US292603A - Henby e - Google Patents
Henby e Download PDFInfo
- Publication number
- US292603A US292603A US292603DA US292603A US 292603 A US292603 A US 292603A US 292603D A US292603D A US 292603DA US 292603 A US292603 A US 292603A
- Authority
- US
- United States
- Prior art keywords
- transmitter
- cylinder
- cork
- microphone
- pencil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052799 carbon Inorganic materials 0.000 description 16
- 230000001702 transmitter Effects 0.000 description 16
- 239000007799 cork Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000002023 wood Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 125000000267 glycino group Chemical group [H]N([*])C([H])([H])C(=O)O[H] 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
Definitions
- My invention relates to the construction of a microphone or transmitter, and to the manner of embedding the same in a hollow cylindrical block of wood, cork, or other resilient material, and will be understood from the following description, with reference tothe drawing, which shows a plan or top view of a group of my improved transmitters, one of them being shown in sect-ion to show the construction of the microphone.
- A represents a baseplate, to which the transmitter is secured, and B a hollow cylinder, of wood, cork, or other suitable material, secured to said base-plate in any suitable manner.
- the plate A may form one of the sides or the front or back of a box inclosing the transmitter, which may be secured to the inner face of said plate.
- the baseplate' constitutes the front or top of the, box
- the transmitter may be secured to the inner face thereof, andthe sound-waves, being directed against the outer face, will be communicated through said plate to the transmitter on its inner face.
- the microphone consisting of two short socketed cylindrical blocks, O and O', of carbon or equivalent material, which lit within and snn gly fill the ends of ⁇ the bore of the cylindrical block B, and between which pieces C and O is placed a third cylindrical block or pencil, O2, of similar material to the blocks G and 'G.
- This intermediate cylinder is of smaller diameter than the internal diameter of the cylinder B, and is provided-at its ends with projecting points or spurs d d', which enter sock.
- the cylindrical blocks O and C are connected with the battery and line-wirs in any usual or preferred manner, and, in connection with the interposed cylinder or pencil' C2 and the inclosing or embedding cylinder of cork orwood, constitute mytransmitter complete; but for giving increased power to the apparatus or instrument I prefer to employ a series of embedded electrodes, similar to those described above, arranged side by side, as shown, or in-other suit-able compact form, and
Description
(No Modell); f
' H. E. WAITE.
l g TBLEPTTONE TRANSMITTER. 10.292,603; Patentedhn; '29,1884'.
WITNESSES Uv VEJvToR l UNITED STATES PATENT OFFICE.
HENRY E. WAITE, OF NEW YORK, N. Y., ASSIGNOR TO THE MOLECULAR TELEPHONE `COMPANY, OF SAME PLACE.
" 'TELEPHONE-TRANSM ITTER.
SPECIFICATION forming part of Letters Patent No. 292,603, datedd'anuary 29, 1884. Application ined May 1o, 1883. (Neiman.)
.To all whom it may concern,.- Y
Be it known that I, HENRY E. WAITE, of Nrw York, county of New York', and State of New York, have invented a new and useful Improvement in Telephone-Transmitters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, making part of this specification.
My invention relates to the construction of a microphone or transmitter, and to the manner of embedding the same in a hollow cylindrical block of wood, cork, or other resilient material, and will be understood from the following description, with reference tothe drawing, which shows a plan or top view of a group of my improved transmitters, one of them being shown in sect-ion to show the construction of the microphone.
A represents a baseplate, to which the transmitter is secured, and B a hollow cylinder, of wood, cork, or other suitable material, secured to said base-plate in any suitable manner. The plate A may form one of the sides or the front or back of a box inclosing the transmitter, which may be secured to the inner face of said plate. Where the baseplate' constitutes the front or top of the, box, the transmitter may be secured to the inner face thereof, andthe sound-waves, being directed against the outer face, will be communicated through said plate to the transmitter on its inner face.
Within the cylindrical block B isembedded the microphone, consisting of two short socketed cylindrical blocks, O and O', of carbon or equivalent material, which lit within and snn gly fill the ends of `the bore of the cylindrical block B, and between which pieces C and O is placed a third cylindrical block or pencil, O2, of similar material to the blocks G and 'G. This intermediate cylinder is of smaller diameter than the internal diameter of the cylinder B, and is provided-at its ends with projecting points or spurs d d', which enter sock.
ets in theend cylinders, O and O', which are thus connected by said piece C2, and serve to uphold the latter ont of contact with the iny closing-cylinder B, and at the same time to effectually shut it up within said cylinder, and thereby to protect it from dust and atmospheric action. The points or spurs d and d,
sockets in the short cylinders O and C', rest sufliciently loosely therein to 4permit slight end play of the intermediate cylinder or pencil, C2, which is made somewhat less in length than the distance between the inner ends of the blocks C and C', to accommodate or per* mit such end play, thus leaving the piece C2 free to disturb the current passing through the microphone, under the action of the soundwaves thrown against the plate to which the cylindrical block ot' cork or wood containing the microphone is attached. `The cylindrical blocks O and C are connected with the battery and line-wirs in any usual or preferred manner, and, in connection with the interposed cylinder or pencil' C2 and the inclosing or embedding cylinder of cork orwood, constitute mytransmitter complete; but for giving increased power to the apparatus or instrument I prefer to employ a series of embedded electrodes, similar to those described above, arranged side by side, as shown, or in-other suit-able compact form, and
while they snuglyll the inner ends of the by connecting them by wires, as shown, or by other suitable conductors, to combine their powers lnto a single transmitter, in a manner well understood.
' Having now described my invention, what I claim as new is- In a telephone-transmitter, the carbon pencil O2, provided with tenons upon its ends, in combination with the blocks C and O, of similar material, socketed to receive the tenons upon said pencil, all inclosetl within a protecting-cylinder of wood or cork, substantially as described. l In testimony whereof I have hereunto set my hand.
HENRY E. WAITE.
Vitnesses:
H. B. ZEVELY, E. W. DE KNIGHT.
Publications (1)
Publication Number | Publication Date |
---|---|
US292603A true US292603A (en) | 1884-01-29 |
Family
ID=2361790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US292603D Expired - Lifetime US292603A (en) | Henby e |
Country Status (1)
Country | Link |
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US (1) | US292603A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932711A (en) * | 1973-09-13 | 1976-01-13 | O'brien Gerard J | Transmission of voice or sound through telegraphy |
US3970804A (en) * | 1974-03-25 | 1976-07-20 | Brien Jerry O | Electro-mechanical amplifier sound transducer |
US20050263077A1 (en) * | 2004-05-28 | 2005-12-01 | Board Of Regents, The University Of Texas System | Adaptive shape substrate support method |
-
0
- US US292603D patent/US292603A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932711A (en) * | 1973-09-13 | 1976-01-13 | O'brien Gerard J | Transmission of voice or sound through telegraphy |
US3970804A (en) * | 1974-03-25 | 1976-07-20 | Brien Jerry O | Electro-mechanical amplifier sound transducer |
US20050263077A1 (en) * | 2004-05-28 | 2005-12-01 | Board Of Regents, The University Of Texas System | Adaptive shape substrate support method |
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