Abstract: A portable pipe thrusting apparatus for inserting and removing a pipe from a borehole, comprising a collar configured to releasably grip the pipe; and a bi-directional driver coupled between the collar and the support frame, the driver configured to drive the collar toward and away from the borehole, to insert and remove the pipe from the borehole, wherein the support frame is portable and is transportable by a truck to the drilling site.

Abstract: An adapter for connecting a helical pile to a drive assembly includes a pin block connectable to the helical pile. A tool body has a first protrusion to receive the pin block to facilitate aligning the helical pile with the tool body. A locking member is movably connected to the tool body. The locking member is movable between an insertion position to allow insertion of the pin block and a locking position to lock the pin block in the tool body.

Abstract: A mine roof support system includes an elongated anchor rod or tendon having a rigid non-deformable distalmost anchoring end portion, and one or more axially deformable portions which are configured to deform in the event load forces exceed a threshold force approximating the forces during a rock burst or rock dilation event. The rigid anchoring portion is provided with primary anchor members such as ribs, gooves, studs and the like. The primary anchor members are configured to reduce bar plasticity, and fixedly secure and retain the rigid portion in place in a drill hole. In the event rock forces exceed the threshold force, the plastically deformable portions elongate with the dilating rock to accommodate and absorb the rock forces.

Abstract: Method in a pneumatic material conveying system, such as in a waste conveying system, which conveying system comprises at least one input point (1) of material, more particularly of waste material, a material conveying pipe (2, 3), which can be connected to an input point (1), and a separating device (4), in which the material to be transferred is separated from the conveying air, and also means (5) for achieving a pressure difference in the conveying pipe (2, 3) at least during transfer of material. The actuator (12) of the valve means (11, 300, 400) arranged between an input point (1) and the conveying piping (2, 3) is driven and/or controlled with water to be conducted from the water mains network (22).

Abstract: A tool is provided. The tool comprises an interchangeable cutting portion and a holder to which the interchangeable cutting portion is adapted to be replaceably mounted. The interchangeable cutting portion comprises a first part with at least one cutting edge and a second part for connection to the holder, the second part being provided with a conical external abutment surface and an external cylindrical screw thread. The holder is provided with an internal cylindrical screw thread, to which the external screw thread is removably screwed, and a conical internal abutment surface, the conical external abutment surface and the conical internal abutment surface being mutually engageable for positioning the cutting portion and the holder relative to one another.

Abstract: The present invention relates to a cutting insert for a cutting tool for the chip-removing high feed milling machining of workpieces, the cutting tool having a holder with a seat for receiving the cutting insert, the cutting insert having at least one cutting edge lying in a covering surface. To achieve a higher feed speed and greater cutting depth, particularly during high feed milling, there is provision, according to the invention, whereby the cutting edge has in portions three different radii of curvature, a first portion having the smallest radius, a middle second portion adjoining it having the largest radius, and a third portion adjoining the latter having a medium radius lying between the smallest and the largest radius, and whereby a peripheral line, running through all the cutting edges, of the covering surface is exclusively convexly curved. The invention relates, furthermore, to a correspondingly configured holder and to a cutting tool.

Abstract: A cutting tool has a cutting insert, a tool holder, and an adjustment member. The tool holder includes an insert holder portion and a shank portion, the insert holder portion being rigidly fixed to the shank portion. The cutting insert is removably secured to the insert holder portion by a fastener, at a cutting position in which the operative cutting portion encounters a workpiece at an insert cutting angle. The adjustment member is a non-threadingly retained on the insert holder portion, and operatively connected to the cutting insert. Actuation of the adjustment member causes an increase or decrease of the insert cutting angle.

Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.

Abstract: An inspection point positional information acquisition step of acquiring thermal displacement positions of at least three inspection points set on a support member; an approximate curve calculation step of calculating an approximate curve of a deformed shape of the support member on the basis of the thermal displacement positions of the inspection points; a correction value calculation step of calculating a correction value for a command position of a movable member on the basis of the command position and the approximate curve; and a correction step of correcting the command position of the movable member using the correction value, are provided.

Abstract: A drilling device drilling to a desired depth without a gauge. The drilling device includes a distance sensor positioned on an imaginary line spanning between a front end of the housing and a hand gripped portion. The distance sensor is away form a front end of a gear housing by a distance Ls. The distance sensor provides an effective measurement range. The relationship of L1?Ls and Ls+Lb?L2 is satisfied where L1 represents a distance between the distance sensor and a point closest to the distance sensor and defining a lower limit of the effective measurement range, L2 represents a distance between the distance sensor and a point farthest from the distance sensor and defining an upper limit of the effective measurement range, and Lb represents a distance between the front end of the housing and a tip end of the end bit.

Abstract: The present invention concerns a tool head comprising a machine connection for connecting the tool head to a machine tool, and a tool 5 portion which either has at least one geometrically defined cutting edge or has a receiving means for a tool insert having a geometrically defined cutting edge. To provide a tool head, like a drilling head, and a method with which highly precise machining is possible with very high feed speeds and good surface quality without the cutting edge being exposed to 10 a high rate of wear, it is proposed that there is a converter for converting electrical AC voltage into a mechanical vibration, wherein the converter is arranged, designed and connected to the tool portion so that the unit comprising the converter and the tool portion and possibly a tool insert 15 received in the receiving means can be excited to perform an ultrasonic vibration.

Abstract: The invention relates to a deep-hole drill, comprising a first coating extending over the effective length of the guide section and a second coating that is applied to the tip of the drill in the cutting region, the region of which extends over an axial length that, at a maximum, corresponds to double the nominal diameter of the drill. In such a way, when the bore tip is worn by use, said tip can be recoated after sharpening without the nominal diameter of the drill tip substantially increasing, in particular even after being sharpened several times.

Abstract: A method for manufacturing a drill bit (1), wherein in a first step the chip flutes (12) are ground into a round rod, in a second step the round rod is ground down to its outer diameter (15, 16) with simultaneous grinding of the drill-bit back (13), and wherein in a third step the drill-bit front (4) is ground, and a drill bit (1) having at least one chip flute (12) and one secondary cutting edge and one drill-bit back (13) adjoining the secondary cutting edge, the drill-bit back (13) sloping downwards as the distance from the secondary cutting edge increases, in order to create a clearance that becomes continuously larger as the distance from the point of intersection (19) of the secondary cutting edge with the drill-bit back (13) increases.

Abstract: An adjustable depth stop mechanism including a support element with a through hole for receiving an elongate depth stop element which is provided with a tooth arrangement at at least one surface portion. The tooth arrangement extends in longitudinal direction of the depth stop element and is fixed against displacement in longitudinal direction in a latch position by a latch device provided on the support element. The depth stop element can be moved out of the latch position by rotation about its longitudinal axis to a position in which it can be displaced in longitudinal direction with respect to the support element.

Abstract: The present invention is directed to an insert, a slotting cutter assembly and a method for machining a plurality of slots in a metallic alloy part. The insert may comprise a cutting edge, at least one primary radius, at least two secondary radii and a clearance angle. The cutting edge may form a narrow outer end at a tip of the insert and a larger width region at a distance inward from the narrow outer end. The clearance angle may extend rearward from the cutting edge. The slotting cutter assembly may comprise a plurality of inserts and a cutter body. The cutter body may comprise a plurality of retaining slots and a plurality of support portions. The retaining slot may be configured to receive the insert. The support portion may provide support for the insert.

Abstract: A multi-axis machine tool includes a housing composed of interconnected housing wall panels, and a slide guide member disposed inside and fixed to the housing wall panels. A first slide has a first frame composed of interconnected first wall panels and slidable on the slide guide member to move along a first axis. A second slide has a second frame slidable on a first guide member disposed inside and fixed to the first wall panels and movable along a second axis perpendicular to the first axis. A tool operator is mounted on the second frame, and a workpiece holder is mounted to the housing proximate to the tool operator. The machine tool has a simple high precision structure.

Abstract: A device for fastening a component to a fastening stud includes a holding member and a holding disk for contacting first and second surfaces of the component, respectively. The holding member and holding disk are preliminarily connected with one another, without the fastening stud, each in the state contacting the component. The holding disk has fastening projections and at least one elastic member which prohibits the fastening projections from contacting the second surface of the component, so that the device is moveable with regard to the component in a direction perpendicular to the moving direction of the fastening stud through a through hole of the holding disk. The elastic member is elastically deformed upon mounting of the fastening stud through the through holes of the holding disk and the component, such that the fastening projections contact the second surface of the component.

