US1824213A - Marine motor - Google Patents

Description

s'pt. 22, 1931. H. L. JOHNSON MARINE MOTOR Filed Oct. 12, 1927 4 Sheets-Sheet l INVENTOR. fldf/y Z. JOY/23072 A TTORNE Y.

Sept. 22, 1931. H. JOHNSON MARINE MOTOR Filed Oct.

4 Sheets-Sheet 3 IN VEN TOR.

A TTORNE Y.

Sept. 22, 1931. H. L. JOHNSON 1,824,213

MARINE MOTOR Filed Oct. 12, 1927 4 Sheets-Sheet 4 INVENTOR.

fiafry Z. k/Mmson,

Patented Sept. 22, 1931 UNITED STATES PATENT OFFICE HARRY L. JOHNSON, OI SOUTH BEND, INDIANA, ASSIGNOR- TO- JOHNSON BROTHERS ENGINEERING CORPORATION, OF SOUTH BEND, INDIANA MARINE moron Application filed October 12, 1927.

- the motor will be automatically disconnected from the motor and will pivotally move,

thereby preventing damage to the motor parts.

A further object of my invention is to provide means automatically operable by the pivotal movement of the lower'portion of thepropeller and its shaft for controlling the motor which drives the propeller whereby to prevent racin of the motor.

A further 0 ject is to provide means where.-

by upon starting of the pivotal movement of the lower portion of the motor the ignition system to the drive motor will be broken or rendered inoperative, thereby stopping the motor during the disconnecting operation.

Also to provide means whereby when the pivotal portion of the motor again moves to operative position, the ignition system will be rendered operative.

A further object is to pivotally mount the lower portion'of the propeller drive shaft casing and to provide means whereby said casing can be pivotally moved for directional steering of the craft. Also to provide the pivoted portion of the casing with a gear segment with which a worm gear meshes, and which worm gear is rotated throu h any suitable mechanism of any part of t e boat for steering purposes.

A further object is to provide the pivoted portion of the casing with a shaft rotatably mounted in a hearing structure,-a worm on said shaft, said worm having a clutch element cooperating with a spring pressed clutch element mounted on the shaft, and a rotatable worm'c'ooperating with the worm gear and forming means in connection with operating mechanism for manually swinging the pivot- I ed portion of the motor to inoperative positions for repair and cleaning purposes. The

Serial No. 225,772.

clutch elements form means whereby upon striking of an obstruction by the lower portion of the motor, said elements will be declutched but under ordinary Weight, for instance during manual operation, will remain clutched. V

A further object is to mount the steerin worm on a shaft, which shaft extends throu and into sections of the pivot shaft and 111651- es with the steering segment, and is disposed between the adjacent ends of the pivot shaft, thereby forming a structure wherein the worm and segment are protected from foreign matter and particularly from water.

A further object is to provide the lower end of the motor. drive shaft with a clutch element, which clutch element cooperates with aclutch element carried by the pivoted ortion of the motor as a whole and having riving connection with the propeller.

A further object is to provide a marine.

motor particularly adapted for relatively heavy work and comprisinga stationary drive motor generall of the outboard motor type and having its lower ortion pivotally mounted and provided with clutch engagement with the drive shaft of the stationary motor and forming means whereby when the lower portion of the motor hits an 0bstruction it 'will swing rearwardly and upwardly, and declutch from the motor, thereby allowing and obtaining the advantages of the pivoted outboard motor'in a relatively heavy motor, which could not be advantageously manipulated and pivoted incident to its weight.

A further object is to provide an outboard motor having a pivoted portion and a stationary drive portion normally in clutched relation and means whereby upon striking an obstruction the lower portion of the motor will pivotally move for riding over the obstruction and means for returning said motor portion, which has been pivotally moved, to operative relation to the stationary portion of the motor.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and 100 claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a vertical longitudinal sectional view through the stern of a conventional form of boat, showing the motor. applied thereto and in side elevation.

Figure 2 is a vertical longitudinal sectional view through a portion of the motor on an enlarged scale.

Figure 3 is a view similar to Figure 2, but

' of the boat, however it is to be understood that it may be applied in an manner desired.

The engine 4 is preferab y of the type set forth in Patent No. 1,467,461, and is provided with a supportin base 5,secured withinthe stern by means 0 bolts 6, and extending downwardly from said motor 4 is a drive shaft 7 having a pluralit of verticall disposed ribs 8 forming teet adapted-to e received between the teeth 9 of the clutch member 10 carried by the propeller drive shaft 11 for imparting rotation to the shaft 11, which shaft is provided with a bevelled gear 12, which meshes with a bevelled gear 13 carried by the horizontal propeller shaft 14, on which is mounted a propel er 15, therefore it will be seen that when the clutch element 10 is in clutched relation with the engine drive shaft 7, rotation will be imparted to the propeller 15. The propeller drive shaft 11 is rotat-.

ably mounted within a packed bearing 16 within the tubular casing 17, and which cas-- ing is disposed within the tubular portion 18 of the pivoted casing section 19, which pivoted' section is clamped and rigidly at tached to the alined shaft sections 26 by means of bolts 21, therefore it will be seen that during the pivotal movement of the pivoted casin 19, which carries the lower structure, the s aft sections 20 will'rotate therewith. Disposed within an oil chamber-22 in the upper side o the pivoted casing'li), and secured at 23 on the, tubular casing 17, and also secured thereon by means of a nut 24 is a steering gear segment 25, with which a worm 26 meshes. The worm 26 is carried by a shaft 27 rotatably mounted in bearings 28 of the shaft sections 20, and the outer end of the shaft 27 is preferably provided with a sprocket 29 around which a sprocket chain is adapted to extend, leading to any conventional steering mechanism, located at any particular point within the boat, therefore it will be seen that during a steering operation, the worm 26 will be rotated for moving the steering segment 25 in either direction, consequently rotating the sleeve 17 to which the steering segment 25 is\secured, and the lower casing section 17a carried thereby, thereby imparting a directional movement to either side of the proller for steering purposes. This lower casmg section 17a is detachably connected to the upper casing sleeve 17 by means of bolts easily accessible from the outside for removal, substitution, or repair of the lower or ropeller carrying portion, and the propel e'r drive shaft 11 is also commonly provided with a key and socket releasable connection to facilitate separation of the casing and drivinglparts at this juncture. The up er end of e casing 17 is provided with. r1 I 30, which engage within an annular pack oove 31 in the plate 32, and the upper side og said plate 32 is provided with a pack groove 33, which receives v the annular rib 34 surrounding the engine drive shaft 7 for forming a water tight joint. By providingthe rib 30 and the late 32, it Wlll be seen t at the plate 32 will orm a closure for the u per side of the lubricant chamber 22, there y preventing escape of lubricant, consequent y the steering segment 25 and the worm 26 will operate in oil at all times. v

The present motor is particularly designed as a heavy duty one for use particularly where the power desired requires a relatively heavy structure, which could not be easily tilted as is common with pivoted out-board motors. These pivoted motors nerally swing in a vertical lon itudinal p ane, incident to engagement with the bottom of a stream when the boat gets in shoal water, or hits an obstruction. To permit the pivotal movement of the propeller portion of a relatively heavy high powered motor, the lower structure is adapted to pivot and disconnect from the engine as clearly shown in Figure 3, and during .this pivotal movement the shaft 20 rotates, however it'will be noted that the rotation is a ioo slight one,but said rotation would, incident of the lower structure, the engine shaft 7 and the clutch element 9 are disengaged, therefore it will be seen that the propeller worm 37 below one of the shaft sections 20,

' and which worm meshes with a worm gear tion to the clutch 39 by means of an expansion spring 42, which is interposed between the clutch element 40 and the nut 42, car ried by the outer end of the shaft 20, therefore it will be seen that the worm gear 38 is normally in clutched relation through the clutch element 40 with the shaft 20, and the operator, when he desires to pivotally move the lower structure of the device for cleaningor repair purposes or for returning the lower structure to normally clutched relation, will only have to grasp the crank 43 and rotate the same, consequently the worm 37 will rotate, or partially rotate the worm gear 38, and as said worm gear'has a clutched connection with the shaft 20,'the pivoted casing 19 will be pivotally moved as it is locked to the pivoted shaft sections 20 by means of the bolts 12, and the lower motor structure will be swung upwardly or downwardly according to the direction of rotation of the crank 43. This lower motor structure is yieldingly held in driving position by the 3 clutch elements 34, 40. 42 and 42a, and its yielding resistance to tilting may be varied by adjusting the tension of the spring 42a. When the pivoted ortion of the motor engages the bottom 0 a stream or an obstruction, the rearward forces on the lower end of the motor will pivotally move said lower portion, and the shaft sect-ions 20, and as the worm 37 is in engagement with the worm gear 38, it is obvious that the clutch element 40, incident to the bevelled engagement with the clutch element 39 will ride out bf the clutch element 39 against the action of the spring 42, thereby allowing free rearward pivotal movement of the lower motor structure. Up-

' on downward pivotal movement of the lowthrough the medium of a leaf switch 45, which has a tendency to spring downwardly for breakingthe contact at 46. Slidably mounted in a bearing sleeve 47 below the s ring switch is a shaft 48, which is prefera ly provided with a head49 having a tip 50 on its upper end formed of insulation, and which tip engages the under side of the leaf switch 47. The lower end of the shaft 48 extends below the lower end of the sleeve 47, and is in the path of the stop pin 51 carried by the pivoted casing 19, therefore it will be seen that immed ately upon the starting of the downward and rearward pivoted movement of the lower motor structure the stop pin 51 will move downwardly, thereby allowing downward movement of the shaft 48 under the influence of the leaf spring 45, thereby breaking the ignition circuit at 46, consequently stopping the motor or engine 5 and preventing racing thereof until the lower pivoted motor. structure is again moved upwardly to operative-positiom'and at which time the pin 51 will engage the shaft 48 and force the leaf spring switch 45 upwardly, thereby againclosing the igni' tion circuit at .46.'"It will be noted that by stopping the engine, thedeclutching operation is rendered easy, and when the motor again swings to operative position the shaft 7 will be stopped, and the parts will easily interengage without stripping the teeth in the clutch element 9, and on the shaft 7.

- The engine cooling system is preferably of the type whereby water is forced by the-propeller blades through an intake port 52, which forces or conducts water to a water collecting chamber 53, from which the water passes through a port 54' to the flexible pipe 55, the upper end of which is connected at 56 within a port 57,'which extends through the engine base 5, and from which port 57, the water passes over a pipe 58'to the engine 5. The discharge of waterfrom the engine jacket may be in any suitable manner for instance through the pipe 59, howe er applicant does not limit himself to any particular engine cooling system. From the above it will be seen that a. marine engine is provided, of the internal combustion type, wherein upon hitting of an obstruction or the bottom of a stream by the lower end of the structure, the pivoted lower structure will be pivoted rearwardly, thereby preventing damage to the device, and at the same time the engine is automatically stopped and the helmsman is automa icall-y signalled through the partial rotation of thesprocket wheel 29 that there has been a dis connection, and the lower propeller structure has engaged the bottom of the stream or an obstruction, thereby immediatelv warning him so that he can take the proper steps under the circumstances. It will also be seen that immediately upon the movement of the pivoted lower structure to clutched relation with the engine, the ignition system will be automatically closed for allowing operation of the device for propelling the boat. It will also be seen that by pivoting the lower structure, heavy duty motors may be provided, which would be too heavy when constructed as ordinary pivoted out-board motors, butall of the advantages of a pivoted out-board motor are obtained.

The invention having been set forth is claimed as new and useful is 1. A marine engine comprising a motor, a base carried by said motor, a hinged section carried by said base, a propeller drive shaft in said hinged section, a propeller carried by said hinged section and driven by said drive shaft. a clutch connection between the motor and the drive shaft, the propeller carrying portion of the hinged section being pivotally mounted, a steering segment carried by said propeller carrying portion, a worm meshing with said segment and means for rotating said worm.

2. The combination with a marine motor comprising a stationary portion and a hinged propeller carrying portion having driving connections therebetween, an ignition circuit for said motor, said ignition circuit being controlled by the hinged section whereby upon movement thereof to disconnected position, said ignition circuit will be broken and means whereby upon movement of the hinged What section to connected position said ignition eir-' cuit will be closed.

3. The combination with a marine engine comprising a stationary motor, a hinged propeller carrying section beneath said motor, interengaging clutch members carried by the 40 motor and the hinged section and forming propeller driving connections therebetween, an ignition circuifi'saidfignition circuit being controlled by the hinged section, whereby upon disconnection thereof with the motor said ignition circuit will be broken and upon driving connections between the hinged section and the motor said ignition circuit will be closed.

4. The combination with a marine engine comprising a stationary motor, a hinged pro-- peller carrying section driving connections between said sections, of a pivot shaft for said hinged section, said pivot shaft being rotatable with said hinged section, a worm gear carried by said shaft and rotatable thereon, a clutch element carried by said worm, a clutch element slidably mounted on the shaft, spring means for normally forcing said clutch elements together, a worm meshing with said 50 worm gear and means for rotating said worm. 5. The combination with a marine engine comprising a stationary motor section, a hinged propeller carrying section, detachable driving connections between said sections for the propeller, of a pivoted shaft carried by said hinged section and rotatable in bearings, a worm gear carried by said shaft and rotatable thereon, clutch connections between the Worm gear and the shaft and an operating worm engaging said worm gear and forming means for partially rotating the shaft through the medium of the worm gearand its clutch connections with the shaft.

6. The combination with a marine motor comprising a stationary motor section and a hinged propeller carrying section, said ropeller section having a pivot shaft, said s aft being rotatably mounted in bearings, manual means for rotating said shaft for pivotally moving the hinged section and clutch connections between the manual means and the shaft whereby the hinged section can hingedly move independent of the manual means.

7. The combination with a marine engine comprising a stationary motor and a hinged section, said hinged section having a shaft rotatably mounted in bearings, manual means for rotating said shaft and clutch connections between the manual means and the shaft whereby said hinged section may hingedly move independent of the manual means.

Y 8. The combination with a marine engine comprising a. stationary motor and a hinged propeller carrying section, said hinged secr tion having a shaft rotatably mounted in bearings, manual means for rotating said shaft, clutch connections between the manual means and the shaft, whereby said hinged section may move independent of the manual means, a steering sector within the hinged section, a worm meshing with said sector, a shaft rotatably mounted in the first mentioned shaft and carried by the worm, and

steering connections to said worm carried shaft.

9. The combination'with a marine motor comprising a stationary motor, a bin ed propeller carryin section between sai motor, a ortion of t e propeller carrying section belng pivotally mounted for steerm purposes, a steering se ent carried by t e pivoted portion of the 'nged section, a steering worm meshin with said segment, said worm being carried y a shaft on the hinging point of the hinged section and a steering connection carried bysaid shaft.

10. The combination with an outboard marine engine comprising a stationary motor and a hinged propeller carrying section between said motor and having sli clutch connections therewith, the propel er carrying portion of the hinged section being pivotally mounted, a shaft carried by said hinged section and rotatable in bearings, said shaft being formed in sections having adjacent ends, a worm between the adjacent ends of said shaft sections, a shaft carried b said worm and rotatably mounted within t e shaft sections, steering connections carried by said worm carrying shaft and a gear segment carried by the pivoted portion of the hinged section and meshing with the worm.

11. The combination with a boat, a marine engine, a steering mechanism, said marine engine having'a hinged propeller carrying portion, of means whereby upon hinged movement of the propeller carrying portion said movement will be indicated through the steering mechanism.

12. A marine motor adapted to be mounted on a water craft and having a substantially vertically depending drive shaft a propeller shaft driven therefrom at its lower end, a propeller on said propeller shaft and pivotal means rmitting the swinging of a portion of sald vertically disposed drive,

shaft in avertical plane for raising and lowering the propeller to avoid heavy obstructions and the like located in the water.

13. In combination with a water vehicle, a marine motor mounted thereon and having a substantially vertically dependingl drive shaft, a gear casing havin a portion epending below the bottom 0 the water vehicle,

sald gear casin carrying a part of the vertical drive sha and also carrying a propeller shaft a propeller and geared connections from said propeller shaft to the vertically depending drive shaft of the motor, and pivotal means for swingly mounting said gear casing, o

casing so as to permit it to move in a substantially vertical plane upwardly to raise the propeller and gear casing substantially above the plane of the bottom of the motor vehicle.

