US400984A - And edward j - Google Patents

Description

(No Model.)

2 Sl1eetsSheet 1.

J. WILLIAMS, E. J. FROST ,& W. DAWSON. LAMP FIXTURE AND VBNTILATOR FOR RAILWAY CARS.

I L" I Patented Apr. 9,1889.

(No Model.)

2 SheetsSI1eet 2.

J. WILLIAMS, EL J..PROST & W. DAWSON. LAMP FIXTURE AND VENTILATOB FORRAILWAY CARS; No; 400,984.

Patented Apr. 9, 1889.

W E NTORSQ:

WITNESSES: geo- 69m.

UNITED STATE PATENT OFFICE.

JOHN WILLIAMS, on JERsEY oITY, NEW JERSEY, AND EDWARD .LFROST AND WILLIAM DAWSON, OF PHILADELPHIA,PENNSYLVANIA. f

LAMP FIXTURE AND VENTILATOR FOR RAILWAY-CARS,

SPECIFICATION forming part of Letters Patent No. 400,984, dated A ril" 9, 1889.

Application filed June 5, 1885- To all whom it may concern:

Be it known that we, JOHN WILLIAMS, of Jersey City, in the State of' New Jersey, and EDW RD J. FROST and 'WILLIAM DAWSON, both of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Lamp Fixtures and Ventilators for Railway-Cars.

- Thefollowing is a specification of our said improvements, referencebeing had tothe accompanying drawings, wherein- Figure l isan exterior side view of the lamp-fixtures; Fig. 2, a vertical central secon the line a: of Fig. 1.

' a lamp for railroad use which shall be strong and durable, protected against disturbances from accidental currents of air, readily accessible for cleaning purposes, sightly in appearance, and which shall combine in itself the best method of supplying air for combustion, and at thesame time of carrying off the products of combustion and ventilating the car.

In the drawings, R represents the roof of the car, from which the lamp is suspended by means of arms A, which may be 'of any ornamental form. Th rough one of these arms'the gas to be burned is admitted and is carried down by means of a curved extension, a, to the burner B. This may be the ordinary Argand burner with the usual chimney, C. \Vithin the lower ends of the arms A is attached a horizontal ring or band, G, of metal, of sufficient width to conceal the joints of the upper and lower portions of the lamp-shades, as hereinafter described. To this ring is hinged at (l a second ring, E, preferably bev eled, as shown, on its lower surface, and pro- Vided with an interior flange or rim, e, secured to it by means of screws. A bell-glass or inverted dome, I), is secured by means of its outwardly-projecting rim between the flange e and the ring E, and is thus held in v Serial No. 167,774. (Ilo model.)

position, so as to completely inclosc the bottom of the lamp. .Opposite to the hinge d of the ring E is an ordinary spring-latch, g,

m0uuted in one of the arms A and project ing through the adjacent portion of the ring G into an opening formed in the upwardlypnojecting piece S upon the ring E. The hinge d is provided (see Figs. 5 and 6) with a coiled spring, 0, so arranged as to be wound up or tightened when the bell-glass D swings,

- downward upon the hinge. This spring 0 prevents the bell-glass D from swinging too far backward and striking either thearm A or being broken'by a too suddenstoppage upon its hinge. A porcelain shade, F, rests upon the top of the ring G and ext-ends downward within the same, preferably to a point just above the edge of the bell-glass D; Thus the lamp is completely inclosed by glass and porcelain, whichv do not become tarnished and are, moreoveneasi-ly cleanedflout the jcint between them, which otherwise would be 'unsightly, is concealed from below by means of the ring G and E. Set-screws b are provided to properly secure the shade F from displacement. Around the top of the opening in this shade F is a loosely-fitting metallic ring, f, to one side of which a segment, h, of brass is secured by means of screws, as-shown, said piece h extending about halfway around the ring. Upon the opposite side of the ring f is asetrscrew, I, to which is attached a second segment, 2', also of brass, which, however,'is not secured to the ring f, and can be clamped against the shade F by means of the set-screw I. The upper portion of the rin g f is provided with inwardly-projectin gtou gues t, between which, as well as through which, are openings 7c, as shown clearly in Fig. 1. The objectof these tongues 25 is to support the second chimney-piece, H, which is provided with a rim or flange, 1, adapted to rest upon the tips of the tongue, as shown. The purpose of the openings k insaid tongues will be explained hereinafter. To the outwardly-flaring lower end of this chimney H is attached a light ring, w, which is provided with several downwardly-depending fingers, m, joined together at their lower ends by means of a second light ring, p, and having curved springs q, arranged within them, so

as to bear lightly against the upper portion of the glass lamp-chimney G. The .wliole structure of the internal chimneys, G and II, is thus held firmly together, and also secured to the lamp-shade Fin such a way as to per mit ready removal of the different parts, and as also to avoid a too great rigidity in the attachments between glass or porcelain and metal. a

Above the lainp and within the roof of the car are mounted the ventilator-chimneys L and M, having'an open space between them. Near the topof theouter chimney, M, are a number of openings, a around which is a ring or band, N, with a free space between it and the exterior of M, and over the whole of this is a slightly conical top or roof, 0, having a downwardly-depending rim, P. Beneath that portion of the roof which is immediately over the inner chimney, L, is am etallic shield, r. \Vhen the lamp is burning, the air necessary to supply combustion is practically all admitted through the openings through the tongues t, since very little can enter, around or between the arms of the shade F and bell glass D. The entering air'is therefore heated by contact with the metallic tongues t, and also with the second chimney, 1], and is thus supplied to the flame in a condition highly advantageous "or producing the best combustion. I

The products bf combustion pass out through the central chimney, L, and thence by means of the openings u to the outer air. At the same time the heating of the two chimneysL and M produces an upward current of air from the car through the opening space between said, chimneys, and hence tends to ventilate thecar. Said open space also prevents the overheating of the car-roof by contact withthe chimney L.

The lamp is so completelyinclosed as to be entirely inaccessible to the most violent currentsof air within, the car, and at the same time 'the white reflecting surface of the porcelain shade above and the practically unobstructed bell-glass D below illuminate the car in the most desirable manner and without casting. objectionable shades either above or below. The protection of the double chimney L and M on the outside we have found amply sufiicient to guard against any disturbances of the light by blasts of air from with- The other advantages, which relate to the cleaning or removal of the lamp or portions thereof, will be obvious, and hence are not further'particularized.

Having thus described our invention, we claim- 1. The combination, with the burner-and its chimney, of the inclosing bell-glass and the inclosing dome-shaped reflectingshade, the edges of which meet together, so as to form an unobstructed space around said burner and chimney, the supporting ring or frame surroundingthe jointof saidshade and glass, and a perforated support in the upper contracted open end of said shade surrounding and supporting the upper end of said chimney and admitting air to feed the burner,

substantially as described.

2. The combination, with the burner and its chimney, of the dome-shaped reflectingshade having a contracted upper open end, the perforated clamp-ring fitted to said shade and securely supporting a separable chimney-piece therein, and a spring-clamp connection of said chimney-piece supportingthe upper end of said chimney, substantially as described. I i

3. The chimney-piece supporting-ring consisting of the annular ring fitted around the reflecting-shade, the perforated extension or fingers fitted to support said chimney-piece,

and the movable clamp-segment of said supporting-ring and its adjusting clamp-screw I, substantially as described.

4. Thecombination of the chimney, the separable chimney-piece fitted above it,and the double-ring clamp-connection between said chimney and chimney-piece, consisting of a ring secured to the lower end of said chimneypiece and connected by fingers with a second ring grasping the upper end of said chimney by interposed springs, substantially as described.

J os. MITCHELL, J AS. WILLIAMS.

son:

WM. H. MYERS, F. W. WEST.

\V itnesses as to E. J. Frost and Wm. Daw-

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