Fejér László – Lászlóffy Woldemár: A hidrometria magyarországi fejlődése (1700-1945) (Vízügyi Történeti Füzetek 13. Budapest, 1986)

Idegen nyelvű összefoglalók

55. Discharges calculated on the basis of flow velocity measurement and of the rise of water level during the fill of the ship-lock at Óbecse. Zsigmond FEKETE, leader of the Hydrographie Section. József WEISSMAHR, prof essor of the Technical University. 56. Reduction in the velocity of revolution of the current meter, due to skewness in the position of the vane axis, at flow velocities of 1.45 and 0,46 m/s, respectively. As a consequence of oblique flow the rotation of the vane is slowed down. A vane with great pitch — that is a flatter one — would stop at an angle of 40° degree. 57. Current meter of József WEISSMAHR, operating satisfactorily even if suspended by a rope. The body of the instrument — also serving as a load — can reduce the amplitude of the swing of the rope (the deviation from vertical) while the horizontal position of the vane shaft is assured by a cardan joint suspension and a horizontal rudder. 58. Instrument assembly of József WEISSMAHR for flow velocity measurements at the Nagymaros measuring station of the Technical University. Sándor ROHRINGER, professor of the Technical University. 59. Current meters of domestic design between 1890 and 1930: 1. Rohringer's 2. Viczián's 3. Hajós's instrument. Imre HUSZÁR chief engineer 60. Sketches on the instrument of Imre HUSZÁR. 61. Instrument for measuring flow velocity operated by photocell, designed by Huszár. 62. Tarnótzky-type measuring plank with winch, for measurements from a bridge. Gábor BERÉNYI 63. Berényi-type instrument for flow velocity measurement.