This invention discloses uninterrupted shifting in transmissions with the use of controlled rotation to achieve desired profile for input to output ratio, thereby eliminating synchronized clutch. Controlled rotation achieved using non-circular gears or Geneva pin and slot wheel mechanism with a customized path for the slot, is used to achieve multiple speed/infinitely variable transmission ratios and/or to transition from one transmission ratio to another. The transition happens over multiple rotations of the input making it highly suited for high torque applications. Since it is not using sprag or one way bearing engine breaking can be achieved. Infinitely Variable Transmission offers steady and uniform output for a steady and uniform input. With co-axial input and output, using planetary gear system, the output can be made continuous from forward to reverse. Multi-Speed uninterrupted shifting is achieved without the need for synchronizers and using a dog clutch or similar device.

The invention relates to a solar plant (1) having at least one pivotable module table (2a, 2b, 2c) which supports at least one photovoltaic solar module (3), preferably multiple photovoltaic solar modules (3), and is coupled in such a manner to at least one gear element (4) pivotable about an axis (A) that pivoting the gear element (4) causes the module table (2a to 2c) to be pivoted so that the solar modules (3) track the motion of the sun, the gear element (4) being driven and thus pivoted by an electrically driven drive shaft (5), at least one actuation element (8) being integrated in the drive shaft (5), the gear element (4) being both driven and blocked by the actuation element (8), the actuation element (8) engaging into the toothing (11) of the gear element (4) for driving or blocking the gear element (4).

The invention relates to a solar plant (1) having at least one pivotable module table (2a, 2b, 2c) which supports at least one photovoltaic solar module (3), preferably multiple photovoltaic solar modules (3), and is coupled in such a manner to at least one gear element (4) pivotable about an axis (A) that pivoting the gear element (4) causes the module table (2a to 2c) to be pivoted so that the solar modules (3) track the motion of the sun, the gear element (4) being driven and thus pivoted by an electrically driven drive shaft (5), at least one actuation element (8) being integrated in the drive shaft (5), the gear element (4) being both driven and blocked by the actuation element (8), the actuation element (8) engaging into the toothing (11) of the gear element (4) for driving or blocking the gear element (4).

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

A manifold has a frame and a plurality of valves supported by the frame, each valve having a cross gear that includes four semicircular recesses and four arms that terminate in pointed tips, and wherein the tips are non-jamming rubber tips. The manifold also has a screw drive and a splined rotatable shaft parallel to the screw drive. The manifold further includes a slider driven by the screw drive over the splined rotatable shaft. The slider includes an actuator that protrudes from the slider to engage one of the cross gears to actuate a respective one of the plurality of valves.

A manifold has a frame and a plurality of valves supported by the frame, each valve having a cross gear that includes four semicircular recesses and four arms that terminate in pointed tips, and wherein the tips are non-jamming rubber tips. The manifold also has a screw drive and a splined rotatable shaft parallel to the screw drive. The manifold further includes a slider driven by the screw drive over the splined rotatable shaft. The slider includes an actuator that protrudes from the slider to engage one of the cross gears to actuate a respective one of the plurality of valves.

A seed placement unit including a body, a seed channel and a placement chamber, the seed channel extending from a first end, open to the exterior of the body for seed input, to a second end, open to the exterior of the body adjoining the placement chamber, for seed output. A guidance wheel intersects the seed channel and has at least one opening to receive a seed within the seed channel and carry it through the seed channel as the guidance wheel is rotated by a Geneva gear or other suitable mechanism. A closing wheel mechanism in the placement chamber rotates in synchronism with the guidance wheel to receive a seed from the seed channel and transfer the seed to the seed output opening. The seed placement unit may be carried on an agricultural vehicle or other mobile conveyance.

Detailed are valve assemblies principally for use as part of in-floor cleaning systems for swimming pools. The assemblies may use mechanisms for converting continuous rotation into discontinuous rotation, changing the timing of water distribution to different outlet of the assemblies. One such mechanism includes both an impeller, whose blades are rotated continuously by impingement of pressurized water, and a Geneva drive, whose driven wheel is rotated discontinuously by one or more associated drive wheels.

Detailed are valve assemblies principally for use as part of in-floor cleaning systems for swimming pools. The assemblies may use mechanisms for converting continuous rotation into discontinuous rotation, changing the timing of water distribution to different outlet of the assemblies. One such mechanism includes both an impeller, whose blades are rotated continuously by impingement of pressurized water, and a Geneva drive, whose driven wheel is rotated discontinuously by one or more associated drive wheels.