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Publication numberUS2858391 A
Publication typeGrant
Publication dateOct 28, 1958
Filing dateJun 5, 1957
Priority dateJun 5, 1957
Publication numberUS 2858391 A, US 2858391A, US-A-2858391, US2858391 A, US2858391A
InventorsHinton Frank R
Original AssigneeHinton Frank R
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automatic ignition cut-off
US 2858391 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Oct. 28, 1958 F. R. HINTON AUTOMATIC IGNITION CUT-OFF Filed June 5, 1957 Frank R. Hinton INVENTOR.

United States. Patent AUTOMATIC IGNITION CUT-OFF Frank R. Hinton, Cleburne, Tex.

Application June 5, 1957, Serial No. 663,635

Claims. (Cl. 200-6152) The present invention relates generally to motor vehicles such as automobiles, tractors, etc., and has for its primary object to provide novel weight operated means for automatically opening the ignition circuit of the engine in the event the vehicle should overturn.

Another very important object of the invention is to provide an automatic ignition cut-off of the character described which may be expeditiously installed for operation on the vehicle.

Other objects of the invention are to provide an automatic ignition cut-off of the character set forth which will be of comparatively simple construction, durable, compact, highly efficient and reliable in operation and which may be produced at low cost.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a perspective view, showing an automatic ignition cut-off embodying the present invention installed; and

Figure 2 is a view in vertical longitudinal section through the device per se.

Referring now to the drawing in detail, it will be seen that reference character 3 designates a portion of the usual internal combustion engine of a motor vehicle 4. The ignition system of the engine 3 comprises a coil 5 to which a conductor wire 6 is detachably connected.

The embodiment of the present invention which has been illustrated comprises an arcuate tube 7 of suitable material which is secured by clamps or straps 8 on the fire Wall or dash 9 of the motor vehicle 4. The upturned ends of the arcuate tube 7 are provided with closures 10 which are hingedly mounted on said tube, as indicated at 11. The construction and arrangement, it will be observed is such that the elements 10 close by gravity on the ends of the tube 7. At its lowest point the arcuate tube 7 has formed therein a circular opening 12 providing a seat for the reception of a weight in the form of a metallic ball 13. Of course, the spherical weight 13 is operable in the tube 7.

Fixed beneath the tube 7 at an intermediate point and communicating therewith through the opening 12 is a chamber 14. Depending from the chamber 14 and communicating therewith is a tubular guide or housing 15 of copper or other suitable material. It will be noted that the tubular guide or housing 15 extends to a point adjacent the coil 5 and, in the installation shown, the free end of said guide or housing is secured, as at 16, to the engine 3.

The chamber 14 is for the reception of a chain 17 having one end swivelly connected to the weight 13. The other end of the chain 17 is connected to a resilient wire or rod 13 which passes slidably through the tubular I 2,858,391 Patented Oct. 28, 1958 guide or housing 15 and has its other end connected to the coil wire 6, as at 19.

It is thought that the operation of the invention will be readily apparent from a consideration of the foregoing. Briefly, the spherical metallic weight 13 normally reposes by gravity in the opening or seat 12 in the arcuate tube 7. However, should the vehicle 4 lean dangerously or overturn, the spherical weight 13 leaves the opening or seat 12 and rolls by gravity toward the lower end of the tube 7 and drops from said tube until all of the chain 17 has been payed out. When this occurs the fall of the spherical weight 13 is arrested and the resulting jerk yanks the wire 6 out of the coil 5 for opening the ignition circuit and instantly stopping the engine 3. Clamps 20 secure'the chain chamber 14 to the arcuate tube 7.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. An automatic ignition cut-01f for motor vehicles comprising: an arcuate tube having an opening in its lowermost portion, a spherical weight operable by gravity in the tube and engageable in the opening, and means connecting said weight to the ignition coil wire of the motor of the vehicle for disconnecting said wire from the coil should said vehicle overturn.

2. An automatic ignition cut-off for motor vehicles comprising: an arcuate tube having an opening in its lowermost portion, a spherical weight operable by gravity in the tube and engageable in the opening, and means connecting said weight to the ignition coil wire of the motor of the vehicle for disconnecting said wire from the coil should said vehicle overturn, said means including a chain having one end connected to the weight, and a resilient rod having one end connected to the other end of the chain and its other end connected to the coil wire.

3. An automatic ignition cut-oft for motor vehicles comprising: an arcuate tube having an opening in its lowermost portion, a spherical weight operable by gravity in the tube and engageable in the opening, and means connecting said weight to the ignition coil Wire of the motor of the vehicle for disconnecting said wire from the coil should said vehicle overturn, said means including a chamber mounted on the tube and communicating therewith through the opening, a tubular guide connected to said chamber, a resilient wire slidable in the guide and having one endconnected to the coil wire, and a chain in the chamber having one end connected to the wire and its other end connected to the weight for operatively connecting said weight to the coil wire for disconnecting same from the coil.

4. An automatic ignition cut-off for motor vehicles comprising: an arcuate tube mounted on the vehicle and having a circular opening therein at its lowest point, gravity closed closures hingedly mounted on the end portions of said tube, a spherical weight operable by gravity in the tube and engageable by gravity in the opening, a chamber mounted beneath the tube and communicating therewith through the opening, a tubular guide connected to the chamber, a chain in the chamber having one end connected to the spherical weight, and a resilient wire operable in the tubular guide and having one end connected to the other end of the chain and its other end connected to the ignition coil wire of the motor of the vehicle for 3 4 disconnecting said wire from the coil should said vehicle ignition circuit to open said circuit in response to projecoverturn. tion of the weight out of said, lowermost end of the 5. An automatic cut-off for the ignition circuit of a tube. motor vehicle comprising: an arcuate tube having upturnedzends'and mounted on the vehicle for'tilting to dis- 5 References Cited In the file of thls patent pose either end lowermost by overturning of the vehicle, UNITED STATES PATENTS a; gravityactuated-weight: in said tube projectable out of the end of the tube-disposed lowermost by tilting .of the 2,253,957 Kammerdmer 1941 tube, and meansoperatively connecting-theweight to the 2,708,226 Dixon May 10, 1955

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2253957 *Mar 11, 1939Aug 26, 1941Kammerdiner James AAutomatic circuit-breaking electric switch
US2708226 *Apr 20, 1954May 10, 1955Dixon Adam CIgnition circuit breaker
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7521817 *May 3, 2006Apr 21, 2009Donald GorsSystem and method for reducing the chance of fires and/or explosions
US20070257557 *May 3, 2006Nov 8, 2007Donald GorsSystem and method for reducing the chance of fires and/or explosions
Classifications
U.S. Classification200/61.52, 200/85.00R, 180/283
International ClassificationH01H35/02
Cooperative ClassificationH01H35/02
European ClassificationH01H35/02