US1621747A - Antitilting lock for reversible outboard motors - Google Patents

Description

March Z2 1927. 1,621,747 v J. A. MOULD -ANTITIL'TING Locx FOR REvERslBLE ouToARD MoToRs Filed Jan. v, 1924 5 sheets-Sheet 1 I N VEN TOR.

l ATTORNEYS:

Mmh 22,' 192,7. 1,621,747

. 1. A. MOULD ANTITILTING LocK FOR REVERSIBIJ "oU'lfBQARD MOTORS Filed Janfv. 1924 .s sneezsfsnaez a INVEN TOR.

www@ ATTORNEYS,

Marh 22 1927. y 1,621,7-47

".1. A. MOULD` ANTITILTING LOCK FOR REVERSIBLE OUTBOARD MOTORS Filed Jan. 7,1924 l .5 Smets-sheet s ATTORNEY;

March 22 1927.

J. A. MOULD v ANTITIITING LOCK FOR REVERSIBLE OUTBOARD MOTORS Filed Jan. '7, 1924 5 Sheets-Sleet 4 y Fi /6. l; I .Im

ATTORNEYS,

March 22 1927. 1,621,747

J. A. MOULD lANIITIL'IING' LOCK FOR REVERSIBLE OUTBOARD MOTORS Filed Jan* '7. 1924 5 Sheets-Sheet 5 A TTORNEY' Patented Mar. 22d, 1927.

l UNITED STATES PATENT oFFicE.

AJAIMES A. MOUL-D. 0F MILWAUKE, WISCONSIN, ASSIGNOR TO EVINR'UDE MOTOR COMPANY, 0F MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

ANTITILTING Loox Fon REVERSIBLE oUTBoARD morons.

Application lecl January 7, 1924. Serial Nol 684,719..

This invention relates to improvements in anti-tilting locks for reversible outboard motors. Y,

-It is the primary object of this invention to provide a novel. practical, and effective lock mechanism operable to restrain anloutboard motor against tilting when the motor is reversed. It is a Jfurther incidental object to control both the reversal and the locking ot' the motor through an adjustment of the tiller handle by means otwhich the motor is steered.

Themotor hereinafter to. be described as containing an embodiment of this invention `is preferably reversible in the manner invented by Stockemann and disclosed in Letters Patent No. 1,131,287, of March 9, 1915. In other words', the propeller and other sub\ merged parts of the motor are supported by the drive shaft housing and may be released for independent rot'ation upon `a vertical axis for the reversal of the thrust of the motor. It has -been customary toaccomplish the release .of the drivefshaft housing and the parts carried thereby for reversing purposes through the medium of a special adjustment ot the tiller handle or any hand grip connected therewith so that the operator who lis utilizing but one hand to steer .the boat, may, with the same hand, and without interference with the steering operation,

a further very important object of `this invention to t're-organize the tiller-controlled .release of the propeller shaft for reversing purposes to the end that the same tiller movement which accomplishes the reversal of the motor may also operate to 'lock the motor against tilting.

.Itwill be understood that the motor is to -be left tree to tilt .during its'normal for ward operation so thatit may oscillate in a vertical plane` if itssubmerged parts encounter an gnbs'tacle. If, however, the, motor oscillate it if its thrust would then tend k,to it were not forthe provision of the special anti-tilt lock to which this appli'cation is particularly directed.

In. applicatfom-Serial No. 627,664, filed by Herbert J. Hillborn on March 26, 1923, there 'was disclosed an automatic lock operable upon the partial rotation 4of the propeller drive shaft about its vertical axis is reversed,

the motor has tilted upon encounterin reverse the motor Whenever desired. It is during reversal. The "'present invention,

relates toa positive and direct connection between the tiller handle and a lock for this purpose, such connection bein adapted to place the locking operation un er the direct control of the operator so that the locking .of the motor will actually occur before the reversing operation commences instead of being dependent upon an automatic function performed by the motor when the reversing `operation is partially completed. It is a further object of this invention,therefore, to provide in a device ofthis character for the` operation of an anti-tilting lock at the time of commencement of a reversin opera-- tion rather than at some later'perio The transoms of boats are inclined at various angles so that the'braclrets which are used for the attachment of outboard motors to small craft ordinarily include rearwardly projecting arms between which there is a block adapted to define the normal vertical 'position of the motor. In this wayV the .adjustable but provided with means for fixing its position of adjustment so that when a submerged obstacle and is again restore to its normal position, no readjustment of the positioning block will be necessary. It 1s proposed, therefore, in connection with4 the resent invention to provide a construction such that the motor will not only be tiltable, and will not only be adapted to be locked against tilting by the operation of the tiller ment ot' the tiller handle and no consclous 'effort on the part of the operator will be required torestore the motor to the identical `upright position from which the tilting operation commenced.

- Further objects of, thisv inventionare handle, but will also be so designed that `I after the 'motorihas tiltedsno further adjustsimilarly.to other outboard motor reverses of this general type; to provide a construction in which the tillen will be positively connected to the submerged parts ot` the motor irrespective of the question as to whether' or not the engine is in operation or is exerting any thrust whatsoever through the driving gears in the sulnuergcd gear casing so that steeringmay be accomplished even when the engine is at rest; and to provide a. construction in which the operators hand will be protected from injury when. the motor tilts by the release ot the tiller from the reversing and locking mechanism for independent pivotalmox-*ement In the drawings: Figure 1 is a side elevation of an outboard motor embodying this invention, the showing being largely diagrammatic to indicate A the relative positions of the parts, regardless of their relative proportions.

Figure 2 is an enlarged detail view in partial vertical section of the adjustable and normally fixed bearing block, the propeller vdrive shaft housing, and the lock carried by block, the shaft housing, and the locking.

member.

Figure 8 is a., vertical section taken on line 8-v8 of Figure 7 Figure 9 is a section on an enlarged scale taken on line- 9-9 of Figure 1.

Figure 10 is a front elevation of the parts shown in Figure 9. Figure l1 is a perspective view of the parts of the tiller releasing device showing such parts in the relative positions in which they appear when assembled. Y

Figure 12 is a detail view taken ona section indicated at 1 2-12 of Figure 3.

Figure 13 is a` view similar to Figure 12 showing the parts in the relative positions which they occupy during a reversing operation. p

vFigure 14 Vis a section similar to Figures 12 and-13, showing'l the parts in lthe 'relative positions whichthey occupy'when the tiller is released from the reversing mechanism as in the event of the tilting of the motor.

Figure' 15 is a rear elevation of a modifiedI Figure 16 is a rc'ar elevation of. the parts shown in Figure 15 as such parts appear duringl a reversing operation.

Figure 17 is a section taken on line 17-1'7 ot Figure 15.

Figure 1S is a section taken on line 18--13 of Figure 1G.

l `igure 19 is a detail view in sidehelevation ot the, middle plate illustrated in Figure 11.

Figure 20 is a. detail view in perspective of a modified bearing block embodying this invention.

Figure 2l is a. rear elevation of the complementary interlocking element carriediby the shaft housing and adapted for interaction with the bearing bock shown in Figure 20.

Figure 22 is a section taken on line 22--22 of Figure 23.

Figure 23 is an assembled view in side elevation of the elements shown in Figures 2() and 21, when such elements are in releasing position. t

Figure 24 is a view similar to Figure 23 and showing the elements thereof in one position of interlocking engagement.

