GB620945A - Improvements in or relating to apparatus for making paper and like bags - Google Patents

Improvements in or relating to apparatus for making paper and like bags

Info

Publication number
GB620945A
GB620945A GB3218/47A GB321847A GB620945A GB 620945 A GB620945 A GB 620945A GB 3218/47 A GB3218/47 A GB 3218/47A GB 321847 A GB321847 A GB 321847A GB 620945 A GB620945 A GB 620945A
Authority
GB
United Kingdom
Prior art keywords
bag
tube
nose
piece
bar
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
GB3218/47A
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.)
ES&A Robinson Canada Ltd
ES&A Robinson Ltd
Original Assignee
ES&A Robinson Canada Ltd
ES&A Robinson 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 ES&A Robinson Canada Ltd, ES&A Robinson Ltd filed Critical ES&A Robinson Canada Ltd
Priority to GB3218/47A priority Critical patent/GB620945A/en
Publication of GB620945A publication Critical patent/GB620945A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/004—Closing bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Landscapes

  • Making Paper Articles (AREA)

Abstract

620,945. Paper-bag machines. ROBINSON, Ltd., E. S. & A. DAVIES, K. W., and NICHOLAS, J. Feb. 3, 1947, No. 3218. [Class 94(ii)] A machine for making block bottom bags is provided with a nose-piece 33, for forming the bottom, having a table 62, facing the approaching bag tube, a vertical pillar 64 which has at least a portion displaced to one side of the centre of the line of bag approach, and two fingers 68, 69 which rotate on an axis or axes lying parallel to the line of approach of the bag tube. The fingers are placed one on each side of the nose-piece and are angularly displaced to press downwards two flaps 76, 77 of the bag bottom so that the edge of one overlaps the other, to which it is stuck. The rear edge 66 of the nose-piece is bent outwards to help the overlapping of the flaps 76, 77. Rolls 24, 25 have die and punch means to form a horse-shoe shaped cut in the web 23, drawn from a roll 22. This causes the bag to have a tongue 39, which is secured to the bag bottom, and a thumb notch 47 at the top of a bag to facilitate opening. The web is folded into a tube around a former 29 and a reciprocating bar 37 turns over the tongue 39 which has been forced up by a spring 40. The tube then passes between a cutting roll 32 and a fixed knife 44 where it is severed into bag lengths. The shape of the cut may be varied in different bags. Means to open the leading edge of a bag comprises a bar 48 with tongues 60, 61 which guide the bottom part of the tube under the nose-piece 33 and the upper part over the top of the table 62. The bar is reciprocated by linkage 55, 56 so that it is drawn backwards to clear the cutters 44, 45 during the tube-severing operation. A creasing bar 73 is reciprocated above the tube and below the nose-piece to cause the diamond-shaped bag bottom to fold over.
GB3218/47A 1947-02-03 1947-02-03 Improvements in or relating to apparatus for making paper and like bags Expired GB620945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3218/47A GB620945A (en) 1947-02-03 1947-02-03 Improvements in or relating to apparatus for making paper and like bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3218/47A GB620945A (en) 1947-02-03 1947-02-03 Improvements in or relating to apparatus for making paper and like bags

Publications (1)

Publication Number Publication Date
GB620945A true GB620945A (en) 1949-04-01

Family

ID=9754185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3218/47A Expired GB620945A (en) 1947-02-03 1947-02-03 Improvements in or relating to apparatus for making paper and like bags

Country Status (1)

Country Link
GB (1) GB620945A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008561B (en) * 1952-10-23 1957-05-16 Holweg Const Mec Method and device for the continuous production of cross-bottom bags from paper, a transparent skin or any other, in particular fiber-free material
DE1153679B (en) * 1958-07-03 1963-08-29 Yves Maxime Roland Dense packing bag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008561B (en) * 1952-10-23 1957-05-16 Holweg Const Mec Method and device for the continuous production of cross-bottom bags from paper, a transparent skin or any other, in particular fiber-free material
DE1153679B (en) * 1958-07-03 1963-08-29 Yves Maxime Roland Dense packing bag

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