Rotational speed to impulse frequency converter
AssigneeVDO Adolf Schindling AG
InventorAlois Kreuz
Life of this patent
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Abstract
An apparatus for converting the rotational speed of a shaft, particularly of the driving shaft of a log propeller shaft into a proportional impulse frequency is provided with a rotary permanent magnet, means to couple it with the shaft, and at least one magnetically actuated switch positioned within the effective range of the permanent magnet, these electrical elements being arranged in a liquidproof housing of an improved construction simultaneously contributing to an optimum space saving arrangement of all parts involved.
Claims9
A rotational shaft-speed to impulse-frequency converter, such as for converting the speed of a driving underwater shaft of log into a proportional impulse frequency, comprising:
- a. a housing with a shaft orifice with a driven shaft, with means for coupling with an outside driving shaft;
- b. a cup-shaped watertight insert mounted within said housing having a base and a cover with a watertight cable orifice and a cable extending therethrough;
- c. a permanent magnet mounted for rotation on the driven shaft adjacent the said base of said insert;
- d. electrical components, including at least one magnetically actuated switch on the inside of said base of said insert within an effective range of said magnet;
- e. said housing, said insert and said cover comprising mounting means for a watertight mating mounting of their respective peripheries. said housing having an open top;
- said mounting means comprising:
- a ring shoulder in said housing;
- said insert supported by said ring shoulder;
- and a collar ring engaging the outside of said cover and holding said insert in said housing.
Dependencies are inferred from the claim text.