US1061071A - Sound-box. - Google Patents

Sound-box. Download PDF

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Publication number
US1061071A
US1061071A US75288613A US1913752886A US1061071A US 1061071 A US1061071 A US 1061071A US 75288613 A US75288613 A US 75288613A US 1913752886 A US1913752886 A US 1913752886A US 1061071 A US1061071 A US 1061071A
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Prior art keywords
sound
box
ring
plane
diaphragm
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Expired - Lifetime
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US75288613A
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Albert Hayes
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Albert Hayes
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Priority to US75288613A priority Critical patent/US1061071A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Description

AQ HAYES.
SOUND BOX. APPLICATION TILED MAR. 8; '1913.
1,06 1,07] Patefi'tedMay e. 1913;
W ZJV? S" INVENTOR w/w/wyw es l 1 Aawwy UNIE 'ALBERT HAYES, OF SALT LAKE CITY, UTAH.
SOUND-BOX.
, To all whom it may concern:
Be it known that I, ALBERT HAYES, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake, State of Utah, have invented certain new and useful Improvements in Sound-Boxes, of which the following is a description, reference being bad to the accompanying drawings, forming a part hereof.
My invention relates to sound boxes for gramophone and graphophone reproducers and has-for its object to provide a sound box which will produce improved results in the reproduction of sound from arecord disk or cylinder or other means for causing vibration of a diaphragm particularly increased lcudness, greater clearness, greater sweetness of tone, the production of throat notes as against the nasal tones characteristic of most sound rcproducers in use, and
the elimination of overtones.
' claimed.
lVith these objects in view my invention consists in the construction and combination of elements Referring tothe drawings, Figure 1 is a central vertical sectional view of a sound box embodying my invention on the. plane of the lever-by which the diaphragm is vibrated. Fig. is a central vertical sectional view on a plane at right angles to that on which Fig. 1 is taken, and Fig. 3 is a bot.- tom plan view of the sounding board and the ring which carries it.
In the drawings 1 indicates the body of the sound'box haviug'eentral opening 2' 1n the same plane which plane is at right angles with the axis of the body 1. Between the ringfet and the flange 3 is a de-. pressed annular channel 5 which is so formed that it is deeper, relative to the plane of the face of the ring 4, on one side than on the other so that the plane of the bottom of the annular channel 5 is at a slight angle to the plane of the dressed face of ring 4. On one side the flange 3 is cut away and is provided at the ends of the cut;
away. portion with lugs 6 each of which is provided with an inwardly extending bear-j Specification of Letters Patent.
Application filed March 8, 1913.
hereinafter described and Patented May 6, 1913.
Serial No. 752,886.
ing point 7, preferably adjustable in the lugs, to form the bearings for the trunnions of a lever 9, the outer arm 10 of which is provided witha socket to receive the needle 13 is rigidly secured a disk is, preferably of mica of a diameter slightly less than the interiordiameter of the flange 3, and provided on its periphery with a ring 15 of compressible material such as semi-hard rubber, that is rubber which has been vulcanized sufiiciently to make it harder than soft rubber but not sufliciently to give it the rigidity of hard rubber. velops the periphery of the diskso as to form a'somewl' at coinpres .ble ring above it and below it. v
16 indicates what may be termed a sounding board. This is carried by a ring 17'hav ing inwardly extending annular shoulder 18 adapted to fitover and upon the ring 15 to force it downward so that the portion of the ring below the periphery of the disk M will be pressed firn'ily against; the bottom of the annular channel 5 throughout its extent so that the disk l t-will be forced or distorted into a plane oblique to, that is not at right angles to, the axis of the sound box.
The sounding board 16 is prt *ided with openings 20 preferably curved as shown, and within the sound box are arranged strings 21 preferably of cat-gut having their ends secured in openings formed in the ring 17, the strings being drawn taut and being each arranged near to one of the openings 20 and in the same/general direction as that of the opening. board 16 with its openings and the strings 9O overtones are eliminated so that the tones produced from the record are pure and clear.
By reason of the bowing or distortion of the disk 1% as above described it. is much more sensitive than it would otherwise t its edges are firmly held and the only move ment permitted is a. movement of the central portion'of the disk and this movement is restricted by the distortion.
The portion of the compressible ring 15- which isbeneath'the periphery of the diaphragm is-restricted by the Outer edge or By lhe'use of the sounding This ring 15 enring 4-. on the one side and the flange 3 on the other side from expanding laterally when put under. compression.
It will, of course, be understood that I do not desire to be limited to the particular construction and arrangement shown as it Will be obvious that the precise construction and arrangement may be varied without departing from the spirit of the invention.
Having thus described my invention What I claim is:
In a sound box the combination with a box. body having a central opening therein, a diaphragm Within the box body and means for vibrating it, of a soundboard extending over and closing the box body, having openings therein, and strings under tension extending across the sound box between the sounding board and the diaphragm, the sound board and strings being arranged on the side of the diaphragm opposite to that which faces the central opening in the sound box body.
This SPGClfiCZLlJlOII signed and witnessed this 8th day of March A. D. 1913.
ALBERT HAYES. I
US75288613A 1913-03-08 1913-03-08 Sound-box. Expired - Lifetime US1061071A (en)

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US75288613A US1061071A (en) 1913-03-08 1913-03-08 Sound-box.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541163A (en) * 1946-09-27 1951-02-13 Edison Inc Thomas A Acoustically filtered phonographic reproducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541163A (en) * 1946-09-27 1951-02-13 Edison Inc Thomas A Acoustically filtered phonographic reproducer

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