Abstract: A container for an industry hall which can be assembled to an industry hall or similar and alternatively to a package or container, which fulfils the international regulations concerning dimensions and strength. The roof support member of the industry hall consists of two interconnected roof support beams (4). Each roof support beam has an upper (5) and a lower (6) longitudinal girder. Two roof support beams (4) are interconnected having respective upper longitudinal girder (5) abutting each other, thereby forming a rectangular composite frame 8. This rectangular composite frame forms side surfaces and the outer boundary of the container. Two such rectangular composite frames are placed alongside and spaced from each other and are interconnected by means of mounting beams (7). The remaining parts of the industry hall are placed in a suitable way inside the frame of the container formed in this way.

Abstract: This security device for basement windows consists primarily of a pair of parallel spaced-apart bars secured over the window. It further includes carriage bolts extending through the concrete or cinder blocks, which also extend into a pair of channel members, and the bolts receive nuts that are enclosed in the channel members, and are rotated by a special off-set wrench, which is entered into an opening in a wall of the channel members.

Abstract: An improved modular screw anchor is provided which is adaptable for use with many sizes of elongated anchor rods, is inexpensive to manufacture, can be installed in a wide variety of soil conditions including rocky soils, and permits use of a number of wrench tubes having different internal dimensions. The anchor preferably includes two main components, namely an elongated anchor rod having an obliquely oriented, beveled earth-penetrating lead at one end, and a polygonal in cross-section drive boss separated from the lead by an enlarged, annular flange, and, secondly, an anchor member having a bore-defining hub, an outwardly extending, helical blade circumferentially secured to the hub, and an apertured plate affixed across the bore of the hub. The anchor rod and anchor member are interfitted for installation by inserting the rod through the apertured plate of the hub until the drive boss extends through the aperture and the flange abuts the apertured plate.

Abstract: A frame which serves to cover a wall opening for a door, or to cover an existing old door frame. The frame includes a liner located before the wall opening soffit, and at least one covering arranged at right angles along at least one edge of the liner, which covering comprises a U-shaped, thin-walled profiled sheet. At least one rail extending in the longitudinal direction of the profiled member is arranged on the inner side of the base of the member for receiving fastening dowels which can be shifted in the rail; the fastening dowels can be inserted in wall-side bores. That leg of the profiled sheet member which faces the wall opening projects beyond the plane of the wall opening soffit. The plate-like liner is placed or mounted on the outer side of the leg. The liner is fastened by an insertable connection and is held together with the profiled member thereby.

Abstract: An intumescent composite comprising a layer of intumescent sheet material having a restraining layer laminated thereto provides a superior intumescent barrier for use in sealing penetrations through floors, partitions and ceilings from smoke, fire, gas and water passage. The restraining layer causes the intumescent reaction to be generated in a directionalized manner and can be utilized to assure that the penetration cavity is optimally filled. The intumescent composite can have holes punched in it and can be used in fire protection applications where air circulation is desired. In the event of a fire, the expansion of the intumescent composite is in a direction which enable the punched holes to be quickly filled.

Abstract: Walls and partitions are constructed by securing wallboard panels to a substructure, such as one of conventional metal or other framing members, by a series of concealed fastening clips, some of which are affixed to the framing members by nail or screw fasteners and others of which, while not held to the framing members, help hold adjacent wallboard panels together and in alignment with each other at the panel sides, which are usually in abutting relationship. The fastening clips are made from sheet or strip material and include a base portion having a substructure contacting surface and a panel contacting surface spaced apart by intermediate strengthening walls, a web portion at about a right angle to the base portion and tab means extending from the web portion and suitable for entering the side of the panel to which the clip is to be appended.

Abstract: Readily separable positively locking panel fasteners are described which are useful for holding panels together at sides thereof and to framing members; such as wooden or metal studs, to make walls, partitions or other structures incorporating side-abutting panels, such as wallboard panels. Mounting means for holding the panels together and to the framing member include engageable pairs of different panel fasteners, with one in each such pair being adapted to be held to a wallboard panel at a side thereof and to be fastened to a framing member, which fastener comprises a catch member, and to the other fastener of such pair being adapted to be held to another wallboard panel, which is to be installed in side-abutting or similar relationship to the other panel by means of fasteners which comprise a latch member which is engageable with the catch member of the other type of fastener.

