US1492139A - Parking lamp for vehicles - Google Patents

Description

April 29, 1924.

E. H. MONROE PARKING LAMP FOR VEHICLES Filed June 5, 1920 all v .along EDGAR H. MONROE, 0F WASHINGTON, DISTRICT OF COLUMBIA.

PARKING LAMP non VEHICLES.

application led June 3,

To all whom t my concern.'

Be it known that I, EDGAR H. MONROE, a citizen of the United States, residing at 901 Virginia Avenue SW., Washington, District of Columbia, have invented a new and useful Improvement in Parking Lamps for Vehicles, of which the following is a speciication.

The object of the invention is to provide an eflicient means for furnishin a parking light 'adaptable to vehicles of a l'types but more especially designed for automobiles, to dispense with the necessity of leaving either the head or tail lights, or both, in operation, and furthermore to provide a device for the purpose which, regardless of theI position of the machine with relation to the road, that is, whether parked parallel or at an angle thereto, will display light in both forward and. rearward directions the road or vehicle path so as to be visib e on either line of approach, and also,

articularly, to provide a means whereiie maximum volume of li ht, or light value, will be concentrated in t e directions best suited to the urpose of disclosing the location of the ve icle carrying the lamp, to the end that the minimum candle power may be utilized as a measure of economy in maintenance. u

'With these general objects in view the and invention consists in a construction and arrangement of reiecting media and display zones of which a typical and atthe present time a preferred embodiment illustrated 1n the accompanying drawin it being understood however that mod' cations thereof are contemplated and obviously may be resorted to within the scope of the a pended definition without departure from t e princi le involved.

eferrng to the drawin Figure 1 is a view of t elamp showing its application to avehicle'.

Fig. 2 is a face view of the lamp proper.

Fig. 3 is an edge View of the'same.

Fig. 4 -is a sectional` view taken inthe plane of the axis ofthe lamp and includinthe housing.

ig. 5 is an edge view of the encased lamp to show the mounting thereof upon a wheel guard.

In the illustrated embodiment the lamp` consists essentially of opposed or counter reflecting media such as rs, 10 and 1920. Serial N0. 386,163.

11, preferably designed on parabolic curves, with a centrally interposed source of light shown as an incandescent lamp globe 12, which may be of relatively low candle power to minimize the consumption of current.

The reflectors are provided respectively1 with light penetrable `areas or zones 10 and 11a, of any preferred conformation, as sector shaped, with those of one medium disposed opposite or in the path of rays of light reflected from the other medium, and the aggregate of the areas of the light penetrable zones of each medium substantially equal to or approximating the area of the reiiecting surface of the other medium. v

These light penetrable zones may consist of unobstructed openings in the mirrors, formed by cutting away or stamping out the material, and the annular series of` openings may be supplemented by central light penetrable zones 10b and 11", with the edges .of the disks forming the media flanged as at 13 and suitably secured in a dust and moisture excluding casing or housing 14 having transparent wallsv15 for freely ex- 80 posing the opposite light diffusing faces of the lamp.

The lamp bulb may be detachably seated in a socket 16 carried by a radially disposed post 17 serving as a support for the 85 ad]ustment ofthe lamp to insure opposite projection of the light in the desired direction regardless of the position of the parked car to which the device is attached.

The advantage of the lamp resides in the concentration of the available light value @5 in the directions of approach to the car from the front and the rear, and in producing with a moderate power or expenditure of fuel an illumination which is dlscernible and will attract attention at safe distances to property warn the drivers of approachin vehicles and thus minimize the risk of co ision.

l claim:

1. A parking lamp for vehicles having opposed reversely concaved reecting media and an interposed lighting unit, each medium bein-g subdivided on diametral lines to provide alternately disposed sector shaped light penetrable and reectng zones .arranged respectively opposite alternately zones of the other medium.

3. A parking lamp for vehicles having stationary opposed reversely 'concaved relectingmedia and an interposed lighting unit, each medium being subdivided onl diametral lines to provide alternately dis-- posed sector shaped light penetrable and reflecting zones of equal areas, arranged respectively opposite alternately disposed sector shapedlight reflecting and light penetrable zones of the other medium.

4. A parking lamp for vehicles having opposed reversely concaved parabolic reflecting media and an interposed axially arranged lighting unit, each medium being subdivided on diametral lines to provide alternately disposedsector shaped light penetrab'le and reflecting zones of equal areas, arranged respectively opposite alternately disposed sector shaped light reflecting and light penetrable zones of the other medium.

5. A parking lamp for vehicles having st-ationary opposed i'eversely concaved parabolic reflecting media for projecting light beams in parallel lines, and an interposed axially arranged lighting unit, each medium being subdivided on diametrallines to provide alternately disposed sector shaped light penetrable and reflecting Zones of equal areas, arranged respectively opposite alternately disposed sector shaped light reflecting and light penetrable zones kof the other medium, the peripheries of the opposed media being in a common plane with the lighting unit and perpendicular t0 the paths of the beams.

EDGAR H. MONROE.

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