US951788A - Electro-adjustable condenser. - Google Patents

Description

i latented Mags, 1910.

` H. GERNSBAGK. Y

ELECTRO ADJUSTABLE GONDBNSER,V

APPLICATION FILED JAN. 9, 1909.-

j Snom/Lto@ witnesses QD" l in wireless' te HUGO GERNSBACK, OF' NEW YORK., N. Y.

ELECTRO-ADJUSTABLE CONDENSER.

Specification Letters Patent.

Patented Mar. 8, 1910.

Application mea January 9, 1909. serial No. 471,405.

To all whom 'it may concern:

Be it known that I, Huso GnRNsBAcx, a subject of the Kingdom of Luxemburg, and residing in the United States, in the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in`Electro- Adjustable Condensers, of which the following` is a full, clear, and exact specification.

his invention relates to electro-adjustable condensers, which c'onsists of a plurality of Leyden or other jar condensers, for use in connection with commercial wireless telegraphy, and also for use in connection with the conducting of experiments of all kinds egraphy and in all high tension work, for the pur ose vof changing or varying the capacity o the electric circuit.

One object of`V this invention and of my improved construction is to enormously increase the sending radius of a wireless teleaph station, by increasing the length of uration of the oscillations of the waves across the spark gap, as well as rendering the waves considerably `more powerful.

Another object is to provide an inexpensive electro-adjustable condenser with a maximum simplicity of construction and of correspondingly high efficiency, and, by reason of my improved construction, the capacity of w ich may be increased or decreased by simpl snapping into or pushing or pulling out o operative position in the frame, one or more Leyden jars or other condenser jars. Another object of my invention is to construct an improved electro-adjustable condenser without the employment of connectin wires and vwithout the use of screws for ho ding the jars in place, and to make leakage absolute y impossible.

Another object is to provide each of the jars at the bottom thereof with a spring clip, by means of which the jars may be snzppled into or out of position 1n the frame, an eld firmly by. thls means in conjunction with small iron or 'other metal knobs fastened in the bottom of the condenser frame and by means of circular indentations or recesses in the top of said frame.

The foregoing and other objects-of my Y invention wlll be fully understood from the following description and accompanying drawings, in which- Figure 1 is a front elevation of m improved electro-adustable condenser, 1n its preferred form. ig. 2 -is a view in section,

taken o'n the line 2-2 of Fig. l, and Fig. 3 is a plan view of the spring clip provided at the bottom of each condenser jar. l

/Referring to the drawings (Fig. l) ,it will be seen that the frame or receptacle 1 holds in operative position a lurality of condenser jars 2, by means o circular indentations or recesses 3 at the top of the frame on the inner side thereof, and by means of spring clips 4 provided at the bottom' of said condensers, the said spring-clips 4 engaging the two groups of small roundlmetal knobs 5, which latter are suitably fastened' to the bottom of the rectangular frame. The frame orreceptacle 1 maybe made of wood or any other suitable .materiah and the spring clip 4 may consists of hosphor bronze sheeting, or any other suitable metal.

When it is desired to remove one or more of the condenser jars 2, for the purpose of changing or varying the capacity of the condenser, the said condenser jars, by reason of my)v improved construction, may be easily pushed or pulled out of position, and when it is desired to increase or changeythe capacity 0f the condenser, the said condenser jars may be readily snapped into the, frame and iirmly held therein by means of the said spring clips 4 and the circular recesses or indentations 3, in connection with the small round knobs 5.

The inner surface of the top of the frame 2, as well as the indentations 3, is covered vwith metal foil 6, and which metal foil acts as a suitable conductor. The metal foil 6 is glued or pasted to the frame by means of glue or other adhesive liquid. The bottom portion of the frame is provided with two groups of small iron buttons or knobs 5,

and underneath the heads of said buttons Yrespective condenser jars 2, and are held in position by the knobs 5 and washers 7, which in turn are suitably fastened to the bottom of the frame as above explained.

Referring to Fig. 3, it will be seen that. the spring clip 4 is provided with a. round opening or recess 9 in the center thereof,

which is. adapted to engage the top of the knob 5. y

lt will be understood that my invention may be embodied in various other forms and modifications not herein shown or described Without departing from the spirit or scope thereof, and I do not Wish .to be considered as confining myself to the exact construction, instrumentalities or materials herein shown and described.

