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Application filed by Svetomir A AtanasovfiledCriticalSvetomir A Atanasov
Priority to BG9511691ApriorityCriticalpatent/BG50618A3/en
Publication of BG50618A3publicationCriticalpatent/BG50618A3/en
Length-Measuring Instruments Using Mechanical Means
(AREA)
A Measuring Device Byusing Mechanical Method
(AREA)
Abstract
This system is used in electrified railway transportation. It has a simple construction and simplified use while retaining the accuracy and operability in calculations. It consists of constant measurement points (1). On the rails, horizontally against the points (1), are placed markers (2). The constant measurement points (1) are laid on the contact network posts (3) and on the tunnels' walls. During measurements, to the rail is fixed an adjusting bracket (4) with a groove (5) on the top plane, perpendicular to the rail thread, and further from the post, a terminal is fixed (6), connected to the measurement point by a measurement thread (7). On the front of the bracket, against the marker, there is an elongated aperture (8).
BG9511691A1991-09-171991-09-17Bench mark system for measuring the longitudinal and crosswise displacement of non- joined railway
BG50618A3
(en)
PROCEDURE FOR THE DETERMINATION IN TT SYSTEMS OF EARTH RESISTORS OF THE POWER SUPPLY SYSTEM AND OF THE USER SYSTEM, BY MEASURES OF RESISTANCE OF THE FAULT CIRCUIT