Paste-dispensrer consists of container with floor, lid, cylindrical wall, piston, hand wheel, detent pawls and counterpart

摘要

The container has a floor (4), lid (5) and circular-cylindrical wall (3) and contains an axially movable piston (6). An axially threaded bar (2) fits into an internally threaded hole (7) in the base and revolves so as to set the piston turning axially. A hand-wheel (1) drives the threaded bar which is fixed in the central hole (9) by detent pawls (10) surrounnding the hole and which fits into a counter-part (11) in the threaded bar.