Abstract: The motorcycle footrest includes a mounting block and a footrest plate. The mounting block is clamped to a crash bar secured to a motorcycle frame. A pivot pin pivotally connects an end of the footrest plate to the mounting block for pivotal movement about a pivot pin bore axis that extends upwardly and forwardly at an angle of 45° from a horizontal plane. The footrest plate has a first footrest surface and a second footrest surface that are parallel to each other and face in opposite directions. Stop surfaces on the mounting block limit pivotal movement of the footrest plate when the first footrest surface is in a use position and when the second footrest surface is in a use position. At least one aperture passes through the footrest plane and intersects the first and second footrest surfaces. An aperture insert is mounted in the aperture.

Abstract: A method and apparatus for supplying liquid anhydrous ammonia to a pump or other flow control system whereby a separation chamber removes vapor generated by friction in the flow path from a storage tank containing saturated anhydrous ammonia. Additionally, liquid ammonia in the separation chamber creates a static head pressure. The difference in height between the inlet near the top of the separation chamber and the outlet at the bottom causes the static head pressure. The static head assures pure liquid at the bottom since absolute pressure exceeds saturation pressure. As a result, the feed stream to the pump or other flow control system is free of ammonia vapor.

Abstract: The watercraft dry storage assembly includes a cylindrical port bladder and a cylindrical starboard bladder. Both bladders are made from sheet material with a substantially non-stretchable polyester or nylon scrim encased in a poly vinyl chloride plastic, a urethane plastic or a mixture of poly-vinyl chloride and urethane. The bladders are attached to each other. A blower system blows air into the bladders to lift a boat hull out of the water. The blower system also sucks air out of the bladders to lower the boat into the water. A guide system indicates the location of the bladders under the water and guides the bladders as they are inflated. One or more envelopes with open tops are attached to the bladders if required and receive rudders, keels and propellers as they are raised by the bladders. After the open tops are raised above the water, water in the envelopes are pumped out by a pump.

Abstract: A tractor implement draft force control system in which desired and actual implement draft force values are compared to provide a draft force error signal. The system is responsive to the error signal to control the working depth and hence the draft force of the implement. A deadband operates on the error signal to render error signals within the deadband ineffective to control the working depth of the implement and a deadband control means adjusts the width of the deadband so that the deadband width is maintained dependent on components of the error signal above a predetermined frequency. Thus the system can be arranged not to respond to high frequency spurious components of the draft force signal but is able to respond to the lower frequency components of this signal which are representative of the true draft force variations.

Abstract: A system for the control of a fluid flow control valve which controls the supply of fluid to an actuator to control the movement of a component such as a tractor implement hitch in response to a selected operating parameter such as hitch position or draft force. The system enables the desired value of the selected parameter to be set and this desired value is compared with the actual sensed value of the parameter to provide a parameter error signal. A start-up control function is provided to improve the initial speed of response of the system. The start-up control function is arranged on each detection of a parameter error signal to apply a start-up signal to the valve to initiate movement of the component and, if no movement results, to increase the start-up signal until movement of the component is detected whereupon the increase in the start-up signal is stopped and the magnitude of the signal applied to the valve is dependent on the parameter error signal so as to tend to reduce the error signal to zero.

Abstract: A vehicle cab 10 with a window aperture 11 closed by a pivotable glazing panel 12. The window aperture is of vertically tapering form such that the width `W` of the lower regions of the aperture is less than higher regions of the aperture and the glazing panel 12 is of a similar vertically tapering form. A glazing panel mounting structure 13 allows the glazing panel to be moved from a generally upright closed position to a generally horizontal open position 12' by raising the panel in a vertical sense so that the lower narrower portion of the panel is in alignment with a wider higher portion of the aperture and then pivoting the lower narrower portion of the glazing panel about a first generally horizontal axis 21 through the wider higher portion of the aperture to its generally horizontal open position.

Abstract: A transport trailer 10 for moving a combine harvester header including a frame 12, support wheels 14 rotatably journalled on the frame 12, and hitch member 26 on the front end of the frame 12 for attaching the trailer 10 to a draft vehicle. One or more generally vertical guides 28 are attached to the frame 12. A generally horizontal guide 30 is attached to the frame 12 and extends outwardly from each generally vertical guide. A header support structure 32 is supported by a generally vertical guide 28 and a generally horizontal guide 30. Attaching devices 66 are provided for attaching a header to the support structure 32. A hydraulic cylinder 60 is attached to the frame 12 and the header support structure 32 to move the support structure 32 along a vertical guide 28 and simultaneously along a generally horizontal guide 30.

Abstract: A knife drive centrifugal pendulum vibration absorber for an agricultural combine harvester includes a wobble drive assembly 82 with an input drive shaft 132. A flywheel 188 is secured to the wobble drive input drive shaft 132. The flywheel has apertures 192 with walls that are arcs about an axis that are parallel to the axis of rotation of the flywheel 188. A roller 194 is inserted in each aperture 194. The rollers 194 roll along the walls of the apertures 194 in response to changes in the speed of rotation of the flywheel 188 and absorb vibrations induced in the drive shaft 132 by a reciprocating knife assembly 74.

Abstract: A drive direction selection system for a vehicle transmission including a source of electrical power, a first circuit for supplying an electrical signal from the source to a forward drive direction engagement means and a second circuit for supplying an electrical signal from the source to a reverse drive direction engagement means. Forward and reverse drive direction selection pedals are provided which when depressed close forward and reverse direction selector switches in the first and second circuits respectively. First interlock means are arranged to break the first circuit on closing of the reverse direction selector switch and to maintain the first circuit broken until both switches are again simultaneously in their open condition. Second interlock means are arranged to break the second circuit on closing of the forward direction selector switch and to maintain the second circuit broken until both switches are again simultaneously in their open condition.

