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Publication numberUS2438256 A
Publication typeGrant
Publication dateMar 23, 1948
Filing dateApr 27, 1945
Priority dateApr 27, 1945
Publication numberUS 2438256 A, US 2438256A, US-A-2438256, US2438256 A, US2438256A
InventorsStein John I
Original AssigneeStein John I
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Television cabinet
US 2438256 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

March 23, 1948. J, S 1N TELEVISION CABINET Filed April 27, 1945 Patented Man. 23., 1948 UENII'TED STATJES PATENT OFFICE 1 The present =inventionrelates 110 new and usefu1 improvements in television cabinets, and more particularly to a cabinet construction of convenient size anal shape adapted 1:0 conveniently iriclude elements adapted to the presenta- -tion 0f a ae1evision ir'nage andthe reproduction of the concomitantsound and 'to present a television picturescreen in convenient v1ew of an observer.

An important object of the invention is to provide Li rmeans i0r mepmduning ;the ;tehevision 11mage on a, screen in front of theabin@t togther with means for projecting Iheound waves accompanying the image a1: all sides of the screen so that the sound waves ifrom a loud speaker mounted in the nabinet will be uniformly dis- Dersed ab all sides .of the -screen in which the screen is .of maximum area for the cabinebsize anti the image .projector is positioned the great- .est distance .from the screen .permitted by the cabinet dimensionsto.pravidethe maximum im- :age magnification .betweenqtheprojector and the screen.

A further object ofizhe lnvention is to provide means for .pmjecting images fro'm the picture receiver at the lower portion of the cabinet up- Wardly and forvvardly in the cabinet for projction 0n the screen mounted in the freut of the cabinet.

A still further object of the invention is to provide magnifying lenses for the images together with adjustable means for said Jens.

Another object is 120 provide an apparatus of this character of simple anal practical construction, which is neat and attractive in appearance, relatively inexpensive so manufacture ancl otherwise we11 adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details -of construction and. operatiom as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming part hereof, wherein 1i1ie numerals refer to 1ike parts throughout, and in which:

Figure 1 is a front elevational view.

Figure 2 is a vertical sectional view.

Figure 3 is a. fragmentary sectional view cf the adjustable lens taken substantially on a 1ine 33 of Figure 2 and Figure 4 is a fragmentary vertica1 sectional view Of a modifiecl arrangement of the picture receiving end of the device.

Referring now 120 the drawing in detail, wherein for the purpose of illustration I have disclosed a. preferred embodiment; of the invention, the

numeral 5 designates an elongated, generally rectangular cabinet having a front Wall provided with an upper and a lower opening therein, a rear Wall, side Walls, a, top and a bottom. A

.combined receiving and magnifying unit 6 =is muunted in the lower front wall opening and inc1udes aloud. speaker 8 arranged to pr0ject the sound waves upwardly through an opening 9 in the top of the unit"6.

The opening 9 communicates With a chamber HI in the upper front porti0n 0f the cabinet behind the upper opening I l in the front wallof the cabinet, the opening II being adapted. be closed by hinged doors I2.

The lower front Wall opening i is disiposed above thebo.ttom of the cabinet and a television image projector 13 of conventional construction, and including a cathode ray taube, is mounted in the lower portion of the cabinet be1ow the opening1. From the projector I3 a taube I4 projects hofizontally rearwardly and terminats in a vertical extension i5 at 1'ts rear end.

A ground glass plate 15 is mounted at a 45 angle ab the junction of the tube M with the -vertical extension 15 and double plano-convex verging images .onto the ground glass plate I6.

The upper end of the extension 15 *is externally threaded. and adjustably receives an internally threaded collar I8, the collar having an internal annular groove 19 formed therein receiving pins or trunnions 20 projecting radially ab the edges 0f a nulls-eye lens 21, ehe Pins or trunnions being mounted for vertical adjustment in s1ots 22 in the side Walls of the extension I5.

A flared tube 23 is threadedly attached at its lovver end to the upper end of the extension I5 above the adjusting colla1 I8, the tube 23 extending vertically in the cabinet and communicates ab its upper end With a forwardly extending horizontal tubular extension 24 of substantia1ly rectangular shape in cross-section and having a television screen 25 mounted in its front end. The extension 2 projects through the rear Wall of the chamber In and terminateg substantially ab the center thereof.

In order to place the television image projector at the greatest possible distance from the picture screen the screen is mounted in one end of the cabinet, the projector in the opposite end and the combined receiving and amplifying unit is mounted in the intermediate space between them. This necessitates carrying the 1ight rays from the projector around the receiver from the projector to the screen as the projector images are magnified in the distance between the projector and the screen.

