Abstract:
Control system which may be manually operable, on the absence of pressure, said manual portion being automatically disengaged on pressure being provided to the system.
Abstract:
A valve actuator wherein the actuator housing structure includes reinforcing means such as rods capable of resisting forces exerted thereagainst by a force transmission device, such as a yoke and roller.
Abstract:
A disengageable, manually operable device for causing movement of a further object; the disengageable portion having a pair of mating threaded members, and facilities for separating them, thereby disengaging the device.
Abstract:
A reforming process in which a hydrocarbon feed containing aliphatic hydrocarbons is converted to a hydrocarbon product comprising an increased proportion of aromatics by passage over a reforming catalyst in a sequence of moving bed reactors operating under reforming conditions including moderate hydrogen pressure. The process is applicable when a former fixed moving bed reformer has been converted to moving bed reactor operation with the recycle and other ancillary equipment retained so that moderate pressure (hydrogen partial pressure at least 11 barg) is required, usually with a catalysts such as Pt/Re which tend to exhibit excessive hydrogenolysis activity in moving bed service. The recycle hydrogen stream is split with a portion going to at least one reactor subsequent to the first reactor.
Abstract:
This invention is directed to a system for detecting pressure drops in a flow line, the same being indicative of a line break. Reduced pressure is communicated to one side of a diaphragm. A similar reduction is communicated much more slowly to the other side by virtue of series connected oil reservoirs having an orifice therebetween. The pressure differential on opposite diaphragm sides causes valve closure.
Abstract:
An actuator of the type having a spring return portion, wherein the cylinder containing the spring forms a cartridge interchangeable on the housing with other cartridges, and the cartridge is so constructed as to negate the need for venting to atmosphere.
Abstract:
A pump having the usual suction and discharge check valves contained in a cartridge which may be removed and replaced without having to dismantle any of the other pump structure. The cartridge is in the form of a bolt-shaped member which is inserted into a bore in the pump cylinder and is provided with check valves and suitable communication means to position the check valves in control of the suction and discharge flows to and from the pump. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
Abstract:
A DENSE EXPLOSIVE COMPOSITION OF HIGH ENERGY IS MADE UP IN HEAVY SLURRY FORM PRIMARILY OF CONCENTRATED AWUEOUS SOLUTION OF A PERCHLORATE, PERFERABLY SODIUM PERCHLORATE, FINELY DIVIDED METALLIC ALUMINUM, A SELV-EXPLOSIVE SUCH AS TNT OR RDX, AND A LONG TERM STABLE THICKNER COMPRISING A GUAR GUM OR STARCH IN COMBINATION WITH AA XANTHAN GUM. SODIUM NITRATE MAY BE ADDED TO REDUCE FUDGE POINT.
Abstract:
A device for controlling unsteady motion of an actuator, wherein motion in one direction is relatively unrestrained, while motion in another is restrained. A movable member is positioned within a fluid-containing chamber. The chamber itself may move in the one direction but not in the other, whereon, motion of the movable member is opposed by the fluid.
Abstract:
A switching device for causing the opening and/or closing of one or more circuits. The device may include (1) pivotal handle, (2) cam, and (3) adjustable post means for adjusting the degree of motion necessary to activate individual switching mechanisms.