Abstract A blade is advanced by controlled increments and brought against first one and then the other of a pair of grinding wheels which are specially configured to impart an improved cutting edge configuration on the blade. The cutting wheel consists of a convexly shaped grinding surface formed annularly on the outer periphery of the grinding wheel midway between the sides of the grinding wheel and terminating in convex valleys with additional convex grinding surfaces along the opposite edges of the grinding wheel. This profile of the grinding wheel imparts a cutting edge to the blade which is capable of greater number of honings before it loses its effectiveness. The apparatus for grinding this improved edge on the blade consists of a pair of coordinated clamping means which at all times holds the blade in clamped condition, first advancing the blade and then moving it laterally first against one and then against the other of the grinding wheels to impart the preferred cutting edge. The grinding action occurs progressively until the blade is completely ground at which time the blade is removed and the cutting wheels are redressed to the desired configuration profile.
Inventors
👤 Clarence H Ludwig
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-09 01:16
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/58
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A process for grinding cutting edges on blades comprising the steps of: clamping the blade at selected locations along the length thereof, grinding a cutting edge by holding the blade in a longitudinally fixed position while laterally displacing the blade against first one and then the other of two rotating grinding wheels one on each side of said blade and each profiled to have centrally disposed convexly shaped annular grinding surfaces of major dimension, a convex grinding surface of smaller dimension disposed immediately adjacent said central surface one on each side thereof, bringing the major and smaller dimension convex grinding surfaces against the surfaces of the blade at first one blade side and then the other blade side to effect a series of profiled cutting scallops with crest and valley sections and reversely directed cutting surfaces between each crest and each valley of the blade, and periodically longitudinally advancing successive blade sections for grinding action.
Claim 2
Dependent Claim
155 words
A process for grinding cutting edges on blades comprising the steps of: clamping the blade at selected locations along the length thereof, grinding a cutting edge by holding the blade in a longitudinally fixed position while laterally displacing the blade against first one and then the other of two rotating grinding wheels one on each side of said blade and each profiled to have centrally disposed convexly shaped annular grinding surfaces of major dimension, a convex grinding surface of smaller dimension disposed immediately adjacent said central surface one on each side thereof, bringing the major and smaller dimension convex grinding surfaces against the surfaces of the blade at first one blade side and then the other blade side to effect a series of profiled cutting scallops with crest and valley sections and reversely directed cutting surfaces between each crest and each valley of the blade, and periodically longitudinally advancing successive blade sections for grinding action.
Claim 3
Dependent Claim
44 words
The process in accordance with claim 1 including the step of dressing each grinding wheel with a hard tipped lever having a cam follower and cam which is configured to be of the same dimension as the grinding wheel dimension intended to be maintained.
Claim 4
Dependent Claim
50 words
The process in accordance with claim 1 including the step of continuously maintaining the blade under gripping action by gripping means for laterally displacing the blade against one or the other of the grinding wheels and with a further gripping means for advancing the blade section for successive grinding action.
Claim 5
Dependent Claim
28 words
The process in accordance with claim 1 including the step of adjusting the location of the blade relatively to the grinding wheel in advance of the first grinding.
Claim 6
Dependent Claim
33 words
The process in accordance with claim 1 wherein each grinding wheel is continuously rotatable on a fixed axis of rotation and the blade is brought laterally thereagainst to effect the grinding action thereon.