GB1205218A – Improvements in or relating to totally cementitious pipes
– Google Patents
GB1205218A – Improvements in or relating to totally cementitious pipes
– Google Patents
Improvements in or relating to totally cementitious pipes
Info
Publication number
GB1205218A
GB1205218A
GB4796066A
GB4796066A
GB1205218A
GB 1205218 A
GB1205218 A
GB 1205218A
GB 4796066 A
GB4796066 A
GB 4796066A
GB 4796066 A
GB4796066 A
GB 4796066A
GB 1205218 A
GB1205218 A
GB 1205218A
Authority
GB
United Kingdom
Prior art keywords
pipe
slurry
aluminous cement
oxidizable
lengths
Prior art date
1966-10-26
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
GB4796066A
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.)
JOHN DAVRON Ltd
Original Assignee
JOHN DAVRON Ltd
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.)
1966-10-26
Filing date
1966-10-26
Publication date
1970-09-16
1966-10-26
Application filed by JOHN DAVRON Ltd
filed
Critical
JOHN DAVRON Ltd
1966-10-26
Priority to GB4796066A
priority
Critical
patent/GB1205218A/en
1967-10-25
Priority to DE19671625975
priority
patent/DE1625975A1/en
1970-09-16
Publication of GB1205218A
publication
Critical
patent/GB1205218A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
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
B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
B28B21/72—Producing multilayer tubes
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L9/00—Rigid pipes
F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
Abstract
1,205,218. Cementitious pipes. JOHN DAVRON Ltd. 19 Oct., 1967 [26 Oct., 1966], No. 47960/66. Heading F2P. A method of manufacturing a totally cementitious pipe, which has an inner concrete surface and an outer layer of aluminous cement reinforced with a non-oxidizable fibrous material comprises the steps of forming separate lengths of concrete pipe, advancing the lengths of pipe, after setting, along a central mandrel and past a revolving head for winding non-oxidizable fibrous material around the pipe, applying the non-oxidizable material in a slurry of aluminous cement to the outer concrete surface of the lengths of pipe, and causing the aluminous cement reinforced by the fibrous material to adhere to the outer concrete surface. Aluminous cements are stated to include those having more than 25% by weight of alumina (Al 2 O 3 ), the reinforcement preferably being glass fibres or synthetic resin, or asbestos, fibres. As shown, a basic concrete pipe 2, mounted upon a mandrel 4, is axially advanced past a revolving head 6 which carries a number of reels 7 each of which delivers a fibreglass roving 8 to a guide 9 where it picks up a slurry of aluminous cement before being wound around the outer surface of the pipe 2. A ring 11, at each side of the head, passes over the corresponding ring of guides 9, and through a slurry tank 10, slurry being applied to the rovings 8 as they pass through the guides 9. In an alternative method a slurry of aluminous cement is applied to the outer surface of the pipe 2 and then the glassfibre rovings, not coated with slurry, are wound around the pipe 2. The outer layer is preferably between 1/16 and 1/4 inch thick.
GB4796066A
1966-10-26
1966-10-26
Improvements in or relating to totally cementitious pipes
Expired
GB1205218A
(en)
Priority Applications (2)
Application Number
Priority Date
Filing Date
Title
GB4796066A
GB1205218A
(en)
1966-10-26
1966-10-26
Improvements in or relating to totally cementitious pipes
DE19671625975
DE1625975A1
(en)
1966-10-26
1967-10-25
Cement pipe
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4796066A
GB1205218A
(en)
1966-10-26
1966-10-26
Improvements in or relating to totally cementitious pipes
Publications (1)
Publication Number
Publication Date
GB1205218A
true
GB1205218A
(en)
1970-09-16
Family
ID=10446862
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4796066A
Expired
GB1205218A
(en)
1966-10-26
1966-10-26
Improvements in or relating to totally cementitious pipes
Country Status (2)
Country
Link
DE
(1)
DE1625975A1
(en)
GB
(1)
GB1205218A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1987002301A1
(en)
*
1985-10-17
1987-04-23
Alexandre Graevenitz
Method and device for fabricating hollow bodies made of continuous fibre-reinforced concrete, and products obtained thereby
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1384106A
(en)
*
1972-07-27
1975-02-19
Amey Roadstone Corp
Tubular concrete bodies and the moulding thereof
FR2517797B1
(en)
*
1981-12-08
1986-01-10
Socea Balency Sobea
REINFORCED CONCRETE PIPE AND MANUFACTURING METHOD THEREOF
1966
1966-10-26
GB
GB4796066A
patent/GB1205218A/en
not_active
Expired
1967
1967-10-25
DE
DE19671625975
patent/DE1625975A1/en
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1987002301A1
(en)
*
1985-10-17
1987-04-23
Alexandre Graevenitz
Method and device for fabricating hollow bodies made of continuous fibre-reinforced concrete, and products obtained thereby
Also Published As
Publication number
Publication date
DE1625975A1
(en)
1970-08-13
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Legal Events
Date
Code
Title
Description
1971-01-27
PS
Patent sealed
1972-05-17
PLNP
Patent lapsed through nonpayment of renewal fees
