US959153A

US959153A - Starting device.

Info

Publication number: US959153A
Application number: US53733410A
Authority: US
Inventors: William Mckissick
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-01-10
Filing date: 1910-01-10
Publication date: 1910-05-24
Anticipated expiration: 1927-05-24

Description

W. MGKISSIGK.

STARTING DEVICE.

APPLICATION FILED JAN. 10, 1M0.

959, 1 53. v Patented May 24,1910.

2 SHEETS-SHEET l.

W. MOKI$SIUK.

STARTING DEVICE.

AEPLIGATION FILED JAN 10 1910.

Patented May 24, 1910.

2 SHEETS-SHEBT 2.

Q Q I wits wax.)

WILLIAM MoKISSICK, or cannrs'rn, rows.

sranrzns nnvrcn.

specification of Letters Patent.

Patented May 2st, idiidn Application filed January 10, 1910. Serial No. 537,334.

To all whom it may concern: I

Be it known that 1, WILLIAM .MoKrs- SICK, a citizen of the United States, residing at Carlisle, in the county of Warren and State of Iowa, have invented a new and use ful Starting Device, of which the following is a specification. This invention relates to starting devices for internal combustion engines characterized by a spring motor, the spring being Wound up from the engine while the latter is in motion. Initial starting of the engine is efiected manually, after which a device for winding up the spring is thrown in gear with the engine shaft.

it is the object of the present invention to provide a device of the kind stated which is simple in construction, and thoroughly reliable in operation, and also to provide means for automatically throwing the spring winding nieans out of gear at the proper time to prevent overwinding, and furthermore, to automatically throw said means into gear after each starting, so that the spring may "be again Wound up, and ready for the next starting of the'engine.

With these objects in View, the invention consists in a novel construction and arrange ment of parts to be hereinafter described and claimed, and in order that-the invention may be fully understood, reference is had to the'accoinpanyi drawings, in which- Figure 1 is a-pn View of the device. Fig. 2 is an elevation of the mechanism for looking the spring. Fig. 3 is a longitudinal section on the line 3-3 of Fig. 1. Fig. i is a transverse'section on the line 1- of Fig, 1.

The invention may .be applied to any internal combustion en'gine, either stationary or portable, the drawing showing it applied to the engine of an automobile, apprtion of the frame of the latter being indicated at 5. Afragment of the engine cylinder is shown at-6, and the crank shaft at 7. The crank shaft is .fitted'with the usual starting hand crank 8.

On the frame 54s mounted a casing? 9 which incloses a spring 10 coiled: around a shaft 11, one end of the spring madev fast to the casing, and the other end to the.

' shaft, so that upon winding I up the sprirm,

and mleasing'the absinthe latter will be I rotated. The shaft ll'is supported in suitable bearings carried the frame of the machine. On the shaft 11 is made fast a. ratchet disk 12 which is engageable by a pivoted pawl '13, mounted on the trainee, this paw and ratchet mechanism being provided for locking the shaft 11. The edge of the pawl 13 is formed with a shoulder 14: which is engageable by one end of a lever 15 pivoted at 16 to the frame 5. The other end of the lever is engageable by as'tem 17, which stern upon being disengaged from, the lever, releases the pawl 13 so that the latter may swing away from theteeth of the ratchet disk 12 thus releasing said ratchet disk, and unlocking theshaft 11 so that it;

in' mechanism extendin to the. drivers g a:

seat so as to be within easy reach.

The herein described spring motor is employed for starting the engine, the shaft 11 of said niotor being operatively connected to the crank shaft 7. meshing spur gears 18 and 19, the former being on the shaft 11 and the latter on the shaft 7. A frictiongearing, a sprocket and chain or any other suitable form of gearing may be substituted for the spur gearing shown. The gear-19 is loose on the shaft 7, a suitable clutch mechanism .20 being provi ded for locking said gear to saidshaft. A lever or other device for throwing the clutch extends to the drivers seat. The gear 18 is fast on the shaft 11, in View of which it will be evident that the rotation of said shaft is transmitted to the shaft 7 when the gear 1 9 is locked thereto.

The drawings show In order that the springlt) may be Wound a miter gear 21 which is in mesh With-a simi .lar gear '22 on a shaft 28 extending transversely of the crank shaft 7, On-the'shaft23 is also fast a worm wheel 24 adapted to mesh with a worm 25 fast en the crank shaft 7, The shaft 23 is mounted for-swinging movement towanl and from the crank shaft 7 so that the worsn wheel 24 may be thrown in gear with the worm 25, or disengaged therefrom. .When in gear, the motion of the crank shaft is ltran nitted to the shaft 23, and frem the datter )Sd'lflfi to the shaft 11 loo through the gearsfil-and 22 thegears being :se arnangedithatwthe shaft ll will :be rotated n :a -d'mgeotion to up the spring .16

The shaft 23 is supported in a bearing having an arm 27 which extends around the gear 22 and is pivotally mounted on the shaft 11. .By thus mounting the bearing, the shaft 23 may be swung as herein de scribed.

The worm wheel 24 is mounted on that,v end of the shaft 23 adjacent to the free end; of the bearing 26, and this end of the shaft is formed with a screw 28 which is threaded" through a nut 29 working between guides 30 mounted on a portion 31 of the frame of the machine, said nut traveling back and forth between the guides when the shaft v23 is ro- I tated. The screw 28 causes the nut to travel as stated, the guides 30 preventing rotation of the nut. The opposite faces of the guides 30 are formed with a groove 32, and-the opposite sides of the nut are formed with tongues 33 extending into said grooves. The gui cs 30 are located on one side of the. cr'ahk sha-ft 11, and the grooves 32 are inclined in the directionof said shaft, so that when the nut 29 is traveling, toward the crank shaft, the shaft 23 will swing downwardly in the direction of the crank shaft, to engage the.

worm wheel 24 with the worm '25. When the nut 29 travels in the oppositedirection, the shaft 23 is elevated, and the worm wheel is then disengaged from the worm. The groove 32- forms an inclined shoulder 34 against which-the tongues 33 are pressed by a flat spring 35 secured at one end to a' bottom portion 36 connecting the guides 30. The spring 35 is of sufficient strength to hold the 'shaft23 and the parts carried thereby in elevated position when the nut 29 has taken the position in which the worm wheel 24 is disconnected from the worm 25. '-In operation, the initial starting of the crank shaft 7 is effected manually in the usual manner by means of the hand crank 8-. The shaft 11 will also be released so that the spring 10 may unwind. The nut 29 is '50 positioned on the screw 28 that the worm wheel 24 is now in mesh with the worm 25, in order that the spring 10 may be wound up when the engine has started. The winding gear continues to operate until the spring '35 and nut 29 have elevated the shaft 23 to disengage the worm wheel from the worm?" The arts will be so designed and dimensioned that this takes place when the spring has been wound to the propertension, thus preventing} overwinding. The lever 15 is released so 'that' the pawljand ratchet mechanism will automaticallylock the shaft '11. The spring now being wound up, the device is ready totstart'thaengine after it has stopped and ill] is desired to again start. the same. This is effected by releasing the shaft 11 in t'he manner already. described and by locking the gear 19 to the crank shaft 7 by i means of the clutch 20, the motion of the I es'shaft 11 beingthus transmitted to the crau k ishaft through the gears 18 and 19. This 'motion of the shaft 11 is also transmitted by the

gears

21 and 22 to the shaft 23, the "latter shaft turning in a direction to cause ithe nut 29 to travel down the inclined shoull der 34 toward the crank shaft, whereby the.

shaft; 23 is lowered, and the worm wheel 24 is again engaged with the worm 25. The spring 10 is new again wound up, and the winding mechanism is disconnected from the crank shaft at the propertimeinthe manner already described. The spring 35 is made fast'at its end which is nearest the shaft 7 and the portion 36 is spaced a sufiicient distance from the shoulder in order that the nut 29 may drop when it reaches this part of the spring, and then lower the shaft 23 sufiiciently to engage the worm Wheel with the Worm. The spring has sufficient strength to lift the shaft and disengage the worm wheel and w orm when the directionof travel of the nut is reversed and it reaches the freeportion of the spring, the latter then suddenly throwing the shaft upwardly so as to quickly disengage the worm wheel and worm.-

The device herein described is simple in construction, and highly efficient in operation. It can be readily-applied to any internal combustion engine, either stationary or portable, without "altering or modifying. the structure thereof.

