Knife holder for receiving a wedge-shaped microtome knife

A knife holder for receiving a wedge-shaped regrindable hard metal or steel knife comprising:

• a base;
• a pair of laterally spaced clamping jaws for receiving the knife, wherein the clamping jaws are mounted pivotally to the base to allow clearance angle adjustment of the knife, each of the clamping jaws having first and second opposingly spaced apart walls forming an upwardly open slot;
• a clamping screw secured to each of the clamping jaws and having a tip which is extendable through the first wall of the associated clamping jaw;
• a height-adjustable knife rest extending in the slots of the clamping jaws for supporting the knife;
• a clamping plate positioned in the slots between the first and second opposing walls thereof, whereby the knife is positionable in the slots between the clamping plate and the second walls of the clamping jaws, whereby the clamping screws push the clamping plate against the knife so that the knife rests against the second walls of the clamping jaws;
• and
• a spring suspension secured to each of the clamping jaws and the clamping plate to suspend the clamping plate between the first and second walls of the clamping jaws.

A knife holder assembly comprising:

• a wedge-shaped microtome knife;
• a base;
• a pair of laterally spaced clamping jaws receiving the knife, wherein the clamping jaws are mounted pivotally to the base to allow clearance angle adjustment of the knife, each of the clamping jaws having first and second opposingly spaced apart walls forming an upwardly open slot;
• a clamping screw secured to each of the clamping jaws and having a tip which is extendable through the first wall of the associated clamping jaw;
• a height-adjustable knife rest extending in the slots of the clamping jaws, supporting the knife;
• a clamping plate positioned in the slots between the first and second opposing walls thereof, wherein the knife is positioned in the slots, sandwiched between the clamping plate and the second walls of the clamping jaws, wherein the clamping screws push the clamping plate against the knife so that the knife rests against the second walls of the clamping jaws;
• and
• a spring suspension secured to each of the clamping jaws and the clamping plate to suspend the clamping plate between the first and second walls of the clamping jaws.