US960021A - Diaphragm for talking-machines. - Google Patents

Diaphragm for talking-machines. Download PDF

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Publication number
US960021A
US960021A US53733910A US1910537339A US960021A US 960021 A US960021 A US 960021A US 53733910 A US53733910 A US 53733910A US 1910537339 A US1910537339 A US 1910537339A US 960021 A US960021 A US 960021A
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diaphragm
talking
machines
sounds
kane
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Expired - Lifetime
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US53733910A
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Frank Kane
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Frank Kane
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones

Description

F. KANE. DIAPHRAGM Fon TALKING MACHINES. y nruourox Hmm JULY 2a, mov; 'nnxnwnn ul.1o,1s1o.- Y 960,021 Patented May 31,191.0.
TN ses wl E5 INVENTOR* FRANK KANE, OF TACONY, PENNSYLVANIA.
DIAPHRAGM FOR TALKING-MACHINES.
Specification of Letters Patent.
Patented May 31, 1910.
Application led July 23, 1907, Serial No. 385,203. Renewed January 10, 191.9. Serial N o. 537,339.
To all whom 'it may concern:
Be it known that I, FRANK KANE, a citizen of the United States, residing at Tacony, county of Philadelphia, and State of Pennsylvania, have invented a certain new and useful Improvement in Diaphragms for Talking-Machines, of which the followin is a specification.
My invention relates to a new and useful improvement in diaphragms for talking machines, and has for its object to so construct a diaphragm as to enable it to reproduce with greater accuracy the various sounds, such as singing, talking and the tones of all kinds of musical instruments and to prevent the harsh metallic sound heretofore incident to the reproduction by such machines.
With these ends in View, this invention consist-s in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claim.
In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by letter to the accompanying drawing forming a part of this specification, in which- Figure 1 is a plan view of my improved diaphragm, and Fig. 2, a central section thereof.
In carrying out my invention as here em-` and the cupped portion B acts as a reservoir for the sound waves to increase their volume.
I am aware that diaphragms have been made of copper, but in practice such diaphragms give out a harsh metallic sound, and while fairly reproducing the sound waves of a drum or heavy wind instruments it does not accurately produce the sounds of a stringed instrument, such as a banjo, nor does it accurately reproduce the various tones of the human voice, whereas my diaphragm will accurately reproduce all of the various sounds separately or at the same time making it especially applicable to the reproduction of the sounds of an orchestra together with singing.
One of the advantages of the concave portion B of the diaphragm is that it houses the sound vibrations from the record, thus giving a clearer tone to the sounds issuing from the horn, and it also strengthens the diaphragm, and as the latter is made of metal it is very durable.
Having thus fully described my invention, what I claim as new and useful, is-
A diaphragm composed of a central cupped portion of uniform thickness and a horizontal disk like portion being of greatest thickness at the periphery of said cupped portion and thence gradually decreasing in thickness and tapering to the periphery of said disk-like portion which is of least and wafer like thickness.
In testimony whereof, I have hereunto affixed my signature in the presence of two subscribing witnesses.
FRANK KANE. Witnesses W. C. BURKHOLDER, J. I-I. CURRIER.
US53733910A 1910-01-10 1910-01-10 Diaphragm for talking-machines. Expired - Lifetime US960021A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603035A (en) * 1949-03-16 1952-07-15 James H Countryman Sound producing attachment for bicycles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603035A (en) * 1949-03-16 1952-07-15 James H Countryman Sound producing attachment for bicycles

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