US 2540389 A
Description (OCR text may contain errors)
Feb. 6, 1951 F. T. FOWLER 2,540,389
SIGNAL LIGHT RAY DIRECTOR Filed Feb. 21, 1946 INVENTOR. FRED T. FOWLER ATTORNEY Patented Feb. 6, 1951 2,540,389
UNITED STATES PATENT OFFICE SIGNAL LIGHT RAY DIRECTOR Fred T. Fowler, Portland, reg., assignor of onehalf to Elwood Wiles, Portland, Oreg.
Application February 21, 1946, Serial No. 649,365
This invention relates to signal light ray directors and is particularly adapted to be used in connection with trafiic signals and the like.
The primary object of the invention is to prethe visors 3. My invention consists of inserting my new and improved light ray director 4 into the visors 3. My light ray director consists of a. ring 5 made of corrugated material, the corrugations 6 running around the drum 5 illustrated in Figures 3 and 4.
Secured vertically of the ring 5 and longitudinally of the same are corrugated partitions 1. They may be riveted or welded as at 8 to the ring 5, the corrugations running vertically of the partitions. The object and purpose of the corrugations is to prevent any of the light rays given oif by the lenses 2 being observed from an angle of the center line of the visor. The corrugations of the partitions 1 and the ring 5 kill any side reading of the light, by reflecting the rays back and forth from one corrugation to another.
ever unless the observation is directly in front of the signal that is intended to be observed by him.
In order to install the device correctly with the partitions l standing vertically, stops or vent the light rays of the signal from being read 5 guides 9 register with the opening H) which exists at an angle other than straight into the signal. on the underside of all of the visors used on sig- A further object of the invention is to provide nals. These stops register with this opening and a light ray director that can be adapted to presguide the device into place so as stated above ent equipment, especially in connection with the the partitions 1 will be standing in a vertical visors of traffic signals. 10 position. 1
These and other incidental objects will be I do not wish tobe limited to the exact meapparent in the drawings, specification and chanical structure as shown, as other mechanical claims. equivalents may be substituted still coming with- Referring to the drawings: in the scope of my claims. Figure 1 shows my invention installed in the What I claim as new is: visors of a standard trafiic signal, part of one 1. A light ray director for trafiic signals of of the visors broken away illustrating the method the type including a housing, a signal light and of installing the light ray director. a visor extending from the housing surrounding Figure 2 is a sectional view, taken through the illuminated area, said ray director including one of the visors having my new and improved a cylindrical circumferentially corrugated hollow y di r in t ll th rein, taken n line 2-2 element fittin against the interior wall of the of Figure visor, and a plurality of corrugated vertically ure 3\ is a p an pa t a y in Section View, disposed spaced apart partitions secured to the taken on line of Figure 2 0f the director inner wall of the cylindrical hollow circumferenmOVed from the Visor 0f the Signal tial corrugated element, said vertically disposed F r 4 is a p r p v i vi w of my new spaced apart partitions extending longitudinally d mp d Iight ray di t rthroughout the length of the cylindrical cir- In the drawings: cumferentially corrugated hollow element. A rd fiic Signal is indicated y 1111- 2. A construction as defined in claim 1, wheremeral h v e s a Colored lenses 2 d in the vertically disposed partitions are corrugated on both sides in parallelism with the circumferential corrugations on the element.
3. A construction as defined in claim 1, wherein cooperating means are provided between the visor and the hollow cylindrical circumferential element to maintain the corrugated partitions in vertical relation in the visor when applied, said means including stops on the element, and a cutout formed in the visor to present edges to be engaged by the stops.
FRED T. FOWLER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date I have experimented with straight wall parti- 1 1,01 Conn Dec. 7, 1920 tions 1 and outer rings 5, and I have found that 1,549,731 Mocarley Aug. 18, 1925 unless these elements are corrugated that a sid 1,593,402 Halvorson Ju y 20, 1946 reading is still possible. The object of prevent- 1,804,719 Timmons May 12, 1931 gng arts; artigle readingt of the signals is that it is 2, 37,315 Fulton Apr. 8, 1
esira e o preven he 0 server from ettin any signal that is not direct from the face 0% FOREIGN PATENTS the signal facing him, therefore when my new Number Country D 1 and improved light ray director device is installed 277,727 Great Britain Sept. 29, 1927 the corrugated partitions 1 and the corrugated 531,611 Fr n 1931 rin 5 Prevents any visibility of the light t-