Abstract: A three-stage compressor wherein the housing proper has a central bore with two adjacent bores that are co-axial therewith. A first piston is cooperative with the central bore to define a first stage compression chamber. A second piston smaller than the first piston but integral therewith is received by one of the adjacent bores to define a second stage compression chamber that receives its pressurized air from the first chamber. A third piston smaller than the second piston is received by the remaining one of the adjacent bores to define a third stage compression chamber that receives its pressurized air from the second chamber for further compression.

Abstract: A power transmission apparatus uses a vane pump in which a rotor coupled to a second rotary shaft is rotatably housed in a rotatable housing coupled to a first rotary shaft, and flow of hydraulic operating fluid in the vane pump due to relative rotation of the first and second rotary shafts is regulated to transmit drive force between the first and second rotary shafts. In the power transmission apparatus, small passages are formed in pump chambers defined between the housing and the rotor to permit flow, to a certain extent, of hydraulic operating fluid between delivery side chambers and suction side chambers formed by partitioning the pump chambers by movable vanes mounted in the rotor, thereby preventing fluctuation of torque transmitted between the first and second rotary shafts and preventing occurrence of cavitation in the pump chambers.

Abstract: A lubrication system for a rotary-piston internal combustion engine of the trochoid type with roller or needle bearings between the eccentric and the rotor. Lubricating oil in a dosed quantity is passed through a bore in the side part adjacent the gearing between the shaft and the pinion of the gear, from where it is supplied to the connection of the eccentric where, due to the centrifugal force, it is sprayed or splashed into a collector plate at the eccentric wall at the side of the gear. A bore leads from this collector plate to the eccentric bearing and passes the oil into the bearing under the influence of the centrifugal force. Excess oil serves to lubricate the gear and the gas seal elements.

Abstract: In a rotary type compressing apparatus, a check valve is positioned in a refrigerant gas inhalation unit, and an exhaust valve is positioned in a refrigerant gas exhaust unit. In addition, a control valve is employed at an inlet section of an exhaust pipe. One end of this exhaust pipe is opened inside a muffler which forms airtight space within a closed case. This control valve is actuated by means of a slider valve body by receiving specific pressure.

Abstract: There is disclosed a pressure extraction pump system for recovering liquid hydrocarbons from contaminated ground water collected in a well. The pump system includes a pump with a pump vessel and an open top sleeve extending above the pump vessel for skimming the upper portion of the liquid collected in a well bore. The pump also includes a liquid level sensing device for sensing the level of the liquid in the sleeve and activating a pumping cycle. The pump also has a quick closing intake valve.

Abstract: A closed type rotary compressor comprises: a closed housing, a driving electric motor housed in the housing and having a rotor rotating together with a rotary shaft, an upper bearing wall and a lower bearing wall housed in the housing for supporting the respective ends of the rotary shaft, a cylinder fixed between the upper and lower bearing walls and having a compression chamber therein, a rolling piston arranged in the compression chamber and eccentrically rotating together with the rotary shaft, and a rotating member arranged between the rotor and the upper bearing wall and rotating together with the rotor, wherein the cylinder is provided with an intake passage for feeding a refrigerant gas into the compression chamber, and a valve chamber for discharging the refrigerant gas through a discharge valve, the valve communicating a discharge passage formed in the upper bearing wall, and wherein the rotor is provided with a wider portion for covering an opening of the passage in the upper bearing wall and a nar

Abstract: A rotary engine in which rollers are inserted between the side wall of a seal groove and an apex seal such that the side wall of the seal groove and the apex seal are brought into rolling contact, the rollers are enhoused within a recessed groove formed in the side wall of the seal groove or in the side surface of the apex seal, and both ends of the recessed groove are enhoused in the corner seals assembled at both ends of the rotor so that the recessed groove is sealed.

Abstract: A gear-within-gear positive displacement pump, such as an automotive fuel pump, is disclosed having a pump chamber, an internal gear within the pump chamber, and an external gear within the internal gear. The pump chamber has an inlet and an outlet. The external gear is rotatably driven thereby causing the internal gear to rotate and further causing the teeth of the internal and external gears to unmesh thereby drawing fluid into the pump chamber between the gears and further causing the teeth of the gears to mesh so as to positively force the fluid out of the pump chamber. A pressure balancing passage way is provided between the portion of the pump housing in which the gear teeth mesh thereby permitting fluid under pressure to be directed to the exterior of the internal gear so as to pressure bias the internal gear generally toward the inlet and to at least in part balance the pressure forces on the internal gear with a consequent reduction of noise and increase in pump efficiency.

Abstract: The present invention relates to a bookcover-like folder or container for a guided menu having an upper and lower sheet joined by a lateral rigid ribbing, the menu provided on the inside part of such sheets. The folder also contains a supplemental sheet having the same size as the lower sheet and being extractable from inside of the same and on which drinks are described that compliment food items on the menu. A further bookcover-like container or folder is provided on the outside surface of the first sheet, and on the inside part of which, on a first internal surface, technical directions are provided for selecting complimentary food items on said menu and drinks, and cultural information is provided on a second internal surface.

Abstract: A reciprocating electric motor for wells includes a stator comprising a stack of coil groups surmounted by an annular power pack, the whole being mounted on a non-ferromagnetic tube and potted and slipped into a tubular ferromagnetic housing, the coils being helically wound strips of conductive material with their outer ends folded down to extend paraxially and their inner ends folded radially thereacross and then down paraxially to provide connections between like coils in each group forming a plurality of sets for simultaneous energization, and an armature extending through the stator coils and annular power pack for reciprocation therewithin, the armature including alternating ferromagnetic and non-ferromagnetic sections.