Abstract: A captive float nut comprising a nut body having a threaded aperture defined there-through for receiving a threaded shaft. An anchor element is moveably coupled to the nut body to provide a predetermined freedom of movement of the nut body in six degrees of freedom. The anchor element comprises one or more finger elements having outwardly depending terminal portions have a sharp tine element on the terminal portion. The tines are driven in the interior surface of a bore so as to grip and affix the anchor element therein and affix the captive float nut to a structure.

Abstract: There is provided a bolt support structure which can absorb displacement of a bus bar and prevent the bus bar from bending during fastening of bolt, having a bolt including a head portion and a shaft portion and a mount portion to which the head portion is mounted movable in an axial direction of the shaft portion. The mount portion includes a bottom and upper plates between which a large-diameter portion of the head portion is positioned. The shaft portion and a small-diameter portion of the head portion are passed through a notch of the upper plate. A gap between the bottom and upper plates is larger than the thickness of the large-diameter portion. After the head portion is mounted to the mount portion, the nut is attached to the shaft portion so that the bus bar and the terminal clamp are sandwiched between the head portion and the nut.

Abstract: A structure for preventing an incorrect advance of screws capable of reliably preventing incorrect screw advance with a simple configuration is provided. The incorrect screw advance preventing structure of the present disclosure includes: a first member having a screw hole in which a screw thread corresponding to the screw is formed; and a second member having an opening provided in a position opposed to the screw hole, and a slope part that rises from a peripheral edge of the opening toward the first member. In this structure, a tip of a long screw which is inadvertently inserted is guided in a predetermined direction by the slope part. Therefore, it is possible to prevent the tip of the screw from reaching an area to be protected, or let the tip of the screw move away from the area to be protected.

Abstract: When handling a foil band (6) which is to be uncoiled from a delivery spool (2) and is drawn in gradually by a drawing-in device (4), a foil band loop (7) is produced. In order that this can take place without any errors with high production cadences, provision is made of an arrangement (1) in which a hollow cylinder (10) rests loosely on the band with a limited freedom of movement so as to form the band loop. Such an arrangement is preferably provided for the production of peel-off lids, in which a foil band is uncoiled from a band delivery spool and fed to a stamping and sealing station.

Abstract: A folding bale spear system including a frame securable to a farm implement, particularly a tractor, left and right fork posts rotatable secured to the frame, left and right bale spears, one secured to the left fork post and one secured to the right fork post, and a system for rotation of the left and right fork posts about the frame such that in an open position, the bale spears are extended rearwardly from the frame, and in a closed position the bale spears cross each other and are rotated to a position substantially parallel to the frame.

Abstract: A heat treatment apparatus includes a vessel loading unit on which a substrate vessel configured to accommodate a plurality of substrates at a first interval is loaded, a substrate holder configured to hold the plurality of substrates at a second interval which is smaller than the first interval, a substrate transfer unit capable of supporting the substrates and configured to transfer the plurality of substrates between the substrate holder and the substrate vessel and includes at least two substrate supporting parts stacked with the first interval therebetween and configured to be simultaneously advanced and retreated relative to the substrate vessel and individually advanced and retreated relative to the substrate holder, and a control unit configured to control an upper one of the at least two substrate supporting parts to be in an inoperative state when a lower one is supporting the substrate.

Abstract: To suppress deformation of a portion to be clamped even when a load applied to the portion to be clamped is increased at the time of fixing a front opening unified pod (FOUP), a clamping arm pivotable between a retracting position and a clamping position about a rotational axis inclined relative to a bottom surface of the FOUP is arranged. The clamping arm is housed in a housing depression so that the clamping arm at the retracting position is situated below a surface of a mount base, and at the clamping position, protrudes from the surface of the mount base and becomes engageable with the portion to be clamped.

Abstract: A load lock is provided for a semiconductor substrate processing system having a transport robot mounted therein. The load lock transport supplies substrates directly to a processing chamber without the need for a central transport robot. The load lock transport is a dual element robot designed for minimum clearance and space and operates within a matching load lock chamber of minimum volume.

Abstract: Provided are an apparatus and method for treating a substrate. More particularly, an apparatus and method for treating a substrate through a supercritical process are provided. The apparatus includes a housing having an entrance in a side thereof and providing a space for performing a process, a door for opening and closing the entrance, and a support member disposed on the door to receive a substrate thereon.

