GB306148A - Improvements in power hammers - Google Patents

Improvements in power hammers

Info

Publication number
GB306148A
GB306148A GB5130/29A GB513029A GB306148A GB 306148 A GB306148 A GB 306148A GB 5130/29 A GB5130/29 A GB 5130/29A GB 513029 A GB513029 A GB 513029A GB 306148 A GB306148 A GB 306148A
Authority
GB
United Kingdom
Prior art keywords
sleeve
air
piston
tool
stroke
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
GB5130/29A
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.)
Chicago Pneumatic Tool Co LLC
Original Assignee
Chicago Pneumatic Tool Co LLC
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 Chicago Pneumatic Tool Co LLC filed Critical Chicago Pneumatic Tool Co LLC
Publication of GB306148A publication Critical patent/GB306148A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0073—Arrangements for damping of the reaction force
    • B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
    • B25D2217/0088—Arrangements for damping of the reaction force by use of counterweights being mechanically-driven

Landscapes

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

Abstract

306,148. Chicago Pneumatic Tool Co., (Assignees of Coates, C. B.). Feb. 16, 1928, [Convention date]. Percussive tools.-In a percussive drill in which the power from an attached electric motor is transmitted to the tool through a self-contained air compressor, the piston 4 is contained in the cylinder 3 on the outside of which moves the sleeve 5 driven by the. electric motor 18 through the gearing 16, 15, and the crank 12. The space 6 between the upper end of the sleeve 5 and the cylinder 3 is filled with air through port 5<b> when the sleeve 5 is at the top of its stroke. This air is compressed as the sleeve descends, and the piston is thus forced rapidly outward, till at the completion of the stroke the air is discharged through the ports 3<b> and 5<c>. The piston makes its return stroke due to the suction caused by the sleeve 5 on its return stroke. The motor casing 19 is attached to the tool by a plate 20 which facilitates the withdrawal of the crank 12 from its bearings 13, 14 when desired. The sleeve 5 is lubricated by a pad soaked in oil and situated in the groove 23. A counter balance weight 17 may be fitted to the crank shaft.
GB5130/29A 1928-02-16 1929-02-15 Improvements in power hammers Expired GB306148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US306148XA 1928-02-16 1928-02-16

Publications (1)

Publication Number Publication Date
GB306148A true GB306148A (en) 1930-01-16

Family

ID=21855070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5130/29A Expired GB306148A (en) 1928-02-16 1929-02-15 Improvements in power hammers

Country Status (1)

Country Link
GB (1) GB306148A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421700A (en) * 2004-12-23 2006-07-05 Black & Decker Inc Drive mechanism for power tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421700A (en) * 2004-12-23 2006-07-05 Black & Decker Inc Drive mechanism for power tool

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