Apparatus for precision steeling/conditioning of knife edges
View Patent ↗A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.
1. A knife edge enhancing apparatus for manually modifying the physical structure along an elongated edge of a knife blade, the apparatus comprising a support having a generally horizontal support surface, an upstanding rigid holder positioned slidably on said support, a sharpening member having a sharpening surface, said sharpening member being structurally mounted to said holder above and spaced from said generally horizontal support surface, blade clamping structure mounted to said support releasably stationarily mounting the knife blade with the plane of a facet of the blade at a fixed non-variable first angle A with respect to a reference plane whereby the blade is maintained in a fixed orientation, said sharpening member being rigidly mounted to said holder and having its angular orientation with respect to said holder selectively adjustable at a selected angular orientation whereby said sharpening member is angularly adjustably mounted to said holder to dispose said sharpening surface at an adjustable angle C with respect to the reference plane during use, said sharpening member being supported solely by said holder, and said holder and said sharpening member being jointly freely slidable in an unconfined manner on said support surface whereby a user may selectively manually move and maintain said sharpening member into contact with the stationarily held blade facet at a controlled constant angle and move said sharpening member over the length of the facet for sharpening the blade with the blade fixed at angle A and said sharpening surface fixed at angle C.
2. The apparatus of claim 1 wherein the difference between said angle C and said A is an angle B which is less than 10 degrees.
3. The apparatus of claim 2 wherein said angle B is in the range of 3-5 degrees.
4. The apparatus of claim 1 wherein said blade clamping structure is disposed above said support surface for orienting the blade with its axis nominally horizontal independently of the thickness of the blade and the angle of the blade faces.
5. The apparatus of claim 1 in combination with a knife having a blade, said blade having a centerline axis which is in said reference plane.
6. The apparatus of claim 1 wherein said holder comprises a post slidably mounted on said support surface.
7. The apparatus of claim 6 wherein said holder further comprises a pedestal on which said post is mounted.
8. The apparatus of claim 1 wherein said sharpening surface is abrasive.
9. The apparatus of claim 1 wherein said sharpening surface is a non-abrasive.
10. The apparatus of claim 9 wherein said sharpening surface is smooth.
11. The apparatus of claim 9 wherein said sharpening surface is scored.
12. The apparatus of claim 1 where said blade clamping structure is capable of mounting the knife blade solely at said fixed angle.
13. A knife edge enhancing apparatus for manually modifying the physical structure along an elongated edge of a knife blade, the apparatus comprising a support having a generally horizontal support surface, an upstanding rigid holder positioned on said support, a sharpening member having a sharpening surface, said sharpening member being mounted to said holder above and spaced from said generally horizontal support surface, blade clamping structure mounted to said support releasably stationarily mounting the knife blade with the plane of a facet of the blade at an adjustable first angle A with respect to a reference plane and at an adjustable angle with respect to said support surface, said sharpening member being mounted to said holder with said sharpening surface at a fixed non-variable angle C with respect to the reference plane and at a fixed non-variable angle with respect to said support surface, said sharpening member being supported at said fixed angles solely by said holder, and said holder and said sharpening member being jointly freely slidable in an unconfined manner on said support surface whereby a user may selectively manually move said sharpening member into contact with the stationarily held blade facet at a controlled constant angle and move said sharpening member over the length of the facet for sharpening the blade with the blade fixed at angle A and said sharpening surface fixed at angle C.
14. The apparatus of claim 13 wherein the difference between said angle C and said angle A is an angle B which is less than 10 degrees.
15. The apparatus of claim 14 wherein said angle B is in the range of 3-5 degrees.
16. The apparatus of claim 13 in combination with a knife having a blade, said blade having a centerline axis which is in said reference plane.
17. The apparatus of claim 13 wherein said holder comprises a post slidably mounted on said support surface.
18. The apparatus of claim 17 wherein said holder further comprises a pedestal on which said post is mounted.
19. The apparatus of claim 13 wherein said sharpening member surface is abrasive.
20. The apparatus of claim 13 wherein said sharpening member surface is a non-abrasive.
21. The apparatus of claim 20 wherein said sharpening member surface is smooth.
22. The apparatus of claim 20 wherein said sharpening member surface is scored.
23. A knife edge enhancing apparatus for manually modifying the physical structure along an elongated edge of a knife blade, the apparatus comprising a support having a generally horizontal support surface, an upstanding rigid holder slidably positioned on said support, a sharpening member having a sharpening surface, said sharpening member being mounted to said holder above and spaced from said generally horizontally support surface, blade clamping structure mounted to said support releasably stationarily mounting the knife blade with the plane of a facet of the blade at an adjustable first angle A with respect to a reference plane and at an adjustable angle with respect to said support surface, said sharpening member being rigidly and vertically adjustably mounted to said holder to adjust the distance of said sharpening surface from said support surface whereby said sharpening surface may be moved into contact with the facet of the blade, the angular orientation of said sharpening surface with respect to said holder remaining constant in all positions of said sharpening member when said sharpening member is vertically moved on said holder from one position to another position, said sharpening member being mounted to said holder with said sharpening surface at a fixed non-variable angle C with respect to the reference plane and at a fixed non-variable angle with respect to said support surface, and said holder and said sharpening member being jointly freely slidable in an unconfined manner on said support surface whereby a user may selectively manually move said sharpening member into contact with the stationarily held blade facet at a controlled constant angle and move said sharpening member over the length of the facet for sharpening the blade with the blade fixed at angle A and said sharpening surface fixed at angle C.
24. The apparatus of claim 23 wherein said sharpening member is a weighted cylinder.
25. The apparatus of claim 23 wherein said holder extends through said sharpening member whereby said sharpening member is telescopically mounted to said holder.