GB625229A - Improved means for cutting circular holes in sheet metal or other material - Google Patents

Improved means for cutting circular holes in sheet metal or other material

Info

Publication number
GB625229A
GB625229A GB16925/47A GB1692547A GB625229A GB 625229 A GB625229 A GB 625229A GB 16925/47 A GB16925/47 A GB 16925/47A GB 1692547 A GB1692547 A GB 1692547A GB 625229 A GB625229 A GB 625229A
Authority
GB
United Kingdom
Prior art keywords
sheet metal
circular holes
blades
tool
cutting circular
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
GB16925/47A
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.)
ERNEST LEONARD SIMMONS
FRY S LONDON Ltd
Original Assignee
ERNEST LEONARD SIMMONS
FRY S LONDON 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 ERNEST LEONARD SIMMONS, FRY S LONDON Ltd filed Critical ERNEST LEONARD SIMMONS
Priority to GB16925/47A priority Critical patent/GB625229A/en
Publication of GB625229A publication Critical patent/GB625229A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0426—Drills for trepanning with centering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/24—Overall form of drilling tools
    • B23B2251/247—Drilling tools having a working portion at both ends of the shank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0411—Drills for trepanning with stepped tubular cutting bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

625,229. Annular-cutters. FRY'S (LONDON), Ltd., and SIMMONS, E. L. June 26, 1947, No. 16925. [Class 83 (iii)] A tool for cutting circular holes in sheet metal or other material by means of a cylindrical hacksaw blade, comprises a boss F which, in addition tc having a longitudinal passage h therein and being adapted to mount a cutting blade a, b at either end, has two or more transverse projections, each of which has a passage h<SP>1</SP> therein and is adapted to receive a cutting blade c, d. In use, the tool is mounted on a twist drill or centre guide e<SP>1</SP> so that the latter passes through either the longitudinal passage h (for using one or other of the blades a, b according to which occupies the lowermost position), or one of the through transverse passages h<SP>1</SP> (for using whichever of the blades c, d is then lowermost). The tool is secured on the drill by a lock-screw g. The blades a, b, c, d, are of different diameters, and are secured in position by screws i.
GB16925/47A 1947-06-26 1947-06-26 Improved means for cutting circular holes in sheet metal or other material Expired GB625229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16925/47A GB625229A (en) 1947-06-26 1947-06-26 Improved means for cutting circular holes in sheet metal or other material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16925/47A GB625229A (en) 1947-06-26 1947-06-26 Improved means for cutting circular holes in sheet metal or other material

Publications (1)

Publication Number Publication Date
GB625229A true GB625229A (en) 1949-06-23

Family

ID=10086128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16925/47A Expired GB625229A (en) 1947-06-26 1947-06-26 Improved means for cutting circular holes in sheet metal or other material

Country Status (1)

Country Link
GB (1) GB625229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142288U (en) * 1977-04-11 1977-10-28
WO2012168113A1 (en) * 2011-06-10 2012-12-13 Seco Tools Ab Cutting insert having a plurality of cutting elements thereon and cutting tool therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142288U (en) * 1977-04-11 1977-10-28
WO2012168113A1 (en) * 2011-06-10 2012-12-13 Seco Tools Ab Cutting insert having a plurality of cutting elements thereon and cutting tool therefor

Similar Documents

Publication Publication Date Title
GB625229A (en) Improved means for cutting circular holes in sheet metal or other material
GB937767A (en) Improvements in or relating to cutting tools
GB916354A (en) Auger having replaceable cutters
GB170193A (en) Improvements in rotary cutters and holders for same
GB765651A (en) Improvements in or relating to drills
ES237301U (en) Percussive power tool with a flexible blade
GB404836A (en) Improvements in or relating to expanding boring tools
GB702110A (en) Improvements relating to reamers
GB658510A (en) A reamer
GB608157A (en) Improvements in floating reamers
GB238675A (en) Improvements in or relating to annular drills or cutters
GB551265A (en) Improved cutter for cutting bitumen felt
GB608357A (en) Improvements relating to tool holders
GB627666A (en) Improvements relating to stone cutters
JPS5318888A (en) Tapered punching device
GB618648A (en) Improvements in tools for wood working machines
GB826956A (en) Improvements in machine reamers
GB632136A (en) Improvements in hand-operated guillotines
GB1205673A (en) Improvements in tools, and particularly single-blade reamers
GB461440A (en) An improved cutting tool for use with millboard, wall-board and other like material
GB694653A (en) Improvements in metal shears for shearing metal and other sheets
GB628851A (en) Improvements in work rest blades or guide ways
GB775354A (en) Improvements in or relating to cutting devices
GB539169A (en) Mason&#39;s interchangeable tool
GB846065A (en) Improvements in reamers, and like tools