GB312595A - Improvements in or in connection with pneumatically operated percussive tools - Google Patents

Improvements in or in connection with pneumatically operated percussive tools

Info

Publication number
GB312595A
GB312595A GB621428A GB621428A GB312595A GB 312595 A GB312595 A GB 312595A GB 621428 A GB621428 A GB 621428A GB 621428 A GB621428 A GB 621428A GB 312595 A GB312595 A GB 312595A
Authority
GB
United Kingdom
Prior art keywords
striker
ports
valve
air
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
GB621428A
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 GB621428A priority Critical patent/GB312595A/en
Publication of GB312595A publication Critical patent/GB312595A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B25D9/06—Means for driving the impulse member
    • B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

312,595. Curti, E. Feb. 28, 1928. Percussive tools.-The striker 10 is actuated by compressed air supplied from a compressor A in uni-directional impulses under the control of a rotary reciprocating valve 5 which reciprocates in phase with the compressor piston 1, aided by a spring 6, and is caused to rotate by a screw thread 20 on the spindle 17 of a ratchet wheel 18. The valve 5 is hollow and divided by a partition 11. In its left-hand position air is admitted above the striker 10 through one of the ports 7 and in its right-hand position air is admitted below the striker through a port 13, whilst the space above the striker is opened to exhaust ports 16 by way of ports 12, 15. Relief ports 21 for excess air are provided, as well as a vent in the air pipe C if desired. In a modified device (not shown) the upstroke of the striker is .effected by a spring, and the valve 5 is replaced by a slide valve.
GB621428A 1928-02-28 1928-02-28 Improvements in or in connection with pneumatically operated percussive tools Expired GB312595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB621428A GB312595A (en) 1928-02-28 1928-02-28 Improvements in or in connection with pneumatically operated percussive tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB621428A GB312595A (en) 1928-02-28 1928-02-28 Improvements in or in connection with pneumatically operated percussive tools

Publications (1)

Publication Number Publication Date
GB312595A true GB312595A (en) 1929-05-28

Family

ID=9810488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB621428A Expired GB312595A (en) 1928-02-28 1928-02-28 Improvements in or in connection with pneumatically operated percussive tools

Country Status (1)

Country Link
GB (1) GB312595A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607024A1 (en) * 2011-12-19 2013-06-26 Robert Bosch GmbH Pneumatic tool device
EP2607025A1 (en) * 2011-12-19 2013-06-26 Robert Bosch Gmbh Pneumatic tool device
EP2902154A1 (en) * 2014-02-04 2015-08-05 Global Boiler Works OY Impulse tool
EP2308598A4 (en) * 2008-08-06 2017-11-22 Tokuyama Corporation Crusher for crushing a silicon ingot, and silicon crushing apparatus having a plurality of crushers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2308598A4 (en) * 2008-08-06 2017-11-22 Tokuyama Corporation Crusher for crushing a silicon ingot, and silicon crushing apparatus having a plurality of crushers
EP2607024A1 (en) * 2011-12-19 2013-06-26 Robert Bosch GmbH Pneumatic tool device
EP2607025A1 (en) * 2011-12-19 2013-06-26 Robert Bosch Gmbh Pneumatic tool device
EP2902154A1 (en) * 2014-02-04 2015-08-05 Global Boiler Works OY Impulse tool

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