US987241A - Snap-switch. - Google Patents

Description

G. J: KLEIN.

SNAP SWITCH. APPLICATION FILED I'EB.20, 1908. RENEWED OCT. 24, 1910.

Patented Mar. 21, 1911.

Fig. 8 .1

Fig 31 W/T/VESSES UNITED STATES. PATENT onrion.

CHARLES JULIUS KLEIN, OF NEW YORK, N. Y.

SNAP-SWITCH.

- Application filed February 20, 1908, Serial No. 416,933.

To all whom 'it may concern:

Be it known that I, CHARLES 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 to switches adapted for use with electrical circuits.

The object of this invention is to )rovide' ant or socket switch, which is adapted for use in the usual manner to open and close the circuit by simply pressing a button.

In the drawings like parts have been given similar reference numbers in the several views.

Figure l is a sectional side elevation of a simple form of switch in its open position. lfig'. Q is a. side elevation of one-half of the switch shown in Fig. 1. Fig. 3 is a side elevation of the operative parts of the switch shown in Fig. 1 in closed position. Fig. el is a similar view to Fig. 3, showing a modification of the operating mechanism.

At 1 and "2 are shown the two half-sections of a casing, preferably of insulating material, such as porcelain, in which the switch proper may be mounted. These halfsections are secured together by any suitable means and may be separated to permit of the assembling of the switch parts and also for making the wire. connections.

At 3 is shown a movable member or cam, 1.)refera bly of insulating material, mounted in the casing l and 2- so that the same may be moved back and forth by the alternate pressure of the finger on one end or the other of this member which projects through the casing as shown. The central portion of this cam or movable member 3 is so formed as to provide oppositely inclined surfaces on either side of a line transverse to the axis readily turned on the member 3.

Specification of Letters Patent. Patented :Mar, 21, 1911.

Renewed October 24, 1910. Serial No. 588,785.

thereof. These surfaces, for the convenience of manufacture, are preferably conical in form, as shown at 4 and 5, and may be Stops which may take the form of stop rings 30, 31 are secured to the member 3 and engage the casing to limit the movementof the cam. They form stops independent ofqthe cam surfaces.

A switch blade 6 is carried upon the movable member 3 and alternately rides upon the conical portions 4 and 5 as the member 3 is moved, in the manner hereinafter de scribed. Line terminals 7 and 8 are so positioned as to be engaged by the switch blade 6 when in its closed position and so close the circuit 'therethrough.

A resilient member 9 in the form of a coil spring surrounds the tapered portions 4 and 5 of the movable member This resilient member forms the second movable member of the combination. The casing is so formed that the lower portion of this spring is substantially held stationary with relation to the movable member 3, but another portion of the spring is caused to move at an accelerated speed with relation to said cam. The ends of this coiled spring are attached to a pin 10 which is carried at one end of a third movable member 11, which constitutes a means for giving an impact to the switch blade. This member 11 is positioned in a triangular shaped recess in the switch blade (5 in such a manner as to have a bodily movement with relation to the switch blade and transverse to the axis thereof, theuppcr end thereof being swung forward and back as the device is operated.

Assuming the parts to stand in the open position, as shown in Fig. 1, the slidmg member 3 being. pushed to the right shifts the point upon which the switch blade 6 rests causing the same andthe spring 9 to ride over the high central portion of the member 3 and upon passing this point to move quickly down upon. the opposite inclined portion 4. As this takes place the movement of the sprin 9 causes the member 11 tobe swung quickly to the opposite side of the recess in the blade 6 and the impact or blow produced accelerates the movement of the switch blade 6 and also insures the same being positively and quickly brought into engagement with the line terminals 7 and 8, thus insuring a more perfect contact and closing of the circuit.

To open the switch the sliding member 3 is moved in the opposite direction and the inclined portions 4- and 5 cause a similar movement of the switch blade and associated parts in the reverse direction. The member 11 is swung in the opposite direction by this movement and the impact or blow caused by the same striking the opposite side of the recess in the blade 6 facilitates the releasing of the same from its engagement with the line terminals 7 and 8 and also accelerates the movement thereof and assists in producing the quick breaking oil-the circuit which is one of the desired results in switches of this nature.

In the modification shown in Fig. 4: the operation of the several parts is similar to that just described. The coiled spring 9 is attached to a pin 12 which is positioned in a slot 13 in the switch blade 6. The mo ement of the sliding member 3 causes the pin 12 to be moved with relation tothe switch blade, transversely to its axis and quickly I from one end to the other of the slot 13, ac-

celerating and assisting the operation of the device in producing the quicltopening and closing of the circuit. The operation of this form of device is similar to that just described and will be readily understood without further explanation.

It will be understood that the movementof the m mber 3 may be accomplished in various ways depending upon the use to, which the device is to be put.

