A steering system for use with a multiple vehicle train is disclosed which permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.

A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the receiver as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide a receiver having a desired aperture aspect.

A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet through which vapors can exit that can be cooled to provide oil, and having a second outlet through which spent shale fines are removed. A burner connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle …

Patent for a clothes pin consisting of a single piece of bent wire.

Patent for a cotton chopper that can also chop or cut corn, cane, broom-corn, peas, or any similar plants that are planted thick in drills or rows. This particular chopper includes an approved arrangement and adjustment of the chopping-blades that can be set to cut at different angles.

Patent for a cabinet. Illustration included.

Patent for a crate or coop. This invention is connected at the corners possessing a removable bottom along with a readily detachable cover. Illustration included.

Patent for a device that combines the function of a land-roller, furrow opener, and marker. Illustration included.

A combination regenerative ring and backward Raman waveguide amplifier and a combination regenerative ring oscillator and backward Raman waveguide amplifier which produce Raman amplification, pulse compression, and efficient energy extraction from the CO/sub 2/ laser pump signal for conversion into a Stokes radiation signal. The ring cavity configuration allows the CO/sub 2/ laser pump signal and Stokes signal to copropagate through the Raman waveguide amplifier. The backward Raman waveguide amplifier configuration extracts a major portion of the remaining energy from the CO/sub 2/ laser pump signal for conversion to Stokes radiation.

Patent for an inexpensive and simple beer cooler that is used in bars, hotels, and other places that disperse beer in small amounts. The cooler has an ornamental appearance and is "adapted to thoroughly cool the beer by a consumption of a minimum amount of ice; to so construct the cooler as to adapt the same to serve as a refrigerator for the storing and cooling of bottled goods such as beer, ale, porter, &c., and furthermore to arrange the cooler in such manner as to permit of the introduction and removal of beer-kegs without the necessity of lifting the same from the floor" (lines 14-23).

Patent for a cattle-guard that does not let cattle become entangled and killed in the guard, and does not allow cattle to pass over the rails. Cattle also will not get thrown or trip on the guard, and the trains will not be endangered.

Patent for bale-tie buckle improvement for tightly securing single length wire prior to pressure release around a cotton bale. Further bale-tie buckle improvements include sharper bends using flat or oval wire to further decrease slipping of wire.

Patent for improvements to a device for exterminating insects, in particular corn weevils, including illustrations.

Patent for check-protectors that prevent unauthorized tampering with perforating rollers with springs and jaws.

An improved photovoltaic solar cell is described including a p-type amorphous silicon layer, intrinsic amorphous silicon, and an n-type polycrystalline semiconductor such as cadmium sulfide, cadmium zinc sulfide, zinc selenide, gallium phosphide, and gallium nitride. The polycrystalline semiconductor has an energy bandgap greater than that of the amorphous silicon. The solar cell can be provided as a single-junction device or a multijunction device.

A seal assembly comprises a tube rotatable about its longitudinal axis and having two longitudinally spaced flanges projecting radially outwardly from the outer surface thereof. Slidably positioned against one of the flanges is a seal ring, and disposed between this seal ring and the other flange are two rings that are forced apart by springs, one of the latter rings being attached to a flexible wall.

Patent for Excavator

Patent for improvements in sheet-placing machines for pushing and pulling devices to their correct orientation of oil tanks (lines 10-13) roof construction without the possibility of injury to mechanics.

Patent for a wood boring machine "which is especially adapted to bore holes of extreme length in columns or like structural members by cutting away only a portion of the wood forming hole in same" (lines 11-15).

Patent for "a wrench having a sliding jaw and a handle pivoted to the shank in such a manner that a movement of the handle about the work" prevents the jaw to move (lines 13-16).

Patent for a wire stretcher with means to easily adjust a slidable rack bar, including instructions and illustrations.

Patent for vehicle attachment

Patent for a truss with new improvements that provide more comfortability and ease to the wearer.

Patent for a new and improved life boat. This design "consists in providing a steam-launch with a float on each side, secured by suitable strong braces thereto, and to provide said floats with a hand-rail, so that persons can hold onto said rails, and are prevented from being washed off" (lines 17-22).