US1863810A

US1863810A - Boat engine

Info

Publication number: US1863810A
Application number: US398432A
Authority: US
Inventors: Spencer Lorillard
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-10-09
Filing date: 1929-10-09
Publication date: 1932-06-21
Anticipated expiration: 1949-06-21

Description

June 21, 1932., SPENCER 1,863,810

BOAT ENGINE INVENTOR [on/lam .5

ATTORN EY and particularly the stern.

lightness in weight for power developed it' Patented June 21, 1932 LORILLARD SPENCER, OF NEW YORK, I\l'.

BOAT ENGINE Application filed October 9, 1929. Serial No. 398,432.-

This invention relates to engine installations for boats and particularly to means whereby the conventional outboard motor can be used as an inboard installation.

More specifically, my invention contemplates a gear box or housing, including a propeller shaft with appropriate gearing for driving the same, and means for securing the housing of the vertical drive shaft of an outboard motor to the gear box, together with 'means for coupling the drive shaft of the motor to the gear mechanism within the gear box. Of course, the gear box will be appropriately mounted on a bed or the like within the hull of the boat.

Outboard motors today are powerful and capable of driving boats of considerable size. Their use is not limited to small open boats as they were originally. These motors have been successfully used as auxiliaries to sailing yachts of the smaller type but it has been a difiicult problem just how to suspend or support these motors from such boats without alterations or additions to the hull of the boat Because of the has long been recognized as very desirable to provide sailing yachts and the like with the outboard motor, if it could be conveniently "30 mounted. Such contraptions as Outriggers have been used, to which the motors are secured, and the outboard motors have been used as inside installations by providing a well on the inside of the boat in which the out-board motor and its propeller is suspended.

changes are undesirable. The present invention seeks to overcome the ob ect1ons and toprovide a practical. and efiicient installation within the'hull of the boat for the lightbut powerful outboard motors without in any way requiring the redesigning or altering of the hull of said boat.

Obviously these heretofore necessary" reversing propeller mechanism,

lescribed for peller "driving mechanismf This arrangement permits the hinging or folding back of the lower end of the shaft casing including the propeller to facilitate the easy handling or transporting of the outboard motor.

r'inotheradvantage is cheapnessin manufacturing cost.

An object of the present invention is to provide for securing in place of the lower end of the drive shaft casing the improved form of gear box to be hereinafter described in the present application, or conversely, the gear box including a propeller shaft extending out through the stern of the boat is mounted, in any preferred manner within the hull of the boat according to the shape and type of boat,

and the outboard motor with its lower portion and. propeller removed is securely mounted on the top of this gear box, the necessary coupling being provided between the lower end ofthe motor drive shaft and the gearmechanism, whereby said gear mechanism and propeller will be driven by the motor. r v Another object of my invention is to provide a gear box and propeller arrangement with interchangeable mounting means, for the motor and also interchangeable couplin betweenmotor shaft and gearingstub sha t to accommodate different sizes of motors, as well as motors of different manufacture. A further object of the invention is to incorporate with the gear box or casing a water pump driven bythe propeller shaft, for supplyingthe necessary cooling waterto the engine cylinders V 7 Another exemplification of the, invention is the incorporating with the gear .box of 1a The invention is shown and a small sail boat installation by way of example, although it will of course be understood that the invention is not necessarilyflimited to any particular type or shape of bull or design. of boat. l

' Other and further objects of my invention will be apparent from the following specificationtaken in connection-with the accompanying drawings, whereixi- Figure 1 is a plan view of the stern portion gear box drive mechanism.

Referring to the drawings in detail, 1 represents the stern or after-end of a sail boat hull having properly located within the hull "a gear box 2 supporting in one end of the box inappropriate bearings a propeller shaft 3 to which is secured any .convenient type of propeller 4 the shaft passing through any preferred type of stern bearing 5.

The inner end of this propeller shaft within the gear box is provided with a bevelled gear 6 adapted to mesh with'a bevelled gear 7 keyed to a vertical stub shaft 8. This stub shaft 8 is rotatably mounted in a-supporting bearing-9 which in turn is supported within the gear box by radially disposed arms or the like 10, the outer ends of said arms being secured to the upper face or cover 11 of the gear box by suitable bolts or the like whereby the bearing 9 will be properly positioned and rigidly secured within the gear box or housing. The cover is intended to be secured in place so as to be readily removable in any desired manner.

The lower section of the motor housing 12 carrying the conventional outboard propeller having been removed in the manner as hereinbefore referred to, the upper section of the motor drive shaft casing 12 housing the drive shaft 13 is secured to the upper face of the cover 11 of the gear box by bolts or the like 14. As also previously stated, when the motor is to be used as an outboard motor the drive shaft 13 is so constructed at this intersection as to forman interlocking joint with the shaft driving the propeller when the lower section is brought up and clamped to the lower end of the housing.

In the present installation this lower end of the shaft, indicated in Figure 2 by the numeral 15, is adapted to interlock with a coupling 16 to be keyed or oth'erwise locked to 'the head of the'stub shaft 8. Coupling 16 is removable and interchangeable so that couplings of different sizes may be used according to the size, style or power of 'motor and shaft with which the gear box is to be used;

As has been indicated it is desirable to arrange the gear box so as to readily accom- -modatediflferent size and different types of motors,'such as those of different manufacturers. With myimproved arrangement this being one feasible solution thereof.

A rotary pump housing 17 enclosing a rotary or centrifugal pump 18 of any preferred design is shown as being secured to and driven by the propeller drive shaft and mounted within the gearbox Housing 17 may be formed on the inner face of that end ofthe gear box through which the propeller shaft passes and concentric therewith, or the pump may be mounted any othensuitable place. This centrifugal pump is for the purpose of supplying the necessary cooling water to the engine cylinders. The inlet end of said pump is provided with a" pipe 19 extending outboard of the hull in the usual manner, and

the discharge outlet of the pump is connected to the usual supply pipe 20 extending downwardly within the motor shaft casing 12. Since it is proposed to mount inboard a motor that normally is mounted outboard where a certain amount of air cooling is obtained in addition to the water coolingthat is provided, I use a pump of a largercapacity than theretofore provided for motors of that type thereby insuring an amplesupply of water to efficiently cool this type of motor. The discharge of the cooling water is through pipe 33 which maybe led out of the boat at any preferred point. I show the outlet adjacent the propeller. i

Any preferred means may be provided for securing or anchoring the gear box 2 within the hull but in the construction as illustrated said gear box is provided with outwardly extending ears 21, whereby said gear box is securely fastened to floor timbers or cross members 22 as more clearly shown in Fig. 3.

Various means can also be provided supporting the motor within the boat hull and tWo such means are shown in Figure 3 wherein struts or stay rods 23 are shown extending from the upper portion of the motor to the hull. of the boat. necessary means, being provided'for securing saidrods to' the motor and to the hull. i

Another and more 'simple means for securing and supporting the motor is by pro vi ding a transverse beam or timber 24 having itsends properly fastened or secured to the sides of the boat, said timberbeing so placed as to permit the motor. to be clamped thereto by the usual clamping means provided on motors of this type. V x

Referring to Figure 4 the drive shaftB is illustrated as a sleeve supporting at its outer end hub 25 of the propeller- Passing transversely through this hub is a rotatable shaft 26 provided with a bevelled gear 2'1". The propeller blades 4 are rigidly secured to the shaft 26 so that upon the rotation thereof the propeller blades will be rotated about their individual axes. Mounted concentrically withinthe hollow propeller shaft 3 is a shaft 28 having secured to its outer end a bevelled gear 29 meshing with the bevelled gear 2?,

of said shaft 32 being constructed with a handle or the like 34 providing one means of rotating the shaft 32 and in turn shaft 28.

\Vith the construction of gear box shown in the present application an outboard motor can be used as an inboard installation without in any way materially altering the outboard motor and its associated mechanism and without in any way interfering with or preventing the subsequent use of said motor as an outboard motor.

Inother words, by merely temporarily removing the lower portion of the motor drive shaft casing together with the propeller a used on these outboard motors, the upper portion of the casing and motor can be conveniently and readily mounted upon the upper face of the gear box described and the shaft of said motor will automatically couple with the stub shafts in the gear box. This simple interchanging of parts makes it possible to use outboard motors on installations where it is desirable to have the motor within the boat as in the types of boat or boat hulls particularly referred to in the foregoing specification, and also as the standard outboard motor upon detachment from the described gear box and the re-mounting of the lower casing with shaft and propeller.

Likewise by my invention various outboard motors put out by the different motor manufacturers can be readily mounted upon the universal gear box I have described above.

With the described arrangements full advantage may be taken of the compactness and lightness of weightof the outboard motor to make advantageous inboard installations and particularly in boats where it has not heretofore been practical to make inboard installations.

Modifications may be made in the arrangement and location of parts within the spirit and scope of my invention, and such modifications are intended to be covered by the appended claims.

What is claimed is:

1. In a motor installation for boats, the combination with a gear mechanism rigidly secured within said boat including a propeller shaft extending through the hull of the boat, of an outboard motor removably mounted adjacent said gear mechanism, a water pump mounted within said boat having connections through the hull of-said boat and circulating cooling water for said motor, and means for connecting the drive shaft of said motor to said gear mechanism.

2. In a motor installation for boats, the combination with a gear mechanism rigidly secured within said boat including a. propeller shaft of the reversible propeller type extending through the hull of the boat, of an outboard motor removably mountedadjacent said gear mechanism, means for'connecting the drive shaft of said motor to said gear mechanism and means within the boat for reversing said propeller.

3. In a motor installation for boats, the combination with a box or casing rigidly secured within said boat, of a gear mechanism within said casing,a propeller shaft having its inner end mounted in said casing and connected to said gearmechanism and its outer end extending through the hull of the boat, means for reversing the propeller, an outboard motor removably mounted on said casing, means for connecting the drive shaft of the motor to said gear mechanism, and means within the boat for actuating the propeller reversing means.

at. In a motor installation for boats, the combination with a box or casing rigidly secured within said boat, of a gear mechanism within said casing, a propeller shaft having its inner end mounted in said casing and connected to said gear mechanism and its outer end extending through the hull of the boat, an outboard motor removably mounted on said casing and means for connecting the drive shaft of the motor to said gear mechanism, said means being interchangeable to accommodate drive shafts of various sizes.

5. A gear box for boatsincluding a gear mechanism and an inboard propeller shaft, means for removably mounting an outboard motor on said gear box and means for coupling the vertical drive shaft of said motor to said gear mechanism, said means being interchangeable to accommodate drive shafts of various size motors.

6. A gear box for boats including agear mechanism and an inboard propeller shaft, and means for coupling a vertical drive shaft to said gear mechanism, said means being removable and interchangeable to accommodate drive shafts or various sizes.

7. A gear box for boats including a gear mechanism and a propeller shaft, a water pump associated with said box, inlet and outlet connections for said pump, and means for coupling a vertical drive shaft to said gear mechanism, the coupling means being inter:

changeable with different motors to be connected with the gear box.

8. A gear box for boats including a gear mechanism havin a drive shaft and operating a propeller s aft, a cover for said box having means for removably mounting a motor thereon, and means coupling the drive shaft and motor, the cover being interchange able with different motors to be mounted on said gear box.

9; A gear box for boats comprising a gear mechanism having a drive shaft and operating a propeller shaft, and a cover for said box having means for reinovaly mounting a motor thereon and means for coupling a motor to said drive shaft, the cover with coupling means being interchangeable to accommodate different motors to be mounted on said gear box. V

10. The combination with an internal combustion engine having a power shaft, of a gear box having mounted therein a gear mechanism,-a drive shaft therefor and a propeller shaft operated thereby, means for coupling the power and drive shafts, and a cover for-said box upon which said engine is removably mounted, said coverbeing removable and. interchangeable with different engines to.be mounted on said gear box.

11. The combination with an internal c'ombustion engine having a power shaft, of a gear box having mounted therein a gear mechanism, a drive shaft therefor and a propeller shaft operated thereby, a cover for said box upon which said engine is removably mounted, and means carried by said cover for coupling the power and drive shafts together, said cover with its coupling means being removable and'interchangeable with different engines to be mounted on said gear box.

In testimony whereof I aflix my signature.

'LORILLARD SPENCER.