Improvements in Machinery, or Apparatus suitable for Boring, Facing, Planing and Grooving Torpedo Tubes or similar Work.

摘要

13,984. Hulse & Co. and Bates, H. Aug. 3. Boring; planing.-Relates to a machine for boring, facing, planing, and grooving torpedo tubes or the like. A standard has two verticallymovable balanced saddles 2, with cross-slides 5 to which the work is bolted. The boring-bar 11 is mounted at its lower end in a base 6, and at its upper end in a slide 7, movable by a screw and band-wheel. The cap of the slide bearing is removed, and the slide withdrawn clear of the bar to allow the work to be inserted. The bar is rotated by bevel and worm gearing 19 from a cone pulley 13, and carries a cutter head 12, traversed along the bar by a screw 26 driven by epicyclic gearing (not shown) removably mounted at the upper end of the bar and partially supported by a pillar 27. For facing, a suitable tool arm is clamped on the bar. For planing and grooving, the epicyclic gearing is removed and the screw 26 rapidly driven by bevel gearing 42, 40 from a shaft 34, the bar being rigidly held by locking the wormwheel 19 to a lug on the base. The shaft 34 is piovided with belt pulleys, and an ordinary form of quick-speed reversing-mechanism. The rocking of a shaft 52 to shift the belt fork 55 is communicated to a vertical shaft 62 through a pawl and ratchet-wheel 61. One or both of the screws 68, 69 for operating the slides 5 can be clutched to the shaft 62, which can also be operated by a handwheel (not shown) at the top. Each saddle is provided with a handle, worm gearing 74, and a rotatable nut 75 engaging a fixed screw 76, so that the saddles may be moved vertically.