Apparatus for monitoring and controlling the operation of a dual

Details Apparatus for monitoring and controlling the operation of a dual Apparatus for monitoring and controlling the operation of a dual

1978-01-23

1980-01-22

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

356373, 356395, 425150, 425171, 425167, 425173, 425352, 324 99R, 324121R, 324 88, 324 73, 324102, 324 71R, 324 73AD, 73465, 73462, 73791, 29 33, 250237G, B30B 1102, B30B 1520

Patent

active

041848276

ABSTRACT:
Apparatus for monitoring and controlling the operation of a dual platen press used in the manufacture of nuclear fuel pellets is disclosed. The apparatus includes means for indicating the displacements of both platens and imposing the displacements of the platens on orthogonal axes such that the displacements jointly control the motion of a point which traces a lissajous figure representative of the displacement and relative velocity of the press platens. A second lissajous figure representing the desired platen movements and relative velocity may be superimposed on the first lissajous figure, differences between the first and second lissajous figures indicating deviations from the desired operation of the press. Alternately, a press operator may simply use the first lissajous figure constructed from the actual platen displacements to analyze the operation of the press. The completion of preselected portions of the first lissajous figure may be detected and used to trigger subsequent press operations. Mechanical, optical and electrical embodiments of devices for implementing the invention are disclosed.

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