US1877235A

US1877235A - Hull of ships

Info

Publication number: US1877235A
Application number: US558393A
Authority: US
Inventors: Goodyear James Wallis
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-10-30
Filing date: 1931-08-20
Publication date: 1932-09-13
Anticipated expiration: 1949-09-13

Description

Patented Sept. 13, 1932 i STATE-s PATE mint` or smrs Application. mea August 2o, 1931,.s eriainogsasas, and m Greatv Britain october so, 1930.

The presentinvention relates to hulls of ships or other vessels.

The object of the inventionis to reduce the resistance of a ship to propulsion through the 5 Water in Which itis supported".v l

According to the present invention, irregularities in the surface of a ships hull beneath the Waterline caused by the lappedV joints and the like ofthe hull plates are faired by means of insertions or fairingI members of tapered or substantially triangular cross section.`

The invention may be carried into practice in various Ways. For instance, insertions or fairmg members may be cut from a rolled bar of triangular sections of say six inches Width and of maximum thickness equal to:

the thickness of the plates, the laps of Which are to be faired. These insertions may be Welded or preferably spot Welded to the hull and caulkedk against the hull" plating along one or moreedges or if desired they'may be riveted or boltedA thereto. Alternatively, in-

sertions of cast metal may be employed.

ln one method of securing triangular sec;- tion solid metal insertions to a hull, such insertion is spot Welded at its thin edge to aninner strake of plating and at itsthick edge to the edge of an outer strake-of plating. The

thinedge of the insertion is ca-uflkedi against said inner strake and the thick ed-'ge thereof is caullked along its outer face against theedge ofV said outer strake of-plating. Alten natively, the thin edge of the insertion may` be continuouslylwelded to an inner strake of plating Wherebycaul-king alongthis; edge is:

eliminated.

In; an alternative arrangement of solidmetal triangular section insertions, each insertion issecured to theinner strake` of plat- 405 ing in such a disposition that the broad edge.

of the insertion is slightly displaced, say by l or 1/2 from the edge ofan outer strake of plating. Thethin edge of the insertion is spot Welded and canlkedy to the inner strake of plating or alternativelyit may be conf tinuously Welded thereto. The thick edge of the insertion is 'Welded or'preferably spot Welded to the inner strake, and the space between the insertion and the adjacent edge of the outer strake of hull plating is filled securedY thereto inany other desired manner such asiby riveting. l Further the space betvveenthese stampings and the hull may be," lilled With cement or other suitable material..

In each of the above mentioned cases, a joint canvas or like material impregnated With red lead paint or the like may be provided' between the insertion. and the hull to:

NnOFFCSELf Vspot Welded to the hull, but'may of course be protect those parts of the hull which arecov ered by the insertion and which cannot, therefore, be painted frequently.

As a still. further alternative, the fairing may consist Wholly of cement, bituminous cement, tar or the 'compositions Which may be reinforcedl by means of Wire netting, eX-. panded metal or` the like which may be los cated on or slightly belowthe surface of' such insertions. n i

rThe reinforcementV is preferably secured to the hull by one or more short pins, colfumns or thelike which may be Welded or otherWise secured to the hull and to the reinforcement.

Again', the cement or like insertions may be reinforced' by the provision of rag bolts, metal barsor the like secured to the hull, or-v by a combination of this latter With WireI netting, expanded' metal or theflike.

The invention is more particularly `described by Way oflexample LWith referenceto theaccompanying drawing, in Which Figure 1 is aV sectional vievv of one forni` of fairing according to the-present invention.

Figures 2, 3' and 4 show similar views of' three otherforms.

ln the arrangement shovvn in Figure 1 a pair of plates 1, 2 are secured together to' sie".`

' displaced by ashort distan@V from the edge 10 il of the plateY 1.

form a lapped jointby means of rivets 3, the edge .4. ot the plate 1 which lies on the outside'uot the hull is faired by means of a solid metal insertion 5 of tapering section which has a recess 6 formed in its thick longitudinal edge.

The insertion 5 is secured to the inner plate 2 by any suitable means such as welding', spot welding or riveting and is The space so In ythe arrangement shown in lFigure, 2,

the fairing Sina-y consist of concrete, bitumi-..

nous lconcrete,--tar or other suitable material. Short studs or pillars 9 are secured to the plate 2 by welding, rivetingl or screwing for assisting in holding the insertion in position. It desired, additional reinforcementv forthe insertion mayconsist 'of expanded metal or wire netting 10 extending between the said studs or .pillars breadth of the fairing. y

In the arrangement shown in Figure 3 a and across the airing or insertion 11 of concrete or other suitable material is reinforced by expanded metal or wire netting 12 which is spot welded

atspaced points

13, 14, 15.

Ink-'the construction according to Figure Il a cast metal insertion member 16 has countersunk ,openings formed therein for the recep-V tion of the screws as at 17 adapted to secure thefairing in position. The screw 17in thek example shown is threaded into a nut niember 18l welded to the hull. Thev space 19 between the insertion 16 and the hull may be filled with concrete or other suitable material.

