U.S. Philips Corporation

Hermanus M Soemers

Marinus P Koster

Nicolaas Rudolf Kemper

Marinus J Dona

Willem Van Der Hoek

Johan F Caers

Joseph A Meertens

Justinus T Paquay

A transmission system comprising at least two wheels and a belt wound around the wheels with an unambiguous transmission ratio in that the transmission system is free from clearance and is comparatively stiff, while geometric errors, such as the polygon effect, and manufacturing errors and the occurrence of slip are neutralized in that the wheels are subdivided into segments, which can separately perform a tangential displacement. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings.

Transmission system, motor drive comprising such a transmission system

A manipulator having an end effector (1) displaceable by means of a four-rod mechanism, a comparatively light and stiff construction being obtained in that each of the rods (3,5,9,11) has a tubular support (73,79,159,181), which is secured by a bridge (147,149,169,191) to the bearing plate (87,93,119,193). The manipulator is particularly suitable for use in automatic mounting equipment.

Manipulator

The invention describes a method of accurately mounting a deflection unit on a cathode ray tube envelope. The deflection unit is provided with three V-shaped connecting devices and globally positioned with respect to metal mounting pads thermal compression bonded to the envelope. Three adjustable manipulators, each provided with a socket for engaging a semi-spherical part on one of the V apexes, accurately position the deflection unit on the envelope to obtain an accurate test pattern on the cathode ray tube screen. Finally the V-shaped devices are laser-welded to the mounting pads by laser devices incorporated with said manipulators.

Method of mounting a deflection unit on a cathode ray tube envelope and

A cathode ray tube display device which has an arrangement for mounting a deflection unit on the conical portion of a cathode ray tube envelope. In order to permit a rapid mounting of the deflection unit in a manner which provides shock resistance, and resistance temperature fluctuations in the deflection unit and the envelope, three V-shaped, sheet metal connecting devices connect the deflection unit to the conical portion of the envelope. The free ends of the devices are attached to the deflection unit in such a manner that the vertices of the devices are substantially tangential to the surface of the conical portion. After adjustment of the deflection unit the vertices of the devices are secured to the conical portion in such a manner that the connections are loaded with a shearing force.

Cathode ray tube with improved deflection unit mounting

The invention relates to a friction-disk transmission with a first shaft (19) and a coaxial second shaft (23) which are rotatable about a common axis of rotation (Z). The first shaft (19) is being coupled with a disk (1) which is tilted with respect to the axis of rotation (Z) and engages with friction a disk-shaped supporting member (11) secured to the second shaft (23) and rotatable about the axis of rotation (Z). The disk (1) is supported by an annular spring (3) and is tiltable about two axes (X, Y) which intersect each other perpendicularly and are located in a plane at right angles to the axis of rotation (Z). The tilting point (P) is located substantially at the point of intersection of the X-, Y- and Z-axes. The rotation of the disk (1) about the Z-axis is prevented by the annular spring (3). The friction-disk transmission can be used in apparatus requiring comparatively large transmission ratios, for example if a vacuum-tight separation is desired between the first and the second shaft.

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Eindhoven, Netherlands

Hermanus M Soemers