摘要:
A landfill compactor vehicle comprises two forward wheels and two rear wheels, each wheel having on its rim teeth having a substantially arrowhead configuration, when viewed in plan, each tooth having at least a slicing portion and a tamping portion, the teeth are arranged in a twin helical turbine pattern around the wheel rim. The disposition of the teeth pattern and the attitude of the teeth for each wheel is different to that of the other three wheels and this taken with the aforesaid arrowhead configuration of the teeth ensures a mincing action on refuse, waste and soil over which such a landfill compactor vehicle is driven.
摘要:
An amphibious vehicle including an undercarriage having pairs of front and rear primary wheels, a vehicle body mounted on the undercarriage, a propulsion device operable while the vehicle is afloat and including drive wheel means mounted on arms pivotally secured to the rear of the vehicle so that the height of the drive wheel means may be adjusted by pivoting the arms about a horizontal axis, the drive wheel means having a ribbed pattern thereon.
摘要:
A roll having a plurality of grooves in the exterior surface thereof, said surface consisting of a nonwoven mat wrapping said roll and bonded with a thermosetting resin. Preferred mats for the present invention are acrylic nonwoven mats. The preferred thermosetting resin is an epoxy resin.