Abstract: A grain bin of a type having side walls and a perforated floor therein. A drying fan is connected to the bin below the perforated floor and a roof is rotatably attached to the grain bin. The roof has vanes thereon for catching wind and causing circulation of air through the bin, thereby causing ventilation of the bin. Means for rotating the roof when the wind is not blowing is also provided.

Abstract: Apparatus for loading and unloading objects such as boats to and from elevated surfaces such as the tops of vehicles. Spring biased structures provide for allowing the object to lie substantially horizontally on top of a vehicle and for causing one end of the object to be elevated for unloading purposes when desired. The spring biased structure also prevents the object from pivoting too quickly during the loading process and thereby causing an undesirable impact between the vehicle top and the object during this loading process. A winch is provided for pulling the object onto the vehicle top or for allowing a controlled unloading by utilizing a gravity force limited by the winch. Rollers are clamped on one end of the object and a rod pivotally attached to the vehicle causes the roller end of the object to be spaced sufficiently from the vehicle when the rollers are near the ground to thereby aid in the controlled handling of the object.

Abstract: A clamp adapted particularly for use with automobile exhaust systems formed completely of wire or small diameter rod stock. The clamp is comprised of three elements, the first member being a wire or rod having one end thereof formed in a loop along the first axis and the other end formed in a loop about a second axis perpendicular to the first axis. The second member has a loop formed on one end thereof which extends through the first loop on the first axis thereby forming a hinge structure and the other end of the second member is straight and is threaded and adapted to be selectively receivable through the second loop of the first member. The intermediate portions of the first and second members are partially circular for the purpose of engaging circular portions of exhaust pipes or the like. A conventional nut is provided for being threadedly received on the straight threaded portion of the second member for tightening the first and second members together with respect to each other.

Abstract: A frog for a musical instrument bow for clamping the hair of the bow, such that the hair can be clamped to the frog prior to being cut to the proper length, and with the hair being cut while clamped, either before or after the frog is adjusted lengthwise of the bow for proper tautness of the hair.

Abstract: A round bale forming machine having a drum for picking up and rolling the windrowed hay into a round bale, at least one roller movably mounted in the machine for compacting and forming the bale, and a laterally mounted comb disposed behind the drum for picking up hay missed by the drum and for depositing that hay on the drum wherein it is placed onto the forming bale.

Abstract: An object loading and unloading apparatus of a type having a framework adapted to be connected to a truck bed. A track is connected to the framework and has a plurality of rollers located thereon. A frame having forklift members connected perpendicularly to the bottom thereof is movably mounted on the track so that in one position the forklift members can be driven under an object to be transported. A winch is connected to the framework and has a cable which connects to a pulley on top of the frame for selectively pivoting the frame and forklift members and for pulling such frame and thereby an object to be loaded onto the track and thereby onto a truckbed. The winch is further utilized for unloading by releasing the frame and allowing it to slide down the track by gravity and then to pivot, also by the force of gravity, into an unloading position.

Abstract: A valve of a type for use particularly in animal waterers. A valve body having a passageway extending therethrough has a valve stem disposed in the passageway. The valve stem has an enlarged portion on one end thereof having longitudinal slots therein and a valve head on the other end thereof for cooperation with a valve seat located at one end of the passageway of the valve body. A screen having perforate sides and an imperforate end is connected to the valve body and encompasses the valve head. A cylindrically shaped member is positioned inside of the screen and is sealed at one end thereof to the valve body and at the other end to the imperforate end of the screen. A single small hole passes through the cylindrical member at a place on the cylinder whereby the valve head must move past it during opening and closing thereof to thereby keep the opening from being closed due to the build-up of foreign particles or mineral deposits thereon.

Abstract: Threads for a fastener of a type having an opening in one member with internal helically-shaped threads around the inner periphery thereof, and another member having helical threads around the outer periphery of a cylindrical portion thereof, wherein the cylindrical portion is adapted to be placed in the opening by relative rotation of the two threaded members. The internal threads of the opening and the external threads of the cylindrical portion being substantially identical except that the helix or lead angle of one of the thread formations is 39 to 85 percent of the helix angle of the other thread formation to thereby cause a higher prevailing torque for the purpose of impeding relative movement of the threaded members when the threads are engaged. This invention is particularly useful for the construction of what is commonly referred to as lock nuts.

Abstract: A cultivator apparatus attached to a draw bar hitched to a tractor and having a tool bar attached to the draw bar and movable therewith. A cultivating mechanism is attached to the tool bar and is movable between positions of engagement and disengagement with the ground when the tool bar is moved. A plurality of cultivating units comprise the cultivating mechanism and are independently movable about the tool bar. A lateral support mechanism is comprised of gauge wheels mounted intermediate the ends of each of the cultivating units. Each gauge wheel is laterally offset with respect to the cultivating unit to which it is attached.

