Ratchet feed drive for clamshell lathe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 31, 1990
Grant Date -
N/A
app pub date -
Jan 29, 1990
filing date -
Jan 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention pertains to a cam-actuated ratchet feed drive for a clamshell lathe having a guide block attachable to the rotating ring gear of the clamshell and which slidingly supports a tool holding block in a dove-tail guideway. A threaded lead screw is coupled to the tool holding block and adapted to be driven either clockwise or counterclockwise by a cam-actuated pawl/racket combination. Means are provided for shifting a pair of pawls relative to associated ratchet wheels such that one, the other or neither of the ratchet wheels is driven upon engagement of the cam surface with a stationary cam follower.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully