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.)
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LUDWIG SCHIRRA
Original Assignee
LUDWIG SCHIRRA
Publication date
Priority to DESCH63905DpriorityCriticalpatent/DE364166C/en
Application grantedgrantedCritical
Publication of DE364166CpublicationCriticalpatent/DE364166C/en
E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
E21B19/081—Screw-and-nut feed mechanisms
Description
Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
Claims (1)
Patent-Anspruch:Patent claim:Gestell zum Schrämen und Hereingewinnen mittels Abbauhammers, dadurch
gekennzeichnet, daß ein auf Füßen stehender Rahmen (1) mit Vorschubspindel (2)
einen stuhlförmigen Schlitten (4) führt, in dessen Mittelbohrung die auf den
Schlitten gesetzte Einlegegabel (5) für den Abbauhammer (6) mittels Zapfens frei drehbar ist.Frame for cutting and winning in with a pick hammer, thereby
characterized in that a frame (1) standing on feet with a feed spindle (2)
a chair-shaped carriage (4) leads, in the central bore on the
Slide set insertion fork (5) for the pick hammer (6) is freely rotatable by means of a pin.
DESCH63905D
Frame for scraping and winning with a pick hammer
ExpiredDE364166C
(en)