GB565392A - Improvements in inflatable cores for use in casting hollow concrete units - Google Patents

Improvements in inflatable cores for use in casting hollow concrete units

Info

Publication number
GB565392A
GB565392A GB1013243A GB1013243A GB565392A GB 565392 A GB565392 A GB 565392A GB 1013243 A GB1013243 A GB 1013243A GB 1013243 A GB1013243 A GB 1013243A GB 565392 A GB565392 A GB 565392A
Authority
GB
United Kingdom
Prior art keywords
cover
hollow concrete
tags
rings
concrete units
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
GB1013243A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1013243A priority Critical patent/GB565392A/en
Publication of GB565392A publication Critical patent/GB565392A/en
Expired legal-status Critical Current

Links

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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

565,392. Inflatable cores for making hollow concrete units. MATHEWS, C. B., and AMBROSE. J. G. June 23, 1943, No. 10132. [Class 87 (ii)] A non-circular inflatable core comprises three rubber tubes 8 maintained in alignment in a stretchable reinforced -rubber cover 1 by means of rings 6 alternating with tags b which are secured to the edges of the cover, which are drawn together by elastic lacing 7. The rings and tags are integral with a central strip 3 of rubberized material which is stitched to the cover. The ends of the rings are stuck to each other by rubber solution, and the ends of the tags are stuck to the cover by rubber solution.
GB1013243A 1943-06-23 1943-06-23 Improvements in inflatable cores for use in casting hollow concrete units Expired GB565392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1013243A GB565392A (en) 1943-06-23 1943-06-23 Improvements in inflatable cores for use in casting hollow concrete units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1013243A GB565392A (en) 1943-06-23 1943-06-23 Improvements in inflatable cores for use in casting hollow concrete units

Publications (1)

Publication Number Publication Date
GB565392A true GB565392A (en) 1944-11-08

Family

ID=9962092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1013243A Expired GB565392A (en) 1943-06-23 1943-06-23 Improvements in inflatable cores for use in casting hollow concrete units

Country Status (1)

Country Link
GB (1) GB565392A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458778A1 (en) * 1990-05-21 1991-11-27 BAUSTOFFKONTOR PATSCH & CO. OHG Tubular reusable and inflatable moulding form of elastic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458778A1 (en) * 1990-05-21 1991-11-27 BAUSTOFFKONTOR PATSCH & CO. OHG Tubular reusable and inflatable moulding form of elastic material

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