Patent for an apparatus for molding concrete walls which is easy to assemble and move around and can be used for different size and shape walls.

Coal beneficiation is achieved by suspending coal fines in a colloidal suspension of microscopic gas bubbles in water under atmospheric conditions to form small agglomerates of the fines adhered by the gas bubbles. The agglomerates are separated, recovered and resuspended in water. Thereafter, the pressure on the suspension is increased above atmospheric to deagglomerate, since the gas bubbles are then re-dissolved in the water. During the deagglomeration step, the mineral matter is dispersed, and when the pressure is released, the coal portion of the deagglomerated gas-saturated water mixture reagglomerates, with the small bubbles now coming out of the solution. The reagglomerate can then be separated to provide purified coal fines without the mineral matter.

An apparatus for the measurement of the critical current of a superconductive sample, e.g., a clad superconductive sample, the apparatus including a conductive coil, a means for maintaining the coil in proximity to a superconductive sample, an electrical connection means for passing a low amplitude alternating current through the coil, a cooling means for maintaining the superconductive sample at a preselected temperature, a means for passing a current through the superconductive sample, and, a means for monitoring reactance of the coil. The alternating current capable of generating a magnetic field sufficient to penetrate, e.g., any cladding, and to induce eddy currents in the superconductive material, passing a steadily increasing current through the superconductive material, the current characterized as having a different frequency than the alternating current, and, monitoring the reactance of the coil with a phase sensitive detector as the current passed through the superconductive material is steadily increased whereby critical current of the superconductive material can be observed as the point whereat a component of impedance deviates.

Patent for an embroidery needle that is simplified version for easy use and avoid complications. The embroidery needle has a better grip for the user.

Patent for a stamp affixing machine, which attaches stamps from a roll to envelopes inserted into the machine.

Patent for a stalk packer for corn harvesters, which packs the corn stalks before binding occurs.

Patent for a new and useful improvements in pumps.

Patent for improvements to rein buckles allowing them to be attached to a trace-chain, which will adapt them for use with plows and harnesses. Includes instructions and illustrations.

Patent for improvements in a device that cools pails of milk by evaporating water. Includes instructions and illustrations.

Patent for a tooth cleaning implement. This invention is designed to get between the teeth. Illustration included.

Patent for a portable sawmill, which can be put on an ordinary wagon and pulled out to where timber is being cut.

Patent for a mouse trap. Illustration included.

Patent for a new and improved toy airplane to be propelled by the feet and steered by the child seated inside, including illustrations. It "is relatively simple and inexpensive to produce, while also being able to withstand considerable rough handling" (lines 26-28).

Patent for washing machines with "roller-supporting frame for supporting the same either upon a horizontal surface or upon the top of a tub or receptacle in connection with which the machine is used" (lines 10-14) including illustrations.

Patent for a gate latch, which latches automatically and cannot be opened by animals but is easily opened by people.

Patent for a plow attachment which allows for more control in regard to how deep the plow digs.

Patent for a grain car, with improved methods or loading and unloading the grain, as well as an easy method for converting the car to haul regular cargo.

Patent for an improved shovel design.

Patent for a new and useful improvement in registering voting-machines.

Patent for "a self closing swinging gate" (line 9) including illustrations.

Patent for a screen. This invention is designed to allow for an adjustable screen to over come inequalities and inaccuracies of the window frame. Illustration included.

Patent for a screen. This invention comprises a class of window screens with metal frames. Illustration included.

Patent for certain new and useful improvements in riveting-machines.

Patent for a metal fence post, which can have many wires and rails attached to it.