US734407A

US734407A - Circuit-terminal for fuses.

Info

Publication number: US734407A
Application number: US14897903A
Authority: US
Inventors: Louis W Downes
Original assignee: D & W Fuse Co
Current assignee: D & W Fuse Co
Priority date: 1903-03-21
Filing date: 1903-03-21
Publication date: 1903-07-21
Anticipated expiration: 1920-07-21

Description

PATENTED JULY 21, 1903.

E S U P .B so P L WA m .R E LY T I U 0 R. I O 7 O 4 3 7 m N APPLICATION FILED MAR. 21, 1903.

N0 MODEL.-

' of metal into the form shown in Fig. 4; but I UNITED STATES Patented J'u1y21, 1903.

PATENT OFFICE.

LOUIS \V. DOWNES, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE D. &; WV. FUSE COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPO- RATION OF RHODE ISLAND.

- CIRCUIT-TERMINAL FOR FUSES;

SPECIFICATION forming part of Letters Patent N 0. 734,407, dated July 21, 1903.

Application filed March 21, 1903. Serial No. 148,9?9. (No model.) i

To aZZ whom it may concern:

Be it known that I, LOUIS IV. DOWNEs, a resident of Providence, Rhode Island, have invented a new and useful Improvement in Circuit-Terminals for Fuses, which invention is fully set forthin the following specification.

My invention relates to improvements in circuit-terminals in which electric fuses are removably mounted, and particularly to those having two arms bearing against opposite sides of the metallic caps at the ends of the fuse.

My object is to provide means for preventing longitudinal or endwise movements of the fuse in the terminals, at the same time assuring accurate relative positioning and proper electrical contact between the parts. A further object is to provide such means with little, if any, addition to the ordinary cost of the terminals. I

The improvements constituting my invention will be more readily understood by reference to the accompanying drawings, showing one form in which it may be embodied.

Figure 1 is a side'elevation. Fig. 2 is a front elevation, and Figs. 3 and 4c are detail views'of parts of a terminal.

As shown in the 'd rawings,the terminal comprises two principal partsa conducting plate or bar 1 and a clip 2. The latter comprises two spring-arms 3 3, connected at their lower ends by a cross-piece 4, against the inner face of which one end of the conducting plate or bar 1 bears. A screw 5, adapted to pass through and secure the terminal to a suitable base, such as a porcelain block, (not shown,)

passes through an opening in the cross-piece 4 and engages a screw-threaded,opening in plate 1, clamping the parts firmly together. The clip is preferably made by bending a strip do not limit myself in this respect,as the arms may be formed in any suitable way. At one edge each arm is provided with an inwardlyprojecting lug, ear, or finger '7, constituting a stop to prevent longitndin al or end wise mo vement of the fuse in one direction. Preferably these lugs are intregal with the arms, this being the most economical way of making them; but I do not limit myself either as to the manner of formation or the location of these logs so long as they perform the intended function of limiting or preventing movement of the fuse in the terminal. Furthermore, only one .arm 3 may be provided with a lug 7.

A circuit-wire or similar connection is adapted to be held in electrical contact with plate 1 by a screw 8 and washer 9. A lng, ear, or projection 10, struck out of the metal of plate 1, leaving an opening 13, also serves to limit the movement and determine the position of the fuse in the terminal. Lug 10 may be used either alone or in conjunction with one or more lugs 7. For general use, however, I prefer to simply use one or more of the lugs 7.

The fuse 11 (shown in the drawings) is of the now well-known inclosed type having metallic caps 12 12 at opposite ends, against which the arms of the clips bear in completing the circuit through the fuse.

WVhat I claim is 1. In a circuit-terminal for electric fuses, a

conductor plate or bar, a clip comprising two ing or preventing longitudinal or endwise movement of the fuse in the terminal. 7 3. In a circuit-terminal for electric fuses, a

clip comprising two springarms between which one end of a fuse is adapted to engage, and an inwardly-pl'ojeating lug on one arm for limiting or preventing longitudinal or endwise movement of the fuse in the terminal.

4. In a circuit-terminal for electric fuses, a clip comprising two springarms between which one end of a fuse is adapted to engage, an inWardly-projeeting lug on each arm for limiting or preventing longitudinal or endto Wise movement of the fuse in the terminal.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

LOUIS \V. DOWVNES.

Witnesses:

JAMES H. THURSTON, JOSEPH A. PHILLIPS.