A reticulated or apertured screen 26 preferab1y of foraminous materia] is connected a1: its inner edge to the top, bottom and sides of the Screen 25 and is flared forwardly and connected ab its outer edges 120 the opening Il in the iront of the cabinet.

An oblong mirror or reflector 21 1s mounted at' a 45 angle at the upper rear edge of the t3ube 23 and a1: the inner end of the forwardly projecting extension 24.

Accordingly, images from projected upwardly through the lens 2i ontu (glyxe the pictutg-reoelvk-I ing unit I3 will be projected rearwardly in thetube 14 upon the ground glass plate landjqhen nected a1: one end to the screen and connected at its other end to the picture receiver for projecting images from the picture receiver onto the screen.

2. A television cabinet including a sound reoeiver and a picture recelver mounted in the cablnet below the sound receiver, said cabinet havin an op i in it i o a s und C ber in the cabinot, am]. riaarwardly of t he opening, a picture screen mounted in the sound chamber with its edges in spaced relation from the Walls of the chamber and inwardly of the open- Ing, a reoiculated screen around the edge cf the picture screen and inclined 120 the plane thereof and 9xtcending to the opening to support said scr eenfpom said cabinet, a tubular member ex- Wenr ling Ir0m the ioicture receiver 120 the picture mirror 21 anti then projected forwardly onto the screen 25. The lenses1'l and. 21 magnify the Amages onto the screen and the1ens 21 ma.y be

adjusted bymeans of:the collar I8. There is thus pr0vided an image reflectingand magnifying means extending from the projector to the screen and around the recelving and amplifying mit. o

In Figure 4 of the drawing, the picture recelv- 1ng unit 21 is shown supported in a vertical position immediately below the tube 28 having the fixed lenses 29 and adjustable 1ens 80 therein. Otherwise the nonstruction is slmilar to that 'heretofore described.

Havlng thus described the inVentiori} whgt 1 claimedis:

1. In combination, a generally rectangular -cabinet, areceiving and amplifylng un1t in said oabinet between the end portions thereof disposed ab the front of said cabinet, said cabinet having a;n'opening in its front Wall above said unit, a sound chamber in the cabinet behind the said opening and having communication with said unit, a picture screen mounted in said sound 'chamber With*its Edgs spaced inwardly from the*edges ofsaid opening, a retlculatea screen around* said screen and inclined to the plane thereof to support said screen from said cabi- -net while passing sound. waves therethmugh, a J:elevision image projector1n the bottom portion of said cabinet anda tubular passage cous'creen ahd including upper and lower horizontal portions and an intermediaoe vertical por- -tion, said upper horizontal portion being counected the picture screen and said lower horizonta1 portionbeing connected to the picturere- -ceiver, refiectors disposed angularly a1, the junction of the horizontal portions w1th the vertical portions, said vertical portion of the tubular member fiaring outwardly and upwardly. JOHN I. STEIN.

REFERENCES CIT ED Thefollowing referencs are of record1n the file of th1s patent: 7

- UNI'IED STATES PATENTS Great Britain1.----- Beo. 6, 1936

Patent Citations
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2537173 *Feb 19, 1948Jan 9, 1951Rauland CorpTelevision intercommunication system
US2700065 *Sep 15, 1950Jan 18, 1955Evans Martin ETelevision receiving apparatus
US2759178 *May 15, 1952Aug 14, 1956Rose Joseph KCabinet
US4177484 *May 16, 1977Dec 4, 1979Agar International Ltd.Large screen television
US4281352 *Mar 23, 1979Jul 28, 1981Hoffman Andrew ECompact projection television system
US4359758 *Apr 5, 1979Nov 16, 1982George TeachersonHolographic television
US4798294 *Aug 31, 1987Jan 17, 1989North American Philips CorpShipping tray assembly for an article having casters
US4998283 *Jul 17, 1990Mar 5, 1991Matsushita Electric Industrial Co., Ltd.Screen device
US5223936 *Mar 13, 1992Jun 29, 1993U.S. Philips CorporationPicture display and video signal processing circuit
US6914772 *Jun 16, 2003Jul 5, 2005Multimedia Telesys, Inc.Video conference system enclosure
US20040252184 *Jun 16, 2003Dec 16, 2004Hesse Thomas H.Video visitation station
US20040252447 *Jun 16, 2003Dec 16, 2004Hesse Thomas H.Video conference system enclosure
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U.S. Classification348/787, 312/7.2, D14/128, 348/E05.13
International ClassificationH04N5/64
Cooperative ClassificationH04N5/642
European ClassificationH04N5/64S