GB754396A - Improved method for manufacturing semi-circular shells from slabs of mineral wool - Google Patents

Improved method for manufacturing semi-circular shells from slabs of mineral wool

Info

Publication number
GB754396A
GB754396A GB2273654A GB2273654A GB754396A GB 754396 A GB754396 A GB 754396A GB 2273654 A GB2273654 A GB 2273654A GB 2273654 A GB2273654 A GB 2273654A GB 754396 A GB754396 A GB 754396A
Authority
GB
United Kingdom
Prior art keywords
blades
blade
cut
tubes
half
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
GB2273654A
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.)
Statens Skogsindustrier AB
Original Assignee
Statens Skogsindustrier AB
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
Priority to SE754396X priority Critical
Application filed by Statens Skogsindustrier AB filed Critical Statens Skogsindustrier AB
Publication of GB754396A publication Critical patent/GB754396A/en
Application status is Expired legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/12Cylinder saws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B19/00Other reciprocating saws with power drive; Fret-saws
    • B27B19/006Other reciprocating saws with power drive; Fret-saws with oscillating saw blades; Hand saws with oscillating saw blades
    • B27B19/008Other reciprocating saws with power drive; Fret-saws with oscillating saw blades; Hand saws with oscillating saw blades having a plurality of saw blades or saw blades having plural cutting zones

Abstract

754,396. Sawing AKTIEBOLAGET STATENS SKOGSINDUSTRIER. Aug. 5, 1954 [Aug. 10, 1953; May 3, 1954]. No, 22736/54. Class 145 [Also in Group VIII] Thick-walled half-tubes are cut from blocks of mineral wool by feeding the block towards and past at least two saws or knives which are in the form of continuously-rotated cylindrical blades 12 or arcuately-reciprocated bent blades 20, the axes of the blades lying along a surface of the block and the blades being supported so that they have free arcs corresponding to the desired length of semicircular cut; the radial distance apart of the blades corresponds to the required thickness of the half-tubes and two machines having blades of different radii may be placed directly behind one another or two or more concentric blades may be provided to cut one or more half-tubes in a single operation. As shown in Fig. 2, the cylindrical blade 12 is held against a motordriven rubber-covered roller 5 by a roller 7 on an arm 8 pivoted at 11 and is additionally supported radially and axially by flanged rollers 18 carriel by bars 16 which are angularly and axially adjustable in blocks 13. The blade 12 may alternatively have holes for engagement with a toothed driving roller. As shown in Fig. 3, the bent blade 20 is attached to an arcuate slide 22 which is supported by members 23 and has a pin 24 engaging a slot in a reciprocating rod 25; alternatively, a radial slot on a lug on the slide 22 may be engaged by a crank pin on a rotating shaft. Fig. 8 shows four concentric blades 31, 32, 33 and 34 mounted on a shaft 36 having a driving crank 37, the inner blade 34 being formed on a sleeve 39 provided with a deflector 41 for leading away the waste core cut by the blade 34.
GB2273654A 1953-08-10 1954-08-05 Improved method for manufacturing semi-circular shells from slabs of mineral wool Expired GB754396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE754396X 1953-08-10

Publications (1)

Publication Number Publication Date
GB754396A true GB754396A (en) 1956-08-08

Family

ID=20326550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2273654A Expired GB754396A (en) 1953-08-10 1954-08-05 Improved method for manufacturing semi-circular shells from slabs of mineral wool

Country Status (1)

Country Link
GB (1) GB754396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728118A (en) * 1995-03-29 1998-03-17 Linvatec Corporation Apparatus and method for harvesting a bone-tendon-bone ligament graft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728118A (en) * 1995-03-29 1998-03-17 Linvatec Corporation Apparatus and method for harvesting a bone-tendon-bone ligament graft
US5843110A (en) * 1995-03-29 1998-12-01 Linvatec Corporation Apparatus and method for harvesting a bone-tendon-bone ligament graft
US5897570A (en) * 1995-03-29 1999-04-27 Linvatec Corporation Apparatus and method for harvesting a bone-tendon-bone ligament graft
US6106535A (en) * 1995-03-29 2000-08-22 Linvatec Corporation Apparatus and method for harvesting a bone-tendon-bone ligament graft

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