Abstract: An insulated exterior building wall structure with a moisture-impervious insulation board on the exterior side of the wall, with moisture venting grooves on the inner surface of the board.

Abstract: A body for use in a membrane anchor system made of resilient metal a central region with an opening therein, a downwardly sloping region and a peripheral region outwardly of the downwardly sloping region. An anchor system including said body, wherein a linear fastener extends through the body and through a membrane, and mastic is placed between the body and the membrane.An anchor system utilizing the said body, and having a sheet of water-impervious material extending over and beyond the body, and adhered to the body and the membrane.

Abstract: A joint retention clip for use in a rib-like joint formed by overlapping male and female partial ribs of adjacent panel members in a roof or wall structure. The joint retention clip maintains the partial ribs of the rib-like joint in assembled relation in the region between adjacent panel supports. The joint retention clip resides entirely on the protected side of a sealant bead and is thus not subject to corrosion; and exhibits improved resistance to applied vertical loads.

Abstract: A reinforced-concrete column reinforcement comprises at least two hoops centered on and spaced apart along an axis and a plurality of deformable holders fixed at angular spacings on these hoops. Respective longitudinal reinforcement bars each extend axially through one of the holders of one of the hoops and through a respective one of the holders of the other of the hoops. The holders grip these bars. A helicoidal wrapping wire generally centered on the axis is welded to axially extending spacer rods fixed to the hoops and surrounds these rods and the reinforcement bars. The holders may be constituted as malleable metal elements welded on the hoops and forming passages through which the reinforcement bars pass. Once these reinforcement bars are fitted through the passages these elements may be deformed into tight clenching contact with the bars.

Abstract: A system for attaching furring to a column includes a corner clip (20) with a first portion (30) having a pair of notches (36, 38) therein and a second portion (40, 42) at an angle to the first portion. A band (22) encircles the column and bands the second portion of the clips to the column at spaced distances along the column. A corner angle (60) has inturned tips (62, 64) which are engaged into the notches of at least two of the clips spaced along the column. Furring is then attached to the corner angles to cover the column.

Abstract: A second story addition is provided on a pre-existing residence by severing straps connecting trusses of a first portion of the original roof of the structure covering a first section of the residence on which the second story room is to be added. The first roof section also is severed from the remaining portion of the roof. Roof lifting brackets are temporarily installed under the truss chords to support all of the trusses and are engaged by eyelet bolts which extend through the top of the first roof section. Cables support by a large crane are attached to the eyelet bolts, and the crane lifts the first roof section, including a ceiling attached to the bottom of its trusses, from the first section of the residence and sets the first roof section on the ground. Cables supported by the crane then engage eyelet bolts attached to a pre-constructed floor section. The crane lifts the floor section, aligns it with the first section of the residence, and sets it thereon.

Abstract: An apparatus and method for covering the ridge or peak of a metal roof system is disclosed. After the metal roofing panels are set in place on the sloping surfaces of the roof and seamed together, mating halves of a ridge panel are positioned along the ridge and parallel thereto. The mating halves have cut-outs corresponding to the rib seams of the roofing panels, the cut-outs each being covered by a seam cap. After the ridge panel halves are secured to the roofing panels, the interlocking joint between them is folded over and permanently seamed together. Finally, the areas at the ends of the ridge adjacent the rakes of the building are covered by filler panels. The filler panels have cut-outs corresponding to the rib seam of the ridge panel, and the cut-outs are similarly covered by seam caps.

Abstract: Prefabricated concrete component to be employed in the construction of walls poured in the ground. It has a sheet (2) of impermeable material that at least partly covers the excavation side (6) of the wall, which is to be left uncovered after the wall has been poured, that has at least one face that forms the excavation-side face of the panel while the other side has projections (3) cast into the concrete (1) that makes up the panel, and that can be attached impermeably to the sheet on an adjacent panel.

Abstract: Provided is a process for preparing an aseptic container for separately storing a sterilized powdered component and a sterilized liquid component under clean conditions. The container includes two sealed chambers having a frangible, sterilized connection therebetween, one said chamber containing the liquid component, and the other said chamber including a sealed vial containing a powdered component. The vial has an outer surface that is aseptic throughout its entire surface area, and the frangible connection provides a sterile pathway, when desired, between the interior of the vial and the interior of the liquid-containing chamber.

