US360002A - William w - Google Patents

Description

(No Model,) 7

W. W. DOWNING & A. B. UPHAM.

REFLECTOR FOR ELECTRIC LIGHTS.

No. 360,002. Patented Ma.1-.29, 1887.

ZJJZJ" L five/anions, 5g WQownmy a F166 QMJW Q3. Q//9%a/m/;

N. PETERS. Phokrl-iihognphcr. Washing'cn, D. c.

UNITED STATES PATENT OFFICE.

XVILLIAM \V. DO\VNING AND ARTEMAS B. UPHAM, OF PEORIA, ILLINOIS;

' SAID UPHAM ASSIGNOR TO SAID DO\VNING-.

REFLECTOR FOR ELECTRIC LlGHTS.

SPECIFICATION forming part of Letters Patent No. 360,002, dated March 29, 1887.

Application filed May 10, 1886.

To all whom it may concern.-

Be it known that we, WILLIAM W. DOWN- ING and ARTEMAS B. UPHAM, both of Peoria, in the county of Peoria, State of Illinois,have invented an Improved Reflector for Electric Lights; and we do hereby declare that the following is a full, clear, and exact description thereof, and that it is fully illustrated in the accompanying drawings, in which Figure l is a vertical section at XX in Fig. 3 of an electric light and our reflector. Fig. 2 is an elevation of the same slightly modified and in an adjusted position. Fig. 3is a horizontal section at Y Y in Fig. 1. Fig. 4 is a detail elevation of the suspending device shown in Fig. 2. Fig. 5 is a sectional view showing vertical reflecting-surfaces.

The carbons O of the electric light are supported by the frame, consisting of the vertical rods B, the base B, and top B. For supporting the glass globe G, the base B is formed with the flanged disk G.

The annular reflecting-surfaces R we will, for brevity, term the reflectors. These reflectors B have each a central opening corresponding to the external diameter of the globe G at the point at which the reflector is to be situated,and are secured together at the proper distances apart by any suitable means. The diameters of the reflectors are made somewhat larger than the distances between the rods B of the electric-light frame, and notches N are formed in diametrically-opposite points of the edges of the reflectors, into which notches fit said rods. Stops M, secured to the rods B, keep the reflectors at the required height.

The reflectors, fitting loosely down about the upper half of the globe G, keep the same from horizontal displacement, and so take the place of the hooks ordinarily employed for the purpose. By sliding the reflectors up above the globe, as in Fig. 2, the latter can then be easily removed.

The reflecting-rings R can either be rigidly secured together,or they can be supported by means of the posts L. (Shown in Fig. 6.) Said posts being made of varying diameter, and the reflectors being given corresponding holes, said reflectors can be raised clear of the said posts in order to be removed and cleaned Serial No. 201,043. (No model.)

and repolished, as well as each supported at of thepreviously-described means of holding the reflectors, the wire loops L can be used, which, being secured to the reflectors and loosely fitting about the tops B'- of the frame, support the said reflectors and also permit them to be elevated for the removal of the globe G. Contractions L in each of said loops enable, by their grip upon the top B", the reflectors to be supported in their raised position. This is quite an important consideration, since by means thereof the reflectors It can be raised clear of the globe and remain there while said globe is carefully removed with both hands and wiped off. It is not necessary to hold the reflector up with one hand while the other removes the globe.

Fig. 5 shows a series of vertical triangular reflectors, P, inserted between the annular reflectors R, for the purpose of limiting the radiation of light by vertical as Well as by horizontal planes. These vertical radiating surfaces may be of any desired number; but Where the light is placed at the intersection of two streets we use four of the triangles, as shown, for the purpose of confining the reflected light to the streets.

To remove the reflecting rings from the frame of the light, they are inclined so as to elevate the notches N at one side and depress the opposite notches and thereby clear the same from the confiningrods B.

The reflecting-rings or reflectors R can be made perfectly flat; but We deem it preferable to curve the same, as shown, and thereby reflect the light to greater distances along the streets. Being horizontal, the reflectors can be influenced, but very slightly by whatever wind is blowing.

To insure that the reflectors shall stay about the globe and not be tossed upward by the wind, we sometimes give the loops L a second contraction, L, which, gripping beneath the top B of the frame, secures the desired result.

Instead of notching the edges of the reflectors R to engage with the rods B, the ends of the posts L can be adapted to embrace said rods. As indicated in Fig. 1, the ends L of said posts can be outwardly bent and clasped about the rods, the upper ends as well as the lower ends." To keep the globe G and the reflectors B from jarring each other and the cold of the latter from chilling and fracturing the glass of said globe,we solder or otherwise affix to more or less of the edges of the central apertures of the reflectors R small spiral coils of wire W.

What we claim as our invention, and for which we desire Letters Patent, is as follows, to wit:

1. The combination,wi tl1 the vertical framerods B, ofthe series of vertically-separated annular reflectors R, arranged between said rods, and vertical bars connecting said rcflectors and vertically adjustable with reference to said framerods, substantially as and for the purpose set forth.

2. The combination, with the electric-light frame, consisting of vertical rods B, base B, and top B", of the reflecting-rings R, loosely connected to said vertical rods, and the wires fizced to said rings and having the elongated loops through which passes said top B,whereby the reflecting-rings are supported at the required height and permitted ready elevation, substantially as and for the purpose specified. 3. The combination, with the electric-light frame, consisting of vertical rods B, base B, and top B of the reflecting-rings R, loosely connected to said vertical rods, and the wires fixed to said rings and having the elongated

Images