Polyolefin resin pellets of greater uniformity of shape and characterized by an almost complete absence of tails are obtained by the use in the pelletizing apparatus of dies which have been coated by a thin layer of finely divided solid lubricant such as molybdenum disulfide or, preferably, graphite applied to the interior surfaces of the die by cross bombardment with a stream or streams of finely divided solid lubricant under pressure.

A feed-through insulating assembly for a conductor in a high-pressure electrostatic precipitator comprises a pair of grooved insulator rings which are urged against a flange and bear upon the latter through wire seals, the rings being coaxial and having their grooves opening in opposite directions. A pair of oppositely concave cup-shaped members have rims seated on the floors of the respective grooves via further seals and reach into the grooves while being pressed together by the conductor and ...

Disclosed herein is a photographic camera having an integral flash unit which illuminates object space through the camera's viewfinder. According to a preferred embodiment, light from an energized flashlamp mounted within the camera interior is reflected into object space by means of a mirror which is pivotally mounted in the camera's viewfinder. Prior to shutter release, the mirror is stored in a position to allow normal use of the viewfinder. In response to actuation of the camera's shutter re...

Gas flow through electrodes for electrochemical cells having a porous flow through matrix with electrocatalysts supported on the surfaces of the matrix within the pores, the pores providing a through route for a metastable colloid of electrochemically reducible or oxidizable gas bubbles in liquid electrolyte, with absorption of some of the gaseous component on the walls of the pores. Improved depolarization of the electrode provides long life and stable gas flow through electrodes for electroche...

A poke-through electrical fitting for protecting and supporting a wire or cable as it passes through a fire rated barrier and which will fit through a standard knock out of an electrical fitting box which is one and three-eighths inches in diameter and which, in the trade, is called a one inch knock out. The fitting does not require an electrical fitting box on both sides of the barrier. The device comprises an elastomeric grommet having an appropriately sized transverse hole and a slit from the...

A pour through stopper which permits dispensing of a liquid from a container without complete removal of the stopper. The construction is such that the stopper defines a dispensing passage through which the liquid passes when it is being poured. An improved sealing arrangement is provided for preventing the accidental discharge of liquid and for protecting and sealing the components of the stopper from the dispensed liquid.

An arrangement for mounting lead-through conductors is disclosed. A ceramic plate is sealed between two steel flanges. The conductors pass through the ceramic plate and are sealed on both sides. When one side of the plate is exposed to high pressure, low temperature gas, and the other side of the plate is exposed to high vacuum at a higher temperature, the plate is protected from excessive stresses by providing gaskets on one side of the ceramic plate having a different coefficient of thermal ex...

The present invention discloses a straight-through-repeater which relays a frequency-modulated microwave signal. The straight-through-repeater is basically comprised of a phase-locked loop circuit located between receiving and transmitting antennas of the repeater. The phase-locked loop circuit has a demodulating capability for reproducing a baseband signal, a power amplifying capability, a very narrow filtering capability, an automatic gain controlling capability and an amplitude limiting capab...

An insulating window which has louvered radiant energy absorbing screen positioned in the airspace between inner and outer spaced apart window panes, said airspace connected at the top to electrically actuated dampers and blower in a duct system, and said airspace connected at the bottom to the interior of the room through an air filtering element. In the preferred embodiment, temperature sensors and electronic logic system provide control of air flow rate and valve settings to accomplish space ...

An improved through-type capacitor for use in electrical and electronic equipment which includes a metallic housing having upper and lower openings through a stepped portion, a capacitor element accommodated in the upper opening and further including a disc member with a central bore and electrodes provided on its opposite surfaces, a central conductor inserted through the central bore of the disc member so as to be secured for being electrically connected to one of the electrodes, with the othe...