Abstract: A second tree data structure (“second tree”) is formed from a first tree data structure (“first tree”). The first tree relates to a displayable page. The second tree relates to a displayable wireframe of the page. A method comprises: for each node in the first tree, determining if the node meets at least one predetermined node type rule (B, 312); and based at least on a result of the determining, including the node, in the second tree (E, 328, 330).

Abstract: A variable area flow meter has a magnet carried by a piston which is moved to a position representing fluid flow. An array of magnetoresistive bridge sensors adjacent the path of magnet movement senses the magnet position. The bridges are unbalanced by the magnet field. The analog unbalance signals are read and processed in digital form to develop a flow signal. The flow meter circuits are powered from a 4–20 MA current loop or a remote power supply. Each bridge sensor is powered only when the bridge unbalance signal is being read, to minimize the power requirement.

Abstract: The present invention relates to a seat mount assembly for a vehicle having a seat, such as a tractor. The seat mount assembly, in one embodiment, includes a seat support, one or more seat securing members connected to the seat and movably engaged with the seat support and at least one seat adjust handle. The seat mount assembly enables users to conveniently change the seat position while remaining seated.

Abstract: The present invention relates to a seat mount assembly for a vehicle having a seat, such as a tractor. The seat mount assembly, in one embodiment, includes a seat support, one or more seat securing members connected to the seat and movably engaged with the seat support and at least one seat adjust handle. The seat mount assembly enables users to conveniently change the seat position while remaining seated.

Abstract: A pipeline padding machine for use with a motorized carrier is mounted on a flat bed trailer adapted to be hitched to the carrier. Collector apparatus mounted beneath the screening apparatus receives the earth from a discharge at the bottom of the screening apparatus and conveys it to its discharge end which is located laterally of the carrier-trailer when the screening apparatus is in a transverse operational mode. A delivery apparatus pivotally mounted at a receiving end beneath the discharge end of the collector apparatus may in turn receive the earth discharged for delivery at greater distances from the screening apparatus. This delivery apparatus may be supported at its discharge end from the carrier or the trailer so that its discharge end may be located laterally of the carrier-trailer at a selected distance from the carrier-trailer within a variable range of distances.

Abstract: A padding machine is provided for angularly variable attachment to a mobile ground carrier having a hopper into which soil is placed, a vibratory feeder and screen receiving soil from the hopper, a chute receiving screened soil from the vibratory screen and feeder to deliver the same as padding on a pipeline within a ditch and a power source driving the vibratory feeder and screen.

Abstract: A padding machine is provided for angularly variable attachment to a mobile ground carrier having a hopper into which soil is placed, a vibratory feeder and screen receiving soil from the hopper, a chute receiving screened soil from the vibratory screen and feeder to deliver the same as padding on a pipeline within a ditch and a power source driving he vibratory feeder and screen.