DE16921C - Methods of making hollow columns, shafts, girders, pillars and similar structural parts more resistant - Google Patents

Description

IMPERIAL

ρατενύμτ;

GREAT

RAIL ELEMENTS.

HENRY JAMES HARRISON in LIVERPOOL.

Procedures, hollow pillars, shafts, girders, pillars, and similar elements of construction

to make more resilient.

Patented in the German Empire on August 2, 1881.

The procedure essentially consists in placing a column, shaft, mast, beam, etc., when these hollow bodies are to give a core or a filling that is the main thing after or entirely made of wood.

This core not only fills the inside of the relevant column, girder, etc., but protrudes upwards and downwards over their ends, so that, for example, from one The core is divided into several parts from the lower column the base plate downwards and into the next column part or other Part of the construction extends upwards.

One can use this core or the filling in different ways in the relevant bring in hollow structural parts. The core can have a slightly smaller thickness than that the hollow body to be filled has a clear width so that it lies loosely in it; the remaining free Space can then be filled with resin (asphalt) or in some other way. Is this Drilled inside of the hollow body, the wooden core can be turned off and exactly to fit be driven. One must, however, prevent moisture and wetness from doing so get to the wood, because otherwise it would swell and burst the hollow body. Man this can be avoided by surrounding the wooden core with waterproof material or that one's pores are filled with masses which do not suck in moisture. Man can, however, saturate the wood with moisture beforehand, then turn it off and the Collect core nafs. The latter method is recommended in the case where the concerned Hollow body is to be attached in or under water, e.g. B. in arches, bridge piers and Jochen.

Wrought iron and composite cores can also be used instead of wooden cores Wood or from materials that have the properties of wood will.

In the case of hollow shafts, the same procedure can be followed as in the application above is described on pillars and beams. Since, however, the supporting shafts mainly on If bending and rotation are required, it is all the more necessary here, the outer shell and to firmly unite the core into a whole. In this case the friction would be respectively the adhesion of the earth's resin, etc., is insufficient; it is more advisable here, Bolts or wedges at certain intervals and in different directions across to pull through the shaft and core.

Claims (4)

Patent claims: ' 1. The process of reinforcing hollow structural parts Made of metal, such as masts, rafters, bridge piers, columns, stands, bridge girders, shafts, etc., consisting of that this hollow body with a core or a filling made of tough substances such. B. hard wood, provides. 2. The method of securing such wooden cores in the cavities of the construction parts in the end, consisting in pouring molten earth pitch, asphalt or some other binding agent around them, which is introduced in the liquid state and turns into a hard and solid mass when it cools.
The process of reinforcing hollow construction parts or to connect, consisting in that they are provided with a core of tough wood or of a material possessing similar properties, in such a way that this core extends over the ends of the part to be connected into the abutment, the base plate or the base plate. extends into it the part of the construction connected with it, whereby the whole gains more coherence and resistance.
4. The filling of hollow support shafts made of iron or steel with a wooden core, which is extends through the entire interior, but especially through the dangerous cross-section of the shaft and not only in the latter adheres by mere friction or adhesion, but if necessary by bolts or Wedges, which penetrate the shaft and core transversely, are firmly connected to the shaft.