GB1251253A - - Google Patents

Info

Publication number
GB1251253A
GB1251253A GB1251253DA GB1251253A GB 1251253 A GB1251253 A GB 1251253A GB 1251253D A GB1251253D A GB 1251253DA GB 1251253 A GB1251253 A GB 1251253A
Authority
GB
United Kingdom
Prior art keywords
belt
chamber
weighing device
rake
predetermined load
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
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 filed Critical
Publication of GB1251253A publication Critical patent/GB1251253A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B17/00—Apparatus for esterification or etherification of cellulose
    • C08B17/04—Apparatus for esterification or etherification of cellulose for making cellulose nitrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/008—Feed or outlet control devices
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/02—Rendering cellulose suitable for esterification
    • C08B1/04—Rendering cellulose suitable for esterification for the preparation of cellulose nitrate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/02—Cellulose nitrate, i.e. nitrocellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

1,251,253. Weighing apparatus. FRANCE, ARMED FORCES MINISTER OF. March 21, 1969 [March 25, 1968], No. 15088/69. Heading G1W. Apparatus for supplying material at a constant rate comprises a weighing device 1 adapted to discharge a constant weight of material at regular time intervals into a distributing chamber 8, a conveyer belt 9 which is arranged to receive the material from the chamber 8 and a rake 12 for spreading the material to form a uniform layer on the conveyer belt 9. As shown, material in a supply hopper 6 is arranged to be fed to the weighing device by a conveyer belt 5 and toothed wheels 7 which are driven under the control of the weighing device. The speed of rotation of the belt 5 and wheels 7 is slowed when a predetermined load in the hopper of the weighing device 1 is approached and stopped when the predetermined load is attained. Doors 2 are then pneumatically operated by jacks 3 to direct the predetermined load to the chamber 8 which may be provided with a mixing device 11. A vertical plate 10 forming a side wall of the chamber 8 is movable to spread the material on the belt 9 which conveys the material via the rake 12 to a rotating distributor 17. The rake 12 may be arranged to be moved parallel to the upper run of the belt 9 which is driven at a constant speed. The apparatus may be used to supply cellulose to a nitration reactor.
GB1251253D 1968-03-25 1969-03-21 Expired GB1251253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR145211 1968-03-25

Publications (1)

Publication Number Publication Date
GB1251253A true GB1251253A (en) 1971-10-27

Family

ID=8647969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251253D Expired GB1251253A (en) 1968-03-25 1969-03-21

Country Status (7)

Country Link
BE (1) BE729508A (en)
CH (1) CH500234A (en)
DE (1) DE1914673C3 (en)
FR (1) FR1566612A (en)
GB (1) GB1251253A (en)
LU (1) LU58240A1 (en)
NL (1) NL6904473A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385739A1 (en) * 1977-03-30 1978-10-27 Poudres & Explosifs Ste Nale NOVEL CONTINUOUS NITRATION PROCESS FOR CELLULOSE AND INSTALLATION FOR CARRYING OUT SUCH A PROCESS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068870B (en) * 1959-11-12
DE966307C (en) * 1944-04-23 1957-07-25 Dynamit Nobel Ag Arrangement of a plant for the production of ready-to-ship nitrocellulose
DE865870C (en) * 1944-07-28 1953-02-05 Eibia G M B H Fuer Chemische P Process for nitriding cellulose
FR1394779A (en) * 1964-01-03 1965-04-09 France Ministre Des Armees Continuous cellulose nitration process

Also Published As

Publication number Publication date
BE729508A (en) 1969-08-18
DE1914673B2 (en) 1975-04-03
CH500234A (en) 1970-12-15
LU58240A1 (en) 1969-07-11
FR1566612A (en) 1969-05-09
DE1914673A1 (en) 1969-10-09
DE1914673C3 (en) 1983-12-08
NL6904473A (en) 1969-09-29

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee