Abstract: An openable roof includes a plurality of rotationally movable roof members and at least one linearly movable roof member. Each of the rotationally movable roof members is of a generally sectorial shape in a two-dimensional projection. The sectorial shape has a radially outer edge portion. The outer edge portions of the rotationally movable roof members are movably disposed on an outer arcuate support. Accordingly, each of the rotationally movable roof members is able to revolve around an axis of the arcuate support so as to participate to open and close a sectorial opening portion provided by the arcuate support. The linearly movable roof member has a generally V-shaped edge portion. The V-shaped edge portion cooperates with the arcuate support to define the sectorial opening. The linearly movable roof member is movably disposed on a plurality of linear supports so as to participate to open and close a larger opening portion which is larger than the sectorial opening.

Abstract: The vertical reflective enclosure, containing a double-pane bay window panels, with movable inserts between the panes, which function as shading devices, and a light reflective panels directly extending above the bay window panels at top portion, intended to channel the sunlight and an outside view from the translucent roof membrane to the exterior wall installed transparent mirror window. This enclosure, in the form of a bay shaft configuration adapted for positioning around such window, is attached at the upper end around the translucent roof membrane and at the bottom and terminated below the wall window.

Abstract: A structural glass unit comprises a multi-ply glass assembly, for example a glass laminate or a sealed double glazing unit, which may be part of a roof structure. The glass assembly has a stepped configuration at a location where the assembly is secured to a supporting member by a clamp which is clamped to one glass sheet only of the glass assembly.

Abstract: A method of injecting a hardenable mass into cracks in a structure includes drilling a borehole into the structure traversing the cracks. Inserting a tubular member into the borehole with the tubular member having an outside diameter smaller than the diameter of the borehole. Filling the gap between the borehole surface and the tubular member with a hardenable mass forming a seal of the gap at the opening into the borehole. After the seal has hardened, injecting a hardenable mass into the tubular member so that it flows into the borehole and enters into the cracks in the structure.

Abstract: A static seal strip has a base and a bulb. The base is adapted to be secured to the object to be sealed. The bulb includes an encapsulated sealant and is adapted to release the sealant upon exertion of a force onto the bulb to enable the sealant to seal the object.

Abstract: A van wall brace for reinforcing a truncated pillar of a van wall which has been cut in order to accommodate a retrofitted window. The van wall brace connects to the severed end of truncated pillar and is tied into adjacent intact pillars so as to lend structural integrity to the truncated pillar, thereby restoring strength to the van wall. The van wall brace is preferred to be formed of a single piece of heavy gauge sheet metal stock of elongate shape. Each end of the sheet metal stock is stamped with a predetermined reciprocal pillar contour or contours for engaging the intact pillars located on either side of the truncated pillar or pillars. The sheet steel stock is further stamped between the ends thereof so as to provide another predetermined reciprocal pillar contour or contours for engaging each truncated pillar or pillars.

Abstract: Disclosed herein is a plastic frame for leading lines through an opening in a structural part, such as a wall. The frame has a cavity defined by two C-shaped elements having inner flanges which are perpendicular to the plane of the frame, and outer flanges which are parallel to the plane of the frame. The leg portions of one of the C-shaped elements extend toward the leg portions of the other. A double T-shaped element can be situated between the C-shaped elements in order to form two cavities. The frame is useful for obtaining a water-tight and/or gas-tight seal when wires, tubes, etc. are led through a wall.

Abstract: A new concept wall system is provided, wherein a moisture and vapor barrier is positioned in an enterior insulation finish system to provide thermal stability regardless of climatic variations. Specifically, a two part membrane of multiple cross-laminated layers of polyethylene film fully bonded to a layer of rubberized asphalt is placed between the substrate and insulation layers of the exterior insulation finish system.

