Abstract: An alarm and control system for semiconductor factories or the like wherein poisonous and inflammable treatment gases such as silane gas are used as in the manufacturing process of semiconductors, etc. is disclosed. Gas detecting means are provided at locations where the treatment gases are used, the gas detecting means utilizing metal oxide semiconductors containing platinum black as a detecting element for detecting the leakage of the treatment gases.

Abstract: A pit disposed between an unsecured area and a secured area is normally bridged by a generally flat platform which normally forms a continuation of a roadway. The plate is pivoted at the unsecured side of the pit and is normally supported at the protected side by a weight-responsive removable or frangible support so that an unapproved vehicle will cause the support to give 'way and let the platform swing down and thereby entrap the vehicle in the pit. A plate at the protected side of the pit normally lies in the plane of the platform and functions as an extension thereof. When the weight-responsive support gives 'way and the platform swings down, the plate swings up and forms a blast shield across the path of the force of an explosion of a bomb in the entrapped vehicle. When an approved vehicle is to cross into the secured area a normally inoperative support is engaged with the platform so as to bypass the weight-responsive support.

Abstract: A process and system for preparing vegetable oilseed meal for subsequent solvent extraction of the contained vegetable oil, comprising a screwpress section and extruding/expanding section, a common worm shaft (10, 11) rotating within a perforated barrel wall section (14) and a non-perforate barrel wall section (18) connected by an annular member (16) with water injection nozzles (17) therein. Meal enters at inlet (13); oil is extracted through wall (14); the meal enters section (18) at increased temperature and moisture content; its temperature is then increased further to a level at which the increased moisture content will flash off as the meal leaves the restricted orifice (19) thus increasing the porosity and extractability of the meal.

Abstract: An apparatus for cutting a moving material web of paper, cardboard or the ke to shape by burning with a deflectable laser beam focussed on the material web is provided, wherein an acousto-optical, frequency-dependent deflection means controlled as a function of the movement of the material web to be cut is used, the deflection element of which lies in the path of the laser beam.

Abstract: The terminal voltage of nickel-cadmium battery is measured while the battery is placed under a heavy discharge load during a predetermined short interval.

Abstract: A plant protection system which utilizes a housing and a heat source is disclosed. In one embodiment, the invention includes a truncated cone shaped housing which is positioned on the ground so as to surround the tree or other plant. The heat source may, for example, include a water pipe and spray emitter located within the housing to provide water in spray form near ground level adjacent the tree. A deep well may be used as the water source, thus providing water at a temperature higher than the ambient temperature. As the warm water spray rises within the housing, heat is transferred to the interior of the housing. An extension having side walls in the form of an inverted cone may be secured to the upper end of the housing to provide a further heating effect. Any of various designs and constructions for the housing and the extension may be employed. The heating means may also be provided from any of various sources and materials.

Abstract: A burner system, for example at a heating unit, comprising a burner of evaporation type for liquid fuel, for example Diesel oil, where fuel is intended via an inlet (5) to be supplied into a combustion space, preferably at the bottom (3) thereof, which combustion space preferably is substantially cylindric and open at the end (4) opposite to said bottom (3), and where preferably an ignition member (6), for example a glowing filament, is provided for the initial ignition of evaporated fuel, and where means (9,16,17,18) are provided for the supply of air to the combustion space.

Abstract: Building panel structures and methods for erecting buildings are described which utilize structural foam combined in a unique fashion with rigid framing members to provide low cost, energy efficient modular building structures which can be quickly and easily erected.

Abstract: A device for recovering oil floating on the surface of water comprising a framework (50) and a number of discs (51) rotatably mounted thereon. The framework is supported on floats (58,59) with the discs partly immersed in the water, and each disc is associated with a scraper (57) and chute (54) so that oil removed from the disc is deposited into a collection tray (52) from which it can be removed via line (53). Each disc (51) carries at least one axially directed concentric ring (4,5) which presents an inwardly directed surface (7,8). Each disc may carry a plurality of rings of the same or different axial depths.

Abstract: A joint connects an arm to a shaft. A split collar which clamps onto the shaft has a radial passage which registers with the transverse passage through the shaft and an end of the arm engages through the two passages. The split collar is clamped tightly onto the shaft and against the arm externally of the shaft.

Abstract: A door for refrigerating and freezing chambers, comprising a door frame supporting one or more glass panes for exposing refrigerated or frozen goods in said chamber through the door. According to the invention, the door frame comprises a section (6) capable to support the glass (4) associated with the door (1) along only one vertical edge (7) of the glass (4), at which edge (7) the door (1) is intended to be hingedly suspended in a door case. An inner longitudinal cavity (10) is located along the entire length of the section (6), in which cavity (10) a torsion spring (11) extends substantially along the entire length of the section (6), which torsion spring (11) is capable to be locked at one end relative to the section (6) and at its other end relative to said door case.

