GB690056A - Improvements in or relating to edge detecting or sensing means - Google Patents

Improvements in or relating to edge detecting or sensing means

Info

Publication number
GB690056A
GB690056A GB1948350A GB1948350A GB690056A GB 690056 A GB690056 A GB 690056A GB 1948350 A GB1948350 A GB 1948350A GB 1948350 A GB1948350 A GB 1948350A GB 690056 A GB690056 A GB 690056A
Authority
GB
United Kingdom
Prior art keywords
mask
cell
edge
web
feeler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1948350A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1948350A priority Critical patent/GB690056A/en
Publication of GB690056A publication Critical patent/GB690056A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of web
    • B65H23/0208—Sensing transverse register of web with an element engaging the edge of the web

Landscapes

  • Preliminary Treatment Of Fibers (AREA)

Abstract

690,056. Photo-electric control of webs. SPOONER, W. W. Aug. 7, 1951 [Aug. 4,1950], No. 19483/50. Class 40 (iii). To produce a contro voltage dependent or the position of the edge of a moving web, a feeler travelling on the edge of a web varies the light received by a photoelectric cell. As shown, the feeler 3 consists of a bell-crank lever pivoted at 4, one arm 6 riding on the edge of the web 7 and the other forming a mask 5 which varies the light from a source 1 to a photo-electric cell (not shown). The cell is situated behind one or more apertures in a 'housing which may be uncovered by the mask or the mask may have in it a number of differently-sized apertures. The sensitivity of tha apparatus may be varied by moving the cell and light source towards the pivotal axis of the mask.
GB1948350A 1950-08-04 1950-08-04 Improvements in or relating to edge detecting or sensing means Expired GB690056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1948350A GB690056A (en) 1950-08-04 1950-08-04 Improvements in or relating to edge detecting or sensing means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1948350A GB690056A (en) 1950-08-04 1950-08-04 Improvements in or relating to edge detecting or sensing means

Publications (1)

Publication Number Publication Date
GB690056A true GB690056A (en) 1953-04-08

Family

ID=10130117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1948350A Expired GB690056A (en) 1950-08-04 1950-08-04 Improvements in or relating to edge detecting or sensing means

Country Status (1)

Country Link
GB (1) GB690056A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450210A1 (en) 2003-02-21 2004-08-25 Heidelberger Druckmaschinen Aktiengesellschaft Apparatus and method for detecting the edge of a recording material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450210A1 (en) 2003-02-21 2004-08-25 Heidelberger Druckmaschinen Aktiengesellschaft Apparatus and method for detecting the edge of a recording material

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