US906740A - Push-button electric switch. - Google Patents

Description

J. G. PETERSON.

Patented Dec. 15, 1908v nnrrnn STATES PATENT enrich.

JOHANN GODFREY PETERSON, OF HARTFORD, COXNECIIUUT,

ELECTRIC COMPANY, OF HARTFORD, CONNECTICUT,

ASSIGNOR TO THE ARROW A CORPORATLON OF CONNEUlltLT.

PUSH-BUTTON ELECTRIC SWITCH.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed September '16, 1908. Serial No. 453233.

.T 0 all whom it may concern:

Be it known that I, JOHANN GODFREY frame plate This invention relates to an. oscillating sna push button lectric switch.

. The object of the invention is to provide a mechanism for locking and releasing the pole plate, which is so simple and compact that the operative part of the switch can be mounted in a receptacle which is much shallower than the receptacles of the switches in common use, thereby cheapening'the construction and the cost of transportation, storing, and installing. g t

Figure 1 of the accompanying drawings shows an elevation, on enlarged scale, of one side of the operative mechanism of a push button switch that embodies this invention. Fig. 2 shows an elevation, on the same scale, of the opposite side of the same switch mechanism. Fig. 3 is a view similar to that shown in Fig. 1 with the movable pole plate 7 to which omitted. Fig. 4 shows an edge V16W ot the switch mechanism. Fig. 5 shows an edge View and a face. view ofthe frame that sup ports the operating mechanism of this switch. Fig. 6 shows a face view and an edge view of the lock plate. Fig. 7 shows an edge view and a face view of one of the look ing levers which engage and hold the lock plate while the throwing spring is being made tense.

The supporting frame 1 is referably stamped from steel with perforatec feet 2 extendin outwardfy from the lower edge for mounting it on the bottom of the receptacle. This frame has a tubular hub 3 which, rojecting from one side, supports the spin le 4 upon which the lock plate '5 is mounted. The movable contact or tened to and carried by, the lock plate.

Mounted upon the frame hub 3 is the yoke th'e shanks 8 of the push buttons 9 are pivoted. A spring 10 is coiled about a sleeve 11 on the hub, and its ends 12 are bent outwardly so as to extend on opposite sides of the lug 13 that projects from the yoke late and the lug 14 that projects from the ock plate.

pole plate 6 is fasut insulated from following is a spe'cifica- Pivotcd on the back of the supporting are a pair of locking levers 15, the upper ends of which above the top edge of the frame are bent outwardly to form fin- ;gers 16 which are designed to engage the shoulders 17 of the lock plate.

The locking levers at their lower ends beneath the lower edge of the frame have feet 18 which are engaged by the ends of a spring 19 that is looped about the hub of the frame in such manner that the feet are normally forced from each other-and the fingers held in contact with the upper edge of the lock plate, until the feet are engaged by the tips 20 of .the shanks of the push buttons and the levers rocked against the pressure of the spring.

'When one push button is depressed and the yoke rocked, the yoke lug, engaging with one end of the actuating spring, places the spring under tension, the other end of this spring being retained by the lug that projects from the lock plate that is held by one of the levers mounted on the frame until the tip of the shank of the push button engages the foot of the lever that is holding the lock plate and moves that lever so as to disen age the finger at its upper end from the locking shoulder of the loc plate, allowing the spring to throw the lock plate and the pole plate carried by the lock plate.

This mechanism is the same for a single or double pole push button switch. But one pole plate is shown in the drawings, the other lug being omitted from one end of the spindle to simplify the drawings. The construction illustrated and described herein is simple to manufacture for the frame, levers and several plates can be stamped to positive and sure for the'locking levers are strong and of such length and are so engaged by the tips of the push button shanks that they rock easily and readily free themselves froin the locking plate. And yet the construction is such that the height of the actuating mechanism is quite low allowing it to be placed in a very shallou receptacle.

' he invention claimed is;

A push button switch mechanism having a supporting plate, a spindle supported by said plate, a lock plate mounted upon said spindle, levers pivoted on the supporting plate and adapted to engage the lock plate, a

spring carried by the supporting plate and iinal shape, and the action 18 t eng'alging the lower ends of the locking levers button shanks whereby the levers are diseII- I0 and adapted to hold the upper ends of said legaged from the lock plate when the spring vers' in engagement with the lock late, a is under suflioient'tension, by the engagement yoke mounted on the spindle, push uttons of the tips of the push button shanks with 5 connected with the yoke, an actuating the feet, substantially as specified.

spring with its ends engaging lugs projecting JOHANN GODFREY BETERSON. from the yoke and the 100k plate, and feet Witnesses: v rojecting from the lower ends-of the locking HARRY H. WILLIAMS,

evers into the path of the tips of the push JOSEPHINE M. STREMPFER.

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