US909569A - Trolley-wire support or hanger. - Google Patents

Description

0. G. ETTE. TROLLEY WIRE SUPPORT 0R HANGER.

APPLICATION FILED MAY4, 1908.

Patentd Jan. 12, 1909,

UNITED STATES PAT rater...

CHARLES G. ETT E, OF ST. LOUIS, MISSOURI, ASSIGNOR TO ETTE INVESTMENT COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

TBOLLEY-WIRE SUPPORT OR HANG-ER.

No. ceases.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed May 4, 1908. Serial No. 430,768.

To all wlwnt it may concern:

Be it known that I, CHARLES G. ETTE, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Trolley-W ire Supports or Hangers, of which the following is a full, clear, and exact description, such as will enable others skilletl in the art to which itappertains to make and use the same, reference being had'to the accompanying drawings, forming part of this specification, in which Figure l is a side elevation of a trolley v wire support constructed in accordance with my invention; Fig. 2 is a vertical sectional View taken on approximately the line 22 of Fig. 1; Fig. 3 is a detail perspective view of the insulating member and a portion of the shank that carries the clamping jaws; and.

Fig; dis a horizontal sectional View taken through the shanks of the clamping jaws.

This invention relates to supports orhangers for trolley Wires, and particularly to the trolley supports used in systems in which the trolley Wire is sustained in operative position by means of guide wires that extend transversely of a street and are connected to poles located at opposite sides of the street.

The main object of myinvention is to provide a trolley wire support comprising few parts and which can be manufactured at a low cost.

Another object of my invention is to provide a trolley wire support in which the jaws that clamp the trolley wire are perfectly insulated from that portion of the support which is connected to the guide wire that sustains the support. And still another ob ject of my invention is to provide a trolley I i l the preferred form of my invention, 1 desi l rib 13 that fits in a recess in the shank of nates an inverted cup-shaped member, the top of which is provided with a dome or crown 2 having integral lugs or hooks 3 which are adapted to engage a guide Wire A that extends transversely of a street or road. The clamping members which engage the trolley wire B consist of two jaws 4: and 5 that are carried by a shank 6 which projects into the cup-shaped member 1, said shank being provided with a head that consists of two laterally projecting ring-shaped flanges 7.

An insulating member, which preferably consists of two or more blocks 8 of some suitable insulating material, is interposed between the flanges 7 on the shank 6, and said insulating blocks conform to the interior of the cup-shaped member 1 so thatthey will fit snugly inside of same, as shown in Fig. 2. The insulating, member thus forms the supporting means for the shank 6 which carries the clamping jaws, and said insulating member is sustained and locked in operative position by means of a movable ring-shaped member ,9 provided with external screw-threads that interlock with the screw-threads 10 on the interior of the inverted cup-shaped member 1. The ringshaped locking member 9 is preferably provided at its upper edge with a flange 11 that provides an extended supporting surface for the insulating member and clamps said insulating member against the inside face of the top of the inverted cup-shaped memher 1, as shown in Fig. 2, Said locking member 9 is also preferably provided at its lower end with a flared skirt 9 which tends to shed water from the clamping jaws 4 and 5. 4

In the construction herein shown the shank (3 is provided with a half-round screwthreaded portion 4 and an integral clamp jaw 4 and the cooperating movable clamping jaw 5 consists of a separate part that is provided with a half-round shank 5 -having external screw-threads. surrounds the screw-threaded shanks of said i jaws for forcing said jaws together so that they will firmly clamp the trolley wire B 5 interposed betweenthem, and the shank 6 is provided with a longitudinally extending A clamping nut 12 the movable jaw and a laterally projecting lug 13* that extends through a slot insaid jaw so as to prevent the movable jaw from moving laterally or vertically relatively to the integral jaw 4 on the shank.

The clamping jaws may be of any preferred construction and can be designed to cooperate with either a round trolley wire or a grooved trolley wire. All of the parts 01' my improved trolley wire support are formed of cast metal, preferably malleable iron, and the only machine-work that is required in the manufacture of the. device is cutting the threads 10 on the interior of the inverted cup-shaped member 1 and on the exterior of the ring-shaped loclringinemher 9. The dome 2 in the top'of the memher 1 prevents the upper end of the shank 6 from contacting with the top of said member, and the blocks 8 of insulating material hold said shank 6 spaced away from the 'sidesot said member so that the clamping jaws which en age the trolley wire are perfectly insulated from that portion of the support which is connected to the guide wireA,

. thereby preventing the current in the trolley wire from passing into the guide wireand thence into thepoles to which said guide wire is connected.

The parts which form my improved trolley wire support can be assembled quickly, for a single member; namely, the locking ring 9, operates to clamp the insulating member in position and also sustain'the jaws which clamp the trolley wire. v i

The flanges Ton the shank 6 between which the insulating member is interposed prevent the clamping jaws from-moving upof screw-threaded parts that would rattle and work loose after the device had been in use for a short period. My improved device overcomes this objectionable feature as it comprises very few parts. The split insulating member which is arranged between the flanges 7 on the shank 6 can be inserted easily and said shank and insulating member are so formed that the shank 6 can swivel in said insulating member and thus permit the trolley .wire to assume any angle relatively to the support.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

hit device for the purpose Qimii'ibGd, comprising an inverted cup-shaped member, a removable device arranged inside of said member and detachably connected thereto, an insulating member mounted inside of said cup-shaped member and resting upon said removable device, and a line-holding device comprising a shank passing through said insulating memberand provided with a head that rests upon the uppersurface of said insulating member; substantially as described. i

2. A device for the urpose described, comprising'an inverted cup-shaped member provided withadome-shaped'top', a shank -projecting into said member and provided with laterally projecting flanges and means for holding a Wire, an insulating member arranged inside of said cup-shaped member and interposed between the flangeson the shank'for'holding said shank out of engagement with the, cup-shaped member, and means for clamping said insulating memberin position;substantially as described.

3. A device for the purpose described,

, comprising a. one-piece inverted cup-shaped member, a shank projecting into said member andjprovidedwith clamping j aws,'flanges on said shanlnan insulating member arranged inside of .saidinverted cup-shaped member.- and interposed between said flanges, and a removable device screwed into the lower end of said inverted cup-shaped member-for retaining said insulating member in position; substantially as described.

4. A device for the purpose described, comprising an inverted cup-shaped member provided with lugs which are adapted to engage a guide wir.e,- an insulating member arranged inside of said cup-shaped member,

a clamping ring screwed into said cup-" shaped member. for holding said insulating member in position, a shank passing through said insulating flange or member and provided at its upper end with a head that rests on said insulating member, and means carried by said shank for holding a trolley wire; substantially as described.

5. A device for the purpose described, comprising an inverted cup-shaped member formed'of malleable iron and havinga domeshaped top Which is provided with integral lugs for engaging a guide wire, a sectional insulating member arranged inside of said cup-shaped member, a shank passing through said-insulating member and provided with. a head which rests upon the upper side of said insulating member in the hollow spitq of "said dome-shaped top, clamping jaws'can ried by said shank, a ring screwed into said 'cup-shap ed"m1 nber and p'rbvided with. a Inte'stim 0 ny whr eof I hereunto aflik my flared skirt. which sheds Water from said slgnature'in the presence of two witnesses, clamping. jaws, and. a flange on theppper -thls twenty-ninth day of April19081 edge ofsaid rin' which clamps the insu1at- G ETTE.

ing membera' a nst the outer edge portiqn Witnesses:

' of the' top wa 1 of the cup-shaped member WALTER CLARENCE RAITH'EL substantially as described. EDWARD Scnwmnp.

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