I declare that what I claim is 1. A ships hull including plating above the water line, plating below thewater line, all arranged and secured .in overlapping relationship and tapered insertions for iairing those edges which are formed by said overlapping plates below the water line and which extend substantially normally to the longitudinal aXis kof the hull. c f

2. A ships hull including plating above the water line, plating below said water line,

means tointerconnect said plates to present external edges substantially normal to the path of the ship, and aplurality of airings, eachwof varying thickness in cross section,

formed .between the edge 4. oit' the plate 1 and the groove 6 is filled with cement, bituminous concrete or otherAV like y between said edges and the tlat'surfacesof said plates. Y

3. A ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, and fairing members of varying thickness and substan-V tially tapered in section for iilling'in those irregularities which are ormedby said overlapping lplates in the tace of the hull beneath the waterliiie and which extendsubstantially .normally tothe longitudinalfaxis of the hull.

lli. A ships hull comprising a plurality Yof plates,means for interconnecting said plates in overlapping relationship, solid. metal airl ing memberslof vvarying thickness andv substantiallytapered .in section for filling in those irregularities whichare formed by said overlapping plates .in the face of the hull beneatliA the 'waterline and which extend sub. tantially normally to the longitudinal aXis of the hull and rivets for securing said fairing members to said plates.

5. A ships hull comprisinga plurality of plates, means Jfor interconnecting saidl plates in overlapping relationship,v and metallicV iairingfmembersot varying thickness and substantially tapered in section securedto said plates bywelding vfor filling in;l those irregularities which are formed by said overlapping platesin the face'of the hull beneathV the waterline and which extendsubstantial-r ly normally to the longitudinal axis of the hull.

6. AY ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, and metallic fairing members of varying thickness and substantially tapered in sectionwhich' areA continuously welded to the hull along their thin edgesand spot lwelded and caulked along their thick edges for filling in the irregularities tormedrin the :tace 'of the hull by theA overlapping plates. Y y

7 A ships hull' comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, solidy metal insertions'of tapered section secured to the hull each with its thick edge slightlydisplaced from the edge oi' a'hull plate'and with its face lying against the face of said plate, and fillings of cement each between thethick edge of 1an insertion and the edge of the corresponding hull plate.

8. A ships hull comprising a plurality of plates, means Jfor interconnecting said plates in overlapping relationship, solid metal insertions of tapered section secured to the hull eachl with its thick edge slightly displaced from the edge of a hull plate and having a groove formed longitudinally thereof and with its face lying againstthe face osaid plate, and iillings ofV cement each between the thickedge of'an insertion andthe edge of the corresponding hull plate, said cement also fillingsaid groove in said insertion to lock the same in position. Y

9. A ships hull including plating above the water line, plating below the water line, all arranged and secured in overlapping relationship and tapered insertions of cement for fairing the edges formed by said overlapping plates below the water line.

10. A ships hull including plating above the water line, plating below the waterline, all arranged and secured in overlapping relationship and tapered insertions of cement reinforced with a metal frame for fairing the edges formed by said overlapping plates below the water line.

11. A ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, cement fairing members of varying thickness and substantially tapered in section for filling in the irregularities formed in the face of the hull by the overlapping plates and metallic reinforcement means enclosed within said cementfairing members.

12. A ships hull comprising a plurality of plates, means for interconnecting said `plates in overlapping relationship, short studs secured to the faces of said plates, cement fairing members of varyingthiclmessand substantially tapered section for lling in the irregularities of the face of said hull formed by said overlapping plates, said fairing members enclosing said studs which form reinforcement means therefor, and additional reinforcement means for said fairing members secured to said hull.

13. A ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, short studs secured to the faces of said plates, cement fairing members of varying thickness and substantially tapered section for filling in the irregularities of the face of said hull formed by said overlapping plates, said fairing members enclosing said studs which form reinforcement means therefor, and expanded metal reinforcement means within said fairing members which means are spot welded to the hull forv further reinforcement of said fairing members.

14. A ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, and fairing members formed of light metal stampings of tapered section which are welded to the hull plates below the water line thereof for lling in the irregularities in the hull face below the water line.

15. A ships hull comprising a plurality of plates, means for interconnecting said plates in overlapping relationship, cast metal fairi ing members of varying thickness and substantially tapered in section with countersunk holes formedtherein for filling in the irregularities formed in the face of the hull by Jthe overlapping plates and y'screws for se-` Y curlng said fairing members to said plat/es.V

16. A ships hull comprising a pluralityA of plates, means for interconnecting said plates in overlapping relationship, cast metal hull plating consisting of a cast metal plate of tapered cross section having countersunk holes formed therein and having a lip formed along its thicker longitudinal edge.

In witness whereof, I have hereunto signed my name this 14th day of July, 1931.

JAMES WALLIS GOODYEAR.

7o f fairing' members of tapered section secured,