US1393601A

US1393601A - Submarine torpedo-boat

Info

Publication number: US1393601A
Application number: US321952A
Authority: US
Inventors: Barraja-Frauenfelder Joseph
Original assignee: LAKE TORPEDO BOAT Co
Current assignee: LAKE TORPEDO BOAT Co
Priority date: 1919-09-05
Filing date: 1919-09-05
Publication date: 1921-10-11
Anticipated expiration: 1938-10-11

Description

J. BARRAJA-FRAUENFELDER.

SUBMARINE TORPEDO BOAT.

APPLICATION FILED SEPT 5. I919. RENEWED JULY 28, 192i.

1,393, 91, Patented ct 11,1921.

3 SHEETS-SHEET I.

m mm Jase v72 2522754 14 frauemfezier v BY 7 A'TTORNEY J. BARRAJA-FRAUENFEPDER.

SUBMARINE TORPEDO BOAT. APPLICATION FILED SEPT 5| I919- RENEWED JULY 28,1321. 1,393,601. P nted Oct 11,;192L

s suing-sneer 2.

J. BARRAJA-FRAUENFELDER.

SUBMARINE TORPEDO BOAT.

APPLICATION FILED SEPT 5,1919- RENEWED JULY 28, 192i.

Patented Oct. 11, 1921.

3ISHEETSSHEET s.

boat.

UNI TED STATES PATENT OFFICE.

.rosnrn nnnnam-rnaunnrnrnnn, or nnrnenronr, connnorrour, assrenon To THE LAKE ronrnno BOAT ooivrrnnr or nnrnenron'r, oonnnorrour, A con- ]?ORATION 0F MAINE.

sUBMAnInr. ronrnno-noar.

Patented Oct. 11, 1921.

- Application filed September 5, 1919, Serial'No. 321,952. Renewedeuly 28, 1921. Serial No. 488,287.

To all whom it may concern: l

Be it known that I, JOSEPH BARRAJA-FRAU- nnrnnnnn, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented new and useful Improvements in Submarine Torpedo-Boats, of which the fol lowing is a specification.

Heretofore, in the construction of submarine torpedo boats installed with after or stern torpedo tubes, it has been the practice to provide fairwater doors for controll ng the torpedoexits in the hull so asto provide smooth water surfaces on the sides ofthe In the constructions wherein the torpedo tubes are arranged in vertical alinement with the longitudinal axisof the boat a so as to discharge directly through the stern,

two fairwater doors are employed and are arranged to open outwardly prior to'the discharge of a torpedo. Such construct on, however hasbeen found objectionable,-s1nce eddies are immediately formed the moment the doors are opened which tend to retard the speed of the boat and to disturb the course of the torpedo since the water will back up into the recess formed by the open doors in an agitated condition. D

The object of the invention is to provlde a construction to avoid the'above stated objections and one in which greater strength of the stern is provided, and greater protection isgiven the outboard or muzzle ends of "the tubes, their covers andtheir operating gear than in the" constructions now :employed, the constructlon' and arrangement being such that all gears and other operatmg mechanism employed for opening and closing the fairwater doors'are dispensed with.

The invention comprises' certain novel features of construction, and novel combinations and arrangement of parts as will be hereinafter fully described and then 'In the drawings, illustrating the invenclaimed.

tion, in the several figures of which like a diagrammatic side elevation of theafter end of a submarine torpedo boat embodying ofFig. 5. Fig. 5 is a vertical longitudinal section drawn on the line 5-5 of Fig. 6,

the torpedo tube and its outboard or muzzle cover and itsoperating gear being shown in elevation. Fig. 6 1s a horizontal f section drawn on the-line 6" -6 of F 5, the tube fairwater doors now employed for incasing the breech ends of the tubes, the doors being shown open in dotted lines illustrating the formationof eddies that are set up when the doors are open. 1 1 designates the after endof the main hull of a submarine or submersible torpedo boat whichis constructed, as usual, of shell plating 2 and ribs 3 which are of sufficient strength to withstand the external pressure incident to submergence. 4 designates the stern section of the boat, likewise constructed of shell plating 5 and ribs 6, but since this section of the boat will be open to the surrounding body of water, as will be hereinafter described, and hence not subjected to'exte rnal pressure, the plating and ribs are preferably of lighter weight material than that of the main hull. The end of the main hull 1, is closed by a bulk-head 7, through which is-extended the muzzle end of a torpedo tube 8,-the said muzzle end being controlled by a cover 9, hinged to an arm 10, carried by a transverse shaft 11 mounted in brackets 12 extending from the outer end of the tube. One'end of the shaft '11, is provided with a segmental worm wheel 13 which is meshed by a worm 14 carried at the outer end of an operatin shaft 15 extended through the'bulk-hea 7 and operable from the breech end of the tube. The

worm-wheel and worm are shown in-dotted lines in Fig. 5 of the drawings, and are inclosed in a water tight casing 16 to prevent the introduction of I any foreign matter [which would tend to clog them. parts are similarly designated, Figure 1. 1s

The stern section 4, in addition to the plating 5 and ribs 6, is constructed with a casting 16, comprising'a vertical post 17 to which the outer ends of the platings 5 are connected, said posthaving inwardly extending dlverging arms 18, to whloh the ribs are also connected, the said arms having recesses in which theribs are seated. The stern post 17 V is formed with a cylindrical flanged-opening" 18"of substantially the diameterof the periphery of the torpedo tube and havmg ts center located iii-longitudinal alinement with the longitudinal center of said tube. The

platings5, between the post 17 and the after rib 6, and also the said rib, are bowed outwardly as atto conform to theradius of the openinglS, thus providing a cylindrical SGCtlOlllll the stern as shown, and bei tween the said rib 6 and its adjacent rib 6, the side, plates are'cut out as-at 19 so as to permit water to flow into and through the said cylindrical section when the bOlli'filS 'in motion either upon or below the surface of the water. i 1. r u

