US1557253A - Outboard motor for small craft - Google Patents

Description

Oct. 13, 1925. 1,557,253

L. J. JOHNSON OUTBOARD MOTOR FOR SMALL CRAFT Filed Jan. 5. 1924 2 Sheets-Sheet 1 e o o f ff /4 o Q j; /0 /6 a /7 INVENTOR.

A TT ORNE Y.

Oct. 13 1925'- L. J. JOHNSON OUTBOARD MOTOR FOR SMALL CRAFT Film! Jan. 1924 2 Sheets-Sheet 2 l I irmr anullirile &

INVENTOR'. 060a J zzsozz- ATTORNEY.

Patented (let. I 13, 1925;

UNITED S'TFATES PATENT OFFICE.

LOUIS J. JOHNSON, or rsHAwAKA, I DIANA, nssrenon. T JOHNSONBROS. ENUJ- i NEERING conronarroiv, or s'oUrH BEND, INDIANA.

. OUTBOARD MOTOR Fort SMALL CRAFT.-

Application filed January 5,1924. ,Serial No. 684,563.

To all whom it may concern.

Be it known that I, LOUIS J. JOHNSON, a citizen of the United States, residing. at Mishawaka, in the county of St. Joseph and a State of Indiana, have inventedcertain new and useful Improvements in Outboard Motors for Small Craft, of-which the following is a specification.

The invention relates to outboard motors for small craft, and has for its object to pro- 'vide in combination with a pivotally mounted motor having a depending tubular casing, which casing is rotatably mounted in a supporting sleeve at its upper end, and provided with a sleeve intermediateits ends having interlocking means cooperating with a stationary member, means whereby water from a pumpadjacent the lower end of the tubular casing will be conducted through a pipe, which pipe extends through sleeves between their inner and outer peripheries where the pipe will not interfere with the rotation of the motor and tubular casing.

A further object is to provide a discharge pipe from the waterjacket of the motor,

which pipe extends downwardly through the upper supportingv sleeve of the tubular casing.

A further object is to provide 1n combma- =tion with a pivotally mounted and vertically movableoutboardmotor, said anotor being I supported on a sleeve adjacentits upper end carried by the drive shaft casing, and provided with a sleeveintermediate its ends rotatably-mounted between slotted arms having a member cooperating with interlocking means carried by the sleeve, a water supplypipe for the water jacket of the motor,"

which supply pipe is disposed outsideof the 4 tubular drive shaftsleeve, thereby allow ing a maximum diameter of drive-shaft and L toextend the water supply pipe through the v sleeves carried by the tubular drive shaft I sleeve, in a manner whereby they will not interfere with the rotation of the motor and tubular drive shaft sleeve carried thereby.

With theabove and other objects in. view I the invention resides in the combination and arrangement 'of parts as heremafter set may be made within the scope of what is claimed without departing from thespirit of' the invention.

In the drawing:-

Figure 1 is a .sideeleva'tion of an out board motor, showing the watersupply pipe and-discharge pipe applied thereto.

Figure 2 is a vertical longitudinal sectional View through themotor and drive shaft tubular casing and -the supporting, means for the motor. I

Figure 3 is a horizontal sectional view taken on line 3+3 of Figure 2.

-Figure 4 is a modified form .of sleeve showing a horizontal section thereupper Figure -5 is a horizontal sectional view taken on line 5- of Figure 51. i L

' Referring to the drawing, the-numeral 1' designates the water jacket ofthe motor, 2 a water supply pipe connected to said acket and 3 a water discharge pipe connected to said jacket, through which pipes water passes to and from the water jacket of the motor for cooling purposes. The casing 1 is supported on a vertically disposed rotatable sleeve l,Wl1'iCl1 sleeve is brazed or otherwise secured to the upper end 5 of the. tubular drive'shaft casing 6, consequently .rotates with the casing 6 during the directional steering ofthe boat by the rotation in a horizontal plane of the motor. Sleeve 4 is rotatably mounted in a split sleeve '7, Which last named sleeve ispivotally connected at 8 to a bracket 9, which is'secured -to a boat 10,therefor'e it will be seen that V the motor as a whole is pivotally movable in a horizontal plane, as well as pivotally movable in a'vertical longitudinal plane for casing 6v and-iis provided with segmentally shaped flanges 1.4;, which flanges upon a rotation of the motor, when the casing 6 is in a vertical'position, overlie the flanges'l5 of a segmentally shaped plate 16, which. is ad'- tally shaped arms 17, which prevent the motor from pivotal movement in a vertical plane upon reversal of the motor as a whole, for instance when backing.

