US1220414A - Electric-switch mechanism. - Google Patents

Description

0..0. GORDON. 1

ELECTRIC SWITCH MECHANISM.

V v APPLICATION FILED MAY 13, I916. 1,220A1.

Patented Mar. 27,1917.

IN VE N TUE mechanism.

' has an opening 4 in each end.

llkiJ'ID 13. GGEDUN, OF CHIJAGO, ILLINGIS, ASSIGNOR T0 THE SZ'OST ELECTRIC Ii IANU- FACTURENG CQMPANY, OF TOLEDQ, OHIO, A CGRFORATIQN OF OHIO.

ELECTRIO-SWITGH TMECHAIIISIIK.

Application filed May 13, 191-5.

To 6:25 a-a iaom it may concern PM ii kn wn the: i, Dun: l (ionno'x, n citizen oi the il niieil i iiuies, nnil u resident of '(fhicnggo in tho county oi fooh niul l inic oi' iiiinois nvc in'enteo n certain new nlnl useful Elec'triwihviieh hl erininising {lllll i (lo hcr lly (leclnrc lho fivliowing to he i'ulh clear, and exact description oi the invention, such as wi l ennhie others slifillcil in ihc art to which it zip iericins to make :nnl nsc tho some. reference hoing had to ihc a company in drawing-s. and to the characters of relerr1 "e mrlzul thereon. which form :1 port of ixhis sprcilirniion.

This invention yelnl s to eleciric switches, and pni'tiiirulnrly to lhose. of ihc quick llHllU) and break type,

The object of myinvcntion is the provision of an improved eiectricnlswitching mechanism of the. class ilescrilwl. which is compact in form, simple and ronlpnrntively inexpensive in construction, nncl highly ellicient in opm-uiion. Other ohjects :nnl nilvantages of tho inveniion will he nppnrcnt from the following (lchiileil (lrscrlption thereof.

While the invention. in its hroinlcr aspect, is cupnhlo of embodiment in numerous forms, n prei crrcil mnhmlimcni thereof is illustrniril in the :i conipunying i lrnw'innsi in which-- Figure 1 is n shlc elex'niion oi u s\\'ii1 h enihodying my invention in upon position unil with tho inrlosing case therefor in se tion. Fig. 2 is :i plan view thercoi' with the top part of tho inc-losing case. reniorcil. Fig.5. 3 is a reduced section on the lino any: in Fig. 2, with the. circuit wires removed. Fig. 4 is n. i'ciluceil orlg'o view ol tho ruse inclosing the switch with the. circuit wires mulling: thorcin. Fig. 5 is no cnlnrgeil pcrspeclivc-view oi'i'he hriiiginf; or swiich inoniher of the switch Fig. 3 is :1 pcrspeci'ivc view of the thrust he 1- for the bridging ineinher. :nul i ig'. '1" is :i )(l'l$'l0(ili.'-it .viow oi -hlle. conl'rol inir cl thc switch.

Reflex-ring in tho ih'nwings. 'i and J ilesignntc what may he. termed tho lmsc or cup parts of a. case or holly incniher in which the switch niochanisrn composing; the invention is-ioczitccl, said parts prcfemhly being composed. of insulating material These cn'sc parts form an interior chamhcr 3 in which the switch n'icchnnism is (llSpUHWl and which It will be sum-mum Specification of Letters Za-Lent.

Serial No. 97,264.

understood. however. that my invent-ion is not limited to ihe. use of any particular form or type of a e.

Plate. are mounted in respeeciive rocusses 6, G in. the opposite walls oi: the. chain her 3 and each carries a binding screw 7 for attaching icrniinni wire to the plate. A. yieli'ling coninri'. finger (3, of Laliorm in the present inslnnce, projeiwts fron'i each plate :3 inlo tho chziniln'r I) and on eiecLi-a circuit is hriilgci'i across from one to the other of these conlnrt Zingcrs hy n hriilging or switch momher 9 whoi, in contact therewith.

