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GB369747A - Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked - Google Patents

Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked

Info

Publication number
GB369747A
GB369747A GB910031A GB910031A GB369747A GB 369747 A GB369747 A GB 369747A GB 910031 A GB910031 A GB 910031A GB 910031 A GB910031 A GB 910031A GB 369747 A GB369747 A GB 369747A
Authority
GB
United Kingdom
Prior art keywords
punching
raked
holes
bolster
square holes
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
GB910031A
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.)
MCDONALD AND CRESWICK Ltd
Original Assignee
MCDONALD AND CRESWICK 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 MCDONALD AND CRESWICK Ltd filed Critical MCDONALD AND CRESWICK Ltd
Priority to GB910031A priority Critical patent/GB369747A/en
Publication of GB369747A publication Critical patent/GB369747A/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

369,747. Making fencing. McDONALD & CRESWICK, Ltd. and McDONALD, W., 20, Harrison Road, Edinburgh. March 25, 1931, No. 9100. [Classes 83 (ii) and 83 (iv).] Perforating; punches &c.-In punching inclined holes in raked stair railings, the flat bar 18, provided with holes 19, is supported on a bolster 10 slidable on a support 6. The punch 16 has an inclined face 16b which co-operates with a die-plate 10a on the bolster in the manner shown in Fig. 5. The bolster is positioned against a screw 11 and is moved laterally by the action of the punch or mechanically. When the holes have been bevelled on one side, the rod is reversed and the operation repeated on the other side 23, Fig. 5.
GB910031A 1931-03-25 1931-03-25 Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked Expired GB369747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB910031A GB369747A (en) 1931-03-25 1931-03-25 Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB910031A GB369747A (en) 1931-03-25 1931-03-25 Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked

Publications (1)

Publication Number Publication Date
GB369747A true GB369747A (en) 1932-03-31

Family

ID=9865334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB910031A Expired GB369747A (en) 1931-03-25 1931-03-25 Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked

Country Status (1)

Country Link
GB (1) GB369747A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875829A (en) * 1954-12-01 1959-03-03 Bruno S Patrick Apparatus for stamping surfaces
US3504588A (en) * 1967-11-29 1970-04-07 Gen Binding Corp Punching configuration
WO2005089977A1 (en) * 2004-03-18 2005-09-29 Hayes Lemmerz International, Inc. Fabricated vehicle wheel and method for producing same
US10328504B2 (en) * 2016-12-02 2019-06-25 Fca Us Llc Two-stage method of cutting ultra-high strength material sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875829A (en) * 1954-12-01 1959-03-03 Bruno S Patrick Apparatus for stamping surfaces
US3504588A (en) * 1967-11-29 1970-04-07 Gen Binding Corp Punching configuration
WO2005089977A1 (en) * 2004-03-18 2005-09-29 Hayes Lemmerz International, Inc. Fabricated vehicle wheel and method for producing same
US10328504B2 (en) * 2016-12-02 2019-06-25 Fca Us Llc Two-stage method of cutting ultra-high strength material sheet

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