4 Matching Results

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Improvement in Gang-Plow. (open access)

Improvement in Gang-Plow.

Patent for improvement in gang-plow by using an adjustable slotted cross-bar to enable the “plow-beams to oscillate, so that their landsides are always vertical, however uneven the ground may be.” (Lines 20-21) “This tool can also regulate the depth of the plows in the ground whereby the depth of furrow is adjusted.” (Lines 24-25) Illustration is included.
Date: April 20, 1869
Creator: Hall, Thomas J.
System: The Portal to Texas History
Improved Machine for Breaking and Scouring Hides (open access)

Improved Machine for Breaking and Scouring Hides

Patent for machinery for tanning animal hides.
Date: July 20, 1869
Creator: Bean, W. O.
System: The Portal to Texas History
Improvements in Velocipedes (open access)

Improvements in Velocipedes

Patent for improvements to a single-wheel velocipede.
Date: June 20, 1869
Creator: Dillaha, J. G.
System: The Portal to Texas History
Improvement in Needle-Threaders for Sewing-Machines. (open access)

Improvement in Needle-Threaders for Sewing-Machines.

Patent for improvement in needle-threaders for sewing machines by using an “eyelet-frame that formed by two equal parallelopipeds. These parallelopipeds are being kept together by two springs and may be separated by pressing the pins toward each other.” (Lines 32-35) “The axis of a conical eyelet will be laid in the joint planes of the parallelopipeds, its apex in the front side, its basis in the opposite side of the eyelet-frame, through which eyelet the thread has to pass when the instrument is used and applied to the machine-needle.” (Lines 37-42) This instrument can be used with curved or straight needles. Illustration is included.
Date: April 20, 1869
Creator: Thielepape, Wilhelm C. A.
System: The Portal to Texas History