Abstract: The trap comprises a circumferential body portion formed of mesh material and having an open top and an open bottom. A top member is connected to the body portion and has a planar portion covering the open top of the body portion. A bottom member is connected to the body portion and has a planar portion covering the open bottom of the body portion. A first opening is formed in the trap and covered by a first closure member. The first opening is sized so as to allow a fisherman to place bait within the trap or remove shellfish caught. A second opening is formed in the trap and contains an elongated passage formed of mesh material. A trapdoor is connected to the inner end of the passage to permit a shellfish to enter the trap but inhibit the shellfish from exiting.

Abstract: A skate boot comprises a lower, upper and an intermediate portion between the lower and the upper. The lower includes a sole, toe and heel portions made of a molded unitary rigid plastics material. The intermediate portion is connected to the lower and includes ankle and Achilles tendon portions of the boot and is made of a relatively flexible material. The upper including the eyelet bands and the upper tendon guard are made of a pliable material. The construction allows forward flexure and torsional flexibility in the ankle area, foot forming moldability in the upper area of the boot and impact resistant rigidity in the lower.

Abstract: The device for installing batts of insulation in preexisting structures comprises a control sheet having a substantially flat elongated surface for receiving a batt of insulation, a first end having a handle, and a second end which is free for insertion into a wall opening, and a compressor sheet having a substantially flat enlongated surface for overlying the control sheet flat surface to compress a batt of insulation therebetween, a first end having a handle, and having a second end which is free for insertion into a wall opening. A latch is provided for connecting the control sheet second end to the compression sheet second end such that the sheets are maintained a predetermined distance apart to compress a batt of insulation and the compressor sheet second end and the control sheet second end overlie one another. The latch includes a release for releasing a batt of insulation after insertion into a wall opening.

Abstract: Disclosed is a transportation device comprised of a series of load carrying components connected together so that the distance between the components vary thereby allowing the components to move in a closed loop path. Rotatingly driven endless screws are positioned along the closed loop path and are engaged by a projection associated with the component as a particular component moves along a screw. The thread pitch of the screws is arranged to control the distance between adjacent component and the speed of the components.

Abstract: The present invention relates to a new type of chromatography technique, referred to as dynamic column chromatography, for separation of one or more compounds present in a solution, which is characterized by the existence of a moving solid adsorbent bed. According to the invention, the chromatographic system comprises a piston having at its bottom a sealing element and a longitudinal channel containing the adsorbent between two barriers and a test tube having at its bottom a multiple way valve. By pushing the piston into the test tube, the desired eluent which was prior forced through said valve is entering under intrinsic pressure of the closed system through the channel moving the adsorbed compounds to be separated between said barriers, the solution obtained going out through a nozzle located at one of the end parts of the piston.

Abstract: Disclosed are novel N-(hydroxy methyl)-1-amino alkane-1,1-diphosphonic acids and N,N-Bis-(hydroxy-methyl)-1-amino alkane-1,1-diphosphonic acids, preferably N-(hydroxy methyl)-1-amino ethane-1,1-diphosphonic acid, N,N-Bis-(hydroxy methyl)-1-amino ethane-1,1-diphosphonic acid, and their water-soluble salts. Also disclosed is a method for preparing these compounds by reacting the corresponding 1-amino alkane-1,1-diphosphonic acids with formaldehyde in an alkaline medium at elevated temperature. The new phosphonic acid compounds are excellent stabilizing agents for hydrogen peroxide-containing alkaline bleaching liquors, especially useful for bleaching cellulose fibers and blends thereof with synthetic fibers, such as polyester fibers.

Abstract: A mixing head for two reactive components, e.g. the components of a settable synthetic resin mixture, comprises a mixing chamber in which a plunger is shiftable to block and unblock the nozzle orifices and drive the reaction mixture from the chamber through an outlet. At least one of the nozzles is carried on a readily shifting slider which cooperates with a similarly shiftable obturating member to define a small premixing chamber, as desired, and deflect the mixture through at least 90.degree. within the mixing chamber. This system is especially effective for the mixing of reactive components which have hitherto been found to be difficult to mix with conventional mixing heads.

Abstract: In a turbocharged internal combustion engine, in order to optimize engine torque output spark timing control and boost pressure control are coordinated in such a manner that spark advance angle is adjusted only when the measured boost pressure equals a predetermined value and is allowed to vary only within a specified range advanced from a reference value derived from an empirical memory table on the basis of engine speed and boost pressure. When engine operating conditions are such that spark advance angle would fall outside of the specified range, spark advance angle is then held at the empirical value and boost pressure is adjusted in order to optimize engine torque. The coordinated control system can also be designed to respond to exhaust gas temperature on a first-priority basis, i.e., when exhaust temperature is sensed to be dangerously high, boost pressure is reduced regardless of other engine conditions.

Abstract: Cis-bicyclo[3.3.0]octane derivatives corresponding to the formula ##STR1## wherein R.sub.1 is hydrogen, a lower alkyl group or a cation and wherein R.sub.2 represents a cyclohexyl or an adamantyl group. In these compounds the phenyl radical may be arranged with respect to the double bond in the EZ- or in the E-configuration and at the carbon atom bearing the group R.sub.2 the molecule may have the RS- or S-configuration. The compounds are prepared by reacting compounds of the formulae ##STR2## wherein R.sub.1 and R.sub.2 have the same meaning as above and R.sub.6 represents hydrogen or a protecting group. Medicaments containing these compounds act as inhibitors of blood platelet aggregation and (in higher doses) as blood pressure lowering agents.

