US2643373A - Mounting of cathode-ray tubes for television reception - Google Patents

Description

M. J- MORRIS June 23, 1953- MOUNTING OF CATHODE-RAY TUBES FOR TELEVISION RECEPTION Filed July 21, 1950 2 Sheets-Sheet l flllllllil.

" INVENTOR. MneaA/ J. Mame/s M. J. MORRIS June 23, 1953 MOUNTING OF CATHODE-RAY TUBES FOR TELEVISION RECEPTION Filed July 21, 1950 INVENTOR.

2 Sheets-Sheet 2 ArmkA y Patented June 23, 1953 MOUNTING'OF CATHODE-RAY TUBES FOR :TELEVISION RECEPTION Myron J. Morris, Yonkers, N. Y., assignor to Tele King Corporation, a corporation of New York Application July 21, 1950, Serial N 0. 175,216

This invention relates to a cathode ray tube mounting and more specifically to the mounting of a cathode ray tube in a television receiver.

One of the difiiculties in present-day manufacture of television receivers on a mass production scale is the adaptation of a given television chassis to different types and sizes of cathode ray tube or kinescope.

One of the objects of the invention is a telescope mounting for the neck of the cathode ray tube, which is supported on the top of a chassis to permit horizontal as well as vertical adjustment corresponding to cathode ray tubes of different diameters and diiferent lengths of neck.

Another object of this invention is a neck support for a cathode ray tube which is hollow so as to provide electric screening for circuit elements arranged therein in order to save space on the top of the chassis.

Still another object of the invention is an arrangement of hollow sheet metal elements disposed telescopically, forming an adjustable support for the neck of a cathode ray tube and open on one side to permit placement of circuit elements therein.

A further and more specific object of the invention is a telescopic mounting arranged to form a support for the neck of a cathode ray tube mounted on the rear side of a chassis, adjustable in height, while the screen carrying front portion of the cathode ray tube is mounted in relative fixed position on the front side of the chassis.

A more specific object of the invention is to support or enclose at least partially in the top element of a telescopic neck mount the deflection elements of the cathode ray tube such as magnetic coils, while the bottom element encloses at least partially certain circuit elements supported on the chassis and electrically screened from certain other circuit elements arranged on the chassis.

Still another object of the invention is a mounting system which permits the alternative mounting of quadrangular and round type cathode ray tubes on one and the same chassis.

These and other objects of the invention will be more fully apparent from the drawings enclosed herewith in which Figures 1 and 2 represent front and side views, respectively, of a cathode ray tube mounting embodying certain features of the invention; Figures 3 and 4 are corresponding top and rear views.

In Figures 1, 2, 3, and 4, part I represents a cathode ray tube of quadrangular type. The

1 Claim. (Cl. 340-367) front section 2 of tube I is mounted on rubber cushion 3 and supported on a bridge portion 5 of sheet metal or the like, which in turn is attached to a metal chassis 6 containing circuit elements arranged inside and outside thereof in a manner well known in the art.

The neck portion 1 of tube l is surrounded by a deflection coil system 8 which is adjustably mounted at points schematically indicated in Figure 4 at 9, 10, 11, and in a manner immaterial for the invention, on supporting plate I2, which in turn is attached to the flanges of a U cross section outer telescope top member I3, which is adjustably placed over and attached to another inner telescopic bottom member consisting of sheet metal flaps l4, I5 having flanges attached to the top I8 of chassis 6 by screws or in any other appropriate manner. In this way, it is possible to adapt the height of the upper telescopic support I3 to necks of cathode ray tubes of different heights and at the same time to adjust the horizontal position of the lower telescopic supports I4, I5 along the top I8 of chassis 6 to tube necks of different lengths without being required to change the chassis and the system of mounting.

The invention also permits of placing a round type cathode ray tube on chassis 6. This is made possible by the provision of angular metal pieces I9, 20 (Figure 1), under bridge 5, which are welded, riveted, or otherwise permanently attached to metal top I8.

By inserting rubber cushions as schematically indicated in dotted lines at 2|, 22, a round type cathode ray tube will be supported on chassis 6, as schematically indicated at 23, without substantially changing the construction of the chas- SIS.

The telescoping members l3, I4, and I5 form a hollow structure in order to permit the placing therein of circuit elements such as tubes or condensers schematically indicated at 23, 24, and 25 in Figure 1. This is to save space on the top I8 of chassis 6, and also to afford electrical protection for elements 23, 24, and 25 by the screening action of the metal wall formed by the lower telescope members I4, I5.

In order better to fix the relative position in height of members l3, I4, I5, the side flaps of I3 are provided with inward dimples '26 fitting into any one of pairs of holes or receivers 21 (Figure 2) of side walls I4, l5. Connections 26, 2! permit accurate setting of U-shaped member I3 on side walls I4, I5, after which member I3 may be permanently attached to side walls l4, l5 by screws connecting flanges 28 to defiection support plate 12 or in any other appropriate manner.

Attachment of the front part 2 of tube is secured by a flexible band 29 extending over the top of tube front 2 and attached with its ends to the sides of bridge 5. The neck portion of tube I is supported on and protected by a conical rubber sleeve 30 supported in a front opening of top telescope member 13.

The invention, of course, is also applicable to the mounting of cathode ray tubes for radar purposes and generally to any other types or electronic discharge tube Without exceeding the scope of this invention.

I claim:

In a cathode ray tube supporting structure for a television receiver, a chassis and a pair of telescoping members, one supported on the chassis and the other supported on the first one in several vertically adjustable positions for supporting the cathode ray tube at adjustable heights, said chassis at its front portion having permanently attached thereto angular ele' ments permitting support of a round screen cathode ray tube, and a bridge element extending over said angular elements and also attached to said chassis at the sides thereof for supporting a quadrangular screen cathode ray tube, said first telescoping member being also adjustable along said chassis in a horizontal direction.

MYRO-N J. MORRIS.

References Citedin the file of this patent UNITED STATES PATENTS

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