US1729446A - Ship hull - Google Patents

Description

Sept. 24, 1929. E. R. F. MAIER 1,729,446

SHIP HULL Filed Sept. 28, 192a mien/or Patented Sept. 24, 1929 ERICH R. F. MAIER, OF BREMEIN', GERMANY SHIP HULL Application filed September 28, 1928, Serial No. 308,953, and in Germany September 28, 1927.

The invention relates to the fore-bodies of ships, boats and t 1e like, hereinafter referred to generically as ships.

An object of the invention is to provide a 5 short and quick path for the water displaced from bow to stern so as to reduce the resistance opposed to the passage' oftheship by waves.

In order to attain such advantages the present invention consists in a ships fore-body defined by six surfaces, namely, a horizontal bottom surface which is preferably divided into two surfaces slightly inclined to one another to form a keel, an adjoining surface on each side of the bottom surfaces and inclined to the horizontal at an angle of more than 90 and substantially vertical side surfaces adjoining the inelined surfaces.

With these and other objects in view as will hereinafter appear, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as

hereinaftermore fully set forth, pointed out 2 in my claims, andillustrated in the accom'-' panying drawings, in which ,Figure 1 is a perspective elevation of one form of fore-body;

Figure 2 is a corresponding plan view;

Figure-3 is a front view; and

Figure 4 shows a modification.

In the drawings like reference characters refer to like parts.

The fore-body of the ship is defined by substantially vertical surfaces, A and F, inclined side surfaces, B and E, and two bottom surfaces G and D, the angle between the inclined surfaces and the horizontal being greater than 90, and'preferably between 115 and 1559.

The inclined surfaces, B and E, increase in breadth .as shown fromiamidships below the water-line in a forward direction tq above the Water-line and gradually approach until" at the point, K, s where the bottom surfaces end in a point, the inclined surfaces unite, their line of junction rising to define the stem of the vesseL- g In practice, it is not necessary that the surfaces, A and B, (and E and F) in the forward part of the fore-body should be sharply defined in relation to one another as shown in Figure 1 in order to explain how the form of the ship is built up. For example as shown in'Figure 4: these surfaces may run into one another by rounding the meeting edges of the various surfaces.- I K 1 The distance, w, of the point, K, from the forward perpendicular, VP, is the chief factor in determining the formation of the bow. and depends on the fullness of the ship. The remainder of the ship can be given any suitable form.

j The bottom surface may be slightly con-. vexed outwards or take -any other practical form and the remainder of the ship may take any desired form.

Some changes may be made in the construction and arrangement of the invention above set forth, without departing from the real purpose and spirit thereof, and it is the intention to cover by the following claims, an 7 modified forms of structure or use of equivalents, which may be reasonably included within their scope.

I claim:

1 A ships fore-body defined by six surfaces running'into one another, namely, a

I substantially horizontal bottom surface divided into two surfaces slightly inclinedto one another to 0 a keel and having an apex at its forward end, two adjoining S111? faces one on each side of the bottom surfaces inclined to the substantially horizontal bottom surfaces at an angle greater than and increasingin breadth from amidships below the water-line in a forward direction to above the water-line, and two substantially vertical side surfaces adjoining respectively the inclined surfaces, the inclined surfaces meeting at the apex of the bottom surfaces and their line of intersection forming the stem of the ship from that point to above the water-line.

2. A ships fore-body defined by six surfaces running into one another, namely, a substantially horizontal bottom surface divided into two surfaces slightly inclined to one another to form a keel and having an apex at its forward end, two adjoining surfaces one on eachside of the bottom surfaces inclined to the-substantially horizontal bottom surfaces at an: angle greater than 90 and increasing inbreadth from amidships below the water-line in a forward direct-ion to above the water-line, and two substantially vertical side surfaces adjoining respec tively the inclined surfaces, said vertical *apex at its forward end, two adjoining sur-' 25 faces one on each side of the bottoin surfaces side surfaces progressively decreasing in breadth in a forward direction correspond; ing to the increase in breadth of the ii1 clined surfaces until they terminate between two transverse vertical planes 'drawn respectively through said apex and the nose of the ship, the inclined surfaces meeting at the apex of the bottom surfaces and their line of intersection forming the stern of the ship from thatpoint to above the water-line."

3. A ships fore-body defined by six surfaces running into one another, namely, a substantially horizontal 'bottom surface divided into two surfaces slightly inclined to one another to forma keel and having an inclined to the substantially horizontal botytom surfaces at an anglegreater than 90 and increasing in breadth from amidships below the water-line in a forward direction to above the water-line, and two substantially vertical side surfaces adjoining respectively the inclined surfaces, the inclined surfaces meeting at the apex of" the bottom surfaces andtheir line of intersection forming the stem of the ship from that point to above the water-line and the meeting edges of said various surfaces being rounded.

. In testimony whereof I have afixed my signature.

ERIGH: R. F. MAIEB.

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