Abstract: A flier-type armature winder winds armatures consisting of a commutator with circumferentially gapped tangs and an armature core, co-axially mounted on a common shaft. In operation, at least one flier winds coils of wire successively onto the armature core and a shield covers the commutator tangs to prevent them from being accidentally engaged by the wire. After each winding of the wire coils, a wire lead from the last wound coil is looped about a corresponding one of the commutator tangs. The wire loop is formed by first securing the wire lead to wire-engaging means located on the shield. Then the shield is moved to substantially align its wire engaging means and the secured wire lead with a first one of first and second gaps in the commutator which are disposed at opposite sides of the corresponding tang. Next, the shield is retracted from the commutator tangs to lay a trailing portion of the wire lead in the first gap.

Abstract: A method of molding glass elements requiring no further preparatory operations such as grinding or polishing before use wherein a portion of glass is heat-softened and subjected to pressure in a mold having molding surfaces formed of silicon carbide (SiC) or silicon nitride (Si.sub.3 N.sub.4).

Abstract: A film cartridge for use with cinematographic apparatus or the like comprises a reel adapted to have flexible strip material wound thereon, a cover adapted to receive the reel in a nested position, and a releasable latch effective to retain the reel in the nested position until the cartridge is received by the cinematographic apparatus or the like. At that time, the latch is released by a portion of the apparatus.

Abstract: An objective lens comprising three elements, a front positive biconvex element, a middle negative biconcave element and a rear positive biconvex element. The first two elements are made of inexpensive plastic materials. Aberration correction at a high relative aperture is improved by the use of aspheres on selected surfaces of the first and second elements.