Tool sharpening apparatus
OwnerFrancis E. Risherinventor
Life of this patent
Estimating the term…
Abstract
Tool sharpening apparatus including a base member having a first support carrying a floating head and a second support for receiving the tool to be sharpened and for holding the same in proper position. A sharpening element, such as a file, is mounted for longitudinal reciprocal movement on the floating head for sharpening the tool. The floating head member is biased away from its support member and is movable vertically to move the file into and out of engagement with the leading edge of the tool so that slight pressure on the file on the forward stroke moves the assembly down into engagement with the tool, and release of such pressure when pulling the file back allows the file to be urged away from the tool.
Claims10
Tool sharpening apparatus, comprising:
- a base member;
- support means on said base member for securely holding a tool having an edge to be sharpened;
- a head member reciprocably carried on said base member for movement toward and away from the edge of a tool held by said support means;
- a sharpening element slightly mounted on said head member for reciprocable motion in constant planes relative to and generally longitudinally along the tool edge;
- and
- means biasing said head member away from the tool edge, whereby said head member is movable downwardly for engagement of the sharpening element with the tool edge on a forward stroke thereof and is urged upwardly to separate the sharpening element from the tool edge on a return stroke.
Dependencies are inferred from the claim text.