US826252A - Starting device for explosive-motors. - Google Patents

Description

PATENTED JULY 17; 1906.

v T. B. JEFFR Y. STARTING DEVICE IE'OR-EXPLOSIVE MOTORS.

APPLICATION FILED JUNE 10, 1901.

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Tiwman' 3 /fe -N0.- 826,25L". PATENTED'JULY I7, 1906.

' T. B. JEPPBRY.

STARTING DEVICE FOR EXPLOSIVE MOTORS. APPLICATION FILED JUNE 10, 1901.

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.THOMASB'LJEFFERYYQF KENOSHA, WISCONSIN.

STARTING DEVICE FOR EXPLOSIVE-MOTORS.

Specification of Letters Patent.

Patented July17, 1906.

A w-flinafion fil d June 10, 1901. Serial No. 63.317.

nosha, in the county of Kenosha and Statho f Wisconsin, haveiinvented certain new and puseful Improvementsin Starting Devices for ExplosiveMotors, of which the following is a specification, reference being had to the accompanying drawings, forming a part'thereof.

The purpose-of this invention is to provide means for insuring that at the time ofstartindg an explosive-motor the igniter shall be so a justed that the first explosion shall occur atproper stage to produce forward and not re-' versed motion.

7 It consists of the features and details of construction set out in the claims. I In the drawings, Figure'l is a vertical section transversely with, respect to a fore-andaft main crank-shaft of the. motor of a vehicle having such motor provided with my in- .y ention. Fig. 2 is a section at the line 2 2 on 1. Fi ,3 is a detail, partly sectional, in the vertica planeof the axis of the engine crank-shaft, showing a modified form of my invention, Fig. 4 is a detail elevation similar to Fig.2, but not including the main crank-shaft, showing a further modification of my invention.

In the .drawingsI have shown my invention applied to the motor of a vehicle in which the main crank-shaft of the motor extends I longitudinally fore and aft with respect to the vehicle. It will be obvious to any one skilled in the art that slight changes, which any mechanic will readily make, will adapt it to'a vehicle in which the main c'rank-shaf extends transversely.

A represents the main crank-shaft of the motor; B, a counter-shaft in convenient p0- sition to be rotated by a proper crank-han- -dle and deriving motion from the main crankshaft by means of the chair; 0, passing around the sprocket-wheels a and b on the two shafts, respectivel' cling through and ournaled in a board D, which may be called the controller-supporting board, on which there is mounted the controller E for an electric i nifter. This element is of the form which is fully shown and described in my application, SerialNo. 3,956, filed February 5, 1900, and

need not be further described herein except to say that the lever-arm E extends from a ,late e which is adjustable b means of said ever-arm about the axis of I have shown the coun retreating stroke and movement in the op-' has the effect to retard or deposite direction lay the sparking.

F is a lever-arm mounted on the board D and connected by the link G to the adjustingarm E of the igniter controller. A spring is provided operating upon the lever-arm tending to hold it inthe position shown in Fig. 2, at which the pin g, by means of which the link G engages and actuates the arm E is in position to allow the arm E its full range of adjusting movement in both directions.

On the counter-shaft B are clutch-teeth B B adapted to be engaged by the hub H of the handle H, which is provided for the use of the operator in startin the motor by hand, said hub having proper orm for engagementwith such clutch to rotat'c-it'in the proper direction for startin the motor, but adapted to be forced out 0 en agement by the incline of the engaging clutc -teeth when the motor is driven faster than the handle is bein turned, the mode of use, as well understoo being to operate the motor by hand by means. of the handle through one cycle in order to initiate the proper action, which will be continued automatically by the ex losion at proper time in the next and succee ing cycles, the handle being withdrawn from engagement as soon as the automatic action of the motor commences. The hub of the handle-H is tapered, widening back fromthe lever F to crowd the latter away-from the shaft when the handle is forced into engagement for operating the shaft. The movement given to the lever F- b this action is sufficient to cause the link G, y means of the pin gthereon, to move the adjusting arm E of the igniter-controller to the position shown in dotted line in Fig. 2, which is the position at which ignition is delayed, so asnot to occur until after the piston has started back in its retreat after its compressing stroke, so that anexplosion occurring at that time is certain not to produce rotation in reversed direction. As soon as the action of the engine is commenced and the handle is forced out of engagement or is voluntarily removed the. .device to by the operator, the spring f returns the le- ,g greases verF to its original position, carrying the pin 9 on the link G out of the way of the adjustingarm E of the igniter-controller, leaving that arm free to move to any position within its range of adjustment obedient to anymeans which may be provided for efleotin such adjustment automatically or at 1. Such means are notherein shown, no specific means for that purpose being essential to the present 10 invention.

