Sewing – Elements – Lubricating
Patent
1979-07-16
1981-01-20
Schroeder, Werner H.
Sewing
Elements
Lubricating
184 615, D05B 7100
Patent
active
042455758
ABSTRACT:
This disclosure relates to a sewing machine lubrication system including positive displacement mechanisms adapted to transmit lubricant under pressure to the operating mechanisms of the machines and for transferring lubricant collected in non-drainable areas of the machine to the lubricant reservoir. Arranged in combination with the displacement mechanisms is a filtering/distribution assembly which serves to individually and selectively supply a relatively small, but sufficient quantity of lubricant to the operating mechanisms according to the requirements thereof. The present invention further provides a pressure relief valve assembly for selectively regulating the pressure in the lubrication system.
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Hsiao James C.
Ishikawa Yoichiro
Falik Andrew M.
Harbst John W.
Schaerli John A.
Schroeder Werner H.
Union Special Corporation
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