US1031312A - Circuit-make-and-break device. - Google Patents

Description

A. A. ZIEGLER.

CIRCUIT MAKE AND BREAK DEVICE.

APPLICATION FILED FEBJB, 1910. .1 ,03 1 ,3 1 2, I Patented July 2, 1912.

2 SHEETS-SHEET 1.

A. A. ZIEGLER.

0x11011113 MAKE AND BREAK DEVICE.

Patented July 2, 1912.

2 SHEETS-SHEET 2 APPLICATION FILED PEBJB, 1910.

1720672 ior: @Zd 4%,A7

h/fiEm, W- W' UNITED STATES PATENT o e .AIZHFBIEHD A" ZIEGLEB, OF BOSTON, MASSACHUSETTS, ASSIGNOR T UNITED ELECTRIC APPARATUS COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- "JHUSETTS.

' 8peciflcation oi! Iietters Patent.

I' CIRGUIT-MAKFlrAhTb-BREAK DEVICE.

Patented July2, 1912.

' Application filed February i8, 7 1910. Serial No. 544,630.

Toall whomit may concern: Be it known that I, ALFRED A. Zmomn, of Boston, county of .Suilt'olk, State of Massachusetts, have invented an Improve; -meiit'in'Gircuit-Make-and Break Devices, of which thefollowin is a specification. 1 This invention re ates to circuit-operating; keys, or 'electni'cal devices for making an 1 breaking circuits,'-adapted'ito be' used alone ..0'-or in connection 'with'other electrical-de- It has for its object to construct a very strong, substantial and durable device having means for electrically connecting the parts thereof, whereby the employment of electric wires is obviated; and having im- 'proved'forms oielectric-contacts, which are notliable toget out'of' order. Such a device is well suited to railway signaling work, -'w'liere it is apt ta'be roughly used and given. -butlittle'f-attenti'on.

' Figure Tis a front- View of .a circuitoperating key embodying this"invention. Fig. 2 is a transverse section of'the same zsitaken on the dotted line 2-2, Fig. 1. Fig. 3 is. a longitudinal vertical section of the same, taken on the dotted line 33, Fig. 1. Fig. 4 is a front view of the under contactmemher. Fig. 5 is alongitudinal vertical section of the same taken on the dotted line 5" 5,'Fi 4; Figs. 6 and'7 are front views of modi ed forms of circuit-operating'keys embodying this invention. Fig. 8 is a side view of the circuit-operating key shown in:

. Fig. 7. Figs. 9, 10, 11 and :12 aredetails to be referred to.

a represents the base-plate, and b the movable leverof the key or contact-member, 'hawihg' at'its outer end a knob 12', or pro- 4o uidedi with. any; other; means by which it may'beldepressed. Said key-member b may be made'a s a" flat-plate or' bar, preferably spring-acting, and connected at its inner end -to the base-plate a. As's'hown in Fig. 1 it is' attached to the base-plate by several pins -b which are driven into' the bas'e plate, and also by the attachingrmeans for a" bindin i. posts-of improved construction. The 19' .ingwpost com rises a bodyc having a scre'w i 5o threaded eon r-hole through'it, see-Fig. 3;

contact-members, one or' both of which may and having an ear 0' extended 'latera'lly from ,it, and said body and ear are formed with a continuous flat surface adapting them to rest onthe key-member b. The ear is attached to the key-member, as by a screw 0. A screw 0 extends through alined holes in the-base-plate a and key-member b and body a, and projects a short distance above said body,' and on the projectingendof said screw'a' binding-nut atherein shown 'as a thumb-nut, is turned, which is arrangedto engage 'thetop of the body a, or-'a wire ar-- ranged between them,-aud also on said r0- ectmg 'end'a check-nut c is turned to old the binding-nut securely in lace. The end of the check-nut may be shtted so that it may be pinched together to tightly grip the screw. When the parts of the binding-post,

thus described, are assembled, rigidly connected with the base-plate, the key-member Ii is'additionally secured to the'baselate, and as the body '0 of said' post'is: a con actor for the-current a very efficient electrical connection with said key-member is made, particularly as the ear 0 is also a conductor for the current and also engages said keymembei'. f

In lieu of arranging the bindinIg-post c on the key-member, as. shown in 1, a' body-plate e, with or without an ear'e may be arranged on the key-member, see Figs. 6 and 7, which is secured in place thereonby screwsv e, e, extendingithrou'gh the plate and key-member and into the base-plate, andsaid 'plate may be. formed-integrall with I the body of 'a biriding'po'st e, byra' ink-e. Hence I do not desire tolimit my invention to employing the attaching-screw 0 of a binding-post to additionally secure'the' keymember to the base-plate, as said bindingpost may be otherwise disposed and electrically connected with the key-member.

The'outer'end portion of the key'anember occupies a position between two stationary be connected with bindingosts. The ap-- per contact-member comprises a contact-.- point cl, formed on the'end of a shrewd,

-which extends through a' hole in abraiclt'et d, and a: check-nut d may be placed on: said a binding-post by the binding rpost integrally connected with" 'a binding-post for p which a; screw passes to assist in holding the bracket.

