Calculating Device.

Description

Patent for a new and improved calculator. This design "consists in having a central disk provided on each side with a disk somewhat smaller, the three being pivoted centrally, so that the smaller disks on the sides may be rotated independently of the central disk. The central disk has twelve or more marginal figures on each side, equidistant from each other, and a column of figures extending inwardly from each marginal figure" (lines 19-27).

Physical Description

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

Creation Information

Tucker, Argyle W. November 24, 1885.

Context

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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Inventor

  • Tucker, Argyle W. Tucker, A.W., of Midlothian, assignor of one-half to William T. Stewart, of Big Springs, Texas.

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Description

Patent for a new and improved calculator. This design "consists in having a central disk provided on each side with a disk somewhat smaller, the three being pivoted centrally, so that the smaller disks on the sides may be rotated independently of the central disk. The central disk has twelve or more marginal figures on each side, equidistant from each other, and a column of figures extending inwardly from each marginal figure" (lines 19-27).

Physical Description

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

Notes

"SPECIFICATION forming part of Letters Patent No. 331,264, dated November 24, 1885. Application filed April 13, 1885. Serial No. 161,996. (No model.)"

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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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Creation Date

  • November 24, 1885

Accepted Date

  • November 24, 1885

Submitted Date

  • April 13, 1885

Added to The Portal to Texas History

  • Aug. 4, 2011, 5:55 p.m.

Description Last Updated

  • Aug. 5, 2020, 1:33 p.m.

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Tucker, Argyle W. Calculating Device., patent, November 24, 1885; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171141/: accessed March 28, 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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