Abstract: A washing unit for machines that clean ophthalmic glass (1) or other substrates. It includes, on one hand, two washing lines (22, 23), each able to issue a high-pressure jet of washing liquid in a flared shape of a width substantially equal to or greater than the diameter of the glass to be cleaned, said lines (22, 23) being parallel and mounted opposite each other on each side of the glass (1) to be cleaned so that the two streams of liquid (30) are located at the same level and come into contact on the concave (10) and convex (11) surfaces respectively of said glass (1); and, on the other hand, supports (4) intended to hold the glass (1) in a stable position during the washing operation and the means (2?) to allow movement of said lines (22, 23) or the glass (1) in order to perform simultaneous bathing of the concave (10) and convex (11) surfaces of the glass by the respective strains of washing liquid (30).

Abstract: A washing unit for machines that clean ophthalmic glass (1) or other substrates, it includes, on one hand, two washing lines (22, 23), each able to issue a high-pressure jet of washing liquid in a flared shape of a width substantially equal to or greater than the diameter of the glass to be cleaned, said lines (22, 23) being parallel and mounted opposite each other on each side of the glass (1) to be cleaned so that the two streams of liquid (30) are located at the same level and come into contact on the concave (10) and convex (11) surfaces respectively of said glass (1); and, on the other hand, supports (4) intended to hold the glass (1) in a stable position during the washing operation and the means (2?) to allow movement of said lines (22, 23) or the glass (1) in order to perform simultaneous bathing of the concave (10) and convex (11) surfaces of the glass by the respective strains of washing liquid (30).

Abstract: A washing unit for machines that clean ophthalmic glass (1) or other substrates. It includes, on one hand, two washing lines (22, 23), each able to issue a high-pressure jet of washing liquid in a flared shape of a width substantially equal to or greater than the diameter of the glass to be cleaned, said lines (22, 23) being parallel and mounted opposite each other on each side of the glass (1) to be cleaned so that the two streams of liquid (30) are located at the same level and come into contact on the concave (10) and convex (11) surfaces respectively of said glass (1); and, on the other hand, supports (4) intended to hold the glass (1) in a stable position during the washing operation and the means (2?) to allow movement of said lines (22, 23) or the glass (1) in order to perform simultaneous bathing of the concave (10) and convex (11) surfaces of the glass by the respective streams of washing liquid (30).

Abstract: Device for the regulation of the concentration of a product in a liquid and, most specifically, of an alcohol used in the composition of a varnish contained in a varnishing vat for optical glasses or other substrates. The vat comprises an overflow tray and a sealed alcohol reservoir. The reservoir is installed higher than the overflow tray so that when level of the varnish in the overflow tray drops sufficiently low, an air bubble is created that rises to the alcohol reservoir, thus creating additional pressure in the alcohol reservoir and forcing a drop of alcohol into the overflow tray until the level of the varnish in the overflow tray recovers its normal level above the junction point between the second pipe and the overflow tray.

Abstract: A glass holder device for treatment of optical glasses (4, 4?) or other substrates horizontally supports an elongated bar (1) with evenly spaced notches (10) on a frame and suspends glass holder grips (2) in parallel side-by-side vertical relation. The glass holder grip (2) comprises an axially elongated rod (20), that forms the body of the grip, and holding means (3, 31, 31?) connected to the grip body (20) for clutching the outer periphery (40, 40?) of the optical glass (4, 4?) and holding the glass generally parallel with the lower end portion of and adjacent to a stop (36) bent outwardly from the body (20) for supporting the glass. The upper end portion of the rod (20) includes hanging means (21, 22, 25) for removably connecting the grip to the bar (1) and locking means (11, 23, 12, 25) for preventing free rotation of the grip (2) around the bar (1).