USRE1063E - Improvement in locks - Google Patents

Improvement in locks Download PDF

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Publication number
USRE1063E
USRE1063E US RE1063 E USRE1063 E US RE1063E
Authority
US
United States
Prior art keywords
tumblers
shackle
case
key
improvement
Prior art date
Application number
Other languages
English (en)
Inventor
Thomas L. Pyb
Publication date

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Definitions

  • rlhe invention is more especially designed for padlocks, but still is applicable to other forms of locks.
  • A represents the case ot' a padlock, which may be ofthe usual form; and B is a shackle, which is also of the usual construction, and applied to the case A in the ordinary way.
  • B is a shackle, which is also of the usual construction, and applied to the case A in the ordinary way.
  • Each tumbler O has a triangular or V-shaped projection, d, at its under side, which projection ts in a V-shaped groove in 'a bar, D, which has a spiral spring, e, bearing against its under side, as is clearly shown in Figs. l and 2.
  • Each tumbler C has an opening, f, made through it to receive the key E, which key has bits g projecting from it at opposite sides, said bits being of unequal length,
  • the bar D retains the tumblers in proper position so that the catches b will be retained in the eye o of the shackle.
  • the ends of the catches Zn are rounded,
  • thekeyE is insertedin the site directions', two moving to the right and two to the left, and the bar D is pressed or moved downward, the projections d forcing down the bar, and when the slots b are in line the shackle is thrown out from the case.
  • the bar D by aid of spring e, throws the tumblers back to their original position, when the key is withdrawn or is slightly turned back by the hand.

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