US1069561A - Igniting mechanism for internal-combustion engines. - Google Patents

Description

A. L. MUELLER.

IGNITING MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED APR. 12, 1911.

Patented Aug. 5, 1913.

[/VVE/VTOR W1 TNESSES ALBERT if. MoEfJ'LER, OF MIsHIco'r, Wisconsin.

IGNI'TING MECHANISM FOR InTnRivAL-coniausfion enemas.

Specification of Letters Patent.

' Patented Aug. 5,1913.

Application filed April 12, 1911. "serial N o. 620,667.

To all whom it may concern.

Be it known that I,AL'BERT L. MOELLER, a citizen of the United States, residing at Mishicot, in the county of h/Ianitowoc and State of Wisconsin, have invented certain new and useful Improvements in Igniting Mechanism for Internal-Combustion Engines, of which the following is a specification.

The present invention relates to an electrical ignition system for internal com-bustion engines.

An important object of the invention is to provide means of the above mentioned character, which may be adjusted to produce an "early or late spark.

A further object of the invention is to provide an electrical ignition system which possesses great simplicity of construction, is cheap to install, and is reliabl'e in operation.

For a full understanding fofth'e present invention, reference is to be had to the following description and the accompanying drawings, in which Figure 1 is a perspective View of the cylinder of an explosive engine, showing my invention applied thereto, the Wiring being omitted; Fig. 2 is an end view of the same, the circuit being shown; Fig. 3 is a detail section through the contact plate and the rotatable element to which it is attached; Fig. 1 is a detail section'showing the manner in which the contact blade or spring is adjustably mounted upon its supporting rod; and Fig. 5 is a detail section through the head of the cylinder of the engine, show ing in elevation a plug member and associated elements of the circuit.

Throughout the following detail description, and on the several figures of the drawings, similar parts are referred to by like reference characters.

Referring particularly to the drawings, the numeral 1 designates the cylinder of an explosive engine of the horizontal type.

The numeral 2 designates a centrifugal governor of any well known or preferred type, and used for the ordinary purpose well known in the art. This governor receives its rotation from a horizontal rotatable shaft 3, through the medium of bevel gears 4 and 5.

The numeral 6 designates a pivoted lever, which serves to operate the exhaust valve (not shown) as is customary in this hori- Zontal type of engine. The pivoted lever 6 i is provided with an opening 7 for adj ustably receiving a supporting rod 8, which is clamped in adjustment at different positions by a bolt '9. The rod 8 is provided at one free end with an opening 10 for receiving a bolt 11, which passes through an opening in a contact blade or spring 12. The bolt 11 carries a clamping nut 13, by the manipulation of which theblade or spring 12 may be manually shifted or swung and subsequently locked in a desired position. The contact blade or spring 12 is insulated from the rod '8 and bolt 11, 'asshown.

A sleeve 14 is mounted on the free end of the shaft 3 to be rotated thereby, said sleeve having a contact plate 15 rigidly connected therewith and insulated therefrom, as shown. A bolt 16 is attached to the contact plate15 at its center, and carries a freely swivel'ed sleeve 17, for a purpose hereinafte'r described. The contact plate 15 extends at one end beyond the periphery of the sleeve 14 and has its end provided with fingers or terminals 18 and 19, which are bent in opposite directions to occupy dilfereht planes, one in advance of the other. It will thus be seen that the finger, or terminal 18 (assuming the shaft 3 to be rotating in the direction of the arrow) will contact with blade 12 to produce an early spark, before terminal 19 could so contact to produce a late spark, if the blade 12 was in the proper position to be engaged by both fingers or terminal's. The terminals 18 and 19 may be suitably spaced apart, depending upon the change in time that it is desired to effect between the sparks. It is obvious that the present construction only provides for two differently timed sparks, but any suitable number of the same may be obtained by increasing the number of terminals or contact fingers, each of which would, of course, be disposed in a different vertical plane.

The numeral 20 designates a plug member disposed in an opening formed in the head of the cylinder 1, the same being held therein by a clamping ring 21. This plug member is insulated from the head of the cylinder and the clamping ring 21, as shown. The plug member 20 has binding posts 22 and 23 connected therewith. The plug member 20 has a central opening for receiving a spark plug 24:, including the ordinary outer and inner insulated elements carrying the sparking points. The outer sparking point thus has electrical connection with the plug member 20, while the inner sparking point is electrically connected with a binding post 25.

It is to be understood that the motion of the rod 8, owing to the movement of the lever 6, will not interfere with the contact of the spring member 12 with the terminals 18 or 19 at the proper time, the movement of the lever 6 being such that the spring member 12 reaches the approximate position shown in Fig. 4 when the plate 15 in its path of rotation makes contact through its terminals 18 or 19, as the case may be, with said spring member.

The operation of the system is as follows: lVhen it is desired to obtain an early spark, the contact blade or spring 12 is manually swung so as to assume a position in the path of travel only of the finger or terminal 18. When this finger 18 engages the free end of the'blade or spring 12, the primary circuit is closed. The coil 28 is of ordinary construction having primary and secondary windings. The low tension or primary circuit is through the wire 27, the primary winding in the coil 28, wires 29 and 31, the engine or plug member 20, and back to the source of current 26, through wire 27. This circuit induces a current in the high tension circuit which passes through the wires 29 and 31, the plug member 20, jumping to the spark plug 2 1 and back to the coil 28 through the wire 34. It is obvious that by shifting the blade or spring 12 so that it will engage only the finger 19, a late spark will be obtained.

Having thus described the invention, what is claimed as new is: r

1. The combination with an explosive engine including a cylinder and rotatable ele ment, of spark producing means mounted Copies of this patent may be obtained for five cents each, by addressing Washington, D. 6.

on the cylinder, a contact plate provided with fingers arranged one in advance of the other and disposed in different vertical planes, a contact blade disposed near the rotatable element and adapted to be shifted to bring it in the path of travel of either of the fingers, and a circuit connected with the spring producing means, the contact plate and contact blade.

2. The combination with an explosive engine including a cylinder and rotatable element, of a spark plug mounted on the cylinder, a contact plate mounted on the rotatable element and having contact fingers disposed one in advance of the other in different vertical planes, a support, a contact blade adjustably mounted on the support to be moved into the path of travel of either contact finger, and circuit connections between the spark plug, contact plate, and contact blade.

3. The combination with an explosive engine including a cylinder and rotatable element, of spark producing means mounted on the cylinder, a contact plate mounted on the rotatable element and having one end provided with spaced oppositely extending fingers arranged one in advance of the other in different vertical planes, a support, a contact blade pivotally mounted on the support so that its free end may be swung into the path of travel of either of the fingers, and circuit connections between the spark producing means, contact plate, and contact blade.

In testimony whereof I alfix my signature in presence of two witnesses.

ALBERT L. MOELLER.

WVitnesses:

ED. M. GRnTz, E. R. ZE'MM.

the Commissioner of Patents.

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