The switch ineniher 9, in the present in stance. comprises two tmrollel side liars 10, 10 and the connectii'ig pieces 11 and 12. The ineniher 9 intended to have rocking movements in the chamber to piece the. fol-Wan} eiuls of its side bars l0, 1.0 into and out of contact with the contactfingers 8. 8, and for such purpose is provided at opposite shins thereof near its rear and with trunnion parts 13. 123. which, in the present instance, are mounted in rcccsses 1-4. 1% provided in the, rcspeclive side wells oi the chamber 3 ii the, top edge of tho lmsc pnrc 1 of the case. The, trunnions 13, in the prcsenf instance, are,

struckoutward from the upper edge p013 tions of the respective bars 10 and rounded on their bottom eilges to form suitable trunnion ports.

The ronneciing piece 11 of the bridging nienihor connccls lhc lower edges of the bars '10. if um] extends l'orwnrii lroln ihe rear enlls lherco'l to u poini. in advance. of the. rocking axis oi the switch member. but in spuceil relation to the. 'i orworil end thereof, as shown. 7 The row r cnri of the connecting piece .11 is preferably turned up, as shown at 11. The connecting piece 112 is disposed in upright position in advance of the rocking axis oi the. in'iilging), member, and, in thc presonl; insinnce, suhsi'nntinlly midway of the ends of tho switch nic-nilier. An opening! 15 is provided through the connecting piere 12 :Hltl has :1 spur l6 projecting therein from one si lc thereof in spuccil relation to and iniilwzrv of its top and bottom walls.

A control-her 17 projects through the clinnil er 3 between the two openings 4:, 1 thereof mnl carries a hczul or push-button 18 at each end for rcciprocatory movement in the respective. opening 4.. This bar QXtQYKiS throngzh the opening 15 in the switch member connecting-piece 12, and in width is sub stanti ally equal to the width of said opening and has one edge thereof of suitable depth to have free longitudinal movements between either of the spaces provided between the spur 16 and the top orbottom wall of the opening 15. The spur 16 is intended to coact with the adjacent edge of the bar 17 to prevent rocking movements of the bridg ing member until either one of a pair of recesses 19 has been moved into register therewith, the bridging member being then permitted to rock transversely of the bar 17 by reason of the spur 16 passing through the registering notch 19 in the bar.

The means employed for imparting quick rocking movementsto the bridging member, when released for such purpose by a movement of one of the notches 19 in the control part 17 into register with the spur 16, will gs. main 1 O" now be described. A thrust-bar 20 is carried by the bar 17 with its lower end projecting loosely through an openin 21 in said bar and bearing downward against the cross-piece 11 of the bridging member, which cross-piece may for convenience be termed the thrust plate of the bridging member.

The downward movement of the bar 20 through the opening 21 is limited by spurs 22 projecting transversely from said bar and coacting with the top side of the control bar 17; The upper end of the'bar 20 projects loosely into an opening 23 provided in the top portion of a frame-piece 23, which is mounted whthin the chamber 3. A coiled compression spring 25 encircles the bar 20 and has its respective ends thrust against the spurs 22 on the bar and the frame-piece 24, thereby normally urging a downward movement of the thrust-bar. A longitudinal shifting of the control-bar 17 will cause a movement of the lower end portion of the i thrust-bar 20 from one side to the other of the rocking axis of the switch member, and during this movement the lower end of the thrust bar slides up the inclined thrust-plate 11 or the bridging member, and is also moved upward with respect to the controla strip of bar metal which extends around a portion of the chamber 3' lengthwise thereof and has portions forming guides through which the control-bar 17 has reciprocatory movements. The parts of the frame-piece through which the control-bar projects also serve as stop means with which -the thrust-bar 20 causes it to move upward against the tension of the spring 25. When the control-bar 17 has moved a sufiicient distance to place the left hand notch 19 therein in register with the spur 16, the lower end of the thrust-bar 20 will have passed the rocking axis of the bridging member and will cause a quick downward rocking move ment of the switch member to place the forward ends of the bars 10 thereof into contact fingers 8, 8. When the switch member has rocked to this position the spur 16 will have moved through the registering notch 19 and to a point below the bar 17 so that upon a reverse movement of the control-bar 17 the spur 16 will coact with the under side of the bar 17 and prevent an upward rocking of the switch member until the lower end of the thrust-bar 20 has been moved back past the rocking axis of the switch member and the spur16 has moved into register with the other notch 19 in the control bar. It is thus evident that the reciprocatory movement of the control'bar 17 not only causes a release of the switch member to permit rocking movements of the switch member in first one direction and then the other at predetermined points in a movement of the control bar, but also shifts the lower end of the thrust bar 20 in first one direction and then the other past the rocking axis of the switch member, whereby the downward pressure exerted on said thrusthar by the spring 25 actuates the rocking movements of the switch member.

