US1771224A - Metal section for sheet piling - Google Patents

Description

Jul 22, 1930.

W. C. KOHLER METAL SECTION FO R SHEET FILING v Filed April 28, 1926 Patented July 22, 1930 UNITED, STATES WILLEM. conlvnnnn KoHLnn, or AMSTERDAM, NETHERLANDS METAL SECTION FOR SHEET FILING Application filed. April 28,

My invention relates to a metal sheet pile for the construction of strong caisson or'box walls. One problem of my invention is to construct a particularly strong caisson, be

cause, in many instances, the moment of re sistance of ordinary sheet-piling walls is inadequate. Another point that has also been borne in mind is that the individual sheet piles must be of such shape that they are 10 easy to roll, and nevertheless form watertight joints with the adjacent piles of the wall. With this object I have designed a metal section of the plate type, which is provided with an inwardly directed claw on the v one edge, and an outwardly directed claw on the other, the inwardly directed claw on the one end coacting with the outwardly directed claw on the adjacent metal plate. These metal plates are provided on the inner side with claws or grooves for the insertion of one or more suitable sections,preferably I.-sec-. tions. Two of the plates according to my invention are connected I together by one or two I-sections to form a caisson or' box and the unit thus formed is rammed as a whole, whereupon the plate section or caisson to be next rammed is assembled in the same way, and is rammed in such a way'that the claws V thereon engage with the claws of the preceding unit. V 7

Two. embodiments of my invention are illustrated in the drawing, Fig. 1 representing an end view of an assembled box pile, with the connecting parts of the adjacent pile, whilst Fig. 2 is a similar elevation of abox pile, in which the connecting iron sections are asymmetrical. V r a, a are the new type of plate iron section according to my invention. They have a smooth side 6, and an inner sideprovided with claws 0, the latter being arranged toface one another in pairs. For plates of otherwise equal dimensions, the claws 0 of each. pair may be spaced differently, as shown in Figs.

l and 2 in order to ineet different requirements in respect of the moment of resistance. Moreover, each plate may be provided with one or more such pairs of'claws. In. both examples, two pairs of claws are shown on each plate a. 7 i

1926. serial 116.105 .285.

The plates at are connected together in pairs by 'insertedrolled sections of the usual type, particularly "I-sections. The spacing of the pairot claws 0 isselected'in accordance 'With theI sections toabe used for. connectingthe plates, and theI-s'ections will be heavier or lighter in accordance with the moment of resistance desired.

In the embodiment according to F l the two plates used for making the box pile are connected together" by means of two I-sections cZ, thenormal flange width of which corresponds to the spacing of the claws 0. In the'embodiment according to Fig. 2 the ends of the outer flanges of the two iron section 6 have been shortened by cropping, so that a comparatively heavy section can be used with a short spacing of the claws 0. Moreover, this enables the webs of the I-sections to be situated nearer the edges of the plates.

The plates a are eachprovided at one end with a bend f, and at the other with a corre sponding'inward angular bend g. Taken together, the members f and 9 form a pair of claws, by means of which the plates a of the 1 one box pile canbe secured to the corresponding plates of the adjacent box'pile in such a manner that the plates a of thesuccessive box 7 piles all lie in the same plane.

For constructing walls ofsheet piling, two plates a are connected'to forma unit by one or more I-sections, as shown'in the drawing. This unit is driven in the usualway. The next pile is-then assembled-in the same manner, and is driven in such a way that its claws f and g engage the claws g and 7 respectively of the previously driven unit. I

The claws for connecting the adjacent parts may be modified in any known manner. The essential feature of my invention is the iron plates at with the pairs of facing claws c torthe reception of the connecting sections cZor e.

Having described and illustrated my invention I declare that what Idesire to have protected by a patent is as follows 1. A. metal section of plate type for construction of hollow sheet piles, with pairs of claws located inwardly ofthe edges of the 7 plate, on the one side, adapted to receive I-sections for the purpose of connecting it to a facing plate section of similar shape, and means for connecting the assembled pile to an adjacent pile of corresponding design.

2. A metal section of plate type having a plurality of pairs of claws on the one side, for the reception of an I-section connecting said section with another facing plate section, an inwardly directed claw on the one edge, and a corresponding outwardly directed claw on the other edge.

3. A metal pile structure including opposed plate-like members arranged in groups, pairs of companion claws on the inner faces of the plate-like members of each group, and

a pair of I-sections associated with the platelike members of each group, the heads of the I-sections being received in said claws and forming with the plate-like members a boxl-ike structure whereby each pile section presents a rigid undeformable unit.

In testimony whereof I have afiixed my signature.

WILLEM COENRAAD KGI-ILER.

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