US1214099A - Trolley-ear. - Google Patents

Description

E. WALDRON.

TROLLEY EAR. APPLICATION mm Nov. 6, 1915.

Patented J an. 30, 1917.

2 SHEETS-$HEET 1.

E. WALDRON.

TROLLEY EAR.

m MM f m w m mm &% g a n EDWIN WALDRON, OF SCHENECTADY, NEW YORK.

TROLLEY-EAR.

To all whom it may concern:

Be it known that I, EDWIN WALoRoN, a citizen of the United States, residing at Schenectady, county of Schenectady and State of New York, have invented certain new and useful Improvements in Trolley- Ears, of which the following is a specification.

The invention relates to such improve ments and consists in the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

The principal object of the invention is to provide simple and efficient means for suspending a wire from another wire or cable.

Other objects will appear in connection with the following description.

The invention relates more particularly to devices, sometimes called trolley-ears, whereby a trolley-wire is suspended from a messenger-wire or cable in an electric railway system.

Figure 1 of the drawings is a view in perspective of one form of such device, embodying my invention. Fig. 2 is a view in perspective of one of the clamp-plates detached. Fig. 3 is a view in perspective of the clampsuspending loop detached. Fig. 41 is a View in perspective of a modification of the construction shown in Fig. 1, having clampplates secured together by a single screw bolt, and the clamp connected with one branch only of the clamp-suspending loop. Fig. 5 is a view similar to Fig. 1, showing another modification of my invention. Fig. 6 is a vertical cross-section of the same taken in the plane of one of the terminals of the clamp-suspending loop. Fig. 7 is a view in perspective of one of the clamp-plates shown in Figs. 5 and 6. Fig. 8 is a view similar to Figs. 1 and 5, showing another modification of my invention. Fig. 9 is a Vertical cross-section of the same taken in the plane of one of the terminals of the clamp-suspending loop. Fig. 10 is a view in perspective of one of the clamp-plates, shown in Fig. 9. v

Referring to the construction shown in Figs. 1 to 3 inclusive, 11 are a pair of clamp-plates preferably formed of heavy sheet-metal and having complementary Specification of Letters Patent.

Patented Jan. 30, 1917.

Application filed November 6, 1915. Serial No. 60,115.

jaws, 2-2, adapted to clamp between them a trolley-wire, 3, formed with longitudinal grooves, 4-4. on its opposite sides adapted to receive said jaws. The two clamp-plates are preferably alike, and interchangeable with one another. Each plate is provided with two bolt-holes, 5-5, and with two hook-holes, 66, above the respective boltholes; and is also provided on its inner side with grooves, 7-7, leading from the upper edge of the plate to the respective hookholes, 66. The two complementary plates, 11, are clamped together by screw-bolts, 88, passing through the alined bolt-holes in the two clamp-plates, and nuts, 9-9, on the projecting ends of the respective screwbolts, to tightly embrace the wire, 3, between the jaws, 4-4. A clamp-suspending loop, 10, whereby the clamp is suspended from a messenger-wire or cable, not shown, is preferably formed of wire bent to substantially U-form with its upper looped end in a plane at right angles to the plane of the clamp-plate, the branches, 11-11, of the loop being bent out of line with one another and inwardly offset at, 1:2, to bring them in line with the respective openings between the plates formed by the grooves, 7 7, the grooves in one plate being complementary to the grooves in the other to form such openings. The branches, 11, of "the wireloop are bent at right angles in opposite directions to form hooks, 13-13, adapted, when said members are inserted within the groove-formed openings, 77, to project in.

opposite directions, one through a hookhole, 6, in one of said clamp-plates near one end thereof, and the other through a hookhole, 6, in the other clamp-plate near the opposite end thereof. The bolts, 88, are preferably inserted through the clampplates in opposite directions with the heads of the bolts beneath, and in close proximity to, the projecting'ends of the respective hooks, 13, whereby said hooks prevent the bolts from turning, as the nuts, 9, are set up. The clamp-plates, 11, being alike and interchangeable, only one set of dies is required for their manufacture, and it is practically impossible for the device to be assembled in any but its proper form.

