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Cutter for Rotary Boring-Drills.

Description: Patent for an improvement to Hughes' previously patented rotary cutter design for oil drilling equipment (no. 930,759, 1909), to increase the cutting surface area and durability of the cutter.
Date: June 15, 1915
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Letter from William M. Nathan to I. H. Kempner, May 15, 1945]

Description: Letter from William M. Nathan to I. H. Kempner explaining that he had been dealing with an intricate personal matter and had not had time to reply to his past two letters. He explains that he would like to have to have a meeting soon to reignite productivity in some smaller towns. He also mentions that the United Jewish Drive is distracting from their fundraising especially because they did not get a brochure out in time. Last, he tells Kempner about his plans to continue solicitation for the H… more
Date: May 15, 1945
Creator: Nathan, William M.
Item Type: Refine your search to only Letter
Partner: Rosenberg Library

Cotton Separator

Description: Patent for Cotton Separator, The invention relates to improvements in the mechanism for pneumatically elevating or transporting materials of certain classes. It was primarily designed for the handling of cotton but is also adapted for use with other materials more or less analogous, which require to be elevated or transported for any one of several purposes.
Date: November 15, 1921
Creator: Garner, James C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Coffee and Teapot.

Description: Patent for an improved coffee and teapot, in which the coffee or tea are boiled into the water and then strained out. Included instructions and illustrations.
Date: June 15, 1869
Creator: Heiss, Gregor & Schmidt, Martin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Brick-Machine

Description: Patent for "that class of brick-machines usually termed 'dry-press machines,' in which clay is taken from the bank and passed into molds in a revolving wheel" (lines 15-19) and "consists more particularly in the construction of details and combination of parts" (lines 23-25) including instructions and illustrations.
Date: June 15, 1880
Creator: Johnson, Richard M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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