US987240A

US987240A - Snap-switch.

Info

Publication number: US987240A
Application number: US58878410A
Authority: US
Inventors: Charles J Klein
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-10-24
Filing date: 1910-10-24
Publication date: 1911-03-21
Anticipated expiration: 1928-03-21

Description

TME? EEA? SWITCH. .wpmwm @IL-m asrnso, iwf: www@ 00T. 24, 1910.

M! I Q@ Patened Mar, 2l, 1911 /1 I I 74M @Hazme in v @ha umfrnn srrrrns PATENT OFFICE.

CHARLES ir. KLEIN, or NEW YORK, N. Y.

'SNAP-SWITCH.'

Specification of Letters Patent.

Patented Mar. 21, 1911.

Application filed September 2f), 1907, Serial No. 393,794. Renewed October 24, 1910. Serial No. $8,784.

1b ad 'whom it may concern.'

Be it known that l, Cunnmzs J. KLEIN, a citizen of the United States, and resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Snap-Switches, of which the following is a specification.

This invention relates in certain respects to a mechanical movement and more particularly to an electric snap switch including three members, oneya member carrying the switch contact and suitably connected with aliXed support, another a cam,J and a third, a resilient tension member which, in

the particular' form illustrated, consists of a helical spring engaging the cam and connected to the` switch member. The parts are so arranged and operated inA such a manner that when a relative movement between cam and spring is produced the spring is put under tension, and in the particular embodiment illustrated, moves quickly along the engaging face of the cam pulling on the switch member with a sudden jerk and causing the switch-to open and close with a snap action.

The object ot' this invent-ion is to providev a device incorporating its essential features in a simple and inexpensive construction which may be adapted to many and various uses and whichshall be positive in its operation to effectively accomplish the desired re` Other objects will be in part obvious and will in part appear hereinafter iu connection with 'the specific embodiment herein sho'wn.

'lhc adaptability oi' thc invention to many other uses in addition to that shown will. be obvious.

To illustrate my invention l have herein shown and described a simple form of an electric switch which is adapted for use in the usual manner in connection with circuitsI iu which a quick break is desired.

ln the drawings accompany/ing lhisspeci'- Afication like parts have been given the same reference numbers in (he several views.

Figure l is a plan view ot a simple, form of knife switch. Fig. 2 is a side elevation ol'i Fig. l.

` At 1 is shown a base, which may be of iusulating material, upon Whichare mounted two Contact blades 2 means of suitable posts 3. These blades 2 are joined by a connect-ing member or cross-bar of insulating material. to which is attached .a resilient member in the form of a coiled spring 5 which is attached at either lend 6 thereof to the cross-bar 4.

An operating member 7 is mounted in the ber is moved.

ride over this tapered portion as said 4mem- Contact clips 8 provided with. suitable ,line terminals are .provided and arranged.

so that when the blades 2 are in their closed position, as shown in dotted out-line in-Fig..`

The central portion of' 2, the circuit. willbe closed from the p osts 3 lthrough the' blades 2 to the contact clips 8. Retaining members 9 and 10 are mounted upon a suitable insulating support l and canse the resilient member 5 to ride over the tapered portions of the operating member 7 as the same is moved, as will be described hereinafter.

The operation of the device is as follows: lrssuming the parts to stand in the open position'as indicated in full lines in Fig. 2, theoperaling member 7 is raised to the p0- sition shown in dotted outline, causing the resilient member 5 to engage the retaining member i.) and to ride over the high portion of the conical part of. the operating member 7 thus extending vthe spring and putt-ing thev same under tension. As soon as this high pointhas passed the tension of the spring causes the same to move quickly downward over the opposite conical portion of the operating member 7 and carries with it the blades, causing the same to swing about their pivots on the posts 3 and close the circuitihrough the contact clips 8. To open the device the operation is reversed by moving the operating member 7 downward, the resilient member 5 engaging the retaining fg i member 10 and riding over the conical poii tion of the operating membei` 7 in the manof the members 5 and 2 in the opposite direction.

