| 摘要 |
Aparatus for cutting out the vent of a fowl, having at least one cutting means with a hollow cylindrical knife rotating about a center pin, which is axially reciprocable and rotatable relative to the knife, and a helical hook concentrically mounted within the knife and rigidly coupled with the pin; the relative movement of the center pin and the knife being controlled in such manner, that the center pin is first inserted into the vent opening of the fowl and than rotated over a limited angle, so that the hook grips the vent in a corkscrew-like manner, after which the hook holding the vent and the knife are moved towards each other, so that the vent is cut out, and finally the knife and the pin are withdrawn and the cut out vent is released by rotating the hook in the opposite direction while restraining the vent.
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