Abstract: The present application describes a light-sensitive copying material comprising a support and a light-sensitive layer which contains a surface-active polysiloxane comprised of dialkyl siloxane units and oxyalkylene units. By the addition of the polysiloxane a more uniform coating is achieved, even if only a single solvent is used for the coating solution.

Abstract: In a brake pressure control valve having two valve units arranged therein, there is disposed a free piston self-centering promoting arrangement. The arrangement comprises a shoulder portion of a hollow member which is retained in each valve unit to retain the substantially all essential parts in a casing, a radially outwardly projected portion of the free piston which is axially slidably received in the hollow plug with its outside end contacting with the pair, and an annular spring seat which supports one end of a biasing spring of the pressure control piston of the unit, wherein the spring seat is in abutment with both the shoulder portion and the radially outwardly projected portion at the same time when the free piston assumes its home position.

Abstract: Loading and unloading apparatus for a vehicle including a lifting frame having latches or hooks for attachment to a cargo body or platform, parallel motion links connecting the lifting frame to the vehicle, and hydraulic rams operable to move the links to move the load between a carrying position on the vehicle and a loading or unloading position at ground level behind the vehicle.

Abstract: A worm press for mechanically separating liquid/solid mixtures comprising a feed region and a pin-barrel pressing region. The worm has at least one flight, each of which flights is interrupted so as to enable the flight to pass the stationary pins in the pin-barrel region. The downstream ends or points of the worm flight portions formed by the interruptions are specially shaped in order to increase considerably the strength and service-life of the highly stressed points. This is achieved by reducing the size of the thrust flank, so that the flank subtends an angle of from 20.degree. to 50.degree. relative to the line perpendicular to the worm axis. Desirably, the thus-angled profiled tip region of the flight portions are interchangeable.

Abstract: In an extruder, for extruding thermoplastic synthetic material or rubber or for use for pressing water out of a material, a screw rotates in a cylindrical chamber and helical conveying lands provided on the screw are interrupted at positions at which pins project into the chamber thereby forming grooves to receive the pins. To sense breakage of a pin, for example caused by metal particles in the extrudate, signal-generating means are provided in a blind bore in each pin, receipt of a signal from the signal generating means causing the screw to be stopped from rotating thereby to prevent further damage.

Abstract: In a refrigerating system comprising a compressor, a condenser, a capillary tube, and an evaporator, there are provided a check valve on an inlet side of the condenser for preventing a reverse flow of refrigerant from the condenser to the compressor, and a differential valve connected to a delivery side of the condenser. One port of the differential valve is connected with the delivery side of the compressor, so that the differential valve interrupts the flow of the refrigerant from the condenser to the capillary tube upon interruption of the operation of the compressor thereby to improve the operational efficiency of the refrigerating system when the system is started again.

Abstract: The invention concerns a lock and related key of the electronic type, which bases the unlocking of the lock on the matching of codes memorized in the lock and in the key, making it possible for one key to unlock a considerable number of pre-selected locks.

Abstract: The invention pertains to a method for regulating the temperature in a greenhouse by insufflation of cooled air into the upper portion of the greenhouse, in case of overheating, and by heating of the lower portion of the greenhouse, in case of a cooling down of same, characterized in that it consists, in the case of overheating, in aspirating the warm air from the upper portion of the greenhouse; to cool this air down by means of a heat pump to a temperature of from about 8.degree. to 15.degree. C. below its initial temperature; to send this cooled down air, eventually with an addition of fresh air, in the upper portion of the greenhouse towards the top of the latter, in order not to perturb the lower area, while for reheating one uses the calories stocked by means of the above mentioned cooling process in at least one low temperature heating circuit provided for with this purpose in mind in the greenhouse. The invention relates also to installations for applying this method.

Abstract: In a method and a system for controlling an interstand tension in a continuous rolling mill having a looper provided between a pair of successive rolling stands and driven by a looper drive motor, a correction to the speed target value for the looper drive motor is determined in accordance with the deviation of a detected looper operating angle from an angle target value, and the looper drive motor is controlled in accordance with the speed of corrected speed target value.

Abstract: A lock-up control system is disclosed wherein the lock-up state of a torque converter is temporally released during gear shifting operation in an automatic transmission even if an automotive vehicle is operating in a predetermined lock-up range. A sensor generates an oil temperature compensation signal indicative of the temperature of oil used in the automatic transmission. The time duration of temporary release of the lock-up state is variable with variation in the oil temperature compensation signal.

Abstract: A remote control gear shift linkage system for a manual transmission comprises a manually operable control lever, a control rod connected between the control lever and the transmission for transmitting a movement of the control lever to the transmission to effect a gear shift, and a support rod supported on a vehicle body for supporting the control lever. In order to avoid unwanted influences of a resonance of the remote control linkage, a concentrated mass member is fastened to a portion of the support rod. The concentrated mass member may take the form of a sleeve fitted over the support rod or a solid bar fitted into the bore of the hollow support rod.