US500248A

US500248A - Fusible cut-out

Info

Publication number: US500248A
Authority: US
Publication date: 1893-06-27
Anticipated expiration: 1910-06-27

Description

(NoModL) I S. A. YOUNG & C. ALDEN.

I No. 500,248.

PUSIBLE GUT-OUT.

Patented June 27, 1893.

UNITED STATES PATENT STEPHEN A. YOUNG AND CLARENCE ALDEN, OF MARYVILLE, MISSOURI.

FUSIBLE cur-our.

. SPECIFICATION forming part of Letters latent No. 500,248, dated June 2'7, 1893.

Application and April 8, 1893.

To all whom it may concern.-

Be it known that we, STEPHEN A. YOUNG and CLARENCE ALDEN, citizens of the United States of America, residing at Maryville, in the county of Nodaway and Stateof Missouri, have invented certain new and useful Improvements in Automatic Electric Cut-Outs, of which the following is a specification, reference being had therein to the accompanying drawing.

Our invention relates to automatic cut-outs for electric circuits, and consists in the novel features hereinafter described,illustrated in the accompanying drawing, and more espe:

cially pointed out in the claim.

The object of our invention is to automatically restore the circuit on an electric line when the "samehas been interrupted by the melting of the fusible wire incident to the transmission of an abnormal current.

The annexed drawing represents a perspective view of our improved cut-out,in which-- A, indicates the base, which maybe formed of any nonconducting material. Upon each side of this base are secured metal plates B, B, which are provided at their endswith' perforated lugs D, D, and binding screws for securing the ends of the line wires; intermediate of the plates B, B, are located plates C, C, which are provided with perforatedlugs and screws similar. to those of plates B, B; the plates 0, C, are also provided with a se-' ries of projections g, g. I

To each of the lugs E, E, we secure one end of a spring (1; these springs are provided at their other extremity with delta formed projections f, to which is attached one end of the fusible wires e, the other end being secured to the plates B, B.

Adjacent to each of the projections g, of

the plates C, we attach a metal block it, which taken with said projections form openings Serial No- 468,902. (No model.)

adapted to receive the angular ends f, of the springs d. To each of the blocks h, we secure a spring similar in all respects to those attached to the lugs E, E, until we have formed as many connections as may be desired. Normally all the springs are held out of contact with the projections g, and the blocks h, and the current passes from the line over the plates B, B, the first set of fusible wires -e, springs 01 and to the instrument or ground from the but if an abnormal current enters fuse one of the wires as shown at e, the resiliency of the spring will at once seat the angular end f, between block h, and the projection g, on plate 0, and thereby close the current through the second wire e,'and in this waythe current may be maintained practically without interruption, until all the wires 6, have been fused.

Havingthus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

In an'automatic electrical cut-out, a base of non-conducting material having electrical conductors on either side, provided with suitable connections, conductors intermediate of said side conductors provided with projections, a series of spring actuated circuit closlugs E, E 5 sufficient to ers, one end of each closer being adapted to STEPHEN A. YOUNG. CLARENCE ALDEN.

Witnesses:

IRA K. ALDERMAN, DALE V. ALDERMAN.