US1492981A

US1492981A - Ship

Info

Publication number: US1492981A
Application number: US164043A
Authority: US
Inventors: Myron F Hill
Original assignee: Myron F Hill
Priority date: 1917-04-23
Filing date: 1917-04-23
Publication date: 1924-05-06
Anticipated expiration: 1941-05-06
Also published as: FR489978A; GB115633A

Description

May 6, 1924. r w 1,492,981

' M. F. HILL SHIP Original Filed April 23. 1917 3 Sheets-Sheet 1 [NV/ZN TOR.

May a, 1924. v

v M: F. HILL 1,492,981

SHIP

Original Filed April 25. 1917 I5 Sheets-Sheet 2 IE:; 7 36 .E

avwmitoz M W 1m May a, 1924. 1,492,9 1

M. HILL SHIP Original, Filed April'zs. 1917 s Sheets-Sheet 5 avwewtoz Patented May 6, 1924.

UNITED STATES MYRON F. HILL, OF NEW ROCHELLE, NEW YORK.

SHIP.

Application filed April 23, 1917, Serial No. 164,043. Renewed September 15, 1923.

To all whom it'may concern:

Be it known that I, MYRoN F. HILL, a citizen of the United States, residing at New Rochelle, in the county of Vestchester and 5 State of New York, have invented certain new and useful Improvements in Ships, of which the following is a specification.

My invention relates to ships and to a process of construction therefor.

The urgent necessity of providing ocean transport at the earliest possible moment, of developing raw material into the finished product in order to solve the problem of immediate transfer of food, munitions and men across the ocean, and to make up for the loss of shipping due to submarine depredations make'it urgently desirable to eliminate as much labor and as many mechanical processes as may be possible in the manufacture' of ships.

One object is a ship cast in sections adap ed to be fastened together.

Afurther object is to make it possible to unite ship sections by depositing welding metal between the edges to unite plating and ribs into an integral body.

Afurther object is to sosimplify the design that a single midship section may be a duplicate of many other midship sections, thus simplifying designing, drafting, pattern making and molding.

-A further object is to provide for a double skin or plate construction where desired.

Another object is a system of construction eliminating connection metal.

Another object is to reduce theweight of all sheet metal portions by making inside surfaces corrugated or ribbed.

Another object of my invention is to provide water tight ,air cells to render the hull more buoyant in case it should be torpedoed.

In the drawings Fig. 1 shows the side elevation of a hull.

Fig. 2 shows a cross section thereof for a hull havin single plating.

Fig. 3 s ows in plan view how sections may be united.

Fig. 4 shows a plan view of how sections.

Fig. 5 shows an internal view of part of, or a whole section.

Fig. 6 shows an edge view thereof.

Fig. 7 shows a section of a hull having a double skin or plating.

Fig. 8 shows a plan of coring.

Fig. 9 shows a section made with two core sets like that shown in Figure 8.

Fig. 10 shows a plan view of such a section with upper plating removed to show the ribs. I

Fig. 11 shows a rudder postsection.

Fig. 12 shows a detail.

Fig. 13 shows a plan view of Fig. 11 with upper deck removed.

-In Fig. 1 the hull is shown divided into section 5, 6, and 7, preferably electrically welded together by arc welding with a metal, welding electrode into an integral hull.

The keel may be cast solid as at 8, and side portions of the plating 9 and parts of the ribs, 10, may be cast integrally therewith. The sections 11 similarly cast with rib portions may be integrally united by electric arc welding to the section 8910, by joints 12. Similarly other sections of the hull may be cast and united thereto. In Fig. 3, the 7 section 13, provided with the integrally cast rib 14, may be welded to sections 6, which may also have similar ribs 15, and joints 16.

A stem section having the stem 17, and plating 18 maybe welded at 19 to other plates, 13 for example,'similar to that in Fig. 3.

Gates at 22 (see Fig. 5) may be provided in the mould, and gates may beapplied to the rib 15, to distribute the molten metal. Ribs 20 and 21 may assist the .flow, thus providing stronger plates more securely united to the rib 15. Such an 'irregular surface may be applied to all sections, preferably, though not necessarily, .to the inside surfaces.

The edges of all sections in aship may be chamfered as at 23 to provide the V- shaped groove most suitable for electric welding where plates or ribs meet.

Fig. 7 shows a preferred form of hull. The lines 24 represent the welded joints or seams between the sections.

The sections 25, 26, 27, and 28 may Iepresent a complete transverse division of empty the hull. The pattern for section 25 will serve to cast all the upper rows of sections on the two sides of the hull of similar crosssectional form. 25. 25, etc. and 28. 28. etc. The pattern for section. 26 will serve' to cast all sections along the keel. such as 26, 2G; 27. 27 etc. until the bow and stern sections are reached. Sections 26 and 27 may be cast as a single unit if desired. the openings in the keel at 29 being cored. If cast separately. the middle member 30 may he a separate casting united 'to the other two by welding at 31 and 32.

