US2109431A - Radio apparatus - Google Patents
Radio apparatus Download PDFInfo
- Publication number
- US2109431A US2109431A US141550A US14155037A US2109431A US 2109431 A US2109431 A US 2109431A US 141550 A US141550 A US 141550A US 14155037 A US14155037 A US 14155037A US 2109431 A US2109431 A US 2109431A
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- US
- United States
- Prior art keywords
- cabinet
- board
- radio apparatus
- wall
- respect
- 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
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-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/08—Constructional details, e.g. cabinet
Definitions
- the invention forming the subject matter of this application relates to sound producing cabinets; and, particularly to cabinets adapted to house radio receiving sets, electric phonographs and the like.
- This invention is particularly adapted for use in radio apparatus including a loud speaker, and a receiving set mounted in the same cabinet; and has for its principal object the provision of a mount for the loud speaker, whereby the transmission sound vibrations from the speaker to the receiving set is practically eliminated.
- Another object of the invention is to provide a sound producing cabinet with a baflle board pivoted about a substantially horizontal axis to direct the sounds emanating from the cabinet at any desired angle with respect to a horizontal plane.
- a further object of the invention is to provide a supporting base for the receiver cabinet as a whole, whereby the cabinet may be rotated about a substantially vertical axis.
- Figure 1 is a perspective view of one form of the invention as embodied in a radio receiver
- Figure 2 is a sectional elevation illustrating a means for angularly adjusting a baffle board mount for the loud speaker
- Figure 3 is a horizontal section taken on the line 33 of Figure 2;
- Figure 4 is a detail of a means for mounting the cabinet for rotation about a substantially vertical axis.
- a baflie-board 30 is hinged to swing about its upper edge on the front wall of the cabinet 3
- the baffle-board comprises the frame 32 covered by the usual screen 33, and having the transverse brace 34 secured to the top and bottom of the frame 30 to form a support for the loud speaker 35.
- Side plates 36 and 31 are secured to the opposite sides of the frame 32.
- the side plate 31 has an arcuate rack 38 suitably secured thereto. This rack is in mesh with the spur gear 39 fixed on the inner end of a shaft 40 which is journaled Mcdonald, signor of one-half to Washington, D. 0., as- Cecil David Kaufmann,
- the shaft 40 projects through this side wall and has a knob 42 fixed to its outer end to facilitate manual adjustment of the shaft 40 for the purpose of giving the battle-board 30 the desired inclination, with respect to the front wall of the cabinet.
- This invention is designed, not only to determine the direction of the vibrations with respect to horizontal emanating from the cabinet, but is also designed to determine the direction of these vibrations with respect to any vertical plane.
- the cabinet as a whole is mounted to rotate about a substantially vertical axis on the base plate 43, which is provided at its center with an aperture for the pivot bolt 44, extending through the bottom of the cabinet.
- the upper face of the base plate 44 and the bottom wall 45 of the cabinet may be provided with the cooperating race elements 46 and 41 of a ball bearing to decrease the friction between the base and the cabinet.
- the adjustment of the baflle-board about a horizontal axis, and that of the cabinet about a vertical axis provide a universal adjustment for projecting the sound waves in any desired direction.
- a cabinet having an opening in one wall thereof, a balile board normally fitting in said opening hinged at one edge to said wall to swing outwardly with respect to said wall whereby said bafile board is altogether outside of said cabinet in all angular positions of swing, wings at the lateral edges of said bafile board and movable therewith, closing the angle between said bafile board and cabinet in any position of swing of said baffle board, forming extensions of the sounding box constituted by said cabinet, means for adjusting the baflle board at any desired angle, and a sound producer mounted on the inner side of said baffle board and movable therewith.
Description
Feb. 22, 1938.
3v, anunnnnlllim I R. W. MCDONALD RADIO APPARATUS Filed May 8, 1937 JF VV. McimJa/d Patented Feb. 22, 1938 PATENT OFFICE 2,109,431 RADIO APPARATUS Raymond W.
Washington, D. 0. Application May 8,
1 Claim.
The invention forming the subject matter of this application relates to sound producing cabinets; and, particularly to cabinets adapted to house radio receiving sets, electric phonographs and the like.
