US1279203A - Headlight. - Google Patents

Description

0. WINSTON.

HEADLIGHT.

' APPLICATION FILED APR. 29. WIS-RENEWED FEB. 15.1913.

LQWQB l I PatentedSept- 17,1918.

t as

. in automobiles, and' the numerals 2 and 3,. respectively, the reflector and glass plate or Leaaeos.

,OVERTON WINSTON, or MINNEAPOLIS, MINNESOTA.

HEADLIGHT;

Application filed April 29, 1916, Serial No. 94,297.

To all whom it may concern;

Be it known that I;- Ovnuron WINSTON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and skilled. in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved headlight especially adaptedfor use in automobiles, but adapted for more general use, and the invention is directedto improved electro-magnetic means forcontrolling movements of the. lamp socket, whereby the light/bulb may be moved toward and from the axis of-the reflector.

In the accompanying drawings Which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Figure l is a view partly in side elevation and partly in vertical section illustrating the invention and showing the electric connectionsin diagram; and I Fig. 2 is a view corresponding to Fig. 1, but illustrating a somewhat modified. arrangement of the electric connections.

Except for the electrical connectionsflzhe construction illustrated in Figs. 1 and 2 are v identical. and brieflydescribed, are as follows:

p The numeral 1. indicates the casing of an ordinary headlight, such as generally used lens thereof. The electric lightbulb 4 is detachably mounted in a lamp supporting socket 5, which, so far as the present inventiofi'is concerned, may take difierent'forms, but maybe assumed to be of the type dis: closed and claimed in my pending application 86,851, filed of date, March 27, 1916, and entitled Headlights The lamp socket '5 is connected by pivots 6- to a hollow sup-Q porting head 7 that has a threaded shank Y screwed into the hub of'an-annularanchoringplate 8 rigidly secured on the back of the reflector-2 and surrounding an axial passage 2 thereof, For oscillating the lamp socket, I I provide upper and lower electro-magnets 9, both of which are rigidly secured to and carried bv horizontally p'rojecting .upper.

and. lower plates 10 of the'hollow bearing side of the battery 14 and is,

in the lead 15. The switch 18 the switch 19 Specification of Letters Patent. P te t d Sept. 1?, 1918.

Renewed February 15, 1918. Serial 1\|'o. 217,461.

head At their inner extremities, the elec-- tro-magnets are provided with pole pieces with pole l1, and at their outer extremities, pieces 12. v The pole pieces 11 act upon and limit theoscillatorymovements of the rear end of the lamp socket 5, which latter. is of iron or steel and ser'vesas an armature.

Small upper and lower lock levers 13 are intermediately pivoted to the upper and lower ends with heads that are engageable between the pole pieces 11 and rear end of the armature and are operative to alternately lock the said socket in raised and lowered posiplates 10. and are provided 'at their inner tions. The extended ends of the lock levers are spring-pressed outward ,andare of ironarmatures that pieces12of the i 75,

orsteel so that they serve as are-subject to the outer pole cooperating electro-magnets.

Referr ng now,.to the electricalbonnections disclosed in Fig. .1,the numerall i in I dicates a battery, or source of electrical energy. One of the lamp contacts, by a well known means, is grounded through the lamp socket, and the other is connected to a wire or battery lead 15 that extends from one sulated from the lamp socket. socket is, as shown, electrically connected to in an open or in a closed position.

Fronrthe foregoing, it will be noted that inthe arrangement illustrated in Fig. 1, the lamp arranged to be connected, in series, with'one or the other of the clectro-magnets and that whenever current. is sent through the lamp the current must also be sent through one or the other of the -electro-mag-' nets. With this arrangement, it is the inof'course, in-' r The lamp the inner end terminal of coils of the two,

f electro-magnets 9-and the outer terminals of the coils of the said magnets have independ too tention that one Or'the other of the electromagnets always be kept energized when the circuit is sent through the lamp, so that it will assist in holding the lamp socketin the adjustment desired.

'lWhen the switch 18 is in the position shown in Fig. 1, the lower magnet will be energized and will exert a force on the rear end of the lamp socket, holding the same downward, and at the same time, the upper lock lever 13 will cooperate with the lower magnet and lock the said socket in said position. With this arrangement, however, wherein the electro-magnct remains energized'to hold the lamp socket in one or the v other position, it is practicable to use very lightly spring-pressed lock levers which may be very" easily moved into inoperative posi- 'tions by the magnetic action of the cooperating outer pole pieces. 1

Obviously, when the switch 18' is moved -upward, so as to connect the upper lead '16 to a common lead 17, the upper electro-magof the lower lock lever automatically engages battery or source of electrical .ener

net will be energized, and the upper lock lever 13 will be first released, and then the said energized electro-magnet will move the rear end of the socket upward and carry the light bulb to a point where its filament will be: approximately at the axis of the reflector. When the socket is moved upward, the head under the same and, conversely, when the socket is moved downward, the head of the upper-Flock lever automatically engages over the socket.

Inthe arrangement shown in Fig. 2, the ey 14a is connected to one of the lamp contacts by 'alead 15, and the otherlamp contact is grounded through the lamp socket and connected back to the other side of the battery, through a lead 19. The upper and lower electro-magnets, in this arrangement, are "connected in multlple w1th the lamp, or

otherwise stated, are connected across the loads 15 and 19 by shunt circuits 20 having independently operative switches 21 adapted to be set, either in open or closed positions.

The lead 15 is also preferably provided with a suitable switch 22 which-must always p be set in, a closed position when either the lamp {or one or the other of the electromagnets is connected to the battery circuit, but when the upper switch 21 is closed, the upper"electrosmagnet will be energized, and when he lower switch 21 is closed, the lower electro-magnet will be energized. With this arrangement, it is. of course, possible to cut out ither one or both of the electro magnets while the current is being supplied to the lamp but also possible to shunt part of the current through one or the other of the elcctro-magnel's all of the time that current is being supplied to the lamp. Both of the arrangements described make it possible to ,keep one or the otherof the electro-magnets energized and operative on the lamp socket all of the time that the current being supplied to the lamp, and this," as already stated, causes the electro-magnets and lock levers to cooperate in holding the lamp socket in either set position and against rattling, thereby making possible the use of light and easily actuated lock levers and like device that do not require large electromagnets for their operation. Furthermore, the lamp socket is nearly .balanced on its pivot and, it normally has contact With one or the other of the pole-pieces 11, very slight magnetic action is required to maintain such contact. The lock levers, however, i

provide further and more positive means for preventing rattling and for positively locking the socket in the one position or the other. Especially, the said locks are important because they serve to hold the socket locked in the one position or the other and against rattling when the current is out OK i from the lamp, and, of course, also from the magnets,

While the switches 21 may be of any suitable character, nevertheless, they would preferably be of a type wherein the one will be opened when the other is closed, so that only one can be closed at a time.

That I claim'is: I 1. In a headlight, the combination with a reflector, of a lamp socket movablegin re spect to the axis thereof, opposing electromagnets for moving said socket fromfone' position to another, a source of electrical energy, circuit connections between said lamp and source of electrical energy, leads for said electro-magnets, and sw'tch mechanism, by which latter, either lof said eleotro-magnets may be continuou lv energized while current is being deliver magnets, a switch mechanism whereby either V of said electro-magnets may, at will, be connected in circuit with said lamp, and upper and lower lock levers subject, to said upper and lower electro-magnets, respectively, and cooperating with said lower and upper electroinagnets, respectively, to hold said lamp socket in one or the other of its adjustmen'ts.

3. In a headlight, the combination with a reflector, of a lampsocket movable toward and from the axis of said reflector,

upper and lower electrormagnets for moving said socket into difierent' adjustments,

a source of electrical energy; certai'n{ conaid electro-m'agnets, switch mechanism,

whereby either of said electror-ma'gnets may; at will, be connected in circuit with said lamp, and magnet released socket-locks 00- U operating with said electro-magnets to hold said socket-in the one position or the other '-In testimoriy whereofiI aiiixmy sigriature the lanip circuit is open, and s H of themselves to: hold said socket in '1 Bone position-or the other when the lamp circuit is' closed.

in presenc'ebf two Witnesses.

OVER-TON WINSTON.

Witnesses: 1 v

BERNJICE G. WH. R, HARRY D. KILGORE.

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