GB928813A - Pavement breaking drill - Google Patents

Pavement breaking drill

Info

Publication number
GB928813A
GB928813A GB19055/60A GB1905560A GB928813A GB 928813 A GB928813 A GB 928813A GB 19055/60 A GB19055/60 A GB 19055/60A GB 1905560 A GB1905560 A GB 1905560A GB 928813 A GB928813 A GB 928813A
Authority
GB
United Kingdom
Prior art keywords
striker
links
crank
barrel
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
GB19055/60A
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 GB928813A publication Critical patent/GB928813A/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
    • 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
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18168—Crank, lazy-tong, and slide

Abstract

928,813. Percussive tools. A. R. HENRY. May 30, 1960 [July 6, 1959], No. 19055/60. Class 124. A percussive tool comprises a housing, a tubular barrel, a striker slidable in the barrel, a drive member comprising a crank having a crank-pin rotatable at right-angles to the centre line of the barrel, and a pair of opposed toggles each comprising an upper and a lower link joined at their contiguous ends, the opposite ends of the lower links being pivoted to the striker, the opposite ends of the upper links being connected by means pivotally connected to the crank-pin and a compression spring arranged between the upper links. As shown, a housing 2 has a barrel 20 extending therefrom and having a striker 30 sliding therein. The striker is pivoted to the ends of the lower links 102 which are pivoted at 104 to the free ends of a pair of upper links 96, the other ends of which are pivotally connected to a pin 78 of a crank 70. A spring 112 is connected between the links 96. In operation the inertia of the striker moves the links 102 out of the neutral position shown and causes the spring 112 to be compressed, and on the downward movement of the striker the force of the spring is added to the blow.
GB19055/60A 1959-07-06 1960-05-30 Pavement breaking drill Expired GB928813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US825232A US3063508A (en) 1959-07-06 1959-07-06 Pavement breaking drill

Publications (1)

Publication Number Publication Date
GB928813A true GB928813A (en) 1963-06-19

Family

ID=25243451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19055/60A Expired GB928813A (en) 1959-07-06 1960-05-30 Pavement breaking drill

Country Status (2)

Country Link
US (1) US3063508A (en)
GB (1) GB928813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008095073A2 (en) * 2007-02-01 2008-08-07 J.H. Fletcher & Co. Fail-resistant hammer assembly for a valveless percussive drill

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356166A (en) * 1965-04-15 1967-12-05 Gardner Denver Co Percussive tool
DE2335731C2 (en) * 1972-07-14 1983-11-17 Kabushiki Kaisha Komatsu Seisakusho, Tokyo Hydraulically operated rock drill - allows quieter and more effective stable operation than pneumatic device
FR2622836A1 (en) * 1987-11-06 1989-05-12 Neyret Guy
AT401250B (en) * 1993-03-08 1996-07-25 Winter Udo Pneumatic hammer
DE19714555C2 (en) * 1997-04-09 2001-06-21 Wacker Werke Kg Tool, especially ramming device for soil compaction or hammer
DE102005000207A1 (en) * 2005-12-23 2007-06-28 Hilti Ag Hand-held power tool e.g. pneumatic chisel, has handle suspensions arranged in housing in such way that suspensions do not cause additional constructional length, and rings provided between pivot axes and suspensions, respectively
US8590633B2 (en) 2006-07-01 2013-11-26 Black & Decker Inc. Beat piece wear indicator for powered hammer
US7413026B2 (en) 2006-07-01 2008-08-19 Black & Decker Inc. Lubricant system for powered hammer
US7624815B2 (en) 2006-07-01 2009-12-01 Black & Decker Inc. Powered hammer with vibration dampener
EP1872913B1 (en) * 2006-07-01 2015-08-19 Black & Decker, Inc. A tool holder for a hammer apparatus
EP1872915A3 (en) 2006-07-01 2011-06-01 Black & Decker, Inc. A Lubricant Pump for a Hammer Drill
DE102007000452A1 (en) * 2007-08-20 2009-02-26 Hilti Aktiengesellschaft Hand tool with lifting drive
USD842062S1 (en) * 2017-08-24 2019-03-05 Scheppach Fabrikation Von Holzbearbeitungsmaschinen Gmbh Electric hammer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US619048A (en) * 1899-02-07 Cushion-coupling for trip-hammers
US513326A (en) * 1894-01-23 Power-hammer
US665249A (en) * 1900-03-14 1901-01-01 Louis Mayer Trip-hammer ram connection.
US655028A (en) * 1900-03-24 1900-07-31 John G Mcclun Rotary draw-block hammer.
US883024A (en) * 1907-05-06 1908-03-24 George A Humpert Mechanical movement.
US1089104A (en) * 1911-11-10 1914-03-03 Henry J Beck Stone-dressing machine.
US1401317A (en) * 1920-07-22 1921-12-27 Comstock Harry Pump-jack
US2519477A (en) * 1947-04-25 1950-08-22 Racine Tool & Machine Company Power hammer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008095073A2 (en) * 2007-02-01 2008-08-07 J.H. Fletcher & Co. Fail-resistant hammer assembly for a valveless percussive drill
WO2008095073A3 (en) * 2007-02-01 2008-10-09 J H Fletcher & Co Fail-resistant hammer assembly for a valveless percussive drill
US8991515B2 (en) 2007-02-01 2015-03-31 J.H. Fletcher & Co. Fail-resistant hammer assembly for a valveless percussive drill

Also Published As

Publication number Publication date
US3063508A (en) 1962-11-13

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