US1758825A - Headlight - Google Patents

Description

y 5 1930- J. B. DARi lNGTON 1,758,825

HEADLIGHT Filed May 9, 1929 2 Sheets-Sheet 1 gnucufoz JfiDa/Zm bn May 13, R930, J. B. DARLINGTON 197589325 HEADLIGHT Filed May 9, '1929 2 Sheets-Sheet 2 L Jnueufoz Patented May 13, 1930 PATENT OFFICE JOHN B. DABLINGTON, OF IBELLEFONTE, PENNSYLVANIA HEADLIGHT Application filed May 9, 1929. Serial No. 361,698.

This invention relates to headlights and has relation more particularly to a device of this kind especially designed and adapted for use in connection with motor driven vehicles,

and it is an object of the invention to provide a headlight which will throw out a flooded light whereby the roadway in advance of the vehicle and to one side thereof will be effectively illuminated and thereby materially increasing the safety of night driving.

It is also an object of the invention to provide a headlight of this kind which eliminates glare and which is constructed in a manner so that the light rays emitted therefrom are thrown in a direction whereby is eliminated the liability of such rays in any way interfering with the driver of an approaching car, or which will blind the pedestrian who may be within the path of travel of the vehicle at a point relatively close thereto.

The invention con ists in the details of construction and in the combination and arrangement of the several parts of my im-' proved headlight whereby certain important advantages are attained and the device renderedsimpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to described the-same with reference to the accompanying drawings, wherein --Figure 1 is a view'in front elevation of a headlight constructed in accordance with an embodiment of my invention;

Figure 2 is a sectional view taken substantially on the line 22 of Figure 1;

Figure 3is a sectional view taken substantially on line 3-3 of Figure 1;

Figure 4 is a sectional view taken substantially on the line 4-4 of Figure 1;

Figure 5 is a view in topplan and of a' diagrammatic character illustrating the relative arrangement of the reflectors vwithin a 50 pair of headlights constructed in accordance with my invention and carried by a single vehicle.

As disclosed in the accompanying drawings, C denotes a casing of requisite dimensions and configurations adapted to be supported as preferred by the forward portion of a motor driven vehicle and which is provided in its upper portion with an illuminating member 1 constituting an incandescent burner and wherein the bulb is preferably frosted. 4 This illuminating member 1 is positioned a material distance inwardly of the front glass 2 associated in a conventional manner with the casing C.

Disposed above the illuminating member 1 and extending transversely ofthe casing C is a top reflector 3.

This reflector 3, as herein disclosed, comprises a plate arcuate in a direction transversely thereof with its extremities terminating below the applied illuminating mem-' her 1 as clearly illustrated in'Figures 1 and 3 of the drawings. Thisplate 3 also projects a material distance in advance and to the rear of the member 1 as is particularly shown in Figure 3.

The inbow of the plate 3 is downwardly disposed and the inbowed face of said plate 3 constitutes a reflecting surface. The plate 3 is also directed forwardly and downwardly on a predetermined incline as shown in Figure 3.

The lowerportion of the casing C has disposed transversely thereacross a rod or bar 4, the same being directed horizontally on a B5 predetermined rearward incline as particularly indicated in Figures 2 and 5. This rod 4 is directed throu h a sleeve 5 of a length to substantially bri ge the space between the side walls of the casing C so that said sleeve 5 is substantially free of endwise movement to assure the reflector element R, to be hereinafter more particularly referred to, being maintained in desired position with respect to the illuminating member 1.

The central portion of the sleeve 5 has suitably secured thereto; as by welding or the like, a backing plate 6 for the reflecting medium R. This reflecting medium E comprises a plane main refleming body '2 disthe vertical center of, the member 1.

posed upwardly and rearwardly on a redetermined incline as the requirements 0 practice may prefer. The lower portion of the backing plate 6 hasextending therefrom a loop member 8 with which is freely engaged a loop member 9 In swiveled connection, as at 10, with this loop member 9 is an inserted end portion of an operating rod 11. The opposite end portion of this rod. 11 is threaded through, as at 12, the rear wall of the casing C. By rotating the rod 11 the angle of the reflecting body 7 may be varied as desired and effectively maintained in its selected adjustment. The body '7 in a Vertical direction is of a length to extend at its top rearwardly of the member land at its bottom to extend in advance thereof and said reflecting body 7 is also of a width to be disposed a material distance to each side of the vertical center of the member 1 The sides of the reflecting body 7 are continued by the forwardly directed and outwardly inclined side reflecting bodies 14, While the central portion of the top edge of the body 7 is continued by an upwardly disposed top reflecting body 15. This body 15 has its forward or reflecting surface arranged on an angle of substantially one hundred and thirty-five degrees with respect to the forward'reflecting surface of the reflecting body 7. The top reflecting body 15 has its ends terminating a desired distance inwardly of the sides of the reflecting body 7 but at points materially beyp1d e ends of the top reflecting body 15 are con tinued by the forwardly and outwardly inclined side wing reflecting bodies 16.

The assembly and relative arrangement of the various reflecting bodies as her'ein'comprised assure the projection through the glass 2 of a flooded light which will effectively illuminate the roadway in advance of the vehicle, and the mounting of the rod 4 upon which the reflecting body 7 is mounted will maintain such body 7 and the reflecting bodies associated therewith at such angle in a direction transverse to the line of travel of the vehicle to assure illumination to the side of the vehicleremote from such headlight. As is particularly illustrated in Figure 5, the mountings of the'reflecting body 7 as pertains to such horizontal angle are in reverse direction thereby assuring eflective illumination to both sides of the vehicle.

It will also be understood that the mounting of the various reflecting" bodies with respect to the illuminating'member 1 is such that the spot produced upon the body 7 from the member 1 will prevent any liability of glare. It is also to be understood that the relative arrangement of the various reflectingbodies is such as to eliminate concentration of the light rays emitted from the illuminating unit and to eflectlvely spread the same and Wherein the light as reflected will occur as a glow and not as a glare. This relative arrangement of the reflecting bodies is also such as to result in effective spreading or flooding of the light including the mean rays.

The reflecting bodies as herein embodied are also in such relative assembly as to prevent the light rays from being projected above the horizontal and at a point relatively close to the road surface.

As is particularly illustrated in Figure 5, it is to be noted that the reflecting bodies 14 comprised in each of the headlights are so related that they direct their rays to the right and left of the headlight and in crossed relation whereby eflective illumination is provided in advance of a traveling vehicle and especially when rounding a curve. In the present embodiment of my invention the bodies 14 are each arranged at an angle of approximately forty-five degrees with respect to the reflecting body 7 From the foregoing description it is thought to be obvious that a headlight constructed in accordance with my'invention is particularly well adapted for use by reason of the convenience and facility with which it may be'assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as here-- inafter claimed.

I' claim A lamp comprising, in combination, a casing having an illuminating member positioned within the upper portion of the casing, a transversely disposed downwardly inclined reflector within the casing positioned above the illuminating member and extending in advance thereof, a reflector body positioned within the casing below the llluminating member and disposed on an upward and rearward incline, means for supporting said reflector body for independent swinging adjustment in a vertical direction, side reflector bodies carried by the ends of the reflector body and disposed -on a forward and outward incline with respect thereto, and an-upwardly directed top reflector body carried by the upper end of the first reflector body, the top reflector body terminating inwardly of the ends of the first reflector body, theends of thetop reflector body being continued outwardly and forwardlyinclined reflectorwings. i

In testimony whereof I hereunto afiix my signature.

JOHN B. DARLINGTON.

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