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Патент USA US2123941

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July 19, 1938.
2,123,941
w. H. IGREENFIELD
GAS TRACK HEATER
Filed July 8, 1956 _
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INVENTOR
BY
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2,123,94Li
Patented July 19, 1938
UNITED’ ‘STATES
PAT EN'T OFF I CE
2,123,941‘
GAS ' TRAC K HEATER
,
William H; Green?eld, Philadelphia, Pa.
Application July 8, 1936, Serial Nb. 89,563
5 Claims.
The object of this invention is to devise a
(01. 246-428)
portion, and this ?tting receives the looped pipes
simple, cheap, and compact form of track heater
which utilizes gas as a fuel to heat‘ the burner..
With the above and other objects in view as
5 will hereinafter appear, my invention compre
_ hends a novel vgas track heater.
Itfurther comprehends a [novel track heater,
wherein the body portion is in the form of a
single casting which forms one side and the ends
of a heating chamber and thereby a shield for
the ?ame and which carries the burnerand fuel
feeding means, novel means being provided for
introducing air for combustion ‘and for venting
the heater.
15
Other novel features of construction and ad
vantage will hereinafter more clearly appear in
the detailed description and the appended claims.
For the purpose of illustrating the invention,
I have shown in the accompanying drawing a
typical embodiment of it, which in practice, will
give satisfactory and reliable results. It is, how
ever, to be understood that the Various instru
mentalities of which my invention consists can
be variously arranged and organized, and my in
25 vention is not limited to the exact arrangement
and organization of these instrumentalities as
herein set forth.
Figure 1 is a perspective view of a track heater
embodying my invention in assembled relation
30 with a rail to be heated.
Figure 2 is a sectional elevation.
Figure 3 is a top plan view of a portion of the
heater.
Figure 4 is a bottom plan view, and
35
Figure 5 is a rear elevation of the heater when
inverted.‘
Similar numerals indicate corresponding parts.
Referring to the drawing:
The track heater is provided with a body por
410 tion I in the form of a casting having a rear
I2 having their free ends directed towards each
other and receiving the ends of the foraminated,
tubular, screen guard I3 and forming two spaced
burners with their delivery ends directed towards 5
each other. The T shaped ?tting II is ?xed to
the body portion by a nut Ill and an elbow I5
connected with a T- I6 having a gas jet ?tting Il
which terminates above the air inlet formed by
the pipe I8.
‘
'
to the rail, it will be clear that the web of the
rail and the body portion form a closed heating
chamber having the air inlets 9 and vent open
ings ill. The ?ame from the burner will be di
rected against the web of the rail and the prod
ucts of combustion will vent through the vent 9
openings Ill.
This construction has been found in practice
to be very economical to construct, does not blow
out in a high wind, and is very e?icient in prop
erly heating the rail.
The body portion may be ?at, curved or any
desired contour to form with the web and ?ange
of the rail a heating chamber.
It will now be apparent that I have devised
a new and useful gas track heater which em
bodies the features of advantage enumerated as 30
desirable in the statement of the invention and
the above description, and while I have, in the
present instance,,shown and described a preferred
embodiment thereof which will give in practice
satisfactory and reliable results, it is to be under
stood that this embodiment is susceptible of
modi?cation in various particulars without de
parting from the spirit or scope of the invention
or sacri?cing any of its advantages.
Having thus described my invention, what I
wall 2, reversely inclined end walls 3, a bottom
claim as new and desire to secure by Letters
wall 4 and a top wall 5.
Patent is:
.
It will thus be clear that when the body por
tion is applied to a rail 6 to be heated. the down
“ wardly inclined front edge ‘I will contact the base
flange of the rail, and the upwardly inclined front
edge 8 will contact with the web of the rail.
The bottom wall of the body portion is at sub
stantially right angles to the rear wall and is
50 recessed near opposite ends to form air inlets 9.
The top wall 5 inclines from the rear wall for
wardly and upwardly and is cut out at the end
portions to form vent openings I I],
The body portion has a T shaped ?tting II
55 extending through its rear wall near its lower
10
I9 is a clamp to removably clamp the track
heater to the rail to be heated.
Assuming now that the track heater is clamped
1. In a gas track heater, a body portion having
top and bottom walls, a rear wall, and end walls
having their front edges shaped to contact the
base ?ange and web of a rail whereby the rail
and body portion contribute to form a heating
chamber, gas burners in said chamber having
their delivery ends spaced from and directed to
wards each other, and means to feed a combus
tible mixture into opposite ends of said burner in
opposite directions and the space between the
burners being unobstructed whereby the ?ame
from one burner impinges directly against the
?ame of the other burner, so that wind which
2
2,123,941
tends to extinguish the ?ame of one burner will
lengthen the ?ame of the other burner.
2. In a gas track heater, a body portion having
top and bottom walls, a rear wall, and end walls
having their front edges shaped to contact the
base ?ange and web of a rail whereby the rail
and body portion contribute to form a heating
chamber, said bottom wall having air inlets, and
said top wall having vent openings, gas burners
10 in said chamber having their delivery ends spaced
from and directed towards each other, said air
inlets and vent openings being located to elon
gate one ?ame to ignite the other ?ame in case
such other ?ame has been extinguished, and
15 means to feed a combustible mixture into said
burners and the space between the burners being
unobstructed whereby the ?ame'from one burner
impinges directly against the ?ame of the other‘
burner, so that wind which tends to extinguish
against the ?ame of the other burner, so that
wind which tends to extinguish the ?ame of one
burner Will lengthen the ?ame of the other
burner.
4. In a gas track heater operating under nat
ural draft, a body portion using the rail to com
plete a heating chamber having air admission
and venting means, gas burners in said chamber
having their delivery ends terminating in prox
imity to opposite ends of the casing and directed 1O
towards each other, means to feed a combustible
mixture to said burners, and means to attach
the heater to a rail,
5. In a gas track heater operating under nat
ural draft, a body portion using the rail to com
plete a heating chamber having air admission
ports and having vent ports at the upper end
of the casing, gas burners in said chamber hav
ing their delivery ends terminating in proximity
the ?ame of one burner will lengthen the ?ame of ' to opposite ends of the casing and directed to
the other burner.
Wards each other, a foraminated screen guard
3. In a gas track heater, a body‘ portion having
top and bottom Walls, a rear wall, and end walls
having their front edges shaped to contact the
base ?ange and web of a rail whereby the rail
and body portion contribute to form a heating
chamber, said bottom wall being cut away at
its ends to form air inlets and said top wall being
cut away to form vent openings, looped pipes
having their discharge ends forming burners di
rected towards each other, and means to feed
a combustible mixture to said pipes and the space
between the burners being unobstructed whereby
the ?ame from one burnerlimpinges directly
connecting the ends of the burners and into
which the burners discharge, means to feed a
combustible mixture to said burners, and means
to attach the heater to a rail and the space be
tween the burners being unobstructed whereby
the ?ame from one burner impinges directly
against the ?ame from the other burner so that
wind which tends to blow out the ?ame from
one burner will lengthen the ?ame from the 30
other burner and thus cause the reignition of
the ?rst burner.
WILLIAM H. GREENFIELD.
ll
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