Abstract: A telescope mount includes a generally planar support plate having at a forward end portion thereof an axial slot, a bracket to grip the barrel of a firearm and constrained by the slot for axial movement between selected locations along the barrel, means for releasably securing the bracket to the plate, and a fastening arrangement for securing the rearward end of the plate to the firearm. A cradle for receiving a scope is removably mounted to the support plate and could be removable therewith or by itself.

Abstract: An aerator for distributing air bubbles in the water of a bait-bucket or aquarium includes a porous hose having a wall in which a multiplicity of relatively small, in transverse cross-section, irregularly shaped, labyrinth-type channel provide many through-the-wall air-seepage passageways allowing air bubbles to enter the water. A small battery powered or A.C. pump is used to supply air to the hose.

Abstract: An over-the-hole mole trap which is triggered when a mole ejects dirt from the hole. The trap comprises frame, a spear, a spring, a trigger lever and a trigger plate. The frame has two legs and two vertical guide rods above the legs. The spear is between and parallel to the legs and the guides, and is surrounded by the spring. The trigger lever pivotally depends from one of the guides. The trigger plate is pivoted on the frame below the trigger lever substantially at ground level, and has a central opening receiving the spear, and an outboard portion for retaining the lower end of the trigger lever. The spear is held cocked by a base plate thereof engaging a side notch in the trigger lever. The spear is released when the trigger plate is raised by dirt ejected from the hole, lowering the outboard portion of the trigger plate to free the trigger lever and rfelease the spear to be thrust downwardly by the spring.

Abstract: A butterfly net is disclosed comprising a stocking cap-shaped netting open at one end thereof. The netting has a hem-line loop formed along the periphery of the open end. A flexible strip of finite length has one portion thereof threaded through the loop, and a second portion thereof extending outside the loop. The butterfly net is provided with an elongated handle member having a longitudinally extending opening. Guide means are provided adjacent the opening for guiding the second portion of the strip into the opening. An actuator is slidably mounted on the handle member, and is coupled to the second portion of the strip. The actuator is movable on the handle between a first position in which the one portion is of one length and the open end of the netting is fully opened, and a second position in which the one portion is of a smaller length and the open end of the netting is at least partially closed for capturing a butterfly.

Abstract: A plant fertilizer holder, which includes a below-ground needle or spike, and an above-ground figurine or handle, allows the user to insert or withdraw the spike into the ground of a potted plant. The below-ground portion is slotted to dimensions which allow a commercial plant food spike to be placed therein, and to be replaced when that amount is used up. The above-ground portion allows the user to periodically withdraw the spike to check to see if there remains any plant food, and to replace when that supply is exhausted.

Abstract: The present invention relates to a method of increasing the harvest yield in plant cultivation, the soil being supplied with plant nutrient depots comprising a mixture of bark, and peat, preferably provided with plant nutrient substances (N,P,K) and trace substances, said mixture being composted which are pressed in an extruder press to achieve the formation of pellets and dried to a water content of about 10-15% by weight.

Abstract: In the assembly of an auto glass window to the mounting bracket portion of the operator which raises and lowers the window, the improvements which consist of notches in opposite corners of the glass window bottom edge and cooperating tabs on the mounting bracket which bend forward over gripping surfaces formed by the notches, and thus engage the glass window more firmly than the prior art adhesive engagement, thereby obviating the loosening of the glass window particularly during descending movement thereof against the friction of the window tracking guides.

Abstract: A pet door comprises a hinged flap mounted within a fixed frame and pivotable to allow passage therethrough in both directions. A locking mechanism is provided comprising a slide with two projections thereon which, in different lateral positions of the slide, are aligned with corresponding projections or cut-outs on the flap to allow or prevent pivoting of the flap in one or both directions. The locking mechanism can thus be set as desired to allow free access in both directions, to allow access in one direction only (in or out as desired) or to prevent any opening of the flap.

