Abstract: A bent section, which is bent substantially perpendicularly toward a main cylinder body, is formed at one end of a slide table. Further, a pair of ball-rolling grooves, in which a plurality of ball bearings roll, are formed on side surfaces of the slide table opposed to a guide section. A relief groove, which has a width wider than a spacing distance between the ball-rolling grooves and which makes it possible to change the direction of a processing jig when the ball-rolling grooves are processed, is formed at ends of the ball-rolling grooves disposed on a side of the bent section.

Abstract: The present invention relates to a hydraulic system, in particular for motor vehicles, including a master cylinder having a housing, a piston which is axially movably disposed therein, which bounds a pressure chamber filled with a hydraulic fluid, and which, upon actuation of the master cylinder, is axially moved by a piston rod acting upon the piston, thereby pressurizing the hydraulic fluid; further including a slave cylinder and a pressure-medium line connecting the cylinders; the master cylinder having an adapter for detachable connection to the pressure-medium line. The objective of improving the connection between the pressure-medium line and the adapter is achieved in that the adapter includes a sleeve made of a metal.

Abstract: The present invention relates to a brake booster with at least one booster housing section including an opening into which a sealing element made of a flexible material is mounted, said sealing element including a recess into which a pneumatic connecting element, in particular for the vacuum supply of the brake booster, is slidable. An object of the present invention is to precisely define the exit portion of a deflected connecting element in its rotational position relative to the housing of the booster in order to simplify and improve the assembly. This object is achieved in that associated projections and recesses are used to ensure that the connecting element can only be mounted into the sealing element at the correct angle.

Abstract: A choke valve of the clutch release cylinder wherein the actuating oil is slowly discharged when the clutch pedal is released, and when the clutch pedal is depressed, resistance to the actuating oil is minimized for the actuating oil to be swiftly and smoothly supplied to the clutch release cylinder, thereby improving the responsiveness of the clutch and preventing occurrences of noise and vibration when the clutch is in operation.

Abstract: The present invention relates to a brake booster (1) with at least one booster housing section (3) including an opening (13) into which a sealing element (1) made of a flexible material is mounted, said sealing element (1) including a recess (10) into which a pneumatic connecting element (5), in particular for the vacuum supply of the brake booster (1), is slidable. An object of the present invention is to precisely define the exit portion (9) of a deflected connecting element (5) in its rotational position relative to the housing (3) of the booster in order to simplify and improve the assembly. This object is achieved in that associated projections (6) and recesses (7) are used to ensure that the connecting element (5) can only be mounted into the sealing element (1) at the correct angle.

Abstract: A fluid cylinder such as a hydraulic cylinder used on marine engines to control the steering direction and/or trim position of a propeller shaft comprises internally ported fluid lines located in line with the longitudinal axis of the cylinder and may be either ported in the base of such a cylinder or, alternatively, in the head.

Abstract: A ram device has a cylindrical housing (10) in which is arranged a pressure medium actuated impact piston and a control unit for controlling the pressure medium flow into the housing (10) and which housing (10) at its rearward end is provided with a pressure medium connector (16) and is closable by a closure part (12). The closure part (12) is threadable into an end portion (22) of the housing (10) provided with an internal thread by an externally threaded section (18) and has a second threaded section (20) which stands in engagement with a counter element (22) which abuts a housing surface (40) perpendicular to the housing axis.

Abstract: A double-action hydraulic cylinder (3) is provided with an axially slidable piston between a front cover and a rear cover, whereby the piston may be coupled to an extreme load through a piston rod (4) and whereby the piston may be biased via connections (5) for a hydraulic medium at both sides with the hydraulic medium from an extreme pressure source. The connections (5) are attached to the cylinder barrel (6) by means of soldered joints to achieve a good surface finish and thereby also an optically appealing appearance together with a reliable mounting of the pressure connections.

Abstract: Radial pressure is applied to a turbine generator armature bar using a simple hand held device that can be readily manipulated by a single human operator. A retainer platform has two wedge shaped portions with handles, and by the operator sliding the wedge shaped portions with respect to each other the operative width of the platform may be adjusted, including to slide and lock the platform in a conventional dovetail slot in a stator. An inflatable bladder is positioned on or mounted to the top surface of the platform and is dimensioned so as to apply radial pressure (for example through a filler) to armature bars mounted in the stator. A conduit, preferably having a valve with quick-release actuator in it, extends from the inflatable bladder and connects to a source of gas under pressure.

Abstract: An actuator having a piston member slideable within a cylinder, the piston member defining with the cylinder a first chamber and a second chamber, the effective cross-sectional of the piston member exposed to the fluid pressure within the first chamber being greater than that exposed to the fluid pressure within the second chamber. The actuator further has first and second ports through which fluid can be supplied to the first and second chambers, respectively, and a third port located intermediate the first and second ports. The piston member and the third port are cooperable to throttle the rate at which fluid is able to escape from the first and second chambers through the third port, in use.

Abstract: In diaphragm compressors diaphragm heads with oil spaces of high energy content (pressure×volume) have a strongly negative influence on the operating response of the oil overflow valve. The reaction of the valve leads to undesirably long open times causing more oil to flow out than brought in by an oil compensation pump, and causing many strokes to occur during which the diaphragm is no longer moved to its dead point. Accordingly not all compressed gas is pushed out of the compressor, which is connected with a rapid lowering of the suction efficiency. This problem is solved by the invention in that a throttle mechanism is arranged inside or outside of the oil space which lowers the oil pressure inside of the conductor to the oil overflow valve during the process in question and creates a constant differential pressure within the viscosity band of the oil.

Abstract: A pressure medium system, particularly a hydraulic system, which includes at least one working cylinder (pressure medium cylinder) and at least one pressure medium line for the supply and/or discharge of the pressure medium whereby assembly and disassembly is made possible, especially in vehicles, without great (manufacturing) efforts and by economic production by using a detachable retaining clamp (6) which grasps the outside of a pressure medium coupling (3) and an end piece (5) of the pressure medium line (4), which may be inserted into the pressure medium coupling (3).

Abstract: A valve block mounting arrangement for mounting a valve block directly to the ports of a hydraulic motor. The inventive device includes a main body having a first bore, a second bore and a cartridge bore. The first bore and the second are substantially parallel to one another with the cartridge bore intersecting the parallel bores and designed for removably receiving a control cartridge. A first female coupler and a second female coupler are rotatably positioned within the bores for connecting to a pair of corresponding hydraulic hoses. A first male coupler and a second male coupler are rotatably positioned within the bores opposite of the female couplers for threadably securing to the first port and second port of a rear ported hydraulic motor. The female couplers are preferably connected to the male couplers thereby allowing an individual to apply a tool to the female couplers to rotate the male couplers into the ports of the hydraulic motor.

Abstract: The supply of pressure medium to hydraulic or pneumatic cylinders is usually carried out by means of pressure medium lines which are connected to the heads of the cylinders by means of standardized connection threads. This method of supplying pressure medium requires a minimum wall thickness of the casing of the cylinder in the connection region. In order to permit secure attachment of the pressure medium lines even when the minimum thickness which is necessary for the use of the standardized connection thread is not present, the outside of the casing of the cylinder is flattened in the vicinity of the exit point of a duct provided for the supply of pressure medium. A connection plate which is provided with ducts for the pressure medium is secured to the flattened part of the casing, and the connection plate is provided with a port for a pressure medium line.

Abstract: In the power steering apparatus, a casing comprises integrated separate sections of a valve casing in which a control valve is incorporated, a cylinder tube of a power cylinder, and a gear casing in which a steering gear is incorporated. In the cylinder tube are formed a pair of supply/discharge passages, which are parallel to the axial direction of the cylinder tube, and through which hydraulic fluid flows into/from the power cylinder. In the gear casing are formed, by casting, a pair of pipes which communicate with a pair of supply/discharge passages. In the valve casing are formed a pair of supply/discharge ports which communicate with the pair of pipes.