Abstract: A method for splicing the trailing end portion of an advancing web of packing material to the leading end portion of an initially stationary second web of the same packing material such that after splicing marks provided on each of the webs in an equally spaced relation continue as an uninterrupted regular row, in particular in a packing machine. The articles to be packed are advanced spaced apart as a continuous flow into a web of packing material folded to a tube and are carried and advanced along sealing stations by the advancing tube for producing a longitudinal sealing seam and transverse sealing seams in the packing material between the articles. The transverse seams are cut thereafter and the discrete packed articles are discharged on a coveyor, in which the first web runs over a roller and the leading end portion provided with an adhesive of the second web is placed over a second roller opposite to the first roller.

Abstract: A hydraulically driven drive reversing mechanism, attachable to a combine to reverse the drive to the header and feeder house components, is disclosed wherein the reversing mechanism is contained within a gearbox detachably connected with the header drive shaft. The reversing mechanism is substantially self-contained within the gearbox and connectable to a source of hydraulic power to provide an optional drive reversing capability for substantially any combine. The reversing mechanism includes a first gear splined onto the header drive shaft for rotation therewith, a second free wheeling gear mounted within the gearbox in an intermeshing relationship with the first gear for rotation therewith and a clutch selectively engageable with the second gear to transfer rotational power from a hydraulic motor to affect a rotation of the header drive shaft in a reverse direction.

Abstract: An improved rotor comb construction (and method of assembly) for a power lawn rake has a plurality of spring tines axially stacked along a tubular rotor shaft. Each of the tines has a retention coil portion and a working coil portion spaced therefrom. The retention coil portion frictionally engages the outer surface of the rotor shaft. The working coil portion has a radially-extending ground-engaging element. A radially-inturned end of the retention coil portion is received in a respective radial hole in the shaft, thereby keying the tines to the shaft for conjoint rotation. Each hole in the rotor shaft is displaced circumferentially from its adjacent hole, preferably by an angle .theta. which equals 360 degrees divided by the number of holes. With this construction, the holes and hence the spring tines are arranged in a substantially uniform helical formation about the axis of the rotor shaft.

Abstract: Described is a bobbin lead roving machine in which target r.p.m. values for the bobbin are found in advance for each of arbitrarily selected numbers of the layers of the roving taken up on the bobbin and are stored in a micro-compouter, there r.p.m. values are compared to actual r.p.m. values for respective ones of said arbitrarily numbers of the layers, and compensation is made automatically for any offsets resulting from such comparison for causing the r.p.m. of the bobbin to be within a control limit, in a manner that the take-up tension placed on the roving is kept constant during spinning since the beginning until the end of winding on the bobbin for producing the roving of uniform weight (with a constant weight/unit length).

Abstract: A method and an apparatus for automatically controlling the winding tension of the roving in a bobbin lead roving machine is disclosed. The mean bobbin winding diameter D.sub.B, bobbin r.p.m. N.sub.B and the flyer r.p.m. N.sub.F are measured automatically for one or more operating spindles, and a mathematical equation (N.sub.B /N.sub.F -1).times.D.sub.B =K representative of winding conditions for the roving is solved by automatic operation based upon the above measured values. When the value K thus obtained exceeds a preset control limit, the bobbin r.p.m. is decreased or increased automatically for correcting the value K towards its central setting for automatically correcting the winding tension of the roving.

Abstract: Method to produce spun-like yarn and product produced thereby by combining a core yarn and an effect yarn in an air jet. The removal speed of the combined yarn from the air jet is intermediate of the speeds of the draw rolls to produce a composite yarn having crunodal loops in one of the combined yarns.

Abstract: This invention relates to melt extruded latent contractable elastic filaments which are formed by melt extruding certain segmented crosslinked thermoplastic polymers to form filaments, which filaments, when heat processed at elevated temperatures, significantly contract to yield an elastic filament. This invention also relates to the formation of composite covered yarn comprising said latent contractable melt extruded filaments. In addition, this invention relates to processes for forming articles from said latent contractable filaments or covered yarns comprising said contractable filaments and subsequently contracting said yarns to form an elastic article.

Abstract: For fixing the reversal points of the twist direction in SZ twisted elements of electric cables and lines to be twisted, a device is provided which runs along in sections with the continuously moved material to be twisted and includes clamping tongs for gripping the twisted assembly and an associated device for joining the elements to be twisted together. The clamping tongs and the joining device are arranged between the stationary twisting tool and the following stationary torsion stopper. The device for joining the elements to be twisted together preferably comprises rotatable clamping tongs which may be arranged between two non-rotating clamping tongs.

Abstract: A method of open-end spinning a yarn formed of two different types of fibers of staple fiber and a yarn formed thereby in which most of the outer fibers are formed of one type of fiber and most of the inner fibers are formed of the other component. The types of fibers are integrally linked by orienting and distributing the fibers as they approach the open end such that they lie substantially parallel to the open end and overlapping whereby part of some of the fibers of the inner type of fiber wrap around some of the fibers of the outer type of fiber.

Abstract: An energy absorbing chain which can be used as a "one shot" safety chain to absorb sudden impacts or short term tensional forces is disclosed. According to the invention, the safety chain is made of a metal having high ductility such that the chain will tend to deform, stretch, and/or deflect rather than break. According to a preferred embodiment, the chain may include links such as links (36), (38), (40) and (42) each of which includes a twist of 90.degree. to increase the amount of available deformation. In the preferred embodiment, link (36) and (40) include a twist in a first direction such as a clockwise direction whereas links (38) and (42) which alternate with links (36) and (40) include a 90.degree. twist in the opposite or counterclockwise direction. Thus upon receiving or being subjected to such tensional forces, the links can deform as shown by links (58), (60) and (62) as they absorb energy for a short period of time.

Abstract: The maximum speed of a turbofan engine varies in accordance with moderately complex relationships involving the temperature, the pressure or altitude, and whether or not the subordinate systems such as the anti-ice systems are operative. The maximum allowable rotational speed for the fan section of a turbofan engine increases with increased altitude or reduced pressure, and normally increases as the ambient temperature increases up to speeds limited by the centrifugal and other forces acting on the turbine blades. However, there is a maximum fan rotational speed above which the engine should not be operated, and there is a limit which decreases with increasing temperature above which the fan should not be operated regardless of the pressure. In addition, when the anti-ice or other subordinate systems are operative, these limits are reduced substantially.

Abstract: The thrust nozzle opening angle of two cycle gas turbine jet engines is controlled in a system which comprises a low pressure compressor driven by a low pressure turbine. A first compressor is arranged radially inward for a first flow cycle or circuit and a second compressor is arranged radially outward for a second flow cycle or circuit. A high pressure compressor is driven by a high pressure turbine. A combustion chamber is situated upstream of the high pressure turbine. An afterburner is supplied with the turbine gases from the first, hot flow cycle and with compressed air from the second, relatively cool flow cycle or circuit. The system may have multiple shafts. The control is effected with reference to the instantaneous pressure relationship (.pi.NVZ) between the static pressure (p.sub.sD) downstream of the radially outer compressor (1a) of the second flow cycle (k2) and the static pressure (p.sub.sE) of the air flowing into the propulsion system. This ratio constitutes a variable rated control value (.

Abstract: A diesel engine is provided with an air throttle valve fitted in its intake system, which when operated to provide throttling action decreases the air flow in the intake system of the engine and increases the temperature of the exhaust gases of the engine, in order to heat up a soot particle catcher fitted to the exhaust system which thus is purged by combusting the accumulation of soot particles in it. When the air throttle valve is thus throttling the intake system and thus raising the temperature of the exhaust gases so as to purge the soot particle catcher, the amount of throttling provided by the air throttle valve is controlled, by comparing the pressure in the intake system downstream of the air throttle valve with a certain reference pressure, so as to keep this pressure in the intake system downstream of the air throttle valve substantially the same as this reference pressure.

Abstract: A split engine control system operates a multiple cylinder internal combustion engine by using only some of the plurality of cylinders under light load conditions. The total number of cylinders are split into a first cylinder group which is always activated during engine operation and a second cylinder group which is deactivated under light load conditions. The engine is provided with an exhaust passage which consists of first and second upstream exhaust passages connected to the first and second cylinder group, respectively, and a common downstream exhaust passage. An exhaust gas sensor and a first catalytic converter are disposed in the first upstream exhaust passage, and a second catalytic converter is disposed in the common downstream exhaust passage. A temperature sensor is provided in the second catalytic converter.