This invention is particularly adapted for use in radio apparatus including a loud speaker, and a receiving set mounted in the same cabinet; and has for its principal object the provision of a mount for the loud speaker, whereby the transmission sound vibrations from the speaker to the receiving set is practically eliminated.
Another object of the invention is to provide a sound producing cabinet with a baflle board pivoted about a substantially horizontal axis to direct the sounds emanating from the cabinet at any desired angle with respect to a horizontal plane.
' A further object of the invention, is to provide a supporting base for the receiver cabinet as a whole, whereby the cabinet may be rotated about a substantially vertical axis.
In the drawing:
Figure 1 is a perspective view of one form of the invention as embodied in a radio receiver;
Figure 2 is a sectional elevation illustrating a means for angularly adjusting a baffle board mount for the loud speaker;
Figure 3 is a horizontal section taken on the line 33 of Figure 2;
Figure 4 is a detail of a means for mounting the cabinet for rotation about a substantially vertical axis.
Referring to the several figures, a baflie-board 30 is hinged to swing about its upper edge on the front wall of the cabinet 3| In this construction the baffle-board comprises the frame 32 covered by the usual screen 33, and having the transverse brace 34 secured to the top and bottom of the frame 30 to form a support for the loud speaker 35. Side plates 36 and 31 are secured to the opposite sides of the frame 32. The side plate 31 has an arcuate rack 38 suitably secured thereto. This rack is in mesh with the spur gear 39 fixed on the inner end of a shaft 40 which is journaled Mcdonald, signor of one-half to Washington, D. 0., as- Cecil David Kaufmann,
1931, Serial No. 141,550
in a bracket 4| suitably secured to the side wall of the cabinet. The shaft 40 projects through this side wall and has a knob 42 fixed to its outer end to facilitate manual adjustment of the shaft 40 for the purpose of giving the battle-board 30 the desired inclination, with respect to the front wall of the cabinet.
This invention is designed, not only to determine the direction of the vibrations with respect to horizontal emanating from the cabinet, but is also designed to determine the direction of these vibrations with respect to any vertical plane. For this purpose the cabinet as a whole is mounted to rotate about a substantially vertical axis on the base plate 43, which is provided at its center with an aperture for the pivot bolt 44, extending through the bottom of the cabinet. The upper face of the base plate 44 and the bottom wall 45 of the cabinet may be provided with the cooperating race elements 46 and 41 of a ball bearing to decrease the friction between the base and the cabinet. The adjustment of the baflle-board about a horizontal axis, and that of the cabinet about a vertical axis provide a universal adjustment for projecting the sound waves in any desired direction.
What I claim is:
In acoustic apparatus, a cabinet having an opening in one wall thereof, a balile board normally fitting in said opening hinged at one edge to said wall to swing outwardly with respect to said wall whereby said bafile board is altogether outside of said cabinet in all angular positions of swing, wings at the lateral edges of said bafile board and movable therewith, closing the angle between said bafile board and cabinet in any position of swing of said baffle board, forming extensions of the sounding box constituted by said cabinet, means for adjusting the baflle board at any desired angle, and a sound producer mounted on the inner side of said baffle board and movable therewith.
