GB883213A - Method of producing moulded bodies - Google Patents

Method of producing moulded bodies

Info

Publication number
GB883213A
GB883213A GB11717/59A GB1171759A GB883213A GB 883213 A GB883213 A GB 883213A GB 11717/59 A GB11717/59 A GB 11717/59A GB 1171759 A GB1171759 A GB 1171759A GB 883213 A GB883213 A GB 883213A
Authority
GB
United Kingdom
Prior art keywords
liquid
moulding material
collodion
april
abrasive particles
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
GB11717/59A
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
Publication of GB883213A publication Critical patent/GB883213A/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
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
    • 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
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00471—Production of simple or compound lenses made by rotational casting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

883,213. Moulding plastic materials. STRAUB, L. April 7, 1959 [April 10, 1958], No. 11717/59. Class 87(2). [Also in Group XXII] A moulded article, e.g. a die, an optical mirror, or a grinding wheel, is produced by casting a settable liquid or plastic mass in a mould on the surface of a uniformly rotating liquid. The moulding material may consist of paraffin wax, a resin, lacquer, collodion, molten metal, or a cement composition, and the liquid on which it is cast may be mercury, oil, water, or a silicone rubber. For manufacturing a grinding wheel abrasive particles may be sprinkled on to the liquid surface before the moulding material is applied. In the manufacture of such wheel the supporting liquid 2 is placed in a container 1 which is rotated about a vertical axis to form a parabolic surface on the liquid 2. Abrasive particles 10 are applied to this parabolic surface followed by a layer 7 of a varnish or collodion. The rotation is continued until the layer 7 has set when further layers 8, 9 of the same or a different moulding material may be applied if desired.
GB11717/59A 1958-04-10 1959-04-07 Method of producing moulded bodies Expired GB883213A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1227497X 1958-04-10
AT883213X 1958-04-10

Publications (1)

Publication Number Publication Date
GB883213A true GB883213A (en) 1961-11-29

Family

ID=25608455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11717/59A Expired GB883213A (en) 1958-04-10 1959-04-07 Method of producing moulded bodies

Country Status (1)

Country Link
GB (1) GB883213A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595293A1 (en) * 1986-03-05 1987-09-11 Ceskoslovenska Akademie Ved METHOD AND EQUIPMENT FOR THE POLYMERIZATION MOLDING OF ARTICLES, IN PARTICULAR LENTILS, FROM HYDROPHILIC GELS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595293A1 (en) * 1986-03-05 1987-09-11 Ceskoslovenska Akademie Ved METHOD AND EQUIPMENT FOR THE POLYMERIZATION MOLDING OF ARTICLES, IN PARTICULAR LENTILS, FROM HYDROPHILIC GELS

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