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

1. The combination oit a frame, a conducting member fastened to the upper side of said frame, separate conducting members fastened to the bottom side ci? said trame, a plurality of condenser jars, and springpressed means for supporting; .said condensers between the opposite sides of said frame.

2. The combination of a frame, a layer of metal foil fastened to the upper inner part of said frame, a plurality ci conducting members on the bottom ofsaid frame, a plurality or condenser jars,` and means for supportingsaid condenser jars between the top and bottom of said frame in such a manner that the metal foil forms an unbroken conductor between the said condenser jars.

3. The combination of a rectangular frame having indentations onthe upper inner side thereof, a conducting member carried by said upper inner side 'and tting into said indentations, and means for supporting a plurality of condensers within said trame.

The combination of a rectangular frame having circular recesses on the inner up er side thereof, a iayer of metal :toil fastened) to said inner upper side and forming part o said circular recesses, a plurality or conn denser jars, and means Jfor removably supporting said condenser jars in such a manner that the conducting surfaces or" the'said condenser jars Contact with the said metal i'oil forming art ot said circular recesses,

5. The com ination of a rectangular frame, a conducting,l member on one side thereof, plurality of rojectionson the opposite side thereof, con ensers provided at their lower ends with spring-pressed means, adapted to be supported between the said conducting member and the said projections and held in place by said springpressed means, and a conducting member connecting said condensers.

- l 6. The combination or a rectangular frame having indentations on the inner upper side thereof, a conducting member lued to said inner upper side and tting into said indentations, a plurality of buttons on the bottom portion of said frame, a plurality orn condenser jars adapted to be carried by said frame and being held therein by said indentations and said buttons, and afplurality of conducting wires connecting sai buttons.

7 The combination in arectan'ular frame having recesses on one side thereoi and round knobs at the opposite side thereof, means for fastening said knobs to said frame, a layer of metal foil asted on one side of said frame and fitting into said recesses, a plurality of condenser jars adapted to be carried between said recesses and said round knobs in such a manner that the contacting surfaces of said condenser jars complete the electrical circuit.

8. The combination of a receptacle composed of a top and bottom portionand two side portions, a conducting member carried by the top ortion'and ttedv into indentations in saidp top portion, a plurality or buttons divided into two groups on the bottom portion of said frame, connections between the buttons in each group independently and separately from each other,'a plurality of condenser jars, s ring members on the said condenser jars a apted to contact with the said buttons tor retaining the condenser jars in position, and the to oi" said condenser jars being adapted to "t into the aforesaid indentations. i

9. The combination of a rectangular iframe having indentations on the inner upper side thereof, a layer oi metal toil lued to said inner upper side and iitting into said indentations, a plurality oi round knobs divided into two grou s on the bottom side of said frame, means yor astenin said knobs tothe bottom of said frame, was ers between said knobs and said fastening means, a plurality or" condenser jars provided with spring clips at one end thereof, said spring clips being adapted to Contact with said round knobs for retaining the condenser jars in operative position, a piurality oi wires for connecting the respective groups of knobs with the source of supply or electric current, and means iorholding said wires in dried position.

l0. The combination of a plurality oi condenser jars, each of which is provided with a conicai end, a rectangular 'rame for supporting said condenser jars in operative 'J osition, ti e said i'rame being provided putti indentations at the top thereoi'i2 for receiving the said conical ends oi? said condenser jars and a continuous conducting member i'itte 'into said indentations `for the purpose of electricallyconnecting the said condensers.

il. The combination of a, plurality or" condenser jars, one end of each of which is oi conical conformation and the other end oi each of which is provided with a spring clip,

withra. plurality of buttons for contacting nected with the source of supply and with 10 with -said spring clips for holding the conthe said bttons respectively.

denser jars m, operative position, a'continu- In testimon whereof lI aix my signature, ous conducting member fitted into said inin 'presence o two witnesses.

dentations at the t0 0f the frame -:01`- the I pur ose of electrica 1y connecting the said con ensers at one end thereof, a conducting wire vheld in position by said buttons at the bottom of the frame, said Wire being con- Witnesses:

CABL WrrmMANN, Orro Ro'rfm.

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