3,630 Matching Results

Search Results

Copy Holder.

Description: Patent for a new and improved copy-holder. This design "is [for] an improved copy-holder intended especially for holding deeds when being transcribed to the records, and seeks to provide a simple, inexpensive construction by which the deed may be held and to and from which the deed or other paper may be adjusted without difficulty, such construction serving also to mark or indicate the particular line of the paper being copied" (lines 7-15).
Date: August 2, 1887
Creator: Adair, Irvine James
Partner: UNT Libraries Government Documents Department

Air Compressor for Deep Well Pumps.

Description: Patent for a new and improved air-compressor. This design "relates to improvements in air-compressing mechanism for the purpose of pumping for forcing from deep wells and performing similar work; and it consists in the construction and arrangement of a larger and smaller air-cylinder, and the combination therewith of mechanism to force the air from the larger into the smaller cylinder to increase the air-pressure in the latter" (lines 22-30).
Date: August 2, 1887
Creator: Adams, John R.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen