US1396647A - Apparatus for cranking or starting internal-combustion engines - Google Patents

Description

R...A. MILLER-ARGUE. APPARATUS FOR CRANKING 0H STARTING INTERNAL COMB APPLICATlON FILED JULY 12.1920.

USTlO-N ENGINES.

1,39 7, Patented Nov. 8, 1921.

2 SHEETS--SHEET l.

attorney;

APPLICATION FILED JULY 12.1920- USTION ENGINES.

Patented Nov. 8, 1921 2 SHEETS-S HEET 2.

P. A A 79%.

UNITED STATES PATENT OFF-ICE.

noiamvr MILL R-Anson, or EssENpoN, MELBOURNE, vrcronm, A A A AUSTRALIA. AA

arrana'rus'ron cmxme on gramme INTERNAL-COMBUSTION ENGINES;

To all whom it may concern: a a r A Be it known that 1, ROBERT ALEXANDER Mimics-Anson, a subject of the King of GreatBritain and Ireland, and aresidentof the postal district of Ascot Vale, in the city of Essendon,a suburb ofthe cityof Mel bourne, in the county of A Bourke, State A: of Victoria, Commonwealth of Australia, (whose post-office address is 257 A Ascot Vale road, in thesaid postal district of Ascot Vale,) have invented a certain new and use ful Improved Apparatus for Cranking or v Startin At'ernal combustion engine to Internal-Combustion Engines, of which t e following is a specification.

This invention relates to apparatus for. initiallyi turning the crank shaft of an instart the same and its object is to: provide a simple, inex pensiveand effective apparatus particularly adapted for :use EWith the engines of motor vehicles, but also applicable to other internal combustion engines, whereby the engine may be quickly, and easily started without excessive effort by the operator. A

Thefinvention is devoid of electrical and complicated mechanical parts, is not liable to derangement and may be easily applied to existing as well as to' new enginesr Furthermore, if :for any reason it should be necessaryuor desirable to use the ordinary crank handleiin starting thismay be done without A interference withtheparts of the invention The features of novelty are A pointed out in 1 the appended claims.

MReferring: to the drawings which form A partof: this specification :-'-A- A A A A 1 A :Fig. 1 is a viewf of 1a pinorastud wheel.

catch block, provided eFigl2 isa rear view of a catchwheel.

Fig. 3 is a detail view showinga cushion carried byAthe limit stop of a catch block.

Fig. 4: 1s a detail view showing a modified with a roller 'anda fixedvcatch. r y a l l r Fig. 5 is a detail View showingia hinged hatchn A A viewlooking at the front or opposlte side ofthe catch wheel seen in Fig.

2 :and showingyalso the pin or stud wheel one of the pins ofwhich is engaged by the catchkof the. catch wheel which has been partially rotated by the pull line.

Fig. 7. is aAsplanAof Fig. 6. A, 7

speciflcation of LettersAPatent. Patented NOV. 8, 1921 Application filed July 12, 1920. semi no. 395,647. it

Fig. 8 isfasection taken on line A--A of 1 1%. 2, the pin wheel being omitted. b1 9 1s a perspective view of the catch Fig. 19 is a sectional detail view showing the means of attaching the pull line to the ably inclined to act as a fan for cooling the engine. l

Projecting from one side of the pin wheel, near its outer periphery, are a series of pins or studs 6 of any suitable numberland spaced at equal distances apart around the wheel.

Garried'by the frame of the engine or the chassis 7 of the motor vehicle is a stationary central sleeve 8 around the periphery of which areball bearings 9. The crank shaft 2 passes through the sleeve 8. The 3 sleeve 8 is provided .iwith shoulders 10 by which it is locked against rotationonthe chassis A7. The sleeve is further provided with an enlarged collar 12 provided with studor screw holes 11 to accommodate screws by which the sleeve 8 is secured to the chassis 7. Formed in one end of the sleeve 8 is a plurality of spring adjustingxrecesses indicated at 13. Secured to the sleeve 8 and closing the recesses Mounted upon the sleeve 8 is a manually rota-ted element comprising having a boss 16 Radiating from the boss 16 is a series of spokes 17 carrying at their outer ends a rim 18. Formed in the outer surface of the rim-18is a circumferential groove indicated at 19. catch wheel does not form a complete circle but has a section removed forming a gap, indicated at 20, between its two ends. Formed through the rim 18 at "any A coin venient point is a pull line hole indicated at 21. The said hole passes through therim 18 and through one of the spokes 17 as shown in Fig. 6. Carried by the spoke through which the hole 21 passesis a retain- 13 is a holding ring 1-1 retained by screws 15 "or' the like. A

a catch wheel The rim of the ing' plate 22secured by screws or the like. A.

60 1 turned and the engine started.

