Report presenting a description of fluid compasses that are being used in aircraft, including why magnetic compasses are not usable. Details of the distant compass are provided, which is an improved form of the compass that has a practical application in seaplanes.

To obtain the absolute velocity of an airship by knowing the speed at which two routes are covered, we have only to determine the geographical direction of the routes which we locate from a map, and the angles of routes as given by the compass, after correcting for the variation (the algebraical sum of the local magnetic declination and the deviation).

Report presenting a description of the interaction between the dynamometer hub and the flywheel of the engine in aircraft. The negative rotary moments in propellers generally allow for the cessation of one cylinder without any lifting on the part of the propeller, and without depriving the engine of its flywheel.

Report presenting a discussion of ways to save fuel on traffic flights, including some calculations that can be used for determining fuel efficiency. The primary ways of lessening fuel consumption include flying with a throttled engine and diminished speed.

Report presenting an investigation of the flexibility of bearing surfaces and stress on fabrics used in wings. Equations are given for calculating some of these loading factors.

From Summary: "The author, who was a captain of the Reserves in the Technical Department of the Aviation Division (Board of Airplane Experts) during the war, shows what means were taken for the creation of new airplane types and what tests were employed for trying out their flying properties, capacities and structural reliability. The principal representative types of each of the classes of airplanes are described and the characteristics of the important structural parts are discussed. Data regarding the number of airplanes at the front and the flying efficiency of the various classes of airplanes are given."

It is argued that there should be an agreement as to what conventions to use in determining absolute coefficients used in aeronautics and in how to plot those coefficients. Of particular importance are the absolute coefficients of lift and drag. The author argues for the use of the German method over the kind in common use in the United States and England, and for the Continental over the usual American and British method of graphically representing the characteristics of an airfoil.

Patent for a process that reduces iron and lead ores. This is done through two distinct combustion processes, the first of which converts the fuel and oxygen into carbon dioxide and the second process which produces carbon monoxide, that can produce iron or steel of different grades.

Patent for individual doors for compartments within a refrigerator, to protect items from being exposed to warm air when the refrigerator door is ajar. This patent also provides for the ability to apply doors as attachments to refrigerators without pre-installed compartment doors.

Patent for a collar fastener "which will hold the flaps of a collar properly spaced from each other and insure a secure gripping of the flaps to avoid untidy appearance of the collar" (lines 14-17). Includes illustrations.

Patent for a fastener to hold the flaps of a collar securely.

Patent for an efficient burner of crude or fuel oil that can be used with less dangerous fuels while maintaining the same high level of heat and vaporization necessary for use in domestic environments.

Patent for a tool designed to open boxes of shoe polish paste.

Patent for a machine that destroys boll weevils and other agricultural pests. It distributes moisture and poisonous powder that adheres to plants.

Patent for a broom that has replaceable straw sections.

The authors argue that the center of gravity has a preponderating influence on the longitudinal stability of an airplane in flight, but that manufacturers, although aware of this influence, are still content to apply empirical rules to the balancing of their airplanes instead of conducting wind tunnel tests. The author examines the following points: 1) longitudinal stability, in flight, of a glider with coinciding centers; 2) the influence exercised on the stability of flight by the position of the axis of thrust with respect to the center of gravity and the whole of the glider; 3) the stability on the ground before taking off, and the influence of the position of the landing gear. 4) the influence of the elements of the glider on the balance, the possibility of sometimes correcting defective balance, and the valuable information given on this point by wind tunnel tests; 5) and a brief examination of the equilibrium of power in horizontal flight, where the conditions of stability peculiar to this kind of flight are added to previously existing conditions of the stability of the glider, and interfere in fixing the safety limits of certain evolutions.

Patent for flushing tanks to connect to siphon closets that is improvement vacuum

Patent for a lock which requires a key that is adjustable and difficult to duplicate in order to prevent lock picking.

Patent for '' bridge improvements, especially for placement over gutters, ditches, and alike ''

Patent for a simple, inexpensive locking mechanism that would prevent an automobile from being used in an unauthorized way, while still allowing the vehicle to be manually moved or towed if needed, including illustrations.

Patent for an inexpensive, efficient boring and threading tool that "will enable a smooth and even surface to be produced with a minimum of skill on the part of the operator" (lines 18-21).

Patent for a novel combination tool used to construct and maintain wire fencing, including design modifications that encompass the ability to stretch and tie wires without the need for an additional tool, including illustrations.

Patent for an improved roadway that utilizes concrete tracks and asphalt or bitumen filler to create a grooved, hard, and durable surface, with illustrations.

Patent for an improved, cost-effective method of releasing ship hulls from a mold via "hydrostatic means and floating said hull into the launching bay or channel" (lines 19-21) without the need for exterior scaffolding, including illustrations.