US1122679A - Talking-machine cabinet. - Google Patents

Description

A. BRZS'NY.

TALKING MACHINE CABINET.

APPLICATION FILED JULI- IQ. 1910.

l 1 22,679 n Patented Dec. 29, 1914 *mL-(AIF b T QR-*1;* Il :Ff-W w l IHIII nu l: :1 l* i4, IE ""/37 V To all wlzora imag concern' UNITED STATES PATENT euries.

Y., Assrenon, ny .MES'NE ASSIGNMENTS, To

.VICTOR-TALKING MACHINE COMPANY, A CORPORATION 0F JERSEY. Y

IBe it known that I, ARMIN BRzsNY,a .subject of the .King of Hungary, anda resi.- dent of the borough of Manhattan, county,

certain new 'and useful Talking-Machine the qualityof thetones reproduced by theI machine and to provide for the ready-regulationof the loudness of ai reproduction. to simplify and- Further objects are cheapen the construction of afcabinet` con- V taining the sound reproducingmechanism and `sound amplifying and discharging mechanism. f"

To the abovelends asound amplifier is combined with the cabinet-:and witlrne or more resonating chambers so arrangedasl to affect the quality of the tones emanating 25 from the sound reproducing mechanism. The aboveand further objectsof the invention will bel pointed out more particularlyinthe following 'claims which should be read in connection with the raccompaliy ing drawings which form a part of this application, 'which are particularly referred to in the following specification, and in Wh'ich,-

' Y. Figure'l isaplanwiew of the cabinet 35 showing contained parts part' of coverbein broken away; Fig. 2 is a front elevation o the structure shown in Fig. 1 .with va partf the protecting screen for the liorn"bioke away; Fig. 3 is a vertical secticnfthrugh line IIT-III of Fig. 1 looking in the direction of the arrows Fig tion through line IV-#IV of Fig. 1,".whicl'1 corresponds with lineIII-IIL andlooking in the-direction of the arrows; and Fig.'5 is a detailview of the iris regulating. valve for the sound conduit. l A' Referring now more in detail to the draw- "ings, llindicates a cabinetof anygapproved construction whichl maybe supported ,by suitable feet 2; a horizontall part Sis' `prvided', whic is spe'rposedl bythe `,usual vrotatable table 4 for carrying a' reproduction disk 5.- The unal, springldriving mechanism forthe table@ is located-beneath th part 3 1n a suitable compartment 6, shown city, andState of New York, have invented- 4 is a vertical sec- TALKING-MAQINE CABINET.

p 5 Patented nec. 2e, asia.

Application ined July 19, 1910. serial nq; 572,662.

in dottedlines. The driving mechanism in the. drawings' is indicated by the winding Shaft Tprojecting laterally through the end Wall o-fl the cabinet.

partment 6 may be located drawers 8 for containing additional disk records.

9,indicates the sound box of any suitable construction connected in a suitable manner Beneath the comf withV the swiveled tubular arm 10 which is i mounted to swing horizontally on the upright tube 11 mounted on the horizontal partition r3. Extending laterally from and forming a continuing duct from the upright may be provided' as shown with a choke valve 13. This valve is the well'known iris shutter commonly used in photography. Its essential elements are illustrated in detail in Fig. 5 and comprise a series of pivoted plates. 14 arranged overlapping each other and so mounted that they may be caused to swing y'individually toward the center of the duct 12 thereby -more orless choking the passage therethrough. The provided to rotate the ring 16 having suitable en agement withthe plates 14 so as to cause :t eir movement inwardly' lor outp 11 is the sound conduit 12. 'This conduit 12 finger lip 15 is t wardly:4 t regulate the size' of the sound opening through the duct VChoke valves, as fheretofore employed in sound ductsfor/re'stricting the volume. of sound passing therethrough, have consisted usually a of apsysingle: sliding diaphragms or`similarideviceswhich have operated to direct the volume =of sound more or less directly.-againstE the sides of the conduit. Some of such devices operate' in such manner that the more the'passage is restricted the more directly are the sound waves brought into if contact with'- the= walls of the conduit. The irisv valve, -`off the general design illustrated, by reason of its maintenance-of the center of the sound opening continually in the'al'al center'of the conduit, entirely avoids this objection and has been found-to 'produce a more? pleasing modification of` the passing sounds-:1, 1 A coveul' may. be' hinged to the cabinet 1 as by hinges 18 so as'to give acces'sfto the tablev 4 and 'sound-'boi '9,- thejeproduced 'sound from which is conducted through the sound-conduit 12 the rear 1an-'Smau and ef the amplifier@ horn 2a resently to be inscribed?. inlet gestin-tithe @atmet at on@ side of the soun reproducing mechanism is a rectangular boxlike structure fitted with a soundampliiier or horn comprising a wooden structure of frusto-pyramidal shape. In the present construction the top wall 19 of this horn 20 is horizontal and forms also the topl partition of the cabinet 1 at this locality. The rear wall 21 of this horn is formed by the rear wall of the cabinet and is vertical as shown. The left hand side wall 22 extends rearwardly from the front of the cabinet diagonally to the right but is arranged in a vertical plane. The right hand side wall 23 is arranged symmetrically to the wall 22, likewise in a vertical plane. Thus, at the front, the lateral opening'at the mouth of the horn 20 corresponds in extent with the lateral distance between the right hand outer partition 24 of the cabinet 1 and the vertical partition 25 extending from front to rear of the cabinet to complete the boxlike structure, while the lateral space between the side walls 22 and 23 at the rear of the horn 20 is much less due to the inward convergence of the side walls 22 and 23. The lower edges 26 and 27 of the side walls 22 and 23 are upwardly beveled from the front to the rear, as indicated, and are suitably joined to the upper face of a rearwardly and upwardly' inclined lower partition wall 28 which extends completely across the space between the vertical partitions 24 and 25. The portion of this wall 28, de-r marked by the side walls 22 and 23 of ythe horn, Jforms the lower wall of the horn '20 while, at the same time, this partition wall 28 forms the upper partition for a resonating chamber 29 of truste-wedge shape.

