US1311570A - Hotjse - Google Patents

Description

W. H. M OREHOUSE.

HEADLIGHT LENS.

APPLICATION FILED FEB. 8. 1919.

Patented July 29, 1919.

satires earner entree.

WILLIAM H. MOREHOUSE, OF PASADENA, CALIFORNIA, ASSIG-NOR TO SAMMUEL SLADE AND MARSHALL STUART MARSH, BOTH OE CHICAGO, ILLINOIS.

HEADLIGHT-LENS.

To all whom it may concern:

Be it known that 1, WILLIAM H. Mona- HOUSE, a citizen of the United States, residin at Pasadena, in the county of Los Ange es and State of California, have invented new and useful Improvements in Headli lit-Lenses, of which t e following is a speci cation.

My object is to make a headlight lens, and my invention consists of the novel features herein shown, described and claimed.

Figure 1 is a front elevation of a headlight having a lens embodying the principles of my invention.

Fig. 2 is a vertical central section on the line 2 2 of Fig. 1.

Fig. 3 is a fragmentary perspective of the uppermounting and the upper end of the plate held by the mounting.

The body or frame 1 of the headlight may be any of the usual constructions having an electric lamp 2. The headlight lens 3 is adapted to be mounted in the front end of the body 1 and the lens is circular in plan and substantially fiat, and the lens is transparent with a light absorbing strip 4: extending diametrically across the lens, thereby leaving transparent portions 5 and 6 at the sides of the strip 4:. The light absorbing strip 4: may be produced in several ways. As shown, the light absorbing strip 4: is produced by mounting a plate 7 behind the lens 3. The plate 7 is formed of glass cut to the desired width and length and rendered semitransparent by grinding, frosting, corrugating, roughenlng, painting or the like. A mounting 8 is provided for the upper end of the plate 7 and a similar mounting 9 is provided for the lower end of the plate 7. The mountings 8 and 9 are substantially alike and are formed of thin sheet metal. The mounting 8 consists of a fiat metal plate 10 having a straight lower edge 11 and a curved upper edge 12 and Z shaped pieces 13, 14: and 15, having their outer ends rigidly attached. to the rear face of the plate 10 and their inner ends engaging the rear face of the plate 7 In a like manner the mounting 9 consists of a plate 16 having a straight upper edge 17 and a curved lower edge 18 andpieces 19, 20 and 21 bent Z-shaped and having their outer ends rigidly secured to the plate 16 and their inner ends engaging the rear face of the plate 7 I Specification of Letters Eatent. Application filed February 8, 1919. Serial No. 275,891.

Patented July 29, 1919.

The mountings 8 and 9 carrying the plate 7 are placed against the rear face of the lens 3. The lens 3 is placed in a cap 22 and the cap placed upon the frame 1 in the usual way.

It is obvious that the light absorbing strip 4 may be formed directly upon the lens 3 by grinding, frosting, corrugating, roughening, painting or the like.

I prefer to make the light absorbing strip 4 independent of the lens as shown, in order that it may be manufactured and sold as an accessory to be applied to lenses already in use, an in order that when the lens is broken the lens may be removed and renewed by buying or making an ordinary circular piece of glass, but where my invention is to be applied to the lamp in the manufacture of the lamp it will doubtless be preferable to make the light absorbing strip 4 directly upon the lens.

The object of the light absorbing strip 4 extending from top to bottom across the lens is to "prevent a strong light from glaring straight ahead. It is to be understood that the light absorbing strip a is not black, but that it is translucent or semi-transparent and only absorbs a small part of the light.

Preferably the light absorbing strip 4 occupies about one-third of the width of the lens, so that the transparent portions 5 and 6 are each equal in Width to the width of the light absorbing strip.

It should be noted that in my improved headlight lens the rays of light issuing on either side of the dimmer strip are unob-.

width substantially less than the diameter of the lens, mounting plates. of thin sheet metal having substantially straight inner margins and means for securing the plates to said strip, one to each end, the outer margins of said plates being adapted for removable attachment to a eadlight lens mountin a 2. A immer attachment for headlights comprisin a thin, flat, relatively narrow strip of Ight absorbing material with a mounting plate at each end, means for securing t estrip ends to said plates, said plates being. of thin sheet metal and projectmg beyond the side margins of said strip, the outer margins of said plates being adapted for engagement with a 3. The combinationwith a circular transparent headlight lens, of a straight light absorbing strip extending vertically and diametrically across the lens thereby leaving headlight frame;

transparent portions at the sides of the stri said light absorbing strip comprising being formed of thin sheet metal plates having straight inner edges and curved outer edges and having Z-shaped pieces secured at their outer ends to the back sides of the plates and engaging the ends of the glass, said mountings being placed against the rear face of the transparent lens and mounted in the frame along with the transparent ens.

In testimony whereof I have signed my name to this specification.

WILLIAM H. MOREHOUSE.

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