It will be understood that the movement of the member 7 may be accomplished in various Ways depending i' upon the use to l' which the device is ut. It'will also be noted that the straig t line movement of the operating member 7 is transformed into a swinging movement of a third member about a fixed" pivot.

It will beA understood that my invention may be applied to devices for various uses other than the one shown and described herein and that I do not confine myself to this or any other: particular embodiment of thesam'e. It is further and particularly to be understood that I do not confine myself to any specific details of construe-tion.

As many changes ,in construction and many apparently widely di'erent embodiments of my invention could be designed "Without departing from the scope thereof,

I 'intend 4that all matter contained in the above description or shown in the accomanying drawin s shall be interpreted as illustrative mere y of an operative embodiment of my invention and not in a limiting sense.

What I claim is: v 1. In combination, a fixed support, a cam having an inclined face, a member pivoted to said fixed support, and a tension spring.

having a portion surrounding and engaging said inclined face of said cam and connected to said pivoted member to' cause said mem- -ber to move.

2. Incombination, a fixed support, a cam member having an inclined face, a. member pivoted to said fixed support, ahelical spring engaging said incline face of said cam inem and connected to said pivoted member and causing said member to inove.

connecting with said pivoted member and having one or more of its coils engaging said cam member, and a switch contact associated with said pivotcd member and actuated thereby.

5. In an electric switch, in combination, a fixed support, a cam having oppositely inclined faces, a switch member pivot-ally mounted upon said fixed support, a helical tension spring having one or more coils engaging said cam and operatively connected to said switch.V 6. In a switch incclianisni, in combination, a fixed support, a frame, a movable cani member in the form of a double conibal frustuin, a switch member pivotally mounted A upon said fixed support, a helical spring surj rounding the cam member and operatively Q connected with said switch member.

7. A mechanical movement comprising a xcd support, a cam havingopp'ositely inclined faces, a member pivotally mounted upon said fixed support, a tension spring having a portion surrounding and engaging said cam and connected with said pivoted member, said pivoted member being moved by a coaction between said three members, and means whereby said cam is moved'to shift one of said inclined faces from engagement with said 'spi-ing, and to bring the other face into engagement therewith.

8. In an electric snap switch, the combination of a fixed support, a reciprocating n'ieinber, a cam actuated thereby, a tension spring having a portion surroundin and engaging said `cani, the engaging portion of said spring brain;r bodily movable with rela tion to said cam, a switch membermcvably secured to 'd tixcd support, means connecting said suv'itch member and spring, the parts being so constructed and arranged that the recipiocation of said cani places said spring under tension and produces ay quick snap action of said switch rncinben 9. In an ciectric snap switch, the combination of a fixed support, a reciprocating member, a cam actuated thereby, a tension spring having a. portion surrounding and engaging said cam, the engaging portion of said spring being bodily movable with relation to said cani, retaining .members for said spring, a switch member movably secured to said fixed support, means connecting said switcl'i member and spring, the parts being so constructed and arranged that the reciprocation of said cam places said spring under tension and produces a quick snap action of said switchA member.

10. In an electric snap switch, the conibination of a fixed support, a reciprocating member, cam actuated thereby, a helical tension spring engaging said cam, the engaging portion of said spring being -bodily movable with relation to said cam, a switch member movablv secured to said fixed support, means connecting said switch member the p being so consiruf r ed that the reci irocation. oi'

'cam places said spring under tension and 'niemben -11. In an electric Snap switch, the combination of a fixed support, a reciprocating member, a cam having faces inclined with relation to eac-h other and actuated thereby, a tension spring having a portion surrounding and engaging said cam, the engaging portion ofnsaid spring being bodily movable with relation to said cani, a switch member morably secured to said fixed support, means `Connecting said switch member and spring, the parts being so constructed and arranged that the reci procation of said cam places said spring under tension and produces a quick snap action of said switch member.

