Abstract: A cast slab having a pair of wide, substantially planar, and opposite side faces and a pair of narrow opposite edge faces, is ground by first orienting the slab with the side and edge faces vertical. Then grinding tools are pressed oppositely and horizontally against opposite wide faces, with the grinders throwing the chips downward. The tools and slab are relatively vertically displaced for the grinding.

Abstract: A disc sander includes a housing having an operation platform for holding a workpiece on a work surface at the operation platform for sanding, a sanding mechanism pivotally mounted on the housing and having a sanding surface for sanding the workpiece, and an angle adjustment unit set between the housing and the sanding mechanism and including two swing plates disposed at two opposite lateral sides relative to the housing and respectively connected to the sanding mechanism so that the sanding mechanism is biasable with the swing plates relative to the housing to change the angle between the work surface and the sanding surface.

Abstract: The present invention facilitates with high accuracy the adjustment of a minute angle degree, and also is capable of sufficiently securing the rigidity of the whole device after the adjustment and provides good operability, accuracy, and rigidity. Provided are a workpiece attaching body having a workpiece attaching surface and a rotating body rotatably supporting the workpiece attaching body.

Abstract: To facilitate with high accuracy adjustment of a minute angle degree and also to sufficiently secure the rigidity of a whole device after the adjustment.

Abstract: A precision machine tool, comprising a table which is suspended so that it is substantially a swivelable table; a driving element for driving a tood during machining of a part; and a device for orienting said table, said orienting device including at least three orienting elements, each including a plurality of rolling bodies which are brought successively into a contact with a surface of said table on which work pieces to be machined are located.

Abstract: A machining method for manufacturing structures includes a preprocessing step (11), a clamping step (13), a machining step (15) and an extracting step (19), which are performed in that order. The preprocessing step is performed to get workpieces (20a, 20b, 20c and 20d) for forming a plurality of structures. In the clamping step, fixedly clamping a plurality of workpieces on a multiple workpiece mounting device (30) and rotatably installing the multiple workpiece mounting device on machining equipment (50). In the machining step, machining the workpieces by the machining equipment to get structured workpieces. In the extracting step, extracting a plurality of structures from the structured workpiece. The invention is also related to an above-described multiple workpiece mounting device comprising a plurality of platforms (38) and a rotation axis (L1).

Abstract: An apparatus is provided for use in preparing the inner surface of a tire for the application of a patch so that, for example, the tire may be equipped with various electronic devices. The apparatus facilitates improved operation of a grinder or buffer so that the grinding depth and surface area prepared for patch application can be more precisely controlled. Adjustment for different tires sizes and models is provided.

Abstract: An apparatus provided for supporting at least one component in a grit blasting process comprises a base and a platform table assembly mounted to the base. The platform table assembly includes a platform table therein which is rotatable and angularly adjustable with respect to the base. The platform table includes a component holding device for releasably holding the at least one component in position during the grit blasting process.

Abstract: A tubular workpiece notching machine usable for general grinding operations has a worktable (1) whose base plate (10) is pivotally mounted to the frame (6) of the notching machine around a pivotal orthogonal axis (Y—Y) in such a manner that the worktable (1) is movable from a first working position in which the machine vice (2) co-operates with the shaping pulley (3) in recessing ends of tubular workpiece by grinding, to a second working position in which the shaping pulley (3) is used for generally grinding a workpiece. Connecting elements are provided for removably anchoring the base plate (10) of the worktable (1) to the frame (6) in the first working position.

Abstract: A chucking device, in particular for workpieces that are to be machined on more than one side, has a workpiece carrier with at least one turret, arranged to receive workpieces, that is supported rotatably about an axis of rotation on the workpiece carrier, A positive-engagement locking device is associated with the turret, on the workpiece carrier, by which locking device the turret can be locked positionally precisely in a predetermined rotary angle position relative to the workpiece carrier. The locking device has at least three locking parts disposed coaxially to one another, which on the plane faces facing one another each carry pairs of cooperating locking means that can be brought into and out of engagement with one another by means of an axial relative motion of the locking parts.

Abstract: An about vertical tile cutting saw having a structure that orientates the ceramic tile for cutting in an about vertical plane and wherein the saw blade cutting means is disposed rearward of the ceramic tile to the cut, thereby allowing for use of the tile saw in close quarters.