Abstract: An integrated robotic mechanism is disclosed for improving transport equipment, integrating an object movement with other functionalities such as alignment or identification. The disclosed integrated robot assembly can comprise a multiple end effector for moving a plurality of workpieces, a single end effector for moving a single workpiece, a rotation chuck incorporated on the robot body to provide alignment capability, and an optional identification subsystem for identify the object during transport. The present invention robot assembly can be used in a sorter or stocker equipment, in processing equipment, and a transfer system.

Abstract: An automatic positioning device includes a holder, a first motor, a securing block, a second motor, and a connecting rod. The first motor is mounted on the holder and horizontally slides relative to the holder. The securing block is fixed with the first motor. The second motor is mounted on the securing block and vertically slides relative to the securing block. The connecting rod is connected with the second motor. The first motor drives the connecting rod moving horizontally and the second motor drives the connecting rod moving vertically.

Abstract: Disclosed is a telescoping ramp, comprising a frame, a plurality of extendable ramp members and a magnetic base for securing to a tailgate structure. The ramp members comprise a plurality of aligned, telescoping members that form an extendable ramp, wherein the members form into one another and are extendable by separation of a first ramp end from an opposing second ramp end, the members being connected therebetween. The first ramp end connects to upstanding portions of the frame and within a slotted channel. The channel allows the first ramp end to be moved horizontally and vertically within the frame to position the condensed ramp within the frame interior, while also allowing the extended ramp to clear the frame and facilitate a smooth transition between the ramp and the frame when loading objects thereacross. The ramp members are box structures that condense into one another and include progressively tapering cross sections.

Abstract: A cart having an adjustable elevation auger. A junction box may located within the opening of a sump of a bin of a cart. The junction box may have an open top, closed bottom and sides, and back wall. The back wall of the junction box may be secured to a bin wall by a hinge such that the junction box may pivot about a pivot axis. An auger housing may be connected to and extend from the junction box. An auger may extend through the auger housing and have an intake end disposed within the junction box. The auger housing and auger may pivot with the junction box about a pivot axis between a lowered position and an elevated position. The auger may be a corner auger and may be a folding auger.

Abstract: A working machine hydraulic circuit, including: a hydraulic motor; a pilot pressure system configured to supply hydraulic fluid at a pilot pressure to one or more components of the working machine; and a make-up pressure system in hydraulic fluid communication with the pilot pressure system and the hydraulic motor, and configured to supply hydraulic fluid to the hydraulic motor from the pilot pressure system if the hydraulic fluid pressure in a part of the hydraulic motor is below a threshold pressure such that, during deceleration of the hydraulic motor, the make-up pressure system is operable to supply fluid from the pilot pressure system to the hydraulic motor to reduce the risk of cavitation in the hydraulic motor.

Abstract: A pallet fork including a frame and a fork tine. The frame supports a fork bar and a carriage plate. Further, the fork bar and the carriage plate extend in a longitudinal direction of the pallet fork. The fork tine is mounted to the fork bar. Also, the fork tine has a swingable motion and a lateral motion relative to the fork bar. Moreover, the fork tine includes a vertical leg and a horizontal leg. A bracket is attached to the vertical leg of the fork tine. A first locking member is selectively inserted in the bracket to engage the fork tine with the carriage plate and restrict the swingable motion of the fork tine.

Abstract: In accordance with one or more aspects of the disclosed embodiment an apparatus is provided. The apparatus includes a pick head configured to transfer sample containers to and from a sample group holder, at least one sensor connected to the pick head and configured to detect at least one predetermined feature of the sample group holder, and a controller configured to receive a detection signal from the at least one sensor corresponding to detection of the at least one predetermined feature, determine a change in a predetermined characteristic of the sample group holder based on a detected position of the at least one predetermined feature, and determine a location of one or more samples in the sample group holder to allow for the transfer of the one or more sample containers to and from the sample group holder based on the edge detection signal.

Abstract: A sheet processing apparatus includes a sheet conveying path; a sheet entrance unit provided in the sheet conveying path; a sheet discharge unit provided in a location separated from the sheet entrance unit by a predetermined distance; a driving unit that drives the sheet entrance unit and the sheet discharge unit; a sheet guide unit that guides sheets and is provided between the sheet entrance unit and the sheet discharge unit to allow the sheets passing through the sheet entrance unit to be sequentially stacked; and a sheet buffer device that is configured such that the stacked sheets pass through the sheet discharge unit while the stacked sheets are loaded on a step with each leading end of the stacked sheets being separated with a predetermined interval.

