Improvement in Combination Locks.

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Description

Patent for combination latch-locks, "in such manner as that the knob-latch, while performing its special function, will also serve as the lock upon any combination to which it may be adjusted, and the said latch can be operated from either the outside or inside of the door as a latch simply, or as a combination lock, which latter is further secured from the inside by the employment of a safety pin, rendering the bolt in its locked position perfectly secure, while by its partial withdrawal it prevents the possible change of the combination from the outside, and admits of the … continued below

Physical Description

[1], 2 p. : ill. ; 23 cm.

Creation Information

Hall, Phidello W. July 1, 1873.

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This patent is part of the collection entitled: Texas Patents and was provided by the UNT Libraries Government Documents Department to The Portal to Texas History, a digital repository hosted by the UNT Libraries. It has been viewed 16 times. More information about this patent can be viewed below.

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  • Main Title: Improvement in Combination Locks.
  • Added Title: Combination Locks.

Description

Patent for combination latch-locks, "in such manner as that the knob-latch, while performing its special function, will also serve as the lock upon any combination to which it may be adjusted, and the said latch can be operated from either the outside or inside of the door as a latch simply, or as a combination lock, which latter is further secured from the inside by the employment of a safety pin, rendering the bolt in its locked position perfectly secure, while by its partial withdrawal it prevents the possible change of the combination from the outside, and admits of the free use of the latch independent of such combination." (Lines 29-42) Includes instructions and illustrations.

Physical Description

[1], 2 p. : ill. ; 23 cm.

Notes

Specification forming part of Letters Patent No. 140,500, dated July 1, 1873; application filed June 20, 1873.

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Texas Patents

United States patents filed by Texas inventors before 1900. A majority of the patents are for agricultural and industrial applications.

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  • July 1, 1873

Accepted Date

  • July 1, 1873

Submitted Date

  • June 20, 1873

Added to The Portal to Texas History

  • July 20, 2011, 4:24 p.m.

Description Last Updated

  • March 6, 2024, 7:21 p.m.

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Hall, Phidello W. Improvement in Combination Locks., patent, July 1, 1873; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166873/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.

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