Abstract: A torque transfer apparatus includes one or more externally powered energy pumps having a plurality of piston and follower arrangements. The pistons are attached to crankshafts, while the associated followers are controlled by a timing chain driven camshaft. The energy pumps are provided with belt drives to power one or more oil pumps, and the oil pumps provide pressurized oil between the followers and pistons so as to improve power transfer efficiency. Additionally, return lines are provided which permit the pressurized oil to be returned to the oil pump during a return stroke of the associated pistons.

Abstract: A hydrostatic drive system for an excavator is provided having a primary energy source on the excavator, at least one pump installed in a housing for supplying several consumers, a connection between each pump and consumer effected through at least one control block and at least one connection from a consumer through a rotary transmission to the pump and wherein at least some of the pumps, distributors, control blocks and rotary transmission are joined into a common block.

Abstract: A two-stage, hydro-pneumatic actuator suitable for use as a railway vehicle brake. The hydraulic cylinder comprises a large diameter bore in which a low- and a high-pressure piston operate jointly during a first stage of operation to effect a high volumetric displacement of hydraulic fluid via a small diameter bore in order to take up the clearance between the brake shoes and wheel. As the brake shoes contact the wheel, the high-pressure piston enters the small bore to interrupt further displacement of hydraulic fluid from the large bore. The force of the high-pressure piston alone during this second stage of operation produces the required brake forces with a high multiplication factor. Make-up fluid is drawn into a chamber on the backside of the low-pressure piston during a brake application stroke an amount corresponding to the over-travel of the high-pressure piston and is subsequently discharged into the hydraulic cylinder during retraction of the brakes to compensate for brake shoe wear.

Abstract: In this supercharging device for internal combustion engines, comprising a turbine driven by the engine exhaust gases, an air compressor driven by the turbine and connected to the engine intake manifold, and a so-called exhaust-gas waste-gate responsive to a valve control valve responsive in turn to the compressor output pressure, this control valve being also responsive to a pilot valve responsive to the detection of the engine intake governing the valve control when opening the waste-gate at low engine speeds and part-load engine operating conditions, and when closing the waste-gate at higher engine speeds, the portion of the valve control which is responsive to the compressor output pressure being connected to a venting member actuated gradually from a position of maximum opening of the intake control butterfly valve obtained during the stroke controlling the maximum engine power output, whereby in the portion of this stroke which follows the position corresponding to the fully-open position of the butterf

Abstract: A system for controlling the inlet pressure in a combustion engine includes a microprocessor wherein a command value for the pressure as a function of engine speed is stored and which controls a solenoid valve controlling the pressure in a pneumatic operating mechanism to a waste gate in a shunt pipe past the turbine.

Abstract: An internal combustion engine equipped with a supercharger including a bypass passage avoiding a turbine and disposed in parallel to an exhaust pipe, and a bypass valve mounted in the bypass passage for controlling the flow rate of exhaust gas flowing through the exhaust pipe. A control method for the internal combustion engine equipped with a supercharger wherein an air intake is compressed by a compressor coaxially connected to the turbine driven by exhaust gas flowing in the exhaust pipe to supply a supercharger pressure to the engine; the temperature of exhaust gas flowing into a casing of the turbine is sensed by a temperature sensor; and the pressure of the air intake supplied to the engine as the supercharger pressure is controlled when the temperature sensor produces a signal, to thereby keep the temperature of the exhaust gas at a level below a predetermined value.

Abstract: Halides of tungsten and molybdenum are described for use as working fluids in power plants. Specifically, tungsten pentachloride, tungsten hexachloride, molybdenum hexafluoride and molybdenum hexachloride are used as working fluids in power plants. These working fluids can be used alone in a single cycle. However, they are preferably used in one or two loops of a binary system. The working fluids can be used in combination with other known working fluids in a binary system. Specifically useful, working fluids would include water-Hg, aluminum iodide, water, and nitrogen tetroxide. The use of the novel boiler fluids of the present invention provide numerous advantages, particularly, improved efficiency.

