GB840702A - Improvements in or relating to depth gauges for drill bits - Google Patents

Improvements in or relating to depth gauges for drill bits

Info

Publication number
GB840702A
GB840702A GB2242158A GB2242158A GB840702A GB 840702 A GB840702 A GB 840702A GB 2242158 A GB2242158 A GB 2242158A GB 2242158 A GB2242158 A GB 2242158A GB 840702 A GB840702 A GB 840702A
Authority
GB
United Kingdom
Prior art keywords
drill
shank
gauge
depth
drill bits
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
GB2242158A
Inventor
John James Jewitt
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.)
THOS R ELLIN FOOTPRINT WORKS L
Original Assignee
THOS R ELLIN FOOTPRINT WORKS L
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 THOS R ELLIN FOOTPRINT WORKS L filed Critical THOS R ELLIN FOOTPRINT WORKS L
Priority to GB2242158A priority Critical patent/GB840702A/en
Publication of GB840702A publication Critical patent/GB840702A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/003—Stops attached to drilling tools, tool holders or drilling machines
    • B23B49/005—Attached to the drill

Landscapes

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

Abstract

840,702. Drills. ELLIN (FOOTPRINT WORKS), Ltd., T. R. Feb. 10, 1959 [July 12, 1958], No. 22421/58. Class 83 (3). A depth gauge for woodscrew drill bits, having a flat blade 11 with drilling and countersinking cutting edges thereon as described in Specification 840,701 comprises a sheet-metal clip 1, Fig. 7, having two inwardly facing concave sides 3 for gripping the drill shank jaws 5. for engaging slots 6-8 in the shank, and a slotted portion 9 connected by angular faces 2 to the sides 3. In operation, the gauge is located in one of the slots 6-8 according to the depth of countersink required, and the drill feed is stopped when the face of portion 9 abuts the work. The gauge can be used with a twist drill having grooves in its shank the end portion 9 having a circular hole to allow insertion of the drill.
GB2242158A 1958-07-12 1958-07-12 Improvements in or relating to depth gauges for drill bits Expired GB840702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2242158A GB840702A (en) 1958-07-12 1958-07-12 Improvements in or relating to depth gauges for drill bits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2242158A GB840702A (en) 1958-07-12 1958-07-12 Improvements in or relating to depth gauges for drill bits

Publications (1)

Publication Number Publication Date
GB840702A true GB840702A (en) 1960-07-06

Family

ID=10179096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2242158A Expired GB840702A (en) 1958-07-12 1958-07-12 Improvements in or relating to depth gauges for drill bits

Country Status (1)

Country Link
GB (1) GB840702A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405797A2 (en) * 1977-10-13 1979-05-11 Fischer Artur DRILLING KIT
US4955766A (en) * 1989-11-06 1990-09-11 Sommerfeld Craig A Holding fixture for drilling pocket joints
US7798750B2 (en) 2007-08-20 2010-09-21 Allen Ip Inc. Drill guide with removeable clamp retainer
US20190047058A1 (en) * 2017-08-14 2019-02-14 Power Box Ag Drill bit holding assembly for jig and jig apparatus including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405797A2 (en) * 1977-10-13 1979-05-11 Fischer Artur DRILLING KIT
US4955766A (en) * 1989-11-06 1990-09-11 Sommerfeld Craig A Holding fixture for drilling pocket joints
US7798750B2 (en) 2007-08-20 2010-09-21 Allen Ip Inc. Drill guide with removeable clamp retainer
US20190047058A1 (en) * 2017-08-14 2019-02-14 Power Box Ag Drill bit holding assembly for jig and jig apparatus including the same
US10766079B2 (en) * 2017-08-14 2020-09-08 Power Box Ag Drill bit holding assembly for jig and jig apparatus including the same

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