GB859067A - Reinforced plastic pipe - Google Patents

Reinforced plastic pipe

Info

Publication number
GB859067A
GB859067A GB3692558A GB3692558A GB859067A GB 859067 A GB859067 A GB 859067A GB 3692558 A GB3692558 A GB 3692558A GB 3692558 A GB3692558 A GB 3692558A GB 859067 A GB859067 A GB 859067A
Authority
GB
United Kingdom
Prior art keywords
pipe
resin
pressure
cellophane
mould
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
GB3692558A
Inventor
Robert Comstock Pratt
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.)
BABBITT PIPE CO Inc
Original Assignee
BABBITT PIPE CO Inc
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 by BABBITT PIPE CO Inc filed Critical BABBITT PIPE CO Inc
Priority to GB3692558A priority Critical patent/GB859067A/en
Publication of GB859067A publication Critical patent/GB859067A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D1/00—Producing articles with screw-threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • 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
    • F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
    • F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles

Abstract

859,067. Moulding reinforced plastic pipe. BABBITT PIPE CO. Inc. Nov. 17, 1958, No. 36925/58. Class 87(2). [Also in Group XXVIII] Fibrous material impregnated with thermosetting resin is formed into a pipe, the fibres being aligned primarily circumferentially, heated to cure the resin while simultaneously compressed by the outward radial pressure of a diaphragm, the pressure being sufficient to stretch the fibrous material circumferentially and to compact it to a point where the resin transmits throughout the material a fluid pressure in excess of the vapour-pressure at the curing temperature of any volatiles present. As shown in Figs. 1, 2 a tubular diaphragm 10 is placed about a mandrel 12, followed by a thin layer of "Cellophane" (Registered Trade Mark) upon which are wrapped layers 16 of, for example, kraft paper impregnated with phenol formaldehyde resin. A bead 36 of resin may be placed on the inner surface of each strip of paper to act as a lubricant between layers. After a further layer 18 of Cellophane has been applied, the wrapped mandrel is inserted in a mould 20, the combination is placed in an oven 32, and compressed air, e.g. at 2000 p.s.i., is injected through an opening 34. Gas trapped in the mould may be bled off by means of small orifices 35. By suitable modification of the apparatus, a widened end to the pipe to form a coupling connection, screw threads at the ends of the pipe, or a pipe in the form of a T- member, may be formed.
GB3692558A 1958-11-17 1958-11-17 Reinforced plastic pipe Expired GB859067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3692558A GB859067A (en) 1958-11-17 1958-11-17 Reinforced plastic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3692558A GB859067A (en) 1958-11-17 1958-11-17 Reinforced plastic pipe

Publications (1)

Publication Number Publication Date
GB859067A true GB859067A (en) 1961-01-18

Family

ID=10392294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3692558A Expired GB859067A (en) 1958-11-17 1958-11-17 Reinforced plastic pipe

Country Status (1)

Country Link
GB (1) GB859067A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157205A (en) * 1957-10-09 1964-11-17 Studebaker Corp Pre-stressed hollow article
DE2746173A1 (en) * 1977-10-14 1979-04-19 Dornier Gmbh DEVICE FOR THE MANUFACTURING OF COMPONENTS FROM FIBER-REINFORCED PLASTICS
DE2902190A1 (en) * 1979-01-20 1980-07-24 Cronenberg Ohg J Mould for gfr. masts - is formed by two conical tubes with rubber sheath inflated by water
DE3113791A1 (en) * 1981-04-04 1982-12-02 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen "TUBULAR HOLLOW BODY, PROCESS FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE PROCESS"
GB2129365A (en) * 1982-09-07 1984-05-16 Fischer Gmbh Hollow tubular members and a method of making such members
DE4039231A1 (en) * 1990-12-08 1992-06-11 Dornier Luftfahrt Unitary irregular hollow fibre reinforced resin parts prodn. - using flexible positive mould inflated to predetermined shape for lay=up, re-inflated for curing in rigid negative mould for accurate thickness

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157205A (en) * 1957-10-09 1964-11-17 Studebaker Corp Pre-stressed hollow article
DE2746173A1 (en) * 1977-10-14 1979-04-19 Dornier Gmbh DEVICE FOR THE MANUFACTURING OF COMPONENTS FROM FIBER-REINFORCED PLASTICS
DE2902190A1 (en) * 1979-01-20 1980-07-24 Cronenberg Ohg J Mould for gfr. masts - is formed by two conical tubes with rubber sheath inflated by water
DE3113791A1 (en) * 1981-04-04 1982-12-02 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen "TUBULAR HOLLOW BODY, PROCESS FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE PROCESS"
GB2129365A (en) * 1982-09-07 1984-05-16 Fischer Gmbh Hollow tubular members and a method of making such members
US4693140A (en) * 1982-09-07 1987-09-15 Fischer Gesellschaft M.B.H. Hollow tubular members and a method of making such members
DE4039231A1 (en) * 1990-12-08 1992-06-11 Dornier Luftfahrt Unitary irregular hollow fibre reinforced resin parts prodn. - using flexible positive mould inflated to predetermined shape for lay=up, re-inflated for curing in rigid negative mould for accurate thickness

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