Abstract: An improved latch and latchkeeping mechanism is provided for a gate closure for gates that close themselves. A detent mechanism is provided to allow the gate to be closed with the latch padlocked. Shock absorbing structure is also provided to absorb the shock of the closing gate.

Abstract: The invention includes a method and apparatus for automatic deburring of articles. The articles are placed in a barrel which is rotated so that the articles are deburred by centrifugal force. The barrel experiences two degrees of rotation. It rotates about its own axis, and it is also mounted on a rotating table. The table rotates in the opposite direction, and, in general, at a different speed, from that of the barrel. Separate motors rotate the barrel and the table independently. A releasable latch mechanism holds the barrel to the table. The table holds at least two barrels at once. The invention also provides a system which fully automates the deburring operation, and which is capable of processing a large quantity of articles with virtually no human intervention. The system includes conveyor and handler mechanisms which transport barrels between a filling station, a centrifugal deburring station, and a dumping station.

Abstract: A polishing bushing for polishing the end face of an optical fiber supported within a rigid sleeve includes a bushing base (31, 131) having a front surface (36, 136). The rigid sleeve (21, 21a) normally protrudes from beyond the front surface (36, 136) to permit the end face (14, 14a) of the optical fiber (12, 12a) carried therein to be polished. The bushing includes resilient portion (34) for permitting the rigid sleeve (21, 21a) to move longitudinally in passageway (38) to limit the force applied to the end face (14, 14a) of the fiber (12, 12a) by the polishing medium. The front surface (36, 136) of the bushing base (31, 131) is of spherical shape to produce a polished fiber end face (14) which is convex and which protrudes from the rigid sleeve (21) by less than about one micron, or is of flat shape to consistently produce a polished end face (14a) which is recessed within the sleeve ( 21a) by less than about one micron.

Abstract: Apparatus for the manufacture or working of the tooth system of straight or helically toothed, externally or internally toothed gears with a hyperboloidally or globoidally or similarly formed toothed tool, which has an abrasive surface or the like, wherein a crossed-axes angle is provided. The intermeshed workpiece-tool is guided by a pair of guide wheels. The working takes place on only one flank of a tooth. The workpiece or tool spindle is coupled with a reversible motor. A brake is provided on one of the spindles. A shiftable coupling and additional brakes or centrifugal masses can furthermore be provided.

Abstract: A buried vault for telecommunication equipment is disclosed. It is adapted to connect with telecommunication conduits, especially optical fiber conduits enclosing optical fibers. The vault encloses laser light generating devices for providing signals and also encloses suitable signal switch gear for telecommunication circuitry. The wall is constructed of alternating plies of glass fibers matting and woven roving, each layer being applied and joined with a polymeric resin. It is then covered with a light weight layer, the preferred form being balsa wood and the outside surface is then sprayed with a skin, typically a polyester resin co-mingled with chopped reinforcing fibers of random lengths randomly distributed or glass fibers matting and woven roving plies.

Abstract: Integral, elongated panels have sets of converging corrugations arranged on lines defined by folded, transversely triangular elements. These elements extend laterally across the panel, and are dimensioned such that a pair of adjacent parallel side edges of two corresponding panels can mate. Preferably, each corrugation has a planar element arranged on lines generally perpendicular to the side edge defining congruent elements with triangular faces meeting at the apex.By such arrangement, a panel is obtained which in conjunction with other such panels, can produce a curved surface, which curvature may be reversed in direction in any point along a structure surface, by inverting the next adjacent series of panels.

Abstract: An anchor for supporting guy wires for transmission towers and other structures. The anchor includes a cradle or base skid which supports a plurality of modular deadweight bodies which may interlock to increase the overall stability of the anchor.

Abstract: The present invention has a flange integrally formed with the wall which supports the glazed surfaces. The flange carries four ribs which are inclined toward the wall to form channels to carry any water which may pass through the roofing material away from the opening for the skylight unit. Further, the present invention uses wicking material to absorb any condensate on the interior of the glazed surfaces and carry the condensate out through the wall on the lower end of the unit.