' gage the top ofthe'body or a wlre arranged between them, anc 1"also may receive upon it t a check-nut 1 By providing supports for receives upon it a adapted to engage the reason that contactmember comprises a'contact-point f,

, "portinglate n e -se Ib'iy; 'al s'crew". f extending upthrough -thefbase-plate and into a threaded socket in the under s ide of sa'i'd supporting-plate, or by J 'other s'uitable 'means.- -Said' supporting-fv plate-f, integrally connectedwith the. body f of a binding-post byfia link f The body 1" has ascreW-threaded center-hole "through it, and the base-plate and-body and projects :a-short section of the key-member or plate-isshown,

's'nj'u gly fit the hole and ofalength to pro- .j'ect "from both sides of the key-member. .Said pin is wise pressure by"su-itable dies,

firnily fixed in theh'cle and its projecting g 1,os1,312 7 ends somewhat enlarged, thereby inseparably ing gagement with other contacts.

Referring screw 1., or other member designed to have a contact-point at its where, has a hole drilled in'it' to receive a pin,, and a pin which substantially fits the hole is j d'rive'n into the hole-and: projects therefrom a shortdis'tance, and said pin is screw. The bracket (1 consists of an arm rising from a foot and curved to extend over the top of the movable key-member, and its foot rests upon the baseplate, a,v and is rigidly secured thereto by a screw d, or other suitable rneans; i; In 1' Fig; 1 said bracket d is integrally connected with the body, (1 90fa link 01". The body 41 of has a screw threaded cens ter-holethrough itfor, a screw d, which ex tcnds through the base-plate and body, and projects a short distance above the .body and binding-nut 03 which is the vJtop of the body,or a wire arranged between them, and also may receive upon it a check-nutd".

Referring to Fig. 6, the bracket-d is not able dies, whereby itis firmly fixed in position in v,the somewhat enlarged, thereby i'nseparably connecting it with the screw or other member and forming a large fiat surface at the end for the engagement of another contact. Referring to Figs .;7 and 8, the under contact-member, is; not connected with abindhe contact "borneby itm'erely serves as aback-stop for-the keymember; but said bracket' hja's' an ear d extended vlaterall'yftroln 'its foot, through stop for thekey -member. r a t While the several component parts of the circuit-operating key herein shown lwhen assemble d,;form a very durable device, well suitedtormany purposes, yetfparts' o'f lthe devicemay be used connection with other electric devices to goodadvantage, A a The contact-pin. ha jshown particularl'y in Figs. 9, 10,,11=and .12, securedin place by enlarging its body by endwise pressure upon it, ,forms the subject-matter. of a divisional applicatibm, #693,120, filed April 25," 1912.

' Having thus, described my'inven'tion, what I claimv as new and de sireltolsecure- Letters Patent. is: 'I

; 1. In .a circuit make-andbreak device, a base-plate, a movable key-member attached thereto; a contact-pointarran'ged below said key-member, asupporting-plate socketed to receive said cont'act-pointand having its under sidea screw-threaded socket, a screw extending through the-base plat'e which enters said screw t readed socket to thereby connect the supporting-plate with the baseplate, a binding-post secured to the'baseplate having a. body and a link integrally connecting said supporting plate and body, substantially as described.

2. In a" circuit nake-fand breal: device, a base-plate, a resilient key-member attached atone end thereto, a bracket.{ extended over said key-member having afoot resting on the base-plate, a contact screw extended through the forward. extremity of said bracket above the keymiember adapted to be engaged bysaid key membena screw extended through'the foot ofjsajid bracket into the base-plate, a binding-post having a body arranged .on said base-plate, anattachingscrew for said binding-post connected with the base-plate, a link extending from the body of said binding-post to the foot or said bracket which is formed integrally there- 'Beferring'to Figsi 1, 2 3116,61, the lower. '31s as a smallpin set in'a, socket in a supf, which rests upon the base-' which-i rigidly secured thereto a screwf"?- extends through distance abovethe body and receives upon it abinding-nutf which is adapted to en-.

the stationary contact-members and inte-. grally 'connecting them with the-bindingposts, circuit-wires are not required to make The key-mem-- ducting material, is driven into and through Figs; 9 and I0, ,whereina a contact-pin b composed of platinum or same equivalent metal of high electrical con ductivity,'isf driven through the hole'in the key-member, and-said pin is of'a size to then subjected to severe endwhereby it is to Figs' ll and .12, a contact-' extremity or elsethen subjected to end-wiseipressure by suithole and its projecting end.

ing -pbst, and ,thereforefmerelyserves as a connecting it with the plate and formlarge .flat surfaces at its ends for envwith whereby an integrally formed member name to this specification, in the presence of is produced which is attached to the: basetwo subscribing witnesses.

plate at both of its ends and bears a contact-member at one end end has a, connec'-' ALFRED ZI-EGLER' 5 tion for a circuit-wire at the other end, sub Witnesses: stantia-lly as described. B. J. Nome,

' In testimony whereof, I have signed my H. B. DAvm.

' copies this patent niay be obtained for five cents each, by addressing the "Commissioner of Patents,

' Washington,-D. 0.

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