Abstract: A chucking device, in particular for workpieces that are to be machined on more than one side, has a workpiece carrier with at least one turret, arranged to receive workpieces, that is supported rotatably about an axis of rotation on the workpiece carrier, A positive-engagement locking device is associated with the turret, on the workpiece carrier, by which locking device the turret can be locked positionally precisely in a predetermined rotary angle position relative to the workpiece carrier. The locking device has at least three locking parts disposed coaxially to one another, which on the plane faces facing one another each carry pairs of cooperating locking means that can be brought into and out of engagement with one another by means of an axial relative motion of the locking parts.

Abstract: A machine for the versatile removal of material for shaping an object. The machine includes a platform that provides support for three substantially horizontal and parallel plates. The uppermost plate or “table top” is height-adjustable and provides a working surface. The table top has a plurality of guide pins projecting downwardly therefrom and a centrally located aperture. The adjustable table top is supported by at least one height adjustment means such as a scissor jack interposed between the adjustable table top and an underlying support plate. The support plate is rigidly attached to the platform and has an aperture therein which underlies the aperture in the table top. A motor having a drive shaft with a belt drive thereon is attached to a motor mounting plate disposed below, and adjustably attached to, the overlying support plate.

Abstract: An elongated and cross-section polygonal work piece carrier (1) has at least two clamping surfaces (2) extending parallel to its longitudinal axis (3). It is retained in bearing (5, 9) at least at one end, to be rotatable about its longitudinal axis over 360°. Each of the clamping surfaces (2) is supplied with at least two rotatable work piece holding tables (11) located in a row adjacent each other. The holding tables (11) are coupled by gears (25, 26, 33) with each other and with a common drive gear (35) in such a manner that all tables, in dependence on the rotation of the work piece carrier (1) about its longitudinal axis (3), will rotate over its respective rotation axis (12) about a predetermined angle, depending on the angle of rotation of the work piece carrier; an interrogation device is provided to interrogate whether all rotated tables are in predetermined, locked angular positions.

Abstract: A ceramic tile cutter is provided with at least one auxiliary base which is fastened pivotally with one longitudinal side of a base of the ceramic tile cutter such that the upper surface of the auxiliary base is lower than the crest of a ridged portion of the base. The auxiliary base can be swiveled to give an added width to the base so as to facilitate the locating of an oversize ceramic tile on the base of the ceramic tile cutter.

Abstract: A working table includes a lateral beam having one end for securing to a drilling machine and having a longitudinal channel for slidably engaging with a bolt which is extended downward from a block. A nut is threadedly engaged with the bolt so as to secure the block to the lateral beam. A table is rotatably secured to the block by a screw. The table and the block are movable along the channel and are rotatable relative to the lateral beam when the nut is unthreaded relative to the bolt. The table may be rotated relative to the block when the screw is unthreaded relative to the block.

Abstract: In a method of grinding ball grooves formed in a workpiece with a grind stone, the grind stone is fed in a direction of a longitudinal axis of the ball groove in a condition in which an axis of rotation of the grind stone is inclined in the direction of the longitudinal axis of the ball groove relative to a plane which perpendicularly crosses the longitudinal axis of the ball groove. An apparatus for grinding the ball groove has an apparatus bed which is movable in a direction of a longitudinal axis of the ball groove relative to a work holder for holding a workpiece, a supporting bed which is provided on the apparatus bed, a grind stone holder which rotatably mounts on a front end thereof a grind stone for grinding the ball groove, and an electric motor and a gear mechanism for rotating the grind stone. The grind stone holder, the electric motor and the gear mechanism are mounted on the supporting bed.

Abstract: An polishing apparatus which can effectively polish a bottom wall of a wafer in a notch portion is disclosed. The apparatus includes: a table for supporting the wafer thereon; a rotary buff having a thickness so that the periphery thereof can enter the notch portion of the wafer, and is rotated around an axis which is parallel with a plane of the surface of the wafer supported on the table; a first rotating member such as a motor for rotating the rotary buff; a linkage for supporting the rotary buff; an adjusting member such as a cylinder device for adjusting the pressure applied to the bottom wall of the wafer in the notch portion from the rotary buff; and a second rotating member for turning the table around a predetermined axis which is approximately parallel with the rotary axis of the rotary buff so that the applied pressure from the rotary buff acts on the bottom wall of the wafer in the notch portion in a direction approximately perpendicular to the surface of the bottom wall.