Abstract: A system for supporting a shaft inside a turbine includes a support member having load and counterweight portions. A fulcrum is between the load and counterweight portions, and the load portion is configured to fit inside the turbine. Nests are connected to the support member between the load and counterweight portions, and the nests are configured to rigidly connect the shaft to the support member. A counterweight is connected to move along the support member only on the counterweight portion of the support member. A method for supporting a shaft inside a turbine includes inserting a support member inside the turbine and connecting the shaft to the support member. The method further includes connecting a crane to a fulcrum on the support member, lifting the support member and shaft with the crane, and moving a counterweight on the support member to change a horizontal angle of the support member.

Abstract: A drive section for a substrate transport arm including a frame, at least one stator mounted within the frame, the stator including a first motor section and at least one stator bearing section and a coaxial spindle magnetically supported substantially without contact by the at least one stator bearing section, where each drive shaft of the coaxial spindle includes a rotor, the rotor including a second motor section and at least one rotor bearing section configured to interface with the at least one stator bearing section, wherein the first motor section is configured to interface with the second motor section to effect rotation of the spindle about a predetermined axis and the at least one stator bearing section is configured to effect at least leveling of a substrate transport arm end effector connected to the coaxial spindle through an interaction with the at least one rotor bearing section.

Abstract: A method includes: detecting a splice by splicing in a tape feed process of supplying a component by pitch-feeding the carrier tape; and performing data processing of writing splice component information over in-use component information when the splice is detected, and rewriting only a number of remaining component of the in-use component information by means of the number of remaining component of the splice component information without issuing a component depletion alarm when the splice is not detected and when the number of remaining component in the in-use component information has decreased to a predetermined value.

Abstract: A bulk shipping container has a plurality of removable supporting legs extending downwardly from a periphery of its interior space beyond the bottom of the container to support the container in an elevated position above a floor. Reinforcing straps positioned on the container hold the legs in their extended positions. A dolly may be positioned beneath the elevated container and the reinforcing straps removed to enable the weight of the container to cause it to slide down along the plurality of removable supporting legs to a lowered position resting on the dolly, which may then be used to transport the loaded container into a building for removal of product from the container.

Abstract: An apparatus that is changeable between a trailer configuration, in which the apparatus is configured and usable as a trailer, and a truck bed cover configuration, in which the apparatus is configured and usable as a truck bed cover. The apparatus includes a bed having a top surface, a wheel assembly attached to the bed, and a towing assembly coupled with the bed, the towing assembly being configured to couple with a hitch of a vehicle. The bed can include a center deck section and a pair of side deck sections slidably coupled to the center deck section such that the side deck sections can be slid laterally with respect to the center deck section to adjust the width of the apparatus. A method of converting the apparatus from a trailer to a truck bed cover is also included.

Abstract: A blade outer air seal assembly includes a body that defines a first cavity separated from a second cavity by a circumferential rib. The circumferential rib includes at least one passage which provides communication between the first cavity and the second cavity.

Abstract: An active clearance control system utilizes a working fluid stream to control radial thermal growth and thereby a clearance between turbine blades and a corresponding shroud of a gas turbine engine. Conduits disposed about a turbine case and proximate to pads defined within the turbine case include a flow surface parallel to the pads. The pads are an area of increased thickness in the turbine case that receives impingement flow from the conduits. Grooves within the pads further increase impingement cooling flow effectiveness. The increased thickness of the pads provides the thermal mass desired to effect thermal expansion and contraction responsive to the cooling airflow.

Abstract: In a pump arrangement, each adjusting screw has first and second end portions, a third intermediate raised portion, and a fourth portion to allow each adjusting screw to be rotated clockwise/counterclockwise. Each first end portion passes through a suction liner aperture so left-handed threads couple to a respective left-handed seal ring aperture. Each second portion passes through a suction half casing aperture so the fourth portion can be accessed to allow clockwise/counterclockwise rotation of each adjusting screw. Each adjusting screw rotates clockwise and moves until the third portion pushes against the suction half casing, so the screw stops moving and the seal ring moves away from the suction liner as the screw is rotated clockwise, or rotates counterclockwise and moves until the third portion pushes against the suction liner, so the screw stops moving and the seal ring moves towards the suction liner as the screw is rotated counterclockwise.