Figure 25 is a vienY similar to Figures 23 and 24 and showing the elements in a different interlocking reation.

Like parts are identified by the same reference characters throughout the several views.

lnasmuch as the outboard motor herein disclosed has already been identified as being of the same general type as that disclosed in the patent to Stockemann, No. 1,131.287. of March 9. 1915, it will be ainnecessary to describe it in detail. The outboard motor includes an internal combustion engine of which 20 is the crank case, 21 a cylinder. 22 a tl)v wheel housing and magneto providing current for the operation of spark plugs such as that shown at 23` and 24 is the fuel tank.4 -The crank shaft 26 of said engine is connected with an axially aligned drive `shaft. 25 by meansv of a splined connection hereinafter to be described. The 'drive shaft extends downwardly through a. normally vertical shaft -housing 28 carrying a submerged gear casing 29 formed to provide rudder elements30 and 31 and a skeg 32. Within the submerged gear casing 29 the drive shaft 25 is connected with a propeller shaft upon whicha nut 34 secures a propeller 35. suitable pump including "a caslng shown at 36 forces water vthrough pipe 37 to a duct 38 xvhichis led upwardly Within a groove 39 in shaft housing 28 to a distributing -chamber 40, from which it is carried by pipe 41 to the cooling jackets of cylinders 21. The water connections are. more particularly described in the application of James A; Mould. executed of even date herewith, and entitled Vater supply connections A The entire outboard motor is pivoted by:

means of a pin 45 -to a bracket 46 having athumb screw 48 for its attachment to the transom of a boat.u The bracket is provided with rearwardly projecting arms 49 spaced.

upon either side of the shaft housing 28. These are the arms alicady referred to as facilitating the initial adjustment of the motor to ainormal upright. position from which it is free to tilt during its norlnal forward operation,- but to which 1t,1s rc tained during reversal.

Bolted to the crank case 20, by means of bolts 50, is a casing element 52 which includes a downwardly extending sleeve ,having an enlarged portion comprising the wate'ivdistributing chamber 40. Externally of sleeve 53 is a bearing element 54 apertiu'ed at 55 to receive the bracket pivot pin 45. Through this bearing element the entire motor `1s plvotally connected to, the

- bracket, and within the bea-ring element the entire motor is free to oscillate upon a vertical axis fory steering purposes. Such oscillation for steering purposes is'controlled by means of a tiller handle 6() which, although pivotally connected to `the motor for movement in a vertical plane,is nevertheless fast thereto for oscillation therewith in a horizontal plane. The particular mounting of the tiller handle 60.will be hereinafter described.

As previously stated, the crank shaft 26 which is fixed againstvertical movement is in splined connection with the drive shaft 25, whereby to permit vertical movement of the drive shaft within the shaft housing 28 and related parts. This splined connection will now be described.

y Threaded or otherwise secured to the lower ex-tremity of drive shaft 26 is a cylinder 6l provided with a bore 62 axially aligned to the crank shaft. The cylinder finds a bearing within a sleeve 63 which is integrally connected with the revoluble portion 64 ofia reversing latch mechanismbhere- This sleeve l63 1s' inafter to be described. journaledwithin the interior of sleeve 53 which depends from casing element 52. By this arrangement the' drive shaft 25, which fits within bore 52 as illustrated in Figure 3, is given an adequate bearing support at its upper end.

Extending transversely through the cylin drical member 6l and through the bore 62 thereof is a slot 65 whichreceives a square key 66 carried by the drive lshaft 252 Thus, the crark shaft andJthe drive shaft are positively connected for simultaneous rotation, although a limiteddegree of relative vertical movement may( occur between them.

Extending transversely 'through casing `element 52 is a horizontal sha-ft 68 which is .--rota'table by the vertical movement vof the tiller through-mechanism hereinafter to be described. -This shaft carries a yoke designated inV its entirety by reference character 70 and including a sleeveportion 7l keyed to shaft 68, and a pair of arms 72 and 73 having fingers 7 4 disposed radially with reference to crank shaft 26. The cylindrical latch clement 64 is concentric with the crank shaft and may be provided with' a recess 75 adapted to receive a guiding element 76 carried by the crank case 2() and provided. with a bushing at 77 for crank shaft 26.

`The latch element 64 is provided with vertically spaced'annular flanges 78 and 7 9 adapted to receive. between them the fingers 74 of the yoke or shifting fork 70.- 'lhereby it is made possible for the limitedoscillation of shaft 68 to produce a corresponding vertical movement of the'latch element 64 and parts connected therewith. The sleeve 63 of` jacent the latch `device 64. Plate 82 carries. a relativelyixed lug 83 and a resiliently yieldable dog 84 which may project through an aperture in the plate and -may be supported by a flat spring 85 in the manner best indicated in Figure 4.- The fixed lug 83 and the yieldable dog 84 are spaced apart ,to receive between them either of a pair of lugs 88 or 89 carried by the latch device 64. Lug 88 is at a higher level than lug 89, but the 'lugs are preferably substantially opposite 'to each other across the axis of the drive shaft 26.

As viewed in plan, the crank shaft and drive shaft of the internal 'combusti-on motor illustrated are intended to revolve in a clockwise direction, In transmitting its motion to the propeller shaft through the` usual bevel gearing in casing 29 the drive shaft -25 produces a torque tending to rotate the entire casin propeller, and drive shaft housing bodily about its own axis. When the drive shaft vhousing is free for such rotation it 4will actually rotate with is related" parts until it is brought torest by Sonie latch mechanism. such as that shown by Stockemann, or such as that which is herein disclosed. There is lessresistance to such rotation than there is to the rotation of the propeller.. Normally the drive shaft' housing a'nd parts connected therewith are mamtalned against rotation iii either ,direc tion by the engagement with lugs 88 of the fixed lug 83 on the one side and-.dog 84 on the other. '/Ihus, there is atall times a positive connection between the tiller and the lvtorque above referred to. If, however,- the tiller be moved downwardly in a vertical plane to oscillate shaft 68 and the connected voke or shifting member 70, the result, will be to elevate bodily the rotatable latch element- 04, shaft housing 28, shaft 25, and all of the submerged parts .supported b v the shaft housing. As a result oftheelevation of these parts, lug 88 on the rotatable latch device will be li tted above the stationary lug 8?. and the shaft housing and submerged parts will Vbe, free to rotate while supported h v the lingers T4. The parts will continue to rotate until lug 89, which is now in the plane ot' fixed lug 83, acts upon the cam surface of dog 84 to press that dog aside and, passing the dog, engages the fixed lug 83. In this position of the parts the propeller will be removed 180or about. the axis-ot' drive shaft from its originalposition, and consequently,v its thrust willl be exerted rearwardly. In a broad Sense, this reversing operation is considered the equivalent of any other type of reverse. lIt is, however, accomplished in the distinctive manner above referred to.

The motor will continue to operate in reverse as long as the shaft housing and related parts are maintained in their position of elevation by the depression of .the

tiller handle. Then the tiller handle is elevated, however, the weight of the shaft housing and parts connected therewith will restore the mechanism tothe lower level at which the sha-ft housing and rotatable'latch device are indicated in Figure 3. As the downward movement of thewrotat'able latch device 64 occurs, the lug- 89 of said de-vice willpass out of lengagement with fixed lug 83, thereby releasing the device and the shaft housing for continued rotation through an additional 180 until lug 88, which has now been restored to the plane of fixed lug 83, again contacts with the last mentioned lug. For reasons hereinafter to be pointed out,l lug 88l is in a plane slightly vertically removed'from the plane of lug 89. The dog 84 serves a dual function in that it absorbs to some degree the shoclr of the moving parts, and also restrains such parts against retrogressive movement when the torque, productive of clockwise movement, is .non-

existent. e

Means hasnowbeen described for aecomplishing the "reversal ofV this type of outboard motor in a. peculiar manner contemplating the bodily liftingjof the propeller to effect its releasefor bodily rotation to its new position. i Y

The normal upright position of the motor is determinedr by means of a block adjustal-le between arms 49 ofthebracket and designated in yits entirety. by reference allaracter 90. This block preferablycomprises a channel or semi-tubular portion 91 having a rearwardly extending apertured ear 92 through which a bolt 93 may pass to engage the block adjustably with the bracket. For this purpose the bolt 93 may be inserted through any one of a number of apertures 93 in` the bracket .arm. The upper end portion 94 of the block is semi-tubular and is concentric with the lower portion 91 thereof but is of greater radius. It is provided with a semi-annular cap 95 havinga depending sleeve 96 integrally;therewith. These parts' are shown in detail in Figures 2, 5, 7, and 8. The block 90 being fastened to the arms 49of the bracket is, except for its adjustment along said arms, fixed against movement either rotative or vertical with reference to the bracket.

Arranged for co-opcration with block 90 is a complementary loek member 98 which may conveniently comprise asleeve t99 axially slotted at 100 and provided' upon either-side of said slot with ears 101 through which a clamping bolt 102 may be turned up to flex the wall .of the sleeve, and thereby to clamp the device in any desired ad" justinent along the drive shafthousing 28. At its upper and lower end sleeve 99 carries concentric annular flanges 103 and 104, respectively. These flanges are normallypositioned immediately beneath those portion of the block 90 with which they are adapted to eo-operate.A Flange 103 is spaced from shaft housing' 28 at a distance equal to or greater than the thickness of the semi-tubular element 96 carried by the block, and similarly the flange 104 is spaced from sleeve 99 for sufiicient distance to be adapted to receive the lower end of the semi-tubular portion 91 of the block. n

With the parts in the position illustrated in Figure 2-the motor is free to oscillate in a vertical plane about the axis of its pivotal connection at 45,.with the bracket. Flanges 103 and 104 are spaced suiliciently below the semi-tubular block elements 96 and 91 to avoid sueh elements during their bodily oscillation about the axis of pin 45. In the position of the parts indicated in Figure 2 the propeller drive shaft 28 is in its lower position and the motor is operating forwardly. Figures 1 and 3 also illustrate the parts as they appear whenthe motor is op` erating forwardly. It, however, the tillery vhandle '60 is depressed to oscillate the trans- 120 verse shaft G8 `and thereby to-elevate shaft housing 28 and relatedl parts, the obvious effect upon the mechanism just described l will be to cause thevinterlocking of flange A103 with the semitubular element 96` and 125.-'

the similar interlocking of flange 104 with the lower portion 91 ot block 90. The relationof the. shaft housing and the lock element 98 carried thereby to the relatively stationary block 90 at the time of reversal 130 l-lO is indicated in' VIiigure 8. Obviously, theL engagement between fianges 103 and 104 with the semi-tubular elements 96 and 91, respectively, will` operate toprevent the motor from tilting about the axis of pin 45, but will have no effect such as to prevent the rotation of the shaft housing for apurposes of reversal in the manner already described. As a matter of fact, either of flanges 103 or 104, with its"complementary portions of.

Iwith the bracket. .Due to the fact that in this particular structure the reversing operation is automatic and is produced by engine torque, it is true that rotation of the housingfor the purposes of reversal does not commence until after the housing i's interlocked with the bracket. This result is regarded as extremely desirable.

A peculiar consequence of this arrangement is noted when it is desired to restore the motor toforward operation. When the tiller handle is elevated the .Shaft housingl is first caused to drop and, so far as the structure thus far described is concerned,

would unlock themotor against tilting before the propeller could. swing to a point where its thrust would no longer produce the tilting effect. Therefore, special means is necessary to prevent the anti-'tilting lockfrom becoming disengaged until .the reversing operation is so far completed that the. thrust of the motor will no longer be exerted in a direction to tilt it. This is accomplished by disposing lugs- 89 and 88 in spaced vertical planes, lug 89 being-normally sufficiently below the level of the fixed lug 83 so that, upon the downward movement of the shaft-housing and related parts, lug 89 will be released to permit the rotation of the shaft housing before flanges 103 land 104: are released from interlockingl engagement with block 90. To ensure the continuance of this interlocking engagement during the time required for the reversing operation to commence, I provide optionally upon the complementary lock element 98 a small bear-v ing lug 105 which extends slightly beneath flange 103 and is adapted to ride upon the shoulder 106 of the bearing block 90. As long as the tiller handle is maintained in a depressed position so as to support the shaft housing at its full elevation, lug

105 win be raised out of contact with shoulder 106. When the tiller is released, however, to drop the shaft housing to a. position wheref the -lug 89 connected therewith will clear the stationary lug 83, lug 105 of the complementary block member 9,8 will then contact and ride upon shoulder 106 to support the shaft housing in a position where the flanges 103 and 104 will still be interlocked with block 90 pending the partial completion of the bodily rotation of the propeller. The propeller will at once commence such rotation, due to the factthat lug 89 is free of the stationary -lug 83. After it has completed approximately 90 degre of rotation its thrust will no longer be xerted in a direction to tilt the motor onithe bracket, and at that point lug 105 will ride off of shoulder 106 to complete the release of'interlocking engagement betweenv members 90 and 98. V A modified construction of interlock between the rotatable shaft housing and the .i

bracket is illustrated in Figures 15 to 18,y

inclusive. The modified construction, like that already described, is adapted to permit the free rotationV of the shaft housing with respect to the bracket while interlocking the motor and the bracket to secure it against tilting. Furthermore., in the modified construction the interlocking vaction is secured by the vertical movement of the shaft housing lalready described.

, lhe modified block 90" is provided with a bearing wall 126 arcuately formed and concentric with the axis of shaft housing 28. This bearing opens rearwardly to permit the unobstructed rearward passage of the shaft housing when the motor is Vpropelling its boat in a forward direction. The block is provided, however, with oppositely disposed staggered fingers 127,128, and 129 which may be arranged in the manner indicated in Figures 15 and-16. There is just sufficient clearance between ngers 127 and 129 on the one hand and finger 128 on the other to permit the free passage of the shaft housing; Upon the-shaft housin is a bearing element 130' of generally cylin ical contour and arranged to be complementary to the bearing block 90. Portions of bearing element 130 are cut away as at 131, 132, and 133, such portions corresponding in the normal position of the parts to the , fingers 127, 128, and 129, respectively; It will be understood that the bearing element 130 is of sufficient diameter so that it'could not pass outwardly scribed. IBy reason of such portions the` fingers will not, in the normal position of the parts, interfere with the tilting of the motor.

Intermediate the cutaway portions above described are uncut annular portions 134, and-135. A similar annular portion 136 lies beneath the lowest recess 133. The arrangement is such that the upward movement of the shaft housing, produced by the control lever 60, will move the several annular portions 134, 135, and 136 into the plane of fingers 127,` 128, and 129, respectively, thereby positively interlocking the motor with the bracket prior to the commencement of the reversing operation. lVhile so interloc'ked, the complementary bearing element 130 will rotatev with the shaft housing within the bearing provided by block and thefingers thereof. Theextent of its initial'rotation will be 180 and the motor will thereupon be in reverse.

When it is again desired to4 operate the motor in the forward direction, the pressure upon the tiller handle will be upward to lower the shaft housing and related parts. The intermediate connecting portions 135 and 134 of,the bearing element will thereupon move out of the plane of . fingers 128 and 127, but the motor will not be released for tilting, due to the fact that in `this'position of the parts and until the shaft housing has accomplished a parti-al rotation, the unrecessed portions 137, 138, and 139 ofpbearing element 130 will lie behind fingers 127, 128, and 129 of the block, respectively. It is` only when the shaft housing and bearing element 130 have rotated practically to their original forward positions that recesses 131, 1,32, and 133 will again be .presented to the fingers in such a manner as' to free the parts for the tilting of the motor. Consequently, the result of this arrangement is to make unnecessary the use of such a lug as is ilndicated at 105 in the first described embodimentbf this invention.4

,A third type of interlock between the shaft housing and the bracket is` illustrated in Figures 2O to 25, inclusive. In this third type the bearing block 190 is provided with the usual apertured boss 92 through which a bolt may be passed to secure the bearing block between the arms 49 of the bracket. Bearing block 190 is symmetrical in that it is provided on each side with vertically spaced fingers 140. The inner surfaces of such fingers are finished to comprise arcuate extensions of the semi-cylindrical bearing surface provided by the body of the block. The portion of the block intermediate such fingers is semi-circular in cross section and of a` diameter adapted to receive freely the com lementary interlocking element shown in Figure 21 and hereinafter to be described. Inasmuch as the parts fit accurately together` the under surface of each finger may be beveled, if desired, in the manner best indicated in Figures 23 to 25 inclusive. The bevell is concentric with the pivotal axis about which the motor tilts so that there will be no binding between the block 190 and the complementary bearing element on the shaft housing. l

The device to be mounted on shaft housing V28 comprises a bearing and interlocking element198 complementary to block 190, and including a sleeve portion 199 which is just suliciently larger than the shaft housing to be received conveniently thereon, and is prolation to the shaft housing by ,means of. a,

countersu nk screw 144.

lfVhen the parts are properly, assembled they will, during the normal operation of the motor, appear as illustratedin Figure 23. The portions 142 of the bearing locking element 198 carried by the shaft housing will be disposed'intermediate fingers 140 and will therefore be ineffective to lock the shaft housing to the bracket. lVhen, however, the tiller handle isl depressed preparatory to reversing the motor, shaft housing 28 will be elevated in the manner described and, by reason of the vertical movement -of the shaft housing',y each `of the enlarged cylindrical .bearing elements 142 will be raised into the plane of a finger carried by block 190. As soon as the annuli 142 are engaged behind' their respective finger portions of block 190, the motor will be locked against tilting and the reversing operation may connnence.

In the ultimate position ,reached by the tiller handle the parts will appear as they are shown in Figure 25. It will be noted that each of the cylindrically surfaced annuli 142 isvertically aligned within the grasp of a pair of oppositely disposed fingers upon block 190. A large amount of bearing surface is thereby provided sothat the friction developed duri-ng the reversing operation will not produce abnormal wear between the interlocking parts.

As previously stated, when it is desired permit the continued rotation. of the shaft housingto restore the lnotor for forward propulsion, the first operation consists in releasing the automatic reversing mecha-A Iiism to permit of the free rotation of the shaft housing. The parts are so arranged that when the tiller is elevated sufficiently tov release the shaft housing for rotation the cylindrically surfaced members 142 will still be interloeked with fingers 140 to' substantially the extent'indicated in Figure 24;. In other words,'the parts will not yet be free'for tilting. If desired, the motor may be operated with the parts thus locked against tilt ing. 4 If, however, the upward movement of. the tiller be continued subsequently to the time when the shaft housing and propeller reach their` normal positions for forward propulsion; the parts will again reach the relative positions indicated in 'Figure 23, so that the motor will be freed for tilting.

Three different types of interlocking mechanism for securing the motor against undesired tilting with respect to the bracket have thus-far been described. i In each case the interlockingof the motor and bracket is manually controlled and occurs immedi ately upon the depression of handle`60. In each case the reversing operation is automatic and occurs subsequently to the. interlocking of the motor and bracket. In each case also therestorati'on of the shaft housing and propeller to normal forward driv ing position occurs before theinterlock be- )tweenthe motor and bracket is released.

It is somewhat of a problem to 4connect pump casing 36 with the water jacket of Y cylinders 21 while permitting relative rotative-land vertical movement between the pump and the water jacket. This is preferably accomplished, however, in a Way which is described more particularly in the co-pending application executed of even date herewith byI me, James A. AMould, and entitled Water supply connections. Briefly stated, the desired result is accomplished by longitudinally grooving the shaft housing 2,8 in the manner indicated at 39 sou that tfhe tube 38, connected with pipe 3T and extending upwardly in groove 39, is'entirely within the .radius of the shaft housing. located, the tube is protected from all injury and is at the same time readily accessible. At its upper end this tube'dischargesinto the .distributing chamber 40 which has upper and lower packing rings adapted to prevent leakage at this point. The chamber is adapted to receive water from tube 38 irrespective ofthe position of rotation of shaft 28, and the Water so received is led from the chamber to pipe 31. Thevertical height 'of the 'chamber is sufcien-t so that irrespective of the vertical movement of shaft housing 28 and related parts Water delivered from tube 38 will always be received. into the chamber.

When an outboard motor is tilted accidentally, due to encountering a submerged obstacle in the water, a serious injury to the hand of the o erator is likelyfto result if the tiller is ma e fast to the motor vso as to tend to force the hand of ,i the operator downwardly against the seat of the boat.

SoV

Consequently, various .patentees havemade.

'provision to permit the handle to yield up- Ordiwardly with reference tothe motor. naiily, however, where such provision has `been made the tiller has performed nio functionother than that of directing the course 'of the craft to which the motor is attached'.

In the present case the tiller not only directs the course of the boat but also, when depressed, serves to 7lock the motor against tilting and to put it in condition for automatic reversal.- Consequently, it is desirable to make some provision for. releasing the tiller forfree upward movement with respect to those parts which it controls. In a degree this might be accomplished by an ordinary stop hinge adapted to leave the tiller handle free to yield upwardly while permitting its downward movement to be transmitted to the rock shaft 63 for the control of the locking and reversing operations. If such a hinge is used, however, the motor would be out of the operators control and serious consequences of encountering 'submerged obstacle might .be made even more serious vthan as it' the motor were of the non-tilting variety. It willbe remembered that the reversal of this motor is 'accomplished by lifting the drive shaft and the submerged portionsof the motor. Consequently, it will be. obvious that if the submerged obstacle acted upon-'skeg 32j in la wayv to lift these parts, vthe .motor might* automatically reverse itself and again run upon the obstacle. At best, the motor would be temporarily out of control andthe shaft housing would be free. of anyrestrainingv 'v Y iniuence and could move upwardly or downwardly'subjectto all forces acting thereon.

