GB900927A - Method and apparatus for detecting concealed faults or joints in multiple-layer sheet materials - Google Patents
Method and apparatus for detecting concealed faults or joints in multiple-layer sheet materialsInfo
- Publication number
- GB900927A GB900927A GB590659A GB590659A GB900927A GB 900927 A GB900927 A GB 900927A GB 590659 A GB590659 A GB 590659A GB 590659 A GB590659 A GB 590659A GB 900927 A GB900927 A GB 900927A
- Authority
- GB
- United Kingdom
- Prior art keywords
- faults
- joints
- paper
- electromagnet
- rays
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 title 1
- 239000002365 multiple layer Substances 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
900,927. Sheet-delivery apparatus. JAGENBERG-WERKE A.G. Feb. 20, 1959 [March 13, 1958], No. 5906/59. Class 100 (1). [Also in Groups XXXVI, XL (b) and XL (c)] In a method of indicating or rejecting concealed joints or faults in multi-layer webs of paper or the like, the joints or faults are previously provided with a marking arranged to generate a signal when the sheets are moved past a detector. In Fig. 1, webs of paper from a number of rolls 1 are assembled together by rollers 2 before being cut into individual stacks by rotating cutter drums 4. The stacks are passed by belts 5, 6 into a container 7. When a fault or joint in any one web passes the sensing head 8, an electrical impulse is generated to energize the electromagnet 12 which moves the deflector blade 9 so that the defective stack is deposited in container 13. Joints or faults in each paper roll 1 are previously marked with a piece of adhesive metal foil or other metallizing. The two sides of the sensing head 8 may take the form of plates of a charged capacitor so that a variation in voltage in an amplifying circuit is produced when such a fault passes the head. Alternatively, the paper webs may pass between the primary and secondary windings of a transformer fed with high-frequency alternating voltage. Fig. 4 shows an arrangement for use with sheets in which the joints or faults have previously been rendered ferromagnetic. When such a fault passes the polepieces of the electromagnet 20, a voltage pulse is induced in the coil 21 which, after amplification, can energize the electromagnet 12. In another arrangement, the change in absorption of α- and #-rays, #-rays or X-rays is detected by a Geiger counter and converted into the required electrical impulse. Alternatively, the joints or marked faults may be indicated by the use of radioactive isotopes. In another arrangement, the variation in the absorption or reflection of sound waves is utilized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEJ0014546 | 1958-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB900927A true GB900927A (en) | 1962-07-11 |
Family
ID=7199357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB590659A Expired GB900927A (en) | 1958-03-13 | 1959-02-20 | Method and apparatus for detecting concealed faults or joints in multiple-layer sheet materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB900927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034735A (en) * | 2014-02-28 | 2014-09-10 | 金东纸业（江苏）股份有限公司 | Detection device for multilayer material |
-
1959
- 1959-02-20 GB GB590659A patent/GB900927A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034735A (en) * | 2014-02-28 | 2014-09-10 | 金东纸业（江苏）股份有限公司 | Detection device for multilayer material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7708814L (en) | APPARATUS FOR FAST DOCUMENT HANDLING | |
| SE8205450L (en) | PROCEDURE AND DEVICE FOR DETECTION OF SHEET STATE | |
| GB1149650A (en) | Method for detecting changes in thickness of sheet materials | |
| GB1497181A (en) | Gauging apparatus for laminar materials | |
| GB1115273A (en) | Building material laminate | |
| GB900927A (en) | Method and apparatus for detecting concealed faults or joints in multiple-layer sheet materials | |
| GB980535A (en) | Sheet feeding apparatus | |
| GB1344986A (en) | Discriminating apparatus for moving translucent sheets | |
| GB872941A (en) | Apparatus for counting moving objects of electrically conducting material | |
| EP0280147A3 (en) | Paper sheet handling apparatus | |
| US3070365A (en) | Method of and means for detecting flaws and the like in a plurality of superposed webs or sheets | |
| GB1164748A (en) | Electronic Device for Detecting the Passage of Non-Conductive Sheets | |
| US3069601A (en) | Magnetic detector | |
| CH426894A (en) | Device for collecting sheets of paper, cardboard, foils or similar sheet-like products as well as for forwarding the packages each consisting of a predetermined number of sheets | |
| JPH0133401B2 (en) | ||
| GB1418476A (en) | Detection of ferromagnetic materials | |
| JPS5441173A (en) | Paper leaves handling apparatus | |
| JPS5647225A (en) | Manufacturing apparatus for laminated iron core | |
| GB2013632A (en) | Monitoring sheet feed | |
| CA558820A (en) | Apparatus for the counting of sheets of paper, especially bank notes | |
| AU201871B2 (en) | Apparatus forthe counting of sheets of paper especially banknotes | |
| JPS5470072A (en) | Rolling data measuring apparatus | |
| AU935055A (en) | Apparatus forthe counting of sheets of paper especially banknotes | |
| AU213719B2 (en) | Apparatus for the counting of sheets of material for example bank notes | |
| GB1019414A (en) | Improvements in or relating to apparatus for and methods of detecting faults or joins in webs or stacks of material |