It will benoted that the straight line movement of the operating member 3 is transformed into a swinging movement of a third member about a pivot and that the pivotal point at which the third member is supported is also moved as the switch blade is caused to operate. This produces the accelerated swinging movement which has many advantages for devices of this nature.

It will be 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 the same. 1t is further and particularly to be understood that I do not confine myself to any specific details of construction.

As many changes could be made in the above construction and many apparently widely difierent embodiments of my invention designed without departing from the scope. there f, I intend that all matter mm- '1 ained in the above description or shown in the accompanying drawings shall be interprettd as illustrative merely of an operative embodiment of my invention and not in a limiting sense.

Whit 1' claim is:

l. in an electric switch. the combination of lin B terminals, a switch blade arranged to open or close the circuit tln'ougl'i said terminals, a cam, a resilient tension spring, having a portion engaging said ca m, said engaging portion of said spring being bodily movable with relation to said cam, said cam and spring being constructed and arranged so as to produce an accelerated movement between them, and means for giving an im-. pact to said. switch blade, said means being connected to said spring and movable transversely to the axis of said switch blade.

2. In an electric switch, the combination of line terminals, aswitch blade arran to open or close the circuit through sai terminals, a cam, a spring having a portion engaging said cam and arranged to move at anaccclerated speed by the movement of said cam, and means for giving an impact to said switch blade, said means being connected to said spring and movable transversely to the axis of said switch blade.

3. In an electric switch, the combination of line'terminals, a switch blade arranged to open or close the circuit through said terminals, a movable cam having oppositely inclined surfaces on either side of a, line transverse to the axis thereof, a spring having a portion engaging said cam and arranged to move at an accelerated speed by the movement of said cam andmeans for giving an impact to said switch'bladc, said means being connected to said spring'and movable transversely to the axis of said switch blade;

4. [u an electric switch; the combination of line. terminals, a switch blade arranged to open or close the circuit through said terminals, a cam having oppositely inclined conical surfaces on either side of a line trans verse to the axis thereof, a spring engaging said cam and arranged to move at an accelerated speed by the movement of said cam and means for giving an impact to said switch blade, said means being connected to said spring and movable transversely to the axis of said switch blade.

5. In an electric switch, the combination of line terminals, a switch blade arranged to open and close the circuit through said terminals, a cam, a spring engaging said (am, a movable arm carried by said switch blade and arranged to give an impact to said blade, said arm being connected to said spring.

6. In an electric. switch, the combination of line terminals, a switch blade arranged to open orclose the circuit through said terminals, a cam having oppositely inclined tapering portions, said switchblade being carried upon said tapering portions, a spring engaging said inclined portions and connected to a. movable arm, said arm being carried by said switch blade and-moving transversely to the axis thereof when said cam is moved, whereby the switch blade is l caused to move into and out of engagement with the line terminals.

03 MT and A T in an siesta-i switch, the cmnbir 01'? line terminal, av sw tch lads to open or close the CHTAIii'iZ termimfis, a cam having oppssi surfaces (1 either side Of a line transvmse t0 151 3 axis thereof a spring having movabla pofsien engaging sai cam m a, J

lma

1 51 portion, an. lmpuct member connec' se' spring and art-singed to strike 5n b.

10. blade.

8. electric switch H ceinwizl of line termi: 21s, a switch 1' ude a open 01 7 close the circuit chmugh szm terminals, a cam having oppesitely i 15 surfaces, spring having a purtion min to be moved by the movement of the ca" by said blade and. arrmiged go pact to saifi switch blade when firm- 1 cam moved.

9. In an electric; swi'tc of line terminals, 1% switch I 0 011 or clo v the circuita inais a cam having oppss 1 porticns, sud Ma u I alternately SW m9 said gavel-e81 1201" moved, an impact membe switch Mada ama arming past :0 said blade by :1v mcvemeni v to the axis thereof, a spring cor k said impact member, saia portion engagin said c2"; tion.

In an else-iris swizcig in com helical spring, a movable mun gagged ti'lc/reby said 0 iapering face which wmggaament with i? 1, a swim Mam clrcufaf fill-m4 mid 5px .4

11 v circui between said 1b.. rin g squid ea no and with a 32; 11g 10. nfiens 0f iber ca a Helifia]. gagged there conical perm engagemen fi h il al s3 1g circun .eii by 1 miapisa minais, a mm, :1 Fvpring cngggzzgilm' mid mm coz'lllectiilg said. spring with said switch Signal at he city of New York in the 41L moans county of New York and. State of New York 3, portion of said spring being a this; Feb. 1 1, 1908.

CHARLES JULIUS KLEIN. Witnesses H. Bzssm v. fmmmb YAAGE.

blade, the parts being constructed and m.- ranged so that a. mm'ement of the 0am produces my accelemfod nwvement of Said switch blade

Images