GB673753A - Improvements in or relating to drill gripping members - Google Patents

Improvements in or relating to drill gripping members

Info

Publication number
GB673753A
GB673753A GB11296/49A GB1129649A GB673753A GB 673753 A GB673753 A GB 673753A GB 11296/49 A GB11296/49 A GB 11296/49A GB 1129649 A GB1129649 A GB 1129649A GB 673753 A GB673753 A GB 673753A
Authority
GB
United Kingdom
Prior art keywords
drill
chuck
threads
tapered
depth
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
GB11296/49A
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.)
ORMEROD HAYWORTH HEAP
Original Assignee
ORMEROD HAYWORTH HEAP
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 ORMEROD HAYWORTH HEAP filed Critical ORMEROD HAYWORTH HEAP
Priority to GB11296/49A priority Critical patent/GB673753A/en
Publication of GB673753A publication Critical patent/GB673753A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/62—Drilling tools having means to reinforce the shank, e.g. drills having small shanks being gripped by devices having a larger shank

Landscapes

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

Abstract

673,753. Drills; chucks. HEAP, O.H. July 28, 1950 [April 28, 1949], No. 11296/49. Class 83 (iii). A drill chuck has means for gripping the drill, means for gauging the depth of the hole to be drilled, and means for cutting-off swarf as it spirals back along the flutes of the drill. The chuck is of hollow form to house the drill 1 with its end projecting an amount equal to the depth of hole to be drilled. Jaws are formed on the chuck by means of a slit 6, which is closed by taper-threads 7 and a nut 8. The jaws are chamfered at 12a to form depth stops 12 which are sharpened to provide edges 12b for cutting the swarf. In various modifications, the split Morse-tapered shank of the chuck is replaced by a cylindrical splitshank, and the threads 7 either by non-tapered reversed buttress threads or by a frusto-conical surface ending in non- tapered threads which co-operate with a nut having a frusto-conical inner surface.
GB11296/49A 1949-04-28 1949-04-28 Improvements in or relating to drill gripping members Expired GB673753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11296/49A GB673753A (en) 1949-04-28 1949-04-28 Improvements in or relating to drill gripping members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11296/49A GB673753A (en) 1949-04-28 1949-04-28 Improvements in or relating to drill gripping members

Publications (1)

Publication Number Publication Date
GB673753A true GB673753A (en) 1952-06-11

Family

ID=9983616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11296/49A Expired GB673753A (en) 1949-04-28 1949-04-28 Improvements in or relating to drill gripping members

Country Status (1)

Country Link
GB (1) GB673753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105537A1 (en) * 1981-02-16 1982-08-26 Jungwirth und Döllerer GmbH, 8019 Aßling Collet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105537A1 (en) * 1981-02-16 1982-08-26 Jungwirth und Döllerer GmbH, 8019 Aßling Collet

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