Le′ver-press.
One of the simplest and most evident forms of pressing apparatus. It assumes many forms: cider-presses, lard or tallow squeezers, cheese-presses, are constructed to obtain pressure by a lever, which is depressed by a suspended weight, as at a, by tackle or by a screw. See oil, cheese, cotton, hay-baling press. Hebert's oil-press b has a standing and a movable jaw with a lever by which the latter is oscillated. Depressions in the faces of the jaws hold the bag of olives, or other oil-producing fruit or seeds. The operator is worth his weight in stones or anything else and something more, as he can climb up to his perch. c is a cheese-press having a screw for quick motion and a compound lever and suspended weight for continuous pressure. The nut of the screw is boxed in the short lever, which is of the second class. The long lever is of the same class. |
| Duplex lever-punch. |
