Reports of Patent, Design and Trade Mark Cases Volume 25

Reports of Patent, Design and Trade Mark Cases Volume 25

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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. 1908 edition. Excerpt: ...movement of the feeding sleeve produces direct metallic contact between the parts, overcomes the friction, and carries down on the spindle the gripper carriers with the grippers gripping the wire, the wire passing into the boot or other material and being cut off. In the reverse movement the pressure on the grippers is first released, the rollers being moved away from contact with the ends of the grippers, and then the gripper carrier, with its grippers, is carried up so as to enable a fresh hold on the wire to be taken by another motion. The feeding sleeve has slots in it which have a slight slack which enables the sleeve to move slightly up or down without moving the inner' gripper carrier; this slight movement enables the grippers alternately to t-ake a firm hold on the wire and to release it without any simultaneous movement of the gripper carrier. This is effected by means of a lost motion, obtained by means of the slots and the friction blocks co-operating with and seizing hold of the spindle. Thus the friction blocks are sufficient to hold against the spindle while the lost motion or play is taking place, but, as soon as real metallic contact occurs, the friction gripper carrier moves up or down as the case may be. is entirely overcome, and the British United Shoe Machinery Go. Ld. v. A. Fussell J: Sons Ld. The Plaintiffs' evidence has established that the improvement in question enables three times the amount of work to be done that the best previous machine could do, or, as Mr. Benn-ion put it, that the improved machine will do in 5 minutes what the best machine previously would have done in from 15 to 20 minutes. The improved machine has been very largely used. The average number of machines in use, more

Product details

  • Paperback | 544 pages
  • 189 x 246 x 28mm | 962g
  • United States
  • English
  • black & white illustrations
  • 1236881141
  • 9781236881144