US1548252A - Headlight lens - Google Patents

Description

Aug; 4, .1925.

' P. H. BREUSS HEADLIGHT LENS Filed Aug. 22. 1924 KINVENTO-R Peter H-BI'ELLS s ATTORNEY Patented Aug. 4, 1925.

UNITED STATS PETER H. BREUSS, OF BEDDING, CALIFORNIA.

HEADLIGHT LENS.

Application filed. August 22, 1924. Serial No. 733,616.

To aZZ whom it may concern:

Be it known that I, PETER I-I. Bnnuss, a citizen of the United States, residing at Bedding county of Shasta, State of California, have invented certain new and useful Improvements in Headlight Lenses; and I do declare the following to be a full, clear, and exact description of the same, refer ence being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in headlights, particularly of that type used onmotor vehicles. The object of the invention is to produce a lens for covering the re flector of the standard headlight whereby there will be no blinding glare thrown out, irrespective of what angle an approach is made toward the headlight.

A further object of the invention is to accomplish the first named object and still have a full and eflective flood of driving light diffused in front and well to each side of the vehicle.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Fig. 1 is a cross sectional view through a standard type of headlight showing my improved lens mounted therein.

Fig. 2 is a side elevation of the center portion of the lens with the outer portion broken off.

Fig. 3 is a sectional view taken on a line 83 of Fig. 2.

Referring now more particularly to the characters of reference on the drawings the numeral 1 designates the main metal frame or shell of the headlight which is of standard design and fitted in the same is the usual polished reflector 2 and the lamp or globe 3,

and front clear glass cover 4: held in place by the usual clamping rings or collars 5.

My improved lens comprises a concave outer part 6 and a convex center part 7, both parts moulded in one piece in glass of special design as will be described.

The part 6 is shaped to fit the contour of the reflector 2 and has a plurality of lugs 8 spaced on its inner surface to receive rubber caps 9 to act as bufl'ers between the lens and reflector.

The part6 terminates short of the globe 3 and merges into the convex part 7 which extends over such globe as shown clearly in Fig. 1.

The outer surface of the part 6 is smooth while its inner surface is formed with a succession of longitudinal and transverse undulations 10 giving the effect of an alligator surface.

The part 7 is formed with a plurality of spirally arranged inverted V-shape ribs 11, commencing in equally spaced relation at the juncture of the part 7 with the part 6 and terminating in one point at the apex of the part 7. Commencing at the juncture with the part 6 and for approximately one half their length the ribs 11 are concave on their inner sides as at 12 so that the glass at those points will be the same approximate thickness throughout the cross sectional area of the part 7. For the other half or the apex of the part 7 the ribs are solid throughout so they are of a greater thickness than the spaces between them all for a purpose as will appear.

The lens when positioned in the headlight is held in place by the pressure of the front glass 4 with a resilient gasket 13 between its front edge and such glass.

I have found by actual experiment that when the lens is fitted into a standard headlight it renders the same perfectly anti-glaring irrespective of the candle power of the globe used or the angle of approach.

The spiral twist of the ribs on the convex member 7 breaks up the usual direct bulls eye glare effect while the undulated surface 10 prevents the issuance of reflected rays of light from the reflector 2 without first being diffused. At the same time the headlight throws off a full flood of highly satisfactory driving light.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims. I j 7 Having thus described my invention What I claim as new and useful and desire to se cure by Letters Patent is:

1. A headlight lens including a concave element to lie adjacent the reflector surface of the headlight, and a convex element to surround the light globe, each element having an irregular surface to break up the direct light rays from the globe and reflector.

2. A headlight lens including a concave element to lie adjacent the reflector surface of the headlight, a convex element to surround the light globe, the concave element having transverse and longitudinal undulations formed on its surface, and the convex element having spirally disposed ribs along its surface.

" S. A. headlight lens including a concave element to lie adjacent the reflector surface of the headlight, a convex element to surround the light globe, the concave element having transverse and longitudinal undulations formed on its surface, and the convex element having spirally disposed ribs along its surface, such ribs commencing at the juncture of the two elements in equally spaced relation and terminating in a common point at the apex of the convex element.

4. A headlight lens including a concave element to lie adjacent the reflector surface of the headlight, a convex element to surround the light globe, the concave element having transverse and longitudinal undulations formed on its surface, and the convex element having spirally disposed ribs along its surface, such ribs commencing at the juncture of the two elements in equally spaced relation and terminating in a com mon point at the apex of the convex element, the ribs for one half their length be ing concave on their under sides and solid for the other one half. i j

In testimony whereof I aflix my si nature.

' PETER H. BRILUSS.

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