' catch wheel engage the spoke 17 carrying the hinge pin- 23, isa limit stop 25. The outer or free end of the catch block 24 carries a catch 26 which may be integral with the catch block or hinged to a hinge pin 27 carried therebv, as seen in Fig. 5. The catch 26 is provided with a straight or substantially radial inner face 28 and a curved or inclined outer face 29. Or, as shown in Fig. 4, a roller 30 may be rovided in lieu of the outer face 29.

he catch block 24 is also provided at one side with an inclined pathway 31 .the inner end of which is provided with a recess 32 to accommodate a lifting roller hereinafter described. Adjoining-the recess 32 and at the extreme inner end of the inclined pathway 31 isaa limit stop 33. This may beprovided with a rubber cushion 34 or the like asseen in Fig. 3..

The catch block. 24is normally held inward by a radially disposed spring 35 which is attached atone end to the. catch block or a boss, thereof and at its other end to the boss 16 of the catch wheel.

The catch wheel is also provided with a return. spring 36. The spring 36 is preferably of a helical nature and coiled within the stationary sleeve 8. Its'first end 37 is accommodated in one of the spring adjustingre'cesses 13 and retained therein by the holding. ring 14. Its second end 38 passes through 2. lug 39 carried by a cross piece 40. The cross piece 40 is provided with a free axle hole and is Secured to thecatch wheel by screws 41*0r the like.

assing-through the pull line hole 21 in therim 18 of the catch wheel and secured bv theretaining plate 22 is the first end 42 of a pull line' 43. The pull line passes around the groove 19 of the rim 18 of the catch -wheel and may then be led off by suitable guides and pulleys to the dashboard of a motor. vehicle or to any other convenient point. It is provided with a suitable handle or the like.

The stationary sleeve 8 is provided with an'extension'or arm 44 carrying a pin or axle 45. Mounted on this axle isa catch lifting roller 46.

In operation a tug on the pull line 43 causes the catch wheel to be partially r0- tated thereby causing the inner face 28 of the catch 26'to engage one of the outstanding pins 6 ofthe' pin or stud wheel. The pin wheel being fixed to the crank shaft or an extension thereof causes the shaft to be A As the pin wheel rotates with the'crank shaft the outstanding pins 6 successively engage the curved outer face 29 of the catch wheel and lift the catch block24 whichthus allows the gagement of the pins 6 with the pins 6 to pass. This operation continues until the return spring 36 has brought the catch wheel back almost to its original position after the release of the pull line. The roller 46 on the arm 44 now engages the inclined pathway 31 of the catch block 24 thereby causing the catch 26 to be lifted out of the path of the pins 6 of the rotating pin wheel.

The cushion 34 absorbs the shock when the limit stop 33 strikes the roller 46. The encurved outer face 29 of the catch 26 when the catch wheel is returning to its initial position also reduces the impact. It will be seen that the roller 46 rests within the recess 32 of the inclined pathway 31 of the catch block 24. The limit stop 25 prevents the catch block 24 falling beyond a predetermined distance under the influence of the spring 35 when the catch wheel is rotated by the pull line 48. With the helical spring 36 arranged as shown in the drawings it is practically impossible to overstrain the spring by an excessive pull upon the pull line as the spring coils are of sufiicient diameter and are sufiiciently spaced as to allow for necessary strain.

I11 the case of a back fire which is engaged with the and the catch 26 cannot pass the latter. The catch wheel is then turned in the reverse direction until the inclined pathway 31 of the catch block 24 engages the lifting roller 46 and causes the catch to be lifted out of the path of the pins 6.

aving now described my invention what I claim asnew and desire to secure by Letters Patent is 1. An improved apparatus for starting internal combustion engines, comprising a stud wheel secured to the crank shaft and having a plurality of outstanding studs, a stationary sleeve, a catch wheel mounted upon the sleeve and having a circumferential groove, a pull line secured at one end to the catch wheel and passing around the groove, a catch block carried by the catch wheel, a lifting roller engaged by the catch block, a helical spring disposed within the stationary sleeve, andmeans for adjusting the spring.

2. A starting device for internal combustion engines, comprising a stud wheel secured to the crank shaft having a plurality of laterally projecting studs thereon, a stationary sleeve secured to the engine frame, a catch wheel rotatable on the sleeve and having a circumferential groove, a pull line secured at one end to the catch wheel and passing around the groove, a catch block carried by the catch wheel, said block being pivoted at one end to the catch wheel and formed with a catch at the other end adapted to engage the studs on the stud wheel,

the pin wheel inner face 28 9 means for lifting the catch block out of enand passing around the groove, a catch block gagement with the studs, and resilient carried by the catch Wheel, said catch block 15 means engaging the stationary sleeve and the being pivotally connected to the catch Wheel catch Wheel for normally holding said catch at one end and formed with a roller receivwheel in one position. ing recess, a cam face, and a catch, and a 3. A starting device for internal combusroller carried by the stationary sleeve, tion engines, comprising a stud wheel sewhereby in one position, the catch block will 20 cured to the crank shaft having a plurality be held in inoperative position when the of laterally projectin studs thereon, a staroller is seated in the roller receiving recess. tionary sleeve secure to the engine frame, In testimony whereof I afiix my si nature. a catch wheel rotatable on the sleeve and R. A. MILLER-AR UE. having a circumferential groove, a ull line Witness:

having one end secured to the catdil Wheel CECIL MCPLESTED.

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