Abstract: An attachment system, method and connector connection for constructing a structure having supporting members and supported members as most commonly found in house and patio wood decks, board walks, stair systems, wood benches and trellis systems. The structures using the present disclosures are characterized by the apparent absence of nails or other fasteners. In fact, however, the structures are securely fastened by nails or screw fasteners in combination with a unique connector which uniquely is not directly connected to the supporting members.In some forms of the invention, locator prongs are provided on the connector for assisting the installer to attach the connector to the supporting board member. In its broadest form, however, no prongs are needed on the connector.In a preferred form of the connector, a projection is formed in the connector which bears against the underside of an adjacent structure even though the connector is not precisely installed.

Abstract: A thermally insulating panel structure (2, 60) is created by filing the space (16, 67) between two panels (4, 6, 61, 62) with a gas exhibiting low thermal conductivity at a moderately low pressure so to substantially eliminate convection heat flow through the insulating region but not so low as to substantially reduce conduction heat flow through the insulating region. Doing so greatly increases the thermal insulating qualities of the structure without the problems associated with evacuating the region to extremely low pressures. The seal (14, 50, 66) at the edges (10, 12, 64, 65) of the panels can define one or more barrier regions (44, 46) which reduce air leakage into the insulating region.

Abstract: This invention provides a method for repair for poles which have been damaged by environmental effects, which is easily transportable, simple to install, and easily adaptable to many classes of poles. The method involves excavating around the pole, cleaning the surface of the pole, pumping a fumigant into the pole, applying a bonding agent to the clean surface, and then applying strips of a composite fiberglass mat and resin to the pole in a controlled manner until a desired casement thickness has been achieved. The repair is completed by application of an ultraviolet resistant coating to the pole.

Abstract: An arrangement for sealing an opening in a roof deck by mounting a baffle plate in the roof deck so as to provide a throughgoing ducting channel, the roof deck having at least one raised seam joint intersecting the opening, the baffle plate being dimensioned such that it extends beyond the periphery of the opening in substantially all directions thereby defining a zone of overlap which extends around substantially the entire periphery of the opening, the arrangement including a capping member for capping and sealing the area where the baffle plate, the raised seam joint and the opening converge, a backing and stiffening member for being positioned on the opposite surface of the roof deck from the baffle plate and at least partially within the zone of overlap, and a fastening device for extending through and securing together the capping member, the baffle plate, the roof deck and the backing and stiffening member within the zone of overlap.

Abstract: For use with automatic machinery for packaging a food product in foil pouches and then inserting a desired number of pouches in a box, a method and apparatus for scanning the boxes to check for missing pouches. The scan is accomplished by applying like alternating magnetic fields through each box and through the foil used to make the pouches at a point upstream from where the pouches are formed. Detected field absorption associated with the upstream foil is used as a reference, and the difference between it and detected field absorption associated with a box is proportional to the number of pouches in the box. The apparatus can detect if one out of two, one out of three, or one out of four is missing, and compensates the differential signal for variations in foil thickness by multiplying the reference signal by N-1, where N is desired pouch count per box. If a pouch is missing from a box, a signal is generated which can be used to trigger a rejection mechanism to remove the short-count box.

Abstract: A packaging machine for the packaging of materials to be disposed comprises a container for receiving an open bag as well as evacuation means and a lid which can be opened and hermetically seals the container from the exterior. In order to avoid a contamination of the lid at the inner side thereof, the bag has a collar and a seam connected thereto. The latter is hooked in supporting bolts of the lid.

Abstract: A wrapping apparatus for wrapping a product in a plastic film includes a conveyor system for moving the product, a wrapping assembly for spirally wrapping a continuous sheet of the film about the product and the conveyor system, and a cutting assembly for forming in the wrapped film a series of perforations defining a line of tearing weakness. The conveyor system includes a pair of spaced apart conveyors which cooperatively move a product through the wrapping assembly. The cutting assembly includes a cutting element which selectively engages the film at a location between the spaced apart conveyors to form the series of perforations.