Abstract: An offset three-gear, two-system pump includes first, second, and third overlapping chambers. First inlet and low-pressure outlet ports communicate with the first and second chambers, and second inlet and high-pressure pressure outlet ports communicate with the first and third chambers. The first chamber has a short wall portion extending from the low-pressure outlet port to the second inlet port, and a long wall portion extending from the high-pressure outlet port to the first inlet port. First, second, and third gears are respectively rotatable in the chambers. The first and second gears form a low-pressure gear set, and the first and third gears form a high-pressure gear set. A small number of first gear teeth are cooperable with the short wall portion and a large number of first gear teeth are cooperable with the long wall portion to effect sealing against leakage from the pressure ports to the inlet ports.

Abstract: A cargo vehicle having a load stabilizing system on its cargo-carrying portion, and the vehicle has spaced inner and outer walls at each of its sides. The stabilizing system is provided at each side, respectively, of the vehicle and can move into and out of engagement with the cargo yet the mounting means for the stabilizing system is recessed into the hollow space between the inner and outer side walls of the vehicle. The stabilizing system includes a side panel or a pair of vertically spaced, parallel side panels for each side of the vehicle respectively. The mounting means for the side panels comprises support arms which are pivotally mounted on the ribs between the inner and outer walls. The mounting means includes sleeves welded to brackets affixed to the ribs. The sleeves are concealed between the vehicle side walls and the arms extend through slots in the inner side wall.

Abstract: A vane rotary compressor wherein at least the rotor, side blocks and vanes are formed from Si-Al alloy materials, respectively, the rotor and the side blocks or the rotor and the vanes differ from each other by more than 3% in terms of their silicon content. Thus, the compressor has improved wear resistance, seizure resistance, compression performance and durability.

Abstract: A hydraulic pump for a power steering apparatus is provided. Said pump comprises a housing, an outer gerotor element and a rotating inner gerotor element arranged within said outer gerotor element. A plurality of pressure chambers is defined and a pressure valve is assigned to each pressure chamber at the output side of the pump.

Abstract: A plug-in connection has two wedges (1, 2) with wedge surfaces (4, 4') inclined such that forces are created through the cooperation of the wedge surfaces (4, 4') in directions which are at a right angle to one another. A wobble-free fit in these two directions is achieved in this manner.The fastening of an information carrier (T.sub.1) on posts (P.sub.1) is suggested as a special use, whereby with a short plug-in path of movement, a wobble-free fit of the information carrier (T.sub.1) on the post (P.sub.1) is achieved.

Abstract: An applicator for mounting a block of solid lubricant to deposit a thin film of lubricant on the flange of a transit rail car wheel. The applicator (10) includes a bracket (12) adapted to mount the applicator to an unsprung portion of a transit rail car. A pivot arm (26) is pivotally connected at one end of bracket (12) and a block of solid lubricant (42) attached to a mounting plate (34) is bolted to the other end of the pivot arm. The block of solid lubricant is biased against the flange (40) of a transit car wheel by a torsion spring (28). A stop (32) prevents the pivot arm from contacting the wheel as the lubricant block wears by deposition of a thin film of lubricant on the rail car wheel flange as the wheel rolls.

Abstract: An internally meshing gear-pump, or motor comprises inlet and outlet ports 27,28 for the working fluid through a sealing plate 5 mounted on the shaft 1, an externally-toothed gear 2 is longitudinally displaceable relative to internally-toothed gears 3,4 to vary the pump or motor displacement, a sealing member 6 is secured to the end-face of the gear 2 which separates the displacement chambers 29,30 from the varying volume spaces which may be filled by controlled working fluid formed in both longitudinal and diametrically opposite regions 11,12. When the gear 2 is moved longitudinally from the maximum displacement position to the extreme left to a reduced capacity position and thus varies the output of the pump or motor mounting these machines back-to-back or in other combinations, a continuously variable and or differential transmission of working fluid may be obtained. Additionally electrical windings 85,86 may be mounted in the casings 7,8.

Abstract: Apparatus for simultaneously pumping two or more different liquids to a spraying device has a pair of discrete diaphragm pumps for each liquid. The pumps of each pair are connected in parallel and operate alternatingly so that one pump delivers a metered quantity of liquid while the pumping chamber of the other pump receives a metered quantity of the same liquid and vice versa. The capacities of pumps of at least one pair are adjustable in a simultaneous operation, and all pumps are operated by a common prime mover.

Abstract: In a method of applying a precisely measured quantity of grease to a desired part, the grease is stored and leveled in an open grease storing container at all times, and a grease applying pin is dipped into the grease through its surface and pulled out of the grease and then moved so that the grease on the grease applying pin is applied to the desired part, whereby the grease is maintained high in quality and the quantity of grease applied does not fluctuate.

Abstract: The present application describes a rail clip assembly, particularly but not exclusively for securing a crane rail to a flanged girder. The rail clip assembly comprises a body member (1) which has a base portion (2) for connection a rail support surface (3) and a lip portion (4) which can, in use, overlie an edge of a rail (5). The body member has a first surface (6) which, in use, extends parallel to the rail and abuts a lateral face of the rail, a second surface (8) facing away from the first surface and an elongate slot (9) for receiving a connector for connecting the body member to the rail support surface. The slot (9) extends in a direction which is generally inclined with respect to the first surface (6). The assembly further comprises a pivoting member (13) which pivots about a point which is located on the body member, the pivoting member including an aperture (14) for registration with the slot (9) and for receiving the connector.