Abstract: A power steering cylinder assembly including a cylinder divided by a piston into opposite chambers and a valve controlling flow between a pump, a tank and the chambers. Bypass passages selectively connects the opposite chambers when there is no flow from the pump. The bypass passages includes first and second sets of axial passageways in the wall of the cylinder. Each passageway of the first set of axial passageways having an inlet in the first operating chamber and a first outlet in the exterior of the cylinder. Each passageway of the second set of axial passageways having an inlet in the second operating chamber and a second outlet in the exterior surface of the cylinder. The first and second outlets being in two respective circumferential lines on the exterior surface of the cylinder.

Abstract: A combination telescopic boat hook/bilge pump which includes a novel locking device is described. The inner tube is provided with a washer at the proximal end which acts with the outer tube as a piston. The ball tip distal end of the boat hook is provided with an axial bore so that water can be sucked into the outer tube for subsequent discharge. For use as a boat hook the inner tube is extended until a pair of spring loaded pins mounted in the inner tube at the proximal end thereof releasably engage any two of three circumferential slots provided adjacent the proximal end of the outer tube so as to provide an extended rigid shaft.

Abstract: An inner cylinder 6 is disposed in an outer cylinder 5, and the interior of the inner cylinder 6 is defined into an upper chamber a and a lower chamber b by a piston 3. A space between the outer cylinder 5 and the inner cylinder 6 defines an oil passage c which is communicated with the upper chamber a. A through hole-like plug which is attached to means P is formed in a bottom 5a of the outer cylinder 5. A female plug 11 and a male plug 12 are inserted from opposite ends of the plug accommodating means P, and a female screw portion 11n and a male screw portion 12b are formed on tip ends of the female plug 11 and the male plug 12, respectively, are threaded to each other. A recess 11d of the female screw 11n is brought into communication with the oil passage c through a first communication passage R.sub.1, and a recess 12d of the male screw 12n is brought into communication with the lower chamber b through a second communication passage R.sub.2.

Abstract: To provide a hydraulic master cylinder with inlet ports and outlet ports arranged in an angle to each other wherein the outlet ports can be on either side of the housing without the need of two different casts, the master cylinder according to the invention is equipped with either two sets of protrusions adapted to be machined into inlet ports or two sets of protrusions adapted to be machined into outlet ports. The two sets of identical protrusions are arranged symmetrically with respect to the one set of different protrusions. Thus, depending on the desired side of the outlet ports, only one set of the two sets of identical protrusions is machined while the other set remains an unmachined accumulation of material.

Abstract: An electro-hydraulic valve actuator comprising an actuator casing; a piston/rack means in the casing having walls reciprocating linearly to effect linear movements, the reciprocating walls defining a center chamber therebetween and two outside chambers inside the casing; an output shaft in communication with the piston/rack means for driving a valve, the output shaft effecting rotational movements in response to the linear movements of the piston/rack means; resilient return means in each of the two outside chambers engaging the reciprocating walls of the piston/rack means and inner end walls of the casing, the resilient return means biasing the reciprocating walls of the piston/rack means to a closed position; a pumping means; a primary internal flow path for transferring hydraulic fluid from the pumping means to a first output port and into the center chamber, the hydraulic fluid in the center chamber causing the piston/rack means to expand in the casing to transmit the linear movements to the output shaft;

Abstract: A stop cylinder and piston assembly has both a firing piston and a piston ed for both firing and return located on the same piston rod. The stop cylinder and piston assembly is designed with gas passages so that gas injected for firing purposes through a single aperture in the sidewall of a cylinder is applied to the rear surface of both the firing piston and the piston used for both firing and return. The system is reset by injecting return gas through a second sidewall aperture that is applied to the forward surface of the return piston. A vessel bumper is installed in the forward end of a chamber containing the firing piston to provide cushioning for the firing piston upon being fired.