Abstract: A support pad is disclosed for supporting a can body member on a chuck mechanism during a seaming operation. The support pad includes an annular insert made of a ceramic material such as a whisker reinforced alumina material. The annular insert supports the rim of a can body member during the seaming operation. A vent passage is provided extending from a central portion of the upper surface of the support pad to a peripheral side surface for venting the space between the bottom wall of the can member and the base plate.

Abstract: A method of and apparatus for wrapping a strip of stretchable plastic cling film around work to be enwrapped (banded) wherein the leading end of the film is gripped at opposite sides by grippers, the grippers are disengaged from the strip and moved outwardly clear of the strip after one wrap has been completed and the strip has lapped itself for gripping itself to the work, and wherein the last wrap is held spaced away from the underlying portion of the strip for regripping of the strip, which is then cut to provide a finishing end and a new leading end of strip, the finishing end being secured to the underlying portion of the strip by being pressed against it for clinging thereto.

Abstract: A compact, low shipping volume paper product comprising a compression loaded, core-wound roll of paper and a compression constraining element; and concomitant method of making such a paper product. The roll comprises a length of paper which is wound on a tubular core, and which roll may have an obround or parallelopipedal shape due to being unidirectionally compressively loaded after winding; and then constrained against expanding by a suitable constraining element. Preferably, the roll is sufficiently compressively loaded to completely flatten the core. In another aspect of the invention, the roll may be further compressed by applying a compressive loading that is substantially greater than that needed to cause the core to become flat; and, some of that high compressive loading may be relieved before the constraining element is applied or secured.

Abstract: The invention is a method of forming large-volume foam cushions for packaging purposes wherein each cushion comprises a closed bag formed from respective first and second superposed sheets of plastic material and filled with foam.

Abstract: A method and a mechanism for making plastic film bags having a reclosable zipper including wrapping a continuous supply of film over a forming tube to form a seam joining the edges of the film and cross-seaming the film, supporting the supply roll of film with the film doubled and a zipper at the doubled edge; guiding the location of the zipper in the film so that the film is properly positioned as it is fed forwardly to be wrapped over the forming tube and means unfolding the film as it is fed forwardly to open the doubled film to be fed to the forming tube as a flat sheet.

Abstract: In a packaging system, carton sleeves are sealingly closed at their bottoms while received upon respective mandrels, the open-topped cartons are removed from the mandrels and filled, and the filled cartons are sealingly closed at their tops. Between the bottoms being sealingly closed and the cartons being filled, selected cartons are turned through a right-angle about their own axes to bring their top closure sealing sub-panels into a correct orientation for top-sealing. For enabling such turning the mandrels are turnable about their own axes by a cam displaceable between operative and inoperative positions.

Abstract: A side loading machine is capable of very rapid loading of complements of articles into open side cartons. Carton blanks are unfolded at an unfolding station and advanced to a loading station along a carton path. At the loading station, pusher bars are indexed in closed paths located perpendicular to and on both sides of the carton path. The pusher bars are indexed to push the complements from article waiting stations into the carton. New articles are fed to the article waiting stations between consecutive pusher bars. A split platform cooperates with a pusher bar to guide the articles into each article waiting station. Oscillating fingers and paddles positively control the locations of the carton flaps prior and subsequent to loading the complements into the cartons.

Abstract: Apparatus for processing sheets, comprising: structure for feeding sheets in a downstream path of travel; at least two structure for supporting sheets located adjacent to said path of travel; each of said supporting structure having stacked therein a plurality of sheets; at least one of said sheet supporting means including electronic structure for storing data relating to each sheet therein; and structure for controlling operation of the apparatus; and said controlling structure including structure for causing said data to be stored therein.

