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Dental Mold.
Patent for dental mold, it is an improvement on patent no. 700855, by the same inventor. The improvement was to have open sides and large exit at the bottom of the lower neck of the mold, and a flask having a wide inlet in order to keep the molten metal from contact with the metal of the mold to avoid being suddenly cooled. (Lines 19-23) Illustration is included.
Date:
March 31, 1903
Creator:
Streetman, Willard
System:
The Portal to Texas History
Bricklayer's Guide-Line Holder.
Patent for improvements in Bricklayers' Guide-Line Holders with spring controlled jaws for anchoring the holder to the brick, securing it in a stationary position on the wall.
Date:
March 31, 1914
Creator:
Knott, Miller & Bible, Adam Calver
System:
The Portal to Texas History
Weighing Attachment for Wagons
Patent for improvements in the weighing attachments for wagons so that "the wagon body with its contents may be weighed without removing it from the holsters; and it has for its object to provide a device which shall be simple in construction, accurate, and easily operated" (lines 10-14).
Date:
December 31, 1889
Creator:
Gragg, Zachry Taylor
System:
The Portal to Texas History