In Fig; 3 I have shown a modificationof this device. In this form I have shown the operating-handle arranged to be applied directly to the engine crank-shaft instead of to I 5 a counter-shaft, and the lever F, by which the adjusting-arm of the igniter-controlleris operated, is pivoted so as to swing in a plane radial to the shaft instead of transversely thereto, as in the principal form shown, said to lever having an aperture F through which the crank-sh aft extends and outside of which said shaft is adapted to receive the operatinghandle. In this form the igniter-eontroller is mounted on a horizontal support instead 5 of upon the vertical board, as in the other form, andthe end of the lever F extends uppast the finger E of said-controller and is arranged to force said finger. to the position for delayed i nition when the handle a lied to the end 0 the main crank-shaft colh es with the lever and forces it back on the shaft in order to admit the handle. A spring f is provided, as in the other construction, to hold the lever F normally in position at which it will not obstruct the adjusting movement of .the finger E. I

A further modification may be understood from Fig. 4, in which the lever F, operating in the same manner as the lever F in Fig. 2 in 40 the first form, so far as its action upon the adjustin finger of the igniter-controller is concerne operates to entirely obstruct the end of the counter-shaft, so as to prevent the handle from obtaining access to the shaft until said lever has been swung out of obstructing position by the operator. Thedif'ference between this form and the other two ismerely that the movement ofthe lever out of osi- 2 tion at which it prevents engagement 0 the so handle with the shaft is not automatic, as in the first twov forms. I consider the automatic form of device somewhat preferable, and of the three forms that first described has a slight additional advantage over the others, in that it permits the lever F to be utilized as a key to hold the handlein engaged position on the shaft until it is either withdrawn voluntarily by the -operator or forced out of engagement by the more rapid 6o rotation of the shaft, said eX edient consisting in providing a groove 2 on the hub 'of the handle, into which the edge of the lever is adapted to take when the handle is forced into engagement. The side of the groove and the corresponding portions of the proper handle.

edge of the lever are beveled, so that the engagement Will not prevent the Withdrawal of the handle by the operator or its disengagement from the'shaft by the automatic action of the clutch. It will be evident that this invention is not limited to use with a crank for a startinghandle nor to use with a hand-operated startin -lever, and by the word handle, applie to the crank shown in the principal figures, I do not limit them to exc ude any form of lever which may be moved by the operator or motorman for starting the engine; nor by the term lever do I' intend to exclude a wheel such as shown in dotted line in Fig. 1., (marked H,) which may be substituted for the crank-handle. In Fig.5 I have shown a form of handle it for starting which ma at all times remain on the shaft, but which is forced out of operative engagement therewith by rotation of the shaft after the. automatic action commences, the engaging stud a acting on the s iral incline h of the hub of the-wheel and orcin the latter longitudinally on the shaft unti the stud clears the engaging shoulder h and thereafterrevolves without encountering or actuating the In'thisfform I have also shown the lever F actuated not by the movement of the handle, which effects operative engagement of the latter with the shaft, but by the rotary movement of the handle'while engaged, the cam rotrusion h on the hub of the handwheel being located at such part of the circumference relatively to the engaging shoulder h as to commence to force the lever out 1 and adjust the igniter-controller to. position for delayed ignition and at proper time in the first revolution to forestall ignition.

I claim 1. The combination with a shaft-of an ex plosive-engine by whose rotation the engine may be started andan electric circuit-breaker mounted apart from said shaft jand movable for varying the time. of ignition, and a sparking device connected with said circuit-breaker of a movable guard for the shaft which at normal position obstructs the operative engagement therewith of a turning device, and connections from said guard to the movable electric circuit-breaker.