Abstract: A linear actuator comprising a guide section formed along a longitudinal direction to protrude on a bottom surface of a slide table, a pair of guide blocks formed mutually opposingly and seperated from each other by a predetermined spacing distance on an upper surface of the main cylinder body, attachment holes for attaching the main cylinder body to another member in any direction of attachment from a side of the slide table or from a side of the main cylinder body, and an adjuster bolt for adjusting an amount of displacement of the slide table.

Abstract: A supercharge pressure control apparatus comprises a crimped member for securing an enclosure to a mounting member fixed in an internal combustion engine by crimping, a notch formed at one end portion of the crimped member for preventing the end portion from becoming cracked, a diaphragm disposed inside the enclosure for partitioning the interior of the enclosure into a first pressure room and a second pressure room, a holder disposed on the diaphragm and inside the second pressure room, a spring disposed inside the second pressure room for urging the diaphragm in the direction of the first pressure room or in the opposite direction through the holder, and a rod which is able to move backward and forward in accordance with the pressure of gas applied to the first pressure room for controlling the pressure of air to be supplied into the internal combustion engine.

Abstract: A gas spring element or gas cylinder element, particularly suitable for presses for non-cutting forming, including a closed non-compressible fluid system which includes the ring space between the piston or as the case may be piston rod and the cylinder or as the case may be cylinder head, wherein manipulation of the flow of fluid, which results from displacement movement of the piston, is used to hold the piston in the extended position and also to initiate release the piston rod, optionally including rate of return of the piston. Therewith there is achieved a complete timewise decoupling of the return stroke movement of a press ram and a piston rod.

Abstract: In a work cylinder (1) a ring (10) has been respectively inserted in the cross-sectional plane of the line connection (for example 6), which has a conduit (13) corresponding with the connection. At the highest point in the work cylinder (1) this conduit (13) is connected with the pressure chamber (for example 4) via an inlet opening (14). This arrangement has the advantage that the entrained air is carried along with the flow in the course of the movement of the piston (3). The air reaches the outside through the reservoir.

Abstract: A multi-piston assembly is illustrated wherein a cylindrical housing (A) is ported through longitudinal circumferentially spaced ports (F) and (G) carried within the cylindrical housing. Porting through piston rods is thus avoided so that their cross section may be reduced thereby increasing the area of the pistons available for contact by pressurized fluid. Even greater force may be made available for actuating a tool by the addition of an add-on unit utilizing complementary longitudinal porting.

Abstract: For attaching a cylinder device to an attachment surface extending perpendicularly to the axis of a piston rod, bolts are inserted through attachment holes which are defined in a rod cover and extend along the axis of the piston rod. A cylinder tube has recesses defined in respective four corners thereof for allowing the bolts to be inserted from a head cover toward the rod cover without being obstructed by the four corners of the cylinder tube. The cylinder device can thus be attached to the attachment surface with utmost ease.

Abstract: A motorcycle forward control for rear brakes. A housing internally carries a brake cylinder unit comprising a cylindrical chamber in which a plunger is operated through a linkage from a brake pedal. Pressurized brake fluid is directed from the cylinder through an internal channel in the housing along a path which exits through the rear of the housing and into a brake line leading to the rear brakes. The operating linkage includes a clevis-shaped lever which applies thrust forces evenly along the thrust axis of the plunger. A footrest is mounted on the housing with the provision being made for adjusting both vertical and laterally tilt positions of the footrest for rider comfort.

Abstract: A hydraulic control apparatus for use with a hydraulically operated tool comprises a valve body operatively and having a valve bore defining an axis. The valve body also defines a pressure port and a return port for connecting the valve bore to a source of hydraulic fluid, and a cross port communicating between the valve bore and the hydraulic tool. A tubular conduit has one end in communication with the valve bore and an opposite end in communication with the hydraulic tool. A selector member is moveable between a first position for defining a passage communicating between the cross port and the opposite end of the tubular conduit to provide a return path for hydraulic fluid between the pressure port and the return port, and a second position for closing off this passage.

