US1595918A

US1595918A - Centrifugal switch

Info

Publication number: US1595918A
Authority: US
Publication date: 1926-08-10
Anticipated expiration: 1943-08-10

Description

BEST AVAILABLE Col` Aug. 10 1926. 1,595,918

W. W. OZON CENTRIFUGAL SWITCH Filed July l5, 1924 alla Ill/111111111111111. 'Ill/111111 Llt) Patented Aug. 10, 1926.

UNITED STATES BEST AT1/AMABLE COPY PATENT OFFICE.

CENTRIFUGAL SWITCH.

Application led July 15,

This invention relates to a centrifugal switch and has for its object to provide a mechanism which may be mounted at any suitable location upon a motor vehicle, being interposed in and forming a part of the electric circuit between a battery carried by said motor vehicle and the engine thereof, and being operatively connected to and driven by one of the front wheels of said vehicle, or any suitable portion of the transn'iission mechanism in such a manner that ifv the vehicle attains a predetermined speed, the electric circuit hereinbefore mentioned will be broken, thereby preventingthe spark plugs of the engine from functioning and causing a reduction` of the speed of the engine.

The invention consists of a centrifugal switch, as set forth in the following specitication, and particularly as pointed out in the claims thereof. v

Referring to the drawings Figure 1 represents a side elevation of a switch embodying my invention, said switch being illustrated mounted upon a rod forming a part of the steering` mechanism for the vehicle and being operatively connected to one of the front wheels of said vehicle. v

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1.

Fig. 3 is a diagrammatic view illustrating the position of the switchin relation to the engine andstorage battery of the motor vehicle.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, a represents a main casing for a switch mechanism, said casing embodying the-rein a top member 5, a bottom member andaside member 7, preferably cylindrical in form, said members all being securely held together by a plurality of tie rods 8. The main'casing 4 has a chamber 9 provided therein in which a switch mechanism 10 is located, the latf ter being mounted upon a vertical shaft 11, in turn mounted to rotate in the top and

bottom members

5 and 6 respectively of said casing. The lower end of the shaft 11 projects into a chamber 12 provided in an auxiliary casing 13, the latter being secured in any suitable manner to the under surface of the bottom member 6 of the main casing l, and said shaft 11 has a bevel gear 1924. serial No. 726,121.

14 fast to the lower end thereof, said bevel gear meshing with and being driven by a bevel gear 15 fast to a horizontal shaft 16 mounted to rotate in the auxiliary casing 13. The shaft 16 has a pinion 17 preferably constructed of insulating material, fast thereto which meshes with and is driven by a gear 1S which is fast to and rotates with a front wheel 19 of the motor vehicle.

The device, as a whole, is mounted upon an arm 2O constituting a portion of the steering mechanism of the vehicle, being clamped to said arm by a suitable clamping member 21 which is secured to the under surface of the auxiliaryv casing 13, and said auxiliary casing 13 and clamping member 21 are insulated from the arm 20 by a suitable insulating member 22 which is interposed therebetween. I

Locatedwithin the chamber 9` uponthe shaft 11, and preferably having screwr threaded engagement,l with said shaft is cylindrical electriccontact member 23, and also located, -upon said shaft 12 directly above the Contact member 23 is acylindrical insulating member 24 ofthe sa'me di'- ameter as said contact member, and said insulating member 24 is held tightly clamped against the upper extremity of said contact inemberby a suitable nut 25.f

The switch mechanism 10 embodies there# in a member 26 which is mounted to slide .vertically upon the contactmember 23, land also upon the insulating member 24, the normal position offsa'id member 26, however, being uponthecont'act member 23 approximately as illustrated in Fig. The switch mechanism 10 also embodies therein a pair o f arms 27, the lower ends of which are pivo'tally secured at 23l to the member 26, and the'upper ends of said. arms being pivotally connected. at 29 to a pair of weighted arms 30the latter being, in turn, pivotally connected at 31 at their upper ends to a collar 32 constructed of insulating material, and fast to the. vertical shaft 11. x

A storage battery. 33, or other suitable source of electric supply carried by a motor vehicle, is connected by a wire 34; with a binding post 35 which is mounted in the bottom member 6 of the main casing 4, said binding post being insulated from said bottom member. An arm 36 is loosely mounted upon the movable member 26 and is preice vented from rotating in unison with said member 26 by a rod 37 which projects downwardly therefrom and through an insulating member also mounted in the bottom member 6 of the casing 4. A

The arm 36 is electrically connected to the binding post by a suitable ieXi'ble-eleetric conducting .member 38. The arm 36 is still further electricall)y connect-ed with the binding poet b v a thin plate 3S) which is fast to the binding post 3.5, said plate ha-ving an opening torn'ied therein through which the rod Il? 'Slides ae 'the member Q6 is raised and lowered bythe switch mechanism. A binding post 4() is mounted in the top member ot' the main casing Ll, and said binding post is connected by a wire 4l to an' 'engine 42 o'lz the motor vehicle in the usual wcl'l known manner.

