US1479025A - Marine motor - Google Patents

Description

A. J. GAULLE ET AL MARINE MOTOR Filed Oct. ll. 1922 2 Sheets-Sheet l mmoe .Jam 11 A. J. CAILLE ET AL MARINE MOTOR an improved mountin Patented dan. il, i224,

UNT@ STT@ AEE d. @MILLE THEDOBE L. SME'JLH, 0F BIETET, MKHKGAN.

Minn moron.

Application led October 11, 1922. Serial No. 598,794.

To all `Iwhom t may concern.'

Be it known that we, ARTHUR J. CAIL'Ln and 'liHnoDoRE L. SMITH, citizens of the United States, residing at Detroit, in the county of Wayne and State of Michigan,

have invented a certain new 4and useful llmprovement in Marine Motors,'oi which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

Our invention relates to marine motors and more particularly to marine motors of the so-called outboard or portable type for small craft-canoes, rowboats and the like.

Thechief object of our invention is the provision of a device of this sort that may be vconveniently mounted to swing in horizontal and vertical planes for steering the craft, clearing obstructions and beaching or land- 1n gAnother object is the provision of a simplitied and improved construction and assembl .f

5A further object is the provision of a compact device having a low center of gravity, yet conveniently accessible and not subject tothe action of the water.

A still further object is to minimize the shock and lines of vibration in such an equipment.

A more specific object is the provision of for the device.

Another more speci c object is the provision of an improved water circulating pump.

Another specific object is the provision of an improved ignition circuit breaker for the'motor.

A still further specific object is the provision of an improved adjustment for adjusting the inclination of the motor and holding the same in adjusted position.

A still further specific object is the' provision of a steering handle for steering the 'craft, raising and lowering the motor, controlling the circuit breaker and completely interrupting `the ignition circuit when so desired. I

Further objects and advantages will appear from the following detailed description and the claims taken with an inspection of the accompanying drawings in'which:

Fig. 1 is a side elevational view of an embodiment of the invention;

Fig. 2 is an inner end view of the same; Fig. 3 is an enlarged vertical axial section throu h the pump mechanism at the outer \end o the propeller shaft;

Fig. 4 is a longitudinal sectional view through the control handle and mounting bracket therefor; f

Fig. 5 is a plan view of the frame or cradle and yoke in which the motor is mounted;

Fig. 6 is an outer end view of the same showing the motor in place;

Fig. 7 is a transverse section through the propeller shaft on the line 7 7 of Fig. 9;

Fig. 8 is a cross section on the line 8-8 of Figure 9;

Fig. 9 is an axial section through the circuit controlling mechanism on the line 9 9 of Fig. 8;

Fig. 10 is an isometric view of the stationary contact members of the circuit breaker;

Fig. 11 is an enlarged end view of the muiller;

Fig. 12 is a. fragmentary elevational view showing the catch for holding the motor in horizontal position; and

Fig. 13 is an axial section through the inner end of the propeller shaft tube showing the coupling for engagement with the engine The engine 5 includes-a crank case 6, cylinder 7, and crank or engine shaft 8.

The crank case 6 is or flanges projecting rom opposite sides thereof. .These flanges'9 engage upon inner parallel portions 10 of diverging arms 11 of a V-shaped frame or cradle 12 in which the engine is adapted to be mounted as shown. Suitable bolts 14 secure the engine -rigidly in place in the cradle. The inner ends ofthe parallel portions of the arms 11 are provided with lugs 15 which project downwardly into the upwardly .projecting bifurcated ends 16 of a yoke member 17. Suitable pins or bolts 18 pivotally mount the cradle 12 in the yoke 17 for tilting or swinging movement in a vertical plane, for a purpose which will appear as this description proceeds. The formation of the cradle 12 and yoke member 17 and the pivotal connection provided therebetween permits suspension of the lowgr art of the crank case of the engine down etween the upwardly projecting bifurcated ends, 16 of the yoke member, providing a low center of gravity for the motor and disposing the propeller rovided with arms shaft down in the lane ot the cradle. rllhis establishes an ence lent balance which is essential in connection with the craft with which motors ot this type are adapted for use and. minimizes' the propeller shalt inclination necessary to properly position the propeller in the water. At the same time the entire motor is positioned for convenient access and away from the water suiiiciently so that it will not ordinarily be subject to the action thereof.

