A declined conveyor for conveying articles in a downstream direction, which is parallel to a longitudinal direction, has one or more controlled conveyor sections interposed between gravity conveyors. Each controlled conveyor includes a plurality of driven rollers which are driven by a drive member disposed generally parallel to the longitudinal direction, and is operatively connected to a plurality of the driven rollers through O belts.

A process for the preparation of a particulate material by a controlled agglomeration method, i.e. a method that enables a controlled growth in particle size. The method is especially suitable for use in the preparation of pharmaceutical compositions containing a therapeutically and/or prophylactically active substance which has a relatively low aqueous solubility and/or which is subject to chemical decomposition. The process comprising i) spraying a first composition comprising a carrier, which...

A controlled oscillator circuit includes an amplifier including a first transistor coupled between a first node and a reference node, and a second transistor coupled between a second node and the reference node. The gate of first transistor and the gate of the second transistor may be cross-coupled. The oscillator may also include one or more variable capacitance circuits coupled between the first node and the second node, each including a first capacitor coupled between the first node and a thi...

An explosive initiator for a parachute rip cord release includes a hammer and firing spring mounted at one end of a cartridge chamber and an aneroid device and trigger mechanism mounted at its other end. A slidable sear extends along the cartridge chamber, connected at one end to the hammer and having a cam connection with the trigger mechanism at its other end. The normally uncocked hammer is manually cocked to slide the sear and thereby move the trigger mechanism into an operative position und...

A compact aneroid actuated explosive initiator for releasing a parachute upon descent to a predetermined altitude includes a firing pin releasably restrained by a rotatable sear that is urged toward release position. Cocking is achieved by compressing a driving spring without moving the firing pin, but concomitantly releasing a first restraint upon release of the sear. A second restraint upon release of the sear is provided by trigger levers under control of an aneroid barometer whereby the sear...

The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that co...

The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that co...

A hydraulic diaphragm valve comprising a housing, an inlet, an outlet, a diaphragm valve seating between the inlet and the outlet, a sealing diaphragm mounted in the housing and displaceable about the diaphragm valve seating, so as to close and open a flow path between the inlet and outlet, a valve control chamber and a command valve comprising a first duct communicating a one end thereof with the valve inlet, and at an opposite end thereof with a first command valve seating, a second duct commu...

The present invention is concerned with a controlled sampler device which draws a gas through a contaminant collection device. The controlled sampler comprises an inlet to the sampler; a pump adapted to draw a gas through the inlet; a reference element that provides a reference signal; a feedback element with an output; a differential pressure transducer to compare the reference signal with the feedback signal to provide an error signal that is linearly related to selected and measured values; a...

Insect pestilence is suppressed in a given area by limited injections of insecticide fogging spray at certain occasions of change of wind direction therein and essentially at no other time and in very high dilution and fineness of dispersion of droplets of carrier liquid seeded with micro-particles of insecticide. The method is preferably practiced automatically through the use of apparatus comprising interconnected wind responsive switching means, spray nozzle and valve means, carrier source me...