US1135199A - Electric switch. - Google Patents

Description

. e longitudinal Lenen E. J. resslefos r/iLWeUKEE, WrsGoNsr-e.

HAMMER Mss. so., or 'muws-onse, wisconsin CNSIN.

messes.

.implication fi'le Merch 24, 191).

Be it known that l, Aufs-sn E. l'. lli/Liens, :1V citizen of the United States. resioing at Milwaukee, in the county of Milwaukee und "tate of Wisconsin, have invented, new and useful Improvements in Electric Switches, of which the following is e full, clear, @oir sise, sind exact description, reference being had to the accompanying drawing, forming e part of this specification.

My invention relates to improvements in elect-ric switches end more particularly to Veccoinpenyieg; drawing, which einl3o-^lies one form or in'velfition as the seme lies been. Worked ont in practice. it should he understood, however, that inven ien is not limited 'tod the particule? struetuye. illustrailed, out is susceptible of various modifications.

lfn the accompanying drawing, Figure l is verlies?, sectional through e. lamp snely iis-fing one form of my switch mechanism 4:onzneol therein; Fig. 2 is e. transverse sectional View taken on line 2 2, Fig. l; and Figs 3,4 end 5 are siniiler views of the switch mechanism illustret ing the manner of operation thereof.

lWhile have shown switch mechanism applied te a lamp socket, it should be 'Linderstood that it may be used in various otherv relations. ,The lamp socket 6, which l have illustrated, is of e. conventional type, und, therefore, need not oedeserihecl. Within the socket 6 is an' insnletinghese formed in two parts, 7 and 8 suitably spaced to form e recess 9 for the reception. of the switch mechanism. Secure te the part 'i' of the insulating bese is ssupisorting plete l@ which mep' be corvenientlgY fermefl with lugs 1l tlreen adapted to he secured to the insulatby screws l2, se best illnszreted in pacification of Letters Eaten't.

in the Osupporting pl v enel with an up:

view-5 Serie-.l No. 553.3287.

The plete l0 has riveted, or eti wi seeuieel thereto, s

.tu-fi 13. upon l is@ f As illustrated. the in@ bei' .ier-ero e resilient contsct plete or finger l5. Tide contact plete l5 is adapted to he me veel of engagement with spring Cei suitably located upon :incl secured t the members the insnletins lo e, the Contact member enit or may lie used io liriciY simi .ir toitlie eoiitset 16 sector slinpeel member l l in eiiverging slots zuil e per-tion 20, which prefers l treinitf; 2l curved concentr'., pivot sind '13. The operrting member i' comprises o. rreine l extending lug` irren The lng Q3 preerebly formeel in tlie seetion bese und is eonnecied lsf? spring' Z5 to ang lv c spesi provided on the Hence, the lil member is previo pin adapter?, te work l i8 :nel li" of the sector shepecl l)er lr "lie lov-fer end of the pin Q7 is preferably surrounded by :in insulating eve onto which fitted :i suitable clip eti-sched to the cnil of e suitable operating ehein 30. Ylll'iiile l have illustrated the switch meelxenism :is

hein operetedfiiy e.y eliein, it should loe cir 1 i ciers-, it

escl thettlie operating meinhe" mig lie eetiiutecl by any other suitable Neuss for instance, e push button.

Tin eclclition to the pin 2T, l pro connections between the operatie and the movable contact menen. which l shell new describe. pen-l 'is arranges between the operating member and the ses ter shaped member le, seid 'lesivi being provicled et one enel with. e slot through which passes the pilsI 2? 5 .ezt its opposite end vith e lug heel; of s 'Se ermee-tes?. ley coil tension sparire-gue wie e lug 3? provided en "ilse opere 3 ,f

COPY

within the same to produce a morelcompact 5 structure. The pawl is further provided on opposite' sides. with laterally extending notched lugs 37 and 38 adapted, under the conditions hereinafter set forth, to respectively engage pins 39 -and 40 carried bythe sector vshaped member leon o posltefsides of and in alinement with the pivot stud 13. I shall now-describe the operation of the switch vmecl'ianismwit-h reference to Figs. 2,

