US1141261A - Motor-starter. - Google Patents

Description

1. A. PARKINsN.

MOTOR STARTER.

APPucArlon man sPT.24.19|3.

Patented J une 1, 1915.v

2 SHEETS-SHEET l.

1 '7H- (OA A TTORNEY 1 A. PARKINSON.

MOTOR STARTER.

APPLTCATION FILED sEPT.24,1913.

l 1 4: l ,26 1 Patented June 1, 1915.

2 SHEETS-SHEET 2.

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u if@ 5 A TT RIVE Y UNITED STATES PATENT OFFICE.

JOHN n PARKINsoN, or sIoUx CITY, Iowa Moron-STARTER.

Specification of Letters Patent.

Patented June 1, 1915.

Application tiled September 24, 1913. Serial No., Plfi To all whom it may concern."

Be it known thatl, JOHN A. PARKINsoN, a citizen of the United States, and a resi- Adent of Sioux City, in the county of lVood- Another object of the invention is the pro-- duction of a device of this class inexpensive 'in both construction and maintenance and which may be applied to the great majority of motor-driven vehicles.

- A further object is the construction of a motor-starter which may be employed in connection with the usual starting-crank.

A still further object is the provision in a device of this class of an improved means of control.

With these and other objects in view, the invention, consisting in` the construction,

l'combination and novel arrangement of parts, will be fully understood from the following description, reference being had to the accompanying drawings forming a part of this application and in which like characters of reference indicate corresponding 'parts throughout the several views, of which;-

YFigure lis a fragmentary front elevation of an automobile chassis equipped with the preferred embodiment of my invention; Fig. 2 is a plan view of the same; Fig. 3 is a side elevation of the hand-lever secured to the dash, the lever handle being omitted; Fig. 4 is an enlarged plan View of the preferred form of my device with hand-lever and con` necting link omitted; Fig. 5 is a front elevation of the same with parts cut away to reveal the internal characteristics; Fig. 6 is a. vertical section taken on the linel 6 6 of Fig. 5 and mounted on theshaft and crank; Fig. Tis a. rear elevation of the operating lever with attached parts broken away; and

. Fig. 8 is a side elevation of the same.

Although I have herein presented-the preferred embodiment of my'lnvention, I would not be understood as being limited to the specific form selected for illustration, for Without departing from the spirit and scope of my invention, the device mayr be modi- Got tied in various ways to suit the divers types of vehicles with which it mav be used.

The inventi n contemplates, Ibroadly,

ratchet mecha ism mounted on th'c main shaft of the en ine and actuated Ybya re1- .6 tractable 'lever lnd pawl mechanism' controlled. by a haniLd-lever operated from the drivers seat,\\and"r' tchet mechanism mounted on the starting-crank and 'engageab'lewith (said .first ratchet mechanisrmfall o'f,`7 which will presentlyrbemade clear. Y c

Referring now to the, illustrations, 9f'\is'\an, automobile frame, or chassis, eq'lii the usual, engine', 10, and dash, 11. f hemla'il'ie' 'shaft is represented at 12 and the lfamilizlii; ,7

starting-crank: at l13. The., usual connection between the latter members, however, is supplanted by my novel device.A Y 14 is a ratchet-Wheelcarried by thmrgiinshaft and preferably chst integrally ,`with" the belt pulley, 15, secured" on the s aftby'f, a cross-pin, v16, which ,m11 ey isl'generally employed to drive Athe radi'atorhfa The ratchet-wheel, 14. encircles a second ratchetwheel,.17, secured by a cross-pin, l18, or otherwisey upon the starting-crank, 13. In the front -side of the ratchet-Wheel, 14, are depressions, 19, within which are dogs, 2(,l,piv-l oted, u pon pins, 21, carried by the ratchet,`.

which `clogs are adapted "for engagement 9oI with the internal ratchet-Wheel.

By virtue. of this construction -it is clear vthat when necessary to s n the main-shaft in order to start the er1/gne, which is frequently required in co dweathenthe-crank may still be used. enthe engine -is at rest one or more of t 'e dogs 20 will be in position for engage ent with the ratchetwheel, 17 whereupo rotation of the 4cra-nk will impart like m vement to the main- 100" shaft; and after the\\engine has started to run automatically the dogsare thrown outwardly and freed from the internal ratchet- Wheel by centrifugal force. By providing several teeth on the internal ratchet, as

shown, the crank may always be engaged at a convenient point to obtain a purchase. g

22 is a lever the inner end of which is y formed in a collar, 23, free to turn upon the hub of the internal ratchet-wheel,and the outer end is off-set rearwardly and termi- -nates in a segment concentric with the collar 'and `provided with a peripheralgroove, 24, within which lies a flexible link, -25, one end ofwhich is secured to a cross-pin, 26, extending through the lever. The said flexible link passes over a direction pulley, 27, secured to the chassis, and is then secured to an arm, 28, extending laterally from an upright shaft, 29, journaled'in suitable bearings, 30, on the rear side of the dash. A horizontal hand-leverfl, provided on the upright shaft, rests normally within a U- shaped socket, 32, mounted upon the dash and the arms of which tend to spring toward each other and thereby reduce the' shock incident to the retraction of the lever. A retractable spring, 33, secured to the chassis and connected by a link, 34, with the lever, 22, serves to maintain the latter in l normal position and retract the same and the hand-lever after operation.

On the rear side of the lever, 22, is a pawl, 35, fulcrurned at 36, and provided with a he'el, 37, which is forwardly off-set to engage the lower edge of the lever, and due to tension of the retractable means, 33, normally engages-a fixed members-3 8, which .may be a portion of the framefof the-:vehicle as illu'strated, and by virtue of which the wl is normally held out of engagement with the ratchet 14.

Although the pawl is so balanced that it will, engage the ratchet when the lever is lifted, I prefer to employ means whereby the engagement is quicker 'and more positive. For this purpose a post, 39, pivotallyv secured to the pawl, as at 41, extends through the off-set segment, into the groove thereof and engages the flexible link.

. y compression-spring 40, interposed between the segment and the pawl and encircling the post, tends to force the pawl toward the ratchet-wheel. However, when constructed with the post extending into the groove, as illustrated in Fig. 5, the presence ofthe compression-spring is arbitrary, for when the hand-lever is moved to im art strain on wheel. 50

lwill turn the'flexible link, the latter w1ll coact with the post to engage Athe pawl and ratchet- From the structure nowl disclosed it is clear that the operator may start the engine by drawing the hand-lever :toward him whereupon the lever 22 and attached pawl the ratchet-wheel, 14, in the desired direction. When the hand-lever is released it is retracted by the lever 22.

'The specific hand-.lever mechanism disclosed'herein forms the subject-matter of myfdivisional application, 848,674, filed July 2, 1914'.-

v I-Laving thus described my invention what I claim asnew and desire tosecure by Letters 'Patent'is,-.-

1. A device of the class described comprising in combination with the main-shaft and starting-crank, a ratchet-wheel mounted upon the main-shaft; va retractable lever fulcrumed coaxially with said ratchetwheel; a pawl pivoted on said lever to engage said ratchet-wheel, said pawl having a portion engageable by a stop 'whereby it is normally disengaged from said ratchetwheel; a hand-lever fulcrumed upon the vdash;,a flexible link between said levers; a

' vided with a peripheral groove; a pawl pivoted on ksaid leverA to engage Said first ratchet-wheel, said pawl lhaving a portion engageable b a stop whereby it is normally disengaged rom'theratchet-wheel; a post pivoted to said pawl and extended into said groove; a hand-lever fulcrumed upon the dash.; a fiexible link between said hand-lever and the first said lever, said link being disposed within said groove and adapted, when traction is made upon it, to force said post inwardly.

3.;A device of the class described comprising in combination with the main-shaft e and starting-crank, a ratchet-wheel mounted upon themain-shaft and provided with depressions in one side thereof; dogs pivoted within said depressions; a ratchet-Wheel having a hub mounted upon the startingcrank, encircled by said -first ratchet-wheel and adapted for engagement with the dogs;

freely mounted on the hub of saidsecond ratchet-wheel, said lever having a pawl pivoted thereon for enga ement with said `first lratchet-wheel; and a exible link secured to said lever and terminating upon a hand 'lever controlled from t e driversseat.

4. A device of theV vlass described com-l prising in combination -with the main-shaft, starting-crank, and a ratchet-wheel mount.- ed on the main-shaft and having depressions in one side thereof, dogs pivoted in said depressions; a ratchet-wheel having a hub mounted upon the starting-crank, en-

' circledby said first ratchet-wheel and adapt-v ed for engagement with said dogs; a retractable lever mounted freely upon the hub of said second ratchet-wheel and provided with a pawl for engagement with s aid first ratchet-wheel, a -stop to normally disengage 11o a retractable lever integral with`a collar`

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