US926001A - Switch. - Google Patents

Description

G, W. HART.

SWTGH.

APPLICATION FILL, 00115, 1908.

Patented June 22, 39%.

2 SHEETS-SHEET 3..

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G. W'. HART.

SWITCH.

APPLIOATION FILED oGT.15,-1908.

a-tenjted Jupe 22, 1909.

2 SHEETS-SHEET Z.

UNTEB STATES filiali GERALD W. HART, GF HARTFORD, CONNECTICUT, ASSIGNOR T0 THE HART MANUFAGIURJh ING COMPANY, QF HARTFORD, CONNECTICUT, A CORPORATON OFNEW JERSEY.

Specification oi 'Letters Patent.

atented irme 22, 1909.

Applicatie led @atelier l, 19%. Serial No. @$7,326.

To all. whom it may concern:

Be it known that l, GERALD l/Y. Erler, citizen ofthe United States, residing at Hart# ford, county of Hartford, State ol Connecti-- cut, have invented certain` new and' useful lrnproyenients irll Switches, ci which the following is a full, clear, and exact description. y My inverrtionrelates to double-controlled switches, by Whichol rnean. switches which are subject to both manual and electro-inagd netic control.

@ne of its objects to produce a push but t0n switch which can be operated manually at the switch and can also` be loperated electroinagnetica lly from a distance.

Another objectof roy invention is to nialie a ,switch mechanisrncontrolled electro-inagnetijcally by the boltin a door7 so that when thej ,door is locked the circuit containing the .translating devices'will be automatically interrupted. 'The `particular application of this last named featureis in connection with doors of hotel rooms ,the arrangement being l such that When' the hoteldoor is locked 'from the outside all lights in the room Within shall be automatically extinguished.

Another .object is to' mak-e -a door controlled ush button switch. y

The following is .a description of apparatus embodying my invention, reference being had to the accompanying drawings,-in Which- Figur'e l represents a side elevation oi the switch mechanism. Fig'. 2 represents an end elevation of the saine, the endshown being the left hand end oi' Fig. l. Fig. 3 isv a hoi-if Zontl section of the electro-magnetic device on the line X-X l? 1. Fig. e. is a lan view of the electro-magnetic device of Fig. i

etached from the switch proper. Fig. 5 is a view oi the switch roper as shown in Fig.' l, looking upward. A ige. 6 to i3, inclusive, are detail views o ivarious members ci 4the switch. Fig. 6 is a side/and front view of the stop plate. yFig. 7; is a side and iront vieur of' the support. llfig. S` is ajsile and iront'view ol' a Acletent. Fig. @is a side and iront view ci the actuating member'. Fig. i0 is a side vievr of :the spring. Fig. il is a side and front view of .fi-.spring plate.l Fig. i2 is a side view oit thestritlch late. Fig. i3 a side viewv ci the, switch s aft. lig. lll is a diagram of cir cuits.

Referring more partieulady to the drazvf ings, A is an'insulating porcelain base conM taining switcho1 :mechanism proper. .rus

i l l l l l mechanism consists ci. elements coni-- posing a snap -Witch manually actuated by the push buttons lim-"1. The switch consiste oi a switch-plate C adapted to electric#v ally connect and disconnect spring contacts l--B recruited-y on the base A.. Through a carrier C', the switch-plate is insulated from and secured to a shaft E jcurnaled in a support l?, which support is secured to the base A. Guided by the support is a det-ent G, which surrounds the vi'irojeetion il" on the support E. and has a projection G which passes through an opening F2 in sup Jorta'nd cornes into the path oi1 projections on the stop plate H ci the switch. rihe boss g engages the sides oi the opening F2. ribis sto Aplate is rigidly mounted upon the shaft A between the switch-plate carrier and the su p-v port F. An actuating member S is\ also mounted upon. the support l" adjacent to the detent G. This actuating'nlernber carries a projection l which 'fits in a groove or recess G2 in the detent, with the result that as actuating member is moved'in-one direction or the other through a portion oi a circle, the detent G is caused to move to or from the axis of the shaft l). This movement causes the projection G to move away 'from or toward the projections H on the stopplate Trl, as hereinafter described. The movement of the detent is always rectilineal and the engagenient between it and the actuating nieniber is a sliding engagement.

Upon the hub ci the actuating member, a c'oil spring J is placed, its two Jfree ends 1seing on opposite sideso'f4 the projection carried by the actuating nieniber. ligidly secured to the end ci the shai't is a springplate 'ii having a projection l. which aso passes between the two' iree ends ci the spring. lt will-be noted that the shaft, tof gether 7with the switch-plate, sto A' plate and springplate l, are all rijfidysecured together, and that the detent Gand ,ectiiatf ingmeinber l are free to nioverela'g" the shaft. To the actuating niemthe push. buttons Beh are loosely pivetef.. whenv the actuating inemfherv is moved hy pressure upon one or the other pi push, buttons, the det-ent is iirst forced toward the projections H" and simultaneously the projection ls engaging the one end'oif coil spring J, -theotier end being iestrnned by the projection up "n the spring-plate, 'Winds .up the coil-spring J, putting the are' detached from the plate under tension which will cause the springplate and parts connected therewith to move as soon as they'are released. Upon a further movement oi the actuating member the detent G is forced toward the shalt E until the projection G is removed from the path 0i' the projections H on the stop plate. This permits the shaft E, together with the switchplate, to revolve under the actionl oi' the Spring J, with the result that-the translating circuit is either opened or closed,` according to the push button which has been actuated. The action is the same in both cases, whichlever button may be moved.