Abstract: A fluid-pressure operated actuator has a body and an end cap which when telescoped in the body provides confronting grooves which receive a circlip in the form of a flexible length of wire spring. The end cap carries an O-ring seal axially only outwards of the circlip. Relative rotation between the body and end cap draws the circlip into position. A threaded plug, which may be secured to the outer end of the circlip, sealingly connects the body and end cap and may permit relative axial and angular movement.

Abstract: The invention relates to a profiled tube for working cylinders without a piston rod having a cylinder chamber which extends in longitudinal direction and a piston guided movably therein and connected to pull means, and a carriage connected to the pull means and guided in a slide guide arranged on the profiled tube.

Abstract: A cylinder apparatus includes a piston and a cylinder tube including a first end and a second end. The cylinder tube is formed to include a central bore extending from the first end to the second end for receiving the piston therein and a second bore extending from the first end to the second end spaced apart from the central bore. The cylinder apparatus also includes a first end cap coupled to the first end of the tube and a second end cap coupled to the second end of the tube. The second end cap is formed to include a first port in communication with the central bore of the tube and a second port in communication with the second bore. First end cap and second end cap have similar configurations and use substantially identical seals. Therefore, the semi-finished parts of the present invention have substantially identical configurations, regardless of the specific embodiment selected for a particular use.

Abstract: A deep well pump for positioning in a bottom hole assembly and having at least one fluid pump and at least two fluid powered motors with the pump and motor pistons carried in alignment on the piston rod. The pump includes passages for delivering a power fluid to one end of each of the motor cylinders and for receiving exhaust fluid from the other end of the motor cylinders, and a valve for reversing this operation. A first sleeve is positioned around the first motor cylinder defining a power fluid path from one end of the first cylinder to one end of the second cylinder, a second sleeve is positioned around the first sleeve defining an exhaust fluid path from the other end of the first motor cylinder, and a third sleeve is positioned around the second motor cylinder defining an exhaust fluid path from the other end of the second motor cylinder, with the first and second exhaust fluid paths interconnected.

Abstract: A clutch master assembly made of plastic material for an automotive vehicle. The assembly a plastic cylinder housing (1) and a piston (2) and a plastic bushing (3). The plastic bushing is arranged to allow it to be screwed in by means of a thread portion (4) which is located in the housing. By the screwing-in of the bushing a grooved disc (5) and a grooved cup (6) are secured in the assembly. The grooved cup is furnished with knobs (21, 22, 23) which exert a force in axial direction on the arrangement consisting of the grooved cup (6) and the grooved disc (5). The piston-side enlarged end of the piston rod (31, 104) is secured within the piston (2, 103) by a back injection.

Abstract: The invention relates to a piston vibrator comprising a case with at least one cylindrical bore (5), at least one air connection (7) taken laterally to the bore (5), and a piston (2) longitudinally displaceable in the bore (5). As a means of making such a vibrator more efficient with a given outside diameter, or as a means of making it more compact and smaller with the same degree of efficiency, the invention proposes that the cylindrical bore (5) should extend asymmetrically to the external wall area (6) of the case, at least at the axial level of the air connection (7).

Abstract: A deep well pump for positioning in a bottom hole assembly and having at least one fluid pump and at least two fluid powered motors with the pump and motor pistons carried in alignment on the piston rod. The pump includes passages for delivering a power fluid to one end of each of the motor cylinders and for receiving exhaust fluid from the other end of the motor cylinders, and a valve for reversing this operation. A first sleeve is positioned around the first motor cylinder defining a power fluid path from one end of the first cylinder to one end of the second cylinder, a second sleeve is positioned around the first sleeve defining an exhaust fluid path from the other end of the first motor cylinder, and a third sleeve is positioned around the second motor cylinder defining an exhaust fluid path from the other end of the second motor cylinder, with the first and second exhaust fluid paths interconnected.

Abstract: A modular handling system is assembled from a plurality of linear drive, rotary drive, or tool modules. The linear drive used as a cylinder block with a cylindrical bore therein and cylinder heads sealing off the cylindrical bore. A pneumatically actuated piston travels within the cylindrical bore. A carriage runs on the cylinder block and is connected with the piston by means of a flexible belt attached to both the piston and the carriage and deflected by deflection rollers mounted on the cylinder heads. Cartridge-type valves are integrated into both cylinder heads for controlling displacement of the piston. One of the cartridge valves is made as a pressure-servo-valve allowing linear control of valve output pressure vs. valve operating current. The cartridge valve integrated into the opposite cylinder head may be either another pressure-servo-valve or a displacement-servo-valve allowing linear control of valve spool displacement vs. valve operating current.

Abstract: The master cylinder (10) comprises a front or first housing part (12) which is generally U-shaped and a second or rear housing part (14) which is also generally U-shaped, the second housing part (14) being received within an end opening of the first housing part (12). The second housing part (14) has an end opening (16) opposite the first housing part (12) through which a first piston (18) is received. The first piston (18) and a second piston (22) are biased by respective resilient mechanisms (20, 24) disposed within a bore (26) defined by the parts (12, 14). Captured between the first and second housing parts (12, 14) are first and second interface members (80, 90) which have seals insert molded thereon. The first and second housing parts (12, 14) are held together by self-threading screws (100) such that a predetermined clamp load is imposed upon the interface members (80, 90). The master cylinder (10) has outlets (34, 36) all of which are oriented longitudinally toward the fron of the master cylinder.

Abstract: A fluid-operated actuator (2) is connected to a pumping unit (12) through a control unit (10) in which are mounted control valves (30,32) for regulating the movements of the actuator. The control valves communicate with the actuator and the pumping unit through conduits in replaceable adaptor plates (60a,60b,60c). By changing the adaptor plates, different operating modes of the actuator can be selected. The pumping unit is carried on the control unit through a rotationally adjustable connection to permit it to be mounted upright although the orientation of the actuator and control unit may vary.

Abstract: A fabricated master cylinder having a reservoir part and in interlocked cylinder part defining a cylinder bore and which a slidable piston is supported. The reservoir part that extends into the cylinder bore defines a shoulder that cooperates with a recuperation valve for forming an actuating stop for holding the makeup fluid recuperation valve in an opened position when the piston is at its at rest position.

Abstract: A rotary actuator for converting a linear reciprocatory movement of a piston into a rotary reciprocatory movement of an output shaft through a connecting member. The rotary actuator includes a cylinder case formed with a pedestal in a position in which the output shaft extends vertically out of the cylinder case. The pedestal is formed with a substantially square elevated portion, and a depressed portion defined by the elevated portion. A plurality of projections spaced apart from each other by a predetermined angle are formed integrally with the pedestal in the depressed portion to constitute dividing lines of a scale for indicating the angle of rotation of the output shaft by means of a pointer.

Abstract: A lightweight linear hydraulic actuator which is unusually inexpensive to fabricate includes a cylindrical barrel of metal tubing material, a head end gland and a rod end gland fastened to the barrel, a piston and a rod in the barrel with the rod extending through the rod end gland, ports in the sidewall of the barrel on opposite sides of the piston and fitting members having channels in registry with the ports, the fitting members including hoop type attachments around the exterior surface of the barrel and a curved surface mating with the curvature of the barrel. A circular groove is formed in the surface of the barrel around each of the ports and an O-ring seal is located in the grooves sealing against the curved surface of the fitting member. An axial extension forming part of each of the fittings includes a boss receiving a threaded fastener for fastening the fittings to the barrel.

Abstract: An actuator driving system for driving a plurality of actuators operable by a fluid under pressure includes a plurality of tube joints connected respectively to the actuators for being coupled with a plurality of double-walled tubes each having a plurality of passages. Each of the tube joints includes a base member having passages communicating with respective fluid ports of one of the actuators and mounted on said one actuator, and a body member having a first cylindrical body mounted on the base member and a second cylindrical body having a hole for insertion of one of the double-walled tubes therein, to allow the passages of said one double-walled tube to communicate respectively with the passages of the base member, the first cylindrical body being angularly movable with respect to the base member.

Abstract: A die cylinder assembly is designed for use in an environment which has contaminants outside the assembly. The die cylinder assembly includes a piston disposed in a cylinder and having an outer end surface. The piston is moved in one direction by forces applied to the outer end surface of the piston. The piston is moved in an opposite direction by a working fluid pressure in a head end chamber of the cylinder. The cylinder includes a rod end variable volume chamber which is connected in fluid communication, through a first passage in the piston rod, with a third chamber located in the piston rod. The fluid pressure in the rod end chamber is always maintained at least as great as ambient fluid pressure to prevent contaminants from entering the rod end chamber. A check valve in a second passage admits outside air to the third chamber when fluid pressure in the third chamber drops below ambient pressure. A relief valve vents the third chamber if fluid pressure therein becomes too high.

Abstract: In a rodless cylinder comprising a series of driving magnets mounted on a piston fitted in a cylinder tube and a series of driven magnets on a driven member sliding along the cylinder tube, piping to convey a hydraulic fluid is simplified as follows. Both ends of the cylinder tube and guide rods extending parallel thereto are fastened to two end plates. Two ports through which the hydraulic fluid is supplied to and discharged from pressure chambers on both sides of the piston in the cylinder tube are provided in one of the end plates. While one of the ports communicates directly with one pressure chamber through the end plate, the other port communicates with the other pressure chamber through one of the guide rods and the other end plate. The driven member sliding along the cylinder tube carries the series of driven magnets and two annular sliding members on both sides thereof in such a manner as to be movable in the direction perpendicular to the axis of the cylinder.

Abstract: A linear air compressor having a linear electrodynamic motor which is air cooled and has an increased stroke and accordingly increased output. The working piston is provided with and stroke parting on a push-pull spring provides for centering of the plunger of the motor.

Abstract: A linear to rotary actuator is disclosed having a fluid pressure operated diaphragm whose linear movement is translated into rotary movement of an output member by a helical coupling therebetween. The coupling comprises a coupling member that is insert molded in the diaphragm so as to extend therethrough and interlock therewith while preventing fluid from passing from one diaphragm side to the other. The coupling member has a combined guide and anti-rotation portion extending from one side of the diaphragm that slidably engages a stationary guide so as to guide linear movement while preventing rotational movement of the coupling member and further has a helix extending from the other side of the diaphragm which in one embodiment slidably engages in a slot directly in the output member whereby linear movement of the diaphragm forces linear non-rotational movement of the coupling member and thereby rotary movement of the output member.

Abstract: A locking arrangement is provided which can be released from its locking state by means of a pressurized fluid, and to a nozzle through which pressurized fluid can be supplied to the locking arrangement to release the same. The locking arrangement includes a latch bolt (6) which is connected to a plunger (5) arranged for axial movement in a chamber (4), the plunger dividing the chamber into two, substantially pressure-tight part chambers (4a, 4b). The plunger (5) is biassed towards its locking position by a spring means (8) and can be moved axially to a lock release position, against the force of the spring means by a pressurized fluid, e.g. compressed air, lead into the one part chamber (4a). To this end, the aforesaid one part chamber (4a) communicates via an opening (12) in a chamber wall (13) with a fore-chamber (14) which is located externally of the chamber (4) and which communicates with the other part chamber (4b) through a second opening (15) in the aforesaid chamber wall (13).

Abstract: An expansible device for exerting force which has a generally "S" shape cross-section, being formed by stepped diameter cylinder, and arrangements using such a device are disclosed. The device may exert sealing forces and be controlled by admission of fluid pressure which acts on a thin wall member so supported as to be subjected to compressive stress alone.

Abstract: A fluid connection for a container and a method of making the connection is escribed. The connection is provided subsequent to the manufacture of the container according to the teachings of the present invention.