US1382955A

US1382955A - Outboard-motor for boats

Info

Publication number: US1382955A
Application number: US376946A
Authority: US
Inventors: Clementson Johan Ferdin Julius
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-04-27
Filing date: 1920-04-27
Publication date: 1921-06-28
Anticipated expiration: 1938-06-28

Description

1.1 JQCLEMENTSON. OUTBOARD MOTOR FOR BOATS.

APPLICATION FILED APR-271 i9 20.

Patented June 28, 1921.

2 SHEETS-SHEET I. I

Invenl'or' JZE'J Clemeni'son 5 LIT/f y .I. F. J. CLEMENTSON.

OUTBOARD MOTOR FOR BOATS.

APPUCATION FILED APfLZT, r920.

Patented June 28, 1921.

2 SHEETS-SHEET}.

55 I two

bevel gear wheels

4 and 5, each of which omino- STATES PATENT ounce. I

com rnannwmn In ros n, or muo, swarm.

OUTBOARD-HECTOR FOB BOATS.

To all it may concern:

Be it knownthat I, Jormn Fnnnmmn J mos Crimmn'rsoiv, a citizen of the Kingdom of Sweden, residing at Mahno Sweden, have invented a new and useful lmprov ment in Outboard-Motors for Boats, of which the following is a specification.

My invention relates to an improvement in outboard motors for use in smaller boats, wherein the motor shaft is cared to the propeller shaft by means of a ouble bevel car, so that the propeller may be reve by sliding the gear wheels placed on the motor 'shaft or an extension thereof, said gear possible to handle the machinery in a wrong wheels alternately being .brought into gear with a gear wheel on the propeller shaft.

Such a reversing device, althoughfibeing of.

a simple and attractive construction, has however a drawback therein that the reversing or starting of the propeller when the motor is runmng takes place abruptly and with a considerable shock when the gear wheels are thrown into ear, and this circumstance causes a rapi wearing or a breaking of the gear if the motor is not slowed down when the reversing takes place.

In itself it is troublesome and less attractive and combined with the common tiller in such a way, as is explained below, that the reversing cannot take place before the coupling is disconnected. Thus it is imway, which may be risky to the gear. The invention is illustrated in the accompanying drawings wherein Figure 1 shows the outboard motor in verticalsection. Fig. 2 shows a sectional view of the locking device for the tiller and Fig. 3 shows a side view of the said tiller and enacting parts of the machinery. Fig.- 4 is across section on the line 1-4 in Fig. 3 and Fig. 5 a similar section on the line 5-5 in Fig. 1. With reference to the drawings 1 indicates the motor, and 2 the crank shaft of the same. 3 is a shaft placed in the prolongation of the crank shaftand carrying .pe'ller the shaft 3 must Sp fi a of t hunt- Patented June 28, 1921 Application fled s in :7, 1920. Serial Io. mp4s.

by sliding the shaft Balternately-canbe" brought into gear with the bevel gear wheel the propeller y shdmg the shaft 3 an the

gear wheels

4, 5 the rotary motion of the r be reversed, and it may also be the gear wheels 4,5' are brought into an intermediate position, in which neither of them is in engagement with the ear wheel 8. For reversing or sto ping o the pro or downward and this movement is effected by means of the tiller-9, said tiller bein made to turn around a in gtlO and locke to a quadrant 11, whic together with-saidpin is fixed to-a casing 12v surrounding the e moved upward opeller may; stopped if i shafts 2 and 3 and turnable around saidshafts.

