GB178295A - Improvements in drilling machines - Google Patents

Improvements in drilling machines

Info

Publication number
GB178295A
GB178295A GB853121A GB853121A GB178295A GB 178295 A GB178295 A GB 178295A GB 853121 A GB853121 A GB 853121A GB 853121 A GB853121 A GB 853121A GB 178295 A GB178295 A GB 178295A
Authority
GB
United Kingdom
Prior art keywords
wheel
driving
ball bearings
bevel
driven
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
GB853121A
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 GB853121A priority Critical patent/GB178295A/en
Publication of GB178295A publication Critical patent/GB178295A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/06—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by man-power

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

178,295. Kenyon, E. A. March 18, 1921. Hand drills.-In drilling-machines in which the drill spindle is driven by bevel-gearing, a hubless driving-wheel is mounted in two ball bearings arranged on its periphery, a central axis for the driving-wheel being thereby dispensed with. In application to the hand drilling machine shown in Fig. 1, the drill spindle 25, Fig. 3, is mounted in ball bearings carried in lugs 6, 7 projecting from an annular part of the frame, and is driven through the bevel-gear 10 which runs in ball bearings at 12, 15, axial movement of the wheel being prevented by the thrust collar 9 and the cover-plate 16, the latter being screwed to the driving-wheel.
GB853121A 1921-03-18 1921-03-18 Improvements in drilling machines Expired GB178295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB853121A GB178295A (en) 1921-03-18 1921-03-18 Improvements in drilling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB853121A GB178295A (en) 1921-03-18 1921-03-18 Improvements in drilling machines

Publications (1)

Publication Number Publication Date
GB178295A true GB178295A (en) 1922-04-20

Family

ID=9854209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB853121A Expired GB178295A (en) 1921-03-18 1921-03-18 Improvements in drilling machines

Country Status (1)

Country Link
GB (1) GB178295A (en)

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