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Патент USA US3061714

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Oct. 30, 1962
Filed Dec. 8, 1960
5 Sheets-Sheet 1
Oct. 30, 1962
Filed Dec. 8, 1960
5 Sheets-Sheet 2
Od- 30, 1962
Filed Dec. 8, 1960
3 Sheets-Sheet 5
7 W
‘ 5‘ atent
Patented Oct. 30, 1962
aforesaid, the car may be moved to a nearby location for
dumping while another car is being thawed. It may at
times be desirable to melt snow and ice from otherwise
empty cars, such as, prior to loading.
With reference to FIGURES 2 and 4, housing 10 com
prises an elongated, sheet-metal box open at the bottom
and having outwardly turned, lower side margins 17. A
plate 18 spans the outwardly turned margins 17 with a
Ira .1’. Barber, Fostoria, ()hio, assignor to Radcor, Ine.,
Bradner, Ohio
Filed Dec. 8, 1960, Ser. No. 74,582
9 Ciaims. (Cl. 219—19)
The present invention relates to electric heating appara
gasket 19 (FIGURE 4) being interposed between the
tus, more particularly radiant heating apparatus for de—
icing railroad cars and the like, and the principal object
latter and the plate for sealing purposes. Suitable screws
2%} or the like may be employed to draw the plate 18
of the invention is to provide new and improved appara~
tus of the character described.
The transpotration of bulk commodities such as coal
and the like in open railroad cars during freezing weather -
presents serious unloading di?iculties. These difficulties
arise by reason of the fact that rain and/or snow co
mingles with the commodity being hauled and then
freezes to impede subsequent discharge of the commodity
tightly against the margins 17 to insure the exclusion of
water and the like from the housing interior.
Carried by and projecting through one of theside walls
of the housing 10 are a plurality of well-known, tubular
metallic sheathed electric resistance heating elements 21
of hair pin con?guration which constitute the heating ele—
ment means 14.
Each element has a pair of spaced
apart, generally parallel legs 22 connected at one end
by an integral bight portion 23. The opposite ends of the
from the car.
It has been proposed to direct radiant heat to the lower
portion of the frozen car to melt the accumulated ice so
that the car may be dumped in the usual manner by
legs ‘of each element extend through the housing wall to
position their terminal ends within the housing. Project
either tilting the car bodily or by opening discharge open~
minal pin 24 to which electrical connections are made for
ing from each element leg terminal end is the usual ter
ings in the sides and/ or bottom thereof. While many in~
the purpose of supplying each element with electrical
stallations have employed electric resistance heating ap
paratus for generating the radiant heat aforesaid, such
apparatus has not been entirely satisfactory since most of
the apparatus was not speci?cally designed for thawing
Each element leg 22 is secured to the housing wall to
provide a water-tight juncture therebetween and while
frozen railroad cars but was adapted from apparatus "
originally designed for other purposes. The present in
vention, ibeing speci?cally designed for thawing frozen
railroad cars and the like, possesses advantages over ap
paratus heretofore employed in that it is highly e?icien-t
for its intended purpose, it is unaffected by water, its
heating elements are adequately protected against both
physical damage and premature burn outs, and the de
vice may easily be cleaned when necessary. Other ad
vantages will readily become apparent from a study of
any convenient expedient can ‘be employed for this pur
pose, such as, for example, welding or the like, it is pref
erable to removably attach each element to the housing in
the manner illustrated in FIGURE 4. As therein seen,
each element leg has a ?anged sleeve 25 welded, soldered
or otherwise a?ixed thereto. The exterior of the sleeve
is threaded to receive a nut 26 for drawing the sleeve
flange tightly against the housing wall. Although not
shown, a ‘suitable gasket may be disposed between the
sleeve ?ange and the housing wall to insure a water
tight seal therebetween.
the following drawings and from the description ap 40
As illustrated in FIGURE 2 and for a purpose to ap—
pended hereto.