In Fig.8, ofthe-drawings I show a slight modification of construction. in which the stern post is dispensed with but the side plates arebowed outwardlyas at 20 in the same manner as that describedwith reference to the construction. shown 1n the main figures of the drawings, the forward ends of the bowed sections being open to the water as at 20. Y 1

From the foregoing it will bee-seen that during the forward movement of the boat .water will enter throughthe -openings'19 for20- and run out through the cylindrical exit ofthe post 17 hence: avoiding the for- ;rn'ationof-eddies as in the constructions-employing fairwater doors or in constructions wliereinrecesses or. pockets are formed in the-sidesof' the hull. orstern of the boat at rthe'muzzle ends of the torpedo tubes so that speednresisting tendencies and possible defiection of'the direction of course of a tor- H .pedo when fired from a tube is avoided;

By my construction of the stern of 'a boat with a stern post and its forlwardly ex tended arms, I providea more rigid structure than has heretoforebeen devised, and by providing: the sides of the stern with. openings there is added the; furtheradvantage. of permitting readyaccess to-the' outboard or muzzle ends of. the tubes, their covers and operating gear. struction I avoid the employment of oper-' Furthermore by. myconating mechanism for opening and closing the fairwater do'orsand hence thepossible danger of discharging a torpedo when said doors are -closed,s1nce the torpedo w ll have, free exit when the outboard or muzzle'cover of the 7 tube is opened.

.ln order to prevent the formation of eddies at the end of the torpedo tube when .the door is closedI arrange a substantially coneshapefairwater shell. or casing 22 upon the outer face of the cover or'door 9-so'as to direct the. water through the opening 18'." and to prevent its backing up against the. cover or fdoor. The shell 'or casing is pro-. -vided with an opening to. receive the arm 10 of the cover.

hull for opening and closing the closure,

and .a tubular section formed in the stern inalinement-with saidtorpedo tube, said tubular section being open at both ends to the surrounding body of water, substantially as and for the purpose specified.

3. A submarine torpedo boat, comprising. a mam hull constructed to w thstand-the pressure incident tosubmergence and havinga stern sect on iopen tov the water of flotat1on,;sa1d stern section having a; cyllnidrical section open at both endsto the surrounding body of water and serving as a torpedo ex1t and a torpedo tube arranged n the main hull -1n allnement with sald cylindrical sectionand opening within said sternsection. a 4. Asu-bmaririetorpedoboat, comprising ainain hull, constructed to withstand. the pressure incident to submergence and hav- "ing a stern section I open'to the water of flotatiomi a cylindricalsection formed in said stern providing a torpedo exit, the sides of said stern section having openings arranged therein in advancev of said cylindrical. .section, and a torpedo tube arrangedin" the main hull of the boat in longitudinal aline- .jmentwith said cylindrical section, and opening, into the stern sect1on,.a closure for the muzzle-end of said-tube, and means operable the position of said closure. 1

5. A submarine. torpedo boat, having a torpedo vtube opening :through. the Jstern from within themainhull for controlling *thereof, a cylindrical section formed in said stern in longitudinal .alinement. with [said tube, said cylindrical section being open-at both endsto the surrounding body of water, a closure for the muzzle end of the tube, and means operable from within-the boat for controlling the position of said closure.

6. In a submarine torpedo boat; a main hull constructed to. withstand the pressure incident to. 'submergence, and, a stern sec- 'tion formed integral therewith. and open to the surrounding bodyof water, said stern section, comprising a stern .post provided with forwardly extending arms, ribs carried by said"arms,, and shell platings connected to said stern post, to said arms, and to said ribs. i

A submarine torpedo boat, comprising a main hull constructed to withstand pressure incident to submergence, a stern section of relatively light Weight material formed on the end of the main hull and open to the surrounding body of water, a torpedo tube arranged in said main hull and opening into said stern section, a cylindrical section formed in said stern in longitudinal alinement with said torpedo tube, said cylindrical section being open at both ends to the surrounding body of water, a closure for the muzzle end of the torpedo tube, and means for operating said closure.

8. A submarine torpedo boat, comprisin a main hull section constructed to withstand pressure incident to submergence, and a stern section open to the surrounding body of water, said stern section comprising a stern post having aoylindrical opening and forwardly extending arms, ribs connected to said arms, and shell platings connected to said stern post, arms and ribs, said shell platings having bowed sides conforming to the shape of said stern post opening and having openings in advance of said bowed portions, a torpedo tube arranged in the main hull section in longitudinal alinement with said stern post opening, a door for closing the muzzle end of said torpedo tube, and means operable from within the main hull for opening and closing said door.

9. A'submarine torpedo boat, having a torpedo tube opening through the stern thereof, a closure for the muzzle end of the tube, a cylindrical torpedo exit formed in the stern section of the boat and open at both ends to the surrounding body of water, and a fairwater shell or casing carried by the torpedo tube closure.

10. A submarine torpedo boat, having a torpedo tube opening through the stern thereof, a closure for the muzzle end of the tube, a cylindrical torpedo exit formed in the stern of the boat and open at both ends to the surrounding body of water, and a substantially cone-shape fairwater casing or shell carried by the torpedo tube closure.

In testimony whereof I' have hereunto set my hand this 22nd day of August, A. D. 1919.

JOSEPH BARRAJA-FRAUENFELDER.

Witnesses:

F. S. GoonELL, EMERY W. EATON.