Abstract: A method for installing a radiant barrier in a building, particularly on an attic floor, is carried out by randomly distributing shreds of a thin, reflective foil in an attic space to form a bed of foil shreds on the attic floor. The foil shreds reflect longwave radiation and thereby provide a radiant barrier which reduces radiant heat transfer in the attic space. An insulating material useful in such a method includes a bat of insulation disposed, for example, on an attic floor, and a bed of reflective foil shreds covering the layer of insulation.

Abstract: An anchor for use in slab facings comprises an anchor bolt (2), which has an inner end that is adapted to be inserted into and to be embedded in mortar in a hole (6) formed in a wall (7) to be faced and an outer end provided with a transverse rod (1) for insertion into at least one bore formed in at least one edge face of at least one facing slab (9). To ensure that the anchor can be economically fixed and that the facing slabs can be mounted quickly, the anchor bolt (2) is provided at its inner end with a cylindrical enlarged portion (4), which has an embossed or channeled peripheral surface, and the anchor bolt is provided between the transverse rod (1) and the enlarged portion (4) with a driving sleeve (3), which is slidably mounted on the bolt and has a serrated or finned surface, which is larger in outside diameter than the enlarged portion (4).

Abstract: A roof paver system includes a plurality of roof paver elements having alternating dovetail-shaped and tapered grooves and an upper surface having raised portions to generate vortices for preventing wind from lifting the elements and to provide a safety tread. Connector members are provided in some of the dovetail grooves to interconnect the roof paver elements to further prevent their displacement. The tapered grooves break the vacuum between the roof paver elements and the molds in which they are formed. Some of the dovetail grooves are composite grooves defined by the cooperation of adjacent roof paver elements. Clips are provided to mate with outwardly projecting toes on the roof paver elements in perimeter courses to align and anchor them, and elongate battens, which are dovetail-shaped in cross section, are received in the dovetail grooves and include openings for receiving thin elements transverse to the battens to engage the concrete elements at the ends of the grooves.

Abstract: An improved dome structure on a base is disclosed comprising of a membrane sandwiched between layers of rigidifying material such as shotcrete which also serve to embed the circumferential and radial prestressing members. Circumferential prestressing can be applied to minimize bursting stresses. Further layers of rigidifying material can then be applied over the circumferential prestressing as a final protection and cover. The radial prestressing materials can contain spacers or hooks to preclude the circumferential prestressing material from riding up on the structure. The lower portion of the dome can include a reverse curvature to minimize stresses and stabilize the structure.

Abstract: Apparatus for loading trays with cut product typically meat chops is described, comprising a delivery conveyor (22) onto which are delivered the pieces of cut product (76) in sequence for movement to a delivery station (26), a tray conveyor (32) extending transversely to the delivery conveyor (22) and adapted to deliver in succession each of a plurality of trays (90) to the delivery station to receive cut product, and a product detector (94, 96) at the delivery station to detect the passage of each piece of cut product therethrough. The tray conveyor drive (230) operates in response to the detection of cut pieces by the detector (94, 96) to move the tray conveyor through a small amount sufficient to present the next available region of a tray to the delivery station, to receive the next piece of cut product so as to fill each tray in turn. A transfer conveyor (34) downstream from the delivery station moves the filled trays away from the delivery station.

Abstract: An improvement in method and apparatus for continuously folding, heating, and tacking to the sides of the package panel the excess packaging material created by forming the package from a web of polyfoil material is disclosed. The method and apparatus is particularly useful in form, fill, and seal machines that form a plurality of aseptic sealed packages from a continuously advancing tube filled with a product, and incorporate a plurality of package receiving means mounted on a continuously advancing structure that forms sealed product filled packages into rectangular finished bricks by squaring the package, heating the excess material, folding the excess material against the package until it cools to thereby tack it.