14. A marine motor provided with an ex tended drive shaft, a casing surrounding said drive shaft and adapted to depend into the water, said casing carrying a portion of the vertical drive shaft and carrying an angularly disposed propeller shaft geared to the drive shaft, a propeller mounted on said and means forming a hinged connection r the lower portion of the casing to permit it to swing relatively to the motor.

15. A marine motor having a vertically dis osed drive shaft rovide .with a propeller connected to its ower end, and pivotal means permitting the swinging of the lower portion of said vertically depending drive shaft'and said propeller relatively to the upper portion of said shaft.

16. The combination with a water vehicle, a marine motor mounted thereon and having a substantially vertically depending drive shaft provided with a bevel gear at its lower end, a propeller shaft rigidly -mounted in fixed relation at substantially right an les to said drive shaft and having another evel gear meshing with said first mentioned bevel gear, a propeller on said propeller shaft, and means for permitting said propeller shaft and propeller and a portion of said vertically disposed drive shaft to swing upwardly through the water relatively to another portion of said verticall disposed drive shaft whereby to permit sai propeller having a vertically dependin drive shaft,

a gear casing mounted in sai recess of the boat and carrying an extension drive shaft clutch connections on said drive shaft, a propeller shaft mounted in said casing and geared to the lower portion of the extension shaft, a propeller on said propeller shaft, said casing and said propeller extending below the bottom portion of the boat at the recess, and means forming a hinged connection for said casing whereby to permit said casing and the propeller to swing upwardly in said recess substantially above the bottom thereof and relatively to the motor so as to permit the propeller and the casing to avoidobstructions in the water. 18. A water vehicle provided with a recessed stern, a marine motor mounted on the stern of the vehicle and havinga vertically extending shaft projecting into said recess, a casing carrying an extension shaft normally in line with said engine shaft, clutch connections between the adjacent ends of two such shafts for driving the extension shaft, a propeller mounted on said support and driven by said extension shaft, and means permitting the raising and lowering of said casing and propeller in the recess of said vehicle and relatively to the motor whereby to lift said propeller and said casing within the bottom plane of the boat whereby to permit said propeller and its mounting to avoid obstructions in the water.

19. A device of the class described oomprising in combination, a marine motor having a drive shaft, formed with a clutch con-y nection, an extension shaft carr ing a cooperating clutch connection, a evel ear on the lower end of said extension sha t, a pro ller shaft having a second bevel gear mes ing with said first mentioned bevel gear.

and being rigidly mounted with respect to said extension shaft and at right angles thereto, a propeller on-said propeller shaft and means forming a pivotal mountin for said extension shaft relative to said rive shaft wherebyto permit said extension shaft and propeller to swing relative to said drive shaft and to rmit their disengagement.

20. A marine vmotorhaving a vertically depending drive shaft formed of relatively movable sections normally in a common line of driving engagement, a propeller operatively connected to the lower-most section and means permitting the automatic disengagement of said sections and the upward movement of the lower section whereby to swing the propeller driven thereby in an upward direction and relative to the motor itlower pro eller carrying propeller driven thereby an self. a

21. In combination with a water vehicle, a marine engine, a propeller and steering .mechanism therefor, said marineengine having a propeller carrying portion shiftable relatively thereto and devices associated with said engine and steering mechanism whereby said steering mechanism is actuated to indicate the shifting of the propeller carrying portion.

22. The combination with a water vehicle,

a marine engine therefor, said marine engine having a separable vertical shaft with ortion and a portion tiltable relatively thereto about a transverse pivot, and devices associated with said propeller carrying portion and having a connection through the pivot for indicating when the carrying portion is tilted" 23. The" combination with a' marine mo-' tor, a propeller carrying section driven thereby and shiftable'relatively to said motor, drive connections between said motor and propeller carrying section, and means for rendering the motor shaft and the propeller shaft inoperative upon movement of the propeller carrying section relative to the .e marine motor.

a pivotal mounting 24. The combination with a marine motor including a drive shaft, a propeller car: rying section having a driven shaft and adapted to be shifted relative to said motor .5 drive shaft, driving connections between said shafts adapted to be clutched and unclutched, and means operable on the relative movement of said shafts for stopping the rotation'of said motor drive shaft.

25. Apropulsiondeviceforwatercrafthaving a motor including a stationary de ending drive shaft terminating in a clutc an extension shaft normally aligned with said drive shaft and havin an associated clutch, or said driven shaft whereby said drivenshaft may swing in a vertical lane with respect to said drive shaft, said extension having a lower bevel gear, a propeler shaft disposed at a fixed angle to,. the extension shaft and having a second, bevel gear meshing with the bevel gear on said extension shaft, and a propeller carried by said propeller shaft.

26. In a device of the class described, the

':-' combination of a marine motor and having a depending drive shaft termmatmg in a clutch, a support pivotally mounted relathe carrying 27. In a device of the class described, the combination of a support, a marine motor mounted thereon and having a depending drive shaft terminating in a clutch, a second support pivotally mounted on said first support on a horizontal axis disposed substantially adjacent the clutch end of the drive shaft, said second support including a tubular casing, a driven shaft rotatably mounted in said tubular basin and carrying a propeller oh its lower en said driven shaft having a cooperative clutch on its upper end, said tubular casing including a packed bearingfor said driven shaft and the upper portion of said tubular casing, and the lower portion of said first support having cooperating surfaces forming a.sub stantial seal for said packed bearing in said tubular casing.

