Sewing machine lubrication system and pump therefor

Details Sewing machine lubrication system and pump therefor Sewing machine lubrication system and pump therefor

1974-12-30

1976-09-21

Krizmanich, George H.

Sewing

Elements

Lubricating

184 615, 415 90, D05B 7100

Patent

active

039812570

ABSTRACT:
A shaft driven overedge sewing machine is lubricated by a pump mounted on a driven shaft which supplies lubricating oil from the machine's sump through an oil passage in the pump mounting shaft. The pump body is mounted for free rotation relative to the shaft and normally retained against rotation, upon rotation of the shaft, and a spring pressed plunger carried by the pump body cooperates with an eccentric cam surface on the shaft to pump oil from the machine sump into the oil passage in the driven shaft to lubricate shaft bearings and the like.

REFERENCES:
patent: 2351431 (1944-06-01), Irons
patent: 2879733 (1959-03-01), Pierce
patent: 3272164 (1966-09-01), Keller
patent: 3883262 (1975-05-01), Schmedtkord et al.

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