US1353235A - Ship construction - Google Patents

Description

L. J. HAGEN.

SHIP CONSTRUCTION- APPLlCATlON FILED APR. 8'. I919.

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L J HAGE N SHIP CONSTRUCTION.

APPL'ICATION FILED APR. 8, l9l9- LABS J. HAGEN, or ronriiann, 01mm. r

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Specification of Letters Patent. Patented Sept, 21,1920,

Application filed April 8, 1919. Serial N0. 288,537.

T 0 all whom z't may concern:

Be it known that I, LARS J. HAGEN, a CltlZGIl of the United States, residing at-Portland, in the county of Multnomah and State of Oregon, have invented a new and useful 1m.- provement in Ship Construction of which the following is a specification, reference beingqhad to the accompanying drawings.

1 y invention relates to a reinforced construction for wooden ships. 7

The object of my invention'is to provide a metal reinforcing means throughout a wooden ship whereby the buoyancy of wood and the strength of metal may be obtained in a composite ship. Theseobjects, as well as others, I attain by the construction, combination and arrangement of parts illustrated in the accompanying drawings which form a part hereof.

Figure 1 is a side elevation of the general type of a vessel in which the construction herein described is embodied for illustration. 7 r Fig. 2 is a'side elevation of a part of the vessel wall with parts broken away, on the line 22 of Fig. 1. 1

Fig. 3 i a transverse section of a wall, part of bottom, and some adjacent parts,

for example on a line such as 3 '3 in Fig. 1.

Fig. 4: is a transverse sectional view of a central part of the vessel showing also shaft tunnel and keel.

Fig. 5 is a horizontal section of the stern and stern post.

Fig.6 is a horizontal section of the stem on the line 66 in Fig. 1.

Fig. 7 is a detail longitudinal sectional view of the construction of wall and frames on the line 7-7 of Fig. 8.

Like numbers refer to like parts in all figures.

Wooden walls 8, with railings 8', and bottom 9, of common type are provided, on the lines of a vessel as shown in Fig. 1. metal keel 10 extends from stem to stern and also extends within the hull a desired height. Garboard plates 11 are placed longitudinally along the keel on each side, making the garboard strake. They are rigidly secured to the keel by rivets 11'.

The frames of the vessel are arranged in series and the elements thereof will nowrbe described. A member 12 at the bottom is a vertical plate of desired width, having a flange 13 along its upper edge and a passage opening 14 therein. One .end of the member 12 engages the keel plate 10 and the member extends therefrom to the lower part of the wall 8, decreasing'in width. An angle iron 15 is secured atone side to the keel 10 and also to the member 12 near its end by an angle plate 16. The angle ironl5 QX- tends along thelower part of the member 12 a desired distance and is also secured along oneside to the garboard' plate 11 and the bottom 9 by bolts 17. Near itsopposite end it is secured tothe memberfl2. Alongthe upper part of the member 12, opposite its flange 13, an angle iron 18 extends from the keel lO and is secured to it in convenient manner. A false bottom 19 is secured upon the member 12 by bolts20; A bilge ceiling 21 is secured upon the false b0aom1-9.- The member 12 extends to aframe member-.22 which in turnextends upwardly along the wall 8 and railing 8 to the height ofthe latter. The bulb angle member 22 is secured near'its lower end tothe member 12 by an angleplate 23. A bilgestringer 24 and the wall 8 are secured to the'member 22 by bolts 25. The heads of the bolts 25 may becountersunk in the exterior part of the planking or wall 8 in orderto protectthe bolts better and to provide a smootherouter surface of thewall. A side stringer 26 isarranged the f wall 8 and member 22 by bolts, 27 in similar manner and also by angle irons 28 above the bilge stringer and is secured to having bolts. A side strake 29 'issecured onthe member 22 by convenient means. The

rail 8 is also secured along its side and at its upper-part to the member 22. At a desired heightv and longitudinally of the walls wooden ceiling 29 is secured upon the inner surface of the walls and between the frames with close joints between the ceiling and frames. Transverse beams 30 extend from the members 22 to the opposing like members on theopposit'e side of the hull. The beams 30 are secured at each end to the members 22 and upon' the beams a deck stringer 32 is secured. The beam 80 is flanged and a deck strake 31 secured between it and the deck stringer 32. -A deck 34 is secured upon the beam 30. Across the series of members 22 latticeddiagonal strap braces 35 are secured to the series of frame members 22'and adjacent tothe wall 8, A I

shaft tunnel 36 has a bottom plate .37 se cured upon the members 12. A series of arched angle frames 38 are secured at their lower ends to the frame members 12 and Q 7 r r I 1,353,235

I posing hull walls and the keel plate. Into the wooden stem 45 a vertical stem plate 46 extends and is secured therein by bolts. The plate 46 also extends within the prow. Angled plates 47 extend on each side of the plate 46 and between the ends of the walls 8. The plates 47 aresecured to the stem plate 46 and to the walls by bolts. Acollision bulk-head 48 is provided in the prow and secured to theopposing frames. The frame construction on each side of the keel is similar. 1

It will now be seen that my construction provides a vertical metal keel as the foundation and from it metal frames extend in selies with latticed securing or strengthening means. The whole, as described, forms a metal skeleton to which the wooden bottom, Walls, railing, decks and false bottom are secured. The Wooden'ceiling 29 along the sides between the frames is also very important, as'it adds great strength to the whole. It is intended that it should be of well-seasoned and good quality. material.

post 41 by i The stem and stern are also reinforced as described. I contend that this new and useful construction provides a composite vessel having the strength of all steel construction and the greater added buoyancy of wood construction. Such construction also allows of a vessel lighter in weight than one of all metal, and of some greater carrying capacity. A vessel built according to my invention will have a most economical initial cost and expense for maintenance.

I claim I In vessel construction of the character described, the combination therein of, single metal frames in series-and secured .to each other, a metal keel secured to the frames, Wooden planking secured upon the'outside of the frame skeleton thus arranged, by bolts extending through the frame and plank ma terials, and transverse wooden planking strakes secured to the inner surface of the first mentioned planking to a desired height between the said frames, the sides of the inner strakes adjacent the frames abutting closely against the frames and engaging them with close joints, for the purposes'indicated.

' LARs J. HAGEN. Witnesses W. L. SoUDnRs, DELIA SMITHWRIGHT.

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