Machine for Pressing Shingles and Slabs and The Like (open access)

Machine for Pressing Shingles and Slabs and The Like

Patent for a machine designed for manufacturing shingles and other building material. Illustrations included.
Date: July 26, 1910
Creator: Baade, John
System: The Portal to Texas History
Rock Drill. (open access)

Rock Drill.

Patent for a new and improved rock-drill. This design "is to construct a simple and efficient rock-drill in which the forward feeding and rotating of the drill are accomplished automatically" (lines 15-18). It consists in "the drill-rod, a tappet-plate placed loosely on the drill-rod, clutch mechanism connected with the tappet-plate for engaging the drill-rod, a spring for impelling the drill-rod, a cam provided with conical ends for lifting the tappet-plate, and the guide" (lines 20-26).
Date: July 26, 1892
Creator: Belt, Perley P.
System: The Portal to Texas History
Cultivator (open access)

Cultivator

Patent for a cultivator. Illustrations included.
Date: July 26, 1910
Creator: Divin, Frank
System: The Portal to Texas History