28. In a device of the class described, the combination of a support, a marine motor mounted thereon and having a depending shaft terminating in a clutch, said su port carrying aligned and spaced a art sha t sections, a tubular casing pivotal y mounted on said shaft sections, a driven shaft having bearings in said tubular casing, said driven shaft having a cooperative clutch on its up-- per end and a propeller on its lower end.

29. In a device of the class described, the

combination of a support, a marine motor mounted thereon and having a depending shaft terminating in a clutch, saidsupport carrying aligned and spaced apart shaft sections, a shaft mounted in said sections, a tubular casing pivotally mounted on said shaft sections, a driven ,haft having hearings in said tubular casing, said driven shaft having a cooperative clutch driven from its upper end and a pro eller on its lower end, a gear element on said tubular casing and a gear on the shaft mounted in said aligned shaft sections, said latter gear meshing with the gear on the tubular casing, and operative connection from said shaft to the steering mechanism.

30. In a device of the class described, the combination of a support, a marine motor mounted thereon and having a depending shaft terminating in a clutch, said su port carrying aligned and spaced apart sha sections, a shaft mounted in said sections, a tubular casing pivotally mounted on said shaft sections, a driven shaft having bearings in said tubular casing, said driven shaft having a cooperative clutch on its upper end and having a propeller operatively connected to its lower end, a gear element on said tubular casing and a gear on the shaft mounted in said aligned shaft sections, said latter gearmeshing with the gear on the tubular casing,

and manual operable means for rotating said.

shaft for shifting the tubular casing about the aligned shaft sections.

31. In combination with a marine vehicle,

normall a support thereon, a motor mounted on said support and having a depending driving shaft formed with a clutch, a second support shiftably mounted on said first support, said second support being formed as a tubular casing adapted to be normally in alignment with said drivin shaft and having a pivotal axis extending orizontally on said first support adjacent the clutch of said driving shaft, the walls of the tubular casing being formed at its upper portions to provide a hollow chamber, a second shaft having hearings in said tubular casing, a gear element mounted on the upper end of said tubular casing and housed in the walls forming said hollow chamber, a clutch on the upper end of said second shaft adapted to mesh with the clutch operatively connected to the driving shaft, a propeller on the lower end of the second shaft, a worm on the horizontal axis of said first support, said worm meshing with the gear element on said tubular casing, said chamber in which said gear element is mounted being constructed and arranged to contain a quantity of oil.

32. ;ln combination with a marine vehicle, a support thereon, a motor mounted thereon and provided with a depending driven shaft terminating in a clutch, a cross shaft on said support, a gear on said cross shaft, steering mechanism on said vehicle operatively connected with said cross shaft, a second shaft in alignment with the depending motor s aft, a support for the second shaft, a propeller shaft on said support and operatively driven from the second shaft, and a propeller on said propeller shaft, a gear element on said second shaft support meshing with said gear on the cross shaft,said support being pivotally mounted on said cross shaft, whereby said second shaft may be moved angularly by the operation of said steering mechanism and whereby said second shaft may swing bodily with respect to said power shaft.

33. In a marine motor, the combination of a prime mover having a driving shaft, a normally aligned second shaft, a propeller shaft, a clutch driving connection between said shafts, a propeller mounted on said propeller shaft, a support for said second and propeller shafts, a fourth shaft forming a'pivotal bearing for said driving and second support, a geared connection between said fourth shaft and said propeller shaft support, means for rotating said fourth shaft for angularly turning the propeller shaft support and means for shifting said propeller shaft support pivotally about said shaft.

34. In a device of the class described, the combination of a marine motor having a lower support formed as a plate like elementhaving an annular rib, said motor having 9. depending shaft projecting therethrough and provided with a clutch part, a second support carrying an extension of said shaft formed with a cooperative clutch part, said second support being 'shiftably mounted with I respect to said first support, bearings for said shaft in said second support, said second support embodying a sleeve formed with an annular groove adapted to receive the annular rib of the plate of the first support, said packing groove and ribs concentrically surrounding the axis of said shaft whereby to provide a water tight joint when said supports are in closed position.

35. In a device of the class described the combination of an upper support, a marine motor mounted thereon, and provided witha drive shaft depending through the lower portion of said upper support, a second support pivoted to said first support ard hav ing its upper portion forming a lubricant containing reservoir, said second support being tubular in formation, a driven shaft in said tubular portion and projecting to the top of said second support, said drive and driven shafts having connectable clutch portions, gearing in said lubricant chamber for rotating said tubular support on its axis, the adjacent faces of said upper and lower supports being provided with sealing means disposed concentrically about said shaft for forming a water tight connection between said supports when closed and sealing the lubricant containing chamber.

36. In combination with a marine vehicle, a prime mover mounted thereon having a depending shaftcarrying a propeller, means on said shaft for permitting the propeller carrying portion to shift automatically rearwardly when said propeller strikes an obstruct-ion, means operated by the shifting movement of said propeller for altering the condition of one of the engine controls, and vmeans for returning the propeller carrying portion of the shaft to normal position when desired.

37. In combination with a marine vehicle, a prime mover. mounted thereon having a vertically depending shaft the lower of which is connected to a propeller, said shaft having means associated therewith permitting the lower portion of the shaft automatically to shift rearwardly when struck by an obstruction and to be disconnected from the engine, and manual means for reconnecting it to the engine.

