US1745754A - Ignition cut-out for internal-combustion motors - Google Patents

Description

G. A. GILLEN Feb. 4, "1930.

IGNITION CUT-OUT FOR INTERNAL COMBUSTION MOTORS Filed March 20, 1924 2 Sheets-Sheet l BATTERY INVENTOR G eorge A. G illen BY 1,4,4 v I ATTORNEY Feb. 4, 1930. GILLEN 1,745,754

IGNITION CUT-OUT FOR INTERNAL COMBUSTION MOTORS Filed March 20. 1924 2 Sheets-Sheet 2 way 1 W i m E, 27

. INVENTOR George A Gillan a 1,4, I v

- ATTORNEY Patented Feb. 4, 1930 UNITED STATES PATENT OFFICE GEORGE A. GILLEN, OF JERSEY CITY, NEW JERSEY, ASSIGNOB, BY MESNE ASSIGN- MENTS, TO GILLEN, KIMMEY, BAKER SYNDICATE INCL, OF NEW YORK, N. Y., A DO- MESTIC CORPORATION IGNITION GUT-OUT FOR INTERNAL-COMBUSTION MOTORS Application filed March 20, 1924. Serial No. 700,579.

This invention relates to improvements in ignition cut outs for internal combustion motors, and its object is to provide an ignition cut out arranged to be used in connection with a transmission lock such as is illustrated and described in my Patent Number 1,448,737 issued on the 20th day of March, 1923.

Another object of the invention resides in the provision of a device which may be readily installed in the ignition circuit of a motor without in any manner changing the construction or the arrangement of elements associated therewith and which will at the same time render operation of the motor wholly impossible until the lock is released.

lVith the above and other objects in view which will become more apparent as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts which will be fully set forth in the following specification, claimed and illustrated in the accompanying drawing, in which,

Figure 1, is a perspective view in diagram of a coil box and coils showing my improved cut out in place,

Figure 2, is an edge view of the cut out,

Figure 3, is a perspective view of the transmission lock cover plate, showing the entrance of the cut out cable thereinto,

Figure 4, is a vertical sectional view through the lock cover plate showing my cut out switch adapted thereto,

Figure 5, is a sectional view taken on line 5 of Figure 4, and

Figure 6, is a perspective view of my cut out block.

Referring to the drawings in detail, the numeral designates the coil boxes used in the usual Ford ignition system, each of which is provided on its under side with a contact which normally rests upon and in electrical contact with the spring tongues 11 of a bus bar 12. A conductor 13 leads from the strip or bus bar 12 to the ignition switch 14, one contact of which is connected to the strip 15, while the other contact is connected to the strip 16. These strips extend around the coils as shown and terminate in the posts 17 and 18 respectively which in turn have connected thereto the magneto and battery leads respectively. lVhile there may be slight variations from the description above, it-is generally descriptive of ordinary ignition circuits such as used on the Ford motor and forms no part of this invention.

In order to provide an effective cut out of the ignition circuit above described, I provide a cut out unit designated generically by the numeral 19 which comprises a pair of strips of conducting material 20 and 21 which are held in spaced parallel relation by a suit able dielectric such as hard rubber or fibre 22.

This cutout is inserted between the spring tongues 11 and the contacts on the bottoms of the coil boxes as shown in Figure 1, and when in such position, it will be obvious that no current will pass into the coil boxes from the strip or bus bar 12.

In order that the strips 20 and 21 may be brought into electrical connection to establish the ignition circuit, a pair of connectors 23 and 24 are provided, each of which is connected to its respective strip, and secured to said connectors are the conductors 25 and 26 which are housed within an armored cable 27 leading into the transmission cover plate 28, illustrated in Figure 3.

As shown the plate 28 is provided with a tubular standard 29 having mounted therein a sliding plunger 30 for operating the transmission locking means (not shown). This plunger is provided at its upper end with a pintumbler locking cylinder of any approved design, and is normally urged upwardly under the influence of a compression coil spring.

Secured in the plunger 30 intermediate its ends is a block 31 of fibre or other suitable insulating material which when the plunger is depressed into its locked position is in position to engage the contact springs 32 in order to interrupt any current flowing therebetween. The contact springs 32 above referred to are carried upon an insulating block 33 which is mounted in a chamber in the lower end of the column 29 and the springs 32 are connected to the ends of the conductors 25 and 26. The insulating block 31 carries a contact plate 80, in position to engage contact springs 32 when the plunger is in its upper position.

In operation when the plunger is in raised 5 or unlocked position, it will be seen that electrical communication is established between the springs 32, so that the current entering the bus bar 12 through either of the posts 17 or 18 will enter the plate 21 andflow'through the conductor 26 into its respective contact spring 32, thence through the plate 30 into the opposite contact spring 32 from which it will be carried through the conductor 25 to the plate 20 from which it enters the coil boxes. When the plunger is in depressed or locked position, it willbe seen that the insulating block 31 will be in position to engage the springs 32, and the circuit for the current will then be interrupted.

WVhile in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from'the spirit and scopeof the inventionas claimed. 7

What is claimed is Ina device of the character described, the

combination with ignition coils having contacts and a bus bar positioned for engagement by said coil contacts, of'a cut-out interposed between said bus bar and the coil contacts and comprising conducting strips separated 35 by insulation and connecting means by 'which said conducting strips may be electrically connected to thereby establish electrical connection between the coil contacts and the bus bar.

40 Signed at New Y0rk,'in the county and State of New York, this 17th day'of March,

GEORGE A. GILLEN.

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