3, 4 andl 5. .l For the purposes of this descripl tion, let it be assumed that the parts of the lswitch mechanism are in the positions illustrated, in Fig. 2,'jin-which the contact member-15.is out of. engagement with the contact member 16 and the -pin 27 of the operl atingsmembe'r in the slot 19 of the sector shaped-,znemlier 14. Under these conditionsv it will be.- noted that the pin 27, being disposedinthe slot 1 9, forms a locking means for maintainingthe switch mechanism in openv position, for, obviously, the contact carrying member 14 cannot .be moved until the pinV 27 iswithdrawn from the slot 19. Assumingnow, that the operating member Iis moved outwardly ortoward the right, the

30 -pin 27 will be drawn toward the'openend 'of the slot 19, while the pawl 32 willbe moved into'such a position that its Tug 38 will enga e the pin 4.0 on the contact member 14. he latter will occur, however, he-l f fore the pin 27 leaves the slot 19, thus caus- .ing the spring 35.to be tensioned, the pawl 32 in the meantime turning slightly on the pin 40 as its axis, as illustrated in Fi 3.

Also, as illustrated in Fig. 3, the pin2 of` 40 the operating member during th1s operation moves forwardly' in the slot 33 in the pawl 32 until said pin 27 is drawn out of the slot 19 in the operating member, where-V 'upon the tension of the spring 35 draws the pawl 32 outwardly, t ereby moving the con-A tact member 111 into he osition illustrated 'in Fig.'4. Of'course, t e shifting' of the vcontact member 14s will occur instantaneously upon therelase of the pin 27 from v the sl'ot 19, and, doe to the energy stored in the spring 35, said Contact member is moved with a snap action.v The parts will remain in the position shown in F1 4-until the operating member is release ,where- 35 iupon it will be immediately returned. to initial position by the spring 25. In moving to initial position, the operating member carries the pin 27- into the slot 18 ofthe member 14, thus locking said member in S0 closed position as illustrated in Fi 5. Also upon return of the operating mem er to initial positiomthe pawl 32 is released 'fromthe pin 40 and then centered by the spring 35 so that lupon the next operation its lug 37 5 5 will engage the pin 39 of the memberv 14:.

Here it should be noted that it is important that'thespring 35 be made to return the pawl to the same position after each opera."-j. tion and that the pins 39 and 40 be so located that each will be engaged by'the'7'0.

pawl 32 when the contact member 14 is at one ofA the limits of its movement. It is `further necessary that the parts be so pro- .portioned that when the pawl is turned on one of the pins 39 or 40. as a fulcrum, said 75 pawl will clear the other of said pins.`

The operation of the switch from closed to open position is similar to that previously described, and, therefore, requires no urc ther discussion. A

While my invention may be embodied in various other` forms, the particular form illustrated is advantageous in that itmaybe formed almost entirely of stampings, and, when assembled, may be said to be self` 85 contained. 1

Having thus described my inventiomwhat I desire to secure by Letters Patentisz- 1. In an electric switch, in combination, an oscillating contact member, a reciproca't-l `90 ing operating member therefor and a device bodily movable to directly engage said contact member on successive reciprocations of -to said operating member, and means carriedk by said operating member engaging said contact member during a partial movement of the former to hold the latter'against movement'until energy is stored in 4said energy storing means. i 3. In an electric switch, in combination, an oscillating contact member, a reciprocat-- ing operating member therefor, an operative connection between said members comprising a pawl'and a straight helical spring connecting said pawl to said operating member, l and means for effecting an engagement-ot` said pawl 'with said contact member to oscillate the latter in opposite directions upon successive reciprocations of said operating member in the samedirection. 1 t 4f. VIn an electric switch, incombi'nation, an oscillating contact member, areciprocating operating member ltherefor,.f.an operative connection between saidf members cornprising a pawl. and a singlelleli'cal spring connecting said pawl tos'aid operatingI l, member, means for e'ectin'g an engagement mis of said pawl Wit said contact member upon opposite sides of the pivot .of the latter to oscillate the in opposite directions upon successive reciprocations of said operating member in the same direction, and means carried by said operating member to hold said contact member against movement during a predetermined initial movement of the former to insure a snap movement of the latter .during tlie influence of said pavvlA 5, In an electric switch, in combination, an oscillating Contact member, a reciprocating operating member therefor, a pasvi having a pivotal lost motion connection with said operating member, spring connecting said paivl to said operating member, means for alternately eiieeting an engagement of said pawl with said contact member on opposite sides or the pivoto the latter to oscillate the same in opposite directions upon successive reciprocations of said operating member in the same direction, and means holding:r said contact member against movement until said spring has been tensionecl to impart a snap movement to said Contact member.

6. ln an electric switch, in combination; an oscillating,r Contact member, a. reciprocating operating member, a paul associated with said operating member to alternately engage parts of said contact member on opposite sides of its pivot upon successive re ciprocations of said operating member in the saine direction, a single spring connecting said operating member andsaid pawl to adjust tlie latter after eacli operation and v s in i ling said soringI and panl to imi.. ft a s .ip action to said Contact member. 7. ln an electric switch, in combination, an oscillatory Contact member, a reciprocatory operating member, operative connecting means comprisingr a device having a lost motion connection with said contact meniber and a spring connecting said device and said operating member for causing oscillation ot' said contact member in alternatelj)T opposite directions upon successive move-v ments of said operating member in one direction, and a singlespring for restoring all parts to operative position after escl-i actuation of said contact member.

8. ln an electric switch, in combination, an oscillator;v contact member, a reciprocatory operating member, operative connecting' means between the same, comprising a paul baring' a lost motion connection With said Contact member and a springl connecting said paal and said operating member for effecting a snap oscillation of said contact member in allernatelv opposite directions upon successive movements ot said operating member in one direction, and a spring for restoring' all parts to proper positions after eacli actuation of said vContact member, eacli of said springs comprising a.

and being in the direction helix having s straight-line axis expansible, when tensioned, of its axis.

9. ln an electric switch, in combinatioma pivote'cl Contact member, having radially disn posed communicating slots therein, a reciprocating operating member having a portion Working in the slots of said Contact member to lock said Contact member in its extreme positions upon reciprocation of said operat` ing member in one direction and to hold saicl contact member against movement during a predetermined degree' o movement .of said operating member in the opposite direction, a pavvl on said operating member lieving a -pivoted and lost motion connection therewith, projections carried by said con tact member on opposite sides of its pivot to be alteri'iatelyY engaged by seid pawl upon successive reciprocation of said operating member in the same direction and a helical spring connecting tberee end of said pawl to said operating member to canse said pani to engage one or tlie other of the projections on said contact member and to have energy stored therein dering operation oi said operating member to impart a quick movement to said contact member when released by said operating member.

lt), in an electric switch, in combina ion, an oscillating contact member, operating means therefor including a movable meinber one of said members having two spaced converging slots and a communicating slot connectingl tlie same, a lugi associated with saifi operating means extending tirougli saifl slotted member and normally held within one or" said converging slots, said slotted member and saicl lug being relatively movable and means for causing said lng to Work 'from one of said convergine slots through said communicating slot into the other of said converging slots upon succes,- sive operationv in the same direction of said operating means oscillate said contact -member in opposite directions.

ll. lrn an electric sivitcli, in combination, an oscillating contact member. operating means therefor including a movable member, one of said me obers having two spaced converging slots and communicating slot connestingT the same, a lug associated with said operating inc-ans and extending` through sail slotted member. and a spring to normally liolrl said lng .i'itliin one of said converging slots a 'ay from said communicating slot, said slotted member and said lug being relatively movable. means for causingr said lug to Work from one ol' said converging slots tiircugli said communicating slot into the other oit converging slots upon successive operation in tbe same direction of said operating means to operate 'said contact member to alternateiy open and :closed position.

' 122,.- In an electric switch, in combination, an oscillating Contact member," operating means therefor including a movable mem ber, one vof said members having two spaced 5 converging slots and a communicating slot connecting the same, a lug associated with said operating means and extending through sai!L slotted member, a spring to normally t hold said lugwithin'one lof saidl converging 1931 slots away trom said communicating slot, 5 'igllslotted member and said lug being relaf A'1:i ,'xvable, and means for causing said ywork roms ;one of said converging slciashrough saideammunicating slot into 3.5 the other of said congerging slots upon successive operation in the same directionV of said operating means to operate 'said contact member to alternately open and closed' position and means to move said slotted member with a snap action when said lug enters said communicating slot from either A'V\7itnesses:

FRANK I-I. HUBBARD, GEO. HAYNES.

ALFRED El J. MAAGE. y

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