| 摘要 |
<p>An improved microtome, including novel mechanisms for incrementally advancing the specimen supporting canti-lever arm toward the stationary cutting knife for producing successive specimen sections during the cutting stroke of said arm, and novel means for retracting the cantilever arm during the return stroke thereof to cause the specimen to bypass the cutting knife prior to the next cutting cycle. The cantilever arm is articulated upon a fulcrum which is movable on a compound multiple pivoting system, the component parts of which are selectively separately and jointly operable to cause said arm to advance and retract alternately during each cutting cycle thereof, and to produce a net predetermined incremental advance of the specimen for each of said cycles.</p> |
