AU7994994A - An apparatus for forming a shoulder in a ladder rung - Google Patents

An apparatus for forming a shoulder in a ladder rung

Info

Publication number
AU7994994A
AU7994994A AU79949/94A AU7994994A AU7994994A AU 7994994 A AU7994994 A AU 7994994A AU 79949/94 A AU79949/94 A AU 79949/94A AU 7994994 A AU7994994 A AU 7994994A AU 7994994 A AU7994994 A AU 7994994A
Authority
AU
Australia
Prior art keywords
shoulder
forming
ladder rung
rung
ladder
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.)
Abandoned
Application number
AU79949/94A
Inventor
Hannu Vainio
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.)
BLUE STEEL Oy
Original Assignee
BLUE STEEL Oy
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 BLUE STEEL Oy filed Critical BLUE STEEL Oy
Publication of AU7994994A publication Critical patent/AU7994994A/en
Abandoned 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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
    • B21D17/025—Forming single grooves in sheet metal or tubular or hollow articles by pressing by pressing tubes axially
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
AU79949/94A 1993-10-22 1994-10-21 An apparatus for forming a shoulder in a ladder rung Abandoned AU7994994A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI934682 1993-10-22
FI934682A FI97079C (en) 1993-10-22 1993-10-22 Device for forming a shoulder ladder to Poland
PCT/FI1994/000477 WO1995011367A1 (en) 1993-10-22 1994-10-21 An apparatus for forming a shoulder in a ladder rung

Publications (1)

Publication Number Publication Date
AU7994994A true AU7994994A (en) 1995-05-08

Family

ID=8538826

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79949/94A Abandoned AU7994994A (en) 1993-10-22 1994-10-21 An apparatus for forming a shoulder in a ladder rung

Country Status (3)

Country Link
AU (1) AU7994994A (en)
FI (1) FI97079C (en)
WO (1) WO1995011367A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119435A (en) * 1961-08-11 1964-01-28 Greenman Murry Apparatus for connecting presemiflanged rungs to preapertured spaced ladder rails
US3279051A (en) * 1965-04-05 1966-10-18 Minshall Aubrey Wilson Method of forming a joint between a metal rail and a hollow metal rung
US3280454A (en) * 1965-06-03 1966-10-25 Howard B Rich Inc Machine for forming ladders
US4036325A (en) * 1975-06-30 1977-07-19 Shakespeare Company Rung assembly for a ladder and a method of making the rung assembly

Also Published As

Publication number Publication date
WO1995011367A1 (en) 1995-04-27
FI934682A0 (en) 1993-10-22
FI934682A (en) 1995-04-23
FI97079C (en) 1996-10-10
FI97079B (en) 1996-06-28

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