US491208A

US491208A - William h

Info

Publication number: US491208A
Authority: US
Publication date: 1893-02-07
Anticipated expiration: 1910-02-07

Description

(No Model.)

W. EDMUNDS. INSULATOR CLIP.

No. 491,208. Patented Feb. 7, 1893.

UNITED STATES PATENT OFFICE.

\VILLIAM II. EDMUNDS, OF NEl V YORK, N. Y.

INSULATOR-CLIP.

SPECIFICATION forming part of Letters Patent No. 491,208, dated February '7, 1893.

Application filed August 9, 1892. Serial No. 442,588. (No model.)

.To all whom it may concern:

Be it known that 1, WILLIAM H. EDMUNDs, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Attachments for Securing Electrical Oonducting-VVires to Insulators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention has reference to improvements in attachments for securing electrical conducting wires to insulators, and has for its object to provide an attachment which shall be inexpensive in its manufacture, easy to apply, and efficient in operation,and which will overcome the difficulties attending the use of such devices heretofore employed.

The invention consists in an attachment constructed of malleable cast iron or other material, having a loop which partially embraces the insulator, and which terminates in two wedge'shaped slots for receiving the wire, and in short projections or teats which are adapted to be bent over to close the slot after 7 the wire is inserted.

The construction and operation of my improved attachment Will more fully appear from the following description taken in connection with the accompanying drawings which form a part of this specification, and in which Figure 1 illustrates in perspective view my improved attachment; Fig. 2, a central section of the same 5 Fig. 3, asection through an insulator showing the at-tachmentin position, and Fig. 4, is a view in elevation showing the wire inserted, and the teats bent downward to close the slot.

Like letters of reference denote like parts in the several figures of the drawings.

The reference letter A denotes the attach meut.

B is the insulator, and O the conducting wire.

The attachment A which is preferably made from malleable cast iron, is formed with the loop d which is convex on its inner surface to conform to the shape of the groove in the insulator, and the outer surface is formed with double concave faces which meet to form a bead e to produce the requisite rigidity. At the ends of said loop are two lugs ff which extend upward and over the loop for a sufficient distance to form slots g g for receiving the wire. These slots are wedge-shaped or tapering as shown in Figs. 2 and lfOl the purpose of securely holding the wire when inserted against displacement, as it will be evident that the pull on the wire will tend to force the same toward the inner end of the slots and be tightly wedged thereby. The inner ends of the loop and the lugs are substantially rectangular in cross section to present flat surfaces to the wire in order that no injury to the latter may ensue. Atthe outer end of the lugs are formed teats 7?, h which are adapted to be bent over to close the slot when the wire is inserted to hold the latter permanently in place.

In operation the attachment is placed in position around one side of the insulator with loop seated in the groove, and the wire is then placed in one of the slots and passed around the other side of the insulator and in the opposite slot, the pull on the wire tending to force it to the inner end of the slot, to bind it in position. The teats are then bent downward by pliers or other means to close the slots and preventaccidentaldisconnection.

While I prefer to employ cast malleable iron in the construction of my improved attachments it is evident that other metal may be advantageously employed, as for instance drop-forged iron,sheet iron and steel, or their equivalents; and if necessary the attachment may be covered with a suitable insulating material, or these attachments may be constructed entirely from insulating material.

The attachments when constructed in accordance with the above description are very effective in operation, and may be easily and quickly placed in position. By reason of the simplicity of construction they may be very cheaply made, and the liability to become broken or displaced is reduced to minimum.

I claim An attachment for securing electrical 00n- In testimony whereof I affix my signature in ducting-wires toinsulators,eomprisingin co1npresence of two Witnesses. bination with a loop, lugs ff extending; upward and over to ends of said loop to form \VILLIAM I-I. EDMUNDS. 5 tapering slots for receiving the Wire, and

teats h h arranged on the ends of the lugs and Witnesses: adapted to be bent over to close the slots, snb- XVILL T. NORTON, stantially as set forth. ARTHUR BROWNING.