An arrangement for inducing hypnosis includes a record medium subdivided into sections. A first section reproduces a message once for a predetermined period of time. A second section reproduces a second message repetitively for an indefinite period of time. A third section may be included to produce a message or alarm ending the period of hypnosis. Alternately, the alarm may be outside of the record medium.

Oscillatory-drive machine for cleaning rugs and hard surfaces. It employs in contact with the surface of a rug, tile or floor a layer of elastic material the working face of which has an irregular contour.

A method of constructing electrical coils of the cylindrical type for high temperature dry type transformers, wherein the coil collars are formed of a plurality of first and second plies of insulating materials stacked in a predetermined sequence to a predetermined build dimension. At least the first plies are impregnated with a thermosettable resin which has been advanced to an intermediate state, still fusible but dry to the touch, and which is subsequently cured to a solid infusible state to ...

A grinding machine for grinding the external and internal surfaces of a workpiece, comprising a grinding wheel which is rotated about its axis and moved to simultaneously contact a first cutter wheel rotating about its axis and a workpiece rotating about its axis, such that the axis of the workpiece and the axis of the cutter wheel lie in substantially the same vertical plane and are spaced less than 180.degree. from each other about the circumference of the first grinding wheel. The apparatus m...

A more accurate determination of the coefficient of friction between a clutch shoe and drum of a metallic friction clutch is attained from an output measured force which bears a nonlinear relationship to the coefficient of friction. The output force is obtained by (1) applying an input predetermined force on one side of the clutch shoe, which has a pair of bearing surfaces engaging the drum, (2) applying an aiding torque to the drum, and (3) measuring the force transmitted to the opposite side o...

A method of implanting ions in a semiconductor body in which a thin conductive layer is applied on the surface parts or surface adjacent parts at which the ion beam is to be directed. The ions penetrate the thin layer which maintains the surface parts or surface adjacent parts, including metal electrode layers when present, at a common potential. By suitable connection of the thin layer charging of said parts during implantation can be prevented. Subsequent to implantation the thin conductive la...

Broadly, three embodiments are disclosed: a first involving drilling a well from a submersible vessel, a second specifically adapted to drilling a well in shallow water, and a third specifically adapted to drilling a well in deep water. In the second and third embodiments, drilling may be accomplished by workmen on the surface of the water. In each embodiment, an anchor pad is first installed at the selected site of the wellhead. Means is disclosed for performing the cementing of the anchor pad ...

Method and apparatus for organizing and joining conductors of multi-conductor cables such as communication cables. An elongated multiple connector structure having a series of open-channels, the entrance ends of which are intersected by guide channels, each having a releasable holder at one end so that a bundle of wires may be separated, organized and held in the channels in bridging relation to connection sockets. Plugs are forced into the sockets and press bridging portions of the wires therei...

Friction welder and friction welding methods in which plural flywheels can be selectively connected to a single workpiece drive spindle at different times so that kinetic energy can be stored in one flywheel as the kinetic energy of another flywheel is being used to relatively rotate and frictionally weld two workpieces engaged under thrust load. After the workpieces are welded, new workpieces are inserted into the welder so that the energy of the second flywheel can be utilized to relatively ro...

Heat exchange apparatus and methods in which liquids having different phase change characteristics absorb heat from a relatively hot gas at one location and give up the heat to a relatively cool gas at a second location.