US1272941A - Switch. - Google Patents

Description

C. E. GODLEY.

SWITCH.

APPLICATION FILED DEC. 30. 1916.

1 $7234 1, Patented July 16, 191

WITNESS l/VVE/VTOR QM ova w}. Q 0 Mr @1 W A UNITED STATES PATENT OFFICE.

CHARLES E. GODLEY, 015 DETROIT, MICHIGAN, ASSIGNOR '10 EDMUNDS AND JONES CORPORATION, OF DETROIT, MICHIGAN,.A CORPORATION OF NEW YORK.

SWITCH.

Specification of Letters Patent.

Patented July 16, 1918.

To all whom it may concern:

Be it known that 1, CHARLES E. GoDLEY, a citizen of the United States, and residing at'Detreit, in the county of Wayne and State of Michigan, have invented a new and Im proved Switch, of which the following is a specification.

This invention relates to switches especially adapted for low-voltage currents and partlcularly to switches that may be closed and opene by successive actuations of a reciprocatin plunger or button, and its object is to provi e a switch of this character which shall be of few parts, which will not readily wear out, and which may be manufactured at low cost.

This invention consists of the details of construction illustrated in the accompanying drawing and particularly pointed out in the claims.

In the drawing, Figure 1 is a side elevation, Fig. 2 is a rear elevation and Fig. 3 is a plan of this improved switch. Fig. 4 is a plan of the stop plate. Fig. 5 is an edge view of this stop plate. Fig. 6 is a plan of the switch plate. Fig. 7 is a rear elevation of the actuator.

56 also be provided with small Similar reference characters refer to like parts throughout the several views.

This switch consists generally of a block 1 of insulating material such as vulcanite, indurated fiber or guttta-percha, and a supporting member which in the drawing is shown to consist of a curved plate 2, a rearwardly bent portion 3 having a pair of fingers 4 that engage the block 1, and an arm 5. The arm 5 and plate 2 may be formed to fit against the body to which the switch is to be secured. A button 6 of insulating material is slidable in an opening in the plate 2 and connected to the actuator 7.

A sto -plate 8 is provided with notches 9 into w ich the contacts 10 extend. These posts project up above the upper surface of the bed '1 a less distance than the thickness-of the stop-plate 8 and are of less diameter than the notches 9 in order that there.

shall be no contact between the posts. and stop-plate. The posts 10 extend a suflicient distance below the bed 1 to be provided with locking screws 12 that engage the ends 13 of the electric conductors 14.

A headed pin 15 is mounted in the block 1 and centers the stop-plate 8 which may tongues 16 that extend into the material of the block 1 and prevent the stop-plate from turning. This pin also centers the circular switch plate or disk 17 having upwardly projecting ratchet teeth 18 and downwardly extending tongues 19.

The actuator plate 7 has a downwardly extending tongue 20 that is adapted to engage the teeth 18 of the disk 17. The pin 15 extends through a slot 21 in the actuatorplate 7 and limits and guides its movements. A spring 22 has substantially one half .between the head of the pin 15 and the actuator plate 7 and the other half between this pin and the push-button 6, the actuator 7 having an upward extension 23 that connects to the push-button and also has a small finger 2 1 that extends through a hole 25 in the forward part of the spring, as indicated in dotted lines in Fig. 7.

It will be noticed that the stop-plate S has three notches 26 spaced 120 degrees apart, and other notches between them. The rear walls 27 of the notches 26 are engaged by the tongues 19 on the disk 17 at the end so I of each alternate operating movement of the push-button 6. The wall 28 of the notch 29 is engaged at the ends of the other strokes by one of these tongues 19, at which time the other two tongues 19 will. engage the posts 10.

When contact posts, be closed and tuator-plate 7 will be in this circuit. The supporting member consisting of the plate the two tongues 19 engage these the circuit between them will the stop-plate 8 and the ac- 2 and arm 5 is always insulated from these posts as the parts 7, 8 and 17 and the spring 22 are never in contact with the plate 2 or arm 5. I

When the switch-plate 17 has been given a one-sixth rotation, the tongues 19 will-disengage the posts 10 and enter the notches 26, the disk 17 then resting on the plate 8 out of contact with the posts 10 and the circuit between the posts being broken. The

spring 22 yields at each ret urn movement of the actuator to permit the tongue 23 to ride up and over the next ratchet tooth 18.

It also yields when the tongues 19 ride up over the metal between the notches in the plate 8.

It will beunderstood thatthe shape-of" the support for the block. 1 has-noth ng to do with the present invention.

I claim V r 1. In 'a switch, the combination of 'a support and a block of insulating material supported thereby, a headed pin mounted on'the block, a notched stop-plate mounted on the bed and positioned by the pin, a pair of contacts carried by'the bed and extend-' I ing upward therefrom, a switch-plate r tatably mounted-on the stop-plate and having downwardly extending tongues adapted to engage and disengage the contacts and also to engage in the notches 1n the stop plate to prevent the switch-plate from turnthe switch-p push-button to return. the

ing back, said switch-plate having a central opening to receive the'pin' and a ring of upwardlyprojecting ratchet teeth concentric with the pin, an actuator slidable over the switch-plate and guided by the pin and having a downwardly projecting tongue that engages the ratchet teeth of' the switch-plate, a push-button connected to the actuator, and a spring formed of a.- thin strip of metal mounted on the -pin, onetheblock, a pair of contacts projecting from the block into two notches in the stop-plate a less distance than the thickness of the stopplate, an actuator sli dably mounted on the pin and having a downwardly projecting tongue, a circular switch-plate rotatable on the pin and having upwardly extending teeth adapted to be engaged by the tongue on the actuator and having downwardly extending tongues adapted'to engage the contacts at each alternate operation by the actuator, and a spring mounted on the pin and having both ends in engagement with the actuator to force it against the switch plate and to return it to normal position.

3. In a switch, the combination of a pair of contacts and a disk rotatably 'mounted above the contacts and provided with down wardly extending tongues adapted to engage and disengagethe contacts andwith upwardly extending ratchet teeth, a pin on. which this disk is centered,-an actuator slidable transversely of the disk and having a tongue adapted to engage the ratchet teeth to turn the disk, and as spring formed of a strip, of resilient metal having a hole in termediate its ends through which the pin extends, one end of the strip being bent 'to U shape'and engaging the actuator to press it against the diskand theother end of the strip being also bent to ,U shape and engaglng the actuator to slide it longitudinally in one direction. g

4. In a switch, the combination oit'a block of insulating material and a air of contacts carried thereby, a pinprO ecting from the insulating material, a circular omm,

plate mounted thereon and provided with projections adapted to engage and disemgagethe contacts, means slidably guided by the pin adapted to engage the contact-plate and turn it step by step, and a spring mount- 1 ed intermediate its ,endson the pin to press.

said plate-turning means against the contact-plate and to return it 'to normal position.

' CHARLES sooner.

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