Abstract: An articulated tractor-type vehicle having a supporting frame including a pivotable boom to which a steerable wheel is mounted. The supporting frame carries an adjustably positionable tamping unit and an adjustably positionable trench filling unit such as a drag conveyor to provide simultaneous filling and tamping of a trench. A novel reciprocating tamping unit having increased effectiveness and reduced shock transmission is described.

Abstract: A head piece, for grasping by a musician, having a stem joined thereto, the stem having elongated teeth which are formed thereon and disposed radially with respect to the longitudinal axis of the stem and head piece. A ratchet body having a bore therethrough is placed over a spindle, and the spindle is threaded into the head piece such that the spindle and head piece are rotatable as a unit. The ratchet body has elongated teeth formed thereon which are radially disposed about the bore of the ratchet body and which mesh with the teeth formed on the stem. The meshing teeth allow rotation of the head piece and spindle in one direction only with respect to the ratchet body, thereby causing a string of a musical instrument attached to the spindle to be wound about the spindle and secured in a taut condition.

Abstract: A grain bin having a roof, a perforated floor, a grain storage chamber above the floor, a plenum chamber below the floor and a fan for forcing air into the plenum chamber, through the floor and ultimately through the grain storage chamber. A ventilation structure is attached to the roof of the bin in direct communication with the top of the grain storage chamber and has a plurality of turbine shaped blades fixed together and mounted for free-spinning rotation with respect to the roof.

Abstract: A self propelled feed apparatus for supplying feed to a plurality of feed receptacles and including a conveying unit having a frame, a bin mounted on the frame, a plurality of wheels rotatably supporting the frame, an auger mounted in the bin for conveying feed, and an adjustable chute mounted on the frame for delivering feed from the auger to the feed receptacle; a propulsion and steering unit; and a power unit.

Abstract: An amusement game device played by two people having an arcuate playing surface supported above the surface of the ground by a support system, a plurality of holes formed in the playing surface at opposite lower ends thereof, a flipper device movably mounted on each end proximate each set of holes for propelling a ball from the lower end over the top of the surface and to the opposite lower end with the object of causing the ball to enter a hole on the opponent's end of the board, a return ball system mounted under the playing surface and communicable with the holes on each end and operable at a predetermined time to return one half of the total number of balls to each end.

Abstract: A composition, useful for stabilizing soil, comprised of lignin sulfonate and a combination of dispersants, and a method of stabilizing soil utilizing the composition. The composition and method are particularly useful in preparing a road base.

Abstract: An airplane fuselage of a type having a concave bottom for providing more lift and control at low speeds and with two strut members extending along and on each side of the concave bottom for providing skids for the purpose of emergency landings. The two bottom strut members are connected at the forward end thereof but are spaced apart at the rear end thereof to prevent an aircraft from turning to one side or the other due to direct contact with the ground or a body of water. A top and central strut member is also provided on the fuselage. Relatively short wings are attached to the fuselage portion, all parts of which are located above the two lower strut members. The landing gear is located in the wing structure.

Abstract: A plurality of item discharge units disposed in side-by-side fashion within a vending machine, each unit including a tray with a selectively driven helix rotatably disposed therein. A divider member is mounted completely within the helix and extends along the length of the helix and upon the divider member and extends downwardly and at an angle therefrom on both sides of the divider to form spaces triangular in cross section between the divider and the walls of the tray.

Abstract: A valve of a type used for preventing fuel line leaks which occur when automobiles or trucks roll over. The valve is used in conjunction with a vehicle fuel system, preferably in a vapor vent line which vents fuel vapors from the fuel tank, so that if the vehicle rolls over or tilts in one direction by more than a predetermined amount, the valve will close. A ball disposed in a conical recess within the valve body serves as a gravity actuator for a reciprocating valve member. A novel structure of a valve member of a particular configuration in combination with the novel configuration of the interior of the valve housing allows the valve member to be self-cleaning due to vibrations caused by vehicular travel; and yet, the valve provides a positive sealing function upon tipping or tilting thereof by a predetermined amount or more.

Abstract: A structure having a movable roof formed in two sections which sections are pivotally secured to the side walls by hinge elements and to the front and rear walls by control arms, wherein the roof panels are pivotal from a closed, horizontal position to an open vertical position disposed alongside the side walls.

Abstract: A method is disclosed for a cascade control of a dynamic compressor to maintain a constant mass flow rate to a process. The method consists of a successive junction of control loops for controlling the speed of rotation, the pressure in the delivery, and the mass flow rate; the output signal of each outer loop being the input signal for the inner loop and each of the loops containing a compensating element to reduce the effects of large time constants of all previous loops.An automatic control system based on using the above method, distinguished by its great static and dynamic precision in maintaining a controlled parameter, and by the high reliability of protection of the compressor from surge, and protection from a dangerous increase of the speed of rotation and of a dangerous increase of the discharge pressure.