GB516383A - Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the like - Google Patents
Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the likeInfo
- Publication number
- GB516383A GB516383A GB1879338A GB1879338A GB516383A GB 516383 A GB516383 A GB 516383A GB 1879338 A GB1879338 A GB 1879338A GB 1879338 A GB1879338 A GB 1879338A GB 516383 A GB516383 A GB 516383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- brushes
- opposite
- web
- tube
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
516,383. Discharging static electricity. CHADFIELD, C. R. A. June 24. 1938, No. 18793. [Class 35] Static electric charges carried by travelling webs or threads 7 such as photographic films, silk or rubber threads during manufacture are neutralized by discharges from discharge points 19 carried by copper or brass rods 18, 18a these being charged with static electricity of opposite sign from two rotors. The rotors consist of brass rods 2, 2a carried by insulating end discs 1, which are mounted on shafts 3, connected so that they rotate in the same direction. Pairs of arms 11, 12 on each shaft form through brushes 13 earthing contacts for the rods 2, 2a; further brushes 15, 15a connect these rods to discharge rods 18, 18a and brushes 14, 14a are connected to insulated tubes 9. 9a similar to tubes 8, 8a which are opposite the rotors at the point of contact of one set of the brushes 13. The tubes 8a and 9 are connected together. The tube 8 is charged with electricity from a static machine such as described in Specification 516 384, or by the web 7 in which case the speed of the rotor is such that the rods 2 move at a greater speed than the web when they are opposite the web. The charge on the web or tube 8 induces a charge of opposite sign on the rods 2 they being earthed when opposite the tube. Through the brush 14 the tube 8a is charged and this in turn charges the rods 2a. The brushes 15, 15a collect charges of opposite sign for the points 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1879338A GB516383A (en) | 1938-06-24 | 1938-06-24 | Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1879338A GB516383A (en) | 1938-06-24 | 1938-06-24 | Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB516383A true GB516383A (en) | 1940-01-01 |
Family
ID=10118520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1879338A Expired GB516383A (en) | 1938-06-24 | 1938-06-24 | Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB516383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475652A (en) * | 1966-12-05 | 1969-10-28 | Simco Co Inc The | Dual phase static eliminator |
-
1938
- 1938-06-24 GB GB1879338A patent/GB516383A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475652A (en) * | 1966-12-05 | 1969-10-28 | Simco Co Inc The | Dual phase static eliminator |
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