US1000158A - Electric switch. - Google Patents

Description

W. E DOW. ELECTRIC SWITCH.

APPLICATION FILED AUG. 6, 1909.

Patented Aug. 8, 1911.

r Wt/DVTUH H5; i MLLABQEUUW with the accmnpenying drawi'm .l'1(3&l3l01l,'llli% letters on the rlitions which vary seem-cling to the peculie be locked securely sgeinsl; 'seciilei automobile engine.

emme Amalie-alien filed 6 To all whom ii viz-a3; coi'wsmi: I

Be it knewn that I,- l l IIILARD Dew, a citizen of the Unii'ed Slates and rep dent of Braint-ree, in the county of l'lm'follq ma State of Massachusetts, have invented an Improvement in Electric Switches, of which the following desei'ipiien, in eennecl mi is a speei- .mgs reprew senting like parts.

This invention relates is elecizric-switelies and. particularly to a switch for the circuits of an ignition system. In devices of this 5011; it is clesirable to provide for COI1IlfiC- lion anal operation uncler a' variety of con izu'ities 01 systems in which they are to he used. is

The ignitien'of e1 esi've gaselene e11 has cleveloved to 1901x113 WllGle vmcliiiens necessitate a correspondf of requirements and the :lurnl. a switch capable i use m such cl rent efys terns invelves a problem of censiilerehle difficulty. It is further desirable in many uses, such as in ruiltomebile or pewer kiwi, to have a switch capable of being .v'eselil l and positively Worked and so srmnge L ei'z-ltion after the systeni has been ini Lew ally put. out 0 f opemtion. This pzu'iicw lm'ly (lesimble in automobile use wheve a caiis often left unsflemlell Ollll To the end, therefore, (if prov V ple and efiective swiich iaivnlviiig the paints shove enumerated as (fiESlifilllEWlIlu havingvai'ious other features 21ml hill-'21 ."f-ages structure and use, I have devised my pres- 1 11 ihe speeiliestinn which the drawings which form a elescrihetl and shevrn my invehtiem Well illusil'f ciples i velved'therein. This is a s'wiich for the ignition hlecl, Fig; 2 a rear View of iihe hex with parts remevecl, Fig. 3 a census vertical? q "i a a sec-tine, and l plug. v

l a swii'eh box having a recess 2 in ifis rear face fertile pro'l'eefivc illounting and hens e2? ille pal-is. "ell hachecl ie the ve th s late reference to v 11' plate bet-01m. 0:: 1e recess Ab and mclisllykiispesed Wit are three eeniacis 5, 6 and 7 which are l 'l iii) "1' h a nut run down on 01th:: plate 41 is a threadswiieh arm 10 D 01f the switch arm at lts ogects ilurou h the botend Of the 5133111 10 wiih lhe holes 1 slzul anal also riveted 15 of the triple group Jere with a hole which box 1 and is provided ling. 2]. is a plug havporirion aclaptecl to engage dlfi of said bushing of the hole 5 El llih an enrl. 22 which, when is screwed, in will so prevent J alrom seating in the hole 15 as movement the arm 10 p0s- A ving enmlghof a recess to me switch center.

in remiss-ting: in T switch two general sysr 3S enl v' need. he censilereli. 'With a magneie ignition system, requiring an epen circuit sw ets "the magnets can be Wired to the ms 0'- anal the greimd wire 01 the starting hm cries and coil eennecced to the post in 'this system with the switch arm 10 center the magneto is grounded by the centset of the bliuife 13 and is renderecl inholes for the at the (lash or other.

Ell' plste' l ancl providi, Wniehis slotteci i0 permit its lateral mevezneill; 1n either cllrectlon lmm J shape split to ferm- Each of these blades heroin threegh which pioj eats i? en a leixf spring 18 WhlCll' I i 4% s detail of the unlocking CIT.

Q the pl operative by the fact of its being so grounded. /Vhen the handle is thrownto bring the bleile 1.3 over into the Contact 7 and the blade 1:2- over the contact- 6 the engine can he started on the loatt ries of the circuit from 7 While the magneto circuit connected at is covered by the point 12 and is, there tore, still grounded and inoperative. To stop the battery ignition the arm 10 is returned to center cutting out the battery circuit and. grounding the closed circuit magneto'tlirough the blade 13. To shift onto the magneto, still leaving out the batteries, the blade 12 is brought over in which position the circuit of the magneto is opened/at 6 and mode operative for the running ignition, I

With magneto systems requiring a, closed circuit to operate, the magneto connection is rustle st end the battery at 7' as before.

l fhen the switch is at center it is of course out oi contact and inoperative. "So start on batteries it thrown so thattlie blade 13 covers the oontect 7 then reversed to run on "'iegiieto-hy bringing the blade 12' over cc r not 5. It will be seen mormver that it. possible to connect the two systems as above inilicstcd t the same time and slsofthe battery and still be able in the three posit1o-..mg of the sw tch arm to select any s so or the three arid cut out-the others or at out all three from operation. lo'eech of those positions it will he seen the catch 7 finds a recess affording engagement sulfiient to locate the arm properly. At center or (lead position this location is made permanent by removing; the plug )1. The removal of the plug 21 in either system s ilie switch will; r can only operated after has been inserted.

Various modifimtirms in form and errungemeiit of ports and connections clovioosly be n'mrle within the limits of the l, zippc deal chums, Without departing from the spirit of my invention.

V /hst I therefore claim and desire to sccore by Letters Patent is:

'1. In a switch, a movable arm, a; support having; a recess in the path of said arm, a catch on snicl arm for engaging seicl recess and e removable plug for normally partially closing said recess to permit the movement of said arm While leaving a shallow recess sotiicicnt for indicating 2L position of the arm;

2. lo a switch a movable arm a support having a recess in the patlrof said arm, means on said arm for engaging said recess and a removable means for normally partially closing soicl recess to permit the movement of said arm While leaving a, shallow rcccss sullicient for indicating a position of the arm.

In a switch, e movable arm, o support having an opening therethrough and forming a recess in the path of said arm, means on said arm for engaging said recess and a removable means for normally partially closing said opening but leaving a shallow recess to indicate the position but permit the yielding disengagement of said arm.

4:- In a switch, a having an opening therethrough, an arm movably mounted on the inside of said box, the under eml of said opening forming a recess in the path of said arm, s yielding catch on said arm for engaging said recess and a removable plug insertible through said opening to partially close said recess leaving a shallow recess to indicate the position but permit the yielding cliseng agement of said cetch on said arm.

5. ll switch, comprisin a, movable contact maker carrying 21 yields le pin, a support therefor, a recess in said support. in a positioiito be entered hy said. pin to fixcxlly 'loclr said contact maker, and a plug cooperative with said recess to decrease the depth of said recess the parts losing so constructed that saiol in may then be disengaged there from by .atera'l impulse imparted to said contact maker.

6. In ai'switch of the character herein doscribecl, the combination of a supporting base, e segmental series of stationery con tact points arranged on said base, a movable switch lever pivoted on said base, and means for locking seizl lever in a dormant position the some comprising a bolt sliding in said base and engaging an orifice in said lever, means for yiel ingly forcing said bolt to its engagement, and means on shid base for guidiog a plug longitudinally to move said engaging means out of engagement with the switch lever. v

In testimony whereof, I have signed my name/to this specification, 1n the presence of two subscribing witnesses.

l v WILLARD-E. 110W. Witnesses:

Amos H. Dow, CAsLorL i NIX.

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