GB274418A - Improvement in pneumatic coal picks - Google Patents

Improvement in pneumatic coal picks

Info

Publication number
GB274418A
GB274418A GB5739/27A GB573927A GB274418A GB 274418 A GB274418 A GB 274418A GB 5739/27 A GB5739/27 A GB 5739/27A GB 573927 A GB573927 A GB 573927A GB 274418 A GB274418 A GB 274418A
Authority
GB
United Kingdom
Prior art keywords
space
ports
improvement
piston
handle
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
GB5739/27A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB274418A publication Critical patent/GB274418A/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
    • B25D9/14—Control devices for the reciprocating piston

Landscapes

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

Abstract

274,418. Ingersoll-Rand Co., (Assignees of Slater, F. M.). July 15, 1926, [Convention date]. Percussive hand tools. - In a pneumatically-operated coal pick the hollow hammer-piston V slides on an inlet tube L held by a flange P between the handle and the barrel. The pressure fluid passes to the space behind the piston by way of a flat Z on the tube and to the space in front by ports X and grooves c, d in the cylinder wall. The exhaust ports e, f lead to a space h inside a sleeve clamped at its end under the handle and provided with escape ports j.
GB5739/27A 1926-07-15 1927-03-01 Improvement in pneumatic coal picks Expired GB274418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US274418XA 1926-07-15 1926-07-15

Publications (1)

Publication Number Publication Date
GB274418A true GB274418A (en) 1927-08-04

Family

ID=21837754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5739/27A Expired GB274418A (en) 1926-07-15 1927-03-01 Improvement in pneumatic coal picks

Country Status (1)

Country Link
GB (1) GB274418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433395A1 (en) * 1978-06-17 1980-03-14 Inst Gornogo Dela Sibirskogo O PERCUSSION PNEUMATIC DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433395A1 (en) * 1978-06-17 1980-03-14 Inst Gornogo Dela Sibirskogo O PERCUSSION PNEUMATIC DEVICE

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