GB109102A - An Improved Centering Bit or Countersinking Drill. - Google Patents

An Improved Centering Bit or Countersinking Drill.

Info

Publication number
GB109102A
GB109102A GB1242516A GB1242516A GB109102A GB 109102 A GB109102 A GB 109102A GB 1242516 A GB1242516 A GB 1242516A GB 1242516 A GB1242516 A GB 1242516A GB 109102 A GB109102 A GB 109102A
Authority
GB
United Kingdom
Prior art keywords
drill
improved centering
centering bit
countersinking drill
countersinking
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
GB1242516A
Inventor
Tom Lancaster
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 GB1242516A priority Critical patent/GB109102A/en
Publication of GB109102A publication Critical patent/GB109102A/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
    • B23B51/0063—Centerdrills

Landscapes

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

Abstract

109,102. Lancaster, T. Sept. 1, 1916. Drills for use in centring work have the clearance drill 2 formed separately from the, countersink 1 and relatively adjustable by a screw 3 and secured by a screw 4. In a modification, the drill 2 is screwed to fit the tapped hole in the outer drill.
GB1242516A 1916-09-01 1916-09-01 An Improved Centering Bit or Countersinking Drill. Expired GB109102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1242516A GB109102A (en) 1916-09-01 1916-09-01 An Improved Centering Bit or Countersinking Drill.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1242516A GB109102A (en) 1916-09-01 1916-09-01 An Improved Centering Bit or Countersinking Drill.

Publications (1)

Publication Number Publication Date
GB109102A true GB109102A (en) 1917-09-01

Family

ID=32248707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1242516A Expired GB109102A (en) 1916-09-01 1916-09-01 An Improved Centering Bit or Countersinking Drill.

Country Status (1)

Country Link
GB (1) GB109102A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522330A (en) * 1947-04-16 1950-09-12 Wright Thomas Eugene Countersinking tool
US2613555A (en) * 1949-12-24 1952-10-14 Schultz Mfg Company Drilling and centering attachment for turret lathes
US2826104A (en) * 1956-03-14 1958-03-11 Edmund J Morin Cutting tool assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522330A (en) * 1947-04-16 1950-09-12 Wright Thomas Eugene Countersinking tool
US2613555A (en) * 1949-12-24 1952-10-14 Schultz Mfg Company Drilling and centering attachment for turret lathes
US2826104A (en) * 1956-03-14 1958-03-11 Edmund J Morin Cutting tool assembly

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