Abstract: Automatic packaging machine, in particular for bags with at least one flattened edge, comprising a frame which downwardly supports a lateral magazine of flattened boxes, an assembly for folding individual boxes to a parallelpipedal shape and an assembly for closing the bottom and transferring boxes into a filling area. The frame upwardly supports a bag feed line ending at the inlets of two co-planar, parallel and lateral transport lines for arranging side to side the bags. The transfer lines end at the machine filling area, where an assembly is provided for transferring groups of bags in the underlying box with the bottoms thereof substantially resting against the counterposed side walls of the box.

Abstract: The invention relates to a device for packaging a row of covers placed coaxially of one another in a sheet of packaging material, comprising successively in the packaging direction: a feed station for the row of covers; a wrapping station for wrapping said row of covers in said sheet; a folding station for folding end wall and longitudinal fold edges of the sheet wrapped around the row of covers; and adhesive station for adhering fold edges to the packaging; and transport means for transporting the row of covers, which is characterized in that the folding station comprises gripping means gripping onto the wrapped packaging material from outside, which means hold the packaging material away from the row of covers during forming of the longitudinal fold.

Abstract: An apparatus for sealing medication blister cards including a unit dose of medication in at least one, if not all, of the blisters comprising card. More particularly, the apparatus includes a card holder for receiving the filled medication card and a heated sealing head movable into juxtaposition with the top surface of the filled card so as to apply both heat and pressure to the card as it is held between the card holder and the heated sealing head. First and second ridges extend upwardly from the card holder into engagement with the bottom of the medication blister card, and the contacting surface of the heated sealing head is knurled. Accordingly, as the card is held and heated between the card holder and the sealing head, the application of pressure and heat not only seals the card, but also the ridges and knurling effectively form channels whereby moisture present in the card is expelled therefrom and condenses on the card holder.

Abstract: The package of the present invention comprises a sheath formed from a folded, relatively rigid strip having structure for receiving and releasably holding the ends of the fiber to be packaged. In a preferred embodiment, the fiber is between the two folded over parts of the strip with the ends of the fiber anchored in place in a pair of slits. The sheath is in a pouch formed by a pair of foil members on opposite sides of the sheath. When ready for use, the package is opened by peeling the foil members apart, thereby exposing the sheath and permitting access to the fiber carried by the sheath. An improved apparatus and method are provided to form the package. In the first instance, the sheath is prepared by first folding a strip of relatively rigid material, such as siliconized polyester, then moving the folded strip along a path of travel and feeding the fiber into the region between the parts of the strip as the strip moves.

Abstract: The present invention provides a method and apparatus for rapidly opening envelope flaps to facilitate the rapid insertion of letters and other inserts. The apparatus comprises means for conveying an envelope having a closed flap, suction means including a suction member mounted on a rotatable shaft in communication with a vacuum source that is sufficient to allow the suction member to engage the surface of the closed envelope flap and rotate the flap away from the plane of the envelope without impeding advancement of the envelope along the conveyor means, and a stationary plow member positioned adjacent and downstream of the suction member to fully open the envelope flap.

Abstract: In a combine harvester, an array of ground engaging skid shoes or feelers spans the header platform and is divided into right- and left-hand groups, each group associated with a position sensor switch. Each switch transmits to an electrohydraulic control system, a signal representative of the relative position of the skid shoe closest to the ground in its half of the platform. The combined left- and/or right-hand signals are transduced to control platform vertical adjustment and lateral tilt automatically. In one embodiment, a pair of lift cylinders, acting in unison, control platform elevation while a third cylinder is dedicated to tilt control. In other embodiments, paired lift cylinders are controllable independently, to provide both height and tilt control.

