GB736490A - Improved drill for boring dowel holes - Google Patents

Improved drill for boring dowel holes

Info

Publication number
GB736490A
GB736490A GB3566353A GB3566353A GB736490A GB 736490 A GB736490 A GB 736490A GB 3566353 A GB3566353 A GB 3566353A GB 3566353 A GB3566353 A GB 3566353A GB 736490 A GB736490 A GB 736490A
Authority
GB
United Kingdom
Prior art keywords
drill
teeth
dowel holes
improved drill
cutting edges
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
GB3566353A
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 date
Priority to CH298217D priority Critical patent/CH298217A/en
Priority to DEL11450A priority patent/DE915982C/en
Priority to CH310708D priority patent/CH310708A/en
Application filed by Individual filed Critical Individual
Priority to GB3566353A priority patent/GB736490A/en
Publication of GB736490A publication Critical patent/GB736490A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G15/00—Boring or turning tools; Augers

Abstract

736,490. Augers. DEGEN, H. Dec. 22, 1953, No. 35663/53. Class 83 (3). [Also in Group XXIII] A spiral drill for drilling dowel holes has fine teeth c on the cutting edges, the teeth being of opposite hand to the cutting edges. This facilitates withdrawal of the drill without smoothing the bore-hole roughened by the teeth c during drilling. A lead point e may be provided and a waist portion d rendering the drill slightly flexible to compensate for chucking errors. The angle α of the teeth c is preferably of the order of 7 degrees, and the drill may be used at speeds between 6000 and 12,000 r.p.m.
GB3566353A 1951-11-21 1953-12-22 Improved drill for boring dowel holes Expired GB736490A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH298217D CH298217A (en) 1951-11-21 1951-11-21 Drill for drilling dowel holes.
DEL11450A DE915982C (en) 1951-11-21 1952-01-31 Drills and milling bits for drilling holes or the like.
CH310708D CH310708A (en) 1953-12-22 1953-02-25 Drill for drilling dowel holes.
GB3566353A GB736490A (en) 1953-12-22 1953-12-22 Improved drill for boring dowel holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3566353A GB736490A (en) 1953-12-22 1953-12-22 Improved drill for boring dowel holes

Publications (1)

Publication Number Publication Date
GB736490A true GB736490A (en) 1955-09-07

Family

ID=10380203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3566353A Expired GB736490A (en) 1951-11-21 1953-12-22 Improved drill for boring dowel holes

Country Status (2)

Country Link
CH (1) CH310708A (en)
GB (1) GB736490A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219229A (en) * 1988-05-03 1989-12-06 Kwo Werkzeuge Gmbh Drill bit
US6669396B2 (en) 1997-06-09 2003-12-30 Sfs Industrie Holding Ag Connecting element for connecting at least two wooden construction parts and a joint plate
WO2022266417A1 (en) * 2021-06-18 2022-12-22 Apex Brands, Inc. Boring tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933380C2 (en) * 1979-08-17 1983-07-28 Zbigniew 8240 Berchtesgaden Mroczkowski Jigsaw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219229A (en) * 1988-05-03 1989-12-06 Kwo Werkzeuge Gmbh Drill bit
US6669396B2 (en) 1997-06-09 2003-12-30 Sfs Industrie Holding Ag Connecting element for connecting at least two wooden construction parts and a joint plate
WO2022266417A1 (en) * 2021-06-18 2022-12-22 Apex Brands, Inc. Boring tool

Also Published As

Publication number Publication date
CH310708A (en) 1955-10-31

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