GB423687A - Improvements in or relating to feed devices for portable drilling machines and the like - Google Patents

Improvements in or relating to feed devices for portable drilling machines and the like

Info

Publication number
GB423687A
GB423687A GB3202733A GB3202733A GB423687A GB 423687 A GB423687 A GB 423687A GB 3202733 A GB3202733 A GB 3202733A GB 3202733 A GB3202733 A GB 3202733A GB 423687 A GB423687 A GB 423687A
Authority
GB
United Kingdom
Prior art keywords
nut
lever
pawl
feed
ratchet
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
GB3202733A
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 GB3202733A priority Critical patent/GB423687A/en
Publication of GB423687A publication Critical patent/GB423687A/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
    • B23B45/12—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by man-power by using a ratchet brace

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)

Abstract

423,687. Drilling. CROFTON & CO. (ENGINEERS), Ltd., C., and CROFTON, H. B., 11, Marden Road South, Whitley Bay, Northumberland. Nov. 16, 1933, No. 32027. Addition to 409,234. [Class 83 (iii)] The feed nut 7 of the feed device according to the parent Specification has a ratchet wheel 9 keyed thereto at 10, and has rotatable thereon a hand lever 8 carrying a spring pawl 11. A spring 16 is interposed between the lug 6a on the drilling-machine 6 and the end of the nut to prevent rotation of the nut in the reverse direction to the feed when the pawl is slipping over the teeth of the ratchet on the idle stroke of the lever 8. A knurled head 7a on the nut provides for hand rotation thereof when the pawl has been disengaged by a trigger 14, for feeding the drill up to the work. One face of the lever 8 abuts on the head 7a and the ratchet wheel abuts on a shoulder 7b on the nut. A casing 12 attached to the lever 8 encloses the ratchet mechanism.
GB3202733A 1933-11-16 1933-11-16 Improvements in or relating to feed devices for portable drilling machines and the like Expired GB423687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3202733A GB423687A (en) 1933-11-16 1933-11-16 Improvements in or relating to feed devices for portable drilling machines and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3202733A GB423687A (en) 1933-11-16 1933-11-16 Improvements in or relating to feed devices for portable drilling machines and the like

Publications (1)

Publication Number Publication Date
GB423687A true GB423687A (en) 1935-02-06

Family

ID=10331957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3202733A Expired GB423687A (en) 1933-11-16 1933-11-16 Improvements in or relating to feed devices for portable drilling machines and the like

Country Status (1)

Country Link
GB (1) GB423687A (en)

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