongue-sections are all co-planar and the groove-sections are all co-planar, and the spaces between each set of sections are sufiiciently long to receive the sections of the other set.

6. The combination set forth in claim 4, with the addition that the two ends of the sleeve are of different diameters, and the sleeve has an intermediate diameter-offsetting portion joining the two portions of different diameters.

7. The combination set forth in claim at, with the addition that the tongue-sections are all co-planar and the groove-sections are all co-planar, the spaces between each set of sections are sufficiently long to receive the sections of the other set, the two ends of the sleeve are of different diameters, and the sleeve has an intermediate diameter-offsetting portion joining the two portions of different diameters.

8. A pole-reenforcing sleeve, comprising a plurality of parts which together form a complete sleeve, said parts at their meeting longitudinal edges being provided with interfitting locking members which are interengaged and disengaged by relative longitudinal movement between the sleeve-parts, and the sleeve being of a different diameter at one end from what it is at the other.

9. A pole-reenforcing sleeve, comprising a plurality of parts which together form a complete sleeve, said parts at their meeting longitudinal edges being provided with interfitting locking members which are interengaged and disengaged by relative longitudinal movement between the sleeve-parts of materially less than the length of the sleeve.

10. A pole-reenforcing sleeve, comprising a plurality of parts which together form a complete sleeve, said parts at their meeting longitudinal edges being provided with interfitting locking members which are interengaged and disengaged by relative longitudinal movement between the sleeve-parts of materially less than the length of the sleeve, and the sleeve being of a different diameter at one end from what it is at the other.

In witness whereof, I have hereunto set my hand at Indianapolis, Indiana, this 1st day of March, A. D.'one thousand nine hundred and twenty-three.

- EDIVARD HEYDON.