Among the fuels which will operate at compression ratios up to at least 8.0 without preignition or "pinking" is hecter fuel, whence a careful determination of its performance is of importance. For the test data presented in this report the hecter fuel used was a mixture of 30 per cent benzol and 70 per cent cyclohexane, having a low freezing point, and distilling from first drop to 90 per cent at nearly a constant temperature, about 20 degrees c. below the average distillation temperature ("mean volatility") of the x gasoline (export grade). The results of these experiments show that the power developed by hecter fuel is the same as that developed by export aviation gasoline at about 1,800 r.p.m. at all altitudes. At lower speeds differences in the power developed by the fuels become evident. Comparisons at ground level were omitted to avoid any possibility of damaging the engine by operating with open throttle on gasoline at so high a compression. The fuel consumption per unit power based on weight, not volume, averaged more than 10 per cent greater with hecter than with x gasoline. The thermal efficiency of the engine when using hecter is less than when using gasoline, …

Patent for an improvement to wrenches. This wrench uses a sliding jaw system for increased utility.

Patent for improvements in a tool joint that has been adapted to connect sections of a drill used in drilling wells.

Patent for a device that heats wagon and buggy wheel tires that will warm them evenly.

Patent for an improved tatting shuttle. This new shuttle will hold multiple bobbins and shuttles to carry multiple colors of threads.

Patent for new improvements for Spring-Wheels "in which the springs are rigidly secured to the hub portion and pivotally connected with the rim portion" (lines 10-12) including construction and illustrations.

Patent for a device which acts as "a simple and relatively inexpensive apparatus by means of which a camera shutter may be operated either for snapshots or time exposures, from a point at a distance from the camera so that the operator may be included in the photograph and yet be able to absolutely control the time and duration of the exposure" (lines 10-17). Illustrations included.

Patent for a mechanism that shreds hay, straw, or other feed.

Patent for an automatic cut off device for oil tanks that indicates the amount of water in an oil tank and will automatically close the discharge opening when all the water has been discarded from the tank.

Patent for bell and spigot concrete pipes with a slip joint. This eliminates the potential for wear of the slipping joints, thus mimicking a metal pipe.

Patent for an improved means of fastening slats to belts without the use of rivets or other fasteners.

Patent for a peanut harvester which can be attached to a standard cultivator frame. It is designed to uproot and sever peanut vines, then deposit the newly aerated peanut vines back onto the ground.

Patent for pumps for oil and water wells that can be operated by compressed air to force the water or oil out of the well.

Patent for an invention that relates to door stops and holders, with the object to limit the swinging of the door when opened and will also hold the door open when it is desired to maintain the same in a open position.

Patent for a fastening strap that secures baby shoes to baby feet, including illustrations.

Patent for improvements in display devices that displays apparel without taking up a lot of space and will be out of the way when not needed.

Patent for an improved controlling mechanism for accelerating the warming up of engines, especially automotive and marine engines. It can maintain a good working temperature while running at slow speeds so that the engine may operate economically in cold weather.