38. In combination with a marine motor having a depending driving shaft formed with a clutch, a second shaft normally in alignment therewith and having an associated clutch, a supportfor said second shaft, bearing elements on which said second shaft support is pivotally mounted, a gear on said bearing elements, a third shaft having a gear meshing with the gear on said bearing elements, said gear on said bearing elements having a releasing clutch connecting it to said bearing elements and a propeller shaft operatively connected to said second shaft. peller strikes an obstruction, and means for 39. In combination with a marine motor automatically cutting out the ignition circuit having a depending shaft, a second shaft, when said propeller shifts for preventing the means extending transversely to the motor engine from racing, manual operable means Lea-131a shaft formin a pivotal bearing and includfor returning said propeller to normal driv ing a cross 5 aft, a support for the second ing position, and automatic means for reshaft pivotally mounted on said cross shaft storing the engine circuit:

a propeller on said support and operatively\ 45. In combination with a marine vehicle, connected to said second shaft, the lower porgas engine thereon having a water circution of'said motor shaft having a clutch and lating system and including a driving shaft, the upper portion of said second shaft having a propeller carrying shaft mounted on said an associated clutch, whereby when said provehicle so as to shift bodily with res ect to peller strikes an obstruction said second shaft said driving shaft when struck by an o strucsupport will automatically shift about said tion, and means operated by said propeller cross shaft, a third shaft having a geared for forcing water throu h the circulating-- coniiection with said cross shaft for manuall system of the engine, said means being conturning the same to restore said second sha t structed and arranged to permit the shlfting support, said geared connection being conof said propeller shaft without interfering structecl' and arrangedto yield during the with the circulation of the water. automatic shifting of said second shaft support. a gas engine mounted thereon havin a water 40. A marine motor havin a depend-in circulating system'and a drive sha t, a prodrive shaft, a propeller, devices associate peller carrying shaft mounted to have bodily with said motor and propeller for permitshifting movement with respect to said en- 46. In combination with a marine vehicle,

tin said propeller automatically to swing gine driving shaft, a flexible conduit havingb0 ily relatively to said motor when said a mouth disposed adjacent the propeller propeller strikes an obstruction, and manwhereby said propeller forces water through ually operable devices constructed and arsaid conduit, said flexible conduit connecting ranged for returning said propeller to norwith the water circulating system of the enmal operative position. gme.

41. A marine motor having a depending 47. The combination with a motor having drive shaft, a propeller, devices associate a relatively shiftable two-part driving shaft with said motor and propeller for permit a propeller shaft fixed relatively to one of tin said propeller automatically to swing said parts of the drivin shaft and carrying bofily relatively to said motor when said proa propeller, of a pivota ly mounted support peller strikes an obstruction, and manually for said propeller shaft and one art 0 said operable devices constructed and arranged driving sha and means actua 1e through for returning said ropeller to normal operthe plvot of the support for bodily swinging ative position, said manually operable dethe support 1n :1 vertical plane and for movvices including yieldingmeans for permiting the support in a horizontal plane for ting the automatic shifting movement of said Steering movement of the propeller. ll 48. The combination wlth a motor having 42. In combination with a marine vehicle, a relat1vely shiftable two-part (propeller a motor thereon, a propeller and devices asdr1v1n gshaft,of a pivotally mounte sup ort sociated with said propeller and motor for for saldfpropeller and one part of said rivcausing the propeller automatically to shift mg sha t, said support being free to tilt bodily with respect tosaid motor when said upon strlkmg an obstruction, and means actpropeller strikes an obstruction, and auto- 1 g hr ugh the pivot of the support for matlc devices operated by the shifting movereturmng the support to normal position. ment of said propeller for altering the operv Th mblnatl u with a motor having ation of the motor. v a relatively shiftable two-part driving shaft, 43. The combination with a marine vehicle, a propeller operatively connected thereto, of a motor, a propeller and devices associated 8 plvotally moun ed s pport'for said ropelwith the pro ller and-motor for automati- 161 and one part ofsald drlvmg sha t, said call permitting the propeller to shift bodily supp rt elng free to tilt upon striking an wit respect to said motor when said propelc n, m ns a ing through thepivot ler strikes an obstruction, and means for of the upp r for returning the support to automatically cutting out the ignition cirnormal position, and associated means car cuit when said ropeller shifts for preventrled y mud plvot and pp operable for ing the engine rom'racing.

44. In combination with a marine vehicle, steering movement of the propeller.

a motor, a propeller and devices associated 50. In a device of the class described, the

with the propeller and motor for automaticombination with a marine motor having a moving the support in a horizontal plane for cally permitting the propeller to shift bodily water jacket and provided with a vertically with respect to said motor'when said prodepending drive shaft, a hollow casing carrying an extension shaft, there being clutch connections between theadjacent ends of said two shafts, a propeller operatively connected to the lower end of said extension shaft, means for pivotally mounting said hollow casing so as to permit the propeller to tilt relatively to the motor, and a water inlet passage on said hollow casing disposed beneath the normal water level and having a passage upwardly through a portion of said casing, and means connecting the upper portion of said passage with the water jacket of the engine, said connecting means permitting the free swinging movement of said casing durin tilting. I

51. n a device of the class described, the combination of a prime mover having a vertically depending shaft, a support carrying a normally aligned extension shaft and carrying a propeller driven thereby, said shafts having engageable clutch portions, a pivotal mounting for said extension shaft support whereby to permit the same to swing .relatively to the first mentioned shaft, and means for turning said su port and propeller about the extenslon sha ts as an axis, said means including disengageable parts lying substantially in said pivotal axis.