It will be seen that if the water supply pipe 18, which leads from the pump 19,

,adjacent the lower end of the casing 6, is disposed outside of the sleeve '12 and the steering purposes, or for raising the propeljustably mounted between slotted segmenthe sleeves 1 and 12.

sleeve 4, it will interfere with the rotation of the motor by engagement with the supporting means for the sleeve 7, and the seginentally shaped plates or guide arms 17. On the other hand if the pipeis disposed within the tubular casing 6, said casing would necessarily have to be of considerable diameter or the drive shaft. disposed therein relatively small diameter. To obviate the above difficulties the pipe 18 extends through the sleeves 12 and 4 intermediate their inner and outer peripheries, preferably through vertically disposed apertures 20' where the pipe will not interfere with the rotation of the motor by the supporting members for Although apertures 20. have been described, it is obvious that vertically disposed channels 20 may be used as shown in Figure l, if desired, however in either case the pipe 18 is disposed between the inner and outer peripheries of the sleeves 4 and 12. Supply pipe 2 is connected at 21 to the upper end of the sleeve 4 where it will receive its supply of water from the pipe 18.

'The discharge pipe 3, which leads from the water jacket of the engine is connected 'at 22 to the upper. end of the sleeve 1 and discharges into a pipe 23, which extends through an aperture 24 in, the rear side of the sleeve 4:, said pipe 23' preferably e1;- tends downwardly from the lower end' of the sleeve l where its discharge end 25 will be disposed below the water level, but in position where it will not interfere with the rotation of the motor and its casingfi.

From the above it will be seen that a water supply and discharge pipe is provided for water jackets of out-board motors,

which motors are pivotally mounted in 'supporting sleeves, and the pipes disposed in a position where they will not interfere with the free rotation of the motor in its supporting bearing. It willalso be seen vthat the pipes will not only allow fre'e rotation of the" motor, but at thesaine time will also allow the tubular casing to be of a' niiiiimum diameter and a maximum diameter of driveshaft'to be used within the eas- 1ng,6.'

is claimed as new and useful is 1. The combination Wlilhilll outboard motor having a tubular drive shaft casing, a

locking sleeve carried by the outer side of said drive shaft casing, said sleeve being rotatably mounted in a segmentally shaped plate, a water jacket carried by the motor, a pump rotatable with the shaft casing and disposedbeneath the sleeve, of a pipe con- The invention having been set forth what nection between the water jacket and the pump, said pipe connection extending through the sleevebetweenthe inner and" 3. T he combination with an outboard mo-.

tor, a drive shaft casing carried by said motor, a sleeve adjacent the upper-end of said casing, said sleeve being rotatably mounted in asupporting bracket, a second sleeve'intermediate the ends of the casing and rotatabletherewith, fixed interlocking means for said last named second sleeve, a pump carried by said casing, a water jacket carried by the motor, of a pipe connection betwenthe pump and the water jacket, said pipe connection, extending through the sleeves carried by the casing.

4. The. combination with an outboard'mo- ,tor, a drive shaft casing carried by said mot'or,.a sleeve ad acent the upper end. of

the casing, said sleeve being rotatably mounted in a supporting bracket, a second sleeve intermediate the ends of the casing ried by the motor," of a pipe connection between the pump and the water jacket, said pipe connection extending through the sleeves-carried by the casing, a discharge pipe connected to thewaterjacke't, said discharge pipe extending downwardly through the upper sleeve.'

androtatable therewith, fixed interlocking means for sa d last named 'sleeve,,a pump .carried by said casing,-a water acket'car- 5. The combination with an outboard mo-v tor, a drive shaft casing carried by said motor, a sleeve carried by said casing and rotatable therewith, a second sleeve in which said first mentioned sleeve is rotatably mounted, a motor carried-by said casing and having a water jacket,- a Water intake pipe carried by said motor, a water discharge pipe carried by said motor said pipes extending through said first mentioned sleeve outside the casing. I

' In testimony whereof I afiix my signature.

LOUIS J. JOHNSON. M

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