US1701928A

US1701928A - Variable condenser

Info

Publication number: US1701928A
Authority: US
Publication date: 1929-02-12
Anticipated expiration: 1946-02-12

Description

Feb. 12, 1929.

G. MERLE. 5Rv

VARIABLE conmmsmn Filed April 10, 1925 INVENTOR 6eorye filer/e 5r: 3 BY f A'ITORNE;

Patented Feb. l2, 1929. 7 UNITED STATES PATENT OFFICE.

' GEORGE MERLE, or BnooKLYr-i, new YORK.

VARIABLE CONDENSER.

' Application filed April 10, 1925. Serial No. 22,014.

This invention relates to variable con- In the construction shown, I employ two densers and particularly to devices of this frame members 10 and 11 preferably comclass adapted for use in connection with radio posed of insulating material such hard rubapparatus or circuits; and the object of the h r, bakelite and the like, and these members 50 invention is to provide a device of the class are of the general form illustrated in Fig. 3 specified which is composed of a stationary or the drawing, wherein the member 11 is unit comprising plurality of condenser s wn in plan, and mounted in a sleeve bearplates which extend entirely around the cir- 3 or bushing 12 centrally of and between umference of an axis in any desired p riphd men'ibers and 11 is a shaft 13 which 65 to oral form to the disks, that is to s: y, the disks projects forwar beyond the member 10 and may be round or angular, and also the pr0- s adapted to end through the panel 14: of vision of a pluralityof movable plate un ts a, radio receivi g set, and secured to the shaft cooperatively engaging the stationary unit, ou wardly of the panel is a rotatable gradthe latter units being substantially scmi-cirr d di 15, Deemed t id h ft i 79 15 'cular in form or extending about an axis to wardly of the panel 1 1- and outwardly of the substantially the extent of 180 degrees; a furmember 10 is a small gear 16 and a large gear ther object being to provide one means for 17 rotated by the dial 15 and the shaft- 13. actuating all of the movable units to adjust Mounted upon the bearing 12 between the them relatively to the stationary unit in a members 10 and 11 is a stationary condenser single operationor movement of said means; unit 18 comp 'ising a plurality of thin metala further object being to provide means fol lic plates 19, seven of which are employed in moving s p ra y a i dependently the the construction shown. These plates are movable units into inoperative position square or substantially square in form as whereby said operating means may oper e shown in Figs. 1 and 4: of the drawing but 80 2 one or more as well as all of said movable may be round in form as seen in Fig. 5 of the units a further object being to provide a drawing. A terminal 20 is provided on the Vernier adjustment for said single operative i n r end of the bearing 12 to permit of the 'means; a further object being to provide a deattachment of a circuit wire therewith as will vice of the class described which is of unitary be apparent.

39 construction, means being provided for plac- In the construction shown, four other 1 ing all of the movableconoenser units in comshafts 21 are mounted in connection with the noon circuit and with means for placing the members 10 and 11 and project forwardly stationary nnit in independent circuit; and beyond the member 10 and extend through with these and other objects in view, the inthe panel 13 and are provided at their front 90 vention consists in a device of the class and end portions with enlarged heads or caps 22, for the purpose specified, which is simple In one of which is shown in Fig. 2 of the dr-rw construction and operation, eflicient in use ing, and mounted on the projecting end porand which is constructed as hereinafter detions of the shafts 21 are sleeves 23 which scribed and claimed. are movable longitudinally thereof and 95 The invention is fully disclosed in the follocked in engagement with the shafts 21 by lowing specification, of which the accompins 24 operating in bayon t apertures 25 panying drawing forms a part, in which the in the sleeves Q3. The sleeves 23 are provided separate parts of myimproveinent are dcsigat their outer ends with knobs or heads 26 to nated by suitable reference characters in each acilitate the operation thereof and springs m0 4 of the views, and in which 27 are employed between the caps 22 of the V Fig. 1 is a face view of my improved conshafts 21 and the sleeves 23 to place the parts (lQllSBl"IDOHIItQClUPOIl a panel with parts of under tension. the construction broken away and in section. Mounted in connection with the sleeves 23 Fig. 2 is a section on the line 22 of Fig. 1. between the panel 1s and the member 10 are Fig. 3 is a face view of the back of the congears 28 larger than the gear 16 and adapted denser. V Y I r to mesh therewith when in the position shown Fig. 4 is a detail view, on a reduced scale, in Fig. 2 of the drawing but which may be of one of the platesof the stationary unit moved out of engagement with the gear 16, shown in Figs. 1 and 2-; and, separately, by pulling the sleeves 23 out- 119 Fig. 5 is a view similar to Fig. t but showwardly and locking the same in such posiing a plate of different form. 7 tion by vi tue of the bayonet apertures 25.

of which are employed in each unit, said plates being of the usual form and construction or in other words Sfill'll-CllCllldf'lIl form, and by keying the gears 28 to the shafts'21 through the pins 24: and apertures 25, the

rotation or operatioiro'f the separate units 29 to 32inclusive is controlled and as above stated, when all of the gears 28 mesh with the gear 16, allo'f said units 29? 2 are operated.

