| 摘要 |
Mustard, ketchup and similar pasty matter is metered out and served from a dispenser, including a container and an attachable outlet pipe of flexible material enclosing a valve member. The container has one plane end face, permitting it to stand upright during storage, and an opposite, truncated end face, to which the outlet pipe is attached at a threaded portion. A restriction at the truncated end face defines a seat for a valve member, which includes an upper big body and a lower small body interconnected by a rod. The length of this rod is selected so the big body is held mainly inside the threaded container portion, but lower than its seat when the small body rests against the lower end of the outlet pipe.
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