Virtually distortion free large field high resolution imaging is performed using an imaging system which contains large field distortion or field curvature. A reticle is imaged in one direction through the optical system to form an encoded mask. The encoded mask is then imaged back through the imaging system onto a wafer positioned at the reticle position. Particle beams, including electrons, ions and neutral particles, may be used as well as electromagnetic radiation.

Americium is separated from mixtures containing plutonium, other actinides, and other non-lanthamide impurities, by a combined process of anion exchange resin sorption to remove plutonium, and a bidentate organophosphorus solvent extraction of americium of the anion exchange resin effluent. Dihexyl-N,N-diethylcarbamylmethylenephosphonate is a preferred solvent. The initial mixture may be subjected to a cation exchange operation to remove monovalent impurities. The process is especially effective when aluminum, zinc, lead, and copper are present in significant quantities in the original mixture.

A method and a cutter are disclosed for producing a large cavity filled with a uniform bed of rubblized oil shale or other material, for in-situ processing. A raise drill head has a hollow body with a generally circular base and sloping upper surface. A hollow shaft extends from the hollow body. Cutter teeth are mounted on the upper surface of the body and relatively small holes are formed in the body between the cutter teeth. Relatively large peripheral flutes around the body allow material to drop below the drill head. A pilot hole is drilled into the oil shale deposit. The pilot hole is reamed into a large diameter hole by means of a large diameter raise drill head or cutter to produce a cavity filled with rubble. A flushing fluid, such as air, is circulated through the pilot hole during the reaming operation to remove fines through the raise drill, thereby removing sufficient material to create sufficient void space, and allowing the larger particles to fill the cavity and provide a uniform bed of rubblized oil shale.

Patent for improvements to check-books for easier access to the check stubs.

Patent for a check book stub holder. This device holds back used check stubs in a check book.

Patent for a collapsible container that is easily assembled without the "employment of nails or fastening devices" (line 10).

Patent for corn-popper improvement by connecting to the cover of the popper a rotating agitating blade which would prevent the corn within from burning.

Patent for a device that drills into the ground and lifts the contents into a metal container. The hand-operated device also has wings that expand to let the user know when to empty the contents.

Patent for toy hats for dolls. It is a low-cost doll's hat which can also be used to carry candy for children, including illustrations.

Patent for a device that can be attached to furniture and which traps insects.

Patent for improved lawn trimmer "whereby the margins of a lawn adjacent side walks or curbing may be trimmed." (lines 12-14) including instructions and illustrations.

Patent for improvements to peanut-planters in order to plant peanuts without removing or crushing the hulls.

Patent for a machine which uses blasts of air to separate batches of commingled seeds or to sort one type of seed into groups according to size. Designed to be easily cleaned and repaired.

Patent for separator to be used with a plow in removing undesirable materials from dirt.

Patent for a protective fabric covering for automobile and other similar tires which is secured through detachable plugs. This protects the tire from wear, puncturing, and skidding over surfaces.

Patent for an invention of new useful improvement in steam washing machine. The object of the invention is to provide a washing machine of the class referred to, embodying, in connection with a suitable steam drum or boiler and means for producing a circulation of steam and hot water. The detail of such invention is explained further in the document and the drawing that illustrate how the object looks.

Patent for "an improved neck for bottles and jars; and it consists, essentially, of a notch formed on each side of the cork to enable the fingers of the operator to obtain a firm grip thereon in order to extract same." (lines 8-12)

Patent for an improved equalizing device for pump-rods used in hand or windmill pumps that increases the operating efficiency and decreases the manufacture cost of the device.

Patent for improvements to rail joint chairs, which claims to provide "an integral-joint chair and means for clamping the chair upon the joint and without the use of any form of fastening which may or can become loosened by use." (lines 16-19)

Patent for improved railway gate which functions as cattle-guard and prevents foot traffic on railroad bridges, and opens and closes automatically for trains.

Patent for a wrench with an adjustable handle for multiple uses, with illustrations.

Patent for an improvement to check books and covers.

Patent for a tire setting and cooling machine.

Patent for an improvement in well drilling.