Abstract: A coupler for connecting a hose to an engine exhaust duct for conveying products of combustion to the outside of an enclosed area. Permanent magnets enable mounting of the coupler to be quickly made. A handle spaced from the coupler bracket enables the magnetic attraction between the coupler and the engine block to be broken without touching the hot metal. A spring tensioned gas tube is urged into engagement with the engine exhaust duct when the coupler is in operative position.

Abstract: The plasminogen content of a blood sample is measured by determining the rate of formation of fibrin in a sample in which antiplasmin-free plasminogen is activated to form plasmin before the onset of fibrin formation so that the plasmin-conditioned break-down of the fibrin occurs simultaneously with formation of fibrin.

Abstract: A hollow container having two chambers separated by a diaphragm. A flowable explosive is carried in one chamber and an incompressible fluid is forced into the other chamber as needed, thereby flexing the diaphragm and forcing out the explosive into a dispensing hose. The dispensing hose includes a nozzle with a seal for placing the explosive in a bore hole. The explosive being dispensed can be accurately metered.

Abstract: A temperature measuring device for use at pressures in excess of 1,500 bar. It comprises a thermocouple which is sheathed, the sheath being surrounded from end to end by an open ended pressure bearing sleeve. The space between the sheath and sleeve receives a hard or high temperature solder. At the outer end of the sleeve is a rigid cone or outwardly flared surface associated with a screw threaded nut which, when tightened, forces the cone against a shoulder to effect a fluid-tight connection at a point remote from the measuring junction.

Abstract: A collapsible chopping spade comprises a shaft with a tool joint at one end and a handle joint at the other end so that both the tool and the handle can be folded against the shaft. A unitary locking arrangement is provided for securing the handle in either its operative or its folded away position and for securing the tool in either of two operative positions or in its folded away position, the arrangement being such that the handle joint cannot be locked with simultaneously locking the tool joint.

Abstract: A system for holding a substantially constant pressure level in the medium pressure steam system of an integrated plant, despite any sudden shutdown of a high pressure steam turbine. A combination quick-opening and a control valve is provided with a hold-down operator and positioning actuator with a spring drive, the hold-down operator being connected through a changeover valve with a working pressure system. The positioning actuator is connected to an additional change-over valve and to the outlet of the pressure controller, such additional change-over valve being provided with a connecting line to the outlet of the pressure controller and to the outlet of a multiplier relay. The two change-over valves are actuated through the turbine trip system. The combination quick-opening and control valve has an operating lever mounted on a fixed fulcrum pivoted on the piston rod of another pneumatic drive.

Abstract: On an upright support is an apparatus including a pair of relatively movable jaws between which a tubular frame member of a bicycle is securely clamped. One jaw has a rigid short sleeve terminating in a circular row of teeth adapted to mesh and lock with a similar circular row of teeth on the end of a rigid tube support in dentil fashion. Extending through the tube support is a shaft fixed to the short sleeve, which has a bushing bearing in the tube support. By a manually adjustable nut and screw device, the rows of teeth can be separated to enable the jaws to revolve thereby to position the bicycle in the most convenient work position. A manually adjustable nut and screw device enable the clamping jaws to be tightened or released.

Abstract: Junction elements for pneumatic conveyor systems for use in, for example, power stations include a pair of intersecting arms and an impact plate at the outside of the junction between the arms. The impact plate is reinforced by a reinforcing plate which is held by screw clamps in a frame fixed to the impact plate.

Abstract: Apparatus for distributing concrete comprises a jib rotatably mounted on a tower, with a conveyor pipe line mounted on the end thereof so as to be movable about horizontal and vertical axes. The pipe line is formed in several sections which are connected one below the other by pivotal joints with horizontal axes.

Abstract: A can or drum changing device for fiber spinning plants in which multi-fiber yarn supplied continuously from a textile finishing machine is fed into cans or drums for intermediate storage. The can or drum which is to be filled is placed on a fixed or movable platform, and the can changing device enables the filled can to be exchanged for an empty one. Both cans or drums are lifted before starting the changing procedure, and both lifting devices have a common pivot so that during the changing procedure, both cans approach each other and are freely suspended without interferring with each other. When the multi-fiber yarn from the textile finishing machine has filled one can, the continuous yarn is then transferred to the juxtaposed empty can, both cans being placed so close together at that time that the yarn cannot drop between them. The filled can is then lifted from the rotary table and the empty can is lowered onto such table.

