Videocolor

Daniel Cote

Disclosed is a machine for the implanting of a cathode in an eyelet of a cathode-ray tube gun. This machine has a gun-supporting device which is movable along the axis of the gun, a cathode-supporting device positioning the cathode along the axis of the gun and a sensor with retractile rod which works together with a first detector, giving the position of the cathode when the rod rests on the grid G1, said sensor being capable of being shifted in a direction perpendicular to the axis of the gun. It further has a gauge rod, with a calibrated length, which rests on the grid G2 and ends at the side opposite to the eyelet, with a second detector recording the position of the gauge rod and a control device determining the shift of the gun-supporting device on the basis of the measurements made by the two detectors.

Machines for the implantation of cathodes in cathode-ray tube guns

The cathode-inserting machine of the invention has a gun carriage, movable between two stops under the effect of a jack, a retractable sensor and a cathode support. The overall length of the sensor is equal to the travel of the carriage. It is thus enough to measure the distance between the sensor and the cathode when the carriage is at the rear stop and then to move it forward to the front stop in order to position the cathode exactly in its eyelet.

Machine for inserting cathodes in cathode tube guns

The machine of the invention comprises a movable gun support, a calibrated gage rod supported on grid 2, a measuring device to determine the distance between the end of the rod and the cathode and a device to control the gun support.

Cathode-inserting machine for cathode-ray tube

The control device according to the invention comprises three controlling elements secured to a structure or frame and each comprising a fixed guide, a movable tubular socket and a feeler rod or probe connected to a core of a displacement sensor of which the body is integral with the tubular socket, the tubular socket and the rod being applied by springs against G2 and the cathode respectively.

Device for automatic simultaneous controlling of the distance between

The casing of the jack is divided into two cylinders by a cross partition, with a first piston which moves in one of the cylinders and a second piston, forming two parts, linked by a rod which crosses the partition to its first part which moves in the first cylinder-shaped piston and its second part which moves in the second cylinder of the jack. The fluid is conveyed selectively either to the cylinder formed by the first piston or to the second cylinder which communicates with the first cylinder through holes drilled in the partition.

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Ampuis Condrieu, France

Daniel Cote