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Read-write head back-up member
What is claimed is: 1. A method of maintaining a document proximal an operating station comprising the steps of: providing a back-up member having spaced deformable ...
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Steam generating system including means for reinitiating the operation of a steam bound boiler feed pump
OF THE EMBODIMENTS During the course of this description, like numerals will be used to refer to like elements in the different drawings. A water feeder type of steam ...
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Apparatus for the controlled supply of cryogenic fluid
OF A PREFERRED EMBODIMENT The depicted embodiment of apparatus according to the invention, which is intended to supply the liquid phase of a cryogenic fluid which is ...
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Automatic ventilator
An automatic temperature responsive damper assembly for use within the conduit of a ventilating system designed to exhaust the air in a confined space to the atmosphere ...
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Method and apparatus for adjustably supporting a pipeline relative to a lay vessel
Brief Overview Referring now to FIGS. 1 and 2 of the drawings, examples of support shoes of the prior art can be contrasted with support shoes of the present invention ...
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Stock-rail fastening for switches and crossings of railway track installations
I claim: 1. A stock rail fastening for switches of railway track installations, in which a stock rail having a first flange and a second flange rests on a baseplate, and ...
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Power supply unit for a plasma plant
1. A power supply unit for a plasma plant, in particular for a plasma spraying plant, comprising an isolating transformer for connection to the main supply, a current ...
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Circuit having improved firing angle symmetry for ignition pulses in the control of a multipulse rectifier
According to the invention, this problem is solved in a circuit having the following elements: (a) means for forming a control signal sequence from the ignition (firing) ...
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Power converter apparatus
What is claimed is: 1. A power converter apparatus for effecting power conversion between an a.c. system and a d.c. system by using a full-wave bridge circuit in which ...
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Power factor correction for variable speed drive
The system employs means to vary the amplitude of the voltage in the positive and negative rails to improve the power factor. An amplitude switch is located in one of ...
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