Knife

Claim 2

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a first member at the end of said blade opposite said cutting edge connected to said supporting structure adjacent said handle and extending therefrom parallel with the axis of said blade, a second member offset from the axis of said blade connected to said first member for adjustment lengthwise of the axis of said blade, and a ring-like gauge member having a side fixed to said second member with its axis concentric with the axis of said blade, said ring-like gauge member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least part of its radially outer side facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable and the center of the knife open.

Claim 3

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a first member at the end of said blade opposite said cutting edge connected to said supporting structure adjacent said handle and extending therefrom parallel with the axis of said blade, a second member offset from the axis of said blade and connected to said first member for adjustment lengthwise of the axis of said blade, and a ring-like gauge member extending about 280* to 290* haVing one end fixed to said second member with its axis concentric with the axis of said blade, said ring-like gauge member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least part of its radially outer side remote from said handle facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable and the center of the knife open.

Claim 4

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a first member at the end of said blade opposite said cutting edge connected to said supporting structure adjacent said handle and extending therefrom parallel with the axis of said blade, a second member offset from the axis of said blade and connected to said first member for adjustment lengthwise of the axis of said blade, and a ring-like gauge member extending about 280* to 290* haVing one end fixed to said second member with its axis concentric with the axis of said blade, said ring-like gauge member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least part of its radially outer side remote from said handle facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable and the center of the knife open.

Claim 5

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a plate-like first member at the end of said blade opposite said cutting edge connected at one end to said supporting structure adjacent said handle and extending therefrom with the plane thereof parallel with the axis of said blade, a second member spaced from the axis of said blade connected to said plate-like first member for adjustment lengthwise of the axis of said blade, and a ring-like gauge member having one side fixed to said second member with its axis concentric with the axis of said blade, said ring-like gage member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least part of its radially outer side facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable and the center of the knife open.

Claim 6

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a plate-like first member at the end of said blade opposite said cutting edge connected at one end to said supporting structure adjacent said handle and extending therefrom with the plane thereof parallel with the axis of said blade, a second member spaced from the axis of said blade connected to said plate-like first member for adjustment lengthwise of the axis of said blade, and a ring-like gauge member having one side fixed to said second member with its axis concentric with the axis of said blade, said ring-like gage member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least part of its radially outer side facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable and the center of the knife open.

Claim 7

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a plate-like first member at the end of said blade opposite said cutting edge connected at one end to said supporting structure adjacent said handle and extending therefrom with the plane thereof parallel with the axis of said blade, said plate-like first member having a longitudinal guide surface therein, a second member spaced from the axis of said blade connected to said plate-like first member and adjustable along said guide surface lengthwise of the axis of said blade, said adjustable connection between said first and second members comprising a first screw member for moving said second member lengthwise of said guide surface on said first member and a second screw member for selectively clamping said members together, and a ring-like gauge member having one side fixed to said second member with its axis concentric with the axis of said blade, said ring-like gauge member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least a part remote from said handle having its radially outer side facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable, and the center of the knife open.

Claim 8

A hand-manipulated knife comprising a blade supporting structure substantially annular in shape and including a handle projecting from one side thereof, a ring-shaped blade of short axial length rotatably supported in said structure with a cutting edge at one end projecting from one side of said structure and gear teeth at its other end, a pinion adjacent to said handle in mesh with said gear teeth on said blade for rotating said blade, a plate-like first member at the end of said blade opposite said cutting edge connected at one end to said supporting structure adjacent said handle and extending therefrom with the plane thereof parallel with the axis of said blade, said plate-like first member having a longitudinal guide surface therein, a second member spaced from the axis of said blade connected to said plate-like first member and adjustable along said guide surface lengthwise of the axis of said blade, said adjustable connection between said first and second members comprising a first screw member for moving said second member lengthwise of said guide surface on said first member and a second screw member for selectively clamping said members together, and a ring-like gauge member having one side fixed to said second member with its axis concentric with the axis of said blade, said ring-like gauge member having a maximum dimension in cross section equal to about one-eighth of the interior diameter of said blade and at least a part remote from said handle having its radially outer side facing in the direction of said cutting edge being a convex arc, whereby said gauge member is cantilevered from said supporting structure adjacent said handle, the working area yieldable, and the center of the knife open.

