US1230064A - Starter for internal-combustion engines. - Google Patents

Description

-W. H. CARD & J. l. CUSHMAN.

APPLICATION HLED IULYZY, 1916.

Patented June 12, 1917.

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STARTER FOR INTERNAL COMBUSTION ENGINES.

Fro.

WILLIAM H. CARD AND JOSEPH J. CUSI-IllVIAN, 0F LOS'AINGELES, CALIFORNIA.

STARTER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent. Patented J 111 12, 1917,

Application filed July 27, 1916. Serial No. 111,599.

To all whom it may concern:

Be it known that we, WILLIAM H. CARD and Josnrrr J GUSHMAN, citizens of the United States, residing at Los Angeles,.in the coimty of Los Angeles and State of California, have invented new and useful Improvements in Starters for 111ternal-Com-.

bustion Engines, of which the following is a specification. a

This invention relates to an engine starter and particularly pertains to a starting device adapted to be used in connection withautomobile engines. 3

It isan object of this invention'to provide an engine starter which may be simply mounted upon the crank shaft of the engine and which may be readily operated from release of the operating member by the driver, and will remain in it? disengaged position until the operating'member is .wilfully drawn to start 'theJcar; I

It is another object to provide a starter having few parts which are adapted to be assembled in an easy manner and which coact in performing their functions so that they arenot liable to become worn or to require repair.

1 Another object is to provide a simple and effective oiling system for the starter whereby oil will be circulated to all the parts requiring lubrication and will be there retained. a I

It is a further object to provide a selfstarter which may be operated with small eflort and which is decidedly cheap in manufacturing costs. 1

Other objects will appear hereinafter. The invention .is illustrated by way of example in the accompanying drawings in which: f Figure 1 is a view in elevation illustrating the starter in its operative position upon an engine shaft. V r

Fig. 2 is a view in horizontal section on the line 22 of Fig. 1 and illustrates the vital parts of the device in their starting pos1t1on. v i

Fig. 3 is a view in section. similar to Fig. 2 and illustrates the normal disengaged positions of the vital parts of the device.

Fig. 4'is a view in plan illustrating in a diagrammatical manner the arrangement of parts andapplicatio'n of-the device as applied to an automobile engine.

Referring to the drawings more particularly, 10 indicates the end of an automobile crank shaft and is here shown as having a sleeve 11 mounted thereover and secured by a pin 12. This sleeve is formed with an annular shoulder at a point adjacent its outer end, said shoulder being formed with a frusto-conical portion 141, the apex of which would theoretically lie upon the longitudinal axis of the crank shaft and toward the body of the engine. An extension 15 is formed on the outer end of the sleeve portion 11 and isof a suitable diameter to receive the' hub of an ordinary starting crank which is adapted to engage a starting pin 16. The frusto-conical portion 14 of the sleeve ,11 is encircled by and borne against byan annular split cup 17 V which is formed with an internal conical face adapted to coincide .-with' the face of the portion 14:. This cuphas its ends formed with radially extending ears 18 .and 19 which are spaced a short distancefrom each other and which may be forced toward each other by means which will hereafter'b e described. The cup 17 is formed with a fiat end face which bears against the end face of an annular cone member 20, which is formed with a centrallbore adapted to passover the tubular portion of the sleeve 11. This cone has an external frusto-conical face 21 converging at a point toward the engine and adapted to be pressed into engagement with a complementary cone-cup 22 formed in the outer end of a fan. pulley wheel 23 which is secured upon the engine shaft and over the tubularportionof the sleeve l1 by'the pin 12." It is evident that the member 23 need not necessarily be utilized. as a fan-pulley wheel but may be formed as a special cup for the starter construction only.

As a means for lubricating the various cones and cupsand the sleeve uponwhich they rotate, grease pockets 24, and 25 are alternately arranged concentrically around and through the cone 20. The pockets 24 extend entirely through the cone, and the pockets 25 extend a portion of the way through so that grease may 'be retained within the device and readily distributed therethrough.

The cone 20 is formed with an extension plate 26 which extends outwardly from the periphery of the cone in a radial manner and is provided with a pivot pin 27 upon which an operating arm 28 is pivotally mounted. The arm 28 is bent and has a substantially vertical portion 29 and a horizontal portion 30, to the end of which a vertically extending link 31 is pivotally secured upon a pin 32. The link 31 is formed with a perforation 33 within which the end of achainor cable 34 is secured.

The cable 34 affords connection between the starting device and a draw-bar 35 by which the operator manipulates the starting mechanism. This draw-bar preferably extends through an opening in the dash-board 36 of the automobile and communicates with the upper end of a vertically pivoted simple lever 37 which is held by means of a pivot pin 38 upon the frame of the car. 'One end of the chain 34 engages the lever at a suitable point along its length to provide the required leverage for the starter, and thereafter passes around an idler pulley 39 from whence it is led to the link 31 of the arm 28. A spring 40 is secured to the operating arm 28 and acts to retract the arm to a normal position after having been pivotally moved by a pull upon the chain 34.

