US1205916A - Illuminating apparatus. - Google Patents

Description

E. F. MEADOR. ILLUMINATING APPARATUS. APPLICATION FILED MAY 3. 1915.

Patented Nov. 21, 14916.

oErIoE.

EUGENE E. MEAnon, or DANvILLn rrndmm ILLUMI'NATING APPARATUS.

Specification of Letters Patent.

Patented Nov. 2i, wie.

Application med May 3, 1915. Serial No. 25,563.

To all whom it ymay concern:

Be it known that I, EUGENE F. MEADOR, a citizen of the United States, residing at Danville, in the county of Pittsylvania and State of Virginia',have invented certain new in illuminating apparatus and more .particJ ularly to headlight such as automobiles, like. The primary object in view is the obtainl5 ing of maximum efficiency in the projection of light rays vwhile providing a relatively confined area for the projector.

A further object in view is the taking advantage of the reduced area required for such a projector for providinga supplementalprojector assembled in a single head# light casing.

With Ythese and further objects in view, the invention comprises substantially onehalf of a parabolic reflector and a concaved reflector disposed to' deflect light rays across the -line of 'the axis of the parabola, the reflectors being adapted to contain a light disposed ysubstantially coaxial with the parab'ola.

The invention further comprises substantially one-half of a parabolic reflector and a'substantially semi-globular concaved reflector disposed to reflect light into the rst mentioned reflector, and a supplemental reflector disposed adjacent the first mentioned reflector.

rlhe invention still further comprises a structures for vehicles, motor boats, and the headlight casing, a reflector arranged in the j t0 lower portion ofthe casing, a supplemental reflector. `of proportions reduced relative to the first mentioned reflector. and arranged between the first mentioned reflector and the upper portion of the casing, independt ent lights for the reflectors, the casing being formed at its rear portion with a li ht exit and the second mentioned reflector eing formed at its rear portion with a light exit. Y

The invention also comprises certain other novel constructions, combinations and arrangements of parts as will be hereinafter specified and claimed.

ln the accompanying drawings, Fi re ce' 1 isv ya vertical central section throug a light embodying the features of the present invention, parts being seen in elevation. Fig. 2 is a front elevation thereof. Referring to the drawing by numerals, 1 indicates a headlight casing' preferabl of the well known bullet shape, to the ront of which is detachably connected the door 2 carrying thelens or transparentA plate 3. The rear portion of the casing l is formed with a light opening 4 closed by a glass cover 5.

Arranged in the lower portionof the casing l is the reflector 6 which is formed in the shape of substantially the lower half of a parabolic reflector. The upper edges of the forward portion of the reflector G are connected by a flat reflector plate 7 `Plate 7 at its inner portion terminates in a substantially semi-globular concave reflector 8 disposed to direct light rays down against the parabolic reflector 6 across the axis of the parabola.

Within the area provided by the rear por-y tion of reflector 6 and by reflector 8 is arranged the incandescent electric light bulb 9 having the usual shank 10 detachably interlocked in a socket 11 sustained in the sleeve 12 fixed to the rear of the reflectors (Sand 8, the reflectors being apertured for the passage of the vsocket lllI Current is supplied to the light 9 through socket l1 by conductors 13 leading from any appropriate source not illustrated, through a sleeve 14 fixed in casing 1. The significance of the structural features of this reflector body whereby the efficient result is securedy will now be briefly noted.

` 's'hereinbefore premised, the supplemental reflector 8 is of relatively small area and its focal center is coincident with the focal center of the main reflector 6, at which focal center the source of light is also located. The axis of said reflector 8, as the device is illustrated in the official drawings. leans forwardly from the vertical so as to reflect the light rays strikingk its surface back through the focal center so as to concentrate these rays as much as possible in the small portion of the reflector (l onto which they are directed and from which they are reflected forwardly in horizontal planes. The exacty angularity of the axis of the supplemental reflector with relation to the axis of the main reflector may vary according to the variation in the height of lamps from the ground as applied to vehicles of different types or sizes. Advantage is taken of the inefficient point of the reflectorA device, defined by the juncture of the supplemental and main reflectors, in that at this location the light socket 12 is positioned, and furthermore it is to be observed that the concave reflector 8 is very closely arranged to the light so as to catch tion while saving a considerable amount of current which would be required for a high candle power light most usually employed.

The upper portion of the casing 1 is occupied by a reflector 15 of reduced size relative to reflector 6. The reflector 15 has its upper portion forming substantially one-half of a parabolic reflector, and the lower portion of the reflector, while curved rearwardly as clearly seen in Fig. l, is substantially straight transversely as clearly seerl in Fig. 2. A light 16 of similar structure and arrangement to light 9 but of smaller caliber is arranged in the apex ofreflector 15 and supplied with current through conductors 18 leading through sleeve 14 from any appropriate source of current. The lower portion of reflector 15 is apertured at 19, the aperture being closed by a transparent plate 20 preferably of glass. The aperture 19 is located relative to aperture 4 such that light rays passing through aperture 19 will be projected through aperture 41 and thus light the structure in`the rear, as Vfor example the side or running board of the car, or side of a boat.

, It ywill be noted that the reflector 15 is so arranged and constructed as to project therk light rays ordinarily above the plane of the roadway, while the light rays arek projected from reflector 6 substantially parallel to the roadway above the same, and light rays from reflector 7 are projected down` against the roadway, while those from reflector 8 are directed down against reector 6.

It is believed the operation will be obvious and -may be briefly stated as consistent of utilization of the lower light for suburban service, while the upper light is employed where detection quired.

Having thus described the invention, what l claim as new is:

1. A headlight structure comprising a reflector body consisting of a lowersemi-paraboloidal section, a supplemental concave reflector arranged over said section and having its focal center coincident with the focal center of the first mentioned lreflector whereby the light rays from thel concave reflector are reflected back through the focal center aforesaid, a source of light in said reflector, and means for deflecting upwardly directed rays downwardly across the aXis of the paraboloid.

2. A headlight structure comprising a reflector consisting o-f a main semi-paraboloidal reflector, a source of. light arranged at the focal center of said reflector, and a supplemental reflector of relatively small area cooperating with the main reflector and arranged in close proximity .to the source `of light and above the same, whereby to intercept the upwardly directed light rays close to the point of divergence of the same and reflect them back through the focal center of and onto the main reflector.

3. A headlight structure comprising a main semi-paraboloidal reflector, a source of light disposed substantially at the focal center Lof said reflector, a supplemental concave reflector of relatively small area extending forwardly of the apeX and over the main reflector and having its focal center coincident with the focal center of said main reflector, and a flat reflector above the "axis/of the paraboloid and joining the front edge of the supplemental reflector and extending to the base of the main reflector to intercept the upwardly directed rays emanating from the portion of the source of light not at the focal center aforesaid.A A

4. In a headlight structure, the combination, with a casing, of a reflector in the lower portion thereof comprising substantially the lower half of a paraboloidal reflector and a cover for said lower half having its forward portion flattened to provide a maximum space intermediate ther cover and the top portion of the casing, and an independent reflector in said casing disposed in the upper portion thereof and occupying the space unoccupied by the first mentioned reflector, 11,5 said. independent reflector having its upper portion conforming tothe casing and its lower portion conforming to the flattened portion of the cover aforesaid and seating thereon.

In testimony whereof l affix my signature.

EUGENE F. MEADUR.

of the roadway is not re-

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