The rearends of the shafts 21 operate in metallic bushings 3st in the member 11 and these bushings project through the rear end of said member-and are electrically coupled together by a square conducting plate .35,

see Fig. 3 of the drawing, which is mounted on the bushings 34}, and a terminal 36 is coupled with one of 7 said bushings to place all of the condenser units29-32 n circuit.

- I have shown a plurality of screws or other attaching devices 37 which extend through the panel 1% and intothreaded bushings 38 in the member 10 for holding the condenser device in connection with the panel. I also employ a vcrnier adjustment member 39 comprising a shaftextending through the panel 14 and having a bearing in the member 10,

said, shaft being provided outwardly of the panel 14 with an operating knob 40 and with a pinion 41 adapted to mesh with the large gear'17 wherebya fine adjustment of the units 29-32 is provided. I

. From the foregoing it will be apparent that in the operation of my improved condenser,

all oi i the units 29.32 may be rotated relatively to the stationary condenser unit 18 and said units maybe adjusted to operate rela tively to the stationary unit 18 in thesame relative position or may be set or adjusted to have difi erential relations to said stationary unit as seen in Fig. 1 of the drawing, the ad ustments being made by moving the gears 28 out of enga ement with the gears 16 and turning said ears and the unit coupled theresuch position the pins 24 and apertures25.

with and the: the

v S-Iain meshing tlie'gear 28 with 16. :ll hen'it is desired to operate only a part of the units 2932, those to remain idle willhave the gears 28thereot moved out of engagement with the gear 16 and held in 7 With my improved construction, it will be apparent'that I provide a variable condenser device which employs a single means or dial for actuating the several movable parts or-units :thereof, and which by reason er the adjustment and moveinentotthe separate units or the gears 28 thereof 1 may increase or decrease ustrnent of the st the capacity of the condenser at will, and by virtue of my improved construction, the tuning of radio receiving sets is materially simplified in that Ihave found in practice that when the condenser is adjustedto the desired wave length, further manipulation of the condenser is obviated and the tuning or claritying of the tone, when necessary, may be accomplished by the other means employed in radio receiving apparatus or circuits. It will be understood that while I have the plates 19 of the stationary unit/18 as rectangular in form in Figs. 1, 2 and 4 of the drawing, same may be round as seen at 19 in Fig. 5 of the drawing, and it will also be apparent that I not necessarily limited to the shape of theplate l9--19 nor am necessarily limited tothe number ofthese plates employed in any one apparatus, and further, nyinvention is not limited to the four movable condenser units such as the units 29-,? 2, andyarious changes in and'm'odificat ons of the condenser unit construction and arrangement herein shown and described as well as themeans "for actuating the movable units, may be made within the scope or" the appended claims without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A condenser of the class described comprising a. stationary condenser unit and a plurality of movable condenserunits mounted in cooperative relation with the first named unit, means involving a single operated device'nor'mally in engagement with and adapted to actuate said movable units, said last named means. involving means for moving one or more of said units out of operative relation with said first named means, said last named means also permitting of the adjustment of the separate movable unitsinto 'dltierent-positions relatively to each other and to the stationary unit.

ed to actuate said movable units, said last" named means involving means for moving one or more of saidunits out of operative relation with said first named means, said" last named means also permitting of the ad rate movable units into difierent positions relatively to each other and to the stationary unit, and a Vernier adjustmentunit for actuating said first named means. V j

' 3. A condenser oi the class described coniprising a stationary condenser unit and a plu- I rality of movable condenser units mounted in cooperative relation with the first named unit in a circuit named unit and each unit, means involving a single operated device norn'la-lly in engagement and adapted to actuate said movable units, said last named means involving means tor moving one or more of said-units out of operative relation with said fir t name-d means, said last named means-also permitting ot the adjustment of the separate movable units into dill'erent positions relatively to och other and to the stationary unit, a Vernier adpistment unit for actuating said first namednieans, and means J. J.