To guard against such a contingency, have devised an appliance through. which the tller handle is connected with rock shaft G8, and which isso constructed that in the normal position of tiller handle, and in any i elevated position thereof with respect to the remainder of the motor, the shaft housing and all related parts will be locked against vertical movement and will be released for vertical movement only when the tiller handle is actually depressed by the operator.

rIhe safety appliance for securing the rever-sing and anti-tilt lock against accidental operation is disclosed in igures 11 to 14, inclusive. It comprises a series of Athree plates 110, 111, and 112. Ilate may con- 'veniently' comprise a part of the crank case casting, if. desired. -If `it is a separate ele ment it is screwed to the casting by screws inserted 4in the apertures 113. ach of Ithe three plates 110, 111, and 112is provided with an opening adapted to receive a sleeve' 114, which is shown in dotted lines in Figure 4, and to which sleeve the plate 111 is keyed. The sleeve in turn is keyed to transvverse shaft 68 which extends outwardly scribed connects plate 111 normally with the.,

relatively fixed plate and connects plate 111 with plate v112 as' soon as plate 112 is actuated by a downwardly depression of the tiller handle.

Plate 111 is provided with an opening 117 which extends therethrough from one side to the other. lEach of plates 1 1() and 112 are provided with recesses indicated respectively at 118 and 119. A steel ball 120, similar to those used in ball bearing, is disposed in hole 117 and is of greater diameter than the thickness of plate 111 so that the ball will necesfarily project from said hole at one side or both sides of plate,

111. A stop 319 projecting forwardly from plate 110 is adapted to contact with a pin 320 projecting at both sides of plate 111. When the pin. contacts with the stop, the recess 118 will Abe aligned withhole 117 in the manner indicated in Figure 12. Plate `112 is provided with a similar stop at 121 which, during the normal steering of the craft, will usually be slightly above pin 320 or may contact' therewith. When stop 121y contacts with pin 320, recess 119 will be aligned with hole 117. The normal position of the recess, however, will be slightly out of the 'line with said hole and above said hole, as indicated in Figure 12. Thereby the ball 120 will tend to project from hole 117 into recess 118 and, if the tiller is movedupwardly relative to the motor, as bythe tiltingr ot' the motor when an obstacle is encountered. then the imperforate surface of plate 112 will positively confine the ball in a position wherein it will be partially wit-hin the hole 117 and partially within recess 118. In the normal positions the ball will tend to be so confined, due to the fact as aforesaid, that recess 119 will in normal position o t' the parts be slightly elevated above hole 117. Obviously, when the ball is confined as aforesaid, to be partially in plate 110 and partiallyY in plate 111, the result will be to key these plates together against relative movement in either direction. and since plate 111 is keyed to the rock shaft G8 which controls the reversal of the motor and its interlocking with the bracket, there can obviously be no adjustment of the motor for reversal or interlocking as long as the ball retains this position. Thus, whenever the motor is tilted and the tiller is retained in the hand of the operator, no reversal orinterlocking of the motor and bracket can occur.

Them however, the tiller is depressed, as in the conscious attempt of the operator to reverse the motor, plate 112 will be oscillated slightly downwardly until its stop member 121 contacts with pin 120. This initial movement of plate 112 will bring its recess 119 into alignment with hole 117. Thereafter, due to the contact of stop 121 with pin 320, the plate 111 will commence to move downwardly with the tiller. The relative movement occuring between plates 111 and 110 will cause recess 118 to move out of alignment with hole 117, and the ballv 120 will thereby be forced across hole 117 into the recess 119 which is aligned therewith. In consequence of such movement, the ball will key plate 111 to plate 112 so that the tiller will be enabled to oscillate rock shaft 68 and thereby to interlock the motor with the bracket and to free the parts for reversal. Figure 13 illustrates the relation of recesses 118 and 119 to hole 117 during reversal. Due to the fact that plates 111 and 112 are keyed together by ball 120 the pin 320 is not called upon to withstand the strain of lifting the shaft housing and related parts. 1

The plates may be made to perform a further function of defining certain positions of the tiller handle, if desired. For this purpose a hole 'may be bored in block 110 and lmay extend therethrough into the casing member 52. A spring may be seated in this hole to press outwardly a ball 146.

In the opposing face of plate 111 will be a series of depressions 148, 149, and 150, one of which appears in` Figure 9, and all of which are shown in Figure 19. In the normal position of the tiller handle, to wit,- in its elevated position when the shaft hous-l ing is fully depressed and the motor is free to tilt, the interlocking parts being disposed as illustrated in F igures 2, 15, and 23, the recess lin the face of plate 111 will register with hole 145 in' plate 110` and the ball 146 will be forced by the spring behind it into the registering recess. To displace the ball and permit relative movement to occur between plates 11() and 111 will require a certain degree of downward pressure upon the tiller handle.'and therefore, the location of recess 150 will dene a tiller handleposition in which the motor will be disposed for forward propulsion and will be free to tilt.

lil

Similarly. recess 148 will. in the extreme i deprcssed'position of the tiller handle. register with hole 145 and receive the ball. In this position of the tiller handle the shaft housing and propeller will necessarily have rotated to their reverse positions, and the degree of interlock between the shaft housing and the bracket will necessarily be full. The relation of the interlocking elements in this position of. the tiller handle is illustrated in Figures 16 and 25. Intermediate recess 149 may be used similarly to indicate.

, that a motor constructed in accordance with the disclosure herein will safeguard the operator in every particular, and will nevertheless be subject to operation along the'usual lines and may be constructed, quite cheaply, with standard parts. The motor will be steered by the oscillation of tiller (3() in a horizontal plane. As previously stated, for steering purposes the whole device, includ'- ing the engine, oscillates Within the bearing' member 54 which' connects the motor proper with the bracket. j The block 90, which controls the normal upright position of the motor, is designed to permit the motor to oscillate on a vertical axis f or steering purposes,

and for that purpose is provided with an arcuate bearing surface concentric with the axis of the drive shaft 25 and shaft housing V28. It is not contemplated that the block 90 will be moved after having vbeen adjusted to compensate for-the angle of the transom of any given boat. During the normal forward operation of the motor the motor is not intel-locked with block 90 but is held thereagainst solely by the thrust of propeller 35 which, being exerted in a forward direction, tends to force the shaft "housing into the arcuate semi-circular bearin(lr provided by the block. When the motor tilts, its initial iiiovement will lock it against reversal, and, after the obstacle has passed, the contnued forward thrust of the propeller will restore the motor to its normal upright position in contact with the block. Under no circumstances is any adjustment necessary to restore the motor to normal position after it has been tilted.

On the other hand, when the tiller handle is depressed to lock the motor against tilt-4 ing, reversal will immediately follow, being automatically accomplished in a manner con-1. sequent upon the particular method of in-` terlocking the motor with the bracket. The motor cannot operate in reverse without being interlocked with the'bracket as aforesaid, and the motor cannot operate in a foi'- ward direction without being free to tilt. YThis is true, irrespective of the extent to which the motor is oscillated bodily for steering purposes. y

lVhile the advantages of the particular arrangement herein disclosed will be apparent from the foregoing discussion, I wish .nevertheless i9 .make i@ 9.1??? ille, lPfQadlY with the particular -constructionlierein disclosed. Various other types of interlocks ,may also be employed to secure the motor aga-inst tilting-'and to secure results similar to those contemplated in the use of the particular construction herein illustrated. It is also possible to design other devices within the scope of this invention for locking the controls when the tiller handle is in its normal position or is elevated with respect to the motor. Furthermore, I recognize the fact that it would not change the principle of operation' hereof to ilse a gripv device on the tiller handle to 4perform some one or more of the functions which are controlled in the present embodiment of my invention b v the tiller handle itself.

I claim: y

1. In a device of the character described, the combinationwith a bracket and an outboard motor pivotally connected therewith for tilting movement aiid provided with a normally upright drive shaft, ot' a sleeve Iencircling said .drive shaft and provided with an arcuate lock element substantially concentric with said sleeve, and a supple.-

mentary areuate lock element connected with said bracket and normally out ot' engagement with said first mentioned lor-k element, said arcuate elements being adapted for interlocking interaction upon the occui'rence of relative axial movement belll() tween' said elements in a given direction, u

whereby said outboard motor may be secured against pivotalmovement.

2. In a device of the character described, the combination with a bracket and an outboard motor pivotally connected therewith jfor tilting movement and provided with a normally upright drive shaft, of a sleeve.

encircling 'said drive shaft and provided with an arcuate lock element substantially concentric with said sleeve, and a supplementai'y' lock element connected with said bracket and provided with an arcuate por- -tion normally out of engagement with said first mentioned lock element and adapted for interlocking interaction therewith upon the occurrence of relativeaxial movementI between said elementsin a given direction, together with a tiller handle operatively connected with said motor to control the direction of thrust thereof, said tiller having a portionl mounted foi' independent pivotal movement other than that required for the directionof said motor, and being operatively connected with one of said lock elements for l-.the transmission. thereto of said pivotal movementof said tiller portion in `a direction to produce relative axial shaft and connected said members being movable relatively vertically to effect the operation of said latch and lock mechanism, and manually oper-l able means movement between said. element to effect -their interlocking engagement.

3. In a device of the character described, the combination with a bracket and an outboard motor pivotally supported thereby and having a normally upright shaft, of a housing for said shaft and movable vertically along the axis of said shaft, said housing being also rotatab e about'said axis, catch mechanism engagea e with the housing in either of its extreme positions of vertical movement and upon 180 of rotation thereof, lock mechanism associated with said housing and engageable with said racket `upon movement ot' the housing vertically upwardly, and manually controllable means for moving said housing vertically upward.

4. In a device of the character described, the combination with a bracket and an outboard motor pivotally supported thereby and having a normally upright shaft, of a prime mover rotatable by and movable about said shaft, latch machanism and lock mechanism simultaneously operable to permit the movementy of said prime mover about said shaft through an arc of i800 and to prevent pivotal movement of said motor, said latch mechanism and lock mechanism each including a non-rotatable member and a member-rotatable about the axis of, said with said prime mover,

for effecting relatively vertical movement between said members.

5. In adevice of the characterdescribed, the combination with a bracket and an outboard motor pivotally connected therewith, and having. a prime mover portion said bracket and motor being formed for abutment in an upright position of said motor, whereby to define a position for said motor to which said motor can return without manipulation' lafter pivotal movement with reference to said bracket, and said motor being normally freely movable to said abutment about its pivotal connection with said bracket, a manually operable interlocking device for securing said motor against tilting movement with ing mechanism operative to control the direction f propulsion of said motor, with reference to the prime mover portion thereof said mecnism being operatively conboard motor nected with said interlocking device for control therewith toreverse said motor upon thecom letion of the interlocking of said v motor with said bracket.

6.111 a device of the character described, the `combination with a bracket and an out- I pivotally connected therewith and' including a prime `mover and profplilson mechanism, a support for said proboard motor lsaid motor and 'said said bracket, and reversnected with said bracket pulsion mechanism rotatably adjustable with reference to said prime mover, and a latch manually operable to release said su port for predetermined degrees of automatic reversal subject to the torque of said prime mover, of interengageable lock parts carried }'espectivel by said bracket and said support and aiglpted Yfor engagement and 'ngagement upon the occurrence' of vertical movement of one of said parts with reference to the other, and motion transmitting connections operative to control saidl latch and connecting it Ywith the movable' part, said connections being adapted to operate said latch to release said support for automatic reversal upon the completion of the interlocking of said parts secure said motor against pivotal movement with reference to said bracket.

.. 7. In a device of the character described, the combination with a bracket and a dirigible outboard motor pivotally connected therewith for tilting and provided with a manually operable lever for the control of the direction of operation of said motor, said lever having a pivotally movable portion, of a stop carried by said bracket and adapted to define the normal upright position for said motor, said motor being normally freely movable to and from said stop, and a lock device connected with said lever portion for control by the pivotal movement thereof irrespective of the steering position of said motor and adapted for the interlockin g engagement of a portion of said motor with a portion of said bracket.

8. In a device of the character described, the combination with a bracket and an outpivotally connected therewith for tilting movement, of a. stop lock adjustable with reference Ito said bracket and providing an open sided bearing to receive thrust from a ortion of said motor, a lever carried by saidl motor and operatively connected for manual operation to control the direction of operation of said motor, and a latch device including elements carried by block, one of said elements being mounted for vertical movement and Vconnected with said lever to be controlled thereby for the operative interlock whereby to and release of said motor and said bracket.

9. In a device of the character' described,

board motor pivotally connected therewith for tiltingY movement, of

and providing an open sided bearing to receive thrust from a portion of said motor, nected with said motor and adapted to control the direction of propulsion of a boat to which said'bracket is attached, and a latch device including relatively vertically movable, engageable parts, one of said parts being connected with said motor and another a tiller lever con-v a stop block conot said parts being connected with saidv the combination with a bracket and a dirigible outbmirdanotor pivotally connected therewith for tilting movement and provided with a prime moverportion and re-v versing mechanism, adapted to reverse its direction of thrust relative to said portion' of a steering lever operatively connected to control said reversing mechanism, and a latch device including relatively movable elements connected respectively with said motor and with said bracket, one of said elements being connected operatively with said lever to be controlled thereby and mounted for vertical adjustment subject to ysuch control with reference to said prime mover portion.

1l. In. a device of the character described, the combination with a bracket, ot a motor tiltably and rotatably mounted with respect thereto and including a tiller lever adapted to be. grasped by an operator to control the rotative position of said motor, of a latch device including relatively movable complementary elements connected respectively with said bracket'and with said motor, said tiller leverbeing pivotally operative independently of motor rotation to produce relative inovementbetween said elements, whereby to control manually the operation of said latch device.

i 12. -In a device of the character the combination with a bracket and an outboard motorV pivotally and rotatably connected with sal'd bracket for tilting 'and directional movement, of a latch device iii-.- cliiding a pair of complementary elements adapted for relative rotative c and axial movement, said elements being connected respectively with said bracket and witlii said motor, and a manually operable lever connected with one of said elements and adapted to produce relative axial movements between said elements, such movements being productive of interlocking engagement and release of said elements. f

13. In a device of the character described, the combination with a bracket, of an outboard motor pivotally connected therewith and including reversing mechanism, a lever including a portion normally'projecting'substantially horizontally from said motor, means for connecting said'lever portion operatively with said reversing mechanism for the control thereof in depressed positions of said portion, and means for disconnectingsaid portion from said mechanism when said portion is elevated above its normal position.

14. In a de vice ofthe character described, the ombmationrwith a bracket, of'anout- Asaid second described,I

board motor tiltably connected therewith and including` reversing mechanism, a manually operable lever normally disposed in a predetermined position andconnected with said reversing mechanism and including a portion treey to move in one direction'from said position without altccting said mechanism` and a key controlled by the free movement of said lever portion and adapted to lock said mechanism against operation when said lever portion is in motion without affecting said mechanism. l

15. In a device ofthe character described, the combination with the reversing mechanism of an outboardmotor. of a manually operable lever'including first and second parts independently mounted, a relatively stationary member adjacent said first part, a key adapted to engage said first part all'"rnatively with said member and with the art, and means operatively colinecting saidj first part with said reversing mechanism for the control thereof, whereby said first and second parts, when engaged by said key, may be moved simultaneously for the control of/said reversing mechanism, and whereby said secondpart may be moved independently of said first part, said lfirst part being keyed to said member with said reversing mechanism secured inoperative i' thereby.

. 16. In a the combination of a pair of members pivotally mounted-for movement about a common axis, one of said members being manually operable and the other being attached to motion transmitting connections, of a device of the characterv described, i the combination of la pair of members pivot stationary part adjacent said other member,`

a keyreciprocable through said other meniber and engageable alternatively with` said part and the `manually operable member, and means Jfor' rendering the shifting ot said key automatically responsive to movements of said members, wherebyin certain positions of said manually operable'member said other member will be locked thereto and in other positions of said manually operable membersaid other member will be locked to said art.

18. In a device of the character described,

the combination witha relatively stationary member of an internal combustion engine, of a plate oscillatoryA adj acent` said member and provided' with e transverse hele at a lil ' a second plate mounted forthan hole,

vor said second recess in registry withsaid hole, wherebyl said key is adapted to engage said first plate alternatively with either said member or said second plate.

19. In a. device of the character described, the combination withn a member of an internal combustion aime, of a plate oscillatory adjacent said member and provided with a transverse hole at a point remote from'its axis otoscillation, a second plate oscillatory ao-axially with the first plate and provided with a recess radially equi-distant iaith said hole from 'the axis of oscillation of said plates and adapted in one position of said Erst plate for registry with said hole, a key reciprocable in said hole and having greater transverse extent Said key being receivable m a recess in registry with said hole, whereby Said key is adapted to engage vSaid first plate alternatively'with either Saidvmember plate, means the independent movement in one direction of said first plate with respectl to said member and to said second plate.

20, In a device of the character described, the combination withan outboard motor provided with reversing mechanism and a relatively stationary member having a recess and a shoulder, of a first plate oscillatory about a given axis and adjacent said mem? ber, said lirst plate being operatively conneeted with said reversing mechanism for the control thereof and beingprovided with a hole radially equi-distant with said recess fromV the axis of oscillation of said plate,

oscillation coaxially with said first plate and provided with a recess radially equi-distant With said hole from said axis and also provided with a shoulder radially equi-distant with the shoulder of said member from said axis, a transverse pin carried byV said first plate and projecting for operative engagement alternatively with the shouldersv of said member or said second plate, anda key com-V prising a ball reciprocable in said hole'and having a diameter greater than the length of said hole and less than the combined length of said hole and one of said recesses, said second 21. In a device of the character described, the combination with a relatively stationary part, and a tiltable motor unit including a vertically movable member, of interlockable elements carried by Said part Sunill said mem-v co-axially with the. l

with

relativelyY stationary .the combination with the -ary member of an outboard plate being manually operable.`

ber and .adapted for engagement and reease upon theV vertical movement otsaid member, said' part being, adjustable to com prise a stop foi-,defining a normal upright position for said unit.

In a device of the combination with a bracket, ot an out'- board motor pivotally connected therewith and including a propeller, supporting member bodily reiprocable vertically, said support being formedfor c11- gagement with; a portion of said bracket upon its vertical reciprocation.

23. In a deviceof the character described, the combination. with a bracket, of an outboard motor tiltably connected therewith and including an engine and propeller, and a support normally conneetingsaid propeller with said engine, said supportbeing guided for rotative movement with respect to said engine and for vertical movement with. re spect to said bracket, and said's'npport and said engine being provided with an interlock releasable upon the vertical movement .of

support, Aand said support-and said bracket being provided with an interlock enga gcable upon the vertical movement of said support for preventing 'tilting movement Aof said motor.

24, In a device of the character described, the combination with the relatively stationary member of an outboard motor, of a propeller support rotatable with respect to said member and provided with diametrically opposite lugs at dilfering levels, a lng relativethe character described,

and a propeller said support for permitting rotation of said i9 ly fixed against rotation and disposedin the Y v pat-h of rotative movement of the lugs carried by said support, and means for producing relative vertical movement of said lugs, whereby said relatively fixed lugv may be disposed alternatively at the level of either of said diametrically opposite lugs.

25. In a device of the character described,

relatively stationmotor, of a propeller support rotatable with respect to said member and provided with diametrically opposite lugs at differing levels, a. lug relatively :fixed against rotation and disposed in the path. of rotative movement of the lugs carried by said support, means forproducing relative vertical movement `of said lugs,

whereby said relatively fixed lug may be disposedalternatively at the level of either of4 said diametricall'y opposite lugs, and a. pawl spaced 'from said- 'relatively lixed lug and resiliently yieldablelrom the path of movement ofthe lugs of-said support, saidpawl being adapted' to co-operate with said relatively ixedlug to .prevent movement in either rotative direction of a rotatable lug engaged with the fixed lug.

26. In a device' of the character described, the combination with a rotatable propeller support provided Y'with diametrically oppo-rA be determinative of its rotative positionv site lugsat diiferentlevels, o f'a relatively fixedv stop disposed in the rotative'path of movement of said lu s and adapted toenage'a lug at the leve thereof, said support ino- 'vertically' adjustable tobring either of the u'gs carried thereby alternatively into."

the horizontal plane of said stop.

' 27. In an outboard motor, the combination with a relatively `stationary member, of a propeller .support rotatab y and axially slidably journaled` therein, a-crank shaft rotatable with respect to said member, a drive shaft aligned with said crank shaft and journaled in said su l j therewith, and a sp ined connection between said crank shaft land said drive shaft andadapted to connect said shafts for simultaneous rotationwhile permitting reiatlve axial movement.

28. In a device of the character described, the combination with a rotatable, vertically movable propeller support-having a portion provided with a peripheral groove, of'a shipper operatively engaged withlsaid groove to control the vertical movement of said support while permitting the free rotation thereof, aplurality of lugs iadially projecting'l from said support at different levels and at like radial distances from the axis of rotation ,of said support, and a relatively fixed stop equidistant with said lugs from the axis or' rotation of sai support, said lugs being selectively engageable with said stop upon the axial movement of said support,

whereby a given lug is brought to the plane ot' said stop.

29. In a device of the character described, thercombination with'a rotatable support, of a plurality of lugs projecting radially from said support and having portions in different planes normal tothe axisof rotation of said support, said' lugs being equi-distant radially from said axis of rotation, and a stop relatively `fixed against rotation about said axis and equi-distant with saidv lugs therefrom, said-motor being constructed to provide for relative movement in' the direction of the- `axis of said support between said .stop and said support, whereby said stop may be selectively engaged with said lugs.

30.' In a device of the character described, the combination with a bracket, of an outboard motor pivotally connected with said bracket and-including av propeller support rotatably and axially movable with respect to said bracket, radially projecting ugs equi-distant from theaxis of rotation of said support and spacedalong said axis in different horizontal planes ,al relatively fixed stop disposed' in the path of rotative movement of said lugs and selectively engageable with `either' uponr the vertical movement of said support,- whereby the position of said support in its path of vertical movement will port for axial movement of'said support and of vsaid support, said surtace being formed to through the engagement of one or the other a'tive' ilpon the vertical movementy of said `support forfengagin said"'support with said bracket 'to lock sai movement with respect to the bracket.

motori against pivotal 31a. In a device of the character described,

thec'onibination with a bracket, of an outboard-j motor pivotally connected therewith for tilting movement and including a rotatably and vertically movable upright propeller support, latch mechanism engageable with said support in one position of vertical movement thereof to define a given rotative position therefor and operative in a diierent position of vertical movement of said support to define a different rotativeCposition therefor, and an interlock between 'said support and said bracket comprising a rearwardly opening bearing block connected with -said bracket and provided with albearing surface concentric with the axis of rotation eater diameter than permit the tilting movementfof said motor, and a complementary bearing element carried by said support. and adapted for interlocking engagement with said block upon the the upward axial movement of said support.

32. In a device of the character described, the combination with an Ioutboard motor casing and a sleeve depending therefrom and rotatably adapted to support av propeller for forward or rearward propulsion, a vertically movable member provided with a radial lug and connected with said sleeve to control the' rotative positionv thereof, and a stationary lug engageable with thelug of said member in one position. of vertical adjustment of said member to dene a given position of rotative adjustment of said sleeve.

33. Ina deviceof the character described, the combination of a sleeve. supported'for rotation on its axis and a propeller directed laterally of said sleeve and adapted to be controlled directionally by` the :rotation of said sleeve on its axis` of a vertically 'movable member connected with said sleeveto control its rotative position, and means for controlling the rotative position of said sleeve in conformity with the vertical vmovement of` said member, whereby in a 'plurality of given positions of vertical adjustment of said mem-l berV said sleeve will occupy a plurality of mersible portions of an outboard motor, said support being mounted for vertical and rota-l tive movement, of means operable upon/.the-

vertical movement of said support to produce v rotation thereof. and stops adapted'to limit `the rotation ofl Said support, said stops being` adapted to define predetermined positionsin the rotation of saidsupport corresponding to predetermined'l positions of veradapted for engagement upon the occurrencev of relative movement axially of s'aidtshaft', together with means' for producing such movement for `the engagement and disengagement ,of such parts.

1 36. In a device of thechar'acter described, the-combination with a bracket and a motor pivoted for tilting movement with res ect thereto, and including a normally upright shaft anda 'housing for such shaft, of concentric interlockab'le parts carried `respectively by said housing and said bracket and adapted for engagement upon the occurrence Cif-relative movement axially of said shaft, togetherwith 'means for producing such 'movement for the' engagement and disengagement of such parts, the arts connected with the bracketbeing forme to providean open sided bearing .with reference to vvvhlch said housing is rotatable and to and from which said motor is freely oscillatable when said parts'are not in engaoement.

` 37. In a device vofv 'the cliaracter described, the combination witha bracket, of an outboard motor pivotallyconnected therewith and including a verticallyadjustable propeller supportrotatable from a given posi- 'i tion upon .vertical movement from a given position, andv means vfor interlocking said support' with said bracket upon the occurrence of said vertical movement.

38. In a device of the character described, the combination with a bracket of an outboard motor pivotallyvconnected therewith laud provided with a drive sha t, a sleeye substantially concentric with said drive shaft and rotatably and vertically adjustable, a lock element carried' by said sleeve and provided with a bearing surface con;

- centric with the axis of said shaft, a complementary lock element connected with vsaid lbracket, said elements being engageableA upon the vertical movement of said sleeve, a relatively fixed part and a latch -member connected with said sleeve'and normally en- -gaged with said'part, s aidV member being releasable from said partl upon the vertical movement of said sleeve.'

39. In a device of the characterdescribed, a shaft housingfrotatable for reversing purposes, a stop adapted to limit the rotative movement of said housing, said housin being provided with a member forme for engagement with said stop, and resiliently adapted' to be pressed aside by said member versal, together with a' 'ment and asecondary such secondiy movement yieldable means` dis' osed adjacent said stop and adapted to cus ion the contact off said member with said stop.

40.J In 'a device of the character described, a shaft housing rotatable for reversing purposes, a stop'adapted to limit the rotative movement 'of said housing, said housingbeing provided with a member formed for engagement with said stop, and resiliently yieldable means disposed adjacent said sto and'adapted to cushion the contact of sai member with said stop, said means compris-l ing a dog formedy with a cam lface and and to confine said member against the stop. so

' Y 41. In a device of the character described,

the combination with a bracket'and an outboard motor pivotally connected to said bracket for tilting, said outboard motor including a prime mover, propulsion mechanism, and a support carrying said propulsion mechanism and adapted for reversal with respect to saidV primemover and for vertical adjustment lwith respect thereto, latch mechanism adapted in one position of said support to secure -it against reversal with respect to said prime mover, and in a dierent vertical movement of said support to release saidsupport', for reversal, and arcuate interlocking partsfmounted concentrically upon the brackeftggand 'supportv respectively and normally disengaged when said support is held by said-latch mechanism a ainst reversal, said parts being positionei for interengagement when said support is adjusted. vertically to the position for reversal. 42.v In a device of the characterdescribed, the 4combination with a bracket and an outboardl motor pivotally connected -to said 105 bracket for tilting, said outboard motor including a prime mover, propulsion mechanism, and a support cari-yin said propulsion mechanism and adapte for reversal with respect to saidprime `mover and for vertical adjustment with' respect thereto, latch mechanism adapted fin one position of said support to secure it vagainst reversal "with respect .tosaid prime mover, and in a different vertical movement of said support to release said support for reversal, and 'arcuate interlocking parts mounted .concentrically upon the bracket and support respectively and normally disengaged when said support' is held by said latch mechanism against reversal, said parts being positioned for interengagement. when said support is adjusted vertically to th osition for ret' er handle for steering movee ement and pro'- vided with connections adapted to transmit A to said support to produce vertical adjustmentthereof.

43. Inaludevice of the character described,

said motor mounted vfo the combination with a bracket and an outboard motor in pivotal 'connection therewith and including a support for submersible parts of said motoxg of substantially concentric lock devices mounted respectively -on said bracket and support and 'adapted for engagement and disengagement upon the occurrence of relative axial movement between said devices; said devices being formed to permit'of the rotation of said support with respect to said bracket when engaged and to secure said motor against pivotal movement with respect to said bracket when so engaged, together With a handle connected with one of said devices and adapted to adjust said devices in a directicn for engagement and disengagement of said devices. l

JAMES A. MOULD.

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