Abstract: A crank transmission having a crankshaft for connection to at least one foot or hand crank and at least one gear wheel driven by means of the crankshaft (5) is proposed. A coupling unit is provided between the crankshaft and the gear wheel. Under load, the coupling unit has at least temporarily an angular offset between a crank-side receiving region and an output region connected to the gear wheel for receiving and outputting the torque generated via the crank.

Abstract: A spectrometric measuring head for harvesting machines and other agricultural equipment comprises a housing with a window, in which a light source, a spectrometer arrangement and at least two standards for internal recalibration are provided. The standards can optionally be swiveled in the optical path of the measuring head such that the entire measuring light coming from the light source is used for recalibration. A processor that captures and processes the measured values and an interface to a bus system are arranged in the housing.

Abstract: A spectrometric measuring head for harvesting machines and other agricultural equipment comprises a housing with a window, in which a light source, a spectrometer arrangement and at least two standards for internal recalibration are provided. The standards can optionally be swiveled in the optical path of the measuring head such that the entire measuring light coming from the light source is used for recalibration. A processor that captures and processes the measured values and an interface to a bus system are arranged in the housing.

Abstract: The feeding mechanism serves to intermittently feed stock to a processing machine and comprises a rocker lever having at its outer end an arcuate surface shaped according to an arc of a circle, crank drive comprising a crank which is operatively connected to said rocker lever, said crank drive being operable to impart an oscillation to said rocker lever, a clamping roller adapted to cooperate with said arcuate surface and forming a feeding clamp therewith, a retaining clamp for holding said stock in position, and control means for cyclically opening and closing said feeding clamp and retaining clamp in alternation.

Abstract: A machine for processing stock by using aram is disclosed. The machine has a frame structure with a ram-guiding frame therein. The ram-guiding frame is symmetrical in cross-section and has forward and rear members which leave free a first space through which tools are accessible. The members have end side portions which leave free a second space for feeding stock. Vertically adjustable guides for guiding the ram are detachably connected between the ram and the end side portions of the forward and rear members.

Abstract: The feeding mechanism serves to intermittently feed stock to a processing machine and comprises a rocker lever having at its outer end a gear segment, a crank drive comprising a crank which is operatively connected to said rocker lever, said crank drive being operable to impart an oscillation to said rocker lever, a feeding clamp comprising first and second, reversibly rotatable, toothed feed rollers arranged to mesh with each other when said feeding clamp is closed, said first feed roller being in mesh with said gear segment, a retaining clamp for holding said stock in position, and a cam operated control linkage for cyclically opening and closing said feeding clamp and retaining clamp in alternation.