A pulse forming network (PFN) is charged to an initial voltage level above a desired operating level. The PFN is then slowly discharged by a controlled discharge path first to an intermeidate voltage level and thereafter, beginning at a set time before the main discharge into a load, it is further discharged to the desired operating level.

An Anger-type scintillation camera system fitted with a gamma ray filter between the object under study and the detector and a signal funneling type of output signal filter, in mechanical or electrical form, associated with an image recording film. The gamma ray filter and signal funneling type of output signal filter scan in synchronism so that the total radioactivity distribution in the object is documented on the film with improved resolution.

An Anger-type scintillation camera system fitted with a gamma ray filter between the object under study and the detector and an output signal filter in the form of a funnel-type optical filter between the cathode ray tube of the detector and an image recording film. The gamma ray filter and funnel-type optical filter scan in synchronism so that the total radioactivity distribution in the object is documented on the film.

A carton with improved hand holes for facilitating lifting the carton, the hand holes being unusually resistant to tearing when the carton is lifted. In one aspect of the invention, the improved hand holes take the form of inverted V cutouts located on opposed sidewall panels of the carton. In another aspect of the invention, the improved hand holes take the form of at least one inclined, elongated, slot-shaped cutout located on each of two opposed sidewall panels of the carton. In both aspects ...

An Anger-type scintillation camera system fitted with a gamma ray filter between the object under study and the detector and an output signal filter, in mechanical or electrical form, associated with an image recording film. The gamma ray filter and output signal filter scan in synchronism so that the total radioactivity distribution in the object is documented on the film.

A lightweight crankshaft is manufactured by providing a plurality of initially completely discrete crankshaft segments, some of which are generally tubular, and joining complementary faces of the segments to each other by friction welding.

A system for recording samples of video information signals as a plurality of magnetic recording discs is provided, for use, for example, as an automatic television editing system. Audio information signals are recorded along with the video samples. Means are provided for reproducing the original video information signals by duplicating the sampled video signals. Means are also provided for reproducing the corresponding audio signals.

An Anger-type scintillation camera having analog circuitry in the form of seven correction generators each associated with one of a central seven of an array of nineteen photomultiplier tubes to compensate for spatial non-linearities in the camera. Each correction generator is active for scintillations produced by gamma ray interactions near its associated photomultiplier tube and produces correction signals which are added to the coordinate signals of an Anger-type camera to produce corrected c...

A fastener having a shank divided into first and second portions, with a continuous thread on both portions extending from end to end of the shank and plural convolutions on both portions; an additional thread extends only on the second portion intermediate the continuous thread, of similar uniform pitch as the continuous thread, and parallel to it; the second portion may be adjacent the head or intermediate the ends of the shank. The thread major diameters may be uniform, the major diameter on ...

An improved valve dispensing apparatus comprising a housing defining a tubular chamber communicating with a material inlet and exit port and a unitary valve member defining a passageway axially sealingly slideable in the chamber is set forth. Also a process for dispensing of material having ductile particulates therein from such apparatus is disclosed. In the process, the valve member is moved to a position establishing registry of the passageway with the inlet and exit port for providing a path...