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.)
Hierzu I Blatt Zeichnungen.For this purpose I sheet drawings.
BERLIN. GEDRÜCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Patent-Anspruch:Patent claim:Die Anordnung von nur einem Cylinder nebst Kolben, welcher, durch hydraulische Kraft
bewegt, den die Caps tragenden Schachtrahmen vermittelst der Hebel de und der Zugstangen
cg hebt und dessen selbstständiges Sinken zuläfst.The arrangement of only one cylinder and piston which, by hydraulic force, lifts the manhole frame carrying the caps by means of the lever de and the tie rods cg and allows it to sink automatically.
DENDAT17533D
Device to prevent the harmful effects of the suspension rope in shaft hoisting systems
ActiveDE17533C
(en)