Claim 9

A gauge for a hand-manipulated knife having a blade supporting structure substantially annular in shape and including a handle projecting from the side thereof, a ring-like blade of short axial length rotatably supported in the structure with a cutting edge at one end projecting from the structure and gear teeth at its other end, and a pinion adjacent to the handle in mesh with the gear teeth on the blade for rotating the bladE, said gauge comprising a ring-like gauge member having a maximum diameter less than the interior diameter of the blade of the knife and a maximum dimension in cross section equal to about one-eighth of the interior diameter of the blade of the knife and at least part of its radially outer edge facing in the direction of the cutting edge of the blade of the knife a convex arc, a first member connected to said ring-like gauge member adjacent one side thereof and extending parallel with the axis thereof, a second member adapted to be connected to the supporting structure of the knife adjacent the handle thereof and extend parallel with the axis of the blade of the knife, and means connecting said first member to said second member for adjustment thereof and said ring-like gauge member lengthwise of the axis of the blade.

Claim 10

A gauge for a hand-manipulated knife having a blade supporting structure substantially annular in shape and including a handle projecting from the side thereof, a ring-like blade of short axial length rotatably supported in the structure with a cutting edge at one end projecting from the structure and gear teeth at its other end, and a pinion adjacent to the handle in mesh with the gear teeth on the blade for rotating the bladE, said gauge comprising a ring-like gauge member having a maximum diameter less than the interior diameter of the blade of the knife and a maximum dimension in cross section equal to about one-eighth of the interior diameter of the blade of the knife and at least part of its radially outer edge facing in the direction of the cutting edge of the blade of the knife a convex arc, a first member connected to said ring-like gauge member adjacent one side thereof and extending parallel with the axis thereof, a second member adapted to be connected to the supporting structure of the knife adjacent the handle thereof and extend parallel with the axis of the blade of the knife, and means connecting said first member to said second member for adjustment thereof and said ring-like gauge member lengthwise of the axis of the blade.

Claim 11

A gauge for a hand-manipulated knife having a blade supporting structure substantially annular in shape and including a handle projecting from the side thereof, a ring-like like blade of short axial length rotatably supported in the structure with a cutting edge at one end projecting from the structure and gear teeth at its other end, and a pinion adjacent to the handle in mesh with the gear teeth on the blade for rotating the blade, said gauge comprising a ring-like gauge member extending about 280* to 290* having a maximum diameter less than the interior diameter of the blade of the knife and a dimension in cross section equal to about one-eighth of the interior diameter of the blade and at least part of its radially outer edge facing in the direction of the cutting edge of the knife a convex arc, a first member connected to said ring-like gauge member adjacent one side thereof and extending parallel with the axis thereof, a plate-like second member adapted to be connected to the supporting structure of the knife adjacent the handle thereof and extend parallel with the axis of the blade, first screw means connected to said first and second members for adjustment of said first member and said ring-like gauge member lengthwise of the axis of the blade, and a second screw means for fixedly connecting said first and second members together.

Claim 12

A gauge for a hand-manipulated knife having a blade supporting structure substantially annular in shape and including a handle projecting from the side thereof, a ring-like like blade of short axial length rotatably supported in the structure with a cutting edge at one end projecting from the structure and gear teeth at its other end, and a pinion adjacent to the handle in mesh with the gear teeth on the blade for rotating the blade, said gauge comprising a ring-like gauge member extending about 280* to 290* having a maximum diameter less than the interior diameter of the blade of the knife and a dimension in cross section equal to about one-eighth of the interior diameter of the blade and at least part of its radially outer edge facing in the direction of the cutting edge of the knife a convex arc, a first member connected to said ring-like gauge member adjacent one side thereof and extending parallel with the axis thereof, a plate-like second member adapted to be connected to the supporting structure of the knife adjacent the handle thereof and extend parallel with the axis of the blade, first screw means connected to said first and second members for adjustment of said first member and said ring-like gauge member lengthwise of the axis of the blade, and a second screw means for fixedly connecting said first and second members together.