US926474A - Gas-lighting apparatus. - Google Patents

Description

R. M. DIXON. GAS LIGHTING APPARATUS.

APPLICATION FILED FEB. 28, 1900.

926,474. Patented June 29, 1909.

WITNESSES.

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UNITED STATES PATEN T OFFTQE.

ROBERT Mv DIXON, Oi EAST ORANGE, NEW JERSEY, ASSIGNOR TO THE SAFIQ'lY ()Alt HEAT- ING & LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

GAS-LIGHTIN G APPARATUS.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed February 23, 1906. Serial No. 302,425.

1 tain new and useful Improvements in Gas- Lighting Apparatus, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates broadly to improvements in the arrangement and construction of a suspended gas-lighting apparatus, and refers more particularly to improvements in the features constituting the ventilating and suspension means therefor.

This invention proposes, among other objects, a suspending means for apparatus of the class described, whereby the lamps will be rigidly held in a osition irrespective of the strains resultant from the movements of the units of transportation, such as railroad cars.

Another object within the purpose of this invention is an arrangement of the gas conducting members, whereby the desired flow of gas may be obtained and, at the same time, a neat and attractive structure be produced which will eiliciently carry out the desired action.

The invention also contemplates such adaptation of parts that the vitiatcd products of combustion will be properly discharged to the outside of cars, whereby the air content thereof will not be contaminated.

Other objects and advantages will be in part obvious and in part pointed out hereinafter.

with those and other ends in view, this invention, accordingly, consists in the features of construction, combinations of parts, and arrangement of elements which will be exemplified in the embodiment thereof hereinafter described and the scope of the application of which will be indicated in the following claims.

In order that the invention may be more fully understood and made comprehensible to others skilled in its relating arts, drawings illustrating a convenient manner of carrying out the same are appended as a part of this specification, and, while the controlling principles of the invention may be otherwise applied by modifications falling within the scope of the claims, the hereindescribed embodiable to employ in practice, and is regarded as representing substantial improvements over the many implied and obvious variations of the same.

In the accompanying drawing, which exemplifies the essential characteristics of the invention, the parts thereof are shown in sectional elevation and assembled for actual use, and in such drawing, like numerals denote corresponding features.

As tending to render better understood certain prominent advantages obtained as a result of this invention, it may be preliminarily pointed out that a steady ventilation is rendered difficult in railroad service on account of the exterior excessive air-currents resulting from the rapid motion of the train. Such motion, furthermore, causes a considerable swaying and vibration in the cars, which undesirable movement tends to work loose the parts of the lamp, particularly when the same is suspended at a distance from the ceiling of the cars. Furtlwrmore, as the complete lamp structure should possess an attractive appearance and embody an artistic design in agreement with commercial (lictates, it is essential that the actual structure should not only conform to such requirements, but should also be one in which the parts going to make up the same may be readily assembled to form a rigid arrangement in which all of the parts will maintain a permanent relationship under the ordinary strains imposed in railroad service.

In the practical adaptation of this invention, as employed in suspending a cluster of lamps, it will ordinarily be preferable to cmploy a plurality of suspending arms which converge from a wide ceiling base to the lamp body carried at their lower extremities. Such an arrangement is shown on the drawings exemplifying this invention, from which it will appear that one of the arms 1 may also constitute a suitable conduit for the gas used in maintaining the illumination of the lamps. Such arm may be screw-threaded or otherwise fixed to a perforate part 2, which may be seated against a ceiling through the base 3. Vertically rising from said member and in fluid-tight connection therewith, is a short pipe-section 4 which, at its upper end, is similarly joined to a supply pipe 5 and carries an adjustable nut 6 which is adapted to be brought against a ment is that which will ordinarily be preferl bearing-plate 7 and thereby maintain the member 2 against the car ceiling with the requisite firmness. The other supporting members may be similarly secured to the ceiling, as exemplified by the analogous construction to the left of the drawing. At their lower ends, the aforesaid arms take into a center casting 8, and, in connection with the conduit support 1, an interposed nipple 9 may be employed for conveniently securing the desired tightness and fit of the joints. Such center casting provides acentral gas-chamber 10, which opens at its lower end into a series of radiating gas tubes 11, which at their outer ends, carry any preferred type of lamp 12, although, in this connection, that shown by the drawings possesses many eminent advantages and will ordinarily be employed. Such lamp is not here specifically claimed, as the essential features thereof have already been disclosed and claimed in other applications.

