Spark-Arrester. (open access)

Spark-Arrester.

Patent for a steam train locomotive spark arrester consisting of curved pipe smoke stack that holds solid particles of exhaust on the edges of the pipe, which are expelled by the force of exhaust gases coming through, into the fire box thereby preventing their escape outside the engine reducing danger from stray sparks. This system also uses less fuel than previous systems.
Date: April 23, 1907
Creator: Chalfant, Cotter Strawn
System: The Portal to Texas History
Railway-Switch. (open access)

Railway-Switch.

Patent for a railway switch that can be activated from a moving train and has its moving parts in a casing.
Date: November 23, 1909
Creator: McCalib, David C.
System: The Portal to Texas History
Apparatus for Sizing Ores or for Other Uses (open access)

Apparatus for Sizing Ores or for Other Uses

Patent for an apparatus for sizing ores. This invention is to "accomplish and accurate or approximately accurate sizing or classification of ores or granular materials in a rapid and thorough manner and with as large a capacity as possible" (line 15-19) illustrations included.
Date: June 23, 1903
Creator: Swain, Seth Russell
System: The Portal to Texas History