The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

A tool mounting track embedded in the surface of a work table is formed. The track includes an elongated metal bar with a cross-section including an upwardly opening channel defined between inwardly directed flanges and outwardly extending side grooves immediately below the flanges forming an elongated inverted T shaped track, all of the upwardly opening channel, the inwardly directed flanges, and the side grooves extending substantially the length of the elongated metal bar. At least one open area of the elongated metal bar where a portion of the inwardly directed flanges is omitted to provide an entry for a downwardly extending rectangular tool foot. The elongated metal bar is positioned between edges of the work table and spaced therefrom.

A tool mounting track embedded in the surface of a work table is formed. The track includes an elongated metal bar with a cross-section including an upwardly opening channel defined between inwardly directed flanges and outwardly extending side grooves immediately below the flanges forming an elongated inverted T shaped track, all of the upwardly opening channel, the inwardly directed flanges, and the side grooves extending substantially the length of the elongated metal bar. At least one open area of the elongated metal bar where a portion of the inwardly directed flanges is omitted to provide an entry for a downwardly extending rectangular tool foot. The elongated metal bar is positioned between edges of the work table and spaced therefrom.

A hydrostatic linear guideway includes a rail, a slider coupled to the rail, and two load blocks disposed between the rail and the slider. A load portion of each load block is spaced from the groove wall of an outer groove of the rail and has an oil chamber facing toward the groove wall of one respective outer groove of the rail, such that an oil film is formed between the rail and each load block. A bearing portion of each load block is abutted against the groove wall of an inner groove of the slider so that the two load blocks are moved synchronously with the slider. Thus, the hydrostatic linear guideway of the present invention has the oil chamber defined in each load block and does not require additional processing of the slider, achieving the purpose of reducing the difficulty of the manufacturing process.

A hydrostatic linear guideway includes a rail, a slider coupled to the rail, and two load blocks disposed between the rail and the slider. A load portion of each load block is spaced from the groove wall of an outer groove of the rail and has an oil chamber facing toward the groove wall of one respective outer groove of the rail, such that an oil film is formed between the rail and each load block. A bearing portion of each load block is abutted against the groove wall of an inner groove of the slider so that the two load blocks are moved synchronously with the slider. Thus, the hydrostatic linear guideway of the present invention has the oil chamber defined in each load block and does not require additional processing of the slider, achieving the purpose of reducing the difficulty of the manufacturing process.

A surface support for constructing a stained glass design having a flat central surface (12), surface frames (14) bounding all sides of the flat central surface (12), a stationery edge boundary (15) securely mounted on one of the surface frames (14), preferably the frame closest to the artist, 2 side adjustable members (18) mounted in a manner as to be slideable toward or away from one another, and capable of sliding over said flat central surface (12) and the surface frames 14, and a slideable boundary support (24) positioned to slide on side adjustable members (18) toward or away from the stationary edge boundary (15) and slide over the flat central surface (12).

A surface support for constructing a stained glass design having a flat central surface (12), surface frames (14) bounding all sides of the flat central surface (12), a stationery edge boundary (15) securely mounted on one of the surface frames (14), preferably the frame closest to the artist, 2 side adjustable members (18) mounted in a manner as to be slideable toward or away from one another, and capable of sliding over said flat central surface (12) and the surface frames 14, and a slideable boundary support (24) positioned to slide on side adjustable members (18) toward or away from the stationary edge boundary (15) and slide over the flat central surface (12).

An adjustable linear motion carriage assembly is configured to ride on a rail (34, 220) with generally parallel opposing faces in a linear motion of travel along the central axis of the rail. The carriage assembly includes at least one carriage member (32, 140, 160, 261) comprising a frame (40, 150, 170, 270) supporting a plurality of bearings (62). The carriage member can be used singularly or assembled together to provide control over desired degrees of freedom of the carriage assembly. The individual carriage member frames can flex by elastic displacement near the bearing location (122, 142, 162) to accommodate rails with minor variations in width.

An adjustable linear motion carriage assembly is configured to ride on a rail (34, 220) with generally parallel opposing faces in a linear motion of travel along the central axis of the rail. The carriage assembly includes at least one carriage member (32, 140, 160, 261) comprising a frame (40, 150, 170, 270) supporting a plurality of bearings (62). The carriage member can be used singularly or assembled together to provide control over desired degrees of freedom of the carriage assembly. The individual carriage member frames can flex by elastic displacement near the bearing location (122, 142, 162) to accommodate rails with minor variations in width.