US1566888A - Ignition system - Google Patents

Description

Dec. 22, 1925 1,566,888

G. LucKEMAN IGNITION SYSTEM Filed Dec'. 22, 1924 INVENTOR wlTNEssEs Gunherl/wnlremm Patented Dec. Z2, 1925.

UNITED STATES PAT-ENT QFFECE.

IGNITION SYSTEM. Y

Applcationled December 22, 1924. Serial No. x757,560.

To all whom t may concern.'

Be it known that I, GNTHER LUGKEMAN, a citizen of the United States, and a. resident of Morseinere, in the county of Bergen and State of New Jersey, United States of America, have invented a new and Improved Ignition System, of which the following is a full, clear, and enact description.

This .invention relates to timers for the well known Ford ignition system, and has for its object the provision of a device for causing the secondary current to produce a spark in the plugs.

A further object of the invention is the provision of a device causing distribution of the secondary current from a single coil to the spark plugs of the well known Ford ignition system.

This invention will be best understood f from a consideration of the following detailed description, in view of the accompanying drawings forming part of the specification; nevertheless it is to be understood that the invention is not contined to the disclosure, being susceptible of such changes and modilications which shall deline any material difference from the salient features of the invention as expressed in the appended claim.

Fig. 1 is a front view of a timer constructed in accordance with the principles of my invention.

Fig. 2 is a vertical section taken along the line 2-2 of Fig. 1.

Fig. 3 is a vertical section taken at right angles to the section shown in Fig. 2 and along the line 33 of Fig. 2.

Fig. 4 is a view in elevation of a primary distributor.

Fig. 5 shows more or less diagrammatically an ignition system.

Referring more particularly to the drawings, 1 designates a coil box having primary terminals 2 and 3 for connecting the primary coil with the primary circuit of the distributor.

A source of current 4 is connected through terminal 2 with the primary coil and the circuit is completed through a wire 5, a carbon contact brush 6, a distributor 7 timer in which fthe distributor 7 "is mounted and locked upon the reduced portion of the shaft by a nut 11. The insulated member 10 has aprojection 12 carrying a brush 13 slidably mounted in a pocket 14 of the projection 12 and is inantained in an operative position by means of a. spring engaging a brush 15 screwed into a threaded perforation at the inner end of socket 14. The spring presses in opposite directions for forcing the brush 13 in an outwardly projected position. The casing 16 formed of insulating material is circular in formation and upon its inner periphery is provided a plurality of spaced contacts 17, 18, 19 and 20. These contacts as shown in Fig. 5 are electrically connected by suitable wires with their respective spark plugs generally designated by the numeral 21. The contacts 17 to 2O inclusive are adapted to be engaged by the brush 13 which is electrically connected by means of a spring 22 with the brush 15 which is adapted to be in constant contact with a collector ring 23. The collector ring 23 is electrically connected by a wire 24 passing through the .insulated casing 16 with the terminal 25 of the secondary coil. The wires leading from the contacts 17 to 2O inclusive to the spark plugs 21 and the wires leading from the collector ring to the secondary binding post 25 are f vided with an insulated plug 29 carrying the carbon contact brush 6. The wires general" ly designated by the numeral 30 form a con nection between the spark plugs 21 and the contacts 17 to 20 inclusive.

The operation of my device is as follows:

The primary circuit of the battery 4 is completed as described through the primary coil of the box 1 and is periodically closed through the brush 6 yengaging the contacts 31, 32, 33 and 34 consecutively and at the. time the brush 13 makes Contact with the respective stationary contacts 17 to 2O inclusive. As the primary current is periodically closed the secondary current will periodically flow through the collector ring i 23, the brushes 15 and 13 and through the ,contacts 17 to 2O consecutively and cause sparks in the respective spark plugs 21. In this manner the secondary current is the medium for producing a spark in said plugs.

A cap screw 29 is threaded into the plug 29 and maintains a spring 35 -under tension for forcing the brush 6 into engagement with the contacts 3l to 34 inclusive. The spring and screvv electrically connect brush 6 and Wire 5.

The plate E26 which is secured to the casing` is provided With an opening 36 adapted to receive the bent end of a link Which is connected with the spark lever mounted adjacent the seat of the driver. Vlhen the spark lever is operated the plate is oscillated to cause rotation of the casing and thereby advance or retard the spark, or, in other Words the several brushes are angularly displaced relative to the cam shaft 8.

It Will be noted that the outer projecting end of the screw or brush 15 is slightly spaced from the ring which Will provide a jump gap for the secondary current When the secondary circuit is closed.

A timer-distributor uni't for an ignition system having a primary and secondary circuit and spark plugs, comprising in combination' a rotatable member having spaced con'tacts, a brush adapted to periodically conn-ect the spaced contacts With the primary circuit, a conductor ring electrically connected with the secondary circuit, sta.

tionary contacts adapted to be electrically connected With the spark plugs, a pair of brushes periodically connecting the ring With the stationary contacts, a casing formed of insulating material and carrying the sta tionary contacts, and a cover for the casing, said first mentioned brush being slidably mounted in the cover.

GNTHER LUC/KIEM A, N

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