GB191318617A - Improvements in and relating to Rotary Cutting Tools. - Google Patents

Improvements in and relating to Rotary Cutting Tools.

Info

Publication number
GB191318617A
GB191318617A GB191318617DA GB191318617A GB 191318617 A GB191318617 A GB 191318617A GB 191318617D A GB191318617D A GB 191318617DA GB 191318617 A GB191318617 A GB 191318617A
Authority
GB
United Kingdom
Prior art keywords
piston
drill
pressure
cutters
head
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 - Lifetime
Application number
Inventor
Hermann Schoening
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.)
Individual
Original Assignee
Individual
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 of GB191318617A publication Critical patent/GB191318617A/en
Application filed by Individual filed Critical Individual
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Shearing Machines (AREA)

Abstract

18,617. Schoening, H., [Firm of]. Aug. 16, 1912, [Convention date]. Void. [Published under Section 91 of the Act.] Drills and cutters.-An adjustable annular pin drill has the cutters detachably secured in a head g interchangeably mounted on the coned portion h of the drill body. The centre point v is adjustably mounted in a piston-rod c controlled as to pressure on the work during cutting, by fluid allowed to pass from above to below the piston d by a valve o provided with a graduated head for setting to give a predetermined pressure. A ring r loose on the drill may be held by the hand to reduce automatically the pressure as cutting proceeds by means of a star wheel y. The piston is returned by means such as a light spring w, a ball valve x permitting rapid return of the fluid.
GB191318617D 1912-08-16 1912-08-16 Improvements in and relating to Rotary Cutting Tools. Expired - Lifetime GB191318617A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE271761T 1912-08-16

Publications (1)

Publication Number Publication Date
GB191318617A true GB191318617A (en)

Family

ID=43502546

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191318617D Expired - Lifetime GB191318617A (en) 1912-08-16 1912-08-16 Improvements in and relating to Rotary Cutting Tools.

Country Status (3)

Country Link
DE (1) DE271761C (en)
FR (1) FR462116A (en)
GB (1) GB191318617A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110682369B (en) * 2019-10-30 2021-06-18 重庆涛扬建材有限公司 Punching process for special-shaped holes of wood pallet

Also Published As

Publication number Publication date
DE271761C (en) 1914-03-19
FR462116A (en) 1914-01-20

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