Abstract: A wheel grid includes a crossbar configured to be coupled to a boom of a tow vehicle, the crossbar extending in a lateral direction from a centerline to a distal tip, and an L-arm rotatably coupled to the crossbar at a proximal end of the L-arm and configured to rotate about a rotation axis from an engaged position to a stowed position. As the L-arm rotates from the engaged position to the stowed position, the L-arm intersects with a line parallel to the rotation axis and passing through the distal tip of the crossbar. In the stowed position, an entirety of the L-arm is positioned closer than the distal tip of the crossbar to the centerline of the crossbar in the lateral direction.

Abstract: A wheel grid includes a crossbar configured to be coupled to a boom of a tow vehicle and including a distal tip. The wheel grid further includes an L-arm rotatably coupled to the crossbar at a proximal end of the L-arm and configured to rotate from an engaged position to a stowed position. As the L-arm rotates from the engaged position to the stowed position, a distal portion of the L-arm intersects with a vertical line passing through the respective left or right distal tip of the crossbar. In the stowed position, the distal portion of the L-arm is positioned laterally inward relative to the distal tip of the crossbar.

Abstract: A wheel grid includes a crossbar configured to be coupled to a boom of a tow vehicle and including a distal tip. The wheel grid further includes an L-arm rotatably coupled to the crossbar at a proximal end of the L-arm and configured to rotate from an engaged position to a stowed position. As the L-arm rotates from the engaged position to the stowed position, a distal portion of the L-arm intersects with a vertical line passing through the respective left or right distal tip of the crossbar. In the stowed position, the distal portion of the L-arm is positioned laterally inward relative to the distal tip of the crossbar.

Abstract: A wrecker vehicle includes a chassis, a boom coupled with the chassis, and a hoist device coupled with the chassis, the hoist device configured to engage a line to position a piece of equipment relative to the chassis. The vehicle may also include a controller configured to receive rigging setup data. The controller may further determine a first utilization state, wherein the first utilization state is a line load utilization state of the line, and a second utilization state, wherein the second utilization state is a first block load utilization state of a first sheave block. Further, the controller may be configured to determine, based on a comparison of the first utilization state to a first threshold and the second utilization state to a second threshold, a rigging setup state, and provide an indication of the rigging setup state.

Abstract: A wheel grid includes a crossbar configured to be coupled to a main boom of a wheel lift tow vehicle; two L-arms, each coupled to the crossbar at a respective pivot point and including an extension member and a wheel brace member; and a crossbar end coupled to each end of the crossbar and including a cantilevered portion, the crossbar ends each configured to engage a tire of a towed vehicle. The L-arms are configured to rotate into a stowed position in which each L arm is positioned under one of the cantilevered portions.

Abstract: A prime mover arrangement includes a prime mover (23) including a first shaft (25) driven by the prime mover, a second shaft (27), and a speed and torque manipulator (29) connected to the first shaft (25) and to the second shaft (27), the speed and torque manipulator permitting manipulation between at least one non-one-to-one ratio or a plurality of different input/output ratios of speeds and torques input by the first shaft and output to the second shaft. A method is also disclosed.

Abstract: A prime mover arrangement includes a prime mover (23) including a first shaft (25) driven by the prime mover, a second shaft (27), and a speed and torque manipulator (29) connected to the first shaft (25) and to the second shaft (27), the speed and torque manipulator permitting manipulation between at least one non-one-to-one ratio or a plurality of different input/output ratios of speeds and torques input by the first shaft and output to the second shaft. A method is also disclosed.

Abstract: Heat is transferred away from the rollers and base of a printer heater by introducing chilled water into the rollers and the base. The paper upon which print has been applied remains at an elevated temperature so that the drying of the print is not delayed. A conventional roller is modified by having an annular cavity formed in its interior and providing fluid communication between the cavity and a chiller. A conventional base is modified by the addition of a serpentine passageway formed in its interior and providing fluid communication between the passageway and the chiller. Cold water provided by the chiller to the roller prevents breaking down of oil in the bearings of the roller. Cold water provided by the chiller to the base carries the heat from the base, increasing the safety of the workplace and extending the working lifetime of the base and its related parts.

Abstract: A feeder for sheets of material has belts for driving sheets through the feeder, and a gate above the belts to hold back the stack of sheets to be fed. The gate is elliptical in side elevational view and flat in front and rear elevational views. The major axis of the ellipse is disposed at an acute angle to the feed path, so sheets waiting to be fed engage the large-radius portion of the ellipse and are shingled just before reaching the position to be fed. The wide, flat surface has O-rings of rubber or the like to provide a high coefficient of friction for retarding the stack of sheets to be fed. A sensor detects a sheet that has been fed, and stops the feeder, so the feeder can be used as an on-demand feeder.

Abstract: A composition for use in forming an interpenetrating polymer network includes a blocked urethane prepolymer, a polyol, an epoxy resin and an epoxy catalyzing agent.