2.. The combination witha shaft of an explosive-engine by-whose rotation the engine may be started and an electric circuit-breaker mounted apart from said shaft and movable 12o,

to vary the time of ignition, and a sparking device connected with said circuit-breaker, of a movable guard for said shaftmeans for holding it normally in position to obstruct the movement of a turning device to operative position for turning the shaft, and connections from said movable guard to said movable electrio circuit-breaker, the relative position and connections of said two connected movable elements being such-that the move-- ment of the guard out of obstructing position adjusts the circuit-breaker for affecting the time of ignition.

3. The combination with a shaft of an explosive-engine by whose rotation the engine may be started and an electric circuit-breaker mounted apart from said shaft and movable to vary the time of i nition and a sparking device connected wit said circuit-breaker, of a movable, guard for said shaft means for holding the'guard normally in position to obstruct the operative engagement of a turning device with the shaft, and adapted to be forced by the latter out of such obstructing gosition inthe introduction of the turning evice to such operative osition, and connections from said mova le guardto said movable circuit-breaker.

v 4. The combination with a shaft of 'an explosive-engine and an electric circuit-breaker, movable to vary the time of ignition, and a sparking device connected with the latter, of a guard arranged to move transversely of the shaft and stop ed laterally near the same; means for ho ding it yieldingly in such sto ped position, said guard being ada ted to e crowded laterally away from the s aft by the engagement of a turning devicewith the latter, and connections from said guard to said movable circuit-breaker for adjusting the latter by the move-ment of the former from obstructing position.-

5. In an explosive-motor, in combination with a shaft by whose rotation the motor may be started; a device mounted apart from said shaft, for controlling the time of ignition in the cycle of the engines action; means for rotating the starting-shaft; a lever and connections by which it moves said controlling device to vary the time of ignition, said lever extending inproximity to the starting-shaft in position to be encountered and moved by the means for rotating the shaftin the movement of said means toward tive engagement with the s aft.

6. In an eX losive-motor, in combination with a shaft y whose rotation the motor maybe started; a device mounted apart from said shaft for controlling the. time of ignition in the cycle of the motors action; a handle for rotating saidshaf t; a lever and connections by which it moves said controlling device to vary the "time of ignition, s'aid lever extending in position obstructing the o era: tive engagement of the handle with the s aft, and arranged-to adjust the controller for 'af- -fecting the time of ignition by movement out of such obstructive position.

7 In an ex losive-motor in combination with-a shaft y whoserotation the motor may be started a device mounted apart from said shaft for controlling the time of ignition in the cycle of the motors action; a handle for rotating said shaft; a lever andconnections by which it moves said controlling deposition of opera-- vice to vary the time of ignition, said lever "extending in'proximity to the starting-shaft, and at all points corresponding to advanced ignition obstructing the engagement of the I handle with the shaft; said lever being movable at will from such obstructing position to position corresponding to delayed lgnition. 8. In anexplosive-motor, in combination with a shaftby which the motor may be started; a device mounted apart from said shaft, which controls the time'of ignition in the cycle of the motors action; a handle for operating such shaft; a lever and connections by which it moves the controlling device to 'varythe time of ignition, said lever extending in adapte to stand in position obstructin the o erative engagement of the handle wit the s aft, said lever andhandle being relatively constructed so'that the latter forces the former'out of obstructing position in coming into engagement with the shaft, the lever being arranged and connected so that] such forced movement of the latter adjusts the controller for affecting the time of ignition.

9. In an explosive-motor, in combination with a controller for the igniter, adjustable to vary the time of ignition in the c cle of the engines movement, a shaft by W o se rotation the engine may be started; a handle for operating such shaft; an element arranged to proximity to the starting-shaft, and

such movement of said element away-from the shaft operates the adjusting means of the a igniter-controller to s'etthe latter at position for affectingthe time of.ignition. v

IO. In an explosive-motor, 1n combination with the controller for the igniter, adjustableto vary the time of ignition in the cycle of the engines movement, a shaft by whose rotation the engine may be started; an element arranged to move transverselyof the shaft and stopped near the same; and means tending to hold it yieldingly toward the shaft, said element being located in the path of the starting-handle so as to be crowded away.

