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Lifting Device.

Description: Patent for a new and improved jack. This design "relates to devices for raising fence-corners in repairing the same, and for lifting weights generally; and the object of [the] invention is to produce a simple and powerful device whereby a single operator can greatly increase his [or her] capacity for lifting heavy objects" (lines 8-14).
Date: November 30, 1886
Creator: McNabb, James M.
Partner: UNT Libraries Government Documents Department

Telephone-Switch

Description: Patent for a telephone switch. "This invention relates to switches for telephone and more particularly to shifting devices for short-circuiting certain classes of lines, and the object is to provide a system of cutting off communication in what are called 'party' lines" (line 8-13). Illustration included.
Date: April 30, 1907
Creator: Mount, Timothy S.
Partner: UNT Libraries Government Documents Department