GB1067528A – Method of controlling the deposition of asbestos fibres and cement
– Google Patents
GB1067528A – Method of controlling the deposition of asbestos fibres and cement
– Google Patents
Method of controlling the deposition of asbestos fibres and cement
Info
Publication number
GB1067528A
GB1067528A
GB857265A
GB857265A
GB1067528A
GB 1067528 A
GB1067528 A
GB 1067528A
GB 857265 A
GB857265 A
GB 857265A
GB 857265 A
GB857265 A
GB 857265A
GB 1067528 A
GB1067528 A
GB 1067528A
Authority
GB
United Kingdom
Prior art keywords
sheet
cement
asbestos
slurry
flocculating agent
Prior art date
1964-04-16
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
GB857265A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johns Manville Corp
Johns Manville
Original Assignee
Johns Manville Corp
Johns Manville
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.)
1964-04-16
Filing date
1965-03-01
Publication date
1967-05-03
1965-03-01
Application filed by Johns Manville Corp, Johns Manville
filed
Critical
Johns Manville Corp
1967-05-03
Publication of GB1067528A
publication
Critical
patent/GB1067528A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
B—PERFORMING OPERATIONS; TRANSPORTING
B28—WORKING CEMENT, CLAY, OR STONE
B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B1/00—Producing shaped prefabricated articles from the material
B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
B28B1/40—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding
B28B1/42—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding using mixtures containing fibres, e.g. for making sheets by slitting the wound layer
B—PERFORMING OPERATIONS; TRANSPORTING
B28—WORKING CEMENT, CLAY, OR STONE
B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B21/00—Methods or machines specially adapted for the production of tubular articles
B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
B28B21/48—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces by wrapping, e.g. winding
C—CHEMISTRY; METALLURGY
C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
C04B40/0028—Aspects relating to the mixing step of the mortar preparation
Abstract
1,067,528. Asbestos-cement boards. JOHNSMANVILLE CORPORATION. March 1, 1965 [April 16, 1964], No. 8572/65. Headings D2A and D2B. [Also in Division F2] In a method of forming a fibrous sheet by deposition of a slurry on a conveyor the variation of thickness of the sheet across the width thereof is controlled by adding a flocculating agent at spaced locations to the slurry. The slurry contains asbestos fibres, cement, and silica. with the flocculating agent being as described in Specification No. 887,997, to form an asbestos-cement pipe by winding the sheet on a rotating mandrel 94, Fig. 10 (not shown), which has two rolls 106, 108 hydraulically pressed thereon, the rolls being permitted to rise as the pipe thickness increases. Alternatively an asbestos-cement sheet or board may be formed. As shown slurry flows over a weir 8 from a trough 2 containing a gate valve into a flow pan 20 having baffles 28 therein. The flocculating agent is supplied through piping 60 which has swivel joints so that nozzles 64, 65 may be positioned at the desired points. The slurry flows into vats containing two cylinder moulds which form a two-ply sheet on the conveyor. The flocculating agent may be added so that a sheet of uniform thickness is obtained-i.e. by counteracting any tendency for the apparatus to form a non- uniform sheet-, or so that a sheet having a greater thickness at the centre is obtained.
GB857265A
1964-04-16
1965-03-01
Method of controlling the deposition of asbestos fibres and cement
Expired
GB1067528A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US36026564A
1964-04-16
1964-04-16
Publications (1)
Publication Number
Publication Date
GB1067528A
true
GB1067528A
(en)
1967-05-03
Family
ID=23417268
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB857265A
Expired
GB1067528A
(en)
1964-04-16
1965-03-01
Method of controlling the deposition of asbestos fibres and cement
Country Status (4)
Country
Link
BE
(1)
BE661499A
(en)
DE
(1)
DE1584480A1
(en)
ES
(1)
ES311386A2
(en)
GB
(1)
GB1067528A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2321472A
(en)
*
1997-01-24
1998-07-29
Bpb Industries Plc
Non-woven inorganic fibre mat
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2549466A1
(en)
*
1983-07-22
1985-01-25
Everitube
Process for improving the bonding between a number of layers of a wet mixture of fibres and hydraulic binder and device for its use
1965
1965-03-01
GB
GB857265A
patent/GB1067528A/en
not_active
Expired
1965-03-12
DE
DE19651584480
patent/DE1584480A1/en
active
Pending
1965-03-23
BE
BE661499D
patent/BE661499A/xx
unknown
1965-04-03
ES
ES0311386A
patent/ES311386A2/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2321472A
(en)
*
1997-01-24
1998-07-29
Bpb Industries Plc
Non-woven inorganic fibre mat
GB2321472B
(en)
*
1997-01-24
2001-06-06
Bpb Industries Plc
Non-woven inorganic fibre mat
Also Published As
Publication number
Publication date
ES311386A2
(en)
1965-06-01
DE1584480A1
(en)
1970-06-25
BE661499A
(en)
1965-09-23
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