Abstract: A hydraulic power system for a downhole device, including a first motor, a first hydraulic pump, a second hydraulic pump, a first main oil circuit, a second main oil circuit, a switching control module and a first execution module. The first motor has a first output shaft which drives the first hydraulic pump and has an oil outlet connected to an input end of the first main oil circuit and a second output shaft which drives the second hydraulic pump and has an oil outlet connected to an input end of the second main oil circuit; the first execution module is connected to an output end of the first main oil circuit; displacement of the first hydraulic pump is smaller than that of the second hydraulic pump; and the switching control module is connected between the first main oil circuit and the second main oil circuit.

Abstract: The present disclosure relates to systems, apparatuses, and methods for assembling cartridges for aerosol delivery devices. The cartridges may be assembled by coupling a base of the cartridge to a carriage that is transported via a track. The track transports the carriages between various substations at which one or more parts are added to the base. The carriage may be lifted from the track by a lifter mechanism at each substation in order to perform assembly operations on the base. An inspection system may inspect the cartridges at various stages of completion at or between the various substations.

Abstract: A machine tool is provided with a vertically aligned tool spindle, which is equipped for accommodating tools and which is movable in a vertical direction and in a first horizontal direction. The machine tool further comprises at least one jig for clamping workpieces to be machined. The at least one jig is movable in a second horizontal direction. The tool spindle and the at least one jig are arranged on a common machine frame. There is also provided a workpiece transport device, which is arranged on the machine frame, and which is adapted to perform at least one of introducing unmachined workpieces into the at least one jig and removing machined workpieces from the at least one jig. There is also provided a corresponding method of machining workpieces.

Abstract: A novel sawmill carriage knee and dog positioning system using a chain knee drive that allows vertical access to chain tension adjustment screws, provides a chain mounting attachment plate connected to an adequately sized air cylinder attached to a dogs in/out carrier slide increasing structural rigidity and reducing component count, weight and unit cost, and providing a novel method to taper the knees relative to the sawline.

Abstract: A machining device for material-removing machining of a workpiece includes a stationary frame, a workpiece magazine, a workpiece slide movable relative to the frame and accommodates a workpiece and a housing which encompasses a machining chamber and is located outside the workpiece magazine, wherein the workpiece magazine accommodates a plurality of workpieces, the workpiece magazine moves workpieces to an interchange point, the workpiece slide imparts translational movement to a workpiece along an X axis during workpiece machining and the workpiece slide is movable along the X axis to such an extent that the workpiece located on the workpiece slide is movable to the interchange point disposed outside the machining chamber encompassed by the housing.

Abstract: A band saw machine with a rod having an adjustable position to accommodate various sized workpieces includes a movable member which is mounted on a saw frame and movable relative to a movable clamp arm. The movable member and the fixing member each have a rack, and the racks are in parallel to each other. The rod includes a gear shaft engaged with the racks. When the movable clamp arm moves to accommodate the size of a workpiece, the rack of the movable member drives the gear shaft to move along the rack of the fixing member, which causes position change of the rod, so that the rod is automatically moved to a position where it can detect the workpiece in a reliable manner. Therefore, the size of the workpiece to be clamped is not limited by the position of the rod anymore.

Abstract: The present invention relates to a device for the treatment of a workpiece, in particular of a substantially flat substrate, comprising a table (2) for supporting the workpiece (5), a flow generation apparatus (6, 11) producing a gas flow (22) on a top face (17.1, 17.2) of the table (2) in a region between the workpiece (5) and the top face (17.1, 17.2) of the table (2), on which gas flow the workpiece (5) is supported during the treatment.

Abstract: A panel mount for non penetrative fastening of a panel (such as a glass pane). The panel mount has clamp jaws defining an elongate slot in which an edge of a panel can be received. A foot is provided for mounting and fastening the clamp jaws to a structure. At least one of the clamp jaws carries at least one threaded fastener that can be actuated by a user, including when the foot is fastened to the structure. The threaded fastener(s) of the at least one clamp jaw, in cooperation with the other clamping jaw, is capable of operatively clamping the panel to hold it in the slot, irrespective of any non-parallel disposition of the plane of the panel to the elongate direction of the slot.

Abstract: A work support comprises a plunger, a transmission member, a first chamber, a second chamber, a third chamber, a clamping mechanism, a plug, and a body. The plunger may be slidably retained within the clamping mechanism, which in turn is firmly held within the transmission member. The transmission member may extend and retract from the body corresponding to a pressure in the first chamber and the second chamber. Extension of the transmission member also extends the plunger such that the plunger may contact and receive a load from a work piece. The third chamber may be located between the outer surface of the clamping mechanism and the inner surface of the transmission member. Increasing pressure in the first chamber while decreasing pressure in the second chamber extends the transmission member and opens the plug which blocks the entry to the third chamber. Pressure in the third chamber closes the gap between the clamping mechanism and the plunger and applies a clamping force to the plunger.

Abstract: A hydraulic load support device comprises a pump unit that includes a reservoir chamber configured to contain hydraulic fluid and a reservoir passageway in fluid communication with the reservoir chamber. The pump unit further includes a connection interface having a delivery passageway in fluid communication with the reservoir passageway. The pump unit further includes a handle connected to the reservoir chamber that is movable to drive hydraulic fluid from the reservoir chamber. The hydraulic load support device further includes a pivoted jaw frame affixed to the connection interface. The pivoted jaw frame is movable from a closed position to an open position and vice versa. The pivoted jaw frame includes a head passageway in fluid communication with the delivery passageway and an actuator including a fluid chamber in fluid communication with the head passageway to receive hydraulic fluid and thereby move the pivoted jaw frame to the open position.

Abstract: A plug member (12) inserted into a positioning hole (5) formed in a second block (2) is projected from a first block (1). A plurality of slide portions (61) opposed to each other across the plug member (12) are arranged around the plug member (12) movably in a first radial direction (D1) substantially orthogonal to the opposed direction thereof. A first pressing member (15) and a second pressing member (19) are arranged outside the slide portions (61) diametrically expandably and diametrically contractibly and axially movably. The first pressing member (15) is driven toward a base end by a drive device, whereby the slide portions (61) expand the first pressing member (15) via the second pressing member (19), thereby the slide portions (61) are moved in the first radial direction (D1) with respect to the plug member (12).

Abstract: Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged from an unclamping pressure chamber through an unclamping pressure fluid passage and a second check valve. The resulting movement of the piston downwards brings a clamp member into contact with a workpiece to thereby clamp the workpiece on a table. Thus, a dedicated pressure source for clamping can be dispensed with.

Abstract: A lithographic apparatus is disclosed. The apparatus includes an illumination system arranged to provide a radiation beam, an article support configured to support an article to be placed in a beam path of the radiation beam, a multipolar clamp configured to provide a clamping pressure for clamping the article against the article support, and a bias voltage circuit for biasing at least one electrode of the multipolar clamp, such that the occurrence of ridges that appear due to static charges on the article may be circumvented.

Abstract: A fluid-actuated workholding apparatus that includes a base member that has a longitudinally extending slot and a fixed jaw attached thereto. The apparatus further includes first and second movable jaw members that are operably supported on the base member for movement towards and away from the fixed jaw member along the longitudinally extending slot. A clamping assembly is operably supported within the longitudinally extending slot and serves to define a fluid receiving cavity for receiving a pressurized fluid therein. The clamping assembly communicates with the first and second movable jaw members such that when a predetermined amount of pressurized fluid is admitted to the receiving cavity, the first and second movable jaw members are caused to move away from the fixed jaw member.

Abstract: A toggle lever clamp device for automobile body fabrication comprises a clamp housing (1) having a rectangularly shaped cross section wherein the cross-section is taken at a right angle to an axial direction of the housing. The housing is comprised of two parts (12, 13) and has a slot (19) on a rear side thereof that extends in the axial direction. The toggle lever clamp device further includes a cylinder (2) coupled to an end of the housing in the axial direction, a piston (6) axially located in the cylinder so that pressure can be exerted alternately on either side thereof, a piston rod (7) coupled to the piston (6) and extending axially through a part of the cylinder (2) and into a hollow space in the clamp housing (1); and a toggle lever joint arrangement (10) secured to a free end of the piston rod (7). An integral replaceable monitoring cassette (20) forms a cover in the area of a slot (19).

Abstract: A hydraulically-operated swing clamp (10) for holding and clamping a workpiece (14) to a fixture (12) is disclosed. The swing clamp (10) includes an improved cam assembly (24) that swings its clamping head (22) away from the workpiece (14) when the piston (22) of the clamp (10) is shifted to its extended, unclamped position. The cam assembly (24) includes at least one cam track or groove (38,40,42) and a corresponding cam follower ball (44) received within the groove (38,40,42). The cam track (38,40,42) includes a central arcuate region (48) and a pair of substantially planar side faces (50,52) extending tangentially from the central arcuate region (48). The central arcuate region (48) has a radius of curvature substantially equal to the radius of curvature of the cam follower ball (44). The planar side faces (50,52) extend tangentially away from the central arcuate region (48) and the cam follower ball (44).

Abstract: A fluid-actuated workholding apparatus that includes a base member that has a longitudinally extending slot and a fixed jaw attached thereto. The apparatus further includes first and second movable jaw members that are operably supported on the base member for movement towards and away from the fixed jaw member along the longitudinally extending slot. A clamping assembly is operably supported within the longitudinally extending slot and serves to define a fluid receiving cavity for receiving a pressurized fluid therein. The clamping assembly communicates with the first and second movable jaw members such that when a predetermined amount of pressurized fluid is admitted to the receiving cavity, the first and second movable jaw members are caused to move away from the fixed jaw member.