Abstract: A gas turbine engine is provided with an improved fuel system that features a fuel manifold with a primary and secondary fuel flowpath circumventing a combustor section of the engine. The manifold is formed with a double-walled construction for the purpose of withstanding high temperatures or fires around the combustor section and, additionally, to provide a secondary flowpath for draining any fuel leakage from the manifold. The two walls of the manifold include an inner wall that encloses the primary fuel flowpath through the fuel system. A concentric outer wall encloses the inner wall and protects the primary fuel flowpath. The double-walled system is made possible with a unique manifold assembly utilizing double-walled manifold segments that interconnect fuel flowpaths through fuel injector base sections. When assembled, these parts connect together to form an integral double-walled fuel manifold assembly.

Abstract: Alternating current is applied to a bi-directional triode thyristor (triac) and a zero voltage switch, the zero voltage switch controls the operation of the triac to selectively heat a heater element, the thermal energy of the heater element drives a first thermoelectric heat pump (module), acting as a dc power generator, to produce power to drive a second thermoelectric heat pump acting as a cooling or heating source, towards a preselected temperature, a thermally sensitive resistor (thermistor) senses the temperature and generates a resistance corresponding to the temperature, the thermistor is connected to the zero voltage switch in series with a temperature set point resistor (potentiometer) and source of power to form a voltage divider input to the zero voltage switch, whereby when the resistance of the thermistor substantially equals that of the temperature set point resistor the zero voltage switch inhibits the trigger pulses to the triac to cut off ac current to the heater element.

Abstract: A plurality of special pallets aligned end to end in two rows on the floor of an insulated transport container form a false floor with fluid conduits therebelow. Each of the special pallets is a single piece casting of plastic material with a thin solid top, three spaced-apart runners attached below the top, end braces attached to the pallet ends, and a horizontal reinforcing web supporting the top. Voids extending between the runners are aligned to form four fluid conduits from the front of the container to its rear. A pan or false ceiling is suspended from the container ceiling to form a sprinkler plenum between the pan and the ceiling. Chilled water is pumped into the sprinkler plenum, and sprinkled through regularly spaced holes in the pan onto vegetation stacked on the false floor. Water sprinkled onto the vegetation drains through slits in the pallet tops into the fluid conduits and flows therethrough to a drain at the rear of the container.

Abstract: Apparatus for and a method of automatically adjusting the superheat setting of a thermostatic expansion valve of a refrigeration system is disclosed in which the superheat of the refrigeration system is maintained at a low superheat level so as to maximize the operating efficiency of the refrigeration system, and yet which prevents the return of excessive amounts of liquid refrigerant to the compressor which would be likely to cause damage to the compressor.

Abstract: A method and apparatus for removing oil particles and condensate from a stream of compressed air used in the production of snow by snow-making equipment wherein the condensate is first crystallized thus allowing the oil particles to adhere thereto and thereafter the crystallized condensate and oil particles are heated in a holding zone to form a liquid which is separated from the stream of compressed air and drained therefrom.

Abstract: A control system is disclosed for turning a diesel engine on and off to power a refrigeration plant, based on temperature requirements. The desired temperature limits are preset, and when these limits are exceeded, a first timer is set for a desired delay, during which the engine is off; delay times of up to one hour are usual. At the end of this delay time, the first timer will activate glow plugs in the engine. Simultaneously with turning on the glow plugs, a second timer actuates the engine starter after a short delay to start the engine. During the delay period set by the first timer, the diesel engine will be off, and hence, the control system saves diesel fuel and reduces engine maintenance. An electronic circuit for operating the timing system is also disclosed.

Abstract: The disclosed temperature control system for an air conditioner includes a sensor for sensing an actual air temperature and a comparator for determining the temperature difference between the sensed actual air temperature and a set air temperature after their conversion to digital voltages. The temperature difference is stored in a memory and is also applied to a calculator where a rate of change in temperature per unit time is calculated from the temperature difference thus formed and from that temperature which had occurred just before a predetermined time stored in the memory. A control unit responds to both the temperature difference and the rate of change in temperature per unit time to increase or decrease the number of compressors put into operation with respect to the number of the compressors operated at the just preceeding interval of time.

