Jack.

Description

Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.

Physical Description

2 sheets, 3 p. : ill. ; 23 cm.

Creation Information

Blake, David Alexander & Blake, Charles William August 6, 1907.

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. More information about this patent can be viewed below.

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Inventors

  • Blake, David Alexander David Alexander Blake, of San Angelo, Texas, assignor of three-fourths to said David A. Blake and one-fourth to said Charles W. Blake. ; D. A. Blake.
  • Blake, Charles William Charles W. Blake, of Lake George, New York. ; C. W. Blake.

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Description

Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.

Physical Description

2 sheets, 3 p. : ill. ; 23 cm.

Notes

"Application filed September 26, 1906. Serial No. 336,260."

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Identifier

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Collections

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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

  • August 6, 1907

Accepted Date

  • August 6, 1907

Submitted Date

  • September 26, 1906

Added to The Portal to Texas History

  • Oct. 16, 2014, 6:42 a.m.

Description Last Updated

  • March 1, 2024, 7 p.m.

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Blake, David Alexander & Blake, Charles William. Jack., patent, August 6, 1907; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513782/: accessed May 26, 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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