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GB422052A - Improvements in or relating to closured tins, jars, or like containers - Google Patents

Improvements in or relating to closured tins, jars, or like containers

Info

Publication number
GB422052A
GB422052A GB1854933A GB1854933A GB422052A GB 422052 A GB422052 A GB 422052A GB 1854933 A GB1854933 A GB 1854933A GB 1854933 A GB1854933 A GB 1854933A GB 422052 A GB422052 A GB 422052A
Authority
GB
United Kingdom
Prior art keywords
pimple
weakened
boundary line
scoring
containers
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
GB1854933A
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 GB1854933A priority Critical patent/GB422052A/en
Publication of GB422052A publication Critical patent/GB422052A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

422,052. Scoring. BARLOW, R., 28, Kingsway, and STUCHBERY, A. L., Chequers Work;, North Circular Road, Palmers Green, both in London. June 29, 1933, No. 18549. [Class 100 (ii)] [See also Groups XXII and XVII] A local bulge or pimple is formed in materials such as those sold under the Registered Trade Marks "Bakelite" and " Cellophane " by applying a compressing force thereto acting only in the intended boundary line of the pimple and serving to constrain the inward flow of the material to produce the pimple. As applied to the formation of breaking-pieces with weakened boundaries in containers or lids therefor, a tool 3 comprising an annular working edge 4 about a central concave portion 5<a> is pressed against a plane sheet 2 and produces a pimple 7 by inward flow of the material, with a weakened boundary line 6. A clamping- member may surround the tool. The pimple may be formed in a recessed portion to avoid accidental breakage. The boundary line previously or subsequently to the forming operation, may be weakened by scoring. The pimple may be of U-shape so that it is not completely severed when pressure is applied, or of circular, oval, or D-shape.
GB1854933A 1933-06-29 1933-06-29 Improvements in or relating to closured tins, jars, or like containers Expired GB422052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1854933A GB422052A (en) 1933-06-29 1933-06-29 Improvements in or relating to closured tins, jars, or like containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1854933A GB422052A (en) 1933-06-29 1933-06-29 Improvements in or relating to closured tins, jars, or like containers

Publications (1)

Publication Number Publication Date
GB422052A true GB422052A (en) 1934-12-31

Family

ID=10114334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1854933A Expired GB422052A (en) 1933-06-29 1933-06-29 Improvements in or relating to closured tins, jars, or like containers

Country Status (1)

Country Link
GB (1) GB422052A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350392B2 (en) 2001-08-16 2008-04-01 Rexam Beverage Can Company Can end
US7644833B2 (en) 2001-08-16 2010-01-12 Rexam Beverage Can Company Can end
US8011527B2 (en) 2007-08-10 2011-09-06 Rexam Beverage Can Company Can end with countersink
US8052005B2 (en) * 2001-08-16 2011-11-08 Rexam Beverage Can Company Can end
US8875936B2 (en) 2007-04-20 2014-11-04 Rexam Beverage Can Company Can end with negatively angled wall
US8973780B2 (en) 2007-08-10 2015-03-10 Rexam Beverage Can Company Can end with reinforcing bead

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350392B2 (en) 2001-08-16 2008-04-01 Rexam Beverage Can Company Can end
US7644833B2 (en) 2001-08-16 2010-01-12 Rexam Beverage Can Company Can end
US8052005B2 (en) * 2001-08-16 2011-11-08 Rexam Beverage Can Company Can end
US8104319B2 (en) 2001-08-16 2012-01-31 Rexam Beverage Can Company Method of forming a can end
US8328492B2 (en) 2001-08-16 2012-12-11 Rexam Beverage Can Company Can end
US8875936B2 (en) 2007-04-20 2014-11-04 Rexam Beverage Can Company Can end with negatively angled wall
US8011527B2 (en) 2007-08-10 2011-09-06 Rexam Beverage Can Company Can end with countersink
US8973780B2 (en) 2007-08-10 2015-03-10 Rexam Beverage Can Company Can end with reinforcing bead
US9540137B2 (en) 2007-08-10 2017-01-10 Rexam Beverage Can Company Can end with reinforcing bead

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