GB1245921A - Improvements in or relating to chisel for splitting slate - Google Patents

Improvements in or relating to chisel for splitting slate

Info

Publication number
GB1245921A
GB1245921A GB2971067A GB2971067A GB1245921A GB 1245921 A GB1245921 A GB 1245921A GB 2971067 A GB2971067 A GB 2971067A GB 2971067 A GB2971067 A GB 2971067A GB 1245921 A GB1245921 A GB 1245921A
Authority
GB
United Kingdom
Prior art keywords
slate
chisel
inclined faces
degrees
splitting
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
GB2971067A
Inventor
Lazlo Lombos
Michael Robert Hughes
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.)
ROBERTSON RES Co Ltd
DINORWIC SLATE QUARRIES CO Ltd
Original Assignee
ROBERTSON RES Co Ltd
DINORWIC SLATE QUARRIES CO 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 ROBERTSON RES Co Ltd, DINORWIC SLATE QUARRIES CO Ltd filed Critical ROBERTSON RES Co Ltd
Priority to GB2971067A priority Critical patent/GB1245921A/en
Publication of GB1245921A publication Critical patent/GB1245921A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/32—Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist
    • B28D1/322—Splitting of the working materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1,245,921. Splitting slate. ROBERTSON RESEARCH CO. Ltd., and DINORWIC SLATE QUARRIES CO. Ltd. 26 Sept., 1968 [28 June, 1967], No. 29710/67. Heading B5E. A chisel for splitting slates comprises a first member 1 which has a cutting edge 4 defined by two mutually inclined faces 5, 6 and is slidable within a second member 3 having two inclined faces 7, 8 which in a first relative position of the members form respective continuations of the faces 5, 6 to form a composite chisel blade, and means for advancing the first member relative to the second. The inclined faces subtend an angle of not less than 30 degrees and not more than 135 degrees and preferably 90 degrees. The first member is slidable in a slot in the second member and, in operation, with the first member retracted in the slot, an hydraulic ram 9 moves the chisel into engagement with a piece of slate to be split until the split portions of the slate engage the inclined faces 7, 8 of the second member. Thereafter, hydraulic rams 2 advance the first member 1 at a predetermined speed into the split. In another embodiment, the crosssection of the first member has an arrowheaded cross-section.
GB2971067A 1967-06-28 1967-06-28 Improvements in or relating to chisel for splitting slate Expired GB1245921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2971067A GB1245921A (en) 1967-06-28 1967-06-28 Improvements in or relating to chisel for splitting slate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2971067A GB1245921A (en) 1967-06-28 1967-06-28 Improvements in or relating to chisel for splitting slate

Publications (1)

Publication Number Publication Date
GB1245921A true GB1245921A (en) 1971-09-15

Family

ID=10295878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2971067A Expired GB1245921A (en) 1967-06-28 1967-06-28 Improvements in or relating to chisel for splitting slate

Country Status (1)

Country Link
GB (1) GB1245921A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003080305A1 (en) * 2002-03-20 2003-10-02 Anchor Wall Systems, Inc. Masonry block splitting assembly and method
US6886551B2 (en) 2003-04-10 2005-05-03 Anchor Wall Systems, Inc. Block splitting assembly and method
US7146974B2 (en) 2004-09-13 2006-12-12 Anchor Wall Systems, Inc. Block splitting assembly and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003080305A1 (en) * 2002-03-20 2003-10-02 Anchor Wall Systems, Inc. Masonry block splitting assembly and method
US6874494B2 (en) 2002-03-20 2005-04-05 Anchor Wall Systems, Inc. Block splitting assembly and method
US6964272B2 (en) 2002-03-20 2005-11-15 Anchor Wall Systems, Inc. Block splitting assembly and method
US7004158B2 (en) 2002-03-20 2006-02-28 Anchor Wall Systems, Inc. Block splitting assembly and method
CN1302905C (en) * 2002-03-20 2007-03-07 安可墙壁体系股份有限公司 Block splitting assembly and method
AU2003218248B2 (en) * 2002-03-20 2008-09-18 Anchor Wall Systems, Inc. Masonry block splitting assembly and method
US7428900B2 (en) 2002-03-20 2008-09-30 Anchor Wall Systems, Inc. Block splitting assembly and method
US7870853B2 (en) 2002-03-20 2011-01-18 Anchor Wall Systems, Inc. Block splitting assembly and method
US8251053B2 (en) 2002-03-20 2012-08-28 Anchor Wall Systems, Inc. Block splitting assembly and method
US9102079B2 (en) 2002-03-20 2015-08-11 Anchor Wall Systems, Inc. Block splitting assembly and method
US6886551B2 (en) 2003-04-10 2005-05-03 Anchor Wall Systems, Inc. Block splitting assembly and method
US7146974B2 (en) 2004-09-13 2006-12-12 Anchor Wall Systems, Inc. Block splitting assembly and method

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