The yoke member 17 is mounted upon a bracket 19 tor swinging or pivotal move` ment in a horizontal plane about the upper end ota pin or post 20, the lower end of which pin or post 29 extends down through the bracket 19 and engages in a suitable nut 21. rllhe opposite ends of the bracket 19 are provided with clamps 22 for attaching the motor to the stern board of the boat or other suitable board or trame arranged to receive same. llhe clamps 22 comprise bracket members 23 adapted to be arranged over the stern board 24 at shown, and suitable screws 25 for securely and rigidly attaching the same in place.A

@ne end ot the en ine or crank shaft 8 projects rearwardly tgrom the boat and terminutesv when the engine 5 is mounted in the trame 11, just short of a split sleeve or hub 33 carried by the trame 11. The end tace of the shaft 8 adjacent the splitsleeve or hub 33 is provided with a squared socket 27 tor the reception ot a correspondingly formed end 661, (lEig. 13) ot a removable propeller shalt 28. 'llhe insertion of the squared or non-circular end of the propeller shalt 28 into the squared socket 27 connects the pro eller shalt for rotation with the en ine s att.

he opposite end or the propeller shaft 28 extends through a pump body 29 and carries a propeller wheel 30 suitably fixed upon the ropeller shaft for rotation therewith, as y a diametrical pin, as shown. A tube 31 encloses the propeller shaft 28. The outer end ot this tube 31 is secured in the pump body 29 as shown in Figure 3. 'llhe inner or opposite end of the tube 31 is provided with a bushing member 61 (Figure 13) and a collar 62 dxed upon the propeller shalt 28 between the squared end thereof and the bushing member 61 serves to properly position the propeller shalt in the tube 31 and prevent longltudinal displacement ot the pro eller shalt from the tube. ylille-propeller s att 28 with its propeller wheel 30 and the tube 31 thereby com rise a unit which can be disconnected rom and connected to the motor as desired. v

To connect the propellershatt with the engine-shalt, the tube 31' with the propeller -shalt?. retained against longitudinal displacement therein, as already pointed out, is inantenati serted through split sleeves or hubs 32 and 33 carried by the frame 11 to properly enge the squared end 60 of the propeller Y tube7 propeller and the'other mechanism associated therewith, from the motor.

The pump mechanism for supplying water to the water jacket of the engine, comprises a hollow plunger 38 mounted for reciprocation in a longitudinally extending bore 39 in pump body 29, the sleeve portion enclosing said bore constituting the cylinder of the pump. The end of the pump body is dared out as shown at 42 to embrace or encase theinwardly projecting portion oi the hub 41 of the propeller 30. The inner end face of the hub 41 is formed with a cam rise 42 which engages the adjacent end of the plunger 38 and reciprocates the same longitudinally or axially along the propeller shaft 28 as the propeller shaft is rotated by the engine 5. A coiled spring '45 interposed between the plunger 38 and the end of a pipe or tube 46 threaded into the sleeve portion of the pump body 29, forces the plunger 38 out against the inner end of the propeller hub 41.

The sleeve or cylinder portion 39 of the pump body 29 is provided with a plurality ot circumierentially arranged ports 48 through which the water enters the pump body as the plunger 38 is forced outwardly beyond the ports 48 by the spring 45. The opposite end ot the pipe or tube 46 is adapted to be connected through a suitable coupling 49 with a rubber hose or flexible length ot tubin connecte throu h a suitable connection 21 with the water jacket surrounding thecylinder 7.. As the plunger 38 is forced inwardly against the spring 45 by the cam surface' at the end of the propeller hub 41, the water admitted through the ports 48 is forced through the pipe 46 and hose 50 thru the water jacket of the engine.

The discharge ol water from the jacket surrounding the cylinder 7 is thru a connection 54 at the upper end thereof into and thru the body of the mulder 55. The mer 55 is of tubular formation having a tubular danged elbow portion at one end bolted to the engine cylinder 7 with the ex- 50, the opposite end of which is haust port of the engine in communication with the interior of the muer. A wall or battle 56 directs the -water into the muliler clear'ot the exhaust port ot the engine.

imacat The opposite end of the muer 55 is provided with a cap 68 held in place by a headed bolt or rod 69 which extends axially thru the muer and engages a nut 70. The cap 68 is provided with a cut-out opening 71 and an arm 72 pivoted at 73 for opening and closing said cut-out o enin 71 as desired. The 'water is disc arge from the muer body 55 thru a spout 74;- and the exhaust gases are discharged thru said spout 7d when the cut-out o ening 71 is closed.

