US932722A - Ballast-tank for ships. - Google Patents

Description

'Patented Aug, 31, 1909.

citizen of the 'United States,

'UNITED .sTArns PATENTOFFICE.

GEORGE smrson, F eUrNcY, nassacnosn'rrs, AssIGnon ro Fons nIvEB SHIP 'BUnm'me comunal, A c oBronnTroN, .or nAssAcnUsn'T'rs.-

B ALLASTJMNK Fon singes.

Application med Aprilia, 1eos." s'erial ama'zee;

Be it known that I, Gnoncn SIMrsoN,ja

Quincy, in the count'yof Norfolkand State of Massachusetts, have' invented an Im*- provement 1n Ballast-Tanks for Ships, lof

" which the following description, in connecl tion with. the -accompanying drawings,- is "a speclfica'tron, like lettersonv 10.

4 the ldrawings representmgllke parts. 1

.The presentiinvention relates to ballast tanks for' ships, and is embodied in a novel construction'. and arrangement of the tanks,

wherebythesupports forthe tank walls are wholly internal y arranged, and the tanksso disposed as to interfere tothe least possible .extent with the disposal 'of the cargo;

The, tanks may be arranged, in accordance with the' invention, either -longitndinally along the inner sides 'of the ship, or trans-"j versely, .in the` latter case eachtank. preferablyresting upon the top of-oneof the transverse bulkheadsl In .either construction, the trainingfor the walls ofthe tank vat erably arranged with sloping walls resent# 111g a smooth surface' to thefhold whichdoes not interfererwith the stowageof the cargo,

' and-in shippingcoal, for'example, is o f use in distributing coal in the hold and obviat;

' ing the necessity of trimming.'

Figure `1 's a side elevationl of acargo" l boat showing 'the location ofthe'tanks; Fig.

2 is a plan view of the same; Fig. 3 is a lon-y gitudinal section, on line w3 of Fig. .2,jon an enlarged scale; and Fig. Ltis a transverse section, showing the construction of a tank 45. tanks may be locatedbelow the deckb, the

larranged along the lside `of the ship.

deck ythus forming the yto'pof the tank which preferably extends across the ship betweenl adjacenthatch'combings c. The outer wallsd of the, tanksfare vinclined inwardly from top to bottom, as indicated, and the entire su porting frame work-.forthetankwalls is Ilocated within the tank 'so that the tanks I which are located between adjacent hatches residing .in

' cfmdo not in any way interfere with the loading or removalo the-cargo.A

In'the construction shown, the side plates or ywalls al of. the tanksare supported lby internal .ribs d2 strengthened by vertical -and horizontal braces d3- and d4, and the weight of the; tank, as-shown, is mainly supported Hnodication shown. in Figxl, theltanks are .bniltlengthwise of the vessel, the side plates ofthe hullforminoone wall ofthe tank,

toward the side plates-e, `thus bearing a reofthe hull plate -@fand the structure .is -stre r 1gthe'ned .byineans of inclined braces di which extend from the ribs adjacent to the wallplate 134 to brackets d located near the, top lof the tankand .secured to the ribs, f2 and the ltransverse decklsupportingmembers extend theentire'length of' the cargo space,

desired, tanksl of this 4 description located lengthwiseof the 'ship may be 'combined withtransversetanks, oreither may be used separately.

maybe l provided wlth internal "walls or swash-plates d","these walls consisting of plates extending across the tank and pro- :motion offthe ship.l

Claims. "1 A ballast the top of the cargo space 'of the ship and within .the hull 4 and having. its inner wall which is exposedl inl said cargo space smooth and lobstructionless,fsaid .wall being hungv .a-.raming all of which is located wholly vin the interior :of -tl'1e.t'ank, lsaid framing into be connected with the framing 'of the ship,

while the' otherY wall. 031 slopes downward f3, The tanks'constructedgin this way may f videdlwith openings d8 for lightening and. access, vthe plates, however, preventing Inaterial displacement of the water due to the Specication 0i Letters .Patenti 'Ptellfled AllgLSL 1909.

by the bulk-headiframework a. -In the lation4 to"v the cargo --space similar to -that described -in connection. with the transverse tanks. In this construction, the tanks are supported upon brackets f secured to ribs f2 which'extend vertically'along the inner side'- being Vlocated between the sides of the f hatchescz andtheggunwale of the ship. If

'As indicatedin Figs. 2 andt, the tanks i I tankfor ships, located near from the hatch combing, and provided with minding braces fixed t'said Wan .and adapted "2. AA shipphavingprism-shaped or tr1`-v angulaire-shaped ballast tanks,'located length? wise of Athefsliip and having suitablefraining or stii'enig" all of which is arranged Wholly Within the tank, whereby the sur ace of the inner Wall of the tank exposed in the cargo space is smootlnsaid inner Wall beinghung :from the hatch combing, and said framing including -supporting braces connected at one end with said Wall and at the opposite end with the framing of the ship'.

3. Ballast tanks for ships, having atopside fore and aft arranfrement and'provided with framing or stiening members all located wholly inside of the tanks, theinner '.walls of the tanks .presenting smooth exterios to the Vessels hold, said inner Walls being hung from the hatchcombino, and '15 said framing including supporting races rigidly xed to saidwalls and adapted to be connected with the framing of the shi In testimonywhereoffl have signe my name to this specication in the presence of .20 two subscribing witnesses.

o GEORGE SIMPSON.

' Witnesses: I

JAs. J. MALONEY, HENRY J. LIvERMoRE.

Images