Abstract: A hydromechanical variable speed transmission (1) including outer and inner differential gear trains each having a carrier carrying planet pinions meshing with two coaxial side gears, the side gears of the outer differential gear train being ring gears one of which is an input ring gear (11) and the other (52) of which rotatably drives the planet pinion carrier of the inner differential gear train, the side gears of the inner differential gear train respectively rotatably driving two coaxial output shafts which extend axially outwards through the ring gears (11, 52) of the outer differential gear train, the planet pinion carrier (14) of the outer differential gear train rotatably driving a hydraulic motor (2) which is fluidly coupled by a hydraulic circuit to rotatably drive a hydraulic pump (3) having a pump control for changing the displacement of the hydraulic pump (3) in response to rotation thereof, wherein the pump control is fixed from rotation to thereby isolate the input ring gear (11) from torque re

Abstract: A power dividing device for a vehicle transmission to provide two rotating outputs having variable relative speed of rotation from a single rotatable input. The device includes a first rotational element and a second rotational element housed within the first element and rotatable about the same axis as the second rotational output. A first fluid chamber associated with the first rotational element and first regulating means to varies the volume of the first chamber in response to rotation of the first rotational element. A second fluid chamber associated with the second rotational element and second regulating means likewise varies the volume to the flow between the first and second chambers the relative timing of variation of the volumes of the first and second chambers determines the speed of the second rotational element in response to rotation of the first rotational element.

Abstract: Transplanting apparatus for transplanting seedlings from a tray that has a plurality of seedling retaining cells into a prepared ground planting position, the apparatus having a tray holder, a seedling ejector for removing one or more seedlings from the seedling retaining cells, a seedling delivery conveyor for receiving a seedling ejected from the tray and delivering same via a travel path to a ground planting preparation device arranged to at least partly prepare the ground planting position, a seedling holder associated with the ground planting preparation device arranged to hold a seedling delivered by the seedling delivery apparatus, a plant plug remover arranged between the seedling ejector and the seedling holder to remove any plant plug not containing a seedling viable for planting from the travel path prior to reaching the seedling holder, and a seedling planter for moving a seedling from the seedling holder to the prepared ground planting position in response to the transplanting apparatus having tr

Abstract: The present specification discloses apparatus for transplanting seedlings (24) from a tray (6) that has a plurality of seedling retaining cells (34), into a prepared ground planting position, the apparatus having tray holding means (1), seedling eject means (15, 16, 17) for removing one or more seedlings (24) from the seedling retaining cells (34), seedling delivery means (26, 27, 29) for receiving a seedling (24) ejected from the tray (6) and delivering same via a travel path to a ground planting preparation device (78) arranged to at least partly prepare said ground planting position, seedling holding means (100) associated with the ground planting preparation device arranged to hold a seedling delivered by said seedling delivery means (26, 27, 29), plant plug removal means (82, 83, 85) arranged between said seedling eject means (15, 16, 17) and said seedling holding means (100) to remove any plant plug (84) not containing a seedling viable for planting from said travel path prior to reaching said seedling

Abstract: The present specification discloses apparatus for transplanting seedlings (24) from a tray (6) that has a plurality of seedling retaining cells (34), into a prepared ground planting position, the apparatus having tray holding means (1), seedling eject means (15, 16, 17) for removing one or more seedlings (24) from the seedling retaining cells (34), seedling delivery means (26, 27, 29) for receiving a seedling (24) ejected from the tray (6) and delivering same via a travel path to a ground planting preparation device (78) arranged to at least partly prepare said ground planting position, seedling holding means (100) associated with the ground planting preparation device arranged to hold a seedling delivered by said seedling delivery means (26, 27, 29), plant plug removal means (82, 83, 85) arranged between said seedling eject means (15, 16, 17) and said seedling holding means (100) to remove any plant plug (84) not containing a seedling viable for planting from said travel path prior to reaching said seedling

Abstract: The present invention relates to an improved nursery tray and apparatus for handling such a nursery tray during propagating and growing periods, the tray (10) comprising a plurality of cells (18) in a predetermined array having two opposed side walls (14, 15) and two opposed end walls (16, 17), the tray being characterized by a plurality of spaced slots (28) located in opposed walls (14, 15, 16, 17) with each slot (28) being aligned with a space between two of said cells (18) and each slot (28) having an open end at a lower edge of the walls (14, 15, 16, 17) in which the slots are formed, the apparatus for handling such trays being characterized by support members (40) interconnected by chains (46) into an endless configuration capable of being driven by drive means (42) such that the support members move along guideways (41), the support members (40) each having at least one elevated tray engagement part (45) configured to engage in tray edge formations such as the slots (28) to support the trays in a manner

Abstract: A vehicle power transmission and a vehicle powertrain capable of being continuously controlled over a predetermined range of operation. The powertrain includes two power units, the power transmission unit and a control device for receiving command input and determining performance parameters associated with the operation of the powertrain, an outer transmission and an inner differential gear assembly. The main transmission has two rotatable inputs, each operable connected to one power unit for receiving rotational power and operably connected to a rotatable output so that the rotational speed of the output can vary in proportion to the algebraic mean of the speeds of ratios of the two inputs. The differential gear assembly is arranged internally of the main transmission with a rotatable input operably connected to two differentially rotatable outputs. The output of the main transmission is operably connected to the input of the differential gear assembly.

Abstract: The present invention relates to an automatic transplanter. More specifically, the invention relates to a mechanism for transferring seedlings or plants from plant trays or flats in which they have been grown or propagated onto a conveyor for delivering to means for effecting transplanting into a field.

Abstract: A transplanter for transferring seedlings from plant trays to a planting position includes a special plant tray having a series of longitudinal indexing grooves and a transverse alignment groove for engagement with indexing rods and support rings that are joined together to form an indexing drum. The indexing drum is mounted adjacent a loading frame for guiding the plant trays into position for ejection of the plant seedlings and includes an integrally internally mounted plug ejector subassembly which moves relative to the indexing drum at each of a number of successive indexing positions of the drum for ejection of seedlings from the plant tray. The indexing grooves and transverse alignment groove on the plant tray provide datum surfaces for ensuring accurate positioning of the plug ejector subassembly relative to the seedlings in the plant tray.