GB781042A - Improvements in or relating to machines for manipulating cut tobacco - Google Patents
Improvements in or relating to machines for manipulating cut tobaccoInfo
- Publication number
- GB781042A GB781042A GB1927151A GB1927151A GB781042A GB 781042 A GB781042 A GB 781042A GB 1927151 A GB1927151 A GB 1927151A GB 1927151 A GB1927151 A GB 1927151A GB 781042 A GB781042 A GB 781042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ray source
- ionization chamber
- mass
- tobacco
- tape
- 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
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
- A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
- A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
781,042. Testing by nuclear radiation. MOLINS, D. W., POWELL, G. F. W., and MOLINS MACHINE CO., Ltd. Aug. 15, 1952 [Aug. 15, 1951], No. 19271/51. Class 40 (3). [Also in Groups VI, XXXV and XXXVI] In an automatically controlled cigarettemaking machine (see Group XXXV) the mass of a predetermined length of the moving filler on a tape is measured by a beta-ray mass measuring unit. In this unit the cigarette filler passes between guides 52, Fig. 2, and radiation from a beta-ray source 111, after passing through an aperture 135 in a screen 124 and through the cigarette filler, influences an ionization chamber 110 to produce an electrical signal. Ray source 111 is adjustable towards and away from the ionization chamber 110 by means of a knob (not shown) and a pointer indicates the set position. When checking the measuring unit one of the metal diaphragms 125, 126, 127 of thickness equivalent to different known masses of tobacco is brought between the ray source and the ionization chamber. If by releasing a clamp 151, ionization chamber 110 is swung away in the direction of the arrow, the operator is protected by a flap 147 which moves automatically to cover the opening of ray source 111. Electric heaters (not shown) prevent condensation within the measuring unit. The output of a second identical measuring unit with, between its ray source and ionization chamber, a metal diaphragm equivalent to the desired tobacco mass, is connected in opposition to the first to produce a signal dependent on the mass error. This second unit is also associated with the empty tape to provide compensation for tape wear. Air blowers remove dust from the measuring units and the tape is scraped clean. The mass error signal is a direct voltage which is converted to alternating by a vibrating condenser, the output of which is amplified to operate a thermionic valve voltmeter indicating the magnitude and sense of mass error and is utilized to control the speed of conveyance of the tobacco. Compensation is provided for variations in the moisture content of the tobacco (see Group XXXVI). Specifications 361,998, 440,182, 646,746, [all in Group VI], 684,503, 781,041, [Group XXXV], 781,043, 781,044, 781,047, 781,049 and 781,050, [both in Group XXXV], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1927151A GB781042A (en) | 1951-08-15 | 1951-08-15 | Improvements in or relating to machines for manipulating cut tobacco |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1927151A GB781042A (en) | 1951-08-15 | 1951-08-15 | Improvements in or relating to machines for manipulating cut tobacco |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB781042A true GB781042A (en) | 1957-08-14 |
Family
ID=10126620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1927151A Expired GB781042A (en) | 1951-08-15 | 1951-08-15 | Improvements in or relating to machines for manipulating cut tobacco |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB781042A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020058897A1 (en) * | 2018-09-21 | 2020-03-26 | G.D S.P.A. | Apparatus for the conveying and inspection of a semi-finished product of the tobacco industry |
| CN114304721A (en) * | 2022-01-24 | 2022-04-12 | 浙江中烟工业有限责任公司 | Asymmetric control method for cigarette weight |
| US11412777B2 (en) | 2017-10-10 | 2022-08-16 | British American Tobacco (Investments) Limited | Rod inspection method and apparatus |
-
1951
- 1951-08-15 GB GB1927151A patent/GB781042A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11412777B2 (en) | 2017-10-10 | 2022-08-16 | British American Tobacco (Investments) Limited | Rod inspection method and apparatus |
| WO2020058897A1 (en) * | 2018-09-21 | 2020-03-26 | G.D S.P.A. | Apparatus for the conveying and inspection of a semi-finished product of the tobacco industry |
| CN114304721A (en) * | 2022-01-24 | 2022-04-12 | 浙江中烟工业有限责任公司 | Asymmetric control method for cigarette weight |
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