I wish it understood that my invention is not limited to any specific construction, arrangement or form of the parts, as it is capable of numerous modifications without departing from the spirit of the claims.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is

1. In an. electric switch, a bridging element mounted for rocking movements, a control member reciprocally movable transversely of the .axis of said element, said element and member having parts which coiiperate to prevent movementsof said element except when said member is at predetermined points intits reciproeatory moveof the rocking ments, and thrust means shiitabie with respect to said element by movements of said control member and operable to rock said element in one direction when the control member is at a predetermined point in one direction of movement thereof, and vice versa. r 2. In an electric switch, spaced contacts, a bridging element mounted for oscillatory circuit making and breaking movements relative to said contacts, a reciprocatory control member coacting with said element to prevent rocking movements thereof except when at predetermined points in its movements, and thrust means shiftable by said member with respect to said element and operable to actuate movements of said element in first one direction and then. the other when successively released for movement by said member.

3. In an. electric switch, spaced contacts," a bridging element mounted for rocking movements with respect to said contacts to make and break connection therewith, a control bar mounted for reciprocatory movements transversely of the rocking axis of said element, said element and bar having parts which coiiperate to lock the element against movement except when the bar is at different ii'demTiiifred'"poiiits in its movemcnt',-,and thrust means shiftable by movements of said bar and acting on said element transversely of the bar to effect a rocking movement of the. element first in one and then tlieptlier direction dignitycessively released i for suchmovem'ents.

4. In an electric switch, a bridging element mounted for rocking movements, a reciprocatory control bar movable transversely axis of said element, said bar eoiiperating with said element to prevent rocking movements thereof except when said baris at spacial predetI'lnilms iii its movement, oscillatory thrust means-in thrust contact at its swinging end with said element and shillable lengthwise of the element by movements of said bar to exert pressure on said element first at one side 1 and then the other of its :LXI.

In an electric switch, a' bridging element mounted for rocking movements and having a thrust plate extending lengthwise thereof in tangential relation to a circle struck flOlil thelrimkingaxisof said element,

reciprocally movablemeans coiiperaiing with said element to prevent rocking movements thereof except when the'mcans is at different ])l((llttllllllllll points in its movements, and

thrust means acting on the thrust plate of said element and shiftable lengthwise there- 60' of by movements of said control means, whereby an element rocking thrust is exerted on said plate first at one side andthen the other ofthe rocking axis of the element.

6. In an electric switch, a bridging element mounted for rocking movements and having a thrust receiving part extending "from one side to the other of its axis and disposed in tangential relation to a circle struck from such axis and also having a part provided with an opening with a spur projecting therein from one side wall of the opening, a control bar extending lengthwise of said element transversely of its axis and through said opening, said her having spaced notches which successively move into register with said spur when the bar is at different points in its movement, and thrust means acting against the thrust receiving part of said element and sliiftable from one side to the other of the element axis by movements of said her.

7. In an electric switch, abridging element mounted for rocking movements and having parts forming side bars, a thrust part and a part forming a guide opening, said side bars having trunnions projecting outwardly therefrom above-said thrust part, a reciprocatory control bar mounted for movements lengthwise of said element and through the guide opening thereof, said bar and element having parts which coact to prevent rocking movements of the element except when the bar is at different predetermined points in its movement, a thrust bar disposed transversely of said control bar and pivotally mounted at one end and having its other end projecting through a part of said control bar and in thrust contact with the thrust part of said element, said thrust bar being shiftable lengthwise ol said element and from one side to the other of its axis by movements of said con trol bar, and means acting'on said thrust bar to yieldingly force it into contact with saidelement, whereby rocking movements are imparted to the element first in one direction and then the other as the position of said thrust bar is shifted from one side to -the other of the element axis and the element is released for such movements by said control bar.

In testimony whereof, I have hereunto signed my name to this specification.

DAVID D.- GORDON.

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