US2000648A - Electric switch mechanism - Google Patents

Description

May 7, 1935. A. J. SHEKTER ELECTRIC S WITCH MECHANISM Filed April 27, 1932 2 Sheets-Sheet 1 3mm JShe/ffef Patented May 7, 1935 2,000,648

UNITED STATES PATENT OFFICE Abrflhmii. Shutter, 1m, ".1.- Apollo-them 27, 1932 mm 4 Chill. (Orson-33) nits inventicm relates to back and .iorth or same isused to r-refer to the some pert. oppositely operand electric witch mmhlliilm, Itts not intended to confine this invention to the and has tor its object the w oil eonprecise tormsor sizes ot the elements as-drawn, trivances of special construction on mime-- i wmaw he obviously modified by any m 5 plant to: mekim Ind mokinlnn electric :oirchanic laxniliar withclockmanufacture. 6

cult, the operation reflecting meintem tinu er C n lderins l or the drawin a suitable the em'rentperi and aunt times ior any hodypr stand portion l carries the clock 2 usupurpose to which it may be mixed. any in the lower position as represented. The

This invention inciuaes oswitch-knember nmvomm ms l kw rk may be or my chosen charable-clockwise and counterclockwise by suitable mlnhavinlan hourhcndj andaminute hand 10 clock mechanism, and is provided wiflimeanerfor 4 A disk I isattached to the minute hami arbor completing an eieetric circuit Iormflaent pen- 6 and projecting lrom thedisk is a. pivot pin ode hourly, such being adapted further 1 8 8 8 the l w r nd or! o c w ns r d m maintain e continuously open cinema, or a The rod 8 ext nd upwa ly nd p v l y n- 1; y closed circuit, and semi-males ere 8 00s a pin- 9 upon e circular piece Ill termed trn'hrinciuded tor cmnpleting the mm: tor .e. 1 the rup es: 0! h descrip n h w h andthen brambles oamectimmtn new ill is wed po i iv the pens concerned we again out by had. too revoiuhleshait 1 l, cpdis by the In the accomp mwmgssre 111mm movements "0: the-connecting red I, which rod theelee'ntial in menu:- eommanonm minchlde w en T e 20 ace the pin-mermm the man rier lllslmper s ee the m t ns swit um is, meme. 1 shows a heat view-of em ii, which has thus one pivoted end and one tnehckendiorthcparatedswitchmdthe'flocl, free end. Cleris switch arm.my be secured to iliustrsting all parts assembled; ngjiisaasecor released upon the thremdend at the shaft 5 5' the! view of c portion at thedislor pleteowept H by incense! the thumb nut H. The shaft H 2 switeharm, mm in this passesmoveblv thrush a plate or-circle of inwewmech r with the devices for securm and inflating material designated by number l5, and memes! arm nithrdlpoct mm common the plate hold inposition by means mtheoperatmgdoek Thedccole clbil MV'QB an encircling 3o: triccl conductcrs also cancer in thb m; Bradmtedcuter rim as shown. The plate I5 is Fig 8 is a section view 01' the bcckwull ct e providedone or more wenmgaeuch as IT, cioeicceeing o'r fiemesomewhet emerges, show- "and, u and through any or these openings the me parts maimed to'compiete the switch arm 18 makes a. conducting contact with for-cmeihcd pomof m-hoflr md thongrman underlying metal plate 20 by means 01' the as minim dropping name member contact-end M or the switch arm shown in Fig. 2. meaning the eormection until the minim The extant of the oscillating movement of the Meminsetbyhand. mmwmmimh with arm 10 is governedby the size of the flue eperatingclock wheaeemcsed hithe opimclock disk 5. As illustrated in Fig. l the arm it time The elechwurhs as a whole m nor shown will sweep alternately rightand left in the openl hideilell they fomflopart or this invention. lng II on conducting phase" and the circuit is 40 4 is aside clithe me was 'as 153.8, eontimiouiy closed until-broken by the drop of representing the 111mm more em 1 one enhegeored segments hereinafter described, pmdedwith mermaid Wong 1 1m with or bythetot theum. II the arm II the gear m at theolock' we! isarrenged tosweep the opening l9, either by Fig. illinstraies theflflerent romeotmem arotating the .plate M or adjusting the arm I3, rfleiy adjustable geared switch segments upon them will more back and forth in that opening the some shaft and sham their relative she's or tor-o few minutes in every hour it the circuit elm-nu Pig. 6 ikcverttmlsection proportion a is who closed and the current employed. The the back wail oi a clock oozing or meme disritosnumbm's l to about the rim of the upper dial as me the mm or arbor carrying amusements as in 1-01 the drawings are merely arbitrary m m m Fig 5.1m! illustrating alsotheir reandiior the cc of the user. If'the spectra on the arbor, and the umr'helure mizlringat midnight turnsthe opening or ringer pieces by which each segment may he i! tothenumher 21 or the rim scale, the current smcnw'movud tocettlreme; will be applied 10s a few minutes every hour It mmflwmngs middmi'ptionthe m we mire-sets the devices.

The metal plate is spaced from contact with the shaft II, and suitable conductors are connected, one marked 22 is in connection conductively with the shaft I l, and another conductor 23 is attached to the plate 20. These conductors are joined together when the switch arm is in contact with the plate as illustrated in Fig. 2. The conductors 22 and 23 may be directly connected with a source of electric current and electro-magnetic contrivances actuated thereby, or those conduc-. tors may be included in the second circuit controlled by the geared segmental drops hereinafter described.

In addition to the elements previously described, there are included and supported by the rear wall or frame portion 25 ofthe clockwork mechanism, a gear wheel 26 moved by an hourly rotating sheeve 27. The wheel 25 revolves the lantern wheel 28 on the stationary shaft 29. In Fig. 4.- is set out a geared segment 30 which has just been brought by hand into engagement with the gear 28. The segment 30 has the sleeve body 3i freely movable exteriorly upon the like body of a second geared segment 32, and upon the sleeve body 33 of the segment 32 the segment 30 is loose enough to turn downwardly by its own Weight when freed from the lanterngear 28; There is also shown a third geared segment 34, and the sleeve body 35 of this segment turns freely within the sleeve 33, all the sleeve bodies of the geared segments are carried by the shaft 36 the end thereof being insulated from the frame 25 of the clockwork. A thumb nut 36a engages the end of the shaft 36 outside the frame 25 and a conductor 31, including a suitable hand switch 38, leads to a battery 39 and thence to any electro-magnetic devices sought to be actuated. A

return conductor is'joined by the thumb nut 4| to the shaft 29 of the clock wheel 28.

The geared segments mentionedare separately movable, and set by hand individually in positions such as shown by the segment 30 in Fig.

4. To set the segments the sleeve body of seg-- ment 34 has a handle or finger piece 42,- sleeve 33 has a like handle 43, and sleeve 34 a similar handle 44. The segments and handles are best shown in Fig. 6. The relative sizes of the segments are shown most clearly in Fig. 5. The segment 38 isdesigned to contact for fifteen minutes, the segment 32 for thirty minutes, and the third segment 34 for forty-five minutes. These sizes may be varied in different machines. In Fig. 5 it will be noted that the segment 32 has a weighted portion 32a, and the segment 34 a weighted portion 34a. These weighted portions are proportioned to bring the segments when tzraiey are dropped free from the lantern wheel The operation of the various devices of this invention may be made plain asfollows:

Considering the parts illustrated in Figs. 1 and 2 of the drawings, it will be understood that the connecting rod is constantly reciprocated by the clock mechanism and the carrier correspondingly rocked. When attached to the carrier the arm i 3 will have its free end moved back and forth upon the insulating plate IS. The switch arm is very flexible and resilient, and the contact end 2i is rounded in order that it may readily enter or pass out of any opening in the insulating plate. The ends of those openings may be slightly beveled to aid in raising the end 2| out of the opening. It will be noted further that if the swing of the free end of the arm is greater than the length of the opening, the end 2| will press slightly upon the surface of the insulating plate back and forth. To prevent wear of the insulating plate a protecting strip 24 of metal may be used. Again, it will be observed that if the thumb screw I 4 be unscrewed and the arm released from the carrier, it will remain at rest. As represented in full lines in Fig. l, the circuit is maintained complete, but if the arm is placed with its free end upon the insulating plate as shown in broken lines, the circuit is kept open. Let it be assumed that the arm is arranged to sweep one of the smaller openings I8 or I9, or what is the same in result, suppose the plate l5 by means of the clip I6 is turned around so that the arm sweeps only a portion of the opening 20. Thus, the current will be applied for only a small time each hour. Also, it will be observed that the minute hand 4 is in the position set out in Fig. 1 as the hour hand approaches each hour number on the clock face. If the attendant should so desire, and would adjust the switch arm as the hour hand approaches two o'clock, the circuit will then be completed for a time each hour thereafter.