Abstract: An agricultural machine has a machine frame adapted to move along the ground in a normal travel direction, a crop cutter on the front of the frame, and a crop comminuter carried on the frame behind the cutter. An intake device including a generally fixed feed element on the frame and another feed element displaceable on the frame toward and away from the fixed feed element is operated by a stoppable drive connected to the fixed feed element to feed the cut crop as a stream back in the transport direction to the comminuter. The displaceable element compacts the stream of cut crop against the fixed feed element. An accelerometer is connected between the displaceable feed element and the frame for joint displacement with the displaceable feed element and generates an output corresponding to acceleration of the displaceable feed element toward and away from the fixed element. The machine may also have an alarm.

Abstract: A reel for a harvesting machine comprises a plurality of bats arranged for rotation around an axis defined by a shaft. The bats are pivotal about a bat axis parallel to the shaft and are driven in pivoting movement by an eccentric ring member interconnected to each of the bats by a rigid link controlled by the eccentric ring member. The ring member is free to rotate relative to the shaft but is driven by each in turn of the links when the respective bat reaches an extreme position as defined by a sliding link coupled between the rigid link and the ring member. The bats comprise folded sheet metal in tubular form defining a plurality of pockets each for receiving a plastics finger for projecting from a leading edge of the bat. Each bat is formed from separate bat portions coupled together by tubes extending into an end of the bat and bolted to the tubes so as to depress material from the bat into a punched hole formed in a groove in the tube.

Abstract: Means to control imbalance of an eccentric mass connected to a rotating shaft in a shaker housing wherein the eccentric mass is adjacent to but is not fixedly connected to the shaft, wherein a first end of the mass is connected to a mass moving means which can move one end of the mass to a plurality of different distances from the rotating shaft, and is able to hold that end of the mass at each of these distances during rotation; wherein a second end of the mass is restrained from centrifugal movement during rotation of the shaft.

Abstract: The invention relates to a machine for working grass, hay or other crops on the field, provided with two rake members which are drivable about upwardly directed axes of rotation. During operation, the distance between the rake members can be changed by controls at the seat of the tractor on which the machine is mounted to adapt the machine to various circumstances. The machine is provided with swath forming crop guide members, the relative positions of which are automatically adapted to remain about the same irrespective of the distance between the rake members.

Abstract: A conventional rake includes a stripper bar on the teeth which is movable by a push rod on the handle of the rake from a raised raking position to a lowered leaf push-off position. A spring clip holds the stripper bar in the raised position and may be assisted by a releasable guide element on the handle engaging the push rod.

Abstract: An automatic spindle with a propeller guide and a hook provided in front of an extension of the propeller guide, the hook being attached to a filament for preparatory spinning, the back-pull given by virtue of such an arrangement serving to bring the propeller guide upwards so that a positioning rotation may be produced upon the frontal tip of the propeller guide as a plurality of engaging teeth provided over the perimeter of the sleeve that is acting upon and as fitted to the perimeter of the propeller guide are engaged respectively in the helical threads over the propeller guide. Thus the string or rope fastened to the frontal tip of the propeller guide can be twisted. A feeder is clamped to the tail end of a hand cone to accommodate the mounting of wires meant for spinning processing, and the front end of the hand cone is fitted with a clipper, thereby serving to feed the wire straight by means of the feeder in the exercise of fastening of objects, and to cut the wires.

Abstract: A conductive yarn includes a continuous non-conductive carrier thread having a relatively low modulus of elasticity; a continuous metal thread; and the carrier thread being wrapped around the metal thread. A process for making such conductive yarn includes the steps of pulling the continuous metal thread off a first package; pulling the continuous carrier thread off a second package; applying a relatively high tension to the carrier thread with respect to the tension on the metal thread as both threads are being pulled off their respective packages; and wrapping the tensioned carrier thread around the pulled metal thread. Apparatus for performing the method is also provided.