52. In a device of the class described, the combination of a prime mover having a vertically depending drive shaft formed with a clutch member, a normally aligned extension drive shaft formed with an associated clutch member and a support for said extension shaft, a propeller carried b said support and driven by said extension s aft, substantially horizontally disposed means forming a pivotal axis for permitting the propeller carrying support and extension shaft to swing in a vertical plane to en age and disengage said clutches, and means or turning said extension shaft and propeller about the extension shaft as an axis, said means including a gear arrangement on said horizontally disposed means, another gear element on said support, said gear means being engageable durin the pivotal movement of said support.

53. n a device of the class described, the combination of a prime mover having a drive shaft, and and an extension shaft normally in alignment therewith, a support carrying said extension shaft and carrying a pro eller driven by said shaft, means for shi tably mounting said support whereby to permit said propeller to shift relatively to said prime mover, means for turning said support and propeller about the extension shaft as an axis for steering, and means constructed and arranged for disengaging said extension shaft from said drive shaft when said extension shaft and support and propeller are shifted relatively to said prime mover.

54. A prime mover having a vertically depending drive shaft, a support for a portion of said drive shaft, a propeller shaft carried by said support and driven from said drive shaft propeller on said propeller shaft,

-means for shiftin said propeller and supwhen said propeller and support are shifted.

55. A propulsion device adapted to be mounted on water vehicles comprising a water jacketed motor having a substantially" vertically depending drive shaft, an extension shaft therefor normally in line with saiddrive shaft, and normally coupled. to said drive shaft, a lower unit associated with said extension shaft and carrying a propeller shaft geared to the lower end of the extension shaft, and a propeller mounted on said propeller shaft, said lower unit comprising an enclosing casing and means permitting the upward tilting of said lower casing with respect to the engine drive shaft to avoid obstructions, said lower casing having a water inlet disposed below normal water level, said water inlet communicating with a water passage formed in the lower casing and connected with the water jacket of the engine, said water connection being constructed and ar-.

ranged to permit the upward tilting movement of said lower unit.

56.-A propulsion device for water craft comprising in combination, a water jacketed motor adapted to be mounted on said water craft and having a substantially vertically depending drive shaft, a support surroundin said drive shaft, an extension shaft mounted in said support, means normally coupling said. extension shaft to said drive shaft, said support terminating in a propeller carrying casing enclosing the extension shaft, a propeller shaft geared to the extension shaft and enclosed in said casing, a propeller on said shaft, means for turning the propeller carrying casing about the motor shaft as an axis for steering, and means permitting the upward tilting of said propeller carrying casing relative to said motor to avoid obstructions, said propeller carrying casingvhaving a water inlet disposed below normal water level and connecting with an internal passage in said propeller casing, said: internal passage in turn connecting withthe water jacket of the engine, said connections being constructed andarranged to permit the turning of said propeller carrying c for steering and the upward swinging of propeller carrying casing '*for the tilting ;12

movement.

57. In combination with a water vehicle provided with a recess in its stern, said recess being open at its bottom and being open at its rear, of a gas engine stationarily mounted on said craft, said motor having a drive shaft 7 v eo depending downwardly into said recess, a support swingably connected to said motor and depending downwardly in said recess, said support including a propeller carrying lower unit projecting normally below the bottom of the craft adjacent said recess, said support carrying an extension shaft aligned with the motor shaft, said motor shaft and aligned shaft having disengagable clutch portions, means for turning said propeller carrying /casi ng about the drive shaft as an axis for steering and means permitting the tilting of said propeller carrying casing from a position normally pro ect1ng downwardly through the open bottom of said recess to a osition wherein said propeller carrying casmg swings u pwardly in a vertical plane through the rearward opening of said recess whereby to permit thepropeller and -the casing to avoid obstructions. 58. A marine motor havin la vertical drive shaft formed of u per an lower sections, means formiiig a isengageable' clutch,con-

- nection between said sections, and a hinged connection between the up er and lower drive ith water li j k t a propeller shaft sections whereby sai lower section may swing upwardly. I

59. A marine engine com ary motor, a hinged prope her car ing section, a vertical propeller dllVlllg s aft carried by said section, and a clutch connection rising a stationpeller and a'vertical drivingshaft therefor carried by the support, and a clutch element at the upper end of thedriving shaft to engage the engine drive shaft clutch element when the driving shaft is in vertical position.

64. The combination with a boat, of an engine mounted therein, apropeller and a normally vertical depending drive shaft therefor, means for mounting the propeller and shaft to tilt rearwardly when engaged by an obstruction and to disconnect the shaft from the engine, and manual means for reconnecting it to the engine.

65. A marine motor havin a relatively shiftable two part driving sha t, a propeller operatively connected thereto, a pivotally mounted support for the propeller and one" part of the drivingshaft, said support being free to tilt upon striking an obstruction, and means acting through the pivot of the supportoperable'to move the support for steer- 'ing.

