公开(公告)号：US3575100A

公开(公告)日：1971-04-13

申请号：US3575100D

申请日：1967-11-27

Applicant: EDWARD B KRAUSE

Inventor： KRAUSE EDWARD B

IPC: G03D3/13 ,  G03D3/14

CPC classification number: G03D3/135 ,  G03D3/14

Abstract: Automatic film developing apparatus for processing continuous length film, e.g. movie film. Film is pulled in a helical path about a series of upper and lower freely rotatable guide spools mounted on upper and lower shafts. An auxiliary drive roll underlies the peripheries of the spools on the upper shaft, which is resiliently biassed upwardly. When the film tension reaches some preselected value, the upper spools are pulled down into driving engagement with the auxiliary drive rolls, thus reducing the tension. One end of certain upper shafts may be blocked from vertical movement to provide smoother operation under certain conditions.

公开(公告)号：US3528121A

公开(公告)日：1970-09-15

申请号：US3528121D

申请日：1968-04-04

Applicant: EDWARD B KRAUSE

Inventor： KRAUSE EDWARD B

IPC: A47L1/02 ,  A47L11/30 ,  D06B15/04 ,  G03D15/02 ,  A47L5/38

CPC classification number: G03D15/02 ,  D06B15/04

公开(公告)号：US3518713A

公开(公告)日：1970-07-07

申请号：US3518713D

申请日：1968-04-10

Applicant: EDWARD B KRAUSE

Inventor： KRAUSE EDWARD B

IPC: G03D15/02 ,  B08B5/02

CPC classification number: G03D15/02