GB771956A - Improvements in the manufacture of pinch valve hose - Google Patents

Improvements in the manufacture of pinch valve hose

Info

Publication number
GB771956A
GB771956A GB33987/55A GB3398755A GB771956A GB 771956 A GB771956 A GB 771956A GB 33987/55 A GB33987/55 A GB 33987/55A GB 3398755 A GB3398755 A GB 3398755A GB 771956 A GB771956 A GB 771956A
Authority
GB
United Kingdom
Prior art keywords
tube
hose
mandrel
air pressure
braid
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
GB33987/55A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB771956A publication Critical patent/GB771956A/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
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

771,956. Hoses; junction pieces. UNITED STATES RUBBER CO. Nov. 28, 1955 [Feb. 25. 1955]. No. 33987/55. Classes 99(1) and 99(2) In a method of making. a hose 10, Fig. 1, for a pinch valve having rubber sealing rings 19, 20 at each end thereof, a tube 11 provided with a braided reinforcement 12, e.g. of cotton, nylon or rayon, and mounted on a mandrel has an outer jacket 13 applied thereover and sealing rings are substituted for annuli 49, Fig. 6, removed from the tube- The hose is cured to form an integral structure. The tube 11 and jacket 13 may be of natural or synthetic rubber, and any desired number of layers of braid orjackets may be applied either successively or alternately to form the hose. As shown in Fig. 1, the hose incorporates a portion 14 of an internal diameter equal to that of the bore of pipes 21, 22 connected by the hose. Initially, the tube 11 is extruded and assembled on a mandrel having a diameter equal to that of the internaldiameters of the portion 14 and pipes 21, 22, and one or more layers 12 of braid are applied to the tube, the strands of the braid making an angle of 30 to 45 degrees with the axis of the tube In the second stage of making the hose, the tube is expanded by air pressure and passed over anothermandrel 24 built-up from sections 25, 31 -having reduced stem portions 27. Upon release of the air pressure, the tube contracts at the portions 27 of the mandrel to form the portions 14. The jacket is expanded by air pressure passed over the tube and allowed to contract by release of the air pressure, whereafter the mandrel is mounted in a lathe and rotated to enable the annuli 49 to be removed and the resulting channels to be filled with ribbons of uncured rubber to form rings. After helically wrapping the hose with tape, curing the hose, and removing the tape, the mandrel is again mounted in the lathe and the rings are centrally cut through to produce the sealing rings 19, 20. As shown in Fig. 6, several hoses are simultaneously made.
GB33987/55A 1955-02-25 1955-11-28 Improvements in the manufacture of pinch valve hose Expired GB771956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US771956XA 1955-02-25 1955-02-25

Publications (1)

Publication Number Publication Date
GB771956A true GB771956A (en) 1957-04-10

Family

ID=22136623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33987/55A Expired GB771956A (en) 1955-02-25 1955-11-28 Improvements in the manufacture of pinch valve hose

Country Status (1)

Country Link
GB (1) GB771956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1135250B (en) * 1959-09-03 1962-08-23 Continental Gummi Werke Ag Clamping hose for hose valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1135250B (en) * 1959-09-03 1962-08-23 Continental Gummi Werke Ag Clamping hose for hose valves

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