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Патент USA US2403941

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qgu?y W9 194*»
J. T. MacLAREN
CHUTE STRUCTURE FOR INCINERATORS
Filed July 11, 1944
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T MCLHE’EN
BY
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July 16, W46.
J. T. MaCLAREN
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CHUTE STRUCTURE FOR INCINERATORS
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Filed July 11, 1944
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IN VENTOK ,
JAMES T H‘ICLHEEN ‘
BX
Patented July 16, 1946
,_
2,403,941
,
‘UNITED,’ STATE s
PATENT OFFICE
2,403,941
CHUTE STRUCTURE FