US1189231A - Reflector-shade. - Google Patents

Description

R, Bl BENIAMIN.

REFLECTOR SHADE. APPLICAHON man 115925,1913.

1 ,1 89,23 1 Patented July 1, 1911;.

2 SHEETS-SHEET l.

R.'B.BEN1AMIN.

REFLECTOR SHADE. APPLICATION FILED Dicos, 1913.

Patented July 4, 1916.

2 SHEETS-SHEET 2.

UNITEDfsTArEs PATENT oEEIcE.

REUBEN E. BENJAMIN, or

CHICAGO, ILLINOIS, ASSIGNOR TO BENJAMIN ELECTRIC MANUFACTURING COMPANY, F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

EEEIlEoToR-sHAD-E.

To all 'whom it may concern.'

Be it known that I, REUBEN B. BENaA- MIN, a citizen of'the United States, residing at Chicago, in the county of Cook. and State of Illinois, have invented 'new and useful Improvements in Reflector-Shades, of which the following is a full,'clear, concise, and exact description, referencebeing Vhad to the accompanying drawing, forming a part' of this specicatron.

My invention pertains't reiectors. In many -conditions of lighting itis desirable to reflect the Ylight in such a manner reason of'the over-lapping of the lighted direction of the arrows; j

' in sign lighting,

areas;- A like loss of light occurs in other places where similar conditions arepresent, as for instance, in the case of lighting advertising signs, etc., from the front.

It is the principal object of my invention to provide a reie'ctor which will reliect the rays in paths which much more in one plane than a plane at right angles thereto, and thereby to obviate the above disadvantages as well as to obtain certain advantages in the projection of light generallyl considered.A

Two forms .of my invention as embodiedin reflector shades are described, by'way of example,V in the following specification and' shown in the accompanying drawings, al.- though it will be understood, of course, that reflectors embodying my invention may be used for otherpurp'oses.

In the drawings Figure, 1 is a vertical section through a reector shade ladapted for use in connection with socketsdisposed near the walls,'in the lighting of mills, fac'- tories and the like, the section being taken on the 'line 1-'1-of Fig. 2, looking inthe verted 'plan of theshade shownin Fig.v1; Fig. 3 is a viewv similar to Fig. 1, but of a reiector shade particularly adapted for use the section-,being taken on the' um, a-e of Eig. 4, looking in the ai- Specfication of Letters'atent.

the lamp sockets are often supported will diverge.,

Fig. 2 is-an Patented July 4, 1916.

Application filed December 5, 1913. Serial No. 804,901.

rection of the arrows; Fig. f1 is an inverted plan of the` reflector shade-shown in Fig. 3; and Fig. 5 is a perspective view illusf trating the use of thereflector shade'shown in Figs. 3and4. v

ffLike reference-*characters refer to' like parts Ythrougifout the following specifica tion and the several figures of the accompanying drawings.

Referring now yparticularly to Figs. 1 and i 2,.the vreflector shade includes a socket-containing portion 10 having its upper part 11 reduced so as to inclose snugly the top por-. tion of a lamp socket 12.' Secured to the top of the reduced portion 11- isa nipple 13 which is provided with a threaded opening 111 for receiving a conduit or the like. The opening 14 is disposed Lat right angles to the aXis of the socket. The portion 10 1s enlarged, at the lower part thereof, so as to produce va chamber 15 lfor containing the base and adjacent portion of the lamp, such chamber having formed thereinV ventilating apertures 16. The apertures 16.per

Init the hot air to ow away, and thus preventy overheating of the .socket and lamp. Below the chamber 15, the shade isformed with a reiiecting vportion 17 which is of` spherical curvature andeXtends downward vfrom the rear part'of the portion 15, curvingaway so as to vanishl at'. the front part of the portion 15. The spherical portion is cut of at the top to form an opening just sufficiently large to receive "the lower end of the socket which may thus be readily secured to the shade by spinning its edge overl the edge of the: opening 'in the shade.'

The reiecting portion 17 merges, at its lower edge into a large reliector 18, which is wider in one direction than another. This result is obtained by originally forming thereflector 1-8-'substantially spherical and then causing it to be attened.,

The reflector 18`i's so shapedthat across section taken` throughv the axis thereof at the narrow part-i. e.`a section as illustrated in Fig. 1-is substantially a parabola,so that the 'light rays are reflected, in one direction, along parallel paths. A cross section, on the other hand, taken at right angles to the above, at the wider part, is a non-parabolic curve,'so thatthe reflected rays, in this direction, are spread out. The reiectora18 is inclined with respect to the socket. That is to say, the axis of the reflector is at an angle to the axis of the socket so that the reflector 18 extends forward in akdirection opposite to the conduit receiving opening 14 of the nipple 13.

An important use of .the reflector shade shown in.Figs. 1 and 2, is in connection with the lighting of mills, etc., from the walls thereof. Vhen so used, the nipple 13 is securedto a conduit'extending horizontally from the wall, the wires -being led through the nipple into the lamp socket. (,It will be seen that, when the reflector shade is thus .used, the reflector portion 18 will vdirect they light away from the walls and will 'light an area which, by reason of the flattened nature of the reflector portion, 'is very wide in a direction parallel with the wall,` and that practically no light is wasted in illuminating the wall itself. By the use of a` plurality of units, each having a reflector shade of the kind described above, a very uniform distribution of light may be obtained, without waste, and without the necessity of placing theglamp in an inclined position,-which` is deleterious tometallic filament lamps.

The reflector shade shownin Figs. 3, 4

and 5 is similar to that shown in Figs. 1 and r '2 except that the portion 15 is dispensed with, the spherical reflecting-portion 17 extending from the lower part `of the portion 10. In this case the portion 17 is of greater proportionate size thanin the device 1described in connection with "Figs 1 and 2,

and thernipple 113 `is disposed so that the conduit-receiving opening'let extends in the same direction as the reflector portion 18.

One of the uses of the reflector shade shown in Figs. 3-5 is clearly illustrated in Fig. 5, in which 19 designates an advertis ing sign or the like.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is- 1. A reflector shade having-a casing portion adapted to receive an electric lainp socket `land having a conduit-receiving opening disposedJat right angles to the axis thereof, said shade having a concave reflector portion Wider in one direction than another, whereby the light is distributed over an area i which is wider in one direction .than another HESSQS.

the axis of the reflector being inclined tothe axis of the socket. A

2. A reflector shade having a portion adapted for connection with an electric lamp socket, anda spherical reflecting portion extending fromsaid first named portion, and

having a concave reflector portion extending from said second named portion wider in one direction thany another, whereby the light is distributed over an area which is wider in one ldirection than another the axis of the reflectorbeing inclined to the axis of the socket.

3. A reflector shade having al portion adaptedl for connection with an electric lamp socket,- and a spherical reflecting portion extending from said first named portion, and having a concave reflector portion extend ing from said second named portion anddisposed at an inclination with respect to .said first named portion, 'said reflector pory tion being wider in one direction -than another, whereby the lightis distributedat an angle to the axis of the socket and over` an area which is wider in 'one direction than another. e

4. A reflector shade-having a spherical'refleeting portion cut off at its top to formv an 'opening for the reception of a lamp socket clined to that of the socket, said dished por-v tion beingelliptical in cross section perpendicular to its axis. l y

In witness whereof, I have hereunto subscribed my name in the presence of two wit- REUBEN B.V BENJAMIN. Witnesses:

E. RL KING, JV. PERRY'HALEY.

Images