In the drawings accompanying this speci?cation and
forming a part of this application there is shown, for
purpose of illustration, an embodiment which the inven
tion may assume, and in these drawings:
FIGURE 1 is an oblique view illustrating a preferred
pear, the elements 21 are arranged in side-by-side, hori
zontally extending relation with the spacing A between
the legs 22 of respective elements substantially identical
to the spacing B between the legs of adjoining elements.
A space no smaller than A and B or possibly even slightly
greater will be provided between the bight ends of the ele
ments carried by housing 10 and those of housing 11.
Since housing 11 and its associated parts is identical to
view of the invention seen in FIGURE 1,
housing 10 and its parts, it is believed that the above
FEGURE 3 is a view similar to FIGURE 2 but taken
description of the latter will su?ice for an understanding
from another angle to show a side not seen in the ?gure
of the former.
last mentioned, and
In applications of the present type, it is not unusual for
FIGURE 4 is an enlarged sectional view generally cor
pieces of the load being carried to drop from the car upon
responding to the line 4—4 of FIGURE 3.
the underlying heating elements. This can result because
Briefly, and as viewed in FIGURE 1, the present in
the doors of hopper cars seldom seal tightly. If such
vention comprises a pair ‘of spaced, elongated housings
pieces are small enough to pass between the element legs,
1d and 11 disposed between the usual railroad tracks 12
no problem is presented, even if such pieces strike the
and 13. As will later more fully appear, each housing
highly shock resistant elements, since such pieces will
carries heating element means 14, 14 which project from 60 merely collect beneath the latter. In the event the pieces
a respective housing in a direction toward the other
are combustible, they will burn harmlessly, thus assisting
housing. Underlying the heating means 14 is re?ector
the car thawing operation. In the event, however, that
means 15 which directs radiant heat upwardly, and over
pieces too large to pass between the element legs should
lying the heating means 14 for a purpose to appear is a
drop thereon, a serious problem is presented since with
embodiment of the present invention,
FIGURE 2 is an enlarged, fragmentary perspective
screen 16.
In operation, a railroad car to be thawed will be
driven over the assembly seen in FIGURE 1 whereupon
the upwardly directed radiant'heat emanating from the
65 a piece resting upon an element, air ?ow over the ele
ment at the point of contact with the piece is cut off and
thus this portion of the element tends to become over
heated. Such overheating leads to element failure as
energized heating element means 14 will soon melt the
will be understood.
accumulated ice in the car bottom and thus permit its 70 To prevent the lodging of pieces upon the heating ele—_
contents to be dumped with the same facility as is pos
ment,‘the wire mesh 16 aforesaid is employed. Such
sible during non-freezing weather. Following the melting
mesh may be formed of any suitable, heat-resistant ma
terial and will rest upon the upper surfaces of housings
10 and 11 whereby a vertical space is provided between
a tie 32. it will be appreciated that two and possibly
more strap members as will be disposed on the rod 34.
the mesh and the underlying element. Although not
shown, any suitable means may be employed to re
It will be understood that since the strap members are
movably retain the mesh properly positioned upon the
housing. By way of example, the margins of the mesh
slidable along the rod, they can be variously positioned
therealong for registry with a respective tie. Assuming
the strap members to be lagged to the ties, the housing
could be turned downwardly to embrace respective hous
ings or the mesh could be held in place by clips or by
10 may be pivoted about the axis of rod 34 from the full
line position seen in FIGURE 4 to the phantom line
position. This movement of the housing will swing the
*In any event, it is to be understood that the mesh open 10 attached heating elements 14 away from the attached re
?ector member 27, such movement also elevating the
ings have dimensions C and D which are no larger than
adjoining portion of the reflector member and drawing
the previously mentioned element leg spaces A and B
the latter away from the housing 11 whereby the re?ector
and possibly slightly smaller. Accordingly, any piece
member may readily be removed for cleaning. Since
large enough to pass through the mesh will be small
housing 11 is shiftable in the same manner as housing
enough to pass between the element legs. The larger
it), its re?ector member may also be readily removed thus
pieces will lodge upon the mesh where they will harm
exposing for cleaning the area between the two housings.