Abstract: An inert gas substitution method comprising blowing an inert gas into a container in the state wherein an opening of a container is covered with an inert gas substitution apparatus (5, 20) having an inert gas blow opening (7, 30), thereby substituting the inert gas within the container, and after substitution, covering the opening of the container with a cover material film (15). An inert gas substitution apparatus (5) formed with an inert gas blow opening (7) and having a plate of which bottom surface is flat. An inert gas substitution apparatus (20) having a chamber (21) of which bottom surface is open, the chamber (21) covering an opening of a container to blow an inert gas into the container.

Abstract: An improved foam receiving envelope pad for use beneath a horse saddle. In one embodiment the envelope pad is interposed between a standard horse pad and the saddle; while in the second embodiment, the envelope pad is integrated into the standard horse pad. In both instances, the construction features the inclusion of an upper surface rearwardly narrowing top gusset followed by an integrated elongated flat panel, the pair of which separate each of two side envelopes from each other. Each envelope in use is downwardly disposed and is adapted to removably receive a special shock absorbing foam insert. The overall configuration of the envelope pad is correlated with the configuration of the saddle for which its use is intended.

Abstract: An attachment for cleaning the underside of rotary lawn mowers which is a horizontal tubular device having a mower connecting member and quick connect receiver extension. The attachment is connected through the side casing of the mower and is releasably attachable to a quick disconnect fitting which can be connected to a conventional garden hose.

Abstract: Disclosed is a mowing apparatus, which includes a motive power source, first and second cutting wheels slidably superposed with each other and provided with a number of grass cutting edges, and mechanism for reciprocatively rotating each cutting wheel in opposite directions through a predetermined angle. The rotating mechanism includes a first shaft coupled to the first wheel, a cylindrical-shaped second shaft into which the first shaft is rotatably and coaxially inserted and coupled to the second wheel, and converting mechanism provided between the power source and the first and second shafts for converting the rotational motion from the power source into two oppositely and reciprocatively rotational motions of the first and second shaft within the predetermined angle.

Abstract: A roller-type mower with a rotatable drum or roller is provided with cutting members on its surface which rotate at a speed required for free cutting. The mower is distinguished by the fact that a plurality of separate cutting members are provided on its surface. Each is obliquely pitched relative to the axis of rotation, or is helically designed, and the mutually spaced cutting members overlap each other in the direction of travel.

Abstract: An apparatus for harvesting produce from row crops, a pair of beater rods for use in said apparatus, and methods related to the apparatus, wherein the apparatus comprises a chassis which travels along the row of crops, and a harvesting unit, which is carried by the chassis and which comprises: A means for engaging and depressing an upper side and a means for engaging and raising a lower side of various portions of the crops, with the side engaging means defining a crop receiving area therebetween and with the crop portions entering into the crop receiving area and being raised and depressed; a means operatively connected to the side engaging means for imparting first and second vertical components of oscillation to the depressing and raising of the crop portions; with the apparatus being characterized in that a central zone of the second component (said second component comprising a lower zone, said central zone, and an upper zone) is oscillated up and down about a fixed horizontal axis.

Abstract: Loosened fibers are engaged by means of twisted or knitted binding yarns (FL); a feed roller (210) for the fibers of a roving or fiber top is tangent to a card (206) placed in a housing (212) opening onto a cavity (214) which is essentially tangential to said housing (212), in order to deliver the loosened fibers of the roving in the form of light batting to the binding means.

Abstract: A cable handling chain link including an open sided cable compartment defined between an upper wall, a lower wall and a partition extending between the upper and lower walls, the partition being located in board from the side edges of the upper and lower walls which side edges define the open side of the compartment, and a cable retention device releasably connectable to the chain link, the cable retention device being a unitary member of generally elongate form having an abutment face which abuts against the inside face of one of said walls, and having a resilient tongue formation which co-operates with said inside face and a reaction member formed on the chain link to resiliently urge said abutment face into contact with said inside face, a detent member on said abutment face and/or said tongue for co-operation with the chain link to restrain longitudinal withdrawal of the retention device and a lateral projection extending laterally away from said abutment face toward the opposite wall, said lateral projec

