The Law of Patents as Illustrated by Leading Cases; With Discussion of Principles, Annotations, Important Statutes and Rules Volume 2

The Law of Patents as Illustrated by Leading Cases; With Discussion of Principles, Annotations, Important Statutes and Rules Volume 2

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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. 1914 edition. Excerpt: ...or solenoid, and a shunt-magnet O." solenoid adapted to move said frame, said moving frame suspended on spring-bars." In the above figures selected from '-he five figures of the patent the carbon tubes A2 are shown passing through the thimble'A' on the frame. D4 is the electro-magnet or solenoid carried by a moving frame D2. D8 is a pivoted armature for the magnet or solenoid to which is connected by the links D9 and carbon clamp D1, which surrounds the carbon rod, and as its angle is changed clamps or releases the carbon rod. A trip D11 engages the lower end of a pivoted variable stop E. From the end of the armature D8 extends a link F to a piston F' in a dash-pot F2. G is a derived or short circuit magnet or solenoid connected with the poles D5 and D6 by connectors G' and G2. It contains a movable core G3 pivoted to a lever G4, and is governed by a dash-pot and other connections G5 and G6, etc. The various additional details are intended to supply and regulate the current to the two magnets. The specification briefly concludes as follows: "The entire device consisting of the parallel moving frame supported on elastic bars and containing the main-circuit electro-magnet or solenoid and carbon-rod clamp is described as a carbon-separating device, since its office is to seize and separate the carbons in the first instance. The entire frame is then bodily moved by means of the derived-circuit electro-magnet or solenoid for the purpose of feeding the carbons." It will be observed that the first two claims of the Sperry patent correspond substantially to the claims of the Scribner patent and that in both the relation of the magnet which operates the carbon-rod clamps and the shunt magnet moving the...show more

Product details

  • Paperback | 444 pages
  • 189 x 246 x 23mm | 789g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236829344
  • 9781236829344