GB356942A - A drilling attachment for facilitating the drilling of closely spaced holes - Google Patents

A drilling attachment for facilitating the drilling of closely spaced holes

Info

Publication number
GB356942A
GB356942A GB2685530A GB2685530A GB356942A GB 356942 A GB356942 A GB 356942A GB 2685530 A GB2685530 A GB 2685530A GB 2685530 A GB2685530 A GB 2685530A GB 356942 A GB356942 A GB 356942A
Authority
GB
United Kingdom
Prior art keywords
drilling
drill
attachment
jig
sleeve
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
GB2685530A
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
Application filed by Individual filed Critical Individual
Priority to GB2685530A priority Critical patent/GB356942A/en
Publication of GB356942A publication Critical patent/GB356942A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/28—Drill jigs for workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2247/00—Details of drilling jigs
    • B23B2247/08—Jigs for drilling overlapping or interfering holes

Landscapes

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

Abstract

356,942. Drilling-machines. HUTCHINS, F., Rock Bank, Bollington, near Macclesfield, Cheshire. Sept. 9, 1930, No. 26855. [Class 83 (iii).] A n attachment for drilling machines to facilitate the drilling of closely - spaced holes, particularly when cutting sheet metal to a required shape, has a pilot piece, fastened to a jig for the drill, which fits into the hole adjacent that being drilled. A split taper collet 2 and sleeve 5 of ordinary construction is used for securing the drill and is surrounded by a non-rotating member 6 held in place by a screwed ring 7 and fibre washer 8 ; ball bearings 21 are inserted between the upper end of the member 6 and sleeve 5 for taking the thrust of a compression spring 13 used to press a rotatable jig-carrying member 11 in a downward direction. The jig 14, pointed to follow guide lines and cut away underneath to show the point of the drill, carries the pilot piece 17, which is grooved to allow the drill holes to intersect, and is secured in the bush 11 by a bolt shown in Fig. 3. During drilling the member 11 is pressed by the spring 13 against the surface of the work but a collar 12 limits its downward movement when the attachment is lifted clear.
GB2685530A 1930-09-09 1930-09-09 A drilling attachment for facilitating the drilling of closely spaced holes Expired GB356942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2685530A GB356942A (en) 1930-09-09 1930-09-09 A drilling attachment for facilitating the drilling of closely spaced holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2685530A GB356942A (en) 1930-09-09 1930-09-09 A drilling attachment for facilitating the drilling of closely spaced holes

Publications (1)

Publication Number Publication Date
GB356942A true GB356942A (en) 1931-09-17

Family

ID=10250306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2685530A Expired GB356942A (en) 1930-09-09 1930-09-09 A drilling attachment for facilitating the drilling of closely spaced holes

Country Status (1)

Country Link
GB (1) GB356942A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592432A (en) * 1949-08-25 1952-04-08 Glenn L Martin Co Corrugation drilling tool
US2612793A (en) * 1950-11-17 1952-10-07 Robert F Krainz Hole spacing and centering device
US2625062A (en) * 1948-09-01 1953-01-13 Bernard R Heil Drill guide
US2670637A (en) * 1951-07-18 1954-03-02 Frank M Hardy Drill guide
US2674906A (en) * 1950-08-31 1954-04-13 Robert F Krainz Hole spacing attachment for drill presses
US2811878A (en) * 1954-10-01 1957-11-05 Jr Adolphus J Morgan Tools for making slots in metal by use of a drill
DE3518755A1 (en) * 1985-05-24 1986-11-27 Artur Dr.H.C. 7244 Waldachtal Fischer Device for accurate spot drilling with a portable drilling machine
GB2202471A (en) * 1987-03-24 1988-09-28 Roxbury Ltd Drill grinding
WO1988010166A1 (en) * 1987-06-25 1988-12-29 Sandor Janos Rozsa Device for drilling holes
GB2246730A (en) * 1990-08-09 1992-02-12 Jobs Spa Apparatus with floating tool for drilling, boring, flaring and the like at a set depth using jigs
US9393628B1 (en) * 2013-10-15 2016-07-19 GAP Investments, LLC Power tool assemblies, power tool supports, and methods for using power tools
CN107983991A (en) * 2017-12-06 2018-05-04 天津工业大学 A kind of aramid fiber strengthens composite material drill unit
US10272502B1 (en) * 2017-11-01 2019-04-30 The Boeing Company Alignment device for aligning a drill bit with a pilot hole

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625062A (en) * 1948-09-01 1953-01-13 Bernard R Heil Drill guide
US2592432A (en) * 1949-08-25 1952-04-08 Glenn L Martin Co Corrugation drilling tool
US2674906A (en) * 1950-08-31 1954-04-13 Robert F Krainz Hole spacing attachment for drill presses
US2612793A (en) * 1950-11-17 1952-10-07 Robert F Krainz Hole spacing and centering device
US2670637A (en) * 1951-07-18 1954-03-02 Frank M Hardy Drill guide
US2811878A (en) * 1954-10-01 1957-11-05 Jr Adolphus J Morgan Tools for making slots in metal by use of a drill
DE3518755A1 (en) * 1985-05-24 1986-11-27 Artur Dr.H.C. 7244 Waldachtal Fischer Device for accurate spot drilling with a portable drilling machine
GB2202471A (en) * 1987-03-24 1988-09-28 Roxbury Ltd Drill grinding
WO1988010166A1 (en) * 1987-06-25 1988-12-29 Sandor Janos Rozsa Device for drilling holes
GB2246730A (en) * 1990-08-09 1992-02-12 Jobs Spa Apparatus with floating tool for drilling, boring, flaring and the like at a set depth using jigs
GB2246730B (en) * 1990-08-09 1994-09-21 Jobs Spa Apparatus with floating tool for drilling, boring, flaring and the like at a set depth using jigs
US9393628B1 (en) * 2013-10-15 2016-07-19 GAP Investments, LLC Power tool assemblies, power tool supports, and methods for using power tools
US10272502B1 (en) * 2017-11-01 2019-04-30 The Boeing Company Alignment device for aligning a drill bit with a pilot hole
CN107983991A (en) * 2017-12-06 2018-05-04 天津工业大学 A kind of aramid fiber strengthens composite material drill unit

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