'lhe reci rocation of the pump plunger longitudine ly or axially along the propeller shaft eliminates such shock as has `heretofore accompanied the working of a pump plunger at right angles or normal to the propeller shaft. Where the propeller shaft is relatively long and the ump 1s arranged adjacent the end thereof for positioning in the water, this is a considerable advantage. Furthermore, the working of the engine piston, the propeller and the pump plunger is thereby conned to two lines of action instead of three as is the case where the engine piston works alon one line, the propeller along another, an the pump plunger ,along still another. ln addition the pump arrangement shown is an improvement from a structural and manufacturing standpoint.- By eliminating cross vibration at the outer end of the propeller shaft, gradual loosening of the clamps holding the propeller shaft in lace and loss of the propeller is avoided.

he engine is supplied with combustible mixture from a generator valve or carbureting device 76 which is connected with the lower end of a gasoline tank 77 by way of a connecting tube 7 8; llhe tank 77 is secured by straps 80 in a cradle 79 attached to the engine. The cylinder 7 is provided with a spark plug opening 82 and a handle 83 adapted to be secured in the spark plug openin upon removal of the plug, is provided or carrying the motor. Grease cups- 85 are provided for lubricating the main crank shaft bearings. 'lhe inwardly .projecting end of the crank shaft 8 is tapered and a fly-wheel 86 is keyed or otherwise splined thereupon as shown at 87 and held against longitudinal displacement by a nut 88.

The Vignition circuit breaker is designated generally by the reference character 90. lt comprises an arm 91 (Figures 8 and 9), having a split hub portion 92 by means of which the arm is clamped upon the shaft 8 between the crank case of the engine and the fly wheel 86. rllhe contacting portion of the timer comprises a pair of contact members 94 of angle formation. The upper flanges of these contact members are provided with slots 95 which are adapted to register, when the contacts are arranged together in the groove 96 through the undersurface of block 97 of fiber or other suitable insulatingmaterial. A screw 98 extends up through the slots 95 and block 97 and engages at its upper end ina nut 99 toclamp the contact members 911 together and in the groove 96 and the contact members and insulating block 97 to the under-surface of a flange 100 projecting from the arm 91. rlhe shank of the screw 98 extendsv up through a fianged sleeve of insulation 101 mounted-in a slot in the flange 100. 'lhe sleeve 101 insulates the screw from the flange and the arm 92.

The depending Hanges of the contact members 94 are slotted longitudinally as shown at 102. The spring contact fingers 103 thereby formed are bent inwardly at 104 into close proximity or substantial engagement with one another for wiping Contact with a contact finger 105 which is forced between the spring contact fingers 103 by roitation of the fly-wheel 86 and makes electrical' contact therewith upon every rotation of the fly-wheel to properly distribute the spark to the engine cylinder. .The contact making finger 105- is secured by a screw 108 to the inwardly projecting hub portion 109 of the fly-wheel 86. The upper end of the screw 98 is provided with a terminal nut 110 between which terminal nut 99 the proper wire or circuit connection is adapted to be secured.

Arod connected at one end with the arm 92 and at its opposite end with a lug or ear 116, (Fig: 1), projecting radially from the steering handle sleeve rovides a connection between the sleeve 11 and arm 92 for turning the same about the axis of the shaft 8 by rotation of the sleeve 117 to advance or retard thespark by positioning the contactV 94 at the desired point in the path of rotation of the contact nger 105. The sleeve 117 is provided with a suitable grip 118 fit# ting over one end thereof as shown in Fig. 4.

rllhe opposite end of the sleeve 117 fits over or embraces a stud like portion projecting from the steering bracket 120 which steering bracket is bolted to the side of one of the parallel portions 10 of the cradle 12. This end of the sleeve 117 is serrated at 117 for engagement with serrations or lugs in the' bracket member to normally hold the sleeve 117 against rotation. Longitudinal movement lof the handle against the tension of spring 131 releases this engagement and permits rotation of the handle. A shaft or rod arranged axially through the steering handle projects through the hub-like portion 126 of the bracket 120 and is provided with a contact button 127 normally in electrical contact with the hub-like portion 126 of the bracket 120. rllhe wire 128 which extends from a suitable battery andfcoil unit is connected with the button 127 and thereby normally grounded to the bracket 120 so that upon engagement of the contact finger 105 with the contacts 94 the proper spark is supplied to the engine cylinder. The opposite end of the shaft or rod 125 projects through the grip 118 and is provided with a head 130 between which head and the grip 118 a coiled spring 131 is interposed. rlhis spring 131 normally maintains the 'contact piece 127 in engagement with the upper portion of the bracket member 120. -The grounded connection of the ignition system is broken and the spark supplied to the engine cylinder stopped by pressing the button 130 to move the rod axially against the spring 131 and break the electrical contact between the contact piece 127 and the hub portion of the bracket 120. The attachment of the control handle to the cradle 12 through the bracket 120 provides for turning or swinging the entire motor, by means of the handle 118, about the pin or post 20 to steerthe boat as desiredand for tilting the motor about the pins or bolts 18 in clearing obstructions and beaching or landing. A downwardly extending iin 150 inte al with the pump body29 serves as a ru der and also to protect the propeller 30. Turning or rotation of the handle 118 to advance or retard the spark controls the speed of the en ine. The single handle thereby provides 01` steering and controlling the speed of the engine and for making and breaking the ignition circuit and in addition for raising and lowering the -motor when desired. This sim lifies the structural and manufacturing detal s as well as the operation of the motor. Removal of the bolts clamping the bracket 120 in place permits removal of the entire control handle bracket, steering handle and electrical connections associated therewith as a unit from the motor.

A hook 135 (Fig. 12) pivotally secured to an arm 136 projecting from the yoke 17 by a screw 136 is adapted to be swung up into engagement with an opening in a lange 137 projecting from the inner end of the crank case tol hold the motor with the propeller shaft extending rearwardly in a horizontal plane as shown in Fi re 1.

To attach the motor to the boat the thumb screws 25 are loosened, the brackets 23 set over the stern board 24, and the screws 25 then tightened to rigidly clamp the motor in place. Arrangement of the screws 25 outside the boat is preferable. It' allows more space between the :fly-wheel and the bracket and makes cranking easier. Upon securing the motorin place the hook 135 is unfastened and the rear or outer'end of the propeller shaft lowered until the propellor is properly positioned in the water.

rlhe means for adjusting the inclination of the motor and propeller Shaft comprises an adjusting screw 140 pivoted at its upper end upon a pin 142 secured in ears 141 formed integral with and projectingfrom the outer maracas crank case cover. The lower free end of the screw 140 extends into an opening in an arm 144 formed int al with an projecting from the motor carrying yoke. An adjusting nut 143 on the screw 14() is adapted to be threaded downwardly therealong in engagement with the arm 144 to raise the propeller and upwardly along the stem 140 to permit lowering of the propeller.

rllhe arrangement of the parts of the above described struct-ure ane peculiarly adapted f customary in a two cycle engine to rock the` fly wheel back and forth several times to take a charge into the engine cylinder and then with the spark retarded to as late a point as possible, to rock the fly wheel and crank shaft backward againstl compression until ythe spark controlling cont-acts comev into engagement creat-ing a spark at the ignition plug and starting the engine oit in the opposite direction. lThe operator usually turns three-quarters of the way around from normal position, that is, almost facing the Hy wheel, and places his left hand upon the steering and s ark controlhandle and with his right han rocks the Hy wheel back and forth, and when the cylinder is full. of gas, either through priming or through the above described method of rocking the crank shaft back and forth, the operator places his hand and arm under the fly wheel, gripping the ily wheel and pulling the same back against compression, whereupon, i ition suddenly reverses the motion an turns the engine over in the proper direction. Now, at the same time, it is highly desirable thatthespark be advanced in order that the starting may not be ylost. Consequently, the operator is able by turning the wrist of the left hand to advancev the spark and secure proper running of the engine, all without changing his position or changing hands whichit might be diliicult to do quickly enough to save the start of the engin Certain features oit the present invention may be embodied otherwise than 'as shown and modifications and changes may be made without departing from. the'spirit and scope of the invention.

We claim:

1. 1n combination, an engine, a propeller shaft, and a circulatory pump, said pump having a plunger operable longitudinally along said propeller aft.

. ing said plunger.

Laraoas 2. lin combination, an engine, a propeller shaft, a pump bodyI along said shaft, said pump body having a bore extending in the direction of the length of said shaft, and a plunger reci rocable in said bore.

3. lln com ination, an engine, a propeller shaft, a circulatory pump, said pump having a plunger operable longitudinally along the pro eller shaft, a propeller on saidv sl1aft,said propeller having a hub and cam means disposed on the end of said hub and engageable with said plunger to actuate the same. y

4. lln combination, an engine shaft, a propeller shaft, a circulatory pump, said 'pump having a plunger operable longitudinally along the propeller shaft, a propeller on said shaft, said propeller having a hub, cam means disposed on the end of said hub and engageable with said plunger to actuate the same and spring means in the pump body tor maintaining said plunger in Aengagement with said cam means. v

5, lin combination, an engine, a' propeller tube, a propeller shaft extending through said tube and from the end t-hereoi'a pump body on the end of the propeller tube, said pump body having a bore extending in the direction of the length of the propeller shaft, a plunger operable in said ore and a propeller on the projecting end of the propeller shaft, said propeller having a hub with cam means on its inner end tor-actuat- 6. ln combination, anengine, a propeller tube, a propeller shalt extending through said tube and from the end thereof, a pump body on the end of the propeller tube, said pump body having a bore extending in the direction oi the length of the propeller shaft, a plunger operable in said bore, a propeller on the projecting end oit the ropeller shaft, said propeller having a ub with cam means on its inner end for actuating said plunger, the end of the pum body being flared out to embra'cesaid hu portion and spring means in said bore for maintaining said plunger in, engagement with said cam means.

'i'. lin combination, a motor mounted for vertical and horizontal pivotal movement, a handle for Swingin the motor as desired, a spark distributing evice controlled by rotation or" said handle and means associating with said handle for interrupting the circuit ot said spark distributing device.

8. lin a motor unit of the class described, a control handle,'an ignition circuit, a spark distributing device arranged in said circuit and adjustable by rotation ont said handle and a rod movable longitudinally through said handle for interrupting said circuit.

9. lin combination, a yoke member, 'a motor tiltably carried thereby, a screw piv- """5 oted to the motor, an abutment, a nut threadable along said screw and cooperable with said abutmentto' tilt the motor and means carried by said yoke member and cooperable with the motorto hold the same against tilting movement.

10. ln combination, a bracket member adapted for attachment toa boat, a yoke men1ber pivotal1y carried thereby, a cradle pivotally connected with said yoke member and a motor mounted in said cradle and depending into said yoke member.

11. ln combination, a bracket member adapted for attachment to a boat, a yoke memberpivotally carried thereby, said yoke member having upstanding arms, a cradle having side portions with depending lugs pivotally connected to said arms and an engine having projecting arms cooperable with the side portions Hof said cradle to mount the engine therein and permit the same to depend between the side portions of the cradle and down between the upstanding arms of the yoke member.

12. ln combination, a V-shaped supporting frame, an engine mounted-upon the side portions of said frame and depending therebetween, a propeller shaft, and means carried by said lf-shaped supporting frame for supporting said propeller shaft in substantially the plane of attachment of the engine to said frame.

13. In combination, a bracket member adapted for attachment to a boat, a yoke member pivotally carried thereby a lishaped supporting frame tiltably carried by said yoke member, a motor mounted in said trame, a screw pivoted to the motor, an abutment carried by the yoke member, a nut threadable along said screw and c0- operable with said abutment to tilt the motor and means cooperable with the motor to hold the same against tilting movement.

14. ln a device of the class described, a transverse clamping base, a longitudinal engine cradle, a universal joint connection between said base and said cradle, an engine mounted in said cradle. with its crank shaft extended longitudinally, a propeller shaft extending in line with the crank sha-tt, said engine having a fly wheel at the front end of the crank shaft, a handle extending par'- allel to the crank shaft and rigidly connected to the engine, said handle extending torvvard at the side of the ily wheel.

l5. lin a device of the class described, a transverse clamping base, a longitudinal engine cradle, a universal joint connection between said base and said cradle, an engine mounted in said cradle with its crank shaft extending longitudinally, a propeller shalt extending in line with the crank shaft, said engine having a ily Wheel at the front end o1 the crank shalt, a handle extending parallel to the crank shaft and rigidly connected to the engine, said handle extending torlll() Ward at the side ofthe fly Wheel, said engine having a spark time controlling contact and a movable member on said handle for operating said spark time controlling contact.

16. ln a device of the class described, a transverse clamping base, a longitudinal engine cradle, a universal joint connection between said base and said cradle, an engine mounted in said cradle with its crank shaft extending longitudinally, a propeller shaft extending in line With the crank shaftr` said engine having a ily Wheel at the front end cfy the crank shalt. a handle extending parallel to the crank shaft and rigidly connected tc the engine7 said handle extending forward at the side of the lly wheel, and spark controlling contact means back of the Hy Wheel on the engine shalt. and a sleeve on the handle connected to said Contact means for advancing or retarding the spark.

l?. ln an outboard motor, a transverse clamping base adapted to be clamped to the transveree rear board oit a boat, a longitualmacen dinal cradle connected by a universal joint connection to the transverse base, said cradle having avmotor supporting portion and a y shaft, a relatively movable Contact for controlling the timing of the ignition ot' the motor, said contact being pivoted on the engine concentric With the crank shaft, a lever connected to said contact for adjusting the same, a controlling handle for moving the cradle on said universal joint connection9 said controlling handle extending along one Side of the ily Wheel, parallel to the crank shalt9 a sleeve having a lever rotatable on said handle, and a link connecting said lever. ln Witness whereof, we herento subscribe nur naines this 3rd day of Ufctober, 1922.

` ARTHUR el'. CAllLllflE.

THEDRE L., Sll/lll'llJl.

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