Abstract: A high performance propulsion thruster especially for the attitude and orbit control of space craft or flying bodies in space, is equipped with a heating-up device for the propulsion gas flowing to a nozzle. The heating device is constructed with at least two electrical resistance heating elements for increasing the reliability and the specific impulses. The heat generated by the at least two electrical resistance heating elements is applied to a gas guide conduit which is integrated with the heating device. The gas guide conduit is made of a high temperature resistant metal or of a ceramic material. The heating device, or rather its units are constructed as modular units, preferably integrated with modular gas guide conduits. Thus, a plurality of such modular units can be combined to easily satisfy the requirements regarding dimension of such units and regarding the specific impulse of such units.

Abstract: An arrangement for the supply of propellant for the propulsion systems of a satellite has a main fuel tank, a main oxidizer tank and an additional or auxiliary oxidizer tank. The auxiliary oxidizer tank becomes effective when the oxidizer in the main tank has been used up at the end of the useful life of the satellite. At that time the additional oxidizer is used to bring the satellite into a retirement orbit out of the way, so to speak, to reduce the crowding in the range of desirable orbits. For this purpose, the emptiness of the main oxidizer tank is sensed by a sensor for providing a control signal which closes the main supply line, thereby switching on the auxiliary tank for propelling the satellite into the retirement orbit.

Abstract: The assembly is composed of a vacuum pneumatic booster (1), a master cylinder (3) and a reservoir (5) of fluid under low pressure which feeds the master cylinder, and is intended to convert a force exerted on a control pedal into a fluid pressure supplying at least one fluid motor. The booster (1) has at least one chamber connected to a vacuum source via a non-return valve (30). This chamber is connected to the source via a duct (21) formed in the master cylinder (3), the non-return valve (30) being arranged at the outlet of the duct (21). The non-return valve (30) is arranged at the end of a pipe (25), the other end of which is connected in a sealed manner to the duct (21), the non-return valve (30) and the pipe (25) being incorporated into the reservoir (5).

Abstract: A hydraulic braking system includes a tandem master cylinder having a bore with an opening and a closed wall at opposite ends thereof which formed in a housing, a first piston slidably fitted in the bore so as to define a first pressure chamber and a first fluid chamber therein and operatively connected to a brake pedal, a second piston slidably fitted in the bore so as to define a second fluid chamber adjacent to the first pressure chamber and a second pressure chamber and operatively connected to the first piston. A normally open valve communicates with each piston so as to close passages formed in the each pistons and communication between each fluid chambers and each pressure chambers, respectively, when each piston is moved in response to the depression of the brake pedal. A power source generates a hydraulic power pressure.

Abstract: The invention relates to a braking device for a motor vehicle having a bulkhead (1) separating the passenger compartment (5) from the engine compartment (3). The device comprises a master cylinder (7) having a flange (13), via which it is fastened by means of a screw/nut assembly (15) to the front wall of a pneumatic brake booster (9) controlled as a result of the action on a tappet (11) passing through the rear wall of a brake booster, and a mechanism for fastening the device to the bulkhead (1) such that the brake booster (9) is arranged on the same side as the passenger compartment (5). The master cylinder (7) is partially arranged in the passenger compartment (5) and passes through an opening made in the bulkhead (1) for this purpose.

Abstract: A binary cycle power recovery apparatus which comprises, in combination, a steam separator for separating steam from hot water, a hot water tank where hot water is produced by directly introducing the steam from the steam separator into water; a heating and evaporating means installed in the hot water tank for heating and evaporating a liquid working medium by the hot water in the tank, a turbine derived by the evaporated working medium from the heating and evaporating means, a condenser for condensing the gaseous working medium from the turbine, and a pump for circulating the condensed working medium from the condenser to the heating and evaporation means. The internal power for working the apparatus is reduced and the heat exchange efficiency is improved. As a result, the apparatus may be constructed in a small size adapted for use, for example, by a private administrator of a small hot spring hotel to recover electric power or cold heat source from waste steam which has heretofore been discarded.

