GB419246A - Improvements in or relating to drilling and like rotary spindle machines - Google Patents

Improvements in or relating to drilling and like rotary spindle machines

Info

Publication number
GB419246A
GB419246A GB601634A GB601634A GB419246A GB 419246 A GB419246 A GB 419246A GB 601634 A GB601634 A GB 601634A GB 601634 A GB601634 A GB 601634A GB 419246 A GB419246 A GB 419246A
Authority
GB
United Kingdom
Prior art keywords
drilling
relating
crofton
rotary spindle
coil spring
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
GB601634A
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.)
CHARLES CROFTON AND Co EN
Original Assignee
CHARLES CROFTON AND Co EN
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 CHARLES CROFTON AND Co EN filed Critical CHARLES CROFTON AND Co EN
Priority to GB601634A priority Critical patent/GB419246A/en
Publication of GB419246A publication Critical patent/GB419246A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/035—Surface drives for rotary drilling with slipping or elastic transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

419,246. Portable drills. CROFTON & CO. (ENGINEERS), Ltd., C., and CROFTON, H. B., 11, Marden Road South, Whitley Bay, Northumberland. Feb. 23, 1934, No. 6016. [Class 83 (iii).] A drilling machine has driving means which allow of considerable relative rotation between the tool socket and the driving mechanism, for example, a coil spring. The machine is similar to that described in Specification 408,977 except that the spindle is arranged for rotary motion only ; the arrangement of the motor 3, toothed reduction gear 5, 4 and coil spring 11 is the same, but the spindle bearings 13, 15 are modified.
GB601634A 1934-02-23 1934-02-23 Improvements in or relating to drilling and like rotary spindle machines Expired GB419246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB601634A GB419246A (en) 1934-02-23 1934-02-23 Improvements in or relating to drilling and like rotary spindle machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB601634A GB419246A (en) 1934-02-23 1934-02-23 Improvements in or relating to drilling and like rotary spindle machines

Publications (1)

Publication Number Publication Date
GB419246A true GB419246A (en) 1934-11-08

Family

ID=9806899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB601634A Expired GB419246A (en) 1934-02-23 1934-02-23 Improvements in or relating to drilling and like rotary spindle machines

Country Status (1)

Country Link
GB (1) GB419246A (en)

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