CHAINSAW OIL PUMP

1291035 Chain saw lubrication F DAVISON 1 May 1971 12572/71 Heading B5L [Also in Division F1] A pump for supplying lubricating oil to the cutting chain of a chain saw comprises a spring- loaded piston F reciprocated by an eccentric or cam B on the chain saw engine crank-shaft A, the piston controlli...

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Bibliographic Details
Main Author FRANK DAVISON
Format Patent
LanguageEnglish
Published 27.09.1972
Subjects
BLASTING
COMPONENTS OR ACCESSORIES THEREFOR
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
LUBRICATING
MECHANICAL ENGINEERING
NAILING OR STAPLING MACHINES IN GENERAL
PERFORMING OPERATIONS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
SAWS FOR WOOD OR SIMILAR MATERIAL
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Summary:1291035 Chain saw lubrication F DAVISON 1 May 1971 12572/71 Heading B5L [Also in Division F1] A pump for supplying lubricating oil to the cutting chain of a chain saw comprises a spring- loaded piston F reciprocated by an eccentric or cam B on the chain saw engine crank-shaft A, the piston controlling an inlet port J in the cylinder H, which is axially movable by screw T in plug W to adjust the effective stroke of the piston. The pump draws oil from reservoir N via inlet O, and delivers it to the chain guide bar mounting S via check valve K, port M and passage P. 0-rings V 1 , V 2 , V 3 prevent leakage.
Bibliography:Application Number: GB19710012572