GB1278016A - Improvements in or relating to casting eyeglass frames or parts thereof - Google Patents

Improvements in or relating to casting eyeglass frames or parts thereof

Info

Publication number
GB1278016A
GB1278016A GB1770870A GB1770870A GB1278016A GB 1278016 A GB1278016 A GB 1278016A GB 1770870 A GB1770870 A GB 1770870A GB 1770870 A GB1770870 A GB 1770870A GB 1278016 A GB1278016 A GB 1278016A
Authority
GB
United Kingdom
Prior art keywords
mixture
parts
mould
april
relating
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
GB1770870A
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.)
American Optical Corp
Original Assignee
American Optical 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 American Optical Corp filed Critical American Optical Corp
Publication of GB1278016A publication Critical patent/GB1278016A/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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • 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
    • B29D12/00—Producing frames
    • B29D12/02—Spectacle frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Epoxy Resins (AREA)

Abstract

1278016 Moulding spectacle frames AMERICAN OPTICAL CORP 14 April 1970 [15 April 1969] 17708/70 Heading B5A Spectacle frames, or parts thereof, are produced by mixing liquid, substantially 100% reactive solutions of an epoxy composition and hardener, preheating the mixture to less than 200‹ F., metering it into the mould cavities at a rate preventing air bubble formation, heating the mould to polymerize the mixture and removing and degating the products. The mixture may be moulded under pressure and is preferably degassed before moulding by placing under vacuum after mixing. It is preferably fed into the bottom of the mould cavity.
GB1770870A 1969-04-15 1970-04-14 Improvements in or relating to casting eyeglass frames or parts thereof Expired GB1278016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81637169A 1969-04-15 1969-04-15

Publications (1)

Publication Number Publication Date
GB1278016A true GB1278016A (en) 1972-06-14

Family

ID=25220424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1770870A Expired GB1278016A (en) 1969-04-15 1970-04-14 Improvements in or relating to casting eyeglass frames or parts thereof

Country Status (5)

Country Link
AT (1) AT326344B (en)
CA (1) CA924465A (en)
DE (1) DE2014120A1 (en)
FR (1) FR2043353A5 (en)
GB (1) GB1278016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828926A1 (en) * 1977-07-13 1979-01-25 Essilor Int METHOD OF MANUFACTURING EYEGLASSES FROM PLASTIC

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134381A1 (en) * 1983-08-24 1985-03-20 Gianna Marchese Method for making spectacles frames

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828926A1 (en) * 1977-07-13 1979-01-25 Essilor Int METHOD OF MANUFACTURING EYEGLASSES FROM PLASTIC

Also Published As

Publication number Publication date
AT326344B (en) 1975-12-10
CA924465A (en) 1973-04-17
DE2014120A1 (en) 1970-10-29
FR2043353A5 (en) 1971-02-12
ATA253770A (en) 1975-02-15

Similar Documents

Publication Publication Date Title
GB1248623A (en) Cured polyurethane compositions
GB1342975A (en) Closure means for containers
ES481521A1 (en) Method of producing articles from thermo setting resin
GB1323343A (en) Method of producing a thick-walled cured plastics moulding
GB994017A (en) Dies, and method and apparatus for making them
ES421780A1 (en) Method and apparatus for production of casting molds
GB1015536A (en) Injection moulding thermoplastic applique onto a thermoplastic substrate
GB1318792A (en) Apparatus for the manufacture of moulded components
GB1339445A (en) Production of laminar articles
GB1278016A (en) Improvements in or relating to casting eyeglass frames or parts thereof
GB1328872A (en) Method of forming a thermoplastic article
CN205326182U (en) Oil pressure changes injection moulding mould
ES400763A1 (en) Moulding of metallic articles
GB1278017A (en) Improvements in or relating to moulding eyeglass frame parts
GB1169121A (en) Use of Epoxide Resins for Casting Spectacle Frames or Parts Thereof
GB1042096A (en) Improvements in or relating to centrifugal casting
JPS5775435A (en) Liquid transfer molding
JPS5228869A (en) Process for molding and the mold and heat-radiation header for the pro cess
GB1463633A (en) Apparatus for forming casting moulds
JPS5770617A (en) Molding of lens
GB1165343A (en) Moulding Fibre Glass Articles
CN209699745U (en) A kind of fibre reinforced composites unsaturated polyester resin frame production mould
GB1115345A (en) Method of and apparatus for the production of a body from a slip in a porous mould
GB1150106A (en) A Process for the Production of Rubber Articles in a Mould, and Articles Thus Produced
JPS5724613A (en) Panel type filter

Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
SPA Amended specification published
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee