A flexible agricultural implement having a center section pivoted to an elongated draft frame for movement about a transverse axis between alternate lowered working and raised transport positions, a pair of outrigger sections pivotally connected to the ends of the center section for vertical swinging movement when the center section is in the lower working position and forward folding movement when the main frame is in the transport position, and brace means interconnecting each of the outrigger...

A field plotter for conductive sheet analog simulation having constant current sources and calibration circuitry that permits the resistance of the model to be readily accommodated and enables the operator to normalize the contour voltages by establishing the relative contour value of the point on the sheet of highest potential. The sheet is supported on an easel and connections thereto are made from the front with pins that pierce both the sheet and the easel, leads then being attached to the p...

An improved field marker is provided which can be used on an agricultural implement of the type which includes wing folding. The field marker has an arm with a disk mounted on an outer end of the arm and a mounting system at the inner end of the arm for supporting the arm on the implement. The arm includes two portions which fold in a knee type action while the inner portion is folded through 90.degree. so that both portions lie along the side of the implement. The mounting assembly includes a f...

A portable field cooker is taught which enables a user to heat food in an inner vessel thereof while the user remains on the move. The cooker includes a tubular body having an outer housing, and an inner, food containing vessel. Insulation means are provided between the housing and the vessel. A heating chamber is removably secured to the base of the housing for holding a fuel-containment-dish which is removably received in the heating chamber. The fuel-containment-dish is operable to carry an a...

The game utilizes free-standing game pieces to enhance a player's options when there are a less than a desirable number of participants for a traditional field game. Each of the game pieces is composed of a lightweight material for easy positioning. The game pieces are large enough to serve as both a target and an obstacle. The game pieces are also constructed with a flexible support means to both cushion contact with a human player or the game object and lessen the possibility of the game piece...

A wheel supported vehicle having a burning chamber, a draft stack in communication with a forward end of the burning chamber and a burner at a rear of the burning chamber. An air mover means operable to deliver air to the stack and to the burning chamber. As the vehicle is moved forwardly over a field, the heat from burning combustible material at the rearward end of the chamber will be drawn forwardly to evaporate moisture from the combustible material in the path of the chamber so that it will...

The field cultivator provides support for a cross cultivator unit which comprises a rotative drum mounting a plurality of spring-loaded rake members actuated by a cam member fixed to support means. The cam member engages the orbiting rake members to induce alternating priming and raking stroke of the rake members as the drum rotates. Associated wheels of the field cultivator are linked by synchronizing mechanism to assure alignment of the cross cultivator unit and turning control of the unit as ...

A field cultivator equipped with rubber cushions positioned between tool shanks and supporting frames for providing a flexible mounting of the tool shanks permitting the tool shanks to flex in any direction.

In a field chopper or chopper forage harvester, a disc wheel chopper is mounted within a housing for rotation about an axis with an elongated discharge tube opening from the radially outer surface of the housing. A crushing device is located within the discharge tube and is positioned to receive the material carried along the circumferentially inner surface of the housing by the disc wheel. The discharge tube forms an air transport duct located radially inwardly of the crushing device relative t...

A field tester wherein a patient's tested eye is located at the center of an interior hemisphere defining a projection surface and wherein a light spot is projected onto said surface from an eccentric location is disclosed. Optics in common with the projector assure that the off-center projected light is of constant intensity and diameter as selected for each test sequence according to test criteria. Specifically, a filament light source is projected to a collimating lens. The light source is re...