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Metal Working

Swivel-tilt-mounting-device-for-a-cathode-ray-tube

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Swivel/tilt mounting device for a cathode ray tube

Details

Inventors: Sweere, Harry C.;
Assignee:
Primary Examiner: Britts; Ramon S.
Assistant Examiner: Lechok; Sarah A.
Attorney, Agent or Firm: Williamson, Bains, Moore & Hansen

A device designed for mounting cathode ray tube has the ability to both tilt and swivel in order to provide a most advantageous angle at a working station. A cross-piece is rotatably mounted in a base and a mounting plate is designed to tilt about the cross-piece, there being a frictional engagement between the cross-piece and a portion of the mounting plate. This frictional engagement has provision for varying the amount of friction so as to lock or allow varying difficulty of tilt depending on the weight of the device to be mounted and the desire of the operator. The device is designed for one-handed operation.

DETAILED DESCRIPTION In the instant invention, a base plate carries a rotatably mounted cross-piece thereon which may be an automotive U-joint or similar design.
One arm of the cross-piece is carried in the base while the upper arm carries a first friction block which is desireably constructed of ultra-high molecular weight polyethylene.
Two side plates are mounted to the two cross-arms of the cross-piece and rotate about the cross-arms.
A pair of guide bars are provided which pass from one side plate to the other and carry, slideably mounted thereon, two steel friction plates.
Each friction plate presses against one side of the friction block.
The two guide rods are located on either side of the friction block and serve to limit the tilting travel of the side plates and product which is to be mounted.
A number of springs are located between each friction plate and its associated side plate serving to urge the friction plate against the friction block.
Springs are located in counter-sunk depressions in the side plates to positively locate the springs.
The number of springs may be varied according to the weight of the product to be mounted.
A stop bolt is threadingly engaged into one side plate and serves to limit the travel of one of the friction plates.
The other side plate carries a clamping lever which is threadingly engaged with the side plate and which bears against the other friction plate.
By adjusting the clamping lever, the force urging the one friction plate against the friction block is varied and the amount of force required for tilting is varied from extremely light to a solid lock.
The block, as mentioned previously is constructed of ultra-high molecular weight polyethylene and in conjunction with the steel friction plates provides a unique hydraulic-like feel to the frictional braking mechanism.
These and other objects and advantages of my invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views

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