US1782836A - Electric snap switch - Google Patents

Description

Nov. 25, 1.930T F, A, YOUNG ET AL 1,782,836

ELECTRIC SNAP SWITCH Filed Nov. 27, 1928 W2@ swam Patented i Nov. 25, 1930 UNITED srATEs 1 ATIz1Sr1fA OFFICE FRANK A. vOiINa 'AND RAYMOND H, BOARDMAN, or MERIDEN, CONNECTICUT, As-

sIeNORs, BY MEsNE ASSIGNMENTS, To CONNECTICUT TELEPHONE a ELECTRIC ELECTRIC SNAP SWITCH CORPORATION, or MERIDEN, CONNECTICUT, A CORPORATION OF DELAWARE.

Application `filed November 27, 1928. Serial No. 322,135.'

Our invention relates particularly to switches having a ratchet action 0f therotary type andit .is especially designed for use in circuits where it is required to' carry' 110 VOlts.

The main obj ect is to provide a simple inexpensive but reliable mechanism which can be readily mounted in the panel board of a radio set or the like. l

` In carrying out the invention we provide a housing having a sleeve adapted to be supported in the panel board. The stationary contacts are supported in an insulating disc in the rear of the housing and the rotary switch member and ratchet mechanism are mounted i on a shaft or spindle which is supported atthe fao rear end in the disc and at the front n the sleeve of the housing. o

' Fig. 1 is a side view of a device embodying `our invention showing it supported'v in a v panel board.

Fig. 2 is a rear view of the device. Fig. 3 a longitudinal sectional view of the device on a larger lScale. i

s Fig. 4 is a front view of the'insulating disc hich supports the stationary contacts.

Fig. y5 is a perspective view showing onel of the stationary contacts and its terminal stri r Fligf is a detail view of the conducting part of the rotary switch member. Y

ig. 7 is a side view and partial section of an insulating collar forming part of the rota switch member. y,

lliYig. 8 is a detail view of the metal part of the ratchet member. Y Fig. 9 is a detail view 0f an insulating washery forming part of the ratchet ember. Fi 10 is a side view of the main s aftor spin le. Y

y The sleeve 11 which serves, as the main support is adapted to be mounted in a panel board orother support 12 to whlch 1t may be secured by' clamp nuts 13. i The shaft 14 may be of metal and extends lthrough the sleeve 11c in which it is rotatable. The shell 15 of' the housing is/"secured f. to the sleeve of theV housing in any-suitable manner.

`The disc 16 may be formed of insulatmg 'the rear to hold the washer 19 material to fit the rear end of the shell 15.l The end 17 of the shaft is reduced in diameter and extends through the disc16 and is" riveted over the Washer 18. A fibre washer y segments 23 and 24 arranged in pairs. i Thev stationay contacts 25 are inclined similarly and provided with terminal strips 26 which extend through passages 27 in the disc 16.

Lugs 28 .are partially cut from' the sides of these strips 'and bent over as shown in Figs.-

2 and 3 to hold the terminal strips and their contacts in place.` l 1, i l

The rotary switch member has a ring 29 with inclined spring'arms 30 adapted to be d rotated" over the -surface of the inclines 24 and the contacts 25 in one direction. This member 29 is'also provided With ratchet teeth 31 ,inclined .int'the opposite direction to the direction of inclination of the arms 30. The` coact with the teeth 31. It also has ears 37 adapted to bel/bent over intothe notches 39 in the edges of the washer 35. The washer has a central opening 38 adapted to receive the shaft 14. The .spring 4001i the shaft 14 presses vat one end against tlie U-shaped washer 41 and at the other against the ratchet member 35. The U-shaped or forked washer 41 is slipped into a groove 42 in the shaft and may serve as a bearing 'for the shaft in the recess 43 in the sleeve. The switch is operated by rotating the shaft 14 by any suitable means. Y

When-the 'shaft is rotated in a right hand direction the rotary switch member is rol ing a double make land break with a snap" tated through the instrumentality of the washer and ratchet member 34, the teeth 36 engaging` the backs of the teeth 31. The switch may thus be rotated step by step as-the arms `snap from the inclines 24 on to the inclined contacts 25 and off again, thus affordaction. In case `the switch knob or lever is rotated backward, that is, in a left hand direction, the ratchet teeth 36 Will ride up the" inclined teeth 3l without effecting the switch or injuring any of the parts.

We claim:

1. A snap switch comprising a supporting sleeve, a housing carried thereby, an insulating disc closing the rear end of said housing contacts carried by said disc, an operating shaft rotatably supported at the rear in said disc and near the front supported in said sleeve, a rotatable switch member mounted on said shaft but insulated therefrom and a spring pressed ratchet member insulated from said shaft and co-acting with said switch member.

2. A snap switch comprising a supporting sleeve, a housing ca ,rried thereby, a molded insulating disc closlng the rear end of said housing contacts carried by said disc, an operating shaftl rotatably supported in said disc, a fibre disc covering the rear end of said shaft, a rotatable switch member mounted on said shaft but insulated therefrom and a switch member A havin gears bent over at the spring pressed ratchet member insulated from said shaft ande co-acting [with said switchmember.

3, A snap switch comprisin a supporting sleeve, a housing carried there ing disc closing the rear end of said housing, said housing and disc having interfitting parts to prevent relative rotation, contacts carried by said disc, an operating shaft rotatably supported at therear insaid disc, a

`rotatable switch member mounted on said 1 shaft but insulated therefrom and -a ratchet lmember insulated from said shaft and co- .acting with said switch member.

f4. A snap switch comprising an insulating "disc having ratchet teeth at the front, contact segments on two op ositely 'dis osed 4teeth having conducting strips inte al t erewithextending rearwardly throug said disc for circuit connections in the rear,.a shaft rotatably supported by the disc and a ratchet operated swltclr member Vcarried by :said

shaft and coacting with said contact se'gments and ratchet teeth 5. A snap switch comprising an insulating disc having ratchet teeth in the front, contact,

segments on two 'oppo'sitely disposed teeth Ahavin conducting stri s integral, therewith exten lli ng rearwardly t rough lsaid disc for circuit connectlons 1n the rear, said strips a shaft. rotatably supported b y the disc and a carried by sud shaft and coan' insulatrear of said disc,

acting with said contact Vsegments and ratchet teeth. x

6. A snap switch comprising an insulatingdisc having inclined segments at the front,

- contact segments on two oppositely disposed inclined segments having conducting strips integral therewith extending through said disc for circuit connections, a shaft rotatably .supported by the disc, at the rear a ratchet operated switch 'member carried by said shaft and coacting withsaid contact segments and ratchet teeth, a spring and an abutment washer on said shaft, and a housing for said parts including a supporting sleeve, said washer being located in said sleeve.

7. A snap switch comprising a disc having a number of pairs of inclined ratchet teeth at least two of said teeth being formed of conducting material to constitute stationv v-switch member and a spring mounted on said shaft and pressing said ratchet member towards said switch member. n.

FRANK A. YOUNG,

RAYMOND H. BOARDMAN.

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