lessly burn away, assuming, of course, that such pieces
In view of the foregoing it will be apparent to those
are combustible. ‘It may be bene?cial in this connection
skilled in the art that 'I have accomplished at least the
to use a heating element other than round, such as heart
principal object ‘of my invention and it will also be appar
shaped or triangular, with the narrow or sharp side up,
cut to those skilled in the art that the embodiment herein
eliminating any appreciable surface for materials to
described may be variously changed and modi?ed, with
out departing from the spirit of the invention, and that
For maximum heating e?iciency, the previously men
the invention is capable of uses and has advantages not
tioned re?ector means underlies the heating elements to
herein speci?cally described; hence it will be appreciated
upwardly direct the heat radiated from the elements. As
that the herein disclosed embodiment is illustrative only,
herein disclosed, such re?ector means comprises a pair of
and that my invention is not limited thereto.
polished, re?ective sheet metal members 27 providing
I claim:
plane surfaces inclined downwardly from respective hous
1. Apparatus for deicing railroad cars and the like com
ings. With the members 27 thus inclined, water and
prising a pair of housings secured to a support in spaced
debris gravitating from the thawing car overhead will
apart relation, a pair of electric resistance heating ele
rapidly run off the members.
ments each carried by a respective one of said housings for
Still referring to FIGURES 2 and 4-, the following con
projection toward the other, and means providing axes
struction is employed to support re?ector members 2-7, it
being understood that a description of only housing ll)
about which said housings are respectively shit'table to
with its re?ector member will suf?ce since housing 11 35 move the elements carried thereby in arcuate paths away
from the support.
and its re?ector are similar: Secured by welding or the
2. Apparatus for deicing railroad cars and the like com
like to the wall of housing 16) beneath the heating ele
ments 21 is one leg of a V~shaped bracket ‘2% which ex
tends from end to end of the housing. The other bracket
leg extends upwardly and outwardly of the wall so that
the bracket provides a longitudinally extending pocket
for a purpose to appear. The sides of re?ector member
2'7 are bent over at right angles to form at each side a
prising a pair of housings in spaced~apart relation, a pair
of electric resistance heating elements each carriedby a
respective one of said housings for projection toward the
other, re?ector means underlying said elements for up
wardly directing radiant energy emanating from the lat
ter, and means providing axes about which said housings
strengthening ?ange 29 and the upper end of the member
are respectively shiftable to move the elements carried
is bent over to provide a ?ange 30 which rests in the
pocket provided by the bracket 28. At least the inter
mediate portion of the lower end of the member 27 is
thereby in arcuate paths away from said re?ector means
to provide for cleaning of the latter.
3. Apparatus for deicing railroad cars and the like com
bent over to provide a ?ange 31 which rests upon and
is supported by one or more of the ties 32 which underlie
prising an elongated housing disposed between and extend
ing longitudinally of the spaced tracks upon which the
the tracks 12. An important feature of the present in
vention is that the ?anges 30 of respective re?ector mem
cars travel, electric resistance heater means carried by
bers 27 are so arranged that they are spaced from each
other to provide a gap 33 therebetween (see FIGURE
said housing and projecting both transversely and gener
ally horizontally thereof, and re?ector means underlying
said heater means for re?ecting radiant energy emanating
1'), through which may pass the water and debris afore
While a completely workable structure would be pro
having one margin supported by said housing and being
vided by bolting the housings 10, 11 directly to the ties
3'2 by means of bolts or screws which would pass through
the outwardly turned housing margins 17, such an ar
rangement would make cleaning of the re?ector membersv
and the space between the tracks somewhat dithcult and
time-consuming. For this reason, it is preferable to
hingedly secure the housings in position between the rails.
