Device for the fine adjustment of an instrument table supporting an optical equipment

A device for the fine adjustment of an optical instrument, comprising a base plate, an instrument table including an instrument support plate for supporting said optical instrument, an intermediate plate resting upon said base plate, a control lever, said control lever comprising a hollow sleeve and a rod extending into said sleeve and engaging said sleeve without lost motion, said sleeve being rotatable about its longitudinal axis, a universal joint mounted on the lower end of said sleeve on which said control lever swivels in all directions about a pivot point defined by said universal joint, a gearwheel mounted on said universal joint and rotatable with said sleeve and universal joint, and means connected with said gearwheel and operable on rotation of said sleeve to raise and lower said instrument support plate, said rod being pivotally connected to said intermediate plate at its lower end and being pivotally connected to said instrument table at a point below said pivot point of said universal joint to produce horizontal displacement of said instrument table when said control lever is swivelled.