66. 1A marine motor comprising an engine ing casing pivote to tilt rearwardly with respect to the engine, means forming a separa-- ble driving shaft connection between -the parts, and for the propeller awater inlet passage in the casing to receive cooling water when the propeller is drivenby the engine,

between the motor and said shaft to allow the d means i d d t f th i t l shaft to tilt upwardly with respect to the.

motor. V

60. The combination with a boat and a stationary engine mounted in the stern of a proller drive therefor including a vertical shaft, a clutch connection between theehg ne and shaft, and means forming a pivoting nection for connecting the inlet passage with the water jacket. 7

67. A marine motor having a substantially vertically dependin drive shaft, a casing housing a ortion 0 said drive shaft, a promounting for the propeller drive and Shaf shaft, a-propeller on the end of said propeller ct to the for tilting them upwardly with res ttorn of connected the latter section, and means to permit the zmtqunatic disengagement of the 7 sections and the ward tilting movement of the latter section faadgiz to themotor itself. 62. The combination ith a boat, of a stationary engine therefore having a shaft portion with a clutch at the end,a a connected vertical propeller having a clutch to engage the engine shaft clutch, and a pivotal mountingfor the propeller drivingshaft whereby said shaft may swing in a vertical plane with respect to the engine shaft; 1 7. "l

63. The combination with a boat, of a marine motor having an engine'with .a stationary mounting in the boat and a drive shaft section terminating in a clutch element, a sup port pivotally mounted to swing relatively to IIVlllg shaft shaft, andpivotal means permitting said casing to swing bodily with respect to the motor. 68. A marine motor having a power head,

a propeller unit therefor having a hinged connection adapting it to tilt, means for mana hinged propeller unit'hinged thereto, a sepa- 1 rable driving connection between the head and the unit, and means for enclosing the gropeller and upper end of the propeller unit against the eiltrance of water. r p I 70.. A marine motor having a combination engine power head, a propeller unit hinged thereto, and an ignition circuit for the engine having a switch controlled by the hinged movement of the propeller unit.

71. A marine motor having a water cooled engine, a propeller unit therefor having a hinged and rotatable driving connection with the engine, and water circulating means for the engine from the unit independent of said 65 said shaft section on a hofi'zontal axis, a proconnection.

means for conveying cooling water betweenthe propeller unit and the engine.

73. A marine motor having a power head, a propeller unit hinged thereto, cooperating driving arts in the head and unit, and a packing oint between the adjacent faces of the head and unit.

74; A marine motor comprising relatively stationary and movable parts joined by a hinged connection, means for adjusting the parts in any relative hinged, position, and a clutch mechanism to release said means upon impact.

75. A vertically depending drive shaft, a hollow casing surrounding said drive shaft and turnable relatively thereto, a propeller shaft mounted in said casing and maintained in rigidrelation to the lower portion of said a drixeshaft, driving means between said drive shaft and propeller shaft, a propeller on said propeller shaft, and pivotal means for rmitting said drive shaft to swing relativel to the motor in avertical plane substantially arallel to the longitudinal axis of a vessel in which the motor is mounted, and means for turning said casing about the vertically disposed drive shafts as an axis.

76. The combination with a boat, of a marine motor having a fixed mounting therein and a vertical propeller drive shaft at the stern, and means for mounting the shaft to tilt upwardly with respect to the motor in a vertical plane disposed substantially in a fore and aft line of the boat.

7 7. A marine motor having a substantially vertically depending drive shaft, a vertically extending housing enclosing a portion of said, drive shaft and turnable axially about the drive shaft for steering, a propeller shaft mounted within the lower portion of said casing, and geared to said drive shaft, a pro peller on the end of said propeller shaft, and pivotal means permitting said casing to swing with respect to the motor bodily upwardly in a plane substantially fore and aft with respect to a boat in which the motor is mounted.

- 78. A'marine motor having a drive shaft, a vertical extension shaft and a clutch connection therebetween; a" propeller operated 79. The combination with a boat, of a stationary marine engine, a vertically disposed driving shaft, a propeller shaft and a propeller connected thereto, a separable clutch connection between the engine and said driving shaft, and means forming a pivotal marine motor having a substantially stantially parallel to a fore an mounting for said driving shaft and said propeller shaft to tilt them upwardly and rearwardly in a plane substantially parallel to the longitudinal axis of the boat to swing the propeller free from obstructions at the bottom of the boat.

80. A marine motor having a ower head, a vertical propeller unit having a hinged connection therewith, and a clutchmechanism' in the hinged connection adapting the propeller unit to swing rearwardly in a vertical fore and aft plane.

81. The combination with a boatanda marine motor having a stationary power head mounted in the boat, and a vertically disposed propeller unit hinged to the head and tiltable upwardly and rearwardly about its upper end.

82. The combination with a boat and a marine motor having a stationary power head mounted in the boat, and a vertically disposed propeller unit hinged to the power head to swing in a fore and aft plane and having a portion rotatable for steering.

83. The combination with a boat and a marine motor having a stationary ower head mounted in the boat, and a vertica ly dis osed propeller unit having a connection wit the power head for tilting in a vertical lane subaft line of the boat and rotatable for steering.

84. A marine motor havin a drive shaft, a vertical extension shaft an a clutch connection therebetween; a propeller operated by the extension shaft; means formin a pivotal mounting for said extension shaft to permit the extension shaft and the ropeller to swin relative to the drive sha t and to permit disengagement of the clutch connec-- tion; and means for yieldingly holding the said clutch normally in driving relation.

85. The combination with a boat and a marine motor having a stationary power head mounted in the boat, a vertically disposed propeller unit hinged to the head and tiltable upwardly and rearwardly about its up per end, and means for providing yielding resistance to the tilting movement of the unit.

7 86. The combination with a boat and a marine motor having a stationary power head niounted in the boat, a vertically disposed propeller unit hinged to the power head to swing in a fore and aft plane and having a portion rotatable for steering, and geared means in connection with said rotatable portion for operating it in steering.

In testimony whereof I afiix my signature.

HARRY L. JOHNSON.

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