A spherical hob for generation of a gear comprises a symmetrical frustospherical body in the form of a sphere truncated at two opposed extremities thereof, the body having an axis of symmetry perpendicular to the extremities. A hole passes through the body coaxially with the axis. Formed spirally about the axis on the peripheral surface of the body are projections having a section in a plane including the axis in the form of an involute tooth profile. Formed on the peripheral surface of the body...

A method of producing hydrogen and oxygen or oxides wherein electrolysis of n aqueous system is carried out using, in the cathode compartment of the electrolysis cell, a hydride-forming liquid metal, the resulting hydride being thermally decomposed to produce the hydrogen.

A continuous panoramic image seen at infinity from an observation space E is obtained from a prismatic image whose facets consist of alternate and edge-to-edge real images I11, I12, . . . and virtual images I'21, 22, . . . , and by reflection of this prismatic image in a set of sperical concave mirrors MC1, MC2, . . . forming a reflection area. The real images are produced by a first set of image generators M11, M12, . . . The virtual images are the conjugates by reflection in the semi-transpare...

Disclosed is a fog generating apparatus having adjustable metering valve in which the liquid atomized at the nozzle of the apparatus is drawn past a valve opening of adjustable size and flows through the cooperating valve stem to a conduit leading to the atomizing nozzle.

A vortex is formed in fluid flowing through a flow passage from the inlet of the passage to its outlet. A resonator is disposed at the outlet external to the passage to intercept fluid flowing vortically through the passage. A bluff body lies between the outlet of the passage and the resonator to interrupt fluid flowing through the passage. The resonator is cylindrical having an axis aligned with the axis of the flow passage, an open end facing toward the outlet of the flow passage, and a closed...

The several embodiments of the self-generating breakerless ignition system disclosed herein are each comprised of a rotor structure with a permanent magnet which induces voltages in a plurality of windings, three cascaded semi-conductor switching elements to control the current in the windings, a trigger signal which is provided by one of the windings and which activates the switching elements at a predetermined time, and means which simultaneously supply positive and negative biasing to the swi...

An apparatus for reacting on matter with shock waves which are directed through or against said matter. In one form, the shock waves are generated intermittently for an extended period of time, during which time the work is subjected to the high temperatures and pressures of the shock waves. Both chemical and physical changes may be effected in the material reacted on by the shock waves. Where a plurality of shock waves are directed against the same matter to progressively change same, the appar...

A cylindrical cam is obliquely mounted on a drive shaft to be shiftable in the axial direction. The cam and the drive shaft are concentric at the axial center and the eccentricity of the cam increases gradually towards the opposite ends and in opposite phases. A pair of contact members carried by a follower member engage the opposite sides of the cam. As the drive shaft is rotated a reciprocating motion is imparted to the follower member and by shifting the cam in the axial direction the amplitu...

An X-ray tube in which the electron beam can be deflected over the target is provided with means for causing the electron beam to scan in stepped, rather than continuous, manner along the target.

A method and apparatus for generating steam including an internal combustion engine providing mechanical energy and also thermal energy which is commonly referred to as waste heat. In one aspect, the engine drives a heat pump, and the low temperature side of the heat pump removes waste heat from the engine and in some instances also heat from the environment, while the high temperature side of the heat pump delivers heat to an unfired steam boiler. In another aspect, the engine drives a water in...