Abstract: A process and apparatus by means of which the premier vapor cycle, known as the Carnot cycle, can be approximated in practice, involve the application of novel energy-efficient, mixed phase, high volume-ratio fluid-handling machinery to a single-component working fluid that exists during certain processes as a mixture of fine droplets of saturated liquid in saturated vapor. This combination of fluid-handling machinery and the saturated mixed-phase working fluid enables the approximation of isentropic saturated liquid/vapor expansion and compression. These process approximations, in addition to isothermal heat addition and rejection, enable Carnot heat engine, refrigeration and heat pump cycles to be approximated.

Abstract: Improved fuel atomization for turbine engines operating at low fuel flows and at high altitudes is accomplished in an engine having an annular combustor 26 by utilizing start fuel injectors 46 provided with discharge orifices 56 and planar impingement surfaces 60 within the path of fuel discharged from the orifices 56 to provide flat sprays 62 that are generally tangential to the annular combustor 26 so as to be intercepted by an igniter 70 in a radial wall 34 of the combustor 26.

Abstract: A hot gas overheat protection device is provided for gas turbine engines and the like. An outer metal wall having cooling air supplied through cooling holes therethrough from the outside is shielded from hot gas flow by the provision of highly temperature resistant lining wall elements spaced from the metal wall. A thin metal skin is provided between the metal wall and the wall elements defining intermediate spaces communicating with cooling air ports in the metal wall. The thin metal skin has a melting point equal to or lower than that of the metal wall so as to provide for fusion or rupture of the thin metal skin in the event the insulating wall elements are locally ruptured, whereby the cooling air is provided through the cooling air ports in a direction against the flow of hot gases to thereby mitigate the effects of the rupture and protect the metal wall.

Abstract: An apparatus for dispensing a measured amount of hydroscopic lubricant into an air conditioning system. The apparatus includes a container for the lubricant which has a key type coupling to a cylinder. The cylinder has a piston which may reciprocate therein. The piston has a bore therethrough so that the lubricant may pass from the container and through the piston, and thereafter, through a hose and into the air conditioning system. The container has a seal to protect the lubricant from moisture, the seal being interrupted when the cylinder is coupled to the container. The cylinder has driven pins extending outwardly therefrom and the cylinder also has a pair of diametrically opposed slots therein. The piston has a pair of diametrically opposed drive pins thereon arranged so that the piston drive pins communicate with the slots in the cylinders. A detachable leveraged handle having arms joined in a scissor fashion is provided.

Abstract: A rotary displacement compression heat transfer system and method for improving its efficiency includes a rotary displacement compressor for compressing a refrigerant, a condensor connected with the outlet of the compressor, an evaporator connected with the inlet of the compressor, an oil pump for injecting oil into the compressor, an oil separator for separating out the oil and recirculating it to the compressor, a non-chlorinated hydrocarbon refrigerant, and a synthetic oil ingredient in the oil providing an inverse solubility characteristic where a mixture of the refrigerant and oil has two immiscible phases in the compressor's operating temperature range and has only one dissolved liquid phase at a temperature in the evaporator's operating range at a weight concentration of oil less than about 5%.

Abstract: A method of transferring and recovering energy comprises placing in different reactors two or more different solid adsorbents having a gaseous reactant adsorbed thereon and each having a different gaseous reactant vapor pressure, in a first reaction cycle, pressurizing a first portion of the reactors at a first pressure to desorb the gaseous reactant in an endothermic reaction, and pressurizing a second portion of the reactors at a second pressure to adsorb the gaseous reactant in an exothermic reaction, and in a second reaction cycle, pressurizing the first portion of the reactors at the second pressure to adsorb the gaseous reactant in an exothermic reaction, and pressurizing the second portion of the reactors at the first pressure to desorb the gaseous reactant in an endothermic reaction, and directing at least a portion of the heat released during the exothermic reactions or at least a portion of heat absorbed during the endothermic reactions to heat exchange means for energy recovery.

