UNT Libraries Government Documents Department - 3 Matching Results

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Journal-Bearing

Patent for a self-lubricating journal bearing that is protected from foreign matter. Illustrations included.

Date: April 13, 1909

Creator: Lanaux, Alfred A.

Item Type: Patent

Patent for a portable press for hay. "My invention relates to portable hay and other presses, and has for its objects, first, an improved power-transmission and lever device for pressing or forcing the hay or other material into th box or frame of the press" (line 8-13). Illustration included.

Date: October 13, 1903

Creator: McKean, Frank

Item Type: Patent

Rotary Drilling Apparatus.

Patent for a rotary drilling mechanism for drilling wells, which has better vertical movement than other models.

Date: August 13, 1907

Creator: Wiggs, James A., Jr.

Item Type: Patent

UNT Libraries Government Documents Department - 3 Matching Results

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Journal-Bearing

Portable Press for Hay

Rotary Drilling Apparatus.