According to my invention the shafts 2 I and 3 are connected with each other by means-of a friction couplin thrown into action by the tiller. For the pur ose the end of the crank shaft 2 is provide with a prismatic extension 13 upon which a. nonrotatable sleeve 14 is slidably mounted said sleeve at its lower end being provided with with a cellar or outer sleeve 18, which partly surrounds the inner sleeve 14. Between the bottom of the cup 16 surrounding the flange 15 and the inner end of a concentrical bore within the sleeve 14 a spiral spring 19 surrounding the shaft 3 is arranged, said spring tom of the cup 16. Between the flange 15 and the cover 17 a number of annular friction plates 32 is arranged, said plates being alternately provided with lugs penetrating into longitudinal grooves in the'inner side of the cup and other lugs penetrating into similar grooves in the outside of the sleeve tion plates connected with the sleeve in the same manner do not extend entirely to the cup and may be rotated in relation to said cup. By reason of the spring 19 all of the plates however are pressed together between e 15. On the vshaft "3 beneath the sleeve 14 a cup 16 is fixed the upper end of which is closed by a cover plate 17 connected normally tending to force the'inner sleeve 1d and the flange 15 upward from the botthe flange and the cover 17 and thus the pzilritsh' described form a friction coupling, V w c maybe disconnected by releasing the spring pressure. In order to obtain a good bearing the shaft 3 however extends wlthin the sleeve 151 (Fig. 1) but it is freely rotatable within the same and thus it does not always partake in the rotary motion of the said sleeve 14:, which rotates constantly as I 10 lover .or

9 is disconnectibly locked to 'the quadrant 11 by means of a bolt 22 (Fig. 2) connected with a link 23,-which is acted upon by a grip 24 hinged to the outer end of the tiller;

For disconnecting the coupling a ring 25 is fotatably but not slidably mounted on the the fork shaped arms 27 of

levers

27, 28

sleeve 14 said ring being provided with extending pins 26 suitably placed right above the pins 20. The pins 26 are inclosed by Fig. '3) pivotally mounted upon pins 29 ed to the. tiller 9'. The other arms 28 of the levers are hinged to a U-shaped bar 30 connected with an extension 31 of the link 23, said extension being arranged on the op pgsite side of the bolt 22 (Figs. 3 and 4). e device described works in the followmanner a 1 y rovided that the motor and ropeller are at full speed and the difli'erent parts of the machinery are in the positions shown in Fig. 1 and that reversing or stopping of i the propeller is .to be carried out,'said r'e versing or stopping must be efiected by raising the tiller to one of the positions indi cated by the dash and dot lines shownin the drawing. For carrying out this movement of the tiller the bolt 22 must be disengaged and forthis purpose the grip 24 'must be ressed against ereby however the ,extension 31' the tiller, i.- e. upward. andthe bar 30 cause. the levers '27, 28 td 'be turned in such a way that the pins 26 are pressed downward. The ring 25 thereby presses the sleeve 14 together with the flange 15 downward against the pressure of the spring 19. Thus the coupling is positively disconnected before any vertical movement of .the tiller 9 is possible .and therefore it is impossible to omit the disconnection ofthe coupling.

Itjis not necessary to .iise a frictioncoupling, as the coupling also may be provided with claws in the usual manner, but a fricthe ' tudinal tion coupling is however to be referred as I it renders a softer starting of t e propeller after the reversing, and it is not necessary to carry out all of the parts of construction exactly in the manner described above or shown in the drawings as they may also be changed for equivalent means without digresslng from the scope of invention.

Having now described my invention and in what manner it is to be performed l dsclare that what I claim is: a 1. Outboard motor for boats comprising a reversible double bevel gear for transmitting the rotary motion of the motor to' the propeller, a shaft slidably mounted in the prolongation of the motorshaft and carrying two of the bevel gear wheels of said gear, a disconnectible coupling between said shaft last mentioned and the motor shaft and means for connecting the disconnecting device of said coupling with a locking device for the reversingtiller in such a way that the coupling: is disconnected automatically at the disengaging of said locldng device.

2. Outboard motor for boats comprising a reversible double bevel gear for transmitting the rotary motion of the motor to the propeller, a shaft slidably mounted in the prolongation of. the motorshaft and carry: ing .two of the bevel gear wheels of said gear, a disconnectible friction coupling be-.

tween said shaft last mentioned and the motor shaft and means for connecting 'the disconnectingdevice of said coupling with a lockingdevice for the reversing tiller in such a waythat the coupling is disconnected automatically locking device.

