초록 ▼

A choke plate or damper is removably mounted in the bottom of the broadcast spreader hopper. The choke plate is formed with three apertures, each of which is surrounded by a boss which, with the choke plate in an operative position, projects through a material discharge outlet in the hopper bottom f

A choke plate or damper is removably mounted in the bottom of the broadcast spreader hopper. The choke plate is formed with three apertures, each of which is surrounded by a boss which, with the choke plate in an operative position, projects through a material discharge outlet in the hopper bottom for sliding engagement with a shutter plate slidably mounted on a rear underside portion of the hopper. A deflector is slidably mounted on a forward underside portion of the hopper and is formed with a rearwardly projecting and downwardly inclined portion that, as the deflector is adjusted, moves between positions of greater and lesser interposition between the hopper outlet and a rotary impeller disposed therebelow.

대표청구항 ▼

[ I claim:] [1.] Hopper discharge apparatus for a broadcast spreader equipped with a hopper stationarily mounted to the broadcast spreader, a shutter plate slidably mounted on an underside of the hopper and a rotary impeller disposed below and in spaced relation to the hopper and the shutter plate,

[ I claim:] [1.] Hopper discharge apparatus for a broadcast spreader equipped with a hopper stationarily mounted to the broadcast spreader, a shutter plate slidably mounted on an underside of the hopper and a rotary impeller disposed below and in spaced relation to the hopper and the shutter plate, said hopper discharge apparatus comprising:an optional choke plate provided with a first discharge area defined by at least one aperture disposed inwardly of an outer perimeter of the choke plate;the hopper being provided with a second discharge area exceeding the first discharge area in size and defined by at least one outlet; andmeans for removably mounting the choke plate in an operative position within the hopper, said means enabling the first discharge area on the choke plate to be aligned with said at least one outlet in the hopper.