GB888570A - Improvements in and relating to web splicing equipment - Google Patents
Improvements in and relating to web splicing equipmentInfo
- Publication number
- GB888570A GB888570A GB305859A GB305859A GB888570A GB 888570 A GB888570 A GB 888570A GB 305859 A GB305859 A GB 305859A GB 305859 A GB305859 A GB 305859A GB 888570 A GB888570 A GB 888570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- triode
- circuit
- plates
- roll
- splicing
- 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
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
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1857—Support arrangement of web rolls
- B65H19/1868—The roll support being of the turret type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
- B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
- B65H19/1815—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being stationary prior to splicing contact
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
888,570. Feeding webs. WITTON-JAMES Ltd. Jan. 28, 1960 [Jan. 28, 1959], No. 3058/59. Class 100(1) A detector for detecting when the leading end of a replacement roll is in a position for the initiation of a splicing operation comprises a first part which is stationary and a second part arranged to rotate with the replacemnt roll without contacting the first part, the two parts providing an electrical impedance, the reactance of which varies with the distance between the two parts. As shown, the stationary part 11, Fig. 2, comprises metal plates 13 and 14 mounted in a common plane within an earthed metal screening box 15 having a non-metallic cover 16. The plates 13, 14 form a capacitor in a circuit 18 fed by a thermionic valve oscillator 17, the second part in the form of a metallized tab 12 rotates with the replacement roll 2. The circuit 18 includes an amplifier, followed by a diode, and a triode. The output from the diode varies the grid potential of the triode and thus the conductance of the triode. A relay 19, included in the anode circuit of the triode initiates the operation of splicing brushes 5, Fig. 1 (not shown). The triode conducts when the capacitor reactance is at a minimum value, i.e. when the metallized tab 12 Fig. 2, is closely adjacent the plates 13, 14 and the leading end of the roll 2 is in splicing position. In a modification, the plates 13, 14 form part of an A.C. bridge circuit, one diagonal of which is connected to the oscillator and the other to the circuit 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB305859A GB888570A (en) | 1959-01-28 | 1959-01-28 | Improvements in and relating to web splicing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB305859A GB888570A (en) | 1959-01-28 | 1959-01-28 | Improvements in and relating to web splicing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB888570A true GB888570A (en) | 1962-01-31 |
Family
ID=9751186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB305859A Expired GB888570A (en) | 1959-01-28 | 1959-01-28 | Improvements in and relating to web splicing equipment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB888570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1499127B1 (en) * | 1966-12-16 | 1969-09-04 | Koenig & Bauer Schnellpressfab | Device for controlling the roll star rotation and the movement of the glue brush and the separating knife in automatic paper roll changing units |
| DE2413437A1 (en) * | 1973-05-21 | 1974-12-05 | Rengo Co Ltd | DEVICE FOR CONNECTING TWO PAPER TRAYS |
| US5647547A (en) * | 1994-07-14 | 1997-07-15 | Koenig & Bauer Aktiengesellschaft | Paper supply roll leading edge securement |
-
1959
- 1959-01-28 GB GB305859A patent/GB888570A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1499127B1 (en) * | 1966-12-16 | 1969-09-04 | Koenig & Bauer Schnellpressfab | Device for controlling the roll star rotation and the movement of the glue brush and the separating knife in automatic paper roll changing units |
| DE2413437A1 (en) * | 1973-05-21 | 1974-12-05 | Rengo Co Ltd | DEVICE FOR CONNECTING TWO PAPER TRAYS |
| US5647547A (en) * | 1994-07-14 | 1997-07-15 | Koenig & Bauer Aktiengesellschaft | Paper supply roll leading edge securement |
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