GB627655A - Pressed glass articles and methods and means of making the same - Google Patents

Pressed glass articles and methods and means of making the same

Info

Publication number
GB627655A
GB627655A GB1526647A GB1526647A GB627655A GB 627655 A GB627655 A GB 627655A GB 1526647 A GB1526647 A GB 1526647A GB 1526647 A GB1526647 A GB 1526647A GB 627655 A GB627655 A GB 627655A
Authority
GB
United Kingdom
Prior art keywords
glass
constrictions
mould
until
holophane
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
GB1526647A
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.)
Holophane Corp
Original Assignee
Holophane Corp
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 Holophane Corp filed Critical Holophane Corp
Priority to GB1526647A priority Critical patent/GB627655A/en
Publication of GB627655A publication Critical patent/GB627655A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06Construction of plunger or mould
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06Construction of plunger or mould
    • C03B11/08Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/082Construction of plunger or mould for making solid articles, e.g. lenses having profiled, patterned or microstructured surfaces
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/40Product characteristics
    • C03B2215/41Profiled surfaces
    • C03B2215/412Profiled surfaces fine structured, e.g. fresnel lenses, prismatic reflectors, other sharp-edged surface profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

627,655. Pressing glass. HOLOPHANE, Ltd. (Holophane Co., Inc.). June 10, 1947, No. 15266. [Class 56] Shallow non-circular glass articles, e.g. of polygonal dished or flat form, are pressed out in a mould whose periphery impedes but does not arrest the outward flow of the glass; the glass is thus constrained to fill the entire mould and may be reduced to a predetermined thickness therein regardless of the original amount supplied. The mould 20 shown in Fig. 4 and the lower part of Fig. 6 for making square plates has lands 25 which with corresponding parts 29 on the stainless steel plunger 21 form peripheral constrictions between the fluted &c. interior surfaces 22, 23 and the cut away outer portions 24. In operation the glass 30 spreads in all directions until it meets the nearest parts of the lands and then continues as at 31, 32 until the corners are filled; excess glass is squeezed out through the constrictions until the plunger 21 meets a stop defining the required thickness; after annealing, the excess glass is removed from the plate by scoring along the thin parts corresponding to the constrictions and the edges are ground to size.
GB1526647A 1947-06-10 1947-06-10 Pressed glass articles and methods and means of making the same Expired GB627655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1526647A GB627655A (en) 1947-06-10 1947-06-10 Pressed glass articles and methods and means of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1526647A GB627655A (en) 1947-06-10 1947-06-10 Pressed glass articles and methods and means of making the same

Publications (1)

Publication Number Publication Date
GB627655A true GB627655A (en) 1949-08-12

Family

ID=10056006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1526647A Expired GB627655A (en) 1947-06-10 1947-06-10 Pressed glass articles and methods and means of making the same

Country Status (1)

Country Link
GB (1) GB627655A (en)

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