GB225709A - A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses - Google Patents

A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses

Info

Publication number
GB225709A
GB225709A GB3100423A GB3100423A GB225709A GB 225709 A GB225709 A GB 225709A GB 3100423 A GB3100423 A GB 3100423A GB 3100423 A GB3100423 A GB 3100423A GB 225709 A GB225709 A GB 225709A
Authority
GB
United Kingdom
Prior art keywords
stem
handle
hand
various
spring
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
GB3100423A
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.)
LEONIDAS DION SPYROPOULOS
Original Assignee
LEONIDAS DION SPYROPOULOS
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 LEONIDAS DION SPYROPOULOS filed Critical LEONIDAS DION SPYROPOULOS
Priority to GB3100423A priority Critical patent/GB225709A/en
Publication of GB225709A publication Critical patent/GB225709A/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
    • B23B51/05—Drills for trepanning for cutting discs from sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

225,709. Spyropoulos, L. D. Dec. 10, 1923. Drilling -machines.- In a hand-operated drilling-machine having a stem a on which is mounted a spring- pressed revoluble arm e carrying the cutting- tools g, the depth of feed is limited by a T-headed member m engaging the cutter arms and sliding within the stem. The arm carrying the cutters is driven by pins d screwed in a boss on a driving-handle b, the cutters being fed by the spring f until the lower face of the arm contacts with the head n of the member m. The latter is adjustable by a nut p, graduations being provided if required. The stem a may be screwed into the work by the driving handle by engaging a key k in the handle with a slot in the stem by means of a knob l. The initial pressure of the feed spring is regulated by a wing-nut h. The apparatus is stated to be particularly adapted for cutting circular holes in corrugated plates. Ratchet braces.-The handle b may act as a ratchet lever.
GB3100423A 1923-12-10 1923-12-10 A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses Expired GB225709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3100423A GB225709A (en) 1923-12-10 1923-12-10 A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3100423A GB225709A (en) 1923-12-10 1923-12-10 A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses

Publications (1)

Publication Number Publication Date
GB225709A true GB225709A (en) 1924-12-11

Family

ID=10316472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3100423A Expired GB225709A (en) 1923-12-10 1923-12-10 A hand-operated adjustable cutter, for cutting blanks or holes of various diameters in metal plates of various thicknesses

Country Status (1)

Country Link
GB (1) GB225709A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9597736B2 (en) 2013-12-19 2017-03-21 Milwaukee Electric Tool Corporation Adjustable diameter hole cutter
CN111993488A (en) * 2020-08-13 2020-11-27 东方电气集团东方锅炉股份有限公司 Tube-tube plate fillet weld radiographic inspection film drilling device
US11219960B2 (en) * 2019-05-29 2022-01-11 The Boeing Company Flash-removal tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9597736B2 (en) 2013-12-19 2017-03-21 Milwaukee Electric Tool Corporation Adjustable diameter hole cutter
US10124417B2 (en) 2013-12-19 2018-11-13 Milwaukee Electric Tool Corporation Adjustable diameter hole cutter
US10576553B2 (en) 2013-12-19 2020-03-03 Milwaukee Electric Tool Corporation Adjustable diameter hole cutter
US11219960B2 (en) * 2019-05-29 2022-01-11 The Boeing Company Flash-removal tool
CN111993488A (en) * 2020-08-13 2020-11-27 东方电气集团东方锅炉股份有限公司 Tube-tube plate fillet weld radiographic inspection film drilling device

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