12. l'n an electric snap switch, the combination of a fixed support, a reciprocating member, guides for said reciprocatlng membei', a cam actuated by said member, a ten- Iii sion spring having a portion surrounding and engaging said cam, the engaging portion of said spring being bodily movable with relation toA said cani, a switch member iii/.ivablyaecured to said fixed support, means n.nniecting said switch member and spring, the parts being so constructed and arranged that the reciprocation of said cani places said spring under tension and produces a quick snap action of said switch member.

i3. ln an electric snap switch, the combination of a fixed support, a reciprocating member`v guides for said reciprocating meinbei', said guides forming stops to limit the movements of said member, a cam actuated by said member, a tension' spring having a portion surrounding and engaging said cam, the engaging portion of said spring being lmdily movable with relation to said cani, a switch member movably secured to said fixed suppprt, means connecting said switch member and spring, the parts being so constructed and arranged that the recifn'ocation of said Cain places said .spring undei:V tension and prodi" a quick snap action of said .switch zncmocr.

il. In an electric snap switch, the combination of a fixed support, a reciprocating member, guides for said reci pro':.a.ting membei', said guides forming stops to limit the nuivement of said spring, a cam actuated by said member, a tension .spring having a portion surrounding and engaging said cam, thevengaging portion of said spring being bodily movable with relation to .said cam, a switch member mova bly secured to said fixed support, means connecting said switch meinber and spring. the pars being so constructed and arranged that the lreciprocation of said cani places said spring under tension and produces a quick snap action of said 15. ln an electric snap switch, the combiinclined face, a switchlmember pivotally connected with said-xed support, a tension spring havino a portion surrounding and engaging said inclined face and connected to said switch member and retainin membersl to limit the movement of sai spring.

1 6. In ,an electric snap switch, the combination of a xed support, a reciprocating cam having an inclined face, a switch niember pivotally connected with said support, a bodily movable tension spring engaging said inclined face and connected to said switch member and retaining members to limit the movement of said spring.

17. In an electric snap switch, the combination of a fixed support, a reciprocating cam having an inclined face, a switch inember pivotally connected with said support, a helical, coiled, tension spring embracing and engaging said inclined face and connected to said switch member, and means to limit the movement of said spring.

18.`An electrical switch comprising a fixed support, a cam having oppositely inclined faces, means for moving said cam, a switch member pivoted upon said support, a connection between said member and said cam including a tension spring having a port-ion connected with said member and adapted to be put under tension by the movement` of said cam, thereby actuating said switch member with a snap action.

19. An electrical switch comprising a fixed support, a reciprocating cam having oppositely inclined faces, a switch memberv pivoted upon said fixed support, a yielding connection between said member and said cam includingl a tension spiing having a portion connected with said member and adapted to be put under tension by the movement of said cam, thereby actuating said switch member with a snap action.

20. An electrical Switch comprising `a fixed su port,a reciprocating cam having opposite.)T inclined faces, said cam having secured at each end a push button for recipro iating said cam, a switch member pivotally secured 'to said support, said cam be- 'ng arranged between said pivot and the end ot said switch men'iber, a yielding connection between said member and said cam, including a tension .spring having a portion connectcd with .said member and adapted to be put under tension by the movement of said cam, thereby actuating said Switch with a .snap action.

21. An electrical switch comprising a fixed support, a pair of switch blades each 4pivotally connected with said support, a

reciprocating cam, said cam having oppositely inclined faces and having a push button at each end and arranged between said blades, a cross bar connecting said blades and a yielding connection including a tensaid cross bar, said spring surrounding said cam, and adapted to be put under tension by the movement of said cam thereby actuating said switch with a snap action.

22. An electrical switch /coinprising a fixed support, a pairV of-switch blades each pivotally connected with said support, a cross bar connecting said blades, a reciprocatinor cam, said cam having oppositely incline faces and having a push button at each end and arranged between -said blades and between the pivotal supports and the cross bar, and a yielding connection including a tension spring having a portion conneet-cd with said cross bar, said spring surrounding said cam, and adapted to be put under tension by' the movement of said cam thereby actuating said switch with a snap action.

Signed at the city of New York in the county of New York and State of New York this 19th day of Sepr. A. D. 1907.

CHARLES J. KLEIN.