US 2591269 A
Description (OCR text may contain errors)
April 1, 1952 F, LEHQCZK| 2,591,269 SIGNALING WAND FOR FLASHLIGHTS Filed Aug. 28, 1950 Fly. 2 H UPAQUE FI'g l J Il El] 1./6//r p/FFz/s/N@ ELEMENTS l5 /9 l E l /7 n y Y 3 3 A 5 i E a i E Fig 3 7 i rgA/VSPAREA/r llln" ziffxwfw/N@ Il. /2 i 9 5 -l [HH H1 l 5 l/ l a .l [U 11| l 5/ f l /3 y A z i 1 I l /4 6 !!!EHE /00 WW mf/r /FFw//v L EME/V75 7 Frank Lehoczki INVENToR.,
WM 5MM l Patented Apr. 1, 1952 UNITED STATES PATENT OFFICE Frank Lehoczki, United States Army Application August 28, 1950, Serial' No; 181,864
The present invention relates to new and useful improvements in flashlight attachments and more particularly to means for providing a transparent tubular member with internal diffused light to form a signalling wand free from blinding or annoying glare.
An important object of the invention is to provide a novel arrangement of light diffusing members enclosed in a transparent tubular body and positioned in the path of the beam of light from a Flashlight lamp to form an elongated illuminated wand which may be used as an airplane landing signal, traffic signal, or for other purposes where an anti-glare, illuminated signalling device is needed.
A further object is to provide an attachment for flashlights of this character of simple and practical construction, which is efficient and reliable in use, neat and attractive in appearance, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.
Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:
Figure 1 is a side elevational view;
Figure 2 is an enlarged longitudinal sectional 5 view taken on a line 2--2 of Figure 1; and,
Figures 3 and 4 are transverse sectional views taken on the lines 3 3 and 4-45 respectively of Figure 2.
Referring now to the drawing in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of my invention, the numeral 5 designates a transparent tubular casing having 4an.- internal attaching ring 6 cemented in one end of the casing for threading on the outer end of the barrel I of a flashlight.
Ring 5 is formed with an inwardly projecting fiange 8 engaged behind a transparent disk or lens 9 held against the reflector I0 of the flashlight. An insulation washer Isa. spaces the reflector from the `barrel I. The outer end of tubular casing 5 is closed by an opaque end wall or cap I I.
A light diifusing structure, designated generally at I2, is held in the casing 5 between inner disk or lens 9 and outer end wall Il, and com prises a group of inner longitudinal bars I3 of Lucite which includes a main bar I4 of a width equal to the internal diameter of member 5 and 3 Claims. (Cl. 17h-329) a pair of relatively narrow bars I5 at opposite sides of bar I4 at its center. A similar group of longitudinal bars I6 is positioned at the outer end of the light diffusing structure I2 against the end wall II.
Between the inner and outer groups of longitu dinal bars I3 and I6 is a group of square shaped Lucite blocks II positioned one upon the other and with alternate blocks having their corners I3 staggered so that each corner at the opposite surfaces of the blocks as well as at the side edges of the blocks will reflect light passing through the blocks.
The bars of the inner and outer' longitudinal gro-ups i3 and I5 as well as the blocks I'I are cemented or otherwise secured to each other to hold the individual members of the diffusing structure in assembled relation.
The vertical edges of the main bars I4 of the inner and outer longitudinal groups are bevelled, as shown at I9, and are alined with the opposite corners I8 of alternate blocks I'I.
Light from the lamp of the flashlight will be conducted through the longitudinal bars i3 and I5 and-also through the blocks II and will be refiected Vlaterally at the sides of the bars and blocks as well as at the opposite surfaces of the corners of the blocks to provide diffused light internally of the transparent casing 5 throughout its entire length.
In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the construction, operation and advantages of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.
It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.
Having described the invention, what is claimed as new is:
l. A flashlight attachment comprising a transparent elongated casing adapted for attaching to the outer end of a ashlight barrel, an opaque end wall closing the outer end of the casing and including inner and outer longitudinal bars and a central group of square shaped blocks positioned in a stacked staggered relation. with respect to each other between the inner and outer longitudinal bars to expose part of the surface of each block as well as the side 'edges of the blocks, and said bars and said blocks having the property of conducting light subjected to one end of the light diiusing structure by the flashlight for reflecting the light at the flat surfaces of the bars and blocks.
2. A flashlight attachment comprising a transparent elongated casing adapted for attaching to the outer end of a flashlight barrel, an opaque end wall closing the outer end of the casing, and a light diilusing structure in the casing having the property of conducting light and composed of a plurality of units each constructed to provide at edge portions positioned parallel to the axis of the casing to reect diffusedl light from the ilashlight at the sides of 16 an opaque end wall closing the outer end of the 20 4 casing, and a light diffusing structure in the casing having the property of conducting light and composed of a plurality of units contacting each other and each constructed to provide flat edge portions positioned parallel to the axis of the casing to reect diiused light from the lash light at the sides of the casing.
REFERENCES CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS Number Name Date 2,362,131 Haggart, Jr. Nov. 7, 1944 2,431,091 Thomas l Nov. 18, 1947 2,434,741 Hefner et al. Jan. 20, 1948 2,486,998 Szeklinski Nov. 1, 1949