Official Gazette of the United States Patent Office Volume 121, No. 1

Official Gazette of the United States Patent Office Volume 121, No. 1

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Description

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ...supply, said grasping-handle and stem beiug adapted to hold the throttle-valve in an unseated position when the tool is held to the work. 28. In a fluid-controlled impact-tool, a cylinder and piston, a valve-block having a controlling-valve therein, a retaining-head for the valve-block having a longitudinal bore of different diameters, the smaller diameter being at the rear end of the head, a throttle-valve located in the larger bore and provided with a rearwardly-projecting stem of smaller diameter corresponding to the bore at the rear of the head and rotatably mounted therein, a passage in said stem through which the motive fluid is supplied to the tool, a grasping handle secured to said stem having a passage communicating with said passage in the stem and adapted to be connected to a source of Ruid-pressure supply, means for holding said cylinder, valve-block and retaining-head in assembled position, and means whereby said cylinder may be rotated with relation to said grasping-handle and source of fluid-pressure supply. 29. In a fluid-controlled impact-tool, a piston-chamber and piston, a valve for controlling the movements of said piston, means controlled by said piston for actuating said valve, a valve-block having a port therein controlled by said valve and connected by a passage to one end of the piston-chamber to admit and exhaust the motive fluid to and from one side of the piston, a passage leading from the opposite end of the piston-chamber and provided with two ports opening into the valve-block, one of said ports being controlled by said valve to admit and exhaust the motive fluid to and from said last-mentioned end of the piston-chamber and the other of said ports being controlled by said valve to provide additional means...show more

Product details

  • Paperback | 674 pages
  • 189 x 246 x 34mm | 1,184g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236850645
  • 9781236850645