US1244260A - Igniter mechanism for internal-combustion engines. - Google Patents

Description

H. R. VAN DEVENTER. IGNITER MECHANISM FOR INTERNAL'COMBUSTION ENGINES. APPLICATION FILED-DEG. 24. 1914.

Patented 0012. 23,1917.

2 SHEETSSHEET (Juno-1 1 601 H. R. VAN DEVENTER, mama MECHANISM FOR INTERNAL COMBUSHON memes.

APPLICATION THE-D DEC 24' 3914.

Patented Oct. 23,1917.

z SHEETS-SHEET 2 5 w undo o residing at ter and State of South Carolina, have in- MESN E ASSIGNMENTS,

JERSEY, A CORPORATION OF NEW JERSEY.

IGNITER MECHANISM FOR IN TERNAIJ-COMBUSTION ENGINES.

Specification 01' Letters Patent.

Patented Oct. 23, 1917.

Application filed December 24, 1914. Serial No. 878,931.

To all whom it may concern:

Be it known that I, HARRY RANDOLPH VAN EVENTER, a citizen of the United States,

Sumter, in the county of Suminternal combustlon engines, and has for I e cient ignition unit, self-contained and upon the movable electrode of magneto removed and a 'tion engines,

cylinder close association with the igniter proper of the engine.

Briefly and specifically stated, this invenigniter, a flange or frame also connected to the igniter; and carrying abutments outwardly extending from the engine cylinder, with a magneto mounted on the bracket, carrying an actuator on its rotor or oscillator shaft, said actuator being connected by resilient or other energy storing means, such as coil springs, with the a utments or posts on the flange or frame. The actuator, being carriedon the magneto, itself carries a projecting member which at the proper instant in each actuation, acts the igniter.

It is to be understood that the foregoing statement is made specific for purposes of definition and not of limitation. One of the great advantages of this construction is its extreme simplicity, and the small number of parts required, While adhering to a high standard of efilciency. This unit is applicable to a great variety of internal combus; and further advantages and features of invention will be sufliciently ap parent to those skilled in the art, from the, foregoing detailed description.

y invention is illustrated in the a'cc0mpanying drawings in'wh1eh:-

Figure 1 is a top plan, view.

Fig. 2 is a front'view'of F 1g. 1 with the portion of its shaft s own in section.

Fig. 3 is a left side view of Fig. 1, with the pull springs and parts of the engine removed for the sake ofclearness.

In the drawings, a section of the eng1ne is shown at 1 through which the -in fixed relation thereto, a tri the combustion 2, on the inside, contact device contact member 4 igniter body 2 projects into chamber. The igniter body carries a make-and-break consisting of the fixed suitably insulated from and the movablecontact 3 carried on the nner end of the igniter shaft 15, journaled igniter shaft 15, the rotor shaft carrying,

This trip lever is held normally in the position shown by the pull springs 12 and 13 held at.their outer ends on roller bearings 10 and 11 journaled at the outer ends of the posts 8 and 10 which in turn are carried by the arms -7 and 6, respectively, the inner ends of the pull springs taking hold of the trip lever through the roller bearings 41 and 42. The right'hand arm of the trip lever 14 carries a firing finger 16 whose motion is transmitted to the igniter operating arm 22 through an adjustable abutment screw 23 threaded into the end of the op- 'erating lever. Movement of the trip lever It is effected by means of the trip finger 18 forming a part thereof and adapted to be engaged by the end 19 and rotated counter-clockwise against the tension of the pull springs until the end of the push rod moves out of the arc scribed by the finger 18, whereupon it is suddenly returned to the normal position shown, by the power stored in the pull springs. The operation of'the push rod is accomplished by connecting it with a movable part ofthe engine in a well known manner. Each time the trip lever is suddenly released, in the.

the igniter body,

21 of the push rod tqle fixed contact separate.

torsion spr ng 24 which moves the contact 3 cf the igniter up out of engagement with I 4. It is to be noted that-the trip lever 14 is ositioned on the rotor shaft 40 in such re-- ation to the'rotor and screw 23 so adjusted that when the trip lever is released the peak of the current wave generated will occur at the same instant that the igniter contacts tween the windings of the magneto 26 andl the fixed contact 4 ,by means. of a suitable conductor 29 extending between the mag-' "ang shaft for said igniter carri d neto binding post 30 and the igniter binding Electrical connection is made be-l post 31, the other arm of the circuit being 1 the frame work as usual. 1 The timing of ignition is accomplished by the provision of an adjustable guide for the push rod 19, said guide consisting of the roller bearing 20 mounted eccentrical' on the shaft 36 and adapted to be adjuste any about said shaft by means ofv a arl fidiidle 37 Thus' the path of movement'of the end 21 of the push rod may be raised or lowered through different degrees, respectively in a relatively early or late release of the trip lever, according to the adjustment of the handle 37 in a manner apidle stroke of the engine,

parent.

It is further provided that the operation of the'igniter shall be prevented during the as in the case of hit-and-miss engines, or when the exhaust I, 'valve is held open by the governor, by the pivoted to the arm use of an independent lifting means for the push rod consisting of a bell crank lever 34 6 and adapted to be -movedinto the dotted line position. by the pin 33 on the exhaust valve push rod 32 which is actuated in a known manner at the intervals mentioned. While I have herein shown and described indet'ail a preferred embodiment of my invention, it is to be understood that various modifications thereof may be made without departing from the spirit of the invention, which modifications are contemplated by me. Having thus described my invention, what I claim and desire to secure by Letters v ing shaft for said igniter carried by said frame, an operating shaft for said magneto, saidshafts being in alinement, a trip lever ,carried by the shaft of the magneto, an arm carried by the shaft of the igniter, means carried by the trip lever for engaging the arm carried by the shaft of the igmter, and ,means for actuating said trip lever.

, 2. An ignitcr mechanism f r internal com- ,bustion engines comprising a supporting frame, an igniter arried by said f am a magneto mounted on said frame, an operatby said {frame an o crating shaft for said m g Esaid shafts in in alinement, a trip lever {carried by the s aft of the magneto, an arm ,carried by the shaft of the igniter, means gmrried by the tri lever for engaging the .arm carried by the shaft of the igniter, opposed springs connected to said trip lever .jflIld to said frame for actuating the magneto resulting Qshaft when said trip lever is released, and means for actuatin said trip lever.

8. Anigniter inec anism 1 inte na comibustion en ines comprising a su porting frame, an ignitcr carried by said rame, a magneto mounted on said frame, an operating shaft for said igniter carried by said frame an operating shaft for said magneto,

said shafts belng 1n alinement, a trip lever carried by the shaft of the magneto, an arm carried by the shaft of the igniter, means carried by the trip lever for engaging the arm carried bythe shaft of the igniter, opposed springs and to said rams for actuating the magneto shaft when Said trip lever is released, said trip lever having a projecting arm, and a push rod for engaging Bald arm for setting and releasing the trip. e

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

HARRY RANDOLPH VAN DEVENTER.

Witnesses:

EDNA Islam, E. H; Rants.

connected to said trip lover" I

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