(under subclass 131) Device provided with means in addition to the reciprocating member, which means include a source of vacuum or subatmospheric pressure that facilitates the operation of the reciprocating member.
(1) Note. The suction means must be a stationary suction member that does not by itself remove a sheet from the stack. Rather it is separate from the reciprocation separator and pulls the sheet into a position that will ensure the engagement of the sheet by the separator. For a suction member that reciprocates to separate a sheet from a pack, and for a suction member that assists a rotating feed means, see search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102, for a suction member that reciprocates to separate a sheet from a pack, and see (1) Note, above.
112, for a suction member that assists a rotating feed means, and see (1) Note, above.