or placing a circuit in communication with all of said movable units.

l; A condense-1r the class described comprising a stationary condenser unit and a plurality of movable condenser units mounted in cooperative relation with the first named unitmeans involving a sinole 0 aerated devii e normally in engagement with and adaptcd to actuate said movable units, said last named mcans'involvin means for moving one or more oi said units out of operative relation with said first named means, said last named means also pcrn'ii ing of the adjustment of the separate movable units into diti erentposit-ion": relatively to each other and to the stationary unit, a vcrnier adjustn'ient unit tor actuating said first named means,

' means ior placing a circuit in communication vith all of said movable units, means for insulating the stationary unit. tro 1 the movable units, and means for placing die stationary independent of the first named circuit.'

A condenser of the class described com iiing a stationary condenser unit compose l or a plurality of spaced disks or predetermined "orm and a plurality of rotatable condenser units of substantially the same ca- )acit spaced about the oeri )herv ot the first .l i i mined term and a plural v oi rotat ble condenser units of substantially the same capacity spaced aboutthe periphery of the first of which comprises a plurality of disks adapted to be positioned Fr} "7 (7D D l r 7c l am mom is eiimen tic (lio s O1 18 stationary unit and spaced tncrerrom, means involving a single dial tor actuating all of movable units, and means for moving the so "ale movable units into inop i position with reference to said last named means whereby one or more of said movable units of strai 'ht edges and a )luralitv of mocabl may be actuated by means of said dial, and means for providing fine adjustmentof said movable units.

' A condenser of the class described comprising a stationary condenser unit composed of a plurality oi. spaced l tes, the periphery said plates being div red a plurality of said plates being" divided into a plurant" .0 condenser units ot substantially the some can pacitv positioned centrally of the straight ot the plates of s l stationary unit and each of said movable units comprising a plurality ot semi-circular and paced plates adapted to cooperate with and be positioned between the adjacent portions of the plates of the stationary unit and to be movable into and out of engagement therewith, each of said movable units being provided with a gear and a gear normally meshing with the gears of all of said units whereby therotation of said last named gear will operatesaid movable units.

9. A condenser of the class described comprising a stationarycondenser unit composed of a plurality of spaced plates, the periphery of said plates being divided into a plurality of straightedges and a plurality of movable condenser units of substantially the same capacity positioned centrally ot' the straight edges of the plates of said stationary unit and each of said movable units con'iprising a plurality of semi-circular and spaced plates adapted to cooperate with and be positionet between the adjacent portions of the plates of the stationary unit and to be movable into 'l out of engagement therewith, each of said movable units being provided with a gear and a gear normally meshing with the gears of all of said units whereby the rotation of said last named gear will operate said movable units. and graduated dial for actuating: the second named gear.

10. A condenser of the class described comprising a stationary condenser unit composed of a plurality ot spaced plates, the periphery of said plates being dividen into a plurality of straight edges and a plurality of movable condenser units of substantially the same capacity positioned cent-rally or the straight edges of the plates of said stationary unit and each of said movable units comprising a plurality of semi-circular and spaced platesadapted to cooperate with and be positioned between the adjacent portions of the plates of the stationary unit and to be movable into and out of engagement therei with, each of said movable units being proand each of said movable'units comprising a Vided witha gear and a gear adapted to mesh with the gears of all of said units whereby the rotation of said last named gear will operate said movable units, a graduated dial for actuating the second named gear, and

-111G3I1Sf0l moving the first named gears independently into and out of engagement with the second named gear in the independent "adjustment of said movable condenser units.

11. A condenser ofthe class described comprlslng a stationary condenser unit composed of a plurality ofspaced plates, the periphery plurality of semi-circular and spaced plates adapted to cooperate with and be positioned between the adjacent portions of the plates of the stationary unit andto be movable into and out of engagement therewith, each of said movable units being provided with a gear and a gear adapted to mesh with the gears of all of said units wherebythe rotation of said last named gear will operate said movable units, a graduated dial for actuating the second named gear, means for moving the first named gears independently into and out of engagement with the secondnamed gear in the independent adjustment of sald movable condenser units, and a ver nier adjustment for said movable'units comprising a large gear rotatable by said dial, a

pinion meshing with said gear and means whereby said pinion may be rotated.

In testimony that I claim the foregoing as I my invention'I have signed my name this 8rd day of April, 1925.

enosen MERLE, sit.