| 摘要 |
Two metering worms (2, 3) parallel to one another are located in the metering housing (1). The worms are driven via a gear (G) aligned with them and, together with the gear, can be adjusted in rotation about a pivot axis extending in the middle between the two longitudinal axes (A) of the worms. The worms can thus be arranged above or next to one another, as required. <IMAGE>
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