Abstract: An unbonded PC steel strand used for posttensioning concrete comprising a PC steel strand composed of a plurality of stranded wires, a thin transparent lacquer coating on the outer surface of the PC steel strand, the lacquer coating being able to be broken when the PC steel strand is subjected to tension or posttensioning concrete, a filler applied around the lacquer coating, and a synthetic resin sheath covering the lacquer and filler coated PC steel strand. A method of manufacturing the unbond PC steel strand comprising steps of annealing the PC steel strand at a low temperature to remove strain, coating the outer surface of the PC steel strand with lacquer, applying a greaselike corrosion inhibitor to the surface of this lacquer coating, and sheating the coated PC steel strand with an outer synthetic resin sheath.

Abstract: A method and apparatus for the manufacture of a glass fiber bulk strand roving which is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another to form a composite entangled structure. The roving which is produced by the method and apparatus of the present invention is made by a process that uses an array of inwardly projecting fingers to form axially extending loops in the strands and a spinner with an inlet that is positioned adjacent the fingers.

Abstract: A gas turbine drive (1) is presented, for which an auxiliary device power unit (16) can be coupled alternately with the low-pressure rotor (2) or the high-pressure rotor (3).

Abstract: An earth-moving machine has an automatic device for minimizing the running speed of the main engine when no power is required by the hydraulic actuators. This device establishes a predetermined hydraulic fluid flow-rate in the servocontrol in the non-neutral position of the servocontrol itself. This flow-rate is indicated by an on-off flow-rate sensor inserted in the auxiliary hydraulic control circuit between the pump and the servocontrols, this sensor controlling the variation in the operating condition of the injection pump of the main engine by means of an electromagnet.

Abstract: A hydraulically operated automotive transmission on an automobile includes a hydraulic pump coupled to an engine-operated input shaft, a hydraulic motor coupled to a wheel-driving output shaft, a closed hydraulic circuit connected between the hydraulic pump and the hydraulic motor, and a bypass passage connected between the inlet and outlet ports of the hydraulic pump in bypassing relation to the hydraulic motor. A clutch control system combined with the transmission comprises a clutch valve disposed in the bypass passage for selectively opening and closing the bypass passage, and an automatic control device coupled to the clutch valve for controlling the operation of the clutch valve. The automatic control device opens the clutch valve to a first extent which prevents the automobile from creeping while the engine is idling, and closes the clutch valve to a second extent which prevents the engine from racing when the automobile is started.

Abstract: An improved free piston power unit includes a pair of power pistons at opposite ends of a common power cylinder, wherein the power pistons are linked for reciprocation in unison in opposite directions. The power pistons carry a respective pair of compressor pistons disposed within compressor cylinders to generate a supply of compressed air or the like upon power piston reciprocation. The power pistons further cooperate with a respective pair of gas-containing bounce cylinders which provide pneumatic reaction forces to return the power pistons through a compresion stroke at the conclusion of a combustion expansion stroke. The bounce cylinders each have a relieved end face to provide an increased minimum bounce cylinder volume thereby limiting the maximum pressure and temperature to which the bounce cylinders are subjected, without requiring increase in the overall envelope size for the power unit.

Abstract: An internal combustion engine turbo-supercharger including a turbine disc; a cast turbine housing defining an inlet for connection to an engine exhaust manifold, an exhaust port for discharging exhaust gases, a turbine chamber enclosing the turbine disc, and a convoluted passage extending between the inlet and the periphery of the turbine disc; an individual metallic partition plate disposed in the housing and separating the convoluted passage into first and second passages each providing communication between the inlet and the periphery of the turbine disc; and a valve disposed in the first passage and operable to control flow therethrough.

