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US 5,139,061 AGranted
Router base table insert
OwnerPatrick J. Neilsoninventor
Life of this patent
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Abstract
A device is disclosed which is designed to be mounted on a plunge router in such a manner that the turning of a crank may be used to adjust the elevation of the router with respect to the associated table. The device includes support columns designed to slidably mount through openings in the router handles and a crank mechanism within one of the support columns and which may be rotated to adjust the elevation of the router. In addition, a transparent insert may surround the router drive shaft beneath the router bit.
Claims7
In a table having an opening, the improvement comprising a machine support comprising:
- a) a plate sized to fit over said opening;
- b) a support column having a passageway therethrough, said column being fixed under said plate and a machine mounted on said column for relative reciprocatory movements of said machine with respect to said column;
- c) a threaded rod in said passageway, said rod being rotatable with respect to said column but constrained against reciprocation with respect thereto;
- d) a threaded block threaded on said rod and constrained against (1) rotation with respect to said column and (2) reciprocation with respect to said machine;
- e) whereby rotation of said rod results in reciprocation of said machine with respect to said table.
2 more elements
Dependencies are inferred from the claim text.