GB469798A - Improvements in mechanical hammers and like impact tools - Google Patents

Improvements in mechanical hammers and like impact tools

Info

Publication number
GB469798A
GB469798A GB3018935A GB3018935A GB469798A GB 469798 A GB469798 A GB 469798A GB 3018935 A GB3018935 A GB 3018935A GB 3018935 A GB3018935 A GB 3018935A GB 469798 A GB469798 A GB 469798A
Authority
GB
United Kingdom
Prior art keywords
piston
tool
impact tools
mechanical hammers
air
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
GB3018935A
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 GB3018935A priority Critical patent/GB469798A/en
Publication of GB469798A publication Critical patent/GB469798A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

469,798. Percussive drills. LEWIS, F. M. Nov. 1, 1935, No. 30189. [Class 124] The working piston b is reciprocated in the cylinder a by a crank. When the tool e is pressed against the work, the free piston c is raised, closing the parts k and the piston c then follows with some lag, the reciprocations of the piston b. The inlet non-return valve m allows entry of air as required when the piston b is at the top of its stroke, whilst the relief valve m<1> exhaust air from between the pistons if the pressure rises too high. The tool e is retained by the stop h.
GB3018935A 1935-11-01 1935-11-01 Improvements in mechanical hammers and like impact tools Expired GB469798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3018935A GB469798A (en) 1935-11-01 1935-11-01 Improvements in mechanical hammers and like impact tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3018935A GB469798A (en) 1935-11-01 1935-11-01 Improvements in mechanical hammers and like impact tools

Publications (1)

Publication Number Publication Date
GB469798A true GB469798A (en) 1937-08-03

Family

ID=10303685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3018935A Expired GB469798A (en) 1935-11-01 1935-11-01 Improvements in mechanical hammers and like impact tools

Country Status (1)

Country Link
GB (1) GB469798A (en)

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