Elevator for drill press table

Details Elevator for drill press table Elevator for drill press table

B - Operations, Transporting

23

B

77/2

B23B 39/00 (2006.01) B23B 47/00 (2006.01) B23Q 1/00 (2006.01) B23Q 1/48 (2006.01) B23Q 5/34 (2006.01)

Patent

CA 1138687

ELEVATOR FOR DRILL PRESS TABLE ABSTRACT OF THE INVENTION An elevator for a drill press table comprises a sprocket chain suspended at the top of the drill press column to extend verti- cally downwardly along the column, and a companion sprocket wheel mounted on the drill press table for rotation about a substan- tially horizontal axis. A friction brake mechanism restrains angular movement of the sprocket wheel and holds the table in the vertical position thereby determined. A crank directly connected to the sprocket wheel rotates the sprocket wheel up or down the chain correspondingly to position the drill press table. In the preferred arrangement, a ratchet mechanism allows the crank to override the brake in the up direction of the sprocket. Rapid and reliable adjustment of table height is achieved.

356461

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