US453633A - Lawrence f - Google Patents

Description

(No Model.)

L. F, PURLONG 8v F. O.ITUGKER.

ELECTRIC SWITCH.

No. 4531633. PatentedJune 9,1331.

VUNITED STATES Partnr Ormes.

LAWRENCE RFURLONG AND FREDERICK O. TUCKER, Oli vi.JIR'FIVORI), CON- .NECTICUT; SAID FURIJONG ASSIGNOR TO ANOS WHITNEY ANI) h'l'lll lV.

BISHOP, BOTII OF SAME PLACE.

LECTFMC SWlTCt'i.

SPECIFICATION forming part of Letters atent No. 453,633, dated J une 9, 1891. Application filed October 24, 189'0. Serial No. 369,383. (No model.)

'To @ZZ whom t may concern: usually au insulating substance, whichI is se- 5o y Beit known that we, LAWRENCE F. FUR- cured to the base so as to have an oscillatory OitGt and FREDERICK Q. TUCKER, citizens of movement, preferal'nly by pivoting it upon the the United States, residing at Hartford, in stud or pillar h, bears inward projecting the county of Hartford and State of Conblocks (,oinsnlating material, se located necticut, have invented certain new and usethat when the cap is oscillated in one direc 55 fill Improvements in Electrical Switches, ot tion the blocks` strike the movable contacts which the following is afull, clear, and exact near the angle, thrust them awayfroin the specication. y stationary contacts, and pass between the ro The invention relates to the class of electriseparated contacts until reaching the hooks .calswitches more particularlyadapted for use or stops. This movement of the cap causes 6o in opening and closing incandescent circuits;` the blocks to quickly open the circuit by and the object is to provide a switch so eonpassing between the contacts,\vl1ere they revstructed that the opening and closing can be main to prevent any possibility of an are bc- I5 ql1iokly accomplished and pieces of insulating established between the contacts. An

` ing material passed between the contacts oscillation ot the cap in the opposite direc` 65 Y when they are separated, to prevent the postion withdraws the blocks, and the movable sibility of arcing the current; also to provide contacts, ander the impulse of the springs, it'

a simply-operated switch having no projectsprings areprovided, quickly join thestatlon zo ing handle or button. ary contacts, closing the circuit. lt no springs Referring to the accompanying drawings, are provided, er to supplement the action ol 7o Figure 1 is a plan'view with the cap rethe springs and insure a good contact, the moved, showing'the switch closed. liig. 2 is blocks are formed so as to pass back of the a similar View with the switch open. Fig. 3 movable contacts, as shown in Fig. l, and z5 is a Vertical section ou plane denoted byline torce them tightly against the stationary conacof Fig. 2; and Fig. 4 is a plan viewof the tacts. y 7 interior of the cap. It is not essential that one pair of contacts In the Views, the letter a indicates the base, be stationary, as both might be made movwhich is made of wood, porcelain., insulating able and the insulated blocks made to pass be- 30 composition, or the like, preferably in a cirtween and separate them inthe manner decular form, adapted to be fastened to a wall scribed without departing from our inven- So or .ceiling and provided with a central stud tion; nor is it essential to the invention that or pillar b. 'Upon opposite edges of one surthere he two pairs of separable contacts termface of the base are secured stationary coning a doublepole switch, which, however, is

3': ducting-contacts c, having parts that prefcrpreferable, as the separation of one pair olf ably pass through the base and are joined contacts would open the circuit. with the ends of the circuit-wires by any com- .The switch is simple, cheap, so constructed mon form of binding-screws or clamps. '.lo' as to insure a goed contact between the ter posts d, which also pass through the base and minals, when desired, and prevent the possi- 4o are joined with the other ends of the circuitbility of an arc across the terminals when the wires by suitableclamps, conductingcontacts circuit is opened, and is neat and attractive 9o c are hinged or pivoted so as to swing into or in appearance, as there is no projecting butout of contact with the adjacent stationary ton or handle on which articles can catchand contacts. The movable contacts are usually which is a source of great temptation for per- 45 formed with an angle at their center and a sons to grasp and snap.

stop or hook at or near the free end, and are We claim as our invention-w preferably.normallyheld against the station l. In an electrical switch, in combination, my @0m-ams by Springs, a base bearing stationary and-movable con- Acap f, formed of any desirable nuiterial, tra-cts. and a mexable cap bearing blocks adapted to separate the contacts, Substantially as specified.

' 2. In aneleetrleel switch, in combina-tion, :L base bearing stationary and movable confacts, and L movable cap with projecting ineulating-bloeks adapted to pass between and separate the contacts, substantially as speelfied..

3. In an electrical swltel1,ju combination, ad base bearing stationary and movable conmets, and a movable cap bearing blocks adapted to separate and join the contacts, substantially 'es specified.

LA'YRENCE F. FURLON G. FREDERICK O. TUCKER.

W tnesses:

Il. R. WILLMMS, WM. H. HAND.

Images