Patent for a tool to be used with a drill or bit that allows the user to simultaneously drill and form a countersink. It also has a bit gauge that allows it to be used for drills of varying sizes.

In short, the "politics of aviation" lies in a few propositions: the need of having as large a number of fields as possible and of sufficient area; the utilization of the larger part of the existing military fields; the selection of uncultivated or unproductive fields, whenever technical conditions permit; ability to disregard (save in exceptional cases) objections of an agricultural nature.

This document reports the economic geology of the Lacasa area, Ranger district in North-Central Texas, with fieldwork done in April and May of 1919.

Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations.

"The tests described in this report were made to determine the error caused by using small tubes to connect orifices on the surface of aircraft to central pressure capsules in making pressure distribution tests. Aluminum tubes of 3/16-inch inside diameter were used to determine this error. Lengths from 20 feet to 226 feet and pressures whose maxima varied from 2 inches to 140 inches of water were used. Single-pressure impulses for which the time of rise of pressure from zero to a maximum varied from 0.25 second to 3 seconds were investigated" (p. 303).

"This report presents the results of tests made on three sizes of roots type aircraft engine superchargers. The impeller contours and diameters of these machines were the same, but the length were 11, 8 1/4, and 4 inches, giving displacements of 0.509, 0.382, and 0.185 cubic foot per impeller revolution. The information obtained serves as a basis for the examination of the individual effects of impeller speed and displacement on performance and of the comparative performance when speed and displacement are altered simultaneously to meet definite service requirements" (p. 3).

This report is a description of a method of propelling airplanes by the reaction of jet propulsion. Air is compressed and mixed with fuel in a combustion chamber, where the mixture burns at constant pressure. The combustion products issue through a nozzle, and the reaction of that of the motor-driven air screw. The computations are outlined and the results given by tables and curves.

Patent for an attachment for cars. This attachment reduces carbon deposit in the cylinder and on the valves of the car.

Patent for new and improved automobile jack that facilitates secured access to repair the underside of the automobile, including illustrations. Jack consists of a large frame, part of which is curved for tilting, water adjustable weight counterbalance, and wheel locking channels.

Patent for a detachable bail (wire handle) for cans and buckets allowing bails and cans to be packed separately and reducing overall packing space.

Patent for improvements on chassis connections for fastening a truck body sill on a chassis without boring a hole or weakening the will, while making the connection easier to make as well as more quickly; includes illustrations.

Report published in a scientific bulletin, describing the geology and mineral resources that reside in McLennan county.

Patent for improvements to the tractor with adjustable framework for the wheels (narrower or wider).

Patent for an improvement on the design of pumps used in the oil industry. This uses a combination of water, sand, grits, and other sediments for deep wells.

Patent for improvements to the measuring device used to ascertain the depth of a well.

Patent for a nut and pipe wrench that has a detachable handle member which allows the shank to be reduced and extended.

Patent for a medical instrument used to perform circumcisions "without pain and bloodlessly" (lines 10-11) and illustration.

Patent for an unscrewing device for pipe-joints, in the event that the drill stem gets stuck while drilling wells. This invention allows the user to unscrew "the joints of the drill stem" and withdraw "the same without the use of the left hand threaded string of pipe" (lines 35-38).

Patent for improved tire chains which can withstand greater strain.

Patent for a gate-latch that latches closed with extension of the gate, but allows the gate to open by elevating said latch.

Patent for improving structure of clipper forming co-pending application Serial No. 469,842. Simplifying manufacturing and adding other features.

Patent for a device in "which the center and edges" of a silo "will be packed with equal firmness and solidity" (lines 14-16) of materials, including an illustration and description of the device.

Patent for a puzzle made of interlocking blocks that are attached by a cord through holes in the blocks, that, when fully assembled, forms the shape of a Chinese cross.

Patent for less expensive chemical wood treatment that will not leach out, will make wood more durable, and preserve wood for multiple uses including marine construction.