But, it is often advantageous in heating a dwelling that the heat shall be turned on for a specified time, and then turned off until again necessary. Therefore this invention is provided with the additional attachments illustrated in the Figs. 3 to 6 of the drawings, of which Fig. 4 is most explanatory. In Fig. 4 the fifteen minute segment has been just engaged by hand with the wheel 28. The circuit is completed. As the hour wheel 26 rotates segment 30 turns downwardly and at the end of the period is dropped into the position shown in Fig. 5 and the circuit is broken. One or the other of the segments must be set again by hand to continue the operation. In a similar manner the second and larger segment 32 may be arranged by hand so that the end of the geared portion shown uppermost at the left in Fig. 5 will engage the lantern pinion 28. The segment 32 may be formed with double the number of teeth possessed by segment 30. Therefore, twice the period of time must elapse before the last of the teeth of segment 32 engages the pinion. The segment will then be released and will drop, its descent being aided by the weighted rim 32a in which the teeth are formed. The object of the weighted or heavier rim is in addition to aiding the fall of the segment, to hold the same in about the lower position illustrated in Fig. 5, in which position it is entirely free from contact with the pinion 28 and the circuit is broken permanently until the segment is re-set by hand. Also, it is intended that the still larger segment 34 may be turned by hand to bring the end tooth shown uppermost in Fig. 5 into engagement with the lantern pinion. Now,

a still longer period of time must pass, for ex-' ample minutes, before the last teeth of the segment series engage and are held by the pinion. The segment is finally dropped as in the former instances. The relatively heavier toothed rim 34a of the segment aiding the falling movement, and causing the segment after it drops to assume substantially the position set out in Fig. 5 and out of touch with pinion 28 and maintaining an open circuit. It is not intended to limit those segments to any particular size or form, nor is it desired to confine the invention to use with any special electrically operated mechanism, and no such mechanism is shown. It is intended, and it is believed to be apparent that the conductors 22 and 23 shown in Fig. 2 may be included in the same circuit with the conductors l1 and Cl shown in Fig. 3 and led to heater damper actuatingdevices or the like.

Having now described this invention and its operation, I claim:-

1. In a back and forth operating electric switch mechanism, a clock, in combination with a member revolved by the clock, a connecting rod pivotally attached to the said member at one end and having a reciprocating movement, an insulating plate, a revoluble shaft passing through the plate, a metal plate arranged beneath said insulating plate, said shalt being insulated from the metal plate, a switch carrying device secured to the shaft and revoluble therewith upon said insulating plate, the remaining end of said connecting rod being pivotally connected with the said device, a conducting switch arm movably n aging said shaft, a thumb nut to: securing and releasing said switch arm upon said switch carrying device, the said insulating plate having an opening in the path of the end of said switch arm whereby contact may be made through the insulating plate with the metal plate, and conductors connected with the metal plate and with the said shaft.

2. In electric switch mechanism, in combination, operating clockwork having a gear wheel provided with a predetermined number of teeth, a segmental geared member having a sleeve body. means for supporting said body rotatively, said segmental gear having a predetermined number 01' teeth less than the number of teeth on the gear wheel, the said sleeve body being constructed and arranged to be grasped and turned by hand to set said segmental member in connection with the rear wheel whereby as the wheel revolves the member will be disengaged and drop from the wheel, thereby separating said member and wheel.

3. In electric switch mechanism, in combination, operating clockwork having a gear wheel provided with a predetermined number of teeth, a plurality of segmental members each having a different number teeth, the number 0! teeth of each of said members being less than the number of teeth on said wheel, each of said members having a sleeve body, said bodies being arranged one within the other and provided with means whereby each body may be grasped by hand and turned independently to set a segment into connection with said wheel, means for supporting said bodies rotatively whereby when said wheel revolves the connected segment will be disengaed and drop away from the wheel, thereby separa ing said segment and wheel.

4. In an electric switch mechanism of the character described, operating clockwork mechanism having a gear wheel, a plurality of pivotal geared segments of diflerent extent and separately movable each arranged to be supported by the said clockwork wheel for a period of time to complete an electric circuit and to be dropped at the end of such period to break the circuit, and conductors extending between the said segments and clockwork wheel and adapted to be connected and disconnected by the said segments.

ABRAHAM J. Summit.

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