RAYMOND W. MCDONALD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US141550A US2109431A (en) | 1937-05-08 | 1937-05-08 | Radio apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US141550A US2109431A (en) | 1937-05-08 | 1937-05-08 | Radio apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US2109431A true US2109431A (en) | 1938-02-22 |
Family
ID=22496181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US141550A Expired - Lifetime US2109431A (en) | 1937-05-08 | 1937-05-08 | Radio apparatus |
Country Status (1)
Country | Link |
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US (1) | US2109431A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604536A (en) * | 1946-12-27 | 1952-07-22 | Joseph K Rose | Television cabinet having viewing tube housing rotatable about horizontal axis |
US2649164A (en) * | 1949-12-29 | 1953-08-18 | Rca Corp | Cabinet for sound translating apparatus |
US2722990A (en) * | 1949-11-08 | 1955-11-08 | Decca Record Co Ltd | Loudspeaker assemblies |
US2789158A (en) * | 1953-05-14 | 1957-04-16 | Zenith Radio Corp | Television cabinet with retractable speaker on top wall |
US2805411A (en) * | 1946-12-27 | 1957-09-03 | Joseph K Rose | Television receiver cabinet |
US3179202A (en) * | 1963-04-15 | 1965-04-20 | Argos Products Company Inc | Enclosure for focusing a loudspeaker sound column |
US3347607A (en) * | 1962-09-12 | 1967-10-17 | Walter B Udell | Cabinet construction |
US3379276A (en) * | 1966-12-02 | 1968-04-23 | Adam D. Goettl | Speaker installation means |
US3754618A (en) * | 1970-11-30 | 1973-08-28 | Pioneer Electronic Corp | Speaker system |
US4133975A (en) * | 1975-04-02 | 1979-01-09 | Bose Corporation | Loudspeaker system with broad image source with directionality control for the tweeter |
US5040241A (en) * | 1989-05-22 | 1991-08-13 | Ronald Davison | Clock, radio, lighter, light display cabinet |
US20020118853A1 (en) * | 2000-10-23 | 2002-08-29 | Gunnar Flentje | Loudspeaker enclosure with adjustable baffle board |
US20030218406A1 (en) * | 2001-03-28 | 2003-11-27 | Sears Intellectual Property Co. | Multiple configuration shelving system for displaying audio visual components |
US20040135476A1 (en) * | 2003-01-07 | 2004-07-15 | Alan Gillengerten | Audio visual system and apparatus |
US20050146251A1 (en) * | 2003-09-17 | 2005-07-07 | Alan Gillengerten | Audio visual system |
-
1937
- 1937-05-08 US US141550A patent/US2109431A/en not_active Expired - Lifetime
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604536A (en) * | 1946-12-27 | 1952-07-22 | Joseph K Rose | Television cabinet having viewing tube housing rotatable about horizontal axis |
US2805411A (en) * | 1946-12-27 | 1957-09-03 | Joseph K Rose | Television receiver cabinet |
US2722990A (en) * | 1949-11-08 | 1955-11-08 | Decca Record Co Ltd | Loudspeaker assemblies |
US2649164A (en) * | 1949-12-29 | 1953-08-18 | Rca Corp | Cabinet for sound translating apparatus |
US2789158A (en) * | 1953-05-14 | 1957-04-16 | Zenith Radio Corp | Television cabinet with retractable speaker on top wall |
US3347607A (en) * | 1962-09-12 | 1967-10-17 | Walter B Udell | Cabinet construction |
US3179202A (en) * | 1963-04-15 | 1965-04-20 | Argos Products Company Inc | Enclosure for focusing a loudspeaker sound column |
US3379276A (en) * | 1966-12-02 | 1968-04-23 | Adam D. Goettl | Speaker installation means |
US3754618A (en) * | 1970-11-30 | 1973-08-28 | Pioneer Electronic Corp | Speaker system |
US4133975A (en) * | 1975-04-02 | 1979-01-09 | Bose Corporation | Loudspeaker system with broad image source with directionality control for the tweeter |
US5040241A (en) * | 1989-05-22 | 1991-08-13 | Ronald Davison | Clock, radio, lighter, light display cabinet |
US20020118853A1 (en) * | 2000-10-23 | 2002-08-29 | Gunnar Flentje | Loudspeaker enclosure with adjustable baffle board |
US20030218406A1 (en) * | 2001-03-28 | 2003-11-27 | Sears Intellectual Property Co. | Multiple configuration shelving system for displaying audio visual components |
US7334852B2 (en) * | 2001-03-28 | 2008-02-26 | Sears Brands, L.L.C. | Multiple configuration shelving system for displaying audio visual components |
US20040135476A1 (en) * | 2003-01-07 | 2004-07-15 | Alan Gillengerten | Audio visual system and apparatus |
US20050146251A1 (en) * | 2003-09-17 | 2005-07-07 | Alan Gillengerten | Audio visual system |
US6997525B2 (en) | 2003-09-17 | 2006-02-14 | Alan Gillengerten | Audio visual system |
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