This chamber 29 is open to the interior of the horn 20 through the sound-perforation 30 formed in the wall 28. The chamber 29 is closed at the rear `by the portion 31 of the rear partition wall of cabinet 1 and at the front bythe front partition wall 32 and at the bottom by the bottom closure or wall 33 of the cabinet 1. This bottom wall of the cabinet 1 is provided with a resilientl especially prepared sounding board panel 34.

In the preferred construction, the vertical extent of the resonating chamber 29 at the rear is twice its vertical extent in the front. This is indicated in the drawings. Conversely the vertical extent of the opening in the horn 2O is twice as great at the mouth-- of the horn as it is at the rear.

An additional resonating chamber -4is pro vided at the right of the right hand side wall 23 of the horn. This has communication with the interior of the horn through the opening 35. This second resonating chamber 36 isbounded bythe cabinet partition wall 24; the top wall 19; the right hand side wall 23 of the horn and the inclined wall 28; and is tapering wedge shaped. In Fi 4 there is 'indicated in dotted lines a soun ing board panel 37 mounted in the cabinet wall except proving the tones emanating from the amplier, the sound waves within said resonating chamber themselves being ampliiiedby contact with the sounding board 34 in the bottom thereof, and being projected by said sounding board through the opening 30 for intermingling with and modifying the waves in the upper compartment. The upper compartment is further divided by the vertical walls 22 and 23 at least one of which, as 23, is-formed with an aperture 35 similar to the aperture 30 for communication 'with the otherwise closed space between said Wall and the outer wall of the cabinet. The sounding board 37, in the outer cabinet wall, is 'for the same purpose and is disposed so as to bear the same relation to the aperture 35, that the sounding board 34 bears to the aperture 30, and the' projecting oi sound waves by the board 37 through the aperture 30 `not only causes said wavesto mingle with the normal waves in the amplifier, but also with the waves injected thereinto through the aperture 30 in such manner as to form a crossing and a mingling of sound waves, so that as they iinally emanate from the large open end of the amplifier or upper compartment they are devoid of the ringing harshnessv usually present in sound given off by machines of this class. The positions of the apertures 30 and 35, substantially centrally above the respective sounding. boards, t0- gether with the relative sizes and shapes of the openings, are so calculated as to best' accomplish the sought-for results. The mouth of the horn 20 may be permanently covered by la screen 38 fixed in position to the edges of the horn and serving to prevent the ingress of foreign objects. ,f

During the reproduction of sound by the reproducer or sound-box 9 the sound is conducted by the sound conduit 12 into the rea;`

of the horn or amplifier 20, by means of which, according to theY principles of resonance, the magnitude of the sound is ampliing an opening in a longitudinal side o'f said means facing said board. v 4

8. In a talking machine, the combination with a sounding-board, of tapering hollow sound conducting means arranged in proximity to said board but spaced therefrom, and havingoan opening in a longitudinal side of said means facing said board.

9. In a talking machine, the combination of acabinet having a sound chamber with a wall embodying a sounding-board, -sound reproducing means mounted on the cabinet outside of said chamber, and an ampliiier communicating with said reproducing means a nd inclosed within and communicating with said chamber and out of contact with and free from said sounding-board.

10. A talking machine comprising a cabinet, including a sounding-board forming part of an exterior wall thereof, and hollow,

sound conducting means arranged Within said cabinet and having an opening facing toward and spaced from said board and an open delivery end.

11. A talking machine comprising a sounding-board, and hollow sound conducting means having an opening facing toward and spaced from said board andan open delivery end.

r4facing toward 12.1In a talking machine, the combina'- tion with a sounding-board, of hollow sound conducting means spaced from said sound- `ing-board and having an opening facing said board and an open delivery end facing in a different direction.

13. A talking machine comprising a cabinet provided with a sounding-board and with an outlet in a wallother'fthan said sounding board, and hollow sound conducting means arranged Within said cabinet and having an opening arranged to vtransmit sound Waves toward said board, and an open end arranged to transmit sound waves through said outlet.

14.1A talking machine comprising a cabi,-

net provided with a sounding-board, and hollow sound conducting means arranged A within said cabinet .and having an openin and spaced from said boar l and an open delivery end facing in a different direction. In witness whereof, I have signed my name to this Specification, 4in the presence of two subscribing witnesses. ARMIN BORZSONY.

Witnesses: i

W. G. ALLEN, LEONARD DAY.

Images