Three and one-third one-httndredths to jeremiah wilfred heffernan
US 1304505 A
Description (OCR text may contain errors)
1. omvusmw. HEAD LAMP ADJUSTER.
AFPLICATEON FILED MAR. 5- 198 Patented May 20, 191 9.-
t O w a u n 3 witnesses UNITED sTA'rEs PATENT OFFICE.
I JOHN ANDREW ORMISTON, OF CALGARY, ALBERTA, CANADA, ASSIGNOB F THIRTY- THREE AND ONE-THIRD ONE-HUNDREDTHS OI EDMONTON, ALBERTA, CANADA.
Specification of Letters Patent.
Application filed March 5, 1918. Serial 1%. 220,535.
. in is a specification.
his invention relates to head lamp adjusters, the object in view being to produce a simple device which may be applied to any ordinary head lamp for use on an auto-- mobile, motor truck,-locomotive, street car,
'or other vehicle, the mam object being to prevent blinding rays of light from being thrown from a head lamp in such manner as to interfere "with the drivers of other machines or pedestrians, and traflic in general, the device being designed to comply with the trafiic regulations which, in some localities, require that the rays of light from 'a head lamp must not be elevated more than twenty-four inches above the ground at a distance of seventy or eighty feet in front of the vehicle carrying the lamp.
' A further object of the invention is to increase the efficiency of the lamps and the illuminating properties thereof by concentrating the rays of light upon the road for a considerable distance in front of the vehicle.
A further object of the invention is to so construct and arrange the elements of the invention as to not interfere with the vision of the driver and occupants of the vehicle u on which the lamp is carried.
With the above and other objects in view, the invention consists in the novel construction, combination, and arrangement of parts, as herein described, illustrated and claimed.
In the accompanying drawing,
Figure 1 is a front elevation of a head lamp equipped with this invention.
Fig. 2 is a vertical diametrical section through the same.
Theimproved device comprises a screen A of opaque material, preferably metal, the said shade slightly exceeding one-half of a disk and havlng a slightly arched bottom edge, as shown, the highest point of the arch being below the center of the bulb L of the lamp, as shown in the drawing. In addition to the screen A, the device comprises 'spondjng an inclined reflector C which is of inverted dish shape, the front edge thereof being arched as indicated by dotted lines 1n Fig. 1, and the rear edge thereof being arched to a greater degree and lying in contact with the forward face of the reflector H of the lamp as shown in Fig. 2. The forward edge of the reflector C lies in contact with or 1n close proximity. to the screen A ing a fixed partof the attachment. Pins G extending backwardly from the screen A serve to hold the whole device in place in the lamp. and preventv the turning of said screen and the reflector C carried thereby, the main reflector H of the lamp being formed with holes in which said pins G are inserted.
Secured to the rear face of the screen A is a license number holdingframe B comprising the flanges or lips D which are disposed radially with respect to the center of the lamp'as indicated in Fig. 1. An arcuate license number plate E is inserted in the PatentedMay 20, 1919.,
T0 JEREMIAH WILFRED HEFFEBNAN,
and is fixedly secured to said screen, formplate holder and is formed of translucent material, such as opaque, or frosted or ground glass, the numbers on the plate E being visible through an opening E of correshape formed in the screen A. The reflector C has its lower face nickel plated or otherwisehighly polished, so as to deflect the rays of light from the bulb L downwardly, thuspreventing the elevation of the rays of light from the lamp. Said reflector C is formed with perforations or openings F, so as to provide for the necessary illumination of the interior of the body of the lamp above said reflector Gin order to correspondingly illuminate the number plate E. The body of the lamp is represented at I and the front thereof is covered with the usual glass or lens K.
\From the foregoing description, taken in At the same aoaeoe have perfect visionas to the general traiflc. Furthermore, the license nunr er of the vehicle will be clearly displayed by night, as
Well as by day.
I claim 1. The combination with a head lamp, of an opaque screen substantially in the form of one-half of a disk arranged directly behind the front glass or lens of the lamp and extending below the center of the light bulb, an inverted dish shaped reflector carried by and extending rearwardly from said screen over the light bulb and having its rear edge in contact with the main reflector of the lamp, said screen being formed with a display opening above the main opening, said dished reflector being formed with light transmission openings to provide for the illumination of that portion of thescreen having the display opening.
2. The combination with a head lamp, of an opaque screen substantially in the form of one-half of a disk arranged directly behlnd the front glass or lens of the lamp and extending below the center of the light bulb,
an. inverted dish shaped reflector carried by and extending rearwardly from said screen, said reflector extending from the screen rear- Wardly over the light bulb and having its rear edge in contact with the main reflector of the lamp, said screen being formed with an arcuate display opening, a translucent number bearing p ate arranged behind said opening, and plate holding means on the back of said screen, said dished reflector being formed with openings to provide for the illumination of said number plate.
In testimony whereof I affix my signature.
JOHN ANDREW ORMISTON.