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GB279322A - Improvements in and connected with lenses and the like, and/or the method of producing same - Google Patents

Improvements in and connected with lenses and the like, and/or the method of producing same

Info

Publication number
GB279322A
GB279322A GB885027A GB885027A GB279322A GB 279322 A GB279322 A GB 279322A GB 885027 A GB885027 A GB 885027A GB 885027 A GB885027 A GB 885027A GB 279322 A GB279322 A GB 279322A
Authority
GB
United Kingdom
Prior art keywords
lenses
glasses
produce
layer
different
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
GB885027A
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 GB885027A priority Critical patent/GB279322A/en
Publication of GB279322A publication Critical patent/GB279322A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/22—Uniting glass lenses, e.g. forming bifocal lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

279,322. Ustonson, C. B. March 31, 1927. Forming lenses; ornamental glassware.- Relates to a method of making glass articles which are composed of two glasses, fused together and having different charac - teristics, such as lenses or light filters. According to the invention, superposed layers x, y, Fig. 6, of different kinds of glass are pressed, when hot and plastic, between a pair of die members C, D, Fig. 7, which are so shaped as to cause a portion x<2> of one layer to be displaced into the plane of the other layer. The combined layers are ground, as shown in Fig. 8, to produce a bifocal spectacle lens, a head lamp lens for motor cars, or other article. Glasses may be combined in this way to produce a light filter of different colours or with graduated tints.
GB885027A 1927-03-31 1927-03-31 Improvements in and connected with lenses and the like, and/or the method of producing same Expired GB279322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB885027A GB279322A (en) 1927-03-31 1927-03-31 Improvements in and connected with lenses and the like, and/or the method of producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB885027A GB279322A (en) 1927-03-31 1927-03-31 Improvements in and connected with lenses and the like, and/or the method of producing same

Publications (1)

Publication Number Publication Date
GB279322A true GB279322A (en) 1927-10-27

Family

ID=9860431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB885027A Expired GB279322A (en) 1927-03-31 1927-03-31 Improvements in and connected with lenses and the like, and/or the method of producing same

Country Status (1)

Country Link
GB (1) GB279322A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992518A (en) * 1956-06-22 1961-07-18 American Optical Corp Method of making fused glass articles
US3130029A (en) * 1959-06-23 1964-04-21 Bausch & Lomb Method for making fused multifocal lenses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992518A (en) * 1956-06-22 1961-07-18 American Optical Corp Method of making fused glass articles
US3130029A (en) * 1959-06-23 1964-04-21 Bausch & Lomb Method for making fused multifocal lenses

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