Abstract: An axial flow combine harvester feed plate for directing crop material from a conveyor into the lower forward portion of an axial flow rotor housing. The feed plate includes surfaces that reduce the overall width of a mat of crop material entering the rotor housing and a surface that guides material upwardly and rearwardly. The surface of the feed plate that guides crop material upwardly and rearwardly directs the mat of crop material into the rotor housing hear the front of the axial flow rotor on one side of the rotor housing. On the other side of the rotor housing, crop material enters the housing some distance rearwardly from the front of the axial flow rotor. This results in a band of crop material engaging the rotor in the rotor housing.

Abstract: The stone trap for a combine harvester 10 includes an elevator to the cylinder 26, a beater assembly 40 rotatably mounted in the elevator and an opening 72 in the floor 38 of the elevator below the opening 72. A box 78 is mounted under the floor 38 to receive material that passes through the opening. Spring steel fingers 94 are bolted to the floor 38 at the forward edge 74 of the opening 72. The free ends of the fingers extend across the opening 72. The upper portion 104 of the rear wall 82 is a support to limit vertical movement of the free ends of the spring steel fingers 94. In operation, the free ends of the spring steel fingers 94 move to the side for the passage of stones driven into the box 78 by the beater assembly 40 and then spring back to hold stones in the box 78.

Abstract: Smoke density measuring apparatus comprising a duct (1) through which the smoke passes, a light source (4) and a photodetector (6) located on opposite sides of the duct adjacent openings (2,3) in the side walls of the duct so that the source (4) directs a beam of light across the duct through the openings to the photodetector (6), a gas supply (10) associated with the openings (2,3) in the side walls of the duct so that gas flows through each opening into the duct, gas flow control valve (13) for varying the rate of flow of gas through said openings, sensor (17) for monitoring the rate of flow of smoke through the duct, and a control circuit (FIG. 4) for controlling the gas flow control valve (13) in a manner dependent on operation of the sensor (17) so that the rate of flow of gas through the openings is reduced when the rate of flow of smoke falls below a predetermined value. The control circuit (FIG.

Abstract: A transmission utilizing a plurality of clutch packs, each of which couples the driving and driven gears of one of a plurality of gear sets, the plurality of clutch packs and gear sets being arranged equal radial distances about the input and output of a transmission with the input gear in constant mesh with the driving gears of the radially arranged gear sets and the output gearing in constant mesh with the driven gears of the gear sets.

Abstract: A vehicle drive arrangement in which a drive shaft (10a) is coupled with a first hollow driven shaft (12) and a second driven shaft (11) within hollow driven shaft (12) by first (14) and second (13) coaxial clutches respectively clutch (13) which is adjacent flywheel (10) is operated by a force transmitting path in the form of pins (17) located outside both driven shafts and passing axially through the central portion (24) of clutch (14). This produces a more compact arrangement since the force transmitting path for the operation of clutch (13) does not pass around the outer periphery of clutch (14).

Abstract: A vehicle transmission having a housing within which is disposed a multi-ratio main change speed gear set (X) and a first range change gear set (Z) in series and in which the speed and range changes are effected by selector forks (100, 101, 102) which are mounted on and axially movable relative to a single selector fork rail (105) which is held stationary (108) relative to the housing. Additionally selector forks (103, 104) for a second range gear set (Y) and a creeper gear facility (C) may be mounted on and movable relative to the same selector fork rail (105). The housing is also provided with an access aperture (132) and the selector fork rail (105) can be released and slid axially within the housing to allow removal of the selector forks (100, 101, 102, 103) one by one from one end of the rail (105) via the aperture (132).

Abstract: In an internal combustion engine comprising a piston (1) having a combustion bowl (3) recessed in the crown of the piston and a plurality of arcuate recesses (7) formed in the side wall (6) of the bowl spaced apart by arcuate intermediate portions of the side wall, swirl means to cause the inlet air to rotate about the axis of the bowl, and fuel injection means (2) that serves to direct a plurality of fuel jets radially of the bowl each towards a corresponding recess (7), the piston is characterized in that the ratio of the maximum distance by which each recess (7) extends radially into the side wall (6) compared with the radius of the side wall (6), lies within the range 0.10 to 0.20.

Abstract: A transmission ratio selector mechanism having an upper manually operable gear lever (120) which is mounted (139, 250) intermediate its ends for pivoting about two perpendicular axes and a lower lever member (134) which is pivoted in a fixed mount (136) at its lower end (135) and is connected at its upper end (137) with the lower end (138) of the gear lever (120). The lower lever (134) is interconnected (133) intermediate its ends with a ratio selector shaft (112) whose longitudinal axis passes through the fixed mount (136). Pivoting of the gear lever (120) about one of the perpendicular axis causes axial displacement (W1, W2) of the selector shaft (112) in a direction parallel to its longitudinal axis and pivoting of the gear lever about the other perpendicular axis causes turning of the selector shaft about its longitudinal axis to move one or more ratio selector forks (101, 102).

Abstract: A machine cover comprising a main body 1 having two or more apertures 6 closed by interchangeable inserts 8,9, at least one of which incorporates an inlet duct 12 so that this inlet duct can be located in one of two or more different positions in the cover. A pair of interchangeable inserts for an adjacent pair of apertures may be formed in a single component 8 that is reversible end-to-end and which cooperates with both apertures 6 so that the filler duct 11 is aligned with either one while the other aperture is closed. One or more blanking inserts are provided to close each of the other apertures, one blanking component 9 being provided for each pair of adjacent apertures if desired. Alternatively, the insert 18 incorporating the filler duct 11 may be insertable in each aperture 16 in each of two or more different orientations in each of which the filler duct is located in a different position.