3. Outboard motor of the character described comprising a motor, a propeller and a disconnectible friction coupling between the motorshaft and theshaft placed in its prolongation, said coupling consisting of an inner sleeve slidably but not rotatably mounted on the motor shaft and provided with a flange, a cup fixed to the extension shaft and provided with a cover, and an outer sleeve fixed thereto, said cup and last mentioned sleeve partly surrounding .the inner sleeve and the flange thereon, a number of annular friction p of the cup and provided with lugs alternately intruding in corresponding longives at the inside of thecup and the outs de of the inner sleeve, and a spring placed between the cupand the inner sleeve geth'er. Y

4. Outboard motor of the character -described comprising a disconnectible friction at the disengagingof said ates placed between .the flange of the inner sleeve and the cover r and tending to press the friction plates tobetween the motor shaft and a 1 g r sha p aced m its prolongation, said cou-e pling consisting of an inner sleeve rovided with a flangeand an outer sleeve ed to a cup surrounding said flange and a number with a flange and an outer sleeve fixed to a cup between a cover of which and said flange is arranged a number of friction plates acted upon by a spring tending to press the friction plates together, both sleeves being provided with rings rotatably but not slidably mounted on said sleeves, the ring on the outer sleeve being hinged to the tiller and the ring on the inner sleeve to levers carried by the tiller and connected by means of a U-shaped bar hinged to an extension of a link for acting upon the looking bolt of the tiller by means of a lever hin ed to the outer end of said tiller and to sai link. i

6. An outboard motor for boats, comprising a motor, a propeller, a reversible connection for transmitting and reversing rotary motion from the motor to the propeller, and a disconnectible friction element. interposed between the motor and reversible connection for automatically disconnecting the propeller from the motor during the reversing of said reversible connection.

7. An outboard motor for boats, comprising a motor, a propeller, a reversible connection for transmitting andreversing rotary motion from the motor to the propeller, a disconnectible friction element interposed between the motor and reversible connection, and means for operating said connection for reversing the rotary motion being transmitted, said means automatically disengaging the frictionelement.

the propeller and adapted to transmit rotary motion thereto and to reverse the direction of said motion, a disengageable friction member connecting the shaft with the motor and means for operating said elements adapted to simultaneously disengage said friction member.

10. An outboard motor for boats, comprising a motor having a crank-shaft, a propeller, a shaft slidably mounted in line with said crank-shaft, a disengageable friction element connecting the shaft with the crankshaft, elements adapted to transmit rotary motion to the propeller, said elements being further adapted to reverse the motion of said propeller, and operating means for actuating the elements to reverse the direction of the propeller, said means having connected therewith means for simultaneously disengaging the friction element when the operating means is actuated to reverse the direction of the propeller.

11. An outboard motor for boats comprising a motor having a crank-shaft, a propeller, a shaft slidably mounted in line with the crank-shaft, a disengageable friction clutch member including a pair of sleeve members, one secured to the crank-shaft, the other secured to the shaft, a series of plates carried by each adapted for frictional engagement, means adapted to operate the sleeves to engage or disengage said disks,

elements mounted on the shaft adapted to transmit rotary motion to the propeller, said elements being adapted to be operated to reverse the direction of the propeller, and means for operating the elements, the lastmentioned' and the first-mentioned means being adapted to operate together. 1

12. An outboard motor for boats, comprising a motor having a crank-shaft, a sleeve slidably mounted on the end portion of sa1d crank-shaft, a second sleeve mounted over the first sleeve and extending beyond the end of the first sleeve, a series of disks, al-

ternate disks being mounted on each sleeve and adapted for frictional engagement, re-

silientmeans interposed between the sleeves acting normally to bring the disks into frictional engagement, a shaft connected with the second-sleeve, a propeller, elements connecting the shaft with the propeller for transmitting and reversing rotary motlon thereto, a lever connected with the elements and connections between the lever and the sleeves, whereby when the lever isoperated will at the same time disengage the disks between the sleeves.

to reverse the direction of the propeller, it

In testimony whereof, vI have signed my name to this specification in the presence of two subscribing witnesses.

JOHAN FERDINAND JULIUS CLEMEN'I'SON. Witnesses A. L. HEDENSHRE, J. P. Wnronn;