GB165900A - Improvements in hand-braces - Google Patents

Improvements in hand-braces

Info

Publication number
GB165900A
GB165900A GB632620A GB632620A GB165900A GB 165900 A GB165900 A GB 165900A GB 632620 A GB632620 A GB 632620A GB 632620 A GB632620 A GB 632620A GB 165900 A GB165900 A GB 165900A
Authority
GB
United Kingdom
Prior art keywords
driven
bit
hand
ratchet
wheel
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
GB632620A
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 GB632620A priority Critical patent/GB165900A/en
Publication of GB165900A publication Critical patent/GB165900A/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

165,900. Crocher, S. H. June 29, 1920. Hand and breast drills. - A handbrace in which the boring bit is driven by epicyclic gearing from the crank handle, has the gearing enclosed in a case provided with pawl-operating gear, to enable the bit to be driven in either direction by ratchet action. The bit-holder 1, Fig. 2, is driven through the wheel train 6, 7 from the wheel 9 which can be rotated by driving pins 12 in the clutch-handle 13. For different conditions, such as a direct drive, reverse and ratchet driving, the gear case 17 is provided with pawls 22, Fig. 3, which are carried by a spring 23 and actuated by eccentric projections on levers 19, Fig. 4.
GB632620A 1920-06-29 1920-06-29 Improvements in hand-braces Expired GB165900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB632620A GB165900A (en) 1920-06-29 1920-06-29 Improvements in hand-braces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB632620A GB165900A (en) 1920-06-29 1920-06-29 Improvements in hand-braces

Publications (1)

Publication Number Publication Date
GB165900A true GB165900A (en) 1921-07-14

Family

ID=9812444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB632620A Expired GB165900A (en) 1920-06-29 1920-06-29 Improvements in hand-braces

Country Status (1)

Country Link
GB (1) GB165900A (en)

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