The electro-magnetic4 means for operating the switch consists of a coil L having a magnetic shell M. This coil has a two-part iron core, the part N being movable and the part Nf being stationary, the whole`constituting" an iron-clad solenoid A spring N2 .restoring the part N to normal position when the solenoid is denergized is preferably used. 'Attached to the movable portion N is a projection O which surrounds a shaft P to which acrank pin Q mounted upon the disk Q is rigidly connected. The art 0 where it surrounds'the shaft l? is sibtted so -as to be free to move and yet be guided by the shaft ll?. The shaft P has secured to it a plate R, as shown in F ig. 4, and to this plate R a connecting plate S is secured by adjustment screws s -s. The connecting plate S is rovided with two hollow projections r,iP-#T which' are adapted to iit over projections U-U on the actuating member lI. The shaft l? is, journaled in uprights V-V which are secured by screws to a plate W, carried by thebase A. When the u rights V-V the electro'- magnetic device can e easily separated from the switch proper by reason of the detachable connections T U-U.

Referring to the diagram shown in Fig. 14,1 re resents a switch-plate which can be manna y actuated so as to make and break the circuit leading tothe translating devices.

Nrepresents a movable snlenoid coreoperae,

tively connected to the switch member 1.

LVL represents the solenoid coil which is adapt-l ed .to be connected to and disconnected from one terminal of said coil being' connected to the switch contact on the translating side vof the switch. 3 and 4 are spring terminals of a circuit controller, the

.terminal 3 being connected directly toA the coil L, while lthe terminal 4-is-connected to the vmain. The push button 6, having a bridgefpl'ate 7, is adapted to electrically connect and disconnect the spring terminals 3 and 4. The push button is normally forced outward by the spring 8. 9 is a doorhoit which is actuated by a key inserted from the outside of thevroom only. Virhen it'fis thrown so as to lock the door, as shown, it'engages the push button 6 and forces it incircuit.

ward against the action of the spring 8 until the bridge piece 7 electrically connects the spring terminals 3 and 4.

lt will be seen from the foregoing that when the door is locked and the switch l closed, the bolt 9 causes the push hutten G to complete a shunt circuit through the coil L, thus energizing the solenoid and causing the core N to be drawn down, thereby moving the switch member 7 so as to open the When the door is unlocked, the coil L is denergized and the circuit can be made and broken by the manual movement oi the switch member 1, as desired, the action being entirely unaected by the presence of the electro-mechanical device. One terminal of the coil L is connected upon the translating device side of the switch proper, so that the circuit is never broken at the push button 6 when current is flowing through it, and thereby all sparking on the break between thespring contacts 3 and 4 and the bridge piece 7 is entirely avoided.

. My invention not only provides means for automatically extinguishing the lights in a room whenever the door is locked from the outside without interfering with the use of such lights when the door is unlocked or when it is locked on the inside by another bolt, but also provides means wherebysuch a controlling mechanism a plied to any hotel door in connection wit locks already in lace without in any way requiring those loc s to be changed or altered.

'- My invention can be embodied in various other arrangements without de arting from its spirit or the principles invo ved therein.

'1. The combination oi a main circuit containing translating devices, an electric switch controlling the same and having a switch arm, an actuating member and a spring connecting said switch arm and said member, electro-magnetic means operatively' connected to said actuating member and adapted to move said actuating member positively to place said spring under tension and operate said switch, a local energizing circuit for the door jamb, in proximity to said bolt and said local circult being connected to the main-circuit i'n parallell to said translatingdevices on the, translating device side oi s aid switch.

2. The combination oi a push button switch having a quick acting mechanism, an*4 oscillating actuating member, and push-buttons for moving said actuating member 1n both directions, with electro-magnetic means ior moving said actuating memberin one direction, a circuit 'for said electro-magnetic means, and a controller in said circuit, said circuit being connected in shunt across the mains controlled by said switch on the translating device side oi' said switch, and a door switch having a quick acting mechanism, an 15 bolt actuating said controller. oscillating actuating member, and push but- 3. The combination oi' a push button tons for moving said actuating member in switch having a quick acting mechanism, an both directions, with electro-magnetic means 5 oscillating actuating member and push butfor moving said actuating member in one tons for moving said actuating member in direction, a circuit for said electro-magnetic 2o both directions, with electro-magnetic means means, and a controller in said circuit, and for moving said actuating member in one means for adjusting the operative relations direction, a circuit for said electro-magnetic oi' said switch and said electro magnetic lo means, and a controller in said circuit, said means.

circuit being connected in shunt across the GERALD W. HART. mains controlled by said switch on the trans- Vitnesses: lating device side of said Switch. EDWARD TAYLOR,

4. rlhe combination of a push button J. T. CLARKE.

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