USRE3471E - Aaron c - Google Patents

Description

A. c. VAUGHAN.

Head Light for Locomotives.

Reissued June 1, 1869.

Nof 3,471.-

n. PETERS, mum y. war-mum. 0.0

AARON c. vnueean, or PHILADELPHIA, PE

1867 reissue N 0. 3,471, dated June N 0. 71,431, dated N Member 26,

Letters Patent FOR LOCOMOTIVES.

HE AID-LIGHT o in these Letters Patent and making partof the same.

arabolic 0 the usual p The schedule referred t To all whom 'it may concern: p f the fl t 1S Be it known that I, AARON QVAUGHAS, of'Philaform, and through an o 'ng near its rear en passes delphia,Penn ylvania,didinventcertain Improvements the lamp-burner, opening, 3, cing out n the re in e L hts for coniotives; an I do hereby dehector immediat y above the ner for the admission clare the following be afull clear. and exact descripof the upp r en the ordma y glass chim y. tion of t e same. From th f n edge 0 the parabolic p rtion of the y invention consists of certain improvements, fully ieflector'H, x s a p l shed reflecti gand J, ma e described hereafter, i the he g ts of locomotives, 1n the shape the frustum a co ed to the whereby the railroad-track is illuminated more in-' plate D y tays l l, or f d with t rabohc re tensely and a gre ter distance than by the ordinary fleetor. head-lights. A lens, K, x on the front side ,a d slightly In order to enable others skilled in the art to make convex on th opposite side, be d oncentric and apply my invention,I will now proceed to describe with the ban J at the end f the same nearest 0 its const'ru tion and operation, reference being ha to the reflector H, figs I a d 2 the accompanying d wing which forms a part of this Air admitted t the chambe B through the holes s ecification, and in.whieh-- a a, in the bottom plate of the cas ng, a (1 passes thence, Figure 1 is a ve ical section of my improved headthrough the -corner-hol c c, 0 th interior of the light for locomotives, casing. The air is th more venly distribute Figure2, a front view of the same, partly in section; casing and its conte aintaiued 'n a cooler tate, and Y and the urner mo ffectually p from Figure 3, a plan view, with the outer casing in secffeets of sudden gus s of ind than if th were tion. mitted a one or c ntral po s usual, an Similar letters 'refer to similar parts throughout the without first passing 1 t a distubuting'chamber; several views. The hea d air and es p through the flar- At the base 0 the casing A of the head-light, is a ving tube q, and through the al ventilator a the top' the bottom plate of which are ho es'a of the casing.

'ch forms the I have found that the illumination 'of the track is increased, 0 -h as regard distance and intensity, b

of the reflectingring, having h rm 0 nt' so much so, in-

chamber, B, III

' er of the plate b,w l

figs. 2 and 3, for a purnd in each corn topof the chem e ahole, c, pose described herea ter. the u e In the front of the casing A is the usual circular surface of a frustum f a cone in fro o ening G, ered'by a p ate of glass, and on the side deed. that the trac s hg to a s f abon of the casing is a hinged door, d, fig. 3. four hundred ards n th head-light, instead of for Two pla s, and E, e introduced into the casing the usual distance of out a hundr yar through the door (1, nd rest the op late I; o A lens may e us with or without the m or ex the chamber B, the dges of the plates her in con tension J, and the rim or extension a be use ach other, and being apte suitable without the lens.

own I fi s I an I claim- 1. Incombination with a parabolic reflector, an exd in the form of a frustum of a tension or rim J shape bed to the parabola.

and, attached thereto, the

a so th t the plate withdraa n from and pl Four vertical screw-1 ff and g g, e ured o cone, a the sliding plate E, h two former pass throug 2. A arabolic reflector, an oil-reservoir, h h is secur h rods y frustum of a cone, either wit I or without the use 0 a means of the nuts h, figs. 1 and 3. lens, substantially as described.

Connected to ereservoir F is'the lamp-burner G. AARON O. VAUGHAN [he rods 9 g rve to support the p l'shed-meta reflector whi is lso secured, ymeans ofits rear Witnesses:

' to the oil-reservoir as shown in figs. 1 GEORGE E. Boomer, W. A..A. MGKINLEY.

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