As viewed in FIGURES 3 and 4, a rod 34 extends longi
tudinally of the housing 10 in spaced relation above the
outermost housing margin 17. This rod has downward
ly and outwardly turned end portions whose terminal
from the latter to the overlying car, said re?ector means
inclined to insure that water formed by melting ice and
any of the car’s contents which gravitate to said re?ector
means will not lodge thereon toimpair re?ective efficiency
4. The construction of claim 3 wherein said housing
has a bracket disposed beneath said heater means and
wherein said re?ector means one margin is formed for
removable interengagement with such bracket.
5. Apparatus for deicing railroad cars and the like com
: prising a pair of elongated housings in spaced, side-by
side relation between the tracks upon which the cars,
travel, said housings extending longitudinally of such
ends are ?attened to provide apertured feet 35 through
which may pass respective screws 20 for the purpose of
tracks and each being disposed adjacent a respective one
of the latter, electric resistance heating means carried by
securing the rod to the housing. A similar construction
may be provided for housing 11.
A strap member 36 has a tubular portion 37 slidably
embracing the rod 34 and an offset foot portion 38 which
toward the other, and a pair of re?ector members under
lying said heater means for re?ecting radiant energy em
anating from the latter to the overlying car, each of said
is apertured at 39 to pass a lag screw or the like by means
respective housings and projecting transversely of each
re?ector members having one margin thereof supported
of which the strap member may be rigidly secured to 75 by a respective housing in elevated relation to opposed
margins thereof for inclination of said re?ector members
to insure that water formed by melting ice and any of
9. Apparatus for deicing railroad cars and the like
comprising heater means formed of a plurality of metallic
the car’s contents which gravitate to said re?ector mem
sheathed, electric resistance heating element legs extend
bers will not lodge thereon to impair re?ective e?iciency
ing in spaced-apart, side-by-side generally horizontal re
5 lation beneath the car, a perforated member overlying said
6. The construction of claim 5 wherein said heating
means comprises separate electric resistance heating ele
ments carried by respective housings and wherein each
element legs to prevent the car contents or other falling
bodies from lodging thereon and arresting air circulation
thereover to ultimate heater damage, the perforations in
housing is mounted for pivotal movement about an axis
said perforated member being small enough to prevent
extending generally parallel to the tracks to displace said 10 passage therethrough of bodies large enough to lodge
elements from their normal generally horizontal positions
upon said element legs and said perforations being large
overlying said re?ectors to provide access to the latter and
enough to permit passage therethrough of bodies small
to the space between the tracks intermediate said hous
7. The construction of claim 5 wherein said other re
?ector members’ margins are disposed in spaced relation
to provide for passage therebetween of Water and other
material which gravitates onto said members.
enough to readily pass between said element legs, and re
?ector underlying said element legs for re?ecting radiant
15 energy emanating from the latter to the overlying car,
said re?ector being inclined so that water formed by melt
ing ice and any of the car’s contents which fall thereon
will gravitate to the lowermost re?ector portion and such
8. Apparatus for deicing railroad cars and the like com
portion providing a passage through which the water and
prising a pair of elongated housings in spaced, side-by 20 contents aforesaid may gravitate from said re?ector.
side relation between the tracks upon which the cars
travel, said housings extending longitudinally of such
References Cited in the ?le of this patent
tracks and each being disposed adjacent a respective one
of the latter, a plurality of electric resistance heating ele
ments carried by longitudinally spaced portions of respec 25
tive housings, the elements of one housing normally ex
tending transversely thereof toward the other housing and
the elements of the latter normally extending transversely
thereof toward said one housing, and means providing
respective pivots whose aXes extend generally parallel to 30
the tracks and about which respective housings are shift
able to displace their elements from their normal posi
tions and thus provide access to the space between the
tracks intermediate said housings.
Teiger _______________ __ June 11,
Schmall ______________ __ Dec. 2,
Senior ______________ __ Mar. 10,
Thomson ____________ __ Dec. 15,
Ammerman __________ __ Mar. 29,
France ______________ __ Oct. 27, 1930
Germany ____________ .__ Apr. 12, 1954
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