It will be understood that a considerable strain is had at the union with the center casting of the supporting arms and gas tubes, and to relieve such part of undue stresses, certain adjustable brace-members are provided and may now be described. To this end, a casing 13 provides peripheral apertures through which the gas tubes project in a close-fitting relation. It will be readily understood that such casing may consist of one or more parts, which, if so desired, may be separable within the plane of the gas tubes, so as to embrace the same from opposite sides, and, furthermore, that an additional adjustable means for insuring a tight fit may be resorted to. Thus, a shield '14 may be utilized in this connection by providing a properly shaped inner end 15 for conforming to the peripheral apertures in the casing. It will now be apparent that, by restricting the vertical movement of the casing 13, the aforesaid strains may be en.- tirely removed from the mentioned joints. Preferably, this will be accomplished through means adjustably abutting the upper and lower ends of such casing and, to this end, an end-piece 1 is adjustable vertically toward and away from the center casting through a center link 16 having its ends in screw-threaded relation with the respective parts. A locking-ring 17 may also be interposed between the parts 13 and in order to prevent any undesirable rotary motion therebetween. The upward movement of part 13 may similarly be resisted through the medium of a crown 18 secured to the center casting through an adjustable link 19. Such crown 18 may extend directly into abutment with the casing 13 or an annular member 20 may beinterposed and provided with apertures through which the arms may take into the center casting. If desired, such annular member may also have an interlocking union with casing 13 so as to restrict the parts against undue relative ro-' tation. It will be readily appreciated that this arrangement, while of the utmost sim-' plicity consonant with the structural requirements, is well adapted for preserving the relationship of the parts even in the presence of considerable strains. Furthermore, the arrangement is one capable of ready adjustment and suitable for properly distributing the stresses along desired parts.

In practice, the structure will ordinarily be so suspended that the discharge ends of the lamps will be equidistant from the ventilator opening 21, which may be surmounted by any suitable ventilator, such as that shown on the drawing and designated by 22. To supplement the action of such ventilator, a bell 23 is provided and, preferably, the same comprises a perforate dome-shaped portion 24 terminating in its rise in a discharge opening 25. A distributive plate 26 of substantially equal dimensions with said opening is suspended by means of straps 27 at a slight distance therebelow. In its preferred construction, such bell also provides a lateral rim 28, which is spaced a distance from the car ceiling to which it is affixed by means of suitable screws 29, so that the more highly heated portions of the bell will-not contact with the car ceiling. This arrangement provides a highly satisfactory device for receiv ing and properly discharging the products of combustion as they escape from the underlying lamps.

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

1. In a gas lighting apparatus, a central supporting member having a channel therethrough, a plurality of gas conduits radiating from said member and in communication with the channel thereof, a casing in fixed re lation with said conduits, and means adjustable from opposite ends of said member and adapted to determine the vertical position of said casing with respect to said member.

2. In a gas lighting apparatus, a member, a plurality of supporting arms radiating from one end thereof, a casing interfitting with said arms and adapted to determine the angularity thereof relatively to said member, and an adjustable means carried by each end of said member and adapted to abut corre sponding ends of said casing to fix the vertical position thereof.

3. In a gas lighting apparatus, a central vertical supporting conduit, gas tubes radiating therefrom, a casing having perforations through which said tubes protrude and within which they closely fit, whereby said tubes and easing will be relatively fixed, and an adjustable means carried by opposite ends of said member and adapted to abut corresponding ends of said casing to adjustably determine the vertical position thereof.

4. In illuminating apparatus, a central supporting member, supporting arms laterally extending therefrom, a casing closely interfitting with said arms at a distance from said supporting member, and means co-acting respectively with corresponding ends of said casing and supporting member and adapted to be adjusted to'determine the angular relation between said latter parts.

5. In illuminating apparatus, a central supporting member, supporting arms radiating therefrom, a casing closely inter-fitting the said arms at a distance from said member, said casing being movable longitudinally of said member, and an adjustable abutment at each end of said member and adapted to co-act with said casing to determine the ver tical relation of the same with said member.

6. In illuminating apparatus, a vertical, central supporting member, equidistant arms radiating therefrom, a casing having orifices through which said arms protrude, and within which they closely fit, said casing encircling said member at an intermediate por tion thereof, and means for positively vertieally adjusting each end of said casing relative to corresponding ends of said member.

7. In illuminating apparatus, a central supporting member, a plurality of supporting arms radiating therefrom, a substantially globe-shaped casing in fixed relation to said arms at a distance from said member, said casing converging toward said member, an abutment carried by each end of said member, and adjustable means adapted to actuate said abutments into contact with said casing to determine the angular relation of the several parts.

8. In illuminating apparatus, a member, a plurality of supporting arms radiating therefrom, a casing closely inter-fitting with said arms at a distance from said member, said casing encompassing said member, and adjustable means carried by each end of said member and co-acting with corresponding ends of said casing to determine the longitudinal position thereof relative to said member.

9. In illuminating apparatus, a central supporting member, arms radiating therefrom, a casing having perforations through which said arms protrude whereby said parts will be relatively fixed, end pieces abutting said casing and concealing the ends of said member, and adjustable means carried by the opposite ends of said member and in engagement with said end pieces, whereby the latter may be adjusted to determine the longitudinal position of said casing.

10. In illuminating apparatus, a central supporting member, a plurality of suspending arms laterally taking into engagement therewith, a plurality of supporting arms radiating from said member, a substantially globe-shaped casing in iixed relation to said latter arms at a distance from said member, said casing converging toward said member, an abutment carried by each end of said member, and adjustable means adapted to move said abutments into contact with said casing to determine the position of the several parts.

11. In illuminating apparatus, a vertical central supporting member, suspending arms radiating from one end thereof, supporting arms radiating from the other end thereof, a casing having orifices through which said supporting arms protrude, said casing having an orifice whose edges encircle said member intermediate the ends thereof, and means for positively adjusting each end of said casing relatively to corresponding parts of said member.

12. In illuminating apparatus, a central supporting member, suspending arms radiating laterally from one end thereof, supporting arms similarly radiating from the other end thereof, a casing interfitting said arms at a distance from said member, said casing being movable longitudinally of said member, and an adjustable abutment at each end of said member and adapted to 00- act with said casing to determine the relation of the same with said member.

13. In illuminating apparatus, a vertical, central supporting conduit, suspending arms laterally radiating from adjacent the upper end thereof, one of said arms constituting a supply pipe for said central conduit, tubes laterally radiating from adjacent the lower end of said conduit and adapted to serve as supporting arms for a cluster of lamps, a casing having perforations at a distance from said conduit through which said tubes protrude whereby they are relatively fixed, end pieces abutting said casing and concealing the ends of said conduit, and adjustable means carried by the opposite ends of said conduit and in engagement with said end pieces, whereby the latter may be longitudinally translated to determine the position of said casing.

14. In illuminating apparatus, a ventilator comprising a dished top plate, an annular deflector secured to the periphery of said top plate, a cylindrical chimney, means connecting said chimney and annular deflector, and a conical screen extending from the top of said chimney to the under side of said top plate.

15. In illuminating apparatus, a horizontal top plate, an annular deflector circumscribing the periphery of said top plate, an upright escape conduit leading toward said top plate, and a screen interposed between the upper edge of said conduit and the underlying face of said top plate, whereby escaping gases will pass through said screen prior to being discharged.

16. In illuminating apparatus, a lamp, and

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a ventilator overlying said lamp and comprising a perforate, dome-shaped deflecting member having an enlarged escape vent in the rise thereof and a deflecting plate interposed between said lamp and said vent.

17. In illuminating apparatus, a lamp, a ventilator overlying the same, said ventilator comprising a dome-shaped member having an enlarged escape vent in the rise thereof and having a plurality of openings arranged in its body portion, said member providing a peripheral flange, and means for spacing said flange at a distance from the adjacent portions of the ventilator.

18. In illuminating apparatus, a ceiling having an opening therethrough, a ventilating device Within said opening, said device consisting of a perforate, dome-shaped portion having an enlarged escape vent in the rise thereof, a baffle-plate of substantially coextensive area positioned at a distance below said opening, said dome-shaped portion having an annular flange extending from the base thereof and positioned at a distance from said ceiling, and a lamp underlying said ventilating device.

19. In illuminating apparatus, a ceiling having a suitable opening therethrough, a ventilating means co-acting therewith and comprising a lower, dome-shaped member having an escape vent in the rise thereof, a deflecting plate carried by straps and positioned a distance below said opening, said member being perforated in its body portion and providing an annular flange extending from its lower periphery and having an upturned border, whereby said flange may be positioned at a distance from said ceiling, and a lamp underlying said ventilator.

In testimony whereof I aflix my signature,

in the presence of two Witnesses.

ROBERT M. DIXON.

Witnesses:

G. R. JEWETT, E. E. ALLBEE.

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