Headlight-Shade. Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATESPATENT OFFICE...
JOHN R. -GREEN, OF DALHART, TEXAS,., ASSIGNOR OF ONE-HALF TO PETER KILDU 'F,
OF CHICAGO, ILLINOIS.
HEADLIGHT-SHADE.
998,501. Specification of Letters Patent. Patented July 18, 1911.
Application filed Februarp 3, 1910. Serial No. 541,810.To all whom it may concern:'
Be it known that I, JOHN R. GmEN; a
citizen of the United States, residing at
Dalhart, Dallam county, and State of Texas,
5 have invented certain new and useful Im-
-provements in Headlight-Shades, of which
the following is a specification.
This invention relates to shades intended
for use on the headlights of locomotives,
10 electric cars, automobiles, and other . ve-
hicles, and has for. its. object to provide a
simple and effective means for permitting
the engineer or driver to cut off the main
ray of light or such portion thereof as may
15 be desirable atwill.
At the present time powerful headlights
are largely used on such vehicles as those
mentioned and their use is very, desirable,
especially on locomotives intended for high
20 speed service, where it is desirable to
strongly illuminate the track and surround-
ing objects for as ,great a distance as pos-
sible in advance. However, owing to the
very feature for which such headlights are
25 desirable, viz., the intensity of the beam of
light which they throw, they possess the
disadvantage that they so blind a. person
looking toward them that it is very difficult
. to estimate the distance to them, whether
30 they are advancing or receding, and if ad-
vancing, the speed of advance. Because of
these facts many. serious railroad accidents
. have' occurred, and. a strong prejudice has
arisen against their use in certain classes
35 of service. It is therefore desirable to pro-
vide means for enabling an. engineer or
fireman to shade his headlight as he ap-
proaches another locomotive 'so that the en-
gineer or fireman of the approaching loco.
40 motive will not be blinded, in the above
described manner.
It is the' object of this invention to pro-
vide a shade which may be pulled down or
deflected by the engineer or fireman so as to
45 control the beam from.his headlight in such.
a way that the approaching engineer or"
fireman will not be blinded,.but also in such
a way that the track for a' proper distance
in front of the locomotive will be well
50 illuminated. Such . a shade must be me-
chanically strong enough to withstand the
wind and other forces coming upon it whentraveling at high speed, and it must also
be completely under the control of the 'op-
erator in the cab without the necessity of 55
his unduly exposing himself.
In the drawing Figure 1 shows a side ele-
vation of a headlight having my shade at-
tached to it, showing.a rod connected to the
shade and adapted to be connected with a 60
suitable handle or other device in the cab,
showing also by dotted lines the position
which the shade may be made to assume 4or
cutting off the main beam of light, and 'also
showing by dotted lines the manner 'in 65
which' the shade may be turned up out of
the way after the rod has been disconnected
therefrom to enable the operator to open the
front doors of the headlight for cleaning or
other purposes. Fig. 2 is a. front elevation 70
.of a headlight having my shade attached
to. it and showing by dotted lines the low-
ered position of the shade; and Fig. 3 is a
detail showing one method of securing the
controlling rod or other device in any de- 75
sired position in the cab.
A headlight 3, which may be of any suit-
able construction,' is preferably provided
with a pair of lugs 4 and 5, near.Is upper
portion, and preferably as far for ward on 6o
the . body portion- of the headlight a .po s
sible. These lugs should be some distance
apart so that they may support a shade 6
firmly against twisting forces. The shade 6,
which may be of any suitable form and size, 85
may be provided with a pair of ears 7 and 8,
adapted to be fastened to. the lugs 4 and 5,
as by means of bolts 9 and' 10. The shade
should be of a width which will permit its.
rear. portion. to extend past the body .part 90
of the lamp when the 'shade is deflected
downward into the dotted line position"
Any desired connecting means, such as'g
stiff rod 11, provided with .an enlarged end
portion 12, may be used for controlling the 96
shade from the cab. This connecting means
must be so stiff that it will hold the shade
firmly in lny, desired position, 'notwith-
standing wind. and other forces coming
upon the shade. The enlarged end portion '100
12 of the 'rod is preferably provided with
a hole 'for receiving 'a thimb. screw or bolt
13 so that when desired the rod can be easily
disconnected from the shade when the latter
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Green, John R. Headlight-Shade., patent, July 18, 1911; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth512863/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.