Abstract: A control circuit for cycling the evaporator fans on and off independently of the operation of the compressor of the refrigeration system is described. The evaporator fan is cycled on with the compressor and continues to run during the entire compressor ON cycle. A first timer causes the evaporator fan to run for an additional delay period following the cycling OFF of the compressor and the fans continue to blow air over the evaporator coil until the temperature of the evaporator coil is sufficiently above the freezing point of water (32.degree. F., 0.degree. C.). The fans are then cycled OFF. A second cycling timer is provided to intermittently cycle the evaporator fans on and off for predetermined short intervals following the above-described delay period, and during the time when the compressor is OFF. A third timer is provided to preclude freezing of the vended products and/or the evaporator coil when a vending machine is disposed in a below-freezing environment.

Abstract: An improved refrigerator of the forced refrigerated air type is disclosed in which a divider shelf is provided for the convenience of the user who wishes to convert a portion of the freezer section into a standard refrigeration section or a portion of the standard refrigerator section into a freezer section. The shelf is formed of an insulating material and is dimensioned and shaped to be positioned in a selected compartment in any of a plurality of selectable locations. The shelf has a resilient sealing member along peripheral portions which engage the corresponding walls of the compartment in which it is positioned so as to permit the shelf to selectively alter the flow of refrigerated air in such a manner as to permit the separate thermostatic temperature control of the separate sections created by the shelf.

Abstract: A method for creating an ice-skating rink comprising an excavation in the ground lined with polyethylene and filled with salt water; a pump and sprayer used in the winter to build up a layer of salt ice on top of the salt water and to eventually fill the excavation with frozen salt water in this manner, with the pump drawing salt water from beneath the salt ice as the freezing process progresses; covering the salt ice with a layer of straw or layers of air supported reinforced plastic during the warm weather months; circulating air or water over the salt ice and then through channels cut into the ice of the ice rink; laying aluminum foil on the skating surface and freezing more ice over it; and providing an enclosed air supported bubble over the ice with a secondary air supported inner ceiling having an upper facing aluminum surface thereon to reflect infrared radiation coming from the main outer bubble.

Abstract: A cylinder is provided with a piston therein having a piston rod screw threadably engaging through one end cap so that rotation of the rod moves the piston along the cylinder. A filler is situated in the other end cap thus allowing the cylinder to be filled with refrigerant oil. An injection assembly is connected to the other end cap and includes a valve, a tube and a connector which may be connected to the high or low side of the refrigerant circuit of a refrigeration assembly such as an air conditioner. Once connected to the refrigerant circuit, a loosening of one union allows the refrigerant within the circuit to purge the line whereupon the union is tightened. The piston rod is marked with indicia along the length thereof so that rotation of the rod a predetermined distance indicates to the operator that a given amount of oil has been ejected from the cylinder and into the refrigerant system.

Abstract: A fluid/vacuum chamber (FVC) is disclosed comprising a rigid porous membrane element wherein a vacuum is applied to one side of the porous element and a fluid is passed along the other side of the porous element to remove the heat of vaporization via the pressure differential. This chamber is useful as to reduce energy consumption in a desalination unit, a heat pump, an ice-making system and refrigeration systems. The porous material may be constructed of sintered brass, sintered stainless steel, polymeric plastic, a paper filter element, etc. in order to provide porous openings, of about 5 to about 100 microns. Also disclosed is the use of a fluid/vacuum chamber (FVC) in a heating cycle or cooling cycle. A compressor or vacuum pump normally provides the vacuum suction for the fluid/vacuum chamber (FVC).

Abstract: An auger-type icemaker for producing hard chip ice of high quality comprises a refrigerated cylinder for forming ice grown on an inner wall surface thereof, a scraper auger rotatably mounted in the refrigerated cylinder for scraping off the ice on the inner wall surface of the refrigerated cylinder, and upper and lower bearing by which said scraper auger is rotatably supported in the refrigerated cylinder. The upper bearing has standard peripheral surfaces and a plurality of axial ribs projecting radially outwardly from the standard peripheral surfaces into abutment against the inner wall surface of the refrigerated cylinder. The standard surfaces include slant surfaces extending upwardly and radially outwardly progressively toward the inner wall surface of the refrigerated cylinder, and parallel surfaces extending upwardly contiguously from the slant surface and substantially parallel to the inner wall surface of the refrigerated cylinder.