Manholes 433 may be provided here\'. .r desired to enable the welder to crawl between the two skins towcld'the edges of the ri s together. These holes may have disks welded over them and pipes may he welded through the plates so that the chambers in the. castings may be used for liquid fuel, ballast. or other liquid storage. a suitable pumping system being employed to fill and the same where desired. These chambers being air tight and water tight by reason of the welded joints also provide. buoyancy suflicient to largely contribute to the buoyancy of the vessel. Their subdivi sion longitudinally by transverse partitions assures such independence of the air chambers as will guard against flooding from penetration or injury except. in the immediate neighborhood of the points of penetration.

Deck sections 34 may be cast (or rolled) and welded to the hull and to each other.

Bulkheads may be provided, both transverse and longitudinal and welded into the ship.

Bilge keels 36 may also be integrally welded and. if desired. cast hollow by suitably coring in the mould.

l-latchways 37 maybe cast in the deck sections where desired in the usual way.

'The hull may be provided with lower deck openings 38 if desired. cast in the sections.

In Fig. 8 is shown a core for a section 26 or 27. If these two sections are cast together the right hand end of the core posts 39 may rest in the .core forming a space 29 in the keel.

By these means a few patterns will serve for castings for most. of the boat. Flaws may be healed by electric welding.

In the double skin the cores may have ribbed surfaces so that the invisible or in ner surfaces of the double plating have the checkered ribs as shown at it) or 41. (onnecting ribs 27 and 27" may also be provided as shown in Figure 10. The moulds may be gated at: the ribs or edges or at 4'2. or anywhere desired. and also properly vented.

Frames for port holes 43 may be cast integral in the sections wherever desired, as

takes occur in size.

well as all other details of equipment or mountings therefor capable'ot such treatment.

Extra strength of plating, ribs and mountings may be cast for engine foundations. Reinforcing metal. may be addedwhere needed.

(lips 44 and 45 may be cast on or electrically welded to all edges that have to register with each other to guide each other into place. These clips should be applied to the inside of the plating between the two skins and to the edges of ribs where they are to meet. but at. points where the metal may be bent by the clips if not in proper registration.

The keel sections may be laid first. faired up by measurement. supported on ays by the usual means and welded together. Then the side sections may be applied, trued up by measurement andwelded. Before assembly the edge-s of the sections may, if desired.- be trued to templets or gages by hammering or bending under hydraulic presses if necessary. and the edges trimmed or cut by tho oxy-acetylene flame. if mis- Flaws may be healed by electric welding. or by welding on patches. The rudder post 46 may be inserted upward through the hole 47 and the socket 48 thereafter fitted to the post and welded to the keel at 49. i

It is generally estimated that riveted 7 weakest points is so widespread that the injury at any joint is not so severe but that it can be remedied by dry docking and tightening.

By casting larger sections with integral ribs, the number and extent of joints is very greatly reduced. This is only practicable however when the joints are substantially stronger than riveted joints.

According to my invention. the desired additional strength of the joints may be attained up even to the condition of joints stronger than the plates.

The problem of joining sections of cast steel together is quite different from the prollflem of joining together plates of rolled stee Rolled steel plates have hard. smooth surfaces created by rolling.

Cast steel plates do not have such surfaces but have surfaces that are rough because of being molded in sand.

If it was attempted to rivet together the edges of such cast plates, the tops ofthe roughnesses of the plates would be brought into contact, leaving many. openspaces between them and forming crevices for the introduction of water and consequent corrosion.

of being weaker than riveted joints between rolled plates become stronger than such joints, for cast steel welds,most successfully.

The casting is preferably accomplished by employing the latest engineering principles such for example as is known as the block system of moulding.

. Rolled sheet metal sections may be welded to castings where ribs are not required for strength.

I prefer to employ a system of Welding providing welded joints stronger than the adjoining metal in the castings. If the joints were weaker. crystallization would be concentrated at, the joints and in time disrupt them. It is recognized that the idea has been suggested of building a ship by bolting together a number of cast metal sections which are provided with edge flanges bolted together. Such a ship however would be subject to the disadvantage that the seams would tend to bend about the bolts and cause leaks. With the present invention the edges of the shell segments are secured to each other end edge to end edge, that is directly edge to edge, without the use of flanges. By this construction the joints receive direct tensile and compression stresses, so that bending stresses such as are exerted on the joints of flanged shell segments are avoided. It is to be understood that the drawings are intended merely to show the general idea pf one form of my invention without attempting to indicate the exact location of each stiffening rib or girder in its relation to the shell plating throughout the entire ship.

It is also to be understood that the particular form of cast steel plate shown here in detail is only one illustration of the application of my invention. Obviously the castings may vary in dimensions and type to suit the requirements of any particular ship within the general principles of the invention.