Abstract: A method is disclosed for injecting water into a multistage axial compressor of a gas turbine. With low equipment cost, a significant power enhancement can be achieved, even under changing boundary conditions, by water being injected at a plurality of points along the axial compressor, and by the injected water mass flow being controlled at the individual injection points in accordance with ambient conditions and operating parameters of the gas turbine in such a way that an evened-out loading in the individual stages of the axial compressor can be created.

Abstract: Certain embodiments of the invention may include systems methods, and apparatus for sealing a bucket dovetail in a turbine. According to an example embodiment of the invention, a method is provided for sealing a gap between a bucket dovetail and a rotor wheel slot. The method can include providing a bucket tab associated with a bucket dovetail, wherein the bucket tab is configured to accept a seal tab; configuring the bucket tab and the seal tab to engage at least one dimension upon insertion of the seal tab into the bucket tab; and sealing a gap between the bucket dovetail and a rotor wheel slot with the seal tab; wherein at least a portion of the seal tab changes as a function of temperature for further sealing gap between the bucket dovetail and the rotor wheel slot.

Abstract: A fan module includes a cooling fan, a supporting rack, and a number of fasteners sandwiched between the cooling fan and the supporting rack. The fasteners are made of vibration-resistant material. The supporting rack includes two opposite supporting walls. An installing portion protrudes out from a top of each supporting plate. Each fastener is sandwiched between the cooling fan and the corresponding installing portion. An extension portion extends from each fastener to resist against an outside surface of the cooling fan.

Abstract: A blower includes an electric motor having a shaft, a housing having an inlet and outlet between which is defined a gas flow path, the outlet structured to direct gas exiting the blower in an axial first direction, a first impeller attached to the shaft and adapted to accelerate air tangentially and direct it radially outward, a stationary portion, and a shield. The stationary portion includes a first stator vane structure defining a plurality of stator vane leading edges and a stator vane outer radial edge. The first stator vane structure is arranged to direct gas flow along a curved path that directs flow at an inner end thereof in a radially inward direction. The shield has an outer edge extending radially beyond the outer radial edge of the first stator vane structure and is adapted to isolate the stator vane leading edges from an impeller blade pressure pulse.

Abstract: A portable blower has a casing (2) having an opening portion (24) open in a suction face (2a) of the casing (2) facing the installation surface with an inclination and a discharge port (7) open in a top face (2d) of the casing (2); an air passage (8) inside the casing (2), connecting between the opening portion (24) and the discharge port (7); and a blower fan (17) inside the air passage (8). As the blower fan (17) is operated, outside air is introduced into the air passage (8) through an intake port (6) formed by part or the whole of the opening portion (24) to pass through the blower fan (17) and then be sent out through the discharge port (7). The opening portion (24) and the discharge port (7) communicate with each other along the inner side of the suction face (2a) outside the blower fan (17).

Abstract: Gas turbine engine systems involving tip fans are provided. In this regard, a representative gas turbine engine system includes: a multi-stage fan having a first rotatable set of blades and a second counter-rotatable set of blades, the second rotatable set of blades defining an inner fan and a tip fan and being located downstream of the first set of rotatable blades; and an epicyclic differential gear assembly operative to receive a torque input and differentially apply the torque input to the first set of blades and the second set of blades.

Abstract: In one embodiment, a system includes a seal having a first sealing end portion, a second sealing end portion, and an intermediate portion between the first and second sealing end portions, wherein the seal has at least one metering hole configured to control a leakage flow across the seal.

Abstract: A transmission system for an adjusting device, of a waste gate of an exhaust gas turbocharger, including a four bar coupling mechanism, a driver arm operatively connected to a drive via a transmission, an output arm and a coupler, operatively connecting the driver and output arms, the transmission having a driving gear, assigned to the drive, and a driven gear, assigned to the driver arm and interacting with the driving gear having a rolling curve radius, which changes over the circumference, the driven gear having a rolling curve radius running complementary to the former. The rolling curve radii is selected in an angle of rotation range about the extended position of the coupling to form at least in regions a first transmission ratio and outside the angle of rotation range to is form at least a second transmission ratio larger than the first ratio. Also described is an exhaust gas turbocharger.