US1285182A - Ship. - Google Patents

Description

2 SHEETS-SHEET l- Intwmd Nm'. 19, 1918.

L. HOFFMAN.

SHIP

APPLICATION VFILD MAR(l 25. 1918.

L. HOFFMAN.

SHIP. APPLICATION FILED MAR. 25| |918- 1,285, 182. v Patented Nov. 19, 1918.

2 SHEETS-SHEET 2.

6291451493: v.' Mu

`the numeral 1 designates an LOUIS HOFFMAN, or ssn FRANCISCO,

un eff-raras narrar orrion CALIFORNIA.

SHIP.

Application filed March 25.

To all whom it may concern:

Be it known that I, Louis HOFFMAN, a citizen of Russia, residing at San Francisco, in the county of SanFra-ncisco and State of California, have invented certaink new and useful Improvements in Ships; and l do de clare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to whichy it` appertains to make and use the same.

My invention has for its object to provide an ocean-going vessel which will be practically immune from torpedo attack, the ship being constructed of upper and lower hull sections spaced apart suiiieiently to permit an approaching torpedo tor pass between the two without injuring the vessel, provision being made however for localizing the injury as much as possible Ain casethe torpedo should strike and explode. f With the foregoing in view, the invention resides in the novel features of construction and unique combinations of parts toy be hereinafter fully described and claimed, the descriptivo matter being supplemented by the accompanying drawings which form a part of this speciiication and in which:

Figure 1 is a side elevation of the yimproved ship Fig. 2 is a central vertical longitudinal section;

Fig. 3 is a horizontal section on the plane of the line 3-3 of Fig. 2; and

Figs. l and 15 are vertical transverse sections on the planes of the lines -i and 5--5 respectively of Fig. 2.

ln the dra-Wings; above briefly described,

upper hull sec-y tion floating substantially on the surface of the water, Vwhile the numeral y2 designates a lower submerged hull spaced below the hull section 1 suiiiciently to permit torpedoes to pass between the two, the front and rear ends ofthe two hull sections however being joined to provide stern et of usual construction, so that as little resistance as possible is Odered to the progress of the ship, said prow Yand stern being honey-combed with air tight compartments 5, whereby even though one` part yof said stern or prow be injured, the remainder Y thereof will not be Hooded. j

Extending vertically between the` two hull sections 1 and 2 and securing them together, are longitudinally spaced struts 6, the inner edges of said struts being preferably of Specification Oi Letters l'atent.

n hull section,

a prow Y3 and ,Y

1918. Serial No. 224,590.

ratentea Nov. I9, 1918.1

semi-cylindrical formation as seen at 'i'.

while the outer edges thereof are beveled to substantial knife edges asshown at 8 to-.provide torpedo Adeflecting means. Further-` more, to provide additional deflecting means, the bottom 9 of the upper hull section 1 is inclined upwardly atl its edges as' shown in Figs. l and 5 and lower hull section plurality of vided through the parts 9 anc S of the struts 6, form iiared ends for guiding the torpedoes through said passages, it being intended that they thro ugh without in any manner injuring the vessel.V Even should one or more of the struts G be damaged, however, water will not be admitted into either the upper Or the lower since the ends of said struts are closed against communication with said hull sections as shown clearly in Fig. 4. Also, each strut is preferably divided into a pair of compartments by a vertical partition 12, so that injury to one part of the strut need not affect the other.

The upper hull section 1 will be used principally for carrying the passengers, while the machinery of the ship and any cargo will be stowed in the lower hull section 2, the two hulls being in communication by means of preferably cylindrical vertical passage mem bers 13 and 14, said passage members 13 having suitable doors or hatchways 15 opening into the hulls 1 and 2, while the passage members 14 in addition to being provided with hatchways or doors, open onto the upper deck lof the vessel. Suitable stairways, elevators or the'like may be provided the passage members 13 and lfi but for illustrative purposes need not be shown. InAY all cases however these passage members are preferably located between certain of Vthe struts 6 as shown in Fig. 3, so that said struts` will guard said [passage members against torpedoes.A

The interior construction of the hull sections 1 and 2 will vary according Vto rthe,

uses of the ship, butin most cases the section ,L1 will be provided with a horizontal door 16,

will extend while Va centralV compartment 17 longitudinally, through the lowerV section .2, whereby to provide airtight compartments 18 along the edges of said last-named section the top 10 of the, 2 inclines downwardly aty its edges as also seen in the gures referred to, By the arrangement of parts described, a torpedo passages P are pro-i the ship and the inclines ot, i 10 together with the bevels shall pass freely and similar compartments 19 and 2O above and belenv said compartment l?, this provsion being preferable. in order that injury to one part of the hull section 2 and flooding thereofk with Water need .not aleei the remainder `hereol The eonipartnienrs 18 and 2O may be used for carrying cargo if desired, in which case it would be neoeesarg1 lo provide suitable bulk heads 2l to out oil communication with `lhe central compariment l? Whenever necessary (see Fig. el).

From the foregoing, taken in connection with he accompanying drawings, it will be obvious that alhough my invention is ol" rather simple nature, it will be practically invulnerable ro torpedo ar-rack. Bren though cert-ain parts of the ship be injured, the remainder thereof will be unaleeed and Will remain in a seaworthy condition. Due to Irheee adwfantages, the; 'improved vessel is particularly Well adapted for use as a trans port or passenger fessel, burl equall)v Well applicable as a freighter.

Since probablyv the best results are obehown and are preferably emtained from the several details described, these details reeeaee ployed, but Within the scope of the invention as claimed, numerous minor changes may Well be made.

l claim:

In a rorpedo resisting ship, a hull partly below and partly above the, Water line, said hull haring throughout the greater part ol' its leuglh a `longimdinal torpedo passage Whiehopeus `through the sides of 'he hull at a distance below the Water level e ual lo the traveling depth of a torpedo, the top, bortoin and ends of the passage being beveled to direct torpedoes into said passage, the stern and prow f J[he hull between he ends of said passage and the extreme ends of said hull being free from openings below the Water level and being` honey-combed With air-righe compartments.

ln testimony hereof l have hereunto Set my hand in The presence of rufo subscribingv ulinesses.

L( )U18 HGFFMAN.

B. H. Rrvrsn.

eeeh, by edreesng me Commissioner of Eateae,

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