FIELD: automation and instrument making. SUBSTANCE: device has slot hole 7 (8) in front wall of housing 4. Sealing rod 34 (32) which is mounted in corresponding recess 31 (30) has cylindrical operating surface and is oriented along upper longer side of slot hole 4. Rod 34 (32) can be spring-loaded in the direction of slot hole 7 (8). Otherwise it can be made from material that has enough weight in order to engage with opposite side. In addition cylindrical rod 35 (33) can be mounted for free rotation in corresponding recess. Sealing rod 34 (32) as well as side opposite to it can be covered with elastomeric cover. EFFECT: increased reliability, decreased size, facilitated manufacturing and ease of use in stock production. 6 cl, 5 dwg
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Authors
Dates
1995-08-09—Published
1990-01-24—Filed