from the shaft as-said handle is engaged by the latter; and connections from said ele-' ment to the means for adjusting the ignitercontroller, by which such-movement away from the shaft sets the controller in position for affecting the time of ignition; the handle .having a shoulder back of which said element becomes engaged when the handle isengaged with the shaft,-whereby such shoulder tends to resist disengagement of the handle. 11. In an explosive-motor, in combination with a controller forthe igniter, adjustable to vary the timeof ignition in the cycle of. the

engines movement, a shaft by whose rotation the engine may be started; a handle for;

operating such shaft having its hub which passes onto the shaft adapted to engage the latter only when rotating in one direction; a lever pivoted so as to swing transversely of the shaft, and a sprin tending to hold it theretoward, whereby t e lever is located in the path of the starting-handle so'as to be crowded away from the shaft by the application of the handle thereto; means by which the lever'engages the handle to retain it on the shaft; and connections from the lever by which'this movement away from the shaft. ad usts the igniter-controller to position affectmg the time of ignition.

. .12. In an explosive-motor, in combinationwith a controller for the igniter, adjustable to vary the time of ignition in the cycle of the engines movement, a shaft by whose rota tion the engine may be started; a handle for operating such shaft, having its hub which passes onto the shaft adapted to engage the latter only when rotating in one direction; a lever pivoted so as to swing transversely of the shaft and a spring tending to hold it theretoward; the handle and said lever being relatively formed so that the introductionof the handle to position of enga ement with the shaft crowds the lever away om the latter, and the handle havin a groove with which the lever-is adapte to' be engaged when the handleis engaged with the shaft,

whereby said lever serves to retain the handie in such engagement, and connections from the lever by which its movement away passed onto the starting-shaft and provided at the end with ratchet-teeth for engaging theshaft for-rotation in one direction, and a peripheral groove back of the ratchet-teeth for engagement of a retaining device, .the ratchet-toothed end of the hub being conically tapered, widening from the points of the teeth back toward the groove to adapt it to enter past such retaining device.

15. In an explosive-motor, in combination with a shaft by whose rotation the motor may be started, a device mounted apart from said shaft for controlling the time of ignition in the cycle of the engines action; a .lever and connections by which it moves said controlling device to vary the time of ignition, said lever extending in proximity to the starting-shaft in position to be encountered and moved by means for rotating the shaft in the movement of said means toward position of operative engagement with the shaft.

16. In an explosive-motor, in combination with a shaft by whose rotation the motor may be started; a device apart from said shaft for controlling the time of i nition in the cycle 'ofthe motors action; a ever and connections by which it moves such cohtrolling device to vary the time of ignition, said lever extending in aposition obstructing the operative en agement ofthe'starting-handle,

and arrange to adjust the controller for af- .shaft, and at sfil points corresponding to a vanced ignition obstructing the engagement of the starting-handle with the shaft, said lever being movable at will from such obstructing position to position corresponding to delayedi nition.

18. 11 an BXPIOSIVGrIIlOtOI', in combination with a shaft by which the motor may be started, a device apart from such shaft which controls the time of ignition in the cycle of the motors action; a lever and connections by which it moves the controlling device to vary the time of ignition, said lever extending in proximity to the, starting-shaft and adapte to stand in position obstructing the operative engagement of the starting-handle, and adapted to be forced by the latter out of obstructing position, the lever being arranged and connected so that such forced movement adjusts the controller for affecting the time of ignition.

19. In an explosive-motor, in combination with a controller for the igniter adjustable to,vary the time of ignition in the cycle of the motors movement, a shaft by whose rotation the motor may be started; an element arranged to move transversely of the shaft, and laterall stopped near the same, and adapted to e crowded laterally away from the shaft by the engageemnt of the startinghandle with the latter, and connections by which such movement of said element away from'the shaft operates the adjusting means of the igniter-controller to set the latter at position for afiecting the time of ignition.

In testimony whereof- I have hereunto set my hand, at Kenosha, Wisconsin, in the presence of two witnesses, this 5th day of June, A. D. 1901.

. THOS. B. JEFFERY.

In presence of CHAS. S. BURTON, ADNA H. BOWE. Jr.

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