Measuring and testing – Frictional resistance – coefficient or characteristics – Lubricant testing
Patent
1978-06-06
1979-10-02
Goldberg, Gerald
Measuring and testing
Frictional resistance, coefficient or characteristics
Lubricant testing
73 64, G01N 1900, G01N 3330
Patent
active
041693680
ABSTRACT:
A device is disclosed for indicating the lubricating quality of a lubricating oil for a machine. The device comprises a frame rotatably mounting a shaft. The rotatable shaft has a journal for rotation with the shaft. A housing having an internal cavity is rottably mounted on the rotatable shaft with the journal disposed within the internal cavity of the housing. A journal-engaging member is mounted in the internal cavity for engaging the journal to establish a normal force between the journal-engaging member and the journal. An oil outlet and an oil inlet communicate with the internal cavity in the housing. The oil inlet and oil outlet are connected to a machine for circulating lubricating oil between the housing and the machine whereby the lubricating oil is directed between the journal and the journal-engaging member. A retarding means retards the rotation of the housing relative to the frame with indicating means indicating the rotational position of the housing relative to the frame to determine the quality of the lubricating oil from the torque transfer of the rotating shaft to the housing by friction between the journal and the journal-engaging means.
REFERENCES:
patent: 134229 (1872-12-01), Thurston
patent: 226639 (1880-04-01), Waite
patent: 230158 (1880-07-01), Thurston
patent: 332974 (1885-12-01), Thurston
patent: 1490603 (1924-04-01), Elverson
Goldberg Gerald
Roskos Joseph W.
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