Abstract: A hydraulically-operated swing clamp (16) shiftable between a retracted, clamping position and an extended, releasing position is disclosed. The swing clamp (16) includes a speed control mechanism (26,52,54), which is formed directly on the clamp (16), for selectively and individually varying the speed at which the clamp (16) is shifted between its extended and retracted positions.

Abstract: A saw blade clamp unit for holding saw blade in a manner to permit machining of side faces of hard material tips provided upon the teeth of the saw blades. The saw blade clamp unit clamps a saw blade tooth adjacent to a saw blade tooth tip being machined, holding the saw blade. The clamping mechanism of the clamp unit is arranged to form a lateral reference position for the tooth to be machined, with the tooth being set to the required grinding position during the clamping operation.

Abstract: A clamping first piston (11) is inserted into a locking second piston (17) inserted into a cylinder bore (9) of a housing (4). A clamping member (7) is fixedly secured to the left portion of the first piston (11). A clamping first actuation chamber (21) is formed on the right side of both those pistons (11)(17), and an enclamping second actuation chamber (25) is formed on the left siede of the second piston (17). A wedgy space (30) is formed between the outer circumferential surface of the first piston (11) and the cylinder bore (9). A locking wedge (31) is inserted into the wedgy space (30) from right side and an unlocking engaging portion (34) is opposed to an unlocking engaged portion (33) of the first piston (11) from left side, so that these wedge (31) and the engaging portion (34) are fixedly secured to the second piston (17).

Abstract: In a heavy-duty saw assembly having a base, a pair of columns, a feed carriage guidably mounted upon the columns supporting a power-driven saw, a hydraulic lift feed cylinder assembly within each column and connected to the carriage, an elongated saw train extending at right angles to the base, including a plurality of transverse rollers, a sprocket chain connected to the rollers for selective rotation in unison for intermittently feeding an elongated workpiece onto the base transversely of and under the saw, spaced normally open rear and front hydraulic vises adjustably mounted upon the base adapted to selectively grip the work, and a pair of spaced manually rotatable lead screws journaled upon the base connected to the vises respectively, the improvement of a hydraulic circuit therefor which comprises first and second hydraulic circuits, first and second power-operated hydraulic pumps for feeding pressurized liquids into the circuits and a four-way, three-position, spring centered, solenoid-activated saw ca

Abstract: A movable carriage of a support unit is guided via bearing surfaces along a base. A double acting piston and cylinder unit is formed within a bore located in the base. A piston divides the cylinder into front and rear chambers and a piston rod thereof extends through the rear end of the cylinder and is connected to the carriage for movement therewith parallel thereto. A first pressure fluid connection extends through the front end of the cylinder into the front chamber. The bore has a sleeve, the outer surface of which partly defines a channel extending along the exterior of the cylinder. A second fluid pressure connection is also arranged at the front end of the cylinder, but it communicates with the channel to communicate with the rear cylinder chamber.

Abstract: A system for controlling the jaws of a self-centering pallet which can be moved between pallet supports at the loading and unloading station and the working station of a machine tool includes an external hydraulic control circuit with a pair of ducts each of which communicates, through a respective connector device, with a pair of supply and discharge ducts of a double-acting cylinder incorporated in the pallet to control the jaws. Each connecting device includes interengageable connectors projecting from the mutually-facing surfaces of the pallet and the pallet support, a non-return valve located upstream of the connector on the pallet, and a rod passing through the connector on the pallet support and able to advance and open the non-return valve under the action of a piston subject to a pilot pressure.

Abstract: A clamping system is provided for securing a part to be machined to a fixture so that the fixture and part can be transported as an entity from work station to work station and the part subjected to successive machining operations safely and efficiently. The fixture incorporates a hydraulic system comprising hydraulically actuated means for quickly positioning the part and clamping it securely to the fixture without a high degree of dependence on human judgement. Fluid under pressure actuates the hydraulic means, each element of which is isolated by check valves from the rest of the system so that failure of any one element of the system does not jeopardize the safety of the part being machined or of personnel supervising the machining operations.

Abstract: An apparatus for positioning and clamping a transferrable work-clamp pallet on the movable table of a machine tool of vertical or horizontal type. The pallet clamping device is composed of a bed plate on the movable table of the machine tool having transfer rails, guide rails, pallet supporting blocks, positioning devices and clamping devices. The work-clamp pallet is transferred onto the bed plate by its castors rolling on the transfer rails and guided by the guide rails. After high-precision positioning by the positioning devices, the pallet is clamped onto the supporting blocks. Devices are also provided for confirming proper positioning and clamping of the work-clamp pallet and for blowing off chips deposited on the supporting blocks.

Abstract: A mechine tool includes a movable work table assembled of a base part defining first clamping surface and of an exchangeable table part defining a second clamping surface levelled with the first one and being movable in guideways on the base part; a pallet changer having a rotary table provided with guideways aligned with the guideways on the work table unit supports pallets in the form of the exchangeable table part so that a workpiece can be clamped on one pallet while another workpiece on a second pallet is being operated in the machine.