Abstract: The determination as to whether an operational compressor in a multiple-screw compressor water chiller is fully loaded is made by sending a relatively long duration test pulse to the load solenoid of the compressor. If the compressor is fully loaded, no measurable change in the current drawn by the compressor motor will be measured since no slide valve movement will have occurred and no additional load will have been placed on the compressor. If, however, the compressor is not fully loaded at the time the test pulse is sent, the compressor slide valve will move to load the compressor to an extent such that a reliably measurable change in compressor motor current draw occurs.

Abstract: An engine control system of an automotive engine cooperates with an engine driven air conditioning system which is restrictively driven when the engine operates in a predetermined operating condition. The engine control system includes a pressure sensor to detect an atmospheric pressure at which the engine operates. The predetermined condition is changed according to the atmospheric pressure.

Abstract: Disclosed is an automatic ice making machine having an ice making section with an evaporator connected to a freezing system, a water feed system, an ice releasing unit, and a temperature detector which detects the temperature of the water to be frozen circulated through the water feed system; characterized in that said ice making machine further comprises a protection unit which stops the ice making operation after a predetermined time counted from the starting point of the ice releasing operation, if the temperature of the water to be frozen does not drop below a predetermined level. The automatic ice making machine may have a water level detector for detecting the level of water in a water tank instead of the temperature detector, and a protection unit which stops the ice making operation when the level of the water in the tank of the water feed system does not drop below the predetermined level within a predetermined time counted from the starting point of the ice making operation.

Abstract: Disclosed is an air conditioner for use in an automotive vehicle. The air conditioner includes a timer circuit for deciding whether or not a given period of time has elapsed after an engine of the automotive vehicle has been started, an air quantity controller for limiting the amount of air to be introduced into a passenger compartment for a given period of time after an air cooling operation has been started, a compressor controller for prohibiting the operation of a compressor of the air conditioner for the given period of time to be decided by the timer circuit, a temperature sensor for detecting the temperature of the passenger compartment, and a switch portion for starting the compressor. The timer circuit, the air quantity controller, the compressor controller, and the switch portion are all provided in an air conditioner control unit.

Abstract: A refrigerating system including a refrigerant circuit having a condenser, evaporator and wobble plate type compressor with a variable displacement mechanism. Two passages communicate between the crank chamber and the suction chamber in the cylinder block. A bellows is disposed in a first passage and controls the communication between the crank chamber and the suction chamber response to crank chamber pressure. A control valve is disposed in the second passage and controls communication between the crank chamber and the suction chamber in the second passage in response to a signal generated outside of the compressor. A control circuit controls the generation of the signal in response to thermodynamic characteristics related to the evaporator. The signal activates or deactivates the second control valve when the characteristic indicates a value beyond a predetermined range of values.

Abstract: An ice rink formed from a shallow container having flotation elements on its bottom. The container is filled with water to such an extent that when frozen, the resultant ice layer will be suitable for ice skating. The bottom of the container may be provided with a refrigerant coil to freeze the water in the container. The specific gravity of the rink is less than unity to permit is use in a swimming pool.

Abstract: An L-shaped one-package type air conditioner comprising an air circuit unit which extends horizontally to be positioned indoors, and an outdoor unit which extends downwardly from the rear end portion of the air circuit unit is provided with an elongate member protruding downwardly from the lower surface of the air circuit unit, and with two projections. A bracket for installing the air conditioner is also disclosed. The bracket comprises: a fixing portion which engages with a window frame; an upper guiding portion extending horizontally; and a lower guiding portion extending vertically. The projections are guided by the upper and lower guiding portions.