A center-pull brake comprising a pair of brake shoes carrying arms pivoted on a brake base adapted to be attached to the front or rear of a bicycle frame, a flexible inner-wire engaging the upper ends of the arms so as to close and open them, a hollow and flexible outer-wire passed through by said inner-wire and such a release means, mounted on said brake base and holding the lower end of said outer-wire, that is adapted to adjust the position of the lower end of said outer-wire relative to said...

A center cutting indexable insert end mill which can be used for axial plunging in solid material or side cutting. The center cutting insert having corner radii is positioned with the axial center line of the tool shank intersecting the inner corner radius. A single square insert with side clearance angle having the cutting face located in a radial plane provides alternate active cutting edges for axial and/or radial feed; alternatively a second diametrically oppositely located identical insert ...

A cylindrical adapter fits on a freon canister and has an inverted frust-conical top with a central upstanding tubular member. An upper housing is supported upon the adapter for limited rotational movement relative thereto and carries a control tube extending downwardly through the tubular member of the adapter with a valve actuating member at its lower end to puncture the valve of the canister and provide a gas jet upwardly through the control tube. The housing has a central top opening to rece...

A chewing gum piece having an enclosed cavity formed therein, and a liquid fill in the cavity. The liquid fill includes an aqueous solution having a dissolved solids portion, and glycerin for retarding increases in viscosity of the liquid fill.

An electric disconnect switch of high voltage capabilities constructed of relatively lightweight material and with a minimum of copper to reduce the dead weight load of the structure.

An adapter for rendering a live center for machines adjustable for adjustable centering of work pieces may comprise a generally conical body having a conical recess formed therein and adapted to receive the conical extremity of a rotatable live center element of a live center mechanism. A conical surface may be formed at one extremity of the conical body and may be disposed for receiving contact within the center hole of a work piece. The generally conical body may include pivot means internally...

A spring-loaded live center formed by an adapter mounted on a ball bearing live center. The adapter includes a hollow locating housing arrangeable on the live center, a center slidably arranged in a central bore of the hollow housing, and a spring disposed within and extending from a recess provided in the center. The spring biases the center against the live center. A longitudinal groove and a wedge-shaped groove are provided in the center for permitting screws, and the like, disposed in holes ...

A remote center compliance system having a variable center, an upper plate, a lower plate, and elastic bodies installed between the upper and lower plates, includes lower rotary plates, each having a rotation axis parallel to a center axis passing the center of the lower plate and the center of the upper plate, coupled to a lower end of each of the elastic bodies and coupled to the lower plate for rotating, and upper rotary plates, each being coupled to an upper end of each of the elastic bodies...

An electrically controlled water powered reversible center pivot irrigation apparatus is disclosed. The apparatus includes a multiplicity of water-carrying conduits flexibly connected to each other and supported at intervals by self-propelled supports. Each of the self-propelled supports includes a water powered sprinkler which turns a drive shaft for propulsion of the support. An electrically controlled transmission designates the direction in which the support travels and mechanical linkages, ...

A device for increasing the leverage on a motorcycle center stand to position it to support a motorcycle vertically. The center stand is pivotally secured to the motorcycle main frame and is formed of laterally spaced legs adapted to support the motorcycle on their lower ends in an at rest position. Upper end portions of the legs are pivotally mounted to the frame, the stand being normally spring biased on the pivot mounting in the upwardly non-functional position. A side arm on the stand extend...