Abstract: An improved device for the stamping of identification or other insignia on work pieces as part of the operations performed thereon in rotating machines such as lathes, automatic lathes, screw machines or the like. The stamping device is carried on a tool slide of the machine for movement toward and away from the work piece and includes a stamp having a flat face containing raised characters intended to be imprinted in the work piece, means to move the stamp to an extreme outer position when the slide is withdrawn from the work piece and to latch the stamp in said outer position, and means responsive to contact of the stamp assembly with the rotating work piece as the slide is moved toward the work piece to release the latch means.

Abstract: Methods and apparatus are disclosed for the manufacture of plastic intraocular lenses of the type used for transplant in the human eye for natural lens replacement in cataract surgery. The novel methods and apparatus of the present invention are characterized in that the lines or wires used as retention loops are attached to the plastic lens bodies by fusing the ends thereof internally of the lens body in a position remote from the outer peripheries of the lens bodies but outside the central areas of vision of the lens bodies, one method of fusing the ends of the wires to the lens bodies being by heating the wires and pushing them into the lens bodies.

Abstract: An improved economical, easily assembled, prefabricated building structural system is disclosed in which practically no on site construction is necessary as compared with the substantial site preparation necessary in the prior art. Substantially every portion of the main structure may be prefabricated on or off site, prior to assembly. The system is characterized in the use of materials which render it fireproof, weatherproof and termite proof and not subject to buckling or warping. It has structural details and connections at the footings, floor slab, vertical columns, roof trusses and interior and exterior walls, for example, which render the finished structure flood and earthquake resistant and give it a life expectancy far superior to prior art prefabricated or conventional housing.