US1378660A - Switch - Google Patents

Description

C. F. CUNO.

' swlTicHL APPLICATION- FILED FEB. 12,1"920 I 1,378,660, I Patented May 17, 1921.

CHARLES E. CUNO, OF MERIDEN', CONNECTICUT.

To all w ham it may concern:

Beit known that I, CHARLES F. CUNopa citizen of the United States of Americafre siding at Meriden, Connecticut, have invent-11' ed a new and useful Switch,- of which the following is a-specification.

automobile self-starters, so-calledf The object of my invention-is to piQVide. a simple construction whichwill per it, the switches, to be economically and rape idly produced, the simplicity cheapneSs of the structure in no way sacrificing the efl'ectiveness of the'same as a switch mechanism. v

In the drawings: j v v Figure 1 is a plan view of'a portion of the switch mechanism.

Fig. 2 is a section on thei-line-2-2 of Fi 1. v *ig. 3 is a side elevation. Fig. 4 is a sectional view.

1 represents the main portion of the switch casing which constitutes a. housing. 2 is a flange around the edge of the housing 1. 3 is a cap or cover plate. These parts may be struck up from sheet metal. 4: is a sheet metal channeled member which is arranged a'mini num of expense. t

to rest in the bottom of the housing. 1 and which extends diametrically across. the centei'gy 5 represents a piece of ins'ulation'in.

the form of a channel arranged to rest snugly within the channel 1. 6 is a second piece of insulation which is channeled in form and arranged to rest inthe bottom of the channeled insulation 5. 7-7 are terminal pieces, the heads of which are arranged to rest in the bottom of the channeled insulation 6 whilethe shanks pass through the channeled insulation 5, the metal channel. 4

v and the housing 1, the shanks of each of said terminal pieces being insulated from the metallic channel'4 and the housingl by suitable insulating pieces. 7" represents an insulating washer. '8 represents a nut threaded on to the shank of. each insulat-. ing piece to hold the several parts firmly assembled in operative position. 9 represents a tube mounted on the cover plate 3. 10 I is a cap slidably mountedon the outer end of the tube 9. 11 is a switch bladewhich may be of laminated form, the same being mounted upon butinsulated from the lower Specification 0t Letters Batent.

. sw ircir.

Patented May 17, 1921'.

Application filed February: 12, 1920. Serial at. 358,042.

end of a plunger 12. The upper end of the plunger 12 is connected with the 'cap 10 and a suitable spring within the tube 9 .serves to cause the plunger 12 to stand in a retra cted"'position to hold the switch blade 11 inthe position shown in Fig. 2

and normally out of contact with the terininal pieces? The switch blade standswithin the channel'formed by the insulation 5 '1and isheld thereby in proper position to engage. the terminal pieces. 7-7 when the caplO is depressed, the 'innerside walls of the channeled insulation 5 a'ctingto guide said I switch blade. Suitable electric connections may beinade with the shanks of the respective terminal pieces"7-.7 which act as binding posts. When pressure is applied to the'cap 10, the, switch blade is forced downwardly-so as toactas an electric bridge or, connection betweenkj the two terminal pieces 7 j.7 "andeclo'se'fthe circuit. .When pressure onJlthe pai-t 10 is released, the

' spring withint'hes'leeire 9 retracts the cap 10 and e switch blfld-so as to open the ircuit. s rom the foregoing -will be seen that an exceedingly; simple and yet e'fir'ectivefiswitch construction isafforded, most of the parts of which may be formed from stamp.- ings and hence'may be rapidly produced at WhatI claim is:

, 1.. In aiswitch of the character described,

. a- -housing, "a metallic channeled piece rest- 9.0

ing inthe bottom thereof, a channeled piece of insulating material resting in said metallic channel and-supportedthereby andproi ing fallof. said parts assembled, 'a switch blade located in the channeled insulating .through said parts butinsulat dath with means on each of said shanks f r h epiece [and guided thereby and arranged to." electrically bridge thesaid terminals when moved into'contact therewith, and means for.

carrying said blade and for'moving the same into andout of contact with said terminal pieces. 1

e 2. In anelectric switch, a housing, a meta-llic channeled pie'ce located therein, a chan- I neled piece of insulating material resting in the first mentioned channeled piece and supported thereby, two terminal pieces resting through the housing and insulated there-"- in the channel piece of insulating material, with means-for furnishing electric connection with said terminal pieces from outside said housing, a blade switch arranged longitudinally in the channeled piece'of'insulating material and arranged to connect the two terminal pieces, a cap for thehousing and an operating means carried by the cap and associated with said blade switch. for operating the same.

3. In an electric switch, a housing, a 'channel of insulating material secured therein, a plurality of terminal pieces located in said channel, a blade switch positioned longitudinally between the side walls of said channel and above said terminal pieces, and means for moving said blade into and out of contact with said terminals to electrically connect and disconnect the same, and a metallic channel member located in said housing'and supporting and reinforcing the side walls of the insulating channel.

4. In a switch of the character described, a housing, a strip of insulating'material extending transversely across the housing adj acent to the base of the same and having an outstanding flange at one edge, a metallic strip locatedbetween said insulating strip and the bottom of said housing, one edge of said metallic strip being shaped to support said flange, a'plurality of spaced terminal pieces adjacent the opposite ends of said strips, each of said terminal pieces having a shank extending through said parts and from, a switch blade extending over said terminal pieces and located adjacent said flange of the insulating strip whereby the latter will hold said blade in substantial alinement with said terminals, and means for alongside of said contacts and serving to.

venting said spring-pressed member from means on said parts for'securing guide said springpressed contact member in its reciprocation in the housing.

6. In a device of the character described, a channel-shaped member, spaced apart sta tionary contact members in said channelmembers in said channel-shaped member andadapted to contact with said stationary contact members, and a strip of insulating material supported in said channel and ex tending alongside of saidcontacts for pre contacting with said channel-shaped memher during its reciprocation.

7. In a device of the character described, a cover member having a rod reciprocable therethrough,la bridging contact member carried bysaid rod, a spring for urging said bridging contact member in one direction, a

channel-shaped member below said cover and in substantial alinement with said bridging contact member, opposed stationary contact members in said channel-shaped memher and having parts extending there through and insulated from said channel member, and a strip of insulating material mounted in said channel and serving to pre vent said bridging contact member from contacting with said channel shaped member during the reciprocation of the bridging contact member.

8. In a device of the character described, a cover member having a rodreciprocable therethrough, a bridging contact member carried by said rod, a spring for urging said bridging contact. member in one 'direction, a channel-shaped member below said cover and in substantial "alinement with said bridging contact member, opposed station-' ary contact members in said channel-shaped member and having parts extending therethrough, and a channel of insulating material supported in said channel-shaped member and serving to insulate said stationary contact members and said bridging contact member-from the channel-shaped member during the reciprocation of the bridging contact member.

CHARLES F. (Juno.

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