Technical paper issued by the Bureau of Standards over studies conducted on the endurance of tires. 230 tires of 36 different brands were tested during the studies. The results of the studies are presented and discussed. This paper includes tables, and photographs.

"Working charts are given for the convenient selection of aluminum alloy propellers of a standard form, to operate in connection with six different engine-fuselage combinations. The charts have been prepared from full-scale test data obtained in the 20-foot propeller research tunnel of the National Advisory Committee for Aeronautics. An example is also given showing the use of the charts" (p. 3).

"This report presents some results obtained during an investigation to determine the relative characteristics for several methods of control of an overcompressed engine using gasoline and operating under sea-level conditions. For this work, a special single cylinder test engine, 5-inch bore by 7-inch stroke, and designed for ready adjustment of compression ratio, valve timing and valve lift while running, was used. This engine has been fully described in NACA-TR-250. Tests were made at an engine speed of 1,400 R. P. M. for compression ratios ranging from 4.0 to 7.6" (p. 329).

"Apparatus for recording photographically the start, growth, and cut-off of oil sprays from injection valves has been developed at the Langley Memorial Aeronautical Laboratory. The apparatus consists of a high-tension transformer by means of which a bank of condensers is charged to a high voltage. The controlled discharge of these condensers in sequence, at a rate of several thousand per second, produces electric sparks of sufficient intensity to illuminate the moving spray for photographing. The sprays are injected from various types of valves into a chamber containing gases at pressures up to 600 pounds per square inch" (p. 361).

"This report deals with the results of a series of studies of the kinetics of gaseous explosive reactions where the fuel under observation, instead of being a simple gas, is a known mixture of simple gases. In the practical application of the gaseous explosive reaction as a source of power in the gas engine, the fuels employed are composite, with characteristics that are apt to be due to the characteristics of their components and hence may be somewhat complex" (p. 503).

Patent for a beverage steeper where a strainer is provided to hold the material used for preparation, such as tea or coffee. The strainer is designed to lower into the coffee pot to allow for steeping and can be raised out of the water and affixed to the top of the pot for draining.

Patent for improvements in the crude oil refining processes and apparatuses. The invention focuses on creating an inexpensive and simplistic system that relies on temperature.

Patent for "the provision of a device adapted to be secured on the hub of the wheel for pulling the automobile out of mud or sand where the wheel would ordinarily spin without propelling the vehicle" (lines 11-16). It also includes an illustration.

Patent for a new and useful improved form of device for lifting push rods, intended more particularly for use on Ford motors, but susceptible of use on other makes of automobiles, when it is desired to position the cam shaft bearing in the Ford motors.

Patent for a new mortising-machine attachment for lathes or boring mills, designed to securely attach a bracket, hollow chisel, and boring bit to the machine, allowing for adjustable positioning to match the machine's work support.

Patent for a safety razor with innovations for effective use, convenient features (including for beard combing), and thorough cleaning of all components. Notable is a spring action mechanism controlled by the user's thumb, which causes the blade to move back and forth "to carry out a satisfactory cutting action" (lines 45-46).

Patent for a simple device that's placed in a grinding mill to automatically extract and regulate the amount of grain being withdrawn.

Patent for combination lock for safes or vaults with added mechanism for dispensing a gas to deter robberies.

Patent for gasoline measuring device for improving service stations for patrons to see the amount of gasoline. Air pressure will transfer gasoline from tank into measuring device. Gasoline measuring device will be quickly delivered to patrons.

Patent for an improvement in trucks adapted for railroad use including handling baggage and freight and allowing the supporting wheels to be arranged with respect to the body of the truck so they can be moved longitudinally.

Patent for the invention of a new and improved vehicle body suspension.

Patent for improvement in vehicle spring-wheels.

Patent for a device that determines the amount of liquid (particularly gasoline and oil) that flows from its glass container with the end of facilitating the exchange of goods, including illustrations.

Patent for a spittoon that does not spill the contents "in case the article is upset when moved by the foot or when struck in a way to cause the same to overturn".

Patent for improvements in vaporizing liquids referring to a processing a liquid such as gasoline or kerosene and properly mixing it with air.

Patent for mechanical riding horse that is designed for children to use. It's purpose is a toy that can be ridden and travelled on as a tricycle.

Patent for improvements towards the mechanical packing apparatus. The invention will connect the apparatus to power-operated presses, like that of the cotton press.

Patent for mud cleaning mechanism for tractor wheels. The mechanism's objective is to automatically clean from and between the cleats and the ground, and along the rims of tractor wheels while the wheels are in motion. Additional advantages noted are that this mechanism is easily assembled and disassembled, durable and compact, and applicable with multiple styes of tractors.

Patent for a steering gear stabilizer for car steering wheels. Intent of gear is to keep steering wheel from getting out of the driver's hands when going over rough terrain.