Pamphlets. Patents. 1846-1879 Volume 1

Pamphlets. Patents. 1846-1879 Volume 1

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1846 edition. Excerpt: ...that the shock and strainsproduced by the passage of a train of cars over it, would inevitably damage, if not destroy the rails, chairs, and cars. Moreover, the base of the bolt-case being divided, its chief strength is above, and it would not, if made large enough for a chair, afford a sufficiently firm support to the base of the rail to be of any service. Hence, while the bolt-case is an ingenious and useful contrivance for the purpose for which it was designed, it could not be used as a railroad chair. '..., -;.i.'-, Renwick's chair, instead of being made like the bolt-case with an arch to pass over the rail, and a divided, weak base, consists of a broad plat and strong plate for the rail to rest on firmly, with narrow lips set up which merely embrace the lower side or base of the rail, leaving its upper part entirely unobstructed. It is an exceedingly eimple, strong, and durable railroad chair, but does not appear to be constructed on a plan that would admit of its use as a door bolt-case.. The door-bolt and the chair are beyond doubt widely different inventions, for totally dissimilar uses, and each properly the subject of a separate patent; Wheeler's invention, therefore, does not embrace anything that would have justified the refusal of a patent for Renwick's chair. The committee, therefore, submit the following resolution: Resolved, That the committee be discharged from the further consideration of said memorials. Another object was, that if Renwick's patent could stand the test of the attention thus called to it, the office should be held to grant other patents upon similar grounds of reasoning and analogy. The object was to serve the public, and not defame an individual whose opinions and influence demand notice, and derives weight only..show more

Product details

  • Paperback | 164 pages
  • 189 x 246 x 9mm | 304g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236630572
  • 9781236630575