The preferred embodiment of the invention has been shown and described, but it is to be understood that variouschanges in the 00 Y winding device and the shaft; said gearing including a worm on'the engine shaft, and

a worm wheel ;.a support for the worm wheel shaft mounted for swinging movement toward 'and from the worm to engage said worm-wheel with the worm, and to disenf 1 5 gage the same; and means for swinging said support.

2. In a starting device of internal combustion engines, the combination with. the engine shaft; of a spring motor; a driving no connection between the motor and the shaft;

a clutch in said connection; a winding device for the spring; a gearing'between said winding device and the engine shaft, said gearing including a worm on the shaft, and a worm wheel in mesh therewith; ashaft carrying the worm wheel; a support for the shaft mounted for swinging movement -to-' .Ward and from the w'ormto engage the dis-.

engage the worm wheel; ascrew on the ee lee .3. Warm.

in stefing device fer internal} combuetlen engmes the cembmatlen "1th the engine shaft; of a spring meter; e driving eennectien between me meter and the shaft;

clutch in said cenneciion; a, Winding device fer the spring; a gearing between said Winding device and the engine shaft, said including :2.v worm an the shaft, and :2 were; wheel in mesh therewith; a shaft carrying eke Worm wheel; a support for the Worm wheei shaft ggivetafly mountefi at (me of iis ends in ewin toward emf. from the warm; a screw en mm and of the last menzianed shaft which is adjacent; to thefzee end of ehe support; efirevelisg threaded en *Lhe screw; and a guifie fer the nut a, direction to swing 55: warm Wheel sherifia euppor s toward and 5mm the Worm. 4r. a skewing device fer internal some bastion engiunes Ehe comhine'tiozl with the engine shaft; 0f a spring meter; a driving conneetien between the motor and the shaft; a clutch in seifi; cennectien; e, wining sieviee for the spring"; a gearing between said winding device and the engine shafts, gearing inchgding warm on the sheft end a warm whee ix: mesh therewith; a. shaft can Tying the worm Wheel; :1. support fer the worm wheel shaft mounted te swing teward and flfim the WGILH to engageemi disen age the warm screw 01; the warm w eel sheik; traveling nut threaded on the screw; hem-em wiaich the nut is mmmfied bemg farmed wih shmzldexe fined in the directien 0f aihe worm; Agnes e11 m; in centeet with the 51101111 'busziml engiine the i engine shaft; at a moiisr; eiravmg ers; am}, yie'itixag 111%4333 peein tenguee te s ee iaz 5. a, startiag eeviee "fer finial-Lei busiien engines, the c mbineeiQe v-ijlfi 3% engine shei't; '01 a meme"; ii 7 i a clutch in said ccmz'ee iien; as, file vice fortne sgrring; a gaming between $2 winding device and the shefz including e welm en the engine shat, 511121 a worm Wheel; e eu gpe fer the wheel shaft moauaed for swiuging F ment @eward ssmi ffmm the wer edge said warm wheel with he were 2111i fie dis engage the same; 2,11% eutmnetie Cay we eting means swinging said su ape t e stereing device fer intemei cemcem'abinatien eemieezie'a bet" mains: and am e clumh n 3 cm e, windizlv fie vice few we seeing windiag e engine ski-"ifs sale; gearing warm 0.21 1, shefi and a worm W21 1 in meeh the with; e carrying file wane wheel; s'egsgeez'ii'ief the shafemeunte-l war. end ire zee wean w ezsgegeeni die engage the werm wheei; e 0e worm whee simfi e ismveiing emeeee. en the screw; and means fez:

' the nut he revel. in e i0 worm whee; shaft suppert" In teem-many that I claim the ie e emg es my own, I have hereee efixee sszgzmtmre m the presence m? We wltnesms;

izL' iAfi Witneesee:

LAWSON