US240038A - Nathaniel g - Google Patents

Description

(NoM odel.) v v v N. O. POWELSON & C. DE'AVS.

" Reflector.

No. 240,038. Patented April 12,18 1.

v UNITED STATES PATENT OFFICE.

NATHANIEL C. POWELSON, OF BROOKLYN, AND CHARLES DEAVS, OF NEW YORK, ASSIGNORS TO THE ARCHER & PANCOAST MANUFACTURING COMPANY, OF NEW YORK, N. Y.

REFLECTOR.

SPECIFICATION formingpart of Letters Patent No 240,038, dated April 12, 1881.

7 Application filed January 28, 1881. (No model.)

To all whom it mag concern h v Be it known that we, NATHANIEL C. Pow- ELSON, of Brooklyn, county of Kings, and State of New Yrk,and CHARLES DEAVS, of New York city, county of New York, and State of New York, have jointly invented certain new and useful Improvements in Reflectors, of which the following is a full, clear, and exact description, reference being had to the accompanying ro drawings, and to the letters of reference marked thereon.

Our invention has relation to that class of reflectors commonly employed in connection with gas-lights and other illuminating contrivances wherein the reflecting-surfaces are located over the flames for the purpose of directing the light downwardly, a suitable opening being provided in the reflector for the escape of the rising heated air and products of combustion.

Among the principal objects of our invenvention are the provision of, first, a simple and efficient means of securing the reflecting panes or plates in place within the frame, by

use of which means they may be readily and easily placed or replaced; second, a simple, cheap, and durable means of suspending the reflector from the service-pipe or other support,

so that the device shall be firm and steady 0 when in place for use third, a means of easily and readily locating the burners or lights in their proper positions with respect to the reflecting-surfaces fourth, an arrangement for obtaining a superior ventilation of the reflector, 3 5 insuring at the sametime a more brilliant and complete reflection of light, an extended refleeting-surface, and diminished shadow of the burners and their connections 5 and, fifth, the production of a light and strongframe or re- 0 flector-body which is capable of being easily and cheaply made, and in which the reflecting panes or plates may be located or inserted from the exterior of the frame without disarran gin g it and without danger of displacement during 4 5 shipment. i

To accomplish all of this the invention involves certain novel and useful arrangements or combinations of parts and details of conaway.

struction, which will be hereinafter first fully described, and then pointed out in the claims. 0

Figure l of the drawings is an axial section and GIGKZLtlOIl of a reflector constructed and arranged in accordance with our invention. Fig. 2 is a plan view of one-half of the reflector shownin Fig. l, a'portion being broken Fig. 3 is a perspective View, showing the flanged rib and flanged cap-piece separated from each other and from the frame. Figs. 4 and 5 are perspective "iews of fragments of the, reflector-frame at top and bottom, showing the manner of uniting the flanged bars with the upper and lower rings. Fig. 6 is a vertical section through one of the flanged bars. Fig. 7 is an axial section of the central hub employed for supporting the reflector and its 6 5 attachments, the same being shown on a larger scale than in Fig. l. g

In all these figures like letters of reference, wherever they occur, indicate corresponding parts.

For convenience of illustration we have chosen a reflector having a polygonal base of ten sidespbut any number of sides may be employed. and the reflector may be of any desired shape and size. 7 5

A is the upper, and B the lower, ring, both being joined by a series of bars having flanges on each side, as at aa, and a vertical central rib, b. The rib 12 forms the division between the separate panes of which the reflector is composed, and the flanges a to constitute the supports for the lateral edges of the removable panes. The flanges a a are made to join with the inclined flange 0 upon the upper ring and with a corresponding flange,'0l, upon the lower ring, so that the several flanges form a complete or continuous support for all the edges of the panes, and these edges are thereby concealed from viewfrom the under sid e, as well as held in proper place. The panes employed c are usually of opal glass or similar substance, and the edges are frequently rough, so much so that if not concealed they would detract from the finished appearance of the device.

The flanges a 0d are sufficiently wide to afford 9 5 a goodbearing, and they thus dispense with g that accuracy of fitting which in many forms of reflectors is now required. The peculiar form given the connecting-bars enables us to make them. light, while they are at the same time sufflciently strong for all purposes of strength and rigidity necessary in a reflector of this class.

The cap-pieces E are intended to embrace or fit over the ribs 12, and each piece has lateral flanges e e. The glass or otherreflecting-panes being dropped. into their places from the exterior of the frame, the cap-pieces E are located upon ribs 11 and held in place by wire clips, as at g g, the wires passing through holes purposely punctured in the ribs b and in the vertical portions of pieces E. The panes are thus securely held in place, and may be removed from the frame by'simply taking out the wire clips and detaching the cap-pieces. Any section maybe taken out and replaced independently from any other section, and this from the exterior of the reflector. The flanges e e on the cap-pieces cover the lateral edges ofthe panes, so that these cannot be seen upon the outside of the reflector.

Increased stiffness is communicated to the lower ring by use of the second or covering flange, f, located above d, a distance about equal to the thickness of the glass, and flange f also conceals any defects or irregularities in the lower edge of the pane.

An independent strip may, if desired,be attached to the upper ring of the reflector by simple screws or otherwise, so that it may be easily placed or removed, and when in place this strip will afford a cover for the upper edge of the plane, so that'such edge, if rough, will not be exposed to view 5 but under ordinary circumstances, owing to the position of this upper edge, it will not be readily seen, and the covering-strip may therefore be omitted. For this reason it is not shown in the drawings.

The central hub, G, located in the upper opening of the reflector, is screw-threaded internally tor the reception of the service-pipe G.

(or equivalent support for the reflector,) and the independent distributing-pipe H, which carries the burners and their connections. The hub G is also tapped for the reception of the screw-threaded inner ends of the supportingarms L L, which are attached to the upper ring of the reflector in any convenient and substantial manner. These arms are preferably made equal in number to the reflectingpanes employed, and they are preferably connected with the upper ring of the reflector at points over the line of junction between two panes. Being screwed into the hub G the arms L L are not liable to damage or displacement by reason of the heat from the burners, as in the ordinary methods of connecting the inner ends of the supporting-arms of reflectors by means of solder, and the improved form of coupling renders the reflector firm and steady upon its support, which is not the case inconstructions wherein the reflector is simply rested upon a'sleeve passing over the service-pipe. The length of the distributing-pipe is adjusted to correspond with the size and form of the reflector, so as to bring the burners into proper position, and the distributing-pipe, being formed so as to be simply screwed into the hub G, cannot be improperly located by the workman who places the reflector in position for use.

The burners K K are symmetrically disposed about their supporting-pipe I, and they are inclined inwardly, as shown, about in a direction parallel with the reflecting-panes. They are also so arranged as to make the flame present a flat surface toward the reflector. This arrangement not only gives a more complete downward deflection of the light, but also enables us tov carry the inner ends of the reflecting-panes nearer to the center than is customary, and thus we economize in reflectingsurface and reflecting-power. The heat from the flames being, by reason of their inward inclination, directed toward the center of the reflector, requires a less extended opening for its escape, and this affords, in turn, a better and more perfect ventilation of the reflector than in common constructions, insuringa steadier light and less obstruction of the reflected light by the connections and fittings of the burners.

All the parts of our improved reflector are simple, cheap, and easy to make and assemble for use. The several parts are securely braced, and the whole construction admirably answers the several purposes and objects of the inventionfas previously stated.

The burners and their connections, as well as the reflecting-panes, may be detachedfrom the frame and shipped separately, if desired, being capable of being reassembled Without the aid of specially skilled workmen.

Although we have shown our improved reflector as adapted for use in connection with gas-burners, it is obvious that other lights may be employed if desired.

The opal-glass panes may be replaced by silvercd glass or any other suitable material.

We are aware that reflector-panes have heretofore been secured in place between an upper and lower ring by bending clips or short pieces of metal bent down upon the glass, resting the lower edge of the panes upon a narrow flange provided on the lower ring for the purpose, and we do not wish to be understood as making any claim to such construction; but,

Having now fully described our invention, what We claim as new, and desire to secure by Letters Patent, is

1. In a reflector of the character herein set forth, the combination, with the flanged bars which serve to unite the upper and lower reflector-rings, A B, and to support the removable panes, of the detachable flanged cap-pieces fitting over the vertical ribs of said bars, securing the panes in position and covering the lateral edges thereof, as explained, so that the panes may be detached from the outer face of the reflector, substantially as and for the purposes set forth. a p

2. In a reflector, the combination, with the upper and lower rings, A B, provided each with suitable flanges c d for supporting the ends of the removable reflector-panes, of the flanged bars connecting said ringsand forming a rest for the lateral edges of the panes, the flanges on the bars being made to join with those on the rings, and the panes being secured by the removable flanged cap-pieces fitting over the vertical ribs of the bars and covering the lat-,

eral edges of the panes, substantially as shown and described. Y

3. In a reflector of the character herein specified, the combination, with the lower ring, B, which is suspended from the upper ring, A,

of the two inwardly-inclined ledges f and d, 20 for support-in g and concealing the lower edges of the reflector-panes, substantially as shown and described.

4. The herein-described reflector, composed

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