US907108A - Insulator for circuit-breakers. - Google Patents

Description

L.L.ELDBN.

INSULATOR FOR CIRCUIT BREAKERS.

APPLICATION FILED DEC. 2, 1903.

907, 108. Patented Dec. 15, 19%.

' iineoa a:

barren Parana onrron EONARD L. ELDER. ()F UOHCHESTER, MASSACHUSETTS, ASSIGXOR TO SEARS B. CONDIT, JR,

Ob BOSTON, MASSACHUSETTS.

INSU. ATOR FOR CIRCUlT-BREAKERS.

To all whom it may concern:

citizen of the United States, and residing in Dorchester, in the county of Suffolk and State of Massachusetts, have invented an improvement in insulators for Circuit- Breakers, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The purpose of my invention is to provide an improved insulator for circuit breakers, switches and the like which shall prevent destructive arcing, and to this end I have provided, in connection with a support for lined and movable electrodes, an oil well or pen or receptacle for inclosing the electrodes and adapted to be raised and lowered with relationthereto, certain of the features of my invention being divided out of my application, Ser. No. 65,241,1ileddune 20, 1901, now Patent No. 756,344, dated April 5, 1904.

In its simpler form my invention comprises in its embodiment, a circuit breaker or the like depending from a bracket or other support carrying cooperating makeand-break contacts, combined with a detachable oil insulator adapted to be placed in position for immersing said contacts without disturbance of the mechanism.

Further details of construction and advantages thereol willbe pointed out in the course of the following description reference,

.being had to the accompanying drawings.

in the drawings, Figure 1 is a view showing the insulating receptacle in central longitudinal section, and also showing in side elevation one form of circuit breaker, the subject matter of this ligure being divided out from my application tier. ho. 65,2l1, filed June 21), 1901. Fig. 2 shows in end elevation details of the lower portion oi the switch. Fig. 3 is a sectional detail looking at Fig. 1 toward the right, showing the detachable supporting ears. F g. t is a fragmentary detail showing the fastening means for the oilwell.

At the rear side of the switch board or other support A, as shown in Fig. l, is hung a pan a which may be composed of any suitable material but is preferably made of metal a and provided with a wooden or other non-conductive lining (L The pan is Specification of Letters Patent.

Qriginal application filed June20, 1901, Serial No. 65,241.

. Serial No.

preferably supported at one end on bolts a Patented Dec. 15, 1908..

Divided and this application filed December 2, 1903. 183.458.

I by means of cars a, 3, and at its opp0- Be it known that I, LEONARD L. ELDEN, a

site end by a hail a? hung on a hook a secured to the rear side of a bracket a whose head a is bolted to the switch board. The bracket a supports the rear portion of the circuit breaker, being provided for this urpose, as shown in Fig. 1, with vertica insulating posts a which support at their lower ends a base block a of wood, ebonite, or other proper insulating material. The block a carries on its upper side opposite pairs of contacts or electrodes a, three pairs thereof being herein indicated, adapted to receive the wires from a three-phase generator or the wires of any other three circuits which may be interrelated in such a manner that it is desirable to make and break the same simultaneously. The wiring, etc, are more fully shown and set forth in my Patent No. 756,344 dated April 5, 190%, before mentioned. Each contact a is provided with a post a having a socket a" at its upper end for receiving said wires preferably above and outside of the insulating pan or tank a.

As the details of this circuit breaker are not herein claimed, but form the subject matter of another co-pending application, it will be sufficient to mention briefly that it carries corresponding sets of contact makers or electrodes a secured in proper position on an insulating bar a adapted to cooperate with the contacts a, the bar a being guided in vertical movement by the posts a and operated by a link 0, secured to said bar a at e and secured at a to the free end of a bell crank a, pivoted at e in ears a? extending rigidly from the bracket a The opposite end of the bell crank carries a roll a operating in a slot at of a plunger reciprocating in the bracket a and normally pressed inwardly by a powerful spring a, the plunger being adapted to be operated by a handle or any other suitable actuating device not shown. It will be obvious that this construction ofinsulator and breaker permits the indefinite extension of both to correspond to any number of circuits which it may be desired to break simultaneously, simply by extending the bar a and the pan a and other parts'correspondingly.

in situations where the regular switch board cannot be put in position, it is advantageous to mount the panand actuating apparatus on the same side with the hand lever or other operating mechanism, slight mechanical changes being .made to permit the same; and in general it will be understood that I do not restrict myself to the form and arrangement of insulator herein described, as various modifications and other embodiments may be resorted to without departing from the spirit and scope of my invention as defined in the appended claims, I-laving described my invention, what I claim as new and desire to secure by Letters Patent, is v 1. A circuit breaker, having separable cooperative contacts, and vertically movable means for carrying one of them, combined with a horizontally movable actuating device, horizontal movement of the latter moving the former and said contacts straight up and down, and a support for said mechanism at theupper portion thereof, said mechanism depending therefrom, leaving a freespace about the contacts and adjacent parts,

and a suspended and vertically removable inclosin receptacle for oil.

2. An oil-switch, com )rising an overhanging support andfixed anc movable electrodes dc ,ending therefrom said su ort havin fastening means for securing it permanently to the switch board, and an oil insulator in.

closing said electrodes and provided at its upper portion with suspending means for suspending said insulator in an immersing position about said depending electrodes, beneath said fixed support. I

3. An oil-switch, comprising a fixed horizontal support, fixed and movable electrodes carried by said so port and depending therefrom, and an oi well vertically movable about said electrodes without disturbing them, said oil well being provided with means for detachably engaging said fixed sup ort, and when so engaged, maintaining sai electrodes submerged in oil .in all the operative movements of said electrodes.

4-. An oil-switch, comprising a. fixed support provided with means for securing the same to the switch board, fixed and movable,

With suspending means for removably suspending said oil well in submerging position with relation to said electrodes.

5. An'oil-switch, comprising a horizontally-extending supporting means, fixed and movable electrodes depending therefrom, and an oil well removably suspended beneath said-support, in osition to submerge said electrodes in all t eir operative movements, said oil well being removable without disturbing said electrodes.

6. An oil-switch, comprising ahorizontallyextending support provided with means for securing the same to the back of the switch board, fixed and movable electrodes depending from the rear end of said support, operating means therefor extending from said support to the opposite side of the switch board, and an oil welldetachably suspended by said support, in submerging relation with said electrodes. 7. An oil-switch, comprising depending fixed and movable electrodes, operating means therefor, an'oil pan having opposite ears containing elongated perforations, cooperating headed supporting means for de tachably receiving said ears, and supporting means for detachably retaining the opposite upper side of the oil pan.

8. An oil-switch, comprising depending fixed and movable electrodes, 0 crating means therefor, an oil pan providec with a bail, an overhanging bracket having at its rear end a su porting hook adapted to receive said be e, and means for supporting the opposite side of said pan. v

In witness whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

LEONARD L. ELDEN.

,Viitnesses 'SEARs B. CONDIT, Jr., GEO. H. MAXWELL.

Images