Conversion chain saw

Details Conversion chain saw Conversion chain saw

1988-10-11

1989-08-22

Watts, Douglas D.

Cutlery

Convertible

30383, B27B 1700

Patent

active

048583189

ABSTRACT:
There is disclosed a conversion chain saw in which a circular power hand saw which has been converted into a saddle-type chain saw is modified so that it is adapted to use a pin-and-groove-type chain saw and to be again converted back to a saddle-type chain saw. There is mounted on the drive shaft, a dual sprocket composed of a saddle-type chain-saw sprocket, which may be the one in the original conversion, and a pin-and-groove-type chain-saw sprocket. The two sockets are mounted on the shaft in juxtaposition. A shim-plate provides a secondary mounting base for the support bar for the pin-and-groove type. It has an oil tube and conduit for conducting oil into a complementary oil conduit in the new support bar. A suitable coupling nipple is provided to provide for continuity in the oil circuit which takes advantage of the oil circuit already provided in the original conversion.

REFERENCES:
patent: 2860671 (1958-11-01), Wilder
patent: 4033035 (1977-07-01), Trimmer
patent: 4272889 (1981-06-01), Scott et al.
patent: 4649644 (1987-03-01), Huddleston

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