Tool driving or impacting – Impacting devices – Selective axial direction of impact
Patent
1982-08-05
1984-09-25
Kazenske, E. R.
Tool driving or impacting
Impacting devices
Selective axial direction of impact
173 1, 173134, B25D 900
Patent
active
044731230
ABSTRACT:
A diesel hammer (20) is adapted to produce uplift blows by connecting its casing (30) via a pulling connection (52) to a case (24) to be pulled, removing vent plugs (76) from the top of the casing, sealing all other openings (78), (82), (94), in the casing, applying compressed air from an external source (106) under the hammer ram (32) to drive it upwardly and thereafter allowing controlled flow of air out of the casing via a bleed line (118) and an adjustable orifice (238) to cushion the subsequent fall of the ram.
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"Model 520 Diesel Pile Hammer"-1 p. advertisement of International Construction Equipment Inc.
Ranft Eberhard V.
Vincent Robert L.
Fridie Willmon
Kazenske E. R.
Raymond International Builders, Inc.
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