The general operation ot the device hereinbefoi'e vdescribed is as follows Assnming that'th'e'electriccontact 'member 93 and the insulating member 124 have 'been lloraterl at a' predetermined height n'it'liin'themain casing LL in orderthatthe device will operate to break the electric circuit therethrough when the motor vehicle 'attains a predetermined speed, the vehicle shaft l1 'will 'be rotated continuously as li'igas tlre"\"el1`icle'is in'mo'- tion through 'its connection with the front ivh'ee'l' of 'said vehicle". T he s'vitcli mechl ani'sm l0 operating in the 'usual"Welllrnown `manner will act to lift'tl'ie-member Q6 vertl'ifca'l'ly 'upon 'the contact member QS'asthe vehiclespeedsirp, and Eit' 't'he'speed of 'said vehicle 'becomes too great, :the 'member 26 QWiil' 'be lifted entirely out of 'engagement with the -contact member 'QS'and Venti-rely into engagement with 'theansdlating 'mem'- ber 24, thereby'brealiing:the electric vcircuit w'hic'h enters the device A'at the binding xpost Qiand passestherefrom'through 'the -wire 38, arm 36, 'contact 'member 23,'shaft il, top member 5, bintlin'gpost and outwardly therefrom through thew'irefll.v4

without' departing from invention.

I claim-:-

l. A centrifugal switch comprising, in combination, -arotatable member, an electric Contact member fast to said rotatable member and adjustable longitudinally thereof, an insulating member also mounted upon eaifd rotary member in alignment with said eect-ric contact member and also adjustable longitudinally upon saiid rotatable member, 'a mofvableeontact-membernormally mounted upon said first-'mentioned Contact member, 'and contrifugall-y actuated means fast to said i-otatable 'member and operatively connected to said movable contact member and -adapted to 'move the latter longitudinally upon and 'ont Aof engagement with said inist-mentioned contact member and into engagement with said insulating member.

Av centrifugal fswit'ch .-eomprising, in combiria-tion, a rotary' sha't; 'ani electric conL tact member hav-ing =screw1threaded engagement with said' -shaft,'an'insuiating member n-leo having V'screwthr'e'ade'd engagement witlr'said shaftnnd abutting against said contact member, means tolrotatesa-id shaft, 'sr-Ln'iovable 'contact member s'lidbly mounted upon sai'd' 'firstl-n1eitioned 'cnt'act11mem`ber', and eemzrugakly 'actuated means linstr-to said shaft and operatiyelyehneotedto said movable Contact member-'and 'adaptedi to motie l'the' latter -iin opposite' directions: i'nto and out' ofi-engagement av'thsaid" -rst-'mentioetl contact; lmeniber-t'o'lmke lordbreak? an elect'rioeircit' pasiiig theI-fethrcmgggl'i. 7 '3i v-eentrfmgal: .switch 'cmifprisiing, in combination; "a Leasing, f shaft rotatably mounted in said casingLa cylindrical electhe spirit of this -ni'e leontarlmeinber fast im sani ahnte, a

cylindrical insulating member iilso'fa'stto said :slaft and aligning-With-{said contact member, '-'mens 'to 'Jellam saidf-nsiilating member and I' contact member'l upon- A"said shaft, a movable contact member-inormall-y located fopen; saitlf I Hirstlinention'ez'll Contact m'eniber,` and 'centrifugally actnated-imeans -fa's'tV to saidwshat land'.zoperatively connected ito said lvmovable 'Contact member` and adapted lto move the .latter into .and out Lof engagement with xeither said' ifirstfmentioned contact mrember lor 'said insulating -member to -makelor =br`eakban electric :circuit .passing throughfsaid'shalft; 'l j Y In 'testimony -whereof y'I'have hereunto set my hand? l x 'y A Wanne/renew. io'zoN.;