. The Berlin-Zossen electric railway tests of 1903. A report of the test runs made on the Berlin-Zossen railroad in the months of September to November, 1903 . BERLIN-ZOSSEN ELECTRIC RAILWAY TESTS. 9 piece consisted of aluminum and was protected from too rapid wear by a brasstube i^ mm. ( in.) thick being pushed over and enclosing the aluminum. Theweight of the former sliding piece was reduced by this construction from 850 g.( lbs.) to 600 g. ( lbs.) while retaining the same strength. A light steel. Fig. 6 tube construction was used throughout in the moving parts of the trolley. Be
. The Berlin-Zossen electric railway tests of 1903. A report of the test runs made on the Berlin-Zossen railroad in the months of September to November, 1903 . BERLIN-ZOSSEN ELECTRIC RAILWAY TESTS. 9 piece consisted of aluminum and was protected from too rapid wear by a brasstube i^ mm. ( in.) thick being pushed over and enclosing the aluminum. Theweight of the former sliding piece was reduced by this construction from 850 g.( lbs.) to 600 g. ( lbs.) while retaining the same strength. A light steel. Fig. 6 tube construction was used throughout in the moving parts of the trolley. Be-sides this, the springs pressing the sliding bows to the trolley-lines were mademore elastic and adjusted in such a manner that the sliding pieces were pressedto the wire with a pressure of only 2^ to 3 kg. ( to lbs.). This triple springarrangement is shown in Figure 5. The sliding pieces are held by long and thin lO BERLIN-ZOSSEN ELECTRIC RAILWAY TESTS. blade springs, a, which are connected to the axis c by means of tubes. The axisis held by another combined spring device, c and d, and the whole front part turnsaround the axis e and is held in equilibrium by the spiral springs /. Originallyvanes were used with these sliding bows, thus utilizing the wind pressure at thehigh speeds to keep the trolleys on the wires. At the higher speeds these vanesproved to be too small, so that each sliding bow was equipped with another vane,h, on a longer arm in order to make the air pressure more effective. Th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectelectri, bookyear1905
