US1098888A - Means for starting internal-combustion engines. - Google Patents

Description

Mmmm Jam@ 2, WM.

J. DBSMOND.

MEANS Eon STARTING INTERNAL coMBUsTIoN ENGINES.

APPLIUATION FILED HAY 3, 1913. Y 1,098,888. Patented June 2, 1914.

3 SHBBT-BHBET 3.

JOI-IN DESMOND, 0F WILMETTE, ILLINOIS.

MEANS FOR STARTING INTERNALeCOMBUSTION ENGINES.

Specification of Letters Patent.

Patented June 2, 1914.

Application led May 3, 1913. Serial No. 765,206.

T0 all whomt't may concern Be it known that I, JOHN DnsMoND, a citizen of the United States, residing at lVilmette, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Means for Starting Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in means for starting relatively large internal combustion power engines.l

One of the objects of my present invention is to provide simplified, etlicient and practical means for connecting and disconnecting a smaller starting engine to a larger internal combustion power engine thereby te start the latter engine.

More specifically, my invention consists in certain details of construction and combination of parts herein shown and described and particularly pointed out and defined by the appended claims.

Other and further objects of my invention will become readily apparent, to persons skilled in the art, from a consideration of the following description when taken in conjunction with the drawings wherein;

Figure 1 is a longitudinal elevation of my device showing it applied to an automobile engine and showing the parts of the automobile in sections. Fig. 2 is a transverse section taken on line 2N2 of Fig. 1. Fig. 3 is an enlarged transverse section of the double starting drum, taken on line 3 3 of Fig. 1 showing the ratchet and pawl connecting means. Fig. l is an enlarged, longitudinal, central sectionv of the same, taken on line H of Fig. 1 and on line 4 4 of Fig. 3. Fig. 5 is an end elevation of the starting engine` showing the shaft of the power engine in section, taken on line 5-5 of Fig. 1. Fig. is an enlarged central section of the connecting clutch, taken on line 6-6 of Fig. yl showing the members disconnected and separated. Fig. 7 is an enlarged transverse section, taken on line 7-7 of Fig. 1. Fig. 8 is a fragmental view of the clutchmembers,

shown in Fig. 6, showing them engaged.

In all the views the same reference characters are employed to indicate similar parts. In my copendingapplication, Means for starting internal combustion engines, .tiled J an. 3rd, 1913 and identified by Serial No. 740,052 I have shown a structure that in many respects is generally similar to that of my present invention, the diii'erences apbar,

pearing in the arrangement and coperation of the parts.

In the present exemplification 10 and 10 are the longitudinal members of the frame of an automobile, upon which is mounted an internal combustion power engine 11, which is employed to propel the vehicle. A shaft 12, of said engine, is provided with a fly wheel 13 upon which is mounted an annular gear 111-. The annular gear may be an integral part of the ily wheel, or it may be a separable part secured thereto.

A small internal combustion engine 15, that may be readily started by a foot t-readle, or manual means, is arranged upon they cross 1G, with its base 15 inclined, being so arranged, With reference to the casing 20, as to give the engine a. slight inclination. To the shaft 17, on the small engine,is secured a geared pinion 18 and to the casing 20 of the small engine, is secured a stud 19, upon which the rotatable clutch members 2l and 22 are mounted. The member 22 is provided with a sleeve 23 which overlies the stud 19 and provides the bearing for this member. The member 2l is provided with a perforated boss 24 which has bearing support upon the sleeve 23 and is laterally shiftable with reference to member 22. Both members are freely rotatable upon the stud 19 and the member 21. Vmay be laterally shifted into the position shown in Fig. 6`

in which it is disconnected from the member 22, or it may be placed in the position shown in Fig. 8 where the clutching' members 21 and 22 are in engagement. A washer 25 is held in place on the stud 19 by means of a cap screw 26 threaded into the end thereof to prevent the entire displacement of the member 21 from said stud. The members 21 and 22 proper are, as a matter of fact, gear wheels, as shown in Fig. 5. The member 21 is `adapted for intermediate transmission, by geared relation between the pinion 18 and the geared annulus 111 of the fly wheel 13 when in proper position for this purpose, as will be hereinafter described. The members 21 and 22 are three jawed clutch members, adapted for interclutch re-y lations, as shown in Fig. 8. It will be observed that the parts Q7. of these jaws, overhang somewhat so that in order to separate them there must be first some relative rotary motion of the parts before they may be i arated by a relative lateral movement. Tige clutch members are secured to the respective gear members by rivets 2S, or other suitable means. The sliding member 21, of the clutch, is adapted to be laterally moved on the sleeve 23 by a forked rod 29 so that the clutch member 21 may be placed in position for driving relation with clutch member 22, or moved into the disconnected position shown in Fig. G.

."a hand lever 30, pivoted, as at 31, and

l having an extension 32, is connected to the forked rod as at 33, and by this means, when the lever is moved to a rearward position the rod 2S) is moved forwardly and disengages the clutch member 21 from the clutch member 22 thus .separating the members as shown in Figs. 1 and 6. Then the lever 30 is released the spring 33 being potentiated by-thc previous movement of the lever BO, will return the parts to their normal position, shown in Fig. 1, wherein neither of the geared members 21 or 22 are in contact with the geared rim 14 of the ily wheel.

For convenience of starting the engine 15, by foot pressure, or by hand pressure, I eX- tend the shaft 17 of the engine 15 outwardly toward the foot board and over the end 17', of the shaft 17 of the small engine, I place a double. drum 3G, having a smaller drum 37 and larger drum 38. To the eX- teru'led end 17', of the shaft 17, is secured a ratchetwlieel 39 by means of a lrev 40. T he drum is held in place between the ratchet wheel 3f) and the nut 43. The nut is adapted to screw on the threaded end 42 of shaft 17 and to hold the washer 41 in place to prevent displacement of the drum. Secured 'to drum are ratchet pawls and 45 yicldingly held in contact with the teeth of the ratchet wheel 39 by means of the springs 46-4G so that when the drum 36 is rotated in one direction it will drive the shaft 17 through means of the ratchet wheel and ratchet pawl connections, and when it is rotated in the opposite direction the drum will rot-ated independently of the shaft 17. l.. effured to the smaller drum 37 is a strap, or bett, 47 having its free end connected to a spring 48 as at 49, the other end of the .bring 4S being connected to a fixed part of 'l s secured strap or belt 51 the free end of uien connected to a stationary portion of Y ie .fehicle. as at The belt 51 passes over u op of the two stationary rollers 53 and hat are supported on a partof the vehile frame. ln the guide 55 secured to the Tot board is a vertically movable press carrying on its lower free end a er This roller, 57 is in a vertical Liane midway between the rollers 53 and 54 and in a longitudinal plane, when in raised iosition, just slightly above the belt 51.

Now to start the small engine, assuming that. the fuel su VmlT and ignition means* e vehicle, as at 50. To the larger drum 38" have been properly arranged-it lis only necessary to depress the lever or vertically moving rod or plate 56, downwardly when the pulley or roller 57 will pass to the position shown in dotted lines in Fig. 2 thereby causing rotation of the shaft 17 of the small engine by engagement of the pawls 44 and 45 with the teeth of the ratchet wheel 39 causing the shaft 17 of the small engine to malte several revolutions during each reciprocation of the vertically movable part 56. When pressure, upon the part 56, is released the spring 48 will return it to its normal position, shown in Fig. 2, and by means ofl the ratchet relation between the drum 36 and the shaft 17, the drum will be freely rotated in the opposite direction to which the shaft 17 is now; turning, or was turned in the initial operation of the device, so that if the small engine is not started by the first reciprocation of the vertically movable part 56 the part may again b e depressed until the small starting engine has been set in motion so as torbeconic self propelling. Now when the small engine is self propelling,- the lever 30 is moved to a forward position until the geared member 21 is reciprocated along the sleeve 23 so that the gear teeth thereof makes intermeshing connections with the gear teeth on the annulus 14 of the fly wheel 13, thus bringing the geared member 21 into association with the fly wheel before the clutch members 21 and 22 are engaged, thereby assuring a proper geared relation before the clutches are associated. A further forward movement, of the lever 30, will cause engagement of the laterally shiftable clutch member 21- with the relatively rotating member 22 whereby the shaft 12 of the engine 11 will be rotated by the instrumentality just described. 1f now the lever 8O be released the spring 33 will not be. of sufficient power to return the clutch member 21 tothe position shown in Fig. 1 because the lips 27-27 of the clutching members 21 and 22, respectively, overhang, and inasmuch as the rotation of the smaller engine tends to preserve this relation, the spring 33 can only move the parts in a straight lateral direction, the overhanging lips of the clutch members serve to maintain the clutches in their normal position. After the power engine 11 becomes self propelling, when the shaft has been primarily rotated in a manner described, the clutch member 21 will have been moved ahead of the clutch member 22 by the faster speed of the larger engine, and thereby the overhanging lips 27, of the respective clutch members will be moved from the same longitudinal planes and the spring 33 will then be sufficiently 'powerful to move the clutch member 21 out of engagement with the clutch member 22. When this is done` which will follow 'as a natural sequence of the operation, the larger power engine 11 will be entirely disconnect-` description, that after the starting engine has been set in motion, by the manual means shown', the geared relation between the two engines is rst established before the clutch is operated so that in connecting the two engines together there is no danger of stripping the gear teeth from the gear wheels it will further be observed that when the mem' ber 22 is being rotated by the Smaller engine, the sleeve 23, upon which the member` 21 is mounted will vgive a certain rotative movement to the member 21 by the frictional engagement of the parts so that by manipu-v lation of the lever 30 the `geared relation between the members 21 and 14 may be quickly Vand easily established, after which themore positive engagement of the clutch members 21 and 22 may be eii'ected by further movelment of the lever 30.

y While I have herein disclosed a single embodiment of my invention for the purpose of a clearexplanation thereof it is evi-A dent that many changes may be made in gine; connecting vmeans for saidjengines,

normally disconnected; means for connect-` 40' y thereby;.an automatic means potentiated'by the operation of said connecting means, for

ing said connecting means; meansfoperable bythe starting engine for maintaining' suoliconnection while the power engine 1s driven Vdisconnectimg said connecting means when y i i Athe power engine becomes self propelling.

y 2. In va-device of the character described, a'power engine to be started; a starting engine; a connecting, two partclutch for said engine, normally disconnected; means .for

i engaging said' clutch members; locking means for said clutch members operable b the starting `engine for ,maintaining suc connection while the power engine is driven thereby.' an automatic means, potentiated iw the operation of said connecting means for disconnecting said clutch members when the power engine becomes self propelling.

3. In a device of the character described a power engine to be started; a starting engine; a two part clutch for connecting said 4. In a device of the characterv described,

a power engine to be started; a gear wheel on said engine; a starting engine; a clutch member rotatable by the startingengine, and a shiftable clutch member adapted and arranged to establish rotary 'engagement with said power engine and subsequently with said rotary clutch member.

5. In a device of the character described, a power engine to be started; a gear wheel on said engine; a starting engine; a clutch member rotatable by the starting engine, and a shift-able clutch member normally disengaged, adapted and arranged toirst establish rotary engagement with said power engine and subsequently with said rotary clutch member and automatic means to return said shiftable clutch member to normal position after said powerv engine becomes self propelling. v f

6. In a device of the character described, a power engine to be started; a starting engine; a clutch member, `rotatable by the starting engine; a clutch member for rotative engagement with said power engine; v

means for connecting said clutch members;

vthan the starting engine clutch member.

In testimony whereof I hereunto set my f hand in the presence of two witnesses.

JOHN oiesiiOND.l In the presence ofi FORE BAIN, tiene? Y. ALLinv.

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