公开(公告)号：US3646569A

公开(公告)日：1972-02-29

申请号：US3646569D

申请日：1970-04-13

Applicant: BECKMAN INSTRUMENTS INC

Inventor： ERBACH ARTHUR R ,  KUPFERSCHMIDT ALBERT

IPC: G01D15/30

CPC classification number: G01D15/30

Abstract: A drive arrangement for Z-fold chart paper is provided in which spaced apart guide means positioned between the back tensioning roller and the chart supply provide a positive lateral reference for the chart web just prior to its engagement with the back tensioning roller. The guide means may be conveniently changed in spacing to accommodate chart paper of different widths without requiring any readjustment of the drive rollers or the back tensioning roller.

公开(公告)号：US3424198A

公开(公告)日：1969-01-28

申请号：US3424198D

申请日：1965-06-10

Applicant: BECKMAN INSTRUMENTS INC

Inventor： ERBACH ARTHUR R

IPC: F16K17/168 ,  A46B11/02 ,  F16K45/00 ,  G01D15/18

CPC classification number: F16K17/168 ,  Y10T137/7927 ,  Y10T137/86292

公开(公告)号：US3312980A

公开(公告)日：1967-04-04

申请号：US47986465

申请日：1965-08-16

Applicant: BECKMAN INSTRUMENTS INC

Inventor： ERBACH ARTHUR R

IPC: G01D15/24

CPC classification number: G01D15/24 ,  Y10T74/18112 ,  Y10T74/18928