An optical instrument is disclosed having a single light input, paired variable ocular outputs and a folded and split light path therebetween. Provision is made in the folding of the light path for the insertion of a stabilizing mirror to remove apparent image vibration due to ambient instrument vibration.

A microphone includes a microphone housing having a sound transducer therein. A cover of substantially cup-shaped configuration fits over one end of the housing above the transducer and it is made of a material which comprises a plurality of particles which are sintered together or fused together in a manner to define tortuous passages therebetween and to define hollow spaces remaining between the particles, and which hollow spaces are interconnected, thus forming irregular channels which assure...

The lenses of the sunglasses are adjustable in the frame for the purpose of moving the same from a normal position in front of the eyes downwardly to a position over the cheeks in an area immediately below the eyes whereby to prevent glare from the cheeks into the eyes.

An absorbent bandage with an integral reservoir for the storage of fluids.

A container closure is constructed of a metal shell having a primer coating of a mixture of a vinyl chloride copolymer, a thermosetting phenol-aldehyde resin, and an epoxy resin on the interior surface thereof and a polyethylene liner disposed therein and bonded to the primer coated interior surface by an adhesion promoting coating comprised of a blend of polyethylene and polyvinylbutyral.

An electrical transformer having a core-winding assembly, with the core-winding assembly and all other metallic parts of the transformer totally enclosed within a nonmetallic casing. The core-winding assembly is supported in the nonmetallic casing from the top cover of the casing. The nonmetallic casing comprises a nonmetallic bottom which is keyed into the sidewalls of the nonmetallic casing to provide a fluidtight joint.

A receptacle having at least two chambers for receiving and subsequently mixing the ingredients of dental preparations or other products. The pair of chambers are initially separated from each other by a dividing wall which has at least one weakened, substantially linear portion or notch arranged to rupture and form a gap for passage of one of the ingredients therethrough when bending or buckling forces are exerted upon the dividing wall, but upon termination of the action of such forces the gap...

This invention relates to footwear having an active ornament comprising a footwear body, a sealed hollow space formed in the bottom portion of said footwear body, an active ornament having resilience and elasticity provided on the upper portion of said footwear body and formed therein with a sealed hollow space, and a conduit connecting said sealed hollow space in the bottom portion of said footwear body to said sealed hollow space in said ornament.

Apparatus including wearing apparel which imparts the illusion of a fully pleated garment, such as a dress or skirt, in which only a small portion of the garment has the flexibility of pleats.

A power transmission is provided with a pair of belts interconnecting a drive and a driven sheave in an arrangement which permits selective rotation of the driven sheave in either direction by movement of corresponding idler pulleys alternately from a neutral position to their belt tightening positions. A lost motion assembly forming a part of an extensible toggle link connection with one of the belt tightening units makes it possible to use but a single actuator to control the entire operation.