GB799072A - Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods - Google Patents

Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods

Info

Publication number
GB799072A
GB799072A GB1322355A GB1322355A GB799072A GB 799072 A GB799072 A GB 799072A GB 1322355 A GB1322355 A GB 1322355A GB 1322355 A GB1322355 A GB 1322355A GB 799072 A GB799072 A GB 799072A
Authority
GB
United Kingdom
Prior art keywords
holes
methods
casting
perforated plates
pins
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
GB1322355A
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.)
ANDERS PALMER
Original Assignee
ANDERS PALMER
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 ANDERS PALMER filed Critical ANDERS PALMER
Priority to GB1322355A priority Critical patent/GB799072A/en
Publication of GB799072A publication Critical patent/GB799072A/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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/44—Producing shaped prefabricated articles from the material by forcing cores into filled moulds for forming hollow articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

799,072. Moulding perforated plates from gypsum &c. PALMER, P. A. May 6, 1955, No. 13223/55. Class 87(2). A gypsum plate which may be reinforced, is formed with holes or slots by casting the plate between vertically movable mould parts 1, 2 having holes 21, 25 respectively, whilst the part 21 is in a pivotally raised position, and then causing removable pins 19 or knives to move through the cast material and through the holes 24 (see Fig. 4, not shown), by lowering the part 2, and then the part 1. The pins 19 may project slightly through the holes 25, prior to casting, to close the holes. The upper mould part 1 and its side frame 3 are each pivotally mounted to allow them to be swung back for casting and removal of the plate. The lower part 2 may be raised and lowered by pins 16. Enclosed air may escape through the holes 24.
GB1322355A 1955-05-06 1955-05-06 Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods Expired GB799072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1322355A GB799072A (en) 1955-05-06 1955-05-06 Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1322355A GB799072A (en) 1955-05-06 1955-05-06 Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods

Publications (1)

Publication Number Publication Date
GB799072A true GB799072A (en) 1958-07-30

Family

ID=10019058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1322355A Expired GB799072A (en) 1955-05-06 1955-05-06 Improvements in or relating to methods for casting perforated plates in moulds, and apparatus for carrying out these methods

Country Status (1)

Country Link
GB (1) GB799072A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268055A (en) * 1991-10-31 1993-12-07 Bales John L Method for making perforated composite laminates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268055A (en) * 1991-10-31 1993-12-07 Bales John L Method for making perforated composite laminates

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