Corn-Topper. (open access)

Corn-Topper.

Patent for corn-toppers for cutting off the heads of Kafir corn, milo maze, and other similar grain plants.
Date: August 28, 1917
Creator: Pletcher, Thomas S.
System: The Portal to Texas History
Trailer. (open access)

Trailer.

Patent for "...an improved construction and arrangement of trailers and has for an object that provision of means which will allow as easy turning movement where a number of trailers are connected while admitting of strain between the various trailers, whereby they are propelled properly around a curve." (lines 5-15) including illustrations.
Date: August 28, 1917
Creator: Watkins, Leigh
System: The Portal to Texas History
Spading-Machine. (open access)

Spading-Machine.

Patent for a spading-machine that "can be propelled by any mechanism desired and which has soil engaging devices mounted in a novel manner whereby, as the machine is moved forwardly, said devices will be forced downwardly into the soil and then lifted upwardly so as to lift or break the soil." (lines 11-17) including instructions and illustrations.
Date: August 28, 1917
Creator: Robinson, David M.
System: The Portal to Texas History
Time-Controlling Mechanism. (open access)

Time-Controlling Mechanism.

Patent for new and useful Improvements in Time-Controlling Mechanism "designed more particularly for the automatic operation of electric switches, circuit closers, and the like" (lines 13-15), including illustrations and instructions. A main object of the invention is to provide a time controlling mechanism for alarm clocks to "intermittently operate the electric switch or other movable member at pre-determined intervals" (lines 19-21).
Date: August 28, 1917
Creator: Gerdes, Herman Henry.
System: The Portal to Texas History
Plate-Lifter (open access)

Plate-Lifter

Patent for an "...improved lifter whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient..." (lines 19-23).
Date: February 28, 1917
Creator: Mitchell, Frank
System: The Portal to Texas History
Rotary Boring-Drill. (open access)

Rotary Boring-Drill.

Patent for a rotary boring-drill that can easily be assembled or disassembled without the aid of a special tool, is equipped with removable cutters, has clearance between the cutters to prevent material becoming packed around them, and is arranged to mix material disintegrated by the cutters into a mud.
Date: August 28, 1917
Creator: Hughes, Howard R.
System: The Portal to Texas History
Rope-Socket. (open access)

Rope-Socket.

Patent for rope socket "for use in connection with oil well drilling bits" (lines 13-14) "which can be quickly, easily and conveniently adjusted to provide a swivel or nonswivel socket as desired" (lines 16-19) including illustrations.
Date: May 28, 1917
Creator: McConnell, Scott Russell
System: The Portal to Texas History
Account-Book. (open access)

Account-Book.

Patent for improvements in account books to "facilitate the identification of pass books and to expedite the keeping of accounts by enabling the cashier, or bookkeeper, or other clerk concerned, to readily identify the book of the depositor or other owner and thereby more readily post the entries from one book to another in keeping accounts" (lines 16-22); includes illustration.
Date: August 28, 1917
Creator: Exline, Marcus, P.
System: The Portal to Texas History