The split cup 17 is adapted to be contracted in the operation of the device by forcing the cars 18 and 19 toward each other. This is accomplished by allowing the ear 19 to bear against a pin 41 rigidly secured to the plate 26 and forming .an engaging lug 42 upon an extension of the operating arm 28 so that movement of the operating lever in the direction of the arrow a will swing the lug 42 in a general direction to- Ward the pin 41 and will thereby bind the ears '18 and 19 therebetween. A reinforcing link 43 connects the pivot pin '27 .and the pin 41 to aid in strengthening the device and to retain the movable members in their operative position. I

When the starter has been assembled as described and secured upon the. drive shaft in the proper manner, it may be operated as follows: i I

Assuming that the engine control valves are in proper position to cause an explosion within the engine cylinders, the draw-bar 35 is drawn, 'by means of a suitable'handle, in the direction indicated by the arrow and'wi'll thereby swingth'e lever 37 upon its pivot 'to draw the chain 34 and swing the i 1iQI1atingarm'28 upon the pivot 27 in the direction of the arrow This arm, when so swung, will force ears 18 and 19 of the cup 17 toward each other and thereby reduce the diameter of the cup and cause it to slide inwardly upon the frustoconical face 14 of the shoulder on the sleeve 11. This action will force the cone 21 into the cup 22 within the pulley 23 and bind them together f-ri'ctionally. When these parts are thus locked, further movement of the chain 34 as it pulls the operatingarm 28 will swing the cone 2O and'the pulley 23 a portion of a revolution and as "the pulley is pinned to the shaft 10 of the engine it will also rotate. This rotation of the shaft is sufficient to properly start the engine under normal conditions and when the engine is slow in starting the operation may be repeated by reciprocating the ha-r35 until an explosion occurs. In case of back lire within the engine the cone 20 will slip upon its seat and thereby prevent dangerous shocks liable to be delivered to the operator as he holds the handle of the draw-bar.

It will thus be seen that this starter is formed with few operative parts and that it may be easily operatedto rotate an automobile engine crank shaft while the operator is seated and that it further insures against harm to the operator while starting,

1. In an engine starter,-the combination with an engine crank shaft, of a starter sleeve secured thereon, a fixed clutch member secured thereover, a loose clutch member adapted to rotate upon and move along said fixed member, means whereby the loose clutch member may be rotated upon the, sleeve, a shoulder formed-at the outer end of said sleeve, and means acting between said shoulder and the loose clutch member and actuated by said clutch rotating means to force the. loose clutch member into engagement with the fixed member.

2. In an engine starter, the combination with an engine crank shaft, of a fixed zclutch member having a cone-shaped recess one side thereof and concentric with the crank shaft upon which it is secured, a loose clutch cone slidably mounted in relation to the cone-shaped recess, a sleeve upon vwhich said cone is adapted to rotate, an annular conical shoulder adjacent the outer end of said cone, a split conical cup adapted to bear between the conical shoulder and the "cone, means whereby the cone may be" rotated, and means acting simultaneously with the rotation of the cone whereby the split conical cup will be contracted around the conical shoulder and will act-to force the cone into engagement with the fixed clutch member to rotate the engine "shaft;

3. In an engine starter, the combination of an engine crank shaft, a fixed clutch member thereon, a second clutch menib'er slidably mounted on said shaft, means loosely mounted on said shaft for moving said second clutch member longitudinally along said shaft in frictional engagement with said fixed clutch member, means pivoted to said loose clutch member for simultaneously actuating said first named means and imparting a partial rotation to said second clutch member, and resilient means tending to move said pivoted means into normal inoperative position.

4:. In an engine starter, the combination with an engine crank shaft, a fixed clutch member thereon, a second clutch member slidably mounted on said shaft, means for moving said second clutch member longitudinally along said shaft in frictional engagement with said fixed clutch member, means for simultaneously actuating said first named means and imparting a partial rotation to said second clutch member, and means tending to move said last named means into normal inoperative position.

5. In an engine starter, the combination with an engine crank shaft, a fixed clutch member thereon, a second clutch member slidably mounted along said shaft, means for moving said second clutch member longitudinally along said shaft in frictional engagement with said fixed clutch member, and means imparting a partial rotation to said second clutch member.

6. In an engine starter, the combination with an engine crank shaft, a fixed clutch member thereon, a second clutch member slidably mounted along said shaft, and means for simultaneously moving said second clutch member along said shaft in frictional engagement with said fixed clutch member and for imparting a partial rotation to said second clutch member, and means tending to move said last named means into normal inoperative position.

In testimony whereof We have signed our names to this specification.

WILLIAM H. CARD. JOSEPH J. CUSHMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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