UNT Libraries Government Documents Department - 7 Matching Results

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Safe Lock

Description: Patent for providing "a means which will necessitate the operation of a series of setting devices before the several bolts can be moved to unlock the door". (lines 11-14).
Date: June 13, 1918
Creator: Harris, William J. B. of Bonham, TX

Hinged Connection

Description: Patent for a simply designed, durable, and inexpensively produced hinged connection between any swinging item (i.e., door) and non-swinging item (i.e., door jam).
Date: April 13, 1915
Creator: Coleman, Paul H.

Saw Gummer or Sharpener.

Description: Patent for an apparatus "which may be easily applied to a gang of gin saws, which is arranged in such a manner that the grinder may be quickly and nicely adjusted so as to properly fit the teeth of the saws and to enter between them to any desired distance, also to provide a simple and efficient feed mechanism which moves the saws tooth by tooth as they are ground, to provide a simple means of regulating the pitch of the grinder, and in general to produce a machine which enables the saws to be … more
Date: November 13, 1894
Creator: Oglesby, Jerrold E.

Rail-Joint.

Description: Patent for improvements in rail-joint fastenings by providing “curved fish-plates with bearing-surfaces adapted to receive rubber washers, and the bolt has a slot through which the tapered split key is passed and the thin portion thereof turned up against the bolt to prevent displacement.” (Lines 20-25) Thus it will “securely retain in position, easily removed when desired, and [will] prevent rattling sounds as the cars pass over the rails.” (Lines 16-19) Illustration is included.
Date: October 13, 1891
Creator: Wiley, John Martin

Quilting-Frame.

Description: Patent for a quilting frame that has "a novel means of supporting and tilting the track, and also other features" (lines 15-16). The frame is suspended in a track, and the track can be tilted so the frame can run in bot directions on the track.
Date: March 13, 1894
Creator: Banker, John P.
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