Procedure for the preparation of ftalazine- (2,3-b) ftalazine -5 (14h), 12 (7h) -dionas. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent 413,114 on improvements in hydraulic pumps of fast closing, characterized in that in the device, behind the check valve, is provided in the pipeline to the valves of emptying another check valve, which is attached with the reservoir for reserving oil through a channel and because the check valve is closed when the device is operated and is opened when the steering wheels are released and the propulsion shafts are loaded by the shaft with the eccentric disc a pressure pin resting on the device longitudinally displaceable. (Machine-translation by Google Translate, not legally binding)