Abstract: A system of polishing a concave surface of an external piece for a timepiece, including a securing device including a support that carries the piece, and a grinding device including an abrasive mechanism rotatably mounted along a first axis and configured to polish the piece along a first curvature. The securing device further includes a moving mechanism of the support so that the support imparts a back-and-forth motion along a second axis and a contact surface of the abrasive mechanism is curved to polish the piece along a second curvature in addition to the first curvature. The system can be applied to the field of crystals for a timepiece.

Abstract: A clamp apparatus includes a pair of first and second clamp arms. A driving force transmission mechanism transmits a driving force of a drive unit, whereby the first clamp arm is operated to rotate via a link arm, while simultaneously, the second clamp arm is rotated, and after being rotated through a predetermined angle, under moving action of a roller, which is inserted into a cam groove of a link plate, rotation of the second clamp arm is stopped and maintained in advance with respect to the first clamp arm. Consequently, after positioning of a workpiece has been carried out by the second clamp arm, rotation of which is stopped, the first clamp arm continues to be rotated, whereby the workpiece is clamped.

Abstract: A support accessory is disclosed for a hand tool, such as a grinder or polisher. The support accessory is configured to be detachably fastened to the hand tool. The support accessory includes a frame with a longitudinal beam configured to stabilize the hand tool front-to-back when the hand tool is fastened to the support accessory, as well as a trunnion rotatably coupled to the frame and configured to stabilize the hand tool side-to-side when the hand tool is fastened to the support accessory. The support accessory is also configured to support the hand tool in a position that is substantially parallel to a surface of a workpiece during use.

Abstract: A pin clamp for clamping a workpiece includes a housing and a locating pin extending through the housing and having a longitudinal axis. The locating pin is sized to be positioned within an opening of the workpiece. A finger is positioned adjacent to the locating pin and movable in a transverse direction relative to the longitudinal axis to retain the workpiece on the locating pin. A linear actuator is configured to move the locating pin in opposite directions along the longitudinal axis. A locking arrangement is carried by the housing. A sequence cam is connected with the linear actuator in a manner allowing axial movement of the linear actuator to be converted into transverse movement of the sequence cam. The sequence cam includes an engagement surface which engages the locking arrangement to lock the locating pin and the finger against the workpiece upon retraction of the linear actuator.

Abstract: A pin clamp for clamping a workpiece includes a housing having a longitudinal axis and a locating pin extending through the housing. The locating pin is sized to be positioned within an opening of the workpiece. A finger is positioned adjacent to the locating pin and movable in a transverse direction relative to the longitudinal axis to retain the workpiece on the locating pin. An exterior driving linkage is configured to move the locating pin in opposite directions along the longitudinal axis. A locking arrangement is carried by the housing. A sequence cam is connected with the exterior driving linkage thereby allowing axial movement of the exterior driving linkage to be converted into transverse movement of the sequence cam. The sequence cam includes an engagement surface which engages the locking arrangement to lock the locating pin and the finger against the workpiece upon retraction of the exterior driving linkage.

Abstract: A combined working machine includes a base frame having a sloped surface, a first headstock installed on the sloped surface, a first main spindle rotatably provided on the first headstock, a second headstock installed on the sloped surface oppositely to the first headstock, a second main spindle provided on the second headstock, a tool head installed on the sloped surface on one side of the first headstock, a tool head provided in the tool head and having a tool attachment base to which a cutting tool is attached, a grinding head installed on the sloped surface on another side of the first headstock, and a grinding head body provided in the grinding head and supports a rotatable rotary shaft. A grinding wheel for grinding is exchangeably attached to the rotary shaft of the grinding head. According to the combined working machine, cutting and grinding can be carried out concurrently.

Abstract: A blind rivet fastening tool in which the jaws are open at the original position, and at a return step in which the tool is returned to the original position after a blind rivet is fastened the fastened blind rivet is pushed out. The tool comprises a hollow nose housing for housing a mandrel; a nose piece provided at a front end of the nose housing and having an opening; a floating piece provided at a front end of the inside of the nose piece; the floating piece having a though hole in which the mandrel is inserted; a jaw guide provided at the back side of floating piece and having an inside surface which has a smaller diameter toward the front end thereof; jaws provided inside the jaw guide for holding the mandrel; a pulling head and a jaw pusher for respectively pulling back and pushing forward the jaws.

Abstract: Provided is a shot peening device with which recovered projection material and foreign bodies can be more precisely separated while inhibiting an increase in the size of the device. The shot peening device is provided with: a projector which projects projection material onto a workpiece (W); recovery mechanisms which recover the projection material projected by the projector; and a wind power sorting mechanism in which recovered projection material is allowed to fall freely while an upward air current is applied to the recovered projection material, and foreign bodies included in the recovered projection material are separated from the recovered projection material.

Abstract: The present invention relates to lining carrier for a sanding pad lining, in particular for use with a sanding pad for pressing sanding surfaces against workplaces in segment-belt and wide-belt sanding machines. Here, the lining carrier has at least one recess, in particular a groove.

Abstract: A powered landing gear includes a housing member and a telescoping leg member connected with the housing member, an internal gear assembly located within the housing member is configured to extend and retract the leg member. A shaft extends into the housing member and is connected with the internal gear assembly, where the internal gear assembly includes a ring gear arranged to rotate about an axis that is transverse to the telescopic orientation of the leg member with the internal gear assembly configured to operate in a high speed setting and a low speed setting, and with the internal gear assembly automatically shifting from the high speed setting to the low speed setting. A drive system is attached to the housing member and includes a drive motor and a drive gear, with the drive motor configured to operatively drive the shaft via the drive gear.

Abstract: A clamp includes a fixed jaw assembly which has a fixed jaw and a movable jaw assembly which has a movable jaw. The movable jaw assembly is movable with respect to said fixed jaw assembly so that the movable jaw moves with respect to the fixed jaw. A handle is rotatably connected to the fixed jaw assembly, the handle includes a cam which moves the movable jaw assembly. When the handle is placed in a first rotational position the jaws are open and the movable jaw is disposed a first distance from the fixed jaw. When the handle is placed in a second rotational position the jaws are closed and the movable jaw is disposed a second distance from the fixed jaw, the second distance being less than the first distance. An adjustment is provided for changing both the first and second distances.

Abstract: A transition piece assembling apparatus according to the disclosure includes a pair of rails which is provided to be in the direction parallel with an axis of a combustor transition piece, and to be spaced at intervals and in a plane perpendicular to the axis of a combustor transition piece, support portions which are connected to the combustor transition piece and support the member to be movable in longitudinal directions of the rails, a trapezoidal screw which is disposed in parallel with the axis of the combustor transition piece between the pair of rails, a female screw block which is threaded onto the trapezoidal screw, and a sliding member which is provided between the female screw block and the combustor transition piece and connects the female screw block and the combustor transition piece to be movable relative to each other in a plane perpendicular to a female screw axis.

Abstract: An expandable car jack including a base with a first base extension member and a second extension member rotatably, removably, and directly coupled to one another, the first and second base extension members operably configured to rotate with respect to one another to define a planar lower support surface forming an x-shape or a substantially perpendicular configuration. The expandable car jack may also include a plurality of hinged members supported by the base, wherein the plurality of hinged members define a lifting surface and are coupled together with a screw, the screw operably configured to rotate, expand and contract a width separating the plurality of hinged members, and place the lifting surface at a plurality of raised height positions.

Abstract: The invention provides a double-side polishing method including first polishing at a high polishing rate, second polishing at a low polishing rate, dividing a straight line extending between the outermost circumferences of the wafer through the center into prescribed sections, and optically measuring a cross-sectional shape of the sections; applying a weight predetermined for each section to the cross-sectional shape to quantify flatness of each section; and determining polishing conditions of the first and second polishing in subsequent polishing on a basis of the quantified flatness, wherein a beam diameter of a measurement apparatus used to measure the cross-sectional shape of outermost sections is smaller than that used to measure the cross-sectional shape of the other section. The method can measure the shape of the wafer up to its outermost circumference with high precision without reducing productivity, and improve the flatness of the entire wafer including its outermost circumference.

Abstract: A pneumatically powered fastener installation tool (2) comprising floating pull (24) and return (26) pistons which are free to move axially within the main channel (22), thereby providing compliance when transmitting pressure from a double-acting pneumatic piston (16) and intensifier rod (18) to a head piston (6) thereby to install a fastener such as a lockbolt and preventing the generation of a vacuum condition on oil loss during the pull stroke of the tool.

Abstract: A support device (1) for supporting motor vehicles, with two plate-like bodies, wherein one of these plate-like bodies is a base plate (2) and the other of these plate-like bodies is a support plate (4) capable of being laid on this base plate (2), wherein the base plate (2) has a first even surface (2a) which is opposite a second even surface (4a) of the support plate (4) and wherein the support plate (4) has a support face (4b) for supporting the motor vehicle. According to the invention the support device (1) has a separation device (6, 62, 32, 34) which at least for a time generates a force which acts between the base plate (2) and the support plate (4) and which holds the support plate (4) in a hovering state above the base plate (2), in which hovering state, in particular, the first even surface (2a) and the second even surface (4a) do not touch each other.

Abstract: A dressing apparatus capable of bringing an overall dressing surface of a dresser into uniform sliding contact with a polishing surface of a polishing pad and capable of uniformly dressing the overall polishing surface of the polishing pad is disclosed. The dressing apparatus includes a dresser configured to rub against a polishing surface to dress the polishing surface that is used for polishing a substrate, a dresser shaft that applies a load to the dresser, at least one load-applying device configured to apply a downward load to a part of a peripheral portion of the dresser, and an operation controller configured to control operation of the load-applying device.

Abstract: A slider bar extender to removably connect one or more slider bars to a processing machine or tool is disclosed. In illustrated embodiments, the extender is coupled to a holder structure through a tongue and groove connection. In illustrated embodiments, the tongue is formed on the holder structure and the groove is formed on the extender. In illustrated embodiments, the extender includes a plurality of reduced thickness strips. The reduced thickness strips are orientated lengthwise to control or transfer bending to one or more bars connected to a proximal edge surface of the extender.

Abstract: Embodiments of a polishing apparatus are provided. The polishing apparatus includes a polishing pad having a polishing surface. The polishing apparatus also includes a dispensing device including a dispensing arm located over the polishing pad and a liquid nozzle disposed on the dispensing arm. The liquid nozzle is configured to dispense washing liquid onto the polishing surface along a dispensing direction. The dispensing direction has an acute angle with respect to the polishing surface.

Abstract: A cutting worktable includes a worktable body have a distal side located away from a cutting tool and a proximal side located adjacent to the cutting tool. The cutting worktable further includes a support frame assembly disposed at the proximal side of the worktable body and used to lift an object to be cut so that the object to be cut is placed on a top surface of the worktable body in an inclined posture. The support frame assembly includes a support roller for contacting the object to be cut and the worktable body is provided with a limiting structure for abutting against the object to be cut and limiting its position. The object to be cut can thus be inclined via the support frame assembly and fixed by the limiting structure. The limiting structure can be in the form of a plurality of placement grooves to achieve placement of the object to be cut at different angles relative to the cutting tool and worktable.