US87671A - Improvement in reflectors for head-lights - Google Patents

Description

. H. L. HERVEY.

I Reflector. 7 No. 87,671. 3 v Patented March 9, 1869.

W'itfiesses v i Inventr: v

N. PEI'ERS. PhatwLithognpher. Wnhingtomfl. C.

- part of my invention,

i -UNIT D STATES PATENT HORACE L. HERVEY,OEPHILADELPHIA, PENNSYLVANIA.

a IMPROVEMENT l N REFLECTORS FOR HEAD-LIGHTS.

Specification forming part of Letters Patent No. 87,67 1. dated March 9, 1869:

accompanying drawings, and to the letters marked thereon.

Likeletters refer to like parts in the different ti gures.

Figure 1 is a vertical sectional view of the headlight or lantern with its attachments. Fig. 2 is a front View of the door ofthe headlight or lantern, showing the bulls-eye'or lens Withits reflex reflector. Fig. 3 is a vertical sectional view of the head-light or lantern door, showing bulls-eye or lens and reflex reflector, also the manner of its attachment to said door.

To enable others skilled in the art to which this invention appertains to make and use my improvements, I will proceed to describe its construction and operation.

Fig. 1 is a vertical sectional view of aheadlight or lantern with my improvements attached thereto.

A is the body of the head-light or lantern, and is constructed in the form herein shown, or

can be made in any other known form where reflectors are used which may be found desirable, as I do not desire to'confine myself to any particular form for the body of a headlight or lantern, as my invention does not consist in-a head-light or Ian tern body, but in certain herein described attachments thereunto.

B represents the usual parabolic reflector usually found in head-lights of locomotive-engines.

0 represents the lamp, with its wick-tubes, D D. This-lamp can be made in any form desirable.

E E is what I call areflex reflector, and is a and can be made in any desirable form. This reflex reflector is placed in front of the light in such position as to gather the scattered rays of light and reflect them back upon the parabolic reflector B. From the'reflector B these rays are reflected forward andpass through the bullseye or lens F, which is placed in the center or near the center of the reflex reflector E. The reflex reflector E is provided at or near its center with what is usually called a bulls-eye or convex lens, for the purpose of concentrating the rays of light so as to cause them to penetrate for a longer distance forward than they would otherwise do by the usual methods now in use for head-lights or lanterns. The reflex reflector E is shown as beingprovided with pivots or centers marked G and 'J. 'These pivots are for the purpose of allowing the reflex reflector to be turned so as to change the line or direction of the rays of light pouring through the bulls-eye or lens F. The pivot G, which is attached to the bottom of the reflex reflector, rests in the bracket 'H. Said bracket is firmly attached or secured to the bottom of the frame of the door of the head-1i ght.. Said door-frame is marked K.

The pivot J is firmly fastened or attached to:

the upperside of the reflex reflector E, and passes through the bracket I, then bentin the form shown in the drawings, and passes through the slot between the frame of the door and the body of the head-light or' lantern, then passes upward to any desirable height, and at its top it is again bent, as is shown in Fig.'2. This is so done for the purpose of attaching a rod to reach to the cab or any other part of a locomotive-engine for the purpose of allowing the engineer the power to turn the reflex reflector so as to direct the rays of light to any desirable point in any desirable direction. The rod to connect the pivot J with any portion of the engine is not shown, as it will be easily understood without any explanation. Thus being able to turn the rays of the light to the right or left is a very important feature in the invention, as in passing'around acurve the rays of light can at all times be kept shining upon the track, while in ordinary head-lights the rays of light are thrown straight forward. Therefore in passing over curves on railroads the track is more or less in darkness, in accordance with the sharpness of the curve.

The bracket 1 is firmly fastened to the doorframe K, the same as bracket H. I would here state I do not confine myself to fastening the said brackets J and H, whichsupport the reflex reflector, to the door-frame, as re presenting the nature of my invention.

In the drawings I have shown the reflex reflector as being attached to the frame of the door of the head-light, for the purpose of the convenience of cleaning the insides of the reflectors.

I wish it understood that I do not confine myinvention to head-lights alone, as I can apply the bulls-eye or lens and reflex reflector to station and ear lights, or lights of that nature, without altering the principle or nature of it, when found desirable so to do..

The reflex reflector E does not fill up the Whole of the mouth or front of the parabolic reflector, but leaves a narrow margin around its circumference and the parabolic reflector, so that a portion of the rays of light will be able to pass between the two reflectors, so as to give light around the front of the engine or place where it is used. K K represents the door-frame to the head-light. L represents the glass plate usually found in such doors.

Fig. 2 shows a front view of the door of a head-light or lantern with the reflex reflector, bulls-eye lens, and other attachments. K is the door-frame for holding the ordinary glass .face.

E is the reflex reflector. F is the bullseye or lens. H and I are the brackets attached to the door-frame K for the purpose of supporting the reflex refleetorE and its bulls-eye or lens. J is the rod acting as the upper pivot for the reflex reflector E. It is also shown in this figure with its upper end bent at right angles for the purpose of acting as a lever for turning the reflex reflertor to any desirable angle.

Fig. 3 is a vertical sectional view of the headlight or lantern door with the reflex reflector and its appendages attached. K is the doorframe. E is the reflex reflector; J and G, pivots for the same; F, bulls-eye or lens. H and I are the brackets attached to the door-frame K for supporting the reflex reflector. The rod J also acts as a governor to the reflex reflector, so that said reflector can be turned when desirable so to do.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The bulls-eye or lens, in combination with the reflex reflector, when used for head-lights and other similar lights, substantially as described, and for the purposes set forth.

2. The reflex reflector E, pivoted or stationary, when used, in combination with reflector B in head-lights, in the manner herein described, and operating as and for the purposes set forth.

In testimony that Iclaim the above-described improvement in head-lights or lanterns I have hereunto signed my name this 2d day of February, 1869.

HORACE L. HERVEY.

Witnesses:

CHAS. MINK, ALEX. MCDONALD.

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