GB1039718A - Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material - Google Patents

Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material

Info

Publication number
GB1039718A
GB1039718A GB1356265A GB1356265A GB1039718A GB 1039718 A GB1039718 A GB 1039718A GB 1356265 A GB1356265 A GB 1356265A GB 1356265 A GB1356265 A GB 1356265A GB 1039718 A GB1039718 A GB 1039718A
Authority
GB
United Kingdom
Prior art keywords
wire
frame
severing
films
escher
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
GB1356265A
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 GB1356265A priority Critical patent/GB1039718A/en
Publication of GB1039718A publication Critical patent/GB1039718A/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
    • B29D7/00—Producing flat articles, e.g. films or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1,039,718. Seaming non-metallic sheet material. H. ESCHER, [trading as FIRMA GEORG ESCHER]. March 31, 1965, No. 13562/65. Heading B5K. A device for sealing and/or severing films of thermoplastic synthetic plastics material comprises a heating wire 1 extending over the entire length of the weld seam and which comprises loops 4 extending perpendicularly to the welding plane and countersunk and secured in the welding frame 2 so that when the wire 1 is in the cold condition expansion compensating gaps are formed. The loops 4 are accommodated in recesses 6 in the frame 2 and form arms 5 spreading apart which approach each other due to expansion when current is supplied to the wire 1. Pins 8 may be provided to hold the wire 1 fast. The wire 1 may be a flat strip, e.g. 0À1 x 1 mm. in cross-section. In addition to the wire 1, the frame 2 is provided with a severing wire 3, Fig. 1 (not shown). In use, a presser plate, strip or frame (not shown) presses the films to be welded against the frame 2 and the wires 1, 3.
GB1356265A 1965-03-31 1965-03-31 Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material Expired GB1039718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1356265A GB1039718A (en) 1965-03-31 1965-03-31 Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1356265A GB1039718A (en) 1965-03-31 1965-03-31 Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material

Publications (1)

Publication Number Publication Date
GB1039718A true GB1039718A (en) 1966-08-17

Family

ID=10025201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1356265A Expired GB1039718A (en) 1965-03-31 1965-03-31 Improvements in devices for joining and/or severing films of thermoplastic syntheticplastics material

Country Status (1)

Country Link
GB (1) GB1039718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679940B1 (en) * 1967-08-16 1970-12-23 Hans Beck Welding stamp for the production of packaging sleeves obtained by heat sealing two foils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679940B1 (en) * 1967-08-16 1970-12-23 Hans Beck Welding stamp for the production of packaging sleeves obtained by heat sealing two foils

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