GB445063A - Improvements relating to pneumatic hammers - Google Patents

Improvements relating to pneumatic hammers

Info

Publication number
GB445063A
GB445063A GB9077/35A GB907735A GB445063A GB 445063 A GB445063 A GB 445063A GB 9077/35 A GB9077/35 A GB 9077/35A GB 907735 A GB907735 A GB 907735A GB 445063 A GB445063 A GB 445063A
Authority
GB
United Kingdom
Prior art keywords
cylinder
improvements relating
pneumatic hammers
piston
screwec
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
GB9077/35A
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
Publication of GB445063A publication Critical patent/GB445063A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

445,063. Percussive tools. ELOY, F., 1, Rue de Pitteurs, Liege, Belgium. March 23, 1935, No. 9077. Convention date, Oct. 13, 1934. [Class 124] The pneumatic hammer has a differential piston, the portion 5 of smaller diameter passing through a restriction 2 of the cylinder into a space 7 constantly open to the atmosphere through the passages 9, 10, 11 and 12 On the return stroke, the front end of the reduced portion 5 enters the cylinder 8 and is thus exposed, together with the annular surface of the piston, to the air pressure therein. The tool 3 is retained by the screwec collar 15.
GB9077/35A 1934-10-13 1935-03-23 Improvements relating to pneumatic hammers Expired GB445063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE445063X 1934-10-13

Publications (1)

Publication Number Publication Date
GB445063A true GB445063A (en) 1936-04-02

Family

ID=3869726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9077/35A Expired GB445063A (en) 1934-10-13 1935-03-23 Improvements relating to pneumatic hammers

Country Status (2)

Country Link
FR (1) FR445063A (en)
GB (1) GB445063A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016205B (en) * 1953-12-16 1957-09-26 Rudolf Hausherr Und Erben Komm When the tool is lifted from the work joint, compressed air pick-up hammer automatically shut down
CN111270982A (en) * 2020-03-12 2020-06-12 姚佳锋 Air-leg rock drill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016205B (en) * 1953-12-16 1957-09-26 Rudolf Hausherr Und Erben Komm When the tool is lifted from the work joint, compressed air pick-up hammer automatically shut down
CN111270982A (en) * 2020-03-12 2020-06-12 姚佳锋 Air-leg rock drill
CN111270982B (en) * 2020-03-12 2021-05-14 江苏合海集团股份有限公司 Air-leg rock drill

Also Published As

Publication number Publication date
FR445063A (en) 1912-11-02

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