Abstract: A variable geometry turbine system for internal combustion engine turbochargers is provided which comprises a turbine wheel and a meridionally divided volute having first and second volute passageways defining first and second turbine inlet openings for the flow of exhaust gas from the passageways into the turbine wheel. The system further includes closure means movable betwen a first position in which both from both volute passageways to flow into the turbine turbine inlet openings are open to permit exhaust gas wheel to provide a mixed-flow turbine during periods of high engine speed; and a second position closing the first turbine inlet opening to permit exhaust gas from only the second volute passageway to flow into the turbine wheel to provide an axial-flow turbine during periods of reduced engine speed. The closure means of the system can further include valve means for diverting during periods of reduced engine speed.

Abstract: Geothermal energy may be recovered through an underground well drilled to a depth approaching the earth's magma by circulation of injected heat transfer fluids flowing along separate parallel paths within closed loops extending into the well. One or more of the injected fluids may be conducted by a heat transfer portion of the loop establishing a lower heat absorbing zone within the well exposed to superheating conditions at ultra-deep depths. Circulation of the fluid within said heat transfer portion may be prolonged to efficiently absorb heat and heat loss may be minimized by heat exchange relationships between the parallel flow paths above the lower heat absorbing zone.

Abstract: In a device for degassing the feed-water line in the cycle of, for example, a nuclear heated electricity generating plant, steam bubbles are introduced into the condensate beneath the water level in the condensate collecting vessel via spray nozzles in order to solve the acute steam generator corrosion problems. For this purpose, a flow channel, in which the condensate follows a particular path to the hot well is provided in the vessel. Several spray nozzles are provided spaced out in the flow direction of the condensate. The steam/gas mixture escaping from the condensate is guided in counterflow to a steam balance opening which is located in the intermediate floor in the entry region of the flow channel the intermediate floor screening the vessel from the condensation space of the condenser.

Abstract: An integrated power system is located adjacent a body of saline water. The power system includes a solar powered and a wind driven engine. Desalinization and electrolysis of the water is provided. The system produces carbon dioxide and hydrogen which are used to generate methanol. The methanol can be used as a fuel to drive a combustion engine.

Abstract: Known porous laminates of the kind wherein ambient atmosphere each side of the laminate is connected via holes and passageways, the latter lying within the laminate thickness in planes parallel with the faying faces, suffer from airflow energy loss which arises from the changes in direction undergone by the airflow while in transit from one side of the laminate to the other side thereof. The invention provides extra holes on the high pressure side of the laminate, over those points in the passages wherein the greatest change in direction of flow occurs, so as to re-energize the airflow which has reached those points via the relevant holes of the known arrangement.

Abstract: Animal or plant derived materials are prepared for extraction of desired substances therefrom by grinding said materials at or below their Brittleness Temperature. This treatment allows fracture of the materials into small particles with high surface area to volume, as well as high volume to mass ratios, and disrupts membranes of tissues, organs, cells or organelles which would otherwise prevent or limit separation of desired biomolecules.

Abstract: A refrigerant recovery device comprises a pressure vessel filled with packings, such as Berl saddles, that provide a large surface area for mass transfer. The vessel is partly filled with a refrigeration-quality oil. The pressure vessel is mounted on a stand and pivoted so that it can easily be inverted periodically for coating the packing material with the oil. A flexible hose connects the vessel with a refrigeration or air conditioning unit, and a shut off valve is provided as is a check valve which prevents out flow of oil from the vessel. The oil in the vessel absorbs the refrigerant, and causes its partial pressure in the vessel to be reduced, so that refrigerant vapor flows from the refrigeration or air conditioning unit into the vessel. After the refrigerant has been absorbed, the valve can be closed, and the vessel returned to a central site for reclamation.

Abstract: Method and apparatus of discharging non-condensable gases from the circuit of a compression refrigeration machine, wherein a part of the circuit through which there is no flow is indirectly cooled by a smaller secondary refrigeration machine in order to condense the condensable refrigerant vapor in that part and thus to lower the content of non-condensable gases to be discharged in that part, whereby the value of the suction pressure of the refrigerant circuit of the secondary refrigerating machine is used for automatically starting and stopping the discharge of non-condensable gases.