US814030A - Locomotive-headlight casing. - Google Patents

Description

No. 814,080. PATENTED MAR. 6, 190a.

. E. A. EDWARDS.

LOOOMOTIVB HEADLIGHT CASING. APPLICATION FILED JAN. 7, 1902.

2 SHEBTS -SHBET l.

No. 814,030. PATENTED MAR. 6, 1906. E. A. EDWARDS. LOCOMOTIVE HEADLIGHT CASING.

APPLIGATION FILED JAN; 7- 1902.

2 SHEETS-SHEET-2.

* Rye.

UNITED STATES OF CINCINNATI, OHIO. ASSIGNOR, BY MESNE TO METROPOLITAN TRUST & SAVINGS BANK,

EDGAR A. EDWARDS, ASSIGNMENTS,

PATENT OFFICE.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed January .7, 1902. Serial No, 88,760.

To all whom it may concern:

Be it known that I, EDGAR A. EDWARDs, a

citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful improvements in Locomotive-Headlight Casings, of which the following is a specificain Fig. 1.

rest and are secured an whi( h must lam tion.

My invention relates to locomotive-headlights, and more especially to the construction and support of the casing thereof, whereby to secure a rigid support of the parts without excessive weight of metal and to reduce the glare of the light under certain circumstances, as fully set forth hereinafter and as illustrated in the accompanying drawings, in which v Figure 1 is a perspective view of a locomotive-headlight embodying my invention. Fig. 2 is a side elevation ing a different arrangement from that shown Fig. 3 is a perspective view of the base for supporting the other parts of the headlight, and Fig. 4 is a detached perspective view of the screen-roller and casing.

The headlight-casing consists of a body portion A, a base B, supporting the same, and

-a ring C, which is hinged by suitable hinges at the open front end of the casing and supports the goggle-glass D.

The base B is formed into a bed-plate 1, which has bearing-faces 2 2 2, upon which and a motor F therefor, and a projecting portion 4 of the base has a curved upper face 5, upon which is seated the curved body A of the casing, secured thereto by suitable bolts or rivets, and upon the projecting portion 4 are bearing-faces 6, upon which rests and is secfired the base of an electric-arc 'lamp G.

By means of the base constructed as above described I am enabled to obtain a secure and rigid support for the assembly of parts be kept in positive relations to -eachother:that.is, the motor, generator,

and easing. In order to obtain access tothe lamp, there inust be an opening 10 at one or both sides of the'casing, and the cutting of such openings greatly reduces the strength of the casing. This might I' therefore take n'ieans to strengthen the inpart section, show single piece of meta electric generator E p be increasedby the use of much heavier metal, which is very und esirable, and Y same, which means consist in bending up the metal to form a flange 12 at each edge of the opening, said flange extending radially outward, and the cap or cover H, which is bent to conform to the contour of the casing and is hinged at one end thereto, is provided with inwardly-projecting flanges 14, which overlap the flanges 12. This not only secures greater rigidlty, as desired, but, further, the flanges 12 the casing, while the overlap ing flanges 14 form such close joints therewith that neither rain nor snow can find its way inside the easing. The casing is further strengthened by an outwardly-extending peripheral flange 15 at. the front open end thereof, and. in order to prevent the access of snow and rain the ring O is provided with an inner projecting flange 16, which extends across the edge of the flange 15 and forms a substantially tight joint. I

It has been found forrn goggleerings b as in sue case the 6611-. ter must be cut away, resulting ina large amount of waste. To avoid this result and at the same time avoid the necessity of using cast metal for the rings, I formeach .of the latter of a plurailty'of sections 17, each of which is hammered or otherwise brought to a curve corresponding to that required for a ring of proper diameter and is bent in crosssection to form the terminal flange 1,6. These sections are riveted together at I; end to end,

thus forming an annular ribbed and flanged prevent water from flowing intoextremely expensive to l stampin themfrom a ring at a fraction of the cost which 'woiild oth- I erwise be required.

It has been found very desirable, especially when arc-lamps are employed for locomotiveheadlights, to reduce the intensity of the light when one engine ap roaches another, as the glare in the faces 0 the engineers prevents the proper observation of-the adjacent surroundings; In order to secure this result, I provide the headlight with a translucent screen or shade I and this screen may be carried momentarily or or any desired length of time across the outer face of the goggle glass, the said screen, however, being adjusted by the engineer or his assistant and preferably by means within reach from the cab. This screen may be made and adjusted-in various ways. Preferably it is of translucent waterproof material and also with means whereby I preferably it is flexible, so that it may be placed upon. a roller 30 within a roller-cas ng J, arranged suitably at the front of the head'- light-casing; but, as shown, it is carried by the ring C and below the supplemental reflector K, which is used for reflecting upward a portion of the light. The arrangement of the casing J, however, may be varied, as'desired. mounted upon the roller is provided with the usual stiffening-rod 18 at the bottom, and in order to guide the shade guide-rods 19 are arranged at the opposite sides, passing through eyes upon the stiffening-rod 18. In order to permit the shade to be adjusted by the engineer, a cordv or wire 20 extends to the cab.

' As shown, this cord or wire is connected to the lower edge of the shade and passes around a guide-roll 21; but any other means of adjustmentmay be employed. In the construction shown, where there is a single cord attached to the edge of the shade, a draft upon the cord will carry the screen downward, while the ordinary spring of the ordinary roller will serve to lift it when the draft upon the cord is released. Another means of securing this result is shown in Fig. 2, where the screen is carried by a frame 23, pivoted to a shaft 24, extending through bearings at the front of the goggle-glass and provided with an arm 25, to which an operating-rod 26 is connected, so that the screen may be carlied to either of the positions shown. in full and dotted lines. It will be seen that in each case the screen is outside the casing, so that it cannot be affected by smoke from or the heat of the lam p, and that by making it waterproof it may be thus arranged outside the The flexible translucent screen thus- 1. The combination with a locomotive.

headli ht and o lelass thereof and a su a b an X" i plemental reflector arranged for reflecting a portion. of the light upward, of a translucent shade, and means formoving the shade across the outer face of the goggle below the reflector, substantially as described. 2. The combination with a locomotiveheadlight and goggle-g1 ass thereof, and a supplemental reflector arranged to reflect a portion of the light upward, of a waterproof the outer face of the goggle below the reflector, substantially as described.

3. The combination with a locomotiveheadlight and giggle-glass thereof, and a supplemental reflector arranged to reflect a portion of the light upward, of a translucent shade, a roller supporting the shade arranged below the supplemental reflector, and means for moving the shade across the outer face of the goggle below the reflector, substantially as describe In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDGAR A. EDlVARDS.

Witnesses:

H. M. G] LLMAN. Jr. l V. CLAnENcn Dov-n.1,.

shade, and means for moving the shade across

Images