US1058179A - Switch. - Google Patents

Description

G. W. HART. SWTGH.

' APPLIOA'HON IT'ILED JULY 29, 1912,

1,058, 179. Pned Apr@ 8, 1913.

www 5 n ue nico@ @om .GM/mmf to extinguish the l-i 'connected in series F2., such as lamps. and a source of current the other is connected to a contact C van, ma a Para @alla ll. f ilejln @einem W. naar, or

'Mannraornnino coneau?, or narrare new senses".

R3, CNNECTCUT, A CORPRTIQN Gili' 'specification of Letters Patent. appneamaeiee any es, 1912.

Patented. Apr. 8. i913. serial No. 711,953.

.in connection with old lighting installationsl where a potential vWire is not readily a cccssibl g l lits within a hotel room ivhen-`theouter door is looked by one leaving'. lin old installations e., single pole switch commonly employed for controlling' all the lightsivithiu a hotel room, which single pole switch. is usuallyv located near the outside door, so that. the cireuitfis accessible near the door, although no potential circuitis usually accessible at that point. l have discovered ,that if the local circuit containing the solenoid end ...local circuit controller ot the switch described in the application above mentioned is electrically connected to the main switch terminalt so as to he in shunt to the main switch arm. that said switch mechanism'can be used to control the lamps mi such old installations without the use of a potential circuit.

The following is a description of an our,

bodinentfoi" my invention. reference being hadl to the accompanying drawings7 in Which- Figure l shows a side elevatioi'i ofthe switch 'embodying my invention. partly in diagram. -Fig Q shoivs a side elevation oi the upper part of the switch. with the ing' shownin section. Fijo'. 3 shows a similar View With the parts in diilerent positions. Fig. i shows a plan view. with the-cap removed. i

y Referring more particularlj.v to the dranvh ings. l fl are the main switch terminals With translating devices 3 by the conductors A isa main sivitcli arn'i carried by but insulated j roni a 'core 6. AWhiehils lsurrounded by asolenoid One terniiual of the solenoid is connected to the' terminal plate l'; While. I A conl engagement with the abutment ll. the con- 'tent ou one o1 its tact 8'v is connected by the conductor 9 to the terminal plate 1, forming parts of a local circuit'in shuntl to said sivitcli arm.` The' upper end of the by the upper jection 1G.

1241's a U-shaped detent movably mounted in the switch casing by a pin 13. This deliinbs has a stud le; with Which one end l5 of a spring surrounding the pin lll cngagcls. the other end l5 engagiiug with to cause the dotcul l2 to more toward the projection i() and into engagement. with the abutment il when the core is raised to its uppermost position, as shown in Figs. l ancl- .The dctent l2 is provided with a tail piece i6, which projects into the path of a portion l? of au actuator 18. The actuator. when free to move, returns to the l ion shown in Fig. 3, by reason of the spring ,t9 bearing,r against the pin 19.

surface of a notch in the prolilhen the actuator 1S is pushed inward to with thc alixniieut ll.

the position shown in Fig. 4, the portion 17 thereof 4passes beneath the tail Apiece 16, lifting.` it into the position shown in Fig. 52. This mores the dctcnt l2 out of engagement; `so as to permit the core. together with the switch arn'i 5, to fall, with thc result that its electrical conuecil'ion between the terminal plates l-l is bro (en. The dctcnt then bears i surface oi the projection 10. so that the de-V tent held iu vertical position, asshown in Fig. Mounted upon the pin i3 between the limbs of the iJ-shaped detent l2 is a local circuit controller 20. carrying a con tact plate 2i insulated therefrom and adapted to electrically connect and disconnect the terminals SWS. spring-'Q2 surrounding the pin Vlf3 hasl one end QS bent so as to bear against the lc'l't hand vertical t'acc of the detentjl. while the other end Q4 bears against the upper surface of the controller, With the result that a yielding connection between the tivo is afforded, so that the detentl ,can be moved out of engagcnient iyith its abutment il, even it' the controller is restrained yfrom moving, and the controller tendsjto move to closed position. Thecontroller has on itsv rear upper end a projection o'rhook 25;, which engages the right hond faceoftne detent liso that mhenuthedtent la? i: in

core is provided with a 1 projection l0, having anabutment 1l formed iis the casing so that the spring tends against the vertical llo local circuit controller for said solenoid, said solenoid and said local circuit controller beingkin Y a circuit controller normally tending to close said local circuit, a detent for holding said switch arm in engagement with said terminals and normally tending to move toward holding position, and actuating means, said actuating means when actuated engaging said detent so as to cause it to release said arm and holding said circuit controller in open position, and when in non-actuated position releasing said circuit controller and being out of operative engagement with said detent.

L). ln .a device of the character described, the combination of circuit terminals, a switch arm for electrically connecting the same normally tending to move out of engagement therewith, a core connected to said switch arm, a solenoid for said core, a local circuit controller in series with said solenoid and in shunt Awith said switch terminals, a detent for holding said switch arm in closed position, and an actuator for simultaneously controller in open position when in actuated position and free from said detent and controllerivhen in non-actuated position.

J-i. ln al device of the character described, the combination of circuit terminals, a switch arm for electrically 'connecting the same normally tending to move out of engagement therewitl1,'a core connected to said switch arm, a solenoid for said core, a local circuit controller in series With said solenoid and in shunt to said switch terminals, a detent for holding said switch arm in closed position, an actuator for simultaneously releasing said detent and restraining said controller in open position when in actated position and tree from said detent and controller when in non-actuated position, and translating devices, said switch 'arm and controller being in series with said translating devices but not with each other.

GERALD W. HART. lVitnesses H. A. HART, S. MOODY.

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