| 摘要 |
A cleaner having a drag blade movable along an alley of a free stall barn to scrape waste materials and liquids from the alley into a gutter located at one end of the alley. A cocking member at the gutter end of the alley raises the blade to its up or raised position. The blade is held with a lock arm in the raised position as the blade returns to its start position. The lock arm is automatically released when the cleaner is in the start position whereby the blade returns to the down scrape position. A timer operable in conjunction with position limit switches controls the sequential operation of the cleaner.
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