Abstract: A lapping tool has an elongate shank mechanically coupled to a platform, having a generally planar working surface, by a universal joint comprising a ball and socket. A cavity is provided for entrapping grinding paste. Normally, the parts are made of electrically conductive materials so that current can be passed from the shank via the working surface to surface of a workpiece that is to be polished.

Abstract: A universal grinding machine having a plurality of workpiece holders, each of which can be moved independently of each other or jointly, by a separate slide, in the longitudinal direction of the workpiece on a slide guide disposed on the machine bed, or which can be fixed independently of each other or jointly to the machine bed.

Abstract: A machine is provided to make possible many precision operations on wood and some metals on a miniature scale for miniaturists, modelers and hobbyists. Said machine, as seen in FIG. 25 comprises a base,200, an x-y table,212,224, a y only table,212, a stationary table,212 (when locked) an elevator 225 or z axis mechanism and a modular over-arm assembly 250 for accurately positioning and holding standard hand tools such as a hand drill, hand grinder, moto-tool, flexible shaft type tools and heat gun to perform operations otherwise impossible with such tools.

Abstract: For two-side processing of optical lenses, the invention provides that blanks to be used for each lens body (7) comprise a chucking extension (18) whereby a single machine is sufficient for implementing the procedure. In addition to workpiece spindles (1, 2) as well as tool spindles (4, 5) with coarse tools (8) and finishing tools (9), the machine also includes an unloading device (10) and a loading device (13) which in successive interacting operations take the lens body (7) when processed on one side and at the circumference from a chucking tool (12) of the tool spindle (1) and turn it round for centered insertion in its inverted position into a chucking tool (15) of the tool spindle (2) for processing on the other side. The workpiece spindles (1, 2) may be mounted parallel to each other on a horizontally displaceable and vertically adjustable feed slide (3). A feed carriage (6) may displace and slew the tool spindles (4, 5) together with the unloading device (10) around a horizontal B axis.

Abstract: A glass-plate working apparatus 1 includes: a supporting device 7 for supporting a glass plate 6 from a glass plate carrying-in section 2; a main cutter head device 9 for forming a main cut line 8 for bend-breaking on the glass plate 6 supported by the supporting device 7; a maincutter-head moving device 10 for relatively moving the main cutter head device 9; bend-breaking head devices 13 and 14 for forming edge cut lines 11 for bend-breaking on the glass plate 6 and for pressing the glass plate 6 to bend-break the glass plate 6; and bend-breaking head moving devices 15 and 16 for moving the bend-breaking head devices 13 and 14.

Abstract: The machine comprises at least one workpiece-bearing device is provided, upon which a tile or a stack thereof can be placed and blocked. The workpiece-bearing device is revolvable and can be positioned at any angle about a fixed axis. At least one drive head is fitted with at least one rotating grinding wheel, which operates on one side of the tile or on same sides of tiles forming the stack. The workpiece-bearing device and the drive head are constrained to a fixed frame in such a way that a plane of work motion of the at least one grinding wheel is disposed parallel to an axis of rotation of the workpiece-bearing device.

Abstract: An apparatus for machining glass has a housing forming an upwardly open water-holding reservoir, a horizontal screen forming a support surface and covering the housing, a drive motor in the housing having an output shaft extending upward through the screen, and a drive wheel on the output shaft above the screen. A mount on the housing at the screen is releasably secured to a machine base that carries a glass-machining tool releasably connected to the wheel.

Abstract: A powered grinding tool (10) comprising a casing (16) in which is an electric motor (40) which drives a shaft (39) on which is carried a grinding wheel (20) at a work station. The tool casing has undercut slots (24) at opposite sides of its front face for automatic vertical sliding engagement with a selected one of a number of adapters (11-13), each adapter providing a location which, in use, is disposed relative to the grinding wheel so that there is correct positioning between part of an implement that said location and the grinding wheel, for said part to be worked by the wheel. The casing can have the slots (24) on at least one other of its faces to store adapters when they are not in use.

Abstract: An apparatus for grinding a blade used in, for example, a glass or hedge trimmer including grinder support and a blade mount provided close to each other. The grinder support holds a grinder, which has a round grindstone, in such a manner that the grinding surface of the grindstone can be oriented not only horizontally and vertically but also in an inclined direction so as to meet the action angle of the tooth of the blade; and the blade mount includes a horizontal surface section and a sloped surface section so that the trimmer blade is place thereon when ground by the grindstone held on the grinder support.

Abstract: The precision cut off machine (10) includes a spindle shaft (24) rotatably journaled on a platform (12). A motor (30) drives the spindle (24) through a cogged belt (36) trained around cogged pulleys (38 and 40). A flexible abrasive cutting disk (64) is attached to the end of the spindle opposite the cogged pulley 40. A fixed workpiece support (70) with a disk slot (74) is pivotally attached to the platform (12) by a hinge assembly (72) and locked in place with the radially outer edge of the disk (64) in the slot. A pump (88) supplies coolant to a wand (92) for cooling a workpiece during cutting. A workpiece is placed on the support (70) and manually advanced for cutting. A fence assembly (116) can be employed to set the length of workpiece. To cut flagged and headed workpieces, a step riser assembly (154) can be used. The fence assembly (116) can be used with the riser (154). A v-block assembly (170 with an adjustable stop (210) can be used on the support (70).

Abstract: An apparatus and a method for performing working operations, such as grinding, polishing and burnishing, on a workpiece. A first and a second working tool are disposed for working movement in, respectively a first and second axis in a first plane and a second plane. The first and second working tools are operated at right angles to one another. The working tools perform work on the workpiece sequentially such that only one of the working tools is in contact with the workpiece at a given time. In this manner, any residual stresses in the workpiece generated by either one of the working tools will be cancelled out by the other one of the working tools. In this fashion, internal stresses in the workpiece are relieved for preventing any flow or deformation of the material in the workpiece during operations thereon.