US1689852A

US1689852A - Electrical switch

Info

Publication number: US1689852A
Application number: US140528A
Authority: US
Inventors: Hugh W Batcheller
Original assignee: BOJAC Manufacturing CO Inc
Current assignee: BOJAC Manufacturing CO Inc
Priority date: 1926-10-09
Filing date: 1926-10-09
Publication date: 1928-10-30
Anticipated expiration: 1945-10-30

Description

oct. 30, 19.28. I H. w. BATCHELLER ELECTRICAL SWITCH Filed Oct. 9. 1926 Patented a. 30, 1928.

UNITED STATES 1,689,852 PATENT OFFICE.

HUGH W. BATCHELLER, 0F MARION, INDIANA, ASSIGNOR TO IBOJ'AC MANUFACTUR- ING 00., INC., 0F WINOOSKI, VERMONT, A CORPORATION OF VERMONT.

' ELECTRICAL SWITCHL.

Application flled 0ctober 9, 1926. Serial No. 140,528.

This invention relates to electrical switches oi the push and pull type, and has for its objcvi. to provide a simple and compact switch, o; u-rnhie by a rectilinear movement of a push umi mll member.

- )t' the accompanying drawings forming a part of this specification,

Figure 1 is a side elevation of a switch embodying the invention.

l igure 2is a section on line 22 of Figure 1, showing the circuit broken.

Figure 3 is a View similar to Figure 2, showing the circuit closed.

Figure 4 is a section'on line 44 of Figure 2.

v Figure 5 is a section on line 55 of Figure 2.

Figure 6 is an end View of the insulating body of the switch.

Figure 7 is a section on line 77 of Figure 6.

Figure 8 shows separately the fixed terminals of the switch. 7

Figure 9 shows partly in elevation and partly in section the closer shifter hereinafter described.

Figure 10 shows in perspective the resilient jaws of the closer shifter.

The same reference characters indicate the same parts in all of the figures.

My improved switch comprises a holder attachable to a support, a pair of terminals 12 fixed to the holder and separated by a gap, the terminals being insulated from each. other, preferably by an insulating body portion 13 of the holder.' Said body portion shown separately b Figures 6 and 7 is a block of vulcanized fier, or other rigid insulating material, and is provided with sockets 14 (Figure 7) in which the terminals 12 are fixed, and with a cavity 15.

16 designates a gapJ-closer of conducting metal, movable in the cavity and guided by the sides thereof. The closer has a circular periphery and is preferably a ball. The Cavity 15 has guiding grooves 17 (Figures 4 and 6) in its sides, conforming to opposite portions of the gap-closer 16, and adapted to guide it toward and from the terminals 12 The movement of the closer away from the terminals is limited by a stop 18 which, in this instance, is a pin driven through the body 13, as shown by Figure 5.

The switch includes a manually movable closer shifter, comprising a pair of resilientcavity 15, and exert a yielding pressure in opposite directions on the circular periphery of the closer 16. The arrangement is such that when the shifter is in the position shown by Figure 2, the jaws act by their closing pres sure on the periphery of the closer, to press the latter against the stop 18, and hold it sepa-- rated from the terminals 12. When the shifter is moved to the position shown .by Figure 3, the jaws are first sprung outward by the periphery of the closer, and then spring inward, and act to press the closer against the terminals 12. When the shifter is moving from either of the positions shown by Figures 2 and 3, the jaws are first sprung apart by the periphery of the closer, as indicated by dotted lines in Figure 9, and then spring inward and exert shifting pressure on the closer. As may be seen by comparing Figure 2 with Figure 3, only a slight endwise movement of the shifter is required to shift the closer.

The jaws 19 and neck 20 being of conducting metal, I provide an insulating connection between the neck and the member 21, the latter being preferably metallic. Said connection is shown by Figure 9, and comprises an insulating collar 23, formed; to enter an orifice 24 in the neck and bear on one side thereof, and an insulating collar 25, bearing on the opposite side of the neck. The collars receive a reduced portion 21 of the member 21, and are clamped against the neck 20 by the operation of upsetting the portion 21" to form a bur of; head thereon.

The shank 22 is fixed to the insulating body 13, preferably by a head 26, formed on the inner end of the shank and provided with an annular flange{27, which is spun over a shoulder on the body 13, as shown by Figures 2 and 3. i

It will be seen that the-wear of the closer 16 and jaws 19, caused by'the rubbing con tact of the jaws with the closer, is very slight, hence the switch is durable.

The shank 22 may be inserted in a hole in a supporting member 28, and secured thereto by a clamping nut 29, engaged with a screwthread on the shank to press a spring washer 30 against one side of the support and confine the head 26 against the opposite side.

1. A switch comprising a holder including a body of insulating material, a pair of gapseparated terminals fixed to the holder, and insulated from each other by said body, a one-piece movable spherical gap closer of conducting material, the body being provided with means for guiding the closer toward and from the terminals, a stop fixed to and insulated by the body. and arranged to limit the movement of the closer from the terminals, and a closer shifter comprising a pair of resilient jaws connectedby a neck, and a push and pull member, fixed to and insulated from the neck and movable toward and from the terminals in a guide in'the holder, the said jaws exerting a yielding pressure in opposite directions on the spherical periph- 1.esa,s52

that when the shifter is moved in one direction, the jaws contract on the closer and press it against the terminals, and when the shifter is moved in the opposite direction the jaws again contract on the closer and press it against the stop.

2. A switch as specified by claim 1, the insulating body of the holder having sockets in which the terminals are fixed, and a cavity through which the stop extends, so that the terminals are insulated from each other and the stop is insulated from the terminals by said body, the sides of said cavit having grooves formed to guide the ga c oser in a predetermined path, and a tu ular shank fixed to the insulating body and having means for attachment to a support, thebore of the shank guiding the push and pull member.

In testimony whereof I have a'fixed my signature.

HUGH W. BATCH ELLER.