Abstract: A device for use in positioning and securing a door jamb in a level condition. The device includes a spacer plate assembly having outer end portions which extend beneath the inner portion of the sides of the jamb during the leveling process. A pair of bolt shaped members are threadedly received in the spacer plate assembly, one at each end thereof, to provide a means of raising and lowering the ends of the spacer plate assembly. A suitable level indicating unit such as a carpenter's level is also mounted on the spacer plate. The device further includes a pair of anchor base plates which are mounted in the floor, one at each end of the spacer plate, adjacent the lip extensions. The bolt members are rotated until the level indicating unit shows the spacer plate to be in a level condition, at which time each side of the door jamb is fixed to the respective anchor base plate by anchor screws or similar means.

Abstract: A device for exchangeably attaching tools on an industrial robot comprising an attachment device. According to the invention, the attachment device (1) comprises a first member (2) rigidly attached to the outer portion (4) of a robot arm (3) and a second member (5) intended to be rigidly attached to each of one or several tools (6), by which tools (6) the robot is to carry out operations. The first member (2) comprises an electric coil (10) capable in a magnetic way to attract said second member (5) whereby the members (2.5) are retained to each other when current flows through the coil (10). Said first member (2) and said second member (5) are provided with means (15-18;23,24,26) for transferring electric current and/or compressed air or vacuum or substances between a source connected to the first member (2) and a tool (6) attached to the second member (5).

Abstract: An insulated casing assembly for use in injecting steam into wells or transmitting steam from the generating source to the wellhead is disclosed. A plurality of interconnected casings are used, each casing have outer and inner tubular sections and an annular spacing between the two sections containing thermal insulation. Rigid weld rings connect and prevent relative movement between the corresponding ends of the two sections. A thermal and fluid sealing ring disposed between adjacent inner tubular section prevents ingress of steam into the coupling cavity. A threaded coupling screwed onto threaded ends of outer tubular sections joins adjacent casings together.

Abstract: A pneumatic spring counterbalance extensible link including a closed end cylinder with an end connector a piston and rod assembly within the cylinder and maintained therein by the crimped over end portion of the cylinder retaining a rod bushing and rod to cylinder seal. The cylinder is pressurized prior to assembly of the complete piston and rod into the cylinder. The piston assembly includes orifice by-pass arrangements either in the piston periphery or in a piston ring, and the piston may include a fail-safe provision in the event the orifice is clogged. A crimping die assembly is used in assembling and completing final assembly of the counterbalance components while simultaneously maintaining the link in a pressurized environment, utilizing sealed arrangement between the crimping dies to maintain pressurization of the interior of the dies and the counterbalance components prior to assembly of the components.

Abstract: A bale loader comprises a pair of arms pivoted to a wheeled frame and movable vertically. The arms carry, at their outer ends, a platform which is pivoted to the arms and movable between an upright position to a position parallel with the arms. The platform carries a pair of pivoted tynes which, when the platform is moved to the upright position, extend along the ground to engage beneath a bale. Hydraulic cylinders acting between the platform and the frame causes pivotal movement of the platform to lift the bale and a further cylinder lifts the platform and arms about the pivotal attachment to the frame whereby the bale is discharged to a feeder or the like. A movable carriage on the arms assists in discharge of the bale from the platform.

Abstract: A microwave antenna feed network dispenses with the conventional phase shifters. Instead, the required phase relationships between the different individual antenna components is achieved by means of a new device, known as a phase slope equalizer, placed in each feed line. This device is formed of a section of waveguide containing one or more resonant circuit elements. Each element comprises, for example, a pair of spaced inductive posts and capacitive tuning screw, or an inductive iris and a capacitive tuning screw, or a resonant slot. The phase slope equalizer exhibits a substantially constant slope phase shift/frequency response curve extending from a positive phase shift through zero phase shift at midband to a negative phase shift. The device is simpler and smaller than the conventional phase shifter and fewer are required thereby reducing costs.

Abstract: A nozzle (4,5) for an injection lance, which is intended for injecting primarily powderous material into a metal bath, such as a steel bath, freely in a bath or in a casting nozzle, and which comprises preferably an outer, preferably ceramic pipe (1) and an inner, preferably metallic pipe (2), in which said material is intended, usually pneumatically, to be transported all the way to the tip (3) of the lance, at which tip the powderous material is intended to pass out through at least one nozzle (4,5) comprising a through passageway (6) for said material.The nozzle according to the invention is especially characterized in that the nozzle (4,5) is made of a material with high wear resistance and with a fusion point, which is higher than the fusion point of the material, into which the injection is to be made, for example steel.

Abstract: A clamp support for securing an automobile body part to a ramp has a base secured to a ramp, an upwardly open socket on its base, and an upstanding post with oppositely extending arms, one higher than the other, upon either of which a clamp may be mounted. The post is insertable in the socket so as to dispose either arm beneath a vehicle supported on the ramp.

Abstract: A portable ice maker and container capable of utilizing available freezer space to provide additional ice-making capacity is disclosed. In one embodiment, the device includes a bucket-shaped vessel having a plurality of coiled strips arranged in a vertical stack with adjacent strips separated by a partition member, each coiled strip being in a horizontal position with the curvature of the coils arranged so as to be generally concentric with the central vertical axis of the vessel. A plurality of transverse ribs are attached at intervals along the length of each strip for use in defining the shape of the individual ice cubes.