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Book Adjuster.

Description: Patent for a new and improved book-adjuster. This design consists in "[t]he combination, with the holder having the horizontal longitudinal recess and the vertical screw-threaded aperture, of the base-piece, the adjusting-screw swiveled at its lower end in the said base-piece, and the spring-catch" (lines 3-8).
Date: February 8, 1887
Creator: Adair, Irvine James
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electrical Fare-Box.

Description: Patent for device "to improve the illumination and increase the efficiency and subserviency of street-care fare-boxes. To these ends the source of light is located in the interior of the box, instead of being placed in a separate chamber at the outside of the box, as is now done, and electrical agency is utilized to produce the light and also to notify the driver that a passenger requires change and when a fair has been deposited in the box" (lines 8-17).
Date: February 8, 1887
Creator: Crowdus, Walter A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric Arc Lamp.

Description: Patent for a new and improved electric-arc lamp. This design is "for utilizing a part of the magnetic field of the electro-magnet to act as a retarding medium or a brake to the carbon-holder, which consists of a system of gear-wheels provided with a ratchet and pawl . . . actuated from rack-teeth cut in the side of the upper-carbon rod, on the last spindle of which is adjustably secured a disk of soft iron or other magnetic material, so located as to be within the influence of the magnetic fiel… more
Date: March 29, 1887
Creator: Crowdus, Walter A. & Sutton, Henry M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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