US373057A - dixon - Google Patents

Description

(NO Model.) 2 Sheets-Sheet 1. R. M. DIXON.

GAS LAMP.

Patented Nov. 15,v 1887.

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x .(No Model.) v 2 Sheets-Sheet 2.

R. M. DIXON.

GAS LAMP.

Patented Nom-15, 1887.

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N, PETERSV PhaIa-LitlwKl-apher. Walhngton, D. C

UNITED STATES PATENT trice.

ROBERT M. DIXON, OF EAST ORANGE, NES/V JERSEY, ASSIGNOR TO THE 'PINI-SCH LIGHTING COMPANY, OF NEY YORK, N. Y.

GAS-LAMP. Y`

SPECIFICATION forming part of Letters Patent No. 373,057, dated November l5, 1887.

Application nien April 13, i887.

' East Orange, Essex county, New Jersey, have in whichinvented a new and Improved' Gas-Lamp, of which the following is a full, clear, and exact description.

This invention relates to improvements in the kind of lamps` described in United States Letters Patent Nos. 268,373, 242,974, and 280,761.

The object of my invention is to improve the above-named devices, so as to cause the lamp to throw the light in an upward, outward, and downward direction, thereby making the room more cheerful and avoid the throwing` of shadow by the lamp. This I accomplish without lessening the amount oflight thrown downward.

They invention consists in providing the lamp with reflectors for throwing the rays of the light in different directions, and the arrangement and combination of the various parts of the lamp, as will be more fully hcreinafter set forth.

Reference is to be had to the accompanying drawings, forming part of this specil'ication,

Figure l is a vertical sectional view of my -irnproved lamp, taken on line c c, Fig. 4. Fig.

2 is a View looking down the chimney. Fig. 3 is an enlarged sectional view of the lower chimney, showing the manner of connecting it to the upper chimney and to the lower reflector. Fig.4 is a horizontal section taken on line k 7c, Fig. 1; and Fig. 5 is a modification in section of the upper part of my improved lamp.

A is the body proper of the lamp, which may be attached to any suitable supports in the desired manner. Projecting from an annular iiange, ct, on body A are three or more lugs, b, each having a T-shaped opening, d, as shown. v l

B is a reflector, preferably made of castiron, having a central opening, e. The re` ector B from the opening 'e preferably slopes outward andupward, and upon its upper edge are secured buttons f, each having a head which will pass easily through the larger part of the T-shaped opening d. These buttons f Serial No. 234,667. (No model.)

are so arrranged on the refiector B as to register with the openings d in the lugs b, and when the heads of the buttons f are passed through the openings d the reector B may be turned so that the shank of each buttonf will slide in the narrow part of its T-shaped opening d, the head of the button resting on the lugb, thus holding the rellector B in place. A set-screw, g, passed through the'retlector B, when screwed up against one of the lugs b, serves to hold the reliector B in position. The edge of the reliector B at the opening e is turned up, or a ledge formed thereon, as at h, in the top of which ledge is formed a groove, t'. In the bottom of groove i is placed a packing,j, preferably of asbestus..The lower edge of a chimney, C, of transparent glass, rests on the packing j in the groove t'. Upon the upper edge of the chimney C rests the lower end, d', of the upper chimney, D, to which it is fastened by asbestus or other suitable non-burning cement, and which chimney D is supported in the lamp by means of the braces E, secured to the chimney D and the flanged by rivets or other suitable means. i

The gaspipe F enters the lamp through the -hody A, and is carried up alongside the upper chimney, D, over the same, and down through the center of the two chimneys Dand O, and has ,upon its lower end any desired number of burners G. The inner wall of the chimney D has radial arms Z,by which the pipe F is centered.

. A cup, H, surrounds the pipe F, to which it is secured in thelower chimney, O, the lower .part of which cup E projects, by preference, slightly below the chimney C. The cup H, being somewhat smaller in diameter than the chimney O, forms a passage, o, between its outer walls and the inner walls of the chimney C, for the escape of heated air and products of combustion from the burners G.

The hood I of the lamps is of glass, preferably opal glass,and itslower edge rests upon the body A. An upright ring or tube, J, surrounds the chimneyD and forms apassage for the airto enter the lamp from above.

place by means of braces u, to which it is secured, which bracesuextendoutwardlyfromthe chimney D. AnA annular perforated cap, K,

This ring J is held in IOO having aflaring upper part, K, surrounds and projects partly below the upper part of the hood I.

A cover or plate, L, may be held above the 5 chimney D in the flaring top K of' the cap K by means of braces y, secured to theinncr wall of the top K and to the under side of the plate or cover L.

The reflector B is covered on both sides with 1o enamel 1)',or other highly-refractive substance, and the cup H is also covered with enamel h', or other refractive substance,in the same way. The rays of' light from the burners G will strike the refractory surfaces b and h and be deflected downward and upward, as indicated in Fig. l. The chimney G,being transparent, allows the rays deflected from the surface h to be thrown upward through the hood I, thus lighting the upper part of the car or zo room.

The opening e is made sufficiently large to allow the rays of light to strike alarge surface of the enameled portion h.

The glass globe M is suspended downwardly from the body Ain any convenient manner.

The air enters the lamp through the perforations in the cap K, passes downward through the passage formed between the chimney D 3o and ring J and out into the chamber between B and I. From there it passes through holes in the body A into the combustion-chamloeri The products of combustion travel up O. through the opening c and chimney C D and out through the cap K, as indicated by the arrows in Fig. l.

In passing up the chimney D the heated air heats the said chimney and its braces Z and u, and the air entering in along the outer wall 4o ofthe chimney D is heated to some extent. rlhis furnishes to the burner heated air steady and even in volume, 11o sudden gusts of air being allowed to pass the burner, thus giving a steady brightly-burning flame.

In the modification shown in Fig. 5 the hood I has a vertical upper portion, e'. Upon this vertical part c a ring, f', formed upon or attached to the cap K, rests.

The lower part of the cap K, below the ring f, projects slightly below the upper edge of the hood I.

Having now described my invention, what I claim is- 1. In a` lamp, the reflector B, provided with oppositely-arranged reflecting-surfaces for reflecting the light upward and downward, combined with the central reflector, H, surrounded by the reflector B, and with the burners G, arranged to throw the light upon both reflectors at the same time, substantially as described.

2. In a lamp, the transparent chimney C and glass hood I, carried above said chimney, in combination with the central reflector, H, which islsurrounded by said chimney, and with the burners G, placed to throw the light upon said reflector, substantially as described.

3. In a lamp, the refleetorcup H, combined' with burners placed to throw the light upon Y said reflector, in combination with the chin1- ney C, reflector B, having refractory surfaces b on both sides and arranged around the reflector-cup H, the chimney C being between said reflectors, substantially as described.

4. The double reflector B,transparent chimney C, supported by the same, chimney D, above chimney (i, and braced ring J, outside of the chimney D, and carrying cap K,in cour' bination with the glass hood I, outside ofchimlney D, and ring J and the central reflector,

H, substantially as described.

\ s5. ,The chimney D, having bracesl and u, 'glass chimney C and reflector B, the chimney D resting upon the chimney C, which in turn is supported by the reflector B, in combination with ring J, surrounding its upper part, with the cap K, carried by said ring J, hood I, connected to said cap and surrounding said chimney D, and inner flame-reflecting cup, H, surrounded by the chimney C and reflectorAB,

and carried above the burners, and with the ROBERT M. DIXON.

W'itnesses:

GUsTAv SCHNEPP, HARRY M. TURK.

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