US1571963A - Antiglare attachment - Google Patents

Description

Feb. 9 1926.

. A 1,571,963 P. w. PADDEN ANT .[GLARE ATTACHMENT Filed August 28 1925 I W .Padden attotmzq Patented Feb. 9, 1926.

UNITED STATES PATENT OFFICE.

PATRICK W. PADDEN, OF TOLEDO, OHIO.

ANTIGLARE ATTAGHMENT,

Application filed August 28, 1925. Serial No. 53,177.

T 0 all whom it may concern: p

Be it known that I, PATRICK W. PADDEN, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements. in Antiglare Attachments, of which the following is a specification.

This invention relates to an improved anti-glare attachment for motor vehicle head lamps and has for its primary object the provision of a simple, inexpensive and eflicient appliance adapted to be mounted upon the bulb portion of an incandescent lamp of the type used in connection with vehicle head lights, the appliance belng formed to include features 0 construction by which the source of light within the bulb is concealed from a front view and shadows produced upon the reflector of the lamp associated with the device so that the head lamps may be approached with safety and security, so far as oncoming observers are concerned but without materially diminishing a general illumination capable of being 7 produced by the lamps.

A further object rests in the provision of an attachment of the character indicated which is intended primarily to eliminate the necessity of dimming vehicle head lights upon the approach of oncoming vehicles 1n order to ehminate what is considered to be ative position upon the bulb of a vehicle head lamp,

Figure 2 1s a front elevation thereof, Figure 31s a vertical longitudinal sectional view, and

Figure t is a front elevation disclosing a variation in the relative positions of the shadow producing ribs from the positions bulb 3. The bulb 3 includes the usual filament or light source 4 which is adapted to be, positioned in approximately the focal center of the reflector.

Adapted to be mounted upon the bulb 3 is the anti-glare attachment 5 com rising In this instance the rivet 9 is of hollow form v to receive the tip 10 of the bulb 3, although it is obvious that in bulbs wherein the t1 is eliminated, the rivet 9 may be of solid form.

integrally formed with each of the body portions 8 of said shields is a pair of pliant, flexible fingers 11. These fingers are shaped approximatel to conform to the spherical form of the ulb 3 and extend to ositions adjacent to the base 12 of said bulb or, in other words, between 'said base and the plane of largest diameter of said bulb. Each of the fingers 11 terminates in a hook shaped extremlty 13 which is adapted to receive a transversely disposed returning spring 14. The spring 1 is preferably of coil form and serves to exercise a pressure u on the fingers 11 so as to frictionally hold t e latter in secured and adjusted positions of application upon the bulb. It is important in carrying out the invention that the fingers l1 retain definite predetermined operating positions in connection with the bulb, and for this reason the spring 14 is employed so that the fingers will exercise sufiicient pressure on the bulb to retain the attachment in its adjusted positions of application. This is preferable over a construction wherein the fingers themselves are utilized to clamp the attachment in place since it has been found in this latter form of construction that the attachment tends torotate on the bulb and cast shadows which do not materially alleviate lamp glare. In use, my improved attachment is applied and the ribs or fingers 11 are set in. relation to the source of light so that the light rays which produce the glare streaks observable on an ordinary reflector, are intercepted by the opaque fingers or ribs. It will be noted that by the employment of a plurality of shields, which are relatively adjustable, the fingers or ribs may, by relative adjustment, be set at positions securing the most effective elimination of the glare. By the employment of the spring 14 it is simply necessary to employ but four of the ribs 11, since the latter do not serve as holding members but merely as glare arresters.

The invention thus provides a simple and readily adaptable attachment by means of which lamp glare is greatly minimized and yet an ellective driving light produced. lt will be observed that the small number of ribs employed leaves wide spaces between said ribs by means of which the light from the bulb may pass through the reflector in an unobstructed fashion. My device has the advantage of being capable of instant application to an ordinary light bulb and enables the driver of a machine so equipped to operate the vehicle without dimming the head lights upon the approach of oncoming vehicles.

ll til l tltllil What is claimed is:

1. An anti-glare attachment for motor vehicle head lamps comprising a pair of shields, each of said shields being formed to include a body portion and a plurality of lamp bulb embracing ribs, and a pivotal connection be tween the body portions of said shields permitting of relative adjustment: of said ribs about the longitudinal axis of the lamp bulb upon which the shields are applied.

2. An anti-glare attachment for motor vohicle head lights, comprising a pair of opaque shields, said shields including aligned body portions positioned in front of said bulb, an axial pivot uniting said body portions for relative rotation, rearwardly extending' ribs formed with said body portions and engaging with the outer walls of the lamp bulb upon which the attachment is mounted, said ribs being relatively adjusta ble by said axial pivot, and a clamping springcoopcrative with the ends of said ribs to maintain the latter in fined positions of adjustment in connection with said bulb.

ln testimony whereof I aiiix my signature.

Pt'lltllllll W. PADDEN.

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