US2020944A - Antiglare device - Google Patents

Description

Nov. 12, 1935.

INVENTOR 6401 M. HAMMAL/A/V ATTORNEY Patented Nov. 12, 1935 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to antiglare devices for headlights and is especially adapted for use in the automotive field.

The glare of headlights on the road, caused by the direct rays of the lamp filament, is discomfitting to drivers of approaching vehicles and is often the direct cause of accidents and the attending injury and death of many persons.

Despite legislation tending to regulate the headlight beam and making illegal incorrectly positioned headlights, the direct filament rays still remain the bane of the motorist.

It is therefore a major object of this invention to provide a device readily attachable to the headlight lamp which will intercept and temper the glaring rays of the lamp filament.

Another object is in the provision of a translucent shield, carried by the lamp and positioned so the glaring rays are softened and partially absorbed as they seek to pass through it.

A further object is in the provision of a shield, having a larger light colored translucent disc for the greater angled direct rays and a smaller superposed darker colored translucent disc for the more direct filament rays.

A still further object is in the provision of a holder for such discs in the form of a spider having portions engageable over the bulb of the lamp.

These advantageous features are accomplished by the novel and practical construction, combination and arrangement of parts hereinafter disclosed and illustrated in the accompanying drawing, constituting an essential part of the disclosure, and in which:

Fig. 1 is an elevational view, partly in section,

of a headlight showing a preferred embodiment of the invention.

Fig. 2 is a front view of the shield and supporting spider, a portion of the shield being broken away for clarity of illustration.

Fig. 3 is a sectional view of a modified form of shield.

Fig. 4 is an elevational View of a lamp provided with an alternate form of supporting spider.

Fig. 5 is a front view thereof, a portion of the shield being broken away.

Fig. 6 shows another form of spider integrally provided with a direct ray intercepting shield.

In the drawing, the numeral l indicates in a general way, a headlight having a transparent lens II and a usual type of parabolic reflector l2.

The headlight is arranged to centrally support a lamp having a base portion l3, a glass bulb l4 and one or more filaments l5.

As is usual, the filament of the lamp is positioned at or near the focal point of the parabolic curve to provide the reflected rays l 6.

These are the desired rays, and when the headlights are The discs' may be secured to each other in a usual manner, such as by cementing as shown in Fig. 3 or by means of acentral rivet 2|, (Figs. 1 and 2).

The shield is preferably supported in spaced relation to the lamp by means of a spider 22. The spider comprises essentially a ring 23 fitting the spherical portion of the ,bulb I4, and spring arms 24 having inturned hooked ends 25, are provided to encompass the outer periphery of the shield l8.

To maintain the position of the spider on the lamp, a spring clip 26 adapted to encircle the lamp base I3 is provided and attached to the ring 23 by means of a connecting member 21.

While it is preferred that the spider be integrally made, it of course, may be fabricated from suitable materials.

D'u e to the flexibility of its structure the spider is easily placeable on and removable from the lamp and the shield.

In the above, the shield is separable from the spider, and though this feature is desirable, it is also practicable to permanently secure the shield to the spider. This alternate form is illustrated in Figs. 4 and 5 in which the spider 22 is formed with bulb-engaging arms 28 and with a shield carrying portion 29 and in this instance the rivet 30 will serve to connect together the discs I 9 and 20 and the portion 29.

0 The modified form shown in Fig. 6, comprises 5 shield l8.

Having thus described my invention, what I claim as'new and desire to secure by Letters Pat- 7 5 ent, is:

A direct ray tempering shield supporting means for headlights comprising a ring adapted to fit the front spherical portion of the headlight lamp bulb, diverging arms secured to the ring, hooked ends on the arms adapted to yieldingly encompass the periphery of the shield and a spring clip secured to the ring to encircle the base portion of r 5 the lamp, 7 7

PAUL M. HAMMALIAN.

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