Abstract: An auxiliary signal for the compensation of the difference signal created in optical-pneumatic receivers due to the absorption of radiation, such compensation being achieved by one or more electrical-pneumatic transmitters connected directly to the receiver chambers.

Abstract: A radiation receiver including three receiver layers for infrared gas analysis. The first and third layers are connected in parallel, and their pressure is compared with that of the second or middle layer to derive a pressure difference which compensates for certain measurement problems found in prior art devices.

Abstract: A device for forming a jack-o-lantern, which is attached embracingly to a pumpkin and comprises two curved plates engaging opposite sides of the pumpkin and retained in place by cords which are laced through the adjacent edge portions of the plates. In one plate, called the main plate, are holes generally locating the eyes, nose and mouth which are to be cut from the pumpkin. A tool having a cutter is provided for each of the eyes, nose and mouth, and these are respectively mounted on the main plate. By manipulation of the tools, holes are cut appropriately in the pumpkin. The tools are operated individually by screw action, and after the forming operation is completed, the plates are unlaced and removed from the pumpkin.

Abstract: A process for the production of hydrogen/deuterium-containing gas in which the enriched condensate obtained from the production of a hydrogen/deuterium-containing gas mixture is collected and subjected to a direct exchange of isotopes with the feedsteam admitted to the process. Such condensate can be brought into direct exchange of isotopes with the gas water vapour mixture within the process, viz. ahead of the CO conversion section. The exchange of isotopes may be performed according to the counter-current principle. If it is intended to maintain in the hydrogen/deuterium-containing gas a certain definite content of water vapour whose phase condition is superior to the condition achieved when using normal cooling water, this gas, at least 0.6 kg/m.sup.3 of gas, is subjected to an exchange of isotopes with the water fed additionally into the process.

Abstract: A control for a water closet, enabling the valve actuating float to be adjusted from outside of the tank to enable a relatively small volume of water to be normally introduced to the tank for flushing purposes. By actuation of a simple control, the float may be allowed to rise to a predetermined position at which considerably greater volume of flushing water is made available to handle an increased amount of waste. In this manner, an appreciable economy of water is achieved in a simple and efficient manner. When the control is actuated so that the greater volume of water is made available for flushing, the mechanism is such that after flushing the control automatically resumes its position to admit thereafter the smaller volume of water.

Abstract: A bipolar multiple electrolytic cell having an alkali-chlorine diaphragm cell for obtaining caustic solution, chlorine and hydrogen in which the titanium metal electrodes act on one side as the anode and on the other as the cathode, the anode side being coated with a metal or metal oxide for activation purposes, and the cathode side having a dense coating of metal alloy of nickel and elements of the Group III or V of the periodic system, which is applied chemically, preferably by employing the so-called "Kanigen" process.

Abstract: A method for the reprocessing of cell liquor from diaphragm cell electrolysis plants that operate on potassium chloride brine. The cell liquor is contacted with an SO.sub.2 -bearing gas, and the effluent solution is oxidized with an oxygen-bearing gas, then a definite quantity of KCl is added to said oxidized solution, and this solution is subjected to a filtration and precipitation step, and finally it is then recycled as make-up brine to the electrolysis cell plant.

Abstract: Document filing apparatus comprising two rails adapted for mounting on opposite side edges of a drawer or the like container for converting the drawer to contain documents or files in a suspended filing system and a plurality of tabs which are attachable to the documents or files and which can be slidably mounted on the rails. Each rail comprises a channel shaped portion having two side walls joined by a web, which is adapted to embrace the edge of the drawer to locate the rail on the drawer edge, and a flange projecting outwardly from one of the side walls of the rail to slidably carry an end of each tab. The flange has a horizontal guideway surface for the tab and a rib spaced from the side wall of the rail which locates in a recess formed in the tab to locate the tab on the rail and resist accidental dislodgement of the tab from the rail.

Abstract: A device for performing catalytic endothermic reactions which comprises a vessel having a heat exchanger provided with cooling tubes which extend through an outer tubesheet of the heat exchanger. These tubes are sealed against the outer tubesheet of the heat exchanger, and are connected rigidly to the inner tubesheet. Reaction tubes are provided with catalyst support grids, and the sections of these tubes below the grids are of a length that is at least equal to the diameter of the respective tubes. Downstream of the support grids, the process gas discharge tubes extend centrally through the catalyst-free portions of the reaction tubes and are spaced from the inner walls of the cooling tubes. The spaces between the process gas discharge tubes and the reaction tubes are filled with insulating material. The process gas discharge tubes, which are disposed within the cooling tubes, may extend to or beyond the outer tubesheets of the heat exchanger.