Many variations lie within the scope of my invention, the features of construction shown being merely illustrative .of its general character.

'hat I claim is 1. A ship hull having shell plating and internal strengthening ribs or frames composed of .sections, each section comprising integral shell and frame members and adapted to be handled as a unit for and dur ing the erection of the hull, said sections being united at their edges, the edges of the shell portions of one to the shell portions of another, and the edges of frame members of one to frame members of another to form continuous girders.

2. The combination claimed in claim 1, having each of the said sections formed of cast metal, and having shell and frame members cast integrally in the samemold.

3. The combination claimed in claim 1,

comprising a plurality of sections of duplicate form.

4:. The combination claimed in claim 2, comprising a plurality of sections of duplicate form.

5. The combination claimed in claim 1, having sections extending from the bilge to the rail and othersections extending from the bilge to the keel.

6. The combination claimed in claim 2, having sections extending from the bilge to the rail and other sections extending from the bilge to the keel.

7.- The combination claimed in claim 1, comprising a plurality of sections of duplicate form extending from the bilge to the rail and other sections extending from the bilge to the keel.

8. The combination claimed in claim 2, comprising a plurality of sections of duplicate form extending from the bilge to the rail and other sections extending from the bilge to the keel.

9. The combination claimed in claim 1,

having said frame members lying in two di- Iii) directions at angles to each other and having integral joints.

11. The combination claimed in claim 1, comprising aplurality of sections of duplicate form, having said frame members lymg in two directions at angles to each other and having integral joints.

12. The combination claimed in claim 2,

comprising a plurality of sections of duplicate form, having said frame members lying in two directions at angles to each other and havingintegral joints.

13. The combination claimed in claim 5, having said frame members lying in two directions at angles to each other and having integral joints.

14. The combination claimed in claim 2,

having sections extending from the bilge to the rail and other sections extending irom the bilge to the keel, and having said frame members lying in two directions at angles to each other and having integral joints.

The combination claimed in claim 1, having the edges of the shell and frame members of one section Welded to corresponding members of the adjoining section.

16. The combination claimed in claim 2, having the edges of the shell and frame members of one section welded to corresponding members of the adjoining section.

17. The combination claimed in claim 3, having the edges of the shell and frame "members of one section welded to corresponding members of the adjoining section.

18. The combination claimed in claim 2,

comprising a plurality of sections of duplicate form, having the edges of the shell and frame members of one section welded to corresponding members of the adjoining section.

19. The combination claimed in'claim 1, having sections extending from the bilge to the rail and other sections extending from 3 the bilge to the keel, and having-the edges of the shell and frame members of one section welded to corresponding members of the adjoining section.

20. The combination claimed in claim 2;

having sections extending from the bilge to the rail and other sections extending from the bilge to the keel, and having the edges of the shell and frame members of one section welded to corresponding members of 40 the adjoining section.

21. The combination claimed in claim 15, having the said edges butt welded.

22. Thecoinbination claimed in claim 16, having the said edges butt welded.

23. The combination claimed in claim 1?,

having the said edges butt welded.

24. The combination claimed in claim 18,

ardized units, each containing longitudinal and transverse stifi'eners cast integrally with one another, the end edge of the stiffener of one unit being joined directly to the corresponding edge of the stifiener of the adjoining unit.

28. A ship hull consistingof a plurality as of cast steel sections provided with horizgntal stifieners welded end edge to end e a e.

59. A ship hull composed mainly ofsections, each section havin and internal strengt ening ribs and ada ted .to be handled as a unit daring the bail ing of the hull, the edges of the shell plating of one section being joined directly to the edges of the shell plating of the adjoining sections. I v.

30. A ship hull composed mainly of sections,

.eaclr section having integral shell plating and internal strengthening ribs and ada ted to be handled as a unit during the building of the hall, the edges of the shell lating of one section being joined direct y to the edges of the shel latingof the adjoining sections, said sections being formed of cast metal.

31. A ship hall composed main] of sections, each section having integral s e11 plating portions and internal strengthening frame members and ada ted to be handled as a unit durin the bail ing of the hull, the edges of the s ell platin portion of one section bein joined direct y to the edges ofthe shell p ating portion of an adjoining section, said sections being-formed of cast metal and the frame members of each of said sections being joined to the frame members of neighboring sections.

32. A ship hull composed mainl of sections, each section havin integral s iell plating and internal strengt henin frame members and adapted to be han led as a unit during the building of the hull, the edges of the shell portions of one section being joined directly to the edges of the shell portions of the adjoining sections, said sections being formed of cast metal, the frame members of each of said sections being joined to the frame members of neighboring sections directly edge to edge.

In testimony whereof I allix my si ature.

MYRON F. IT ILL.

integral shell plating 65