DE4815C - Superstructure system for Strausssenbalinen - Google Patents

Description

1878.

G. A. L. SCHULTZ & CO. in Berlin. Superstructure system for trams.

Patented in the German Empire by the io. September 1878. Longest duration: June 17, 1892.

The track system for rail traffic lines, which was introduced almost without exception, suffers from the error, that the whole railway is constructed as a continuous bridge, the pillars of which are the cross ties and the beams of which are the rails, while the track body itself along with the usual ones Gravel or ballast bedding must consistently represent a good building ground, over which the loads on long sleepers respectively. Rails with a much lower load-bearing capacity could be led away without sinking in, when the long sleepers or rails lay evenly on the ground everywhere.

By taking into account the necessary maintenance of the parallelism of the rails the errors of the cross-sleeper system are not justified.

The Hilf'sche system with iron long sleepers has the possibility of preservation the parallelism of the rails and the usefulness of the long sleeper system in general it is only proven that the rails are continuously and evenly supported not reached on the long sleepers.

Most horse railways also have wooden long sleepers on wooden cross sleepers, on which the rails are attached with hook nails.

With this system, too, there is continuous, even support for the rails not in place, because the long sleeper provides reliable support if the width is insufficient and the load cannot be transferred directly to the bedding without move the same respectively. to push in; this transfers the load again the transverse sleepers and through these only to the under-bedding, so that here too the Defects of the cross-sleeper system emerge by the cross-sleepers to a certain extent the Bridge piers and the long sleepers represent the bridge girders.

The short duration of the wood in its use for railway sleepers has already often led to attempts to make the sleepers of other durable materials instead of wood but partly the old system of the bridge railway, partly offered too little area was provided to transfer the load to the subsoil, in part there is too little to secure against lateral displacement.

Because the artificial stone produced by the inventors becomes long sleepers for horse-drawn railway tracks has been taken into use, it has been shown that it has been used for this purpose from its weather resistance, which has already been tried and tested elsewhere, also sufficient compressive strength and that there is only a more suitable form of rails and sleepers, as well as a more convenient and better attachment of the same to each other would need to to meet the aforementioned requirements.

1. Long sleepers made of weather-resistant and pressure-resistant artificial sandstone:

a) The base area is so large that the load is transferred well to the subsoil (gravel bedding) will;

b) Height so great that the widening of the foot only under the cobblestones of 18 cm depth begins and the thresholds reach 8 cm below the pavement, whereby they are secured against lateral displacement;

c) Side walls perpendicular so that cubic paving stones connect well, without that they cause a displacement when rammed;

d) upper surface so wide that an 18 cm wide rail rests completely on it;

e) Grooves and perforations in the stone sleepers in such a way that the fittings are attached put in and let it tighten firmly with wedges.

2. Rails:

a) Width and profile in such a way that even ordinary wagons drive comfortably on it can without getting trapped and without slipping;

ΐ>) lying firmly everywhere and with bandages and tighten wedges firmly.

3. Rail material, strong and far below by means of a U-shaped rail, so that a Sinking of a rail end is prevented.

Claims (1)

..'- .. for connecting the rails: ä) With the sheets of cloth through iron wedges; b) "with" the 'sleepers' by iron bell-rings and wedges, which enable strong tightening and retightening, without giving way as with hook nails in wood, or partly giving way, partly rusting, as in the case of screw bolts, is to be feared, and c) on the joints and thresholds with wedges and clamp straps, which are in a fold intervening, in addition to their function of connecting rails and sleepers, both a Prevent lateral and longitudinal displacement of the individual sleeper pieces. PATEiSTT ₇ CLAIM: The described construction of a superstructure system for a streetcar. For this purpose 2 sheets of drawings.