US1048253A

US1048253A - Telephone-transmitter.

Info

Publication number: US1048253A
Application number: US23888704A
Authority: US
Inventors: David H Wilson
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-12-30
Filing date: 1904-12-30
Publication date: 1912-12-24
Anticipated expiration: 1929-12-24

Description

D. H. WILSON. TELEPHONE TRMNTSMITIR.-

APPLICATION FILED DEU. 3U, 180.4.

1,048,253. Patented Deo. 24, 1912.

Unrrnn sfrafrias PATENT manier..

DAVID H. WILSON, CHICAGO, ILLINOIS, ASSIGNOR. BY MESNE ASSIGNMENTS. TO DAVID H. WILSON AND ROBERT BINES. TRUSTEES. OF NBV] YORK. N. Y.

TELEPHONE-TRANSMITTER.

Specification of Letters Patent.

Patented Dec. 2114191?.

l Application inea December so. 1904. serial No. 238.38m

To f1.1/ Ir/io//f if may conce/'a lie .'t lniown that l` Divin ll. Wilson'. a citizen ot' the lUnited States, residing at Chicago, in the county ol? Cook and State of l'llinoishave invented a certain new and useful improvement in Telcphone-Transmitters, oi which 'the following isa specifi cation.

'My invention relates to telephone trailsnntters. and has for its object to provide a `new and improveddevce ot this descrip- In carrying outmy invention provide` two diapliragms A and B attached to'snitable side pieces A1 B1. These liaphragms' I may be ot' any material ordinarily` used, or may be of mica or the like. lonnected with these diaphragnis are the telt-.scoping receptacles or cups A2 Ba containing suitable conducting material, such as granulated carbon. Each cup may be provided with one or more buttons A5 B3 of metal. carbon. gold plated carbon. or the like. The teleseoping cups may be made in any desired manner. As

.herein shown these cups are provided with bottoms i t ll" which act as diaphragme and which may be called auxiliary diaphraems. These auxiliary diaphragms may be ma e of conducting material or non-conducting material such as mica or the like. tomsl of the cups may be held in position by means of the holding pieces NMBS. each of which consists of an annular ring having a projecting part to engage the bottoni of the cup, the ring being threaded so as -to be screwed upon the body of the cup. 'Interposed between the diaphragms A. and B and the cups A2 B2 are the intermediate pieces A6 B, the screws or other attaching `means A," BT passing through these intermediate parts and acting as connecting pieces to which areconnected the conductors AS B8.

-This arrangement leaves the cups free from the. diaphragme A and B, except at the cenbe 'lurther secured by screws D. o1-

Tlie botand ll as hereirv shonn :ere considerahlv larger than the teleseopmg rups and project beyond the edges thereot. f l'v means ot' thi.`I construit-tion and the attarlunent ot' the oups at the middle ot the diaphri'fmy rated by a separating piece tl. and a screw.

threaded ring C1 engages both side pie|e.- A1 B1. thus holdingr the parts firmly in position. ,moutli-pieee D provided with two branches D? D: is used. the brain-lies communicating respectivel)v with the side pieces .V Pf. The'mouth-piece ma) be held in position in anvdesired manner. Ae herein lshown the .side pieces and PN are provided with annular projections A" li and the branches oi the mouth-piece are sprung out so that when the ends are placed within these annular projections the part will be held in place. The parts may also tlnl screws or other attaching devices may he used without the annular projections.

l' have described in detaila particular construction embodying mv invention. but it is oi course evident that the part.` may h varied in' many particulars without departing from the spirit ot m v invention. l thererore do not limit mvseltto the partit-u- -lar construction shown.

The use and operation of m v invention are as follows: Il hen the part-s are in proper position the operator Talks into the mouthpiece D. The vib `ations offI the air thus produced act upon both diaphragme A andB and cause them to vibrate. This produces a movement of the telescoping cups, the cups moving frcelj1 one within the other so as to move the auxiliary diapliragms to and from.

each other andl vary the resistance between the electrodes. It will be seen that iii this construction the carbon is confined between two movable electrodes both of which move tion Iam enabled to provide a transmitter of very great eiiiciency andadaptability.

This transmitter consists of a'V receptacle, as

it were, divided into threechambers, each of the outer chambers provided,\vith a connecf f tion which lea-ds to'a suitable mouth-piece,

vof the transmitter.

the other chamber containing the electrodes It will further be seen that the vibrations due to the voice of the A telephone "transmitter comprising a fdiaphragnr` a carbon holding cup associated .with said diaphragm so as to mov'ethere'- f with, a flat flexible diaphragm forming the bottom of said cup, an electrode within said cup and resting' upon saidflat flexible dia- `so as to'hold thenrftogether, and a telescopi phragm, a connecting piece passingthrough the first mentioned diaphragm and the cup ing' part nfor said carbonl cup. 2. A 4telephone transmitter comprising a diaphragm, a carbon holding` cup attached lto said diaphragm near the middle thereof, aseri'es of separate conducting buttons having non-parallel edges and connected with t,.e bott-om of said carbon cup and separated by the granulated carbon in the cup, each of saidbuttons located at one side of the .central axis of the cup, 'and a central conduct- ?ing button surrounded by said separated buttons.

l 3. A telephone transmitter comprising a diaphragm, a carbon holdingcup attached to said diaphragm near the ,middle thereof,

an intermediate connecting' piece and separate from the cup and diaphragm engaging the diaphragmv and the outside of the bottom of the carbon holding' cupysa'id. carbonv holding; cup smaller in diameter than. the

diaphragm, a series .of separated electrodes connected with the bottom of said cup, and

a, telescoping. part eoperating gai two side pieces, aA separating ring between a them, two' diaphragms lheld' between said side pieces and separating ring, and a eonneet-ing` piece outside of saidseparating'ri'ng 60 and engaging,- the two side pieces.

6. A 'telephone 'transmitter comprising two opposed diaphragme, two telescopingz,` carbon cups between said diaphragme and smaller than the diaphragme so that the`diaphra-gms project beyond the edges thereof, one of vsaid carbon cups connected to each diaphragm.4

7. A` telephone `tranSmitterj comprising" two opposed diaphragme, two telescoping carbon cups interposed between them, 4each provided with 'abottom separate from the cup, the bottoms loit said cups' connected respectively with the said diaphragme, and an intermediate piece between each c up and its associated diaphragm. F 8. A telephone'transmitter.consist-ing ot a receptacle divided into three-chambers each of the exterior chambers: provi-ded with, an outlet whichleads to a mouth-piece, the interior chanhlnr provided .with opposed'. electrodes eachr of which'is adapted to be moved while thedevice is being used, opL posed" diaphragms 'carrving said electrodes, telescoping cups on said diaphragme, said electrodes contained within telesicoping);` cups which -cooperate with each other. v

. -DAVlD H. WILSON.'

l .lVitnesses:

HOMER L. KRAFT, EDNA K.v REYNOLDS.