Referring to the construction shown in Fig. 4c, the clamp-plates, 1414:, are alike and interchangeable, each being substantially like one-half of the clamp-plate shown in Fig. 2, with a. single bolt-hole in each,

I can" of this patent may be obtained for and a single hook-hole above said bolt-hole, and with a single opening formed by complementary grooves, 77, in the inner sides of the respective plates. A single screwbolt, 15, serves to clamp the two plates, 1114, together withtheir jaws, 2-2, embracing the trolley-wire, 3. In this form of device, I employ a wire-loop, 16, one branch, 17 of which is extended down through the opening formed by the complementary grooves, 7-7, and is bent or oifset to form a hook, 18, projecting through the hookhole in one of the clamp-plates adjacent to the head of the bolt, 15. The other branch of the wire-loop is bent to form an openhook, 19, adapted to embrace the branch, 17. The hook, 19, can be drawn away from the branch, 17, to permit the loop to be passed over the messenger-wire or cable, after which the hook is sprung back into position to embrace the branch, 17, as shown.

Referring to the construction shown in Figs. 5, 6 and 7, two clamp-plates, 2020, are employed which are alike and interchangeable, each being provided with two apertures, 24, adapted to aline with similar apertures in the complementary plate. The branches, 2121, of the wire-loop extend down along the outside of the respective clamp-plates and their ends, 22, are inwardly offset and enlarged in diameter extending through the alined holes in the clamp-plates, their projecting ends being screw-threaded to severally receive a clamp nut, 23, said clamp-nut, when set up, serving to tightly secure the clamp-plates together with their jaws embracing the trolley-wire, and also serving to securely connect the clamp-suspending loop with the clamp.

Referring to the construction'shown in Figs. 8, 9 and 10, two clamp-plates, 2525, are employed which are alike and interchangeable, each being provided with two bolt-holes, 26-26, and with a' hook-hole, 27, above each bolt-hole. The branches, 2727, of the wire clamp-suspending loop pass down along the outside of the respective clamp-plates, terminating in hooks, 28, which project through alined hook-holes, 2727, in the respective plates. Bolts, 29-29, are'inserted through the alined boltholes in the respective clamp-plates which are securely clamped together by the nuts, 30, on the respective screw-bolts. The hookholes, 2 7, are in close proximity to the respective bolt-holes, 26, permitting the heads of the respective screw-bolts to be grooved at, 31, to receive the bent portions of the branches of the wire-loop, by which the hooks, 28, are formed, whereby the hooks are securely held in the hook-holes when the nuts, 30, are set up.

The hook-connection, 19, shown in Fig. 1, may be incorporated in the loops shown in any of the other figures, in which case a single branch of the loop would be connected with the clamp in the manner described with respect to such other figure.

What I claim as new and desire to secure by Letters Patent is:

1. A wire hanger having a wire-clamp provided with a pair of transverse openings, and'a clamp;suspending loop with oppositely oii'set ends extending in opposite directions through the respective transverse openings in the clamp.

2. A wire-hanger comprising a pair of like interchangeable clamp-plates detachably secured together, having wire-engaging jaws and provided with transverse openings, and a clamp-suspending loop having offset ends extending in opposite directions, each through one of said transverse openings.

3. A wire-hanger comprisinga pair of like interchangeable clamp-plates provided with bolt-holes, and with hook-holes each located above a bolt-hole, and with complementary grooves in their inner sides forming openings between the plates leading from their upper edge to the respective hook-holes; bolt-connections between said clamp-plates extending through the respective bolt-holes; and a clamp-suspending 'loop having its branches extending down through the respective groove-formed openings between the plates and its ends ofl'set to form hooks, each engaging one of said hookholes. 7 V v In testimony whereof I have hereunto set my hand this 5th day of November, 1915.

EDWIN WALDRON.

five cents each, by addressing the "Commissioner of Patentl,

Washington, D. 0.

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