GB1175524A - Apparatus for use in the Manufacture of Hollow Plastics Articles - Google Patents

Apparatus for use in the Manufacture of Hollow Plastics Articles

Info

Publication number
GB1175524A
GB1175524A GB5334365A GB5334365A GB1175524A GB 1175524 A GB1175524 A GB 1175524A GB 5334365 A GB5334365 A GB 5334365A GB 5334365 A GB5334365 A GB 5334365A GB 1175524 A GB1175524 A GB 1175524A
Authority
GB
United Kingdom
Prior art keywords
sheet
hemispheres
plate
grippers
assembly
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
GB5334365A
Inventor
Norman Ashcroft Hurst
Thomas Edward Horace Gray
James Jones-Hinton
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.)
Dunlop Co Ltd
Original Assignee
Dunlop Co Ltd
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 Dunlop Co Ltd filed Critical Dunlop Co Ltd
Priority to GB5334365A priority Critical patent/GB1175524A/en
Priority to CH1773466A priority patent/CH463768A/en
Priority to SE1715566A priority patent/SE322331B/xx
Priority to DE19661604505 priority patent/DE1604505A1/en
Priority to FR87582A priority patent/FR1505703A/en
Publication of GB1175524A publication Critical patent/GB1175524A/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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Advancing Webs (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1,175,524. Making hollow articles. DUNLOP CO. Ltd. 5 Dec., 1966 [15 Dec., 1965], No. 53343/65. Heading B5A. Hollow articles, such as table-tennis balls, are made by forming hemispheres in a sheet, dividing the sheet into two, superimposing the two halves of the sheet so that the hemispheres are in alignment and finally welding and cutting the material around the peripheries of the hemispheres to form separate balls. In the apparatus shown in the Figure, the sheet having hemispheres formed therein is moved by edge engaging grippers (not shown) over a lower assembly comprising a spring-biased rear plate 422 and an apertured vertically reciprocable forward plate 425. An upper assembly 401 is then lowered on to the sheet causing spring biased pads 407 to engage the corner hemispheres in the rear half of the sheet and the blade 409 to sever the sheet into two. The assembly 401 is then withdrawn and the plate 425 lowered whilst the grippers are rotated through 180 degrees to turn the forward half of the sheet upside down. Plate 425 is then re-raised to almost contact the forward half of the sheet, after which the rear half of the sheet is pushed forward to a position overlying the forward half of the sheet by a pusher 418 carried by a slide 405 movable on the assembly 401. Just before the pusher contacts the rear half of the sheet, arms (not shown) carried by the slide 405 engage and open the grippers to allow the forward half of the sheet to fall on to the plate 425. The thus superimposed sheets are then gripped by another set of grippers and removed to a welding and cutting device.
GB5334365A 1965-12-15 1965-12-15 Apparatus for use in the Manufacture of Hollow Plastics Articles Expired GB1175524A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB5334365A GB1175524A (en) 1965-12-15 1965-12-15 Apparatus for use in the Manufacture of Hollow Plastics Articles
CH1773466A CH463768A (en) 1965-12-15 1966-12-12 Apparatus for making a hollow plastic object
SE1715566A SE322331B (en) 1965-12-15 1966-12-14
DE19661604505 DE1604505A1 (en) 1965-12-15 1966-12-15 Device for the production of hollow plastic objects
FR87582A FR1505703A (en) 1965-12-15 1966-12-15 Apparatus for manufacturing hollow plastic objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5334365A GB1175524A (en) 1965-12-15 1965-12-15 Apparatus for use in the Manufacture of Hollow Plastics Articles

Publications (1)

Publication Number Publication Date
GB1175524A true GB1175524A (en) 1969-12-23

Family

ID=10467455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5334365A Expired GB1175524A (en) 1965-12-15 1965-12-15 Apparatus for use in the Manufacture of Hollow Plastics Articles

Country Status (4)

Country Link
CH (1) CH463768A (en)
DE (1) DE1604505A1 (en)
GB (1) GB1175524A (en)
SE (1) SE322331B (en)

Also Published As

Publication number Publication date
DE1604505A1 (en) 1970-12-03
CH463768A (en) 1968-10-15
SE322331B (en) 1970-04-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees