초록 ▼

Disclosed is a traversing microtome having a base (10) and a movable carriage (13). A blade holder (12) with a blade (16) is mounted on the base (10), and an object holder (14) is mounted on the carriage (13). To carry out the cutting process, the carriage (13), together with the object holder (14)

Disclosed is a traversing microtome having a base (10) and a movable carriage (13). A blade holder (12) with a blade (16) is mounted on the base (10), and an object holder (14) is mounted on the carriage (13). To carry out the cutting process, the carriage (13), together with the object holder (14) and the object (15), is moved against the stationary blade (16). Between the guide rails (18,18′) of the base (10) and the carriage (13) a bearing gap (30) with a width of a few microns is created by means of air bearing elements (21,21′), and consequently only a minimal force is required to move the slide (13). Between the air bearing elements (21,21′), magnets (22,22′) are arranged so that their attracting forces act against the air pressure of the air bearing elements. In this manner, the force needed to arrest the motion of the carriage (13) at any given location of the guide rails (18,18′) is extremely low. The carriage (13) cannot be moved when the supply of air is interrupted. The air bearing elements are suspended in the manner of a pendulum and are adjustable in height; the latter is true for the magnets (22,22′) also. In view of the air bearings, no lubrication is required for the guide rails (18,18′).

대표청구항 ▼

A traversing microtome, comprising: a base; a blade mounted on said base; a movable carriage adapted to hold an object to be cut by said blade upon movement of the carriage with respect to the blade; guide members along which said carriage is movable with respect to said base; means for selectively

A traversing microtome, comprising: a base; a blade mounted on said base; a movable carriage adapted to hold an object to be cut by said blade upon movement of the carriage with respect to the blade; guide members along which said carriage is movable with respect to said base; means for selectively creating an air-cushioned suspension of said carriage with respect to said base, whereby substantially frictionless movement of said carriage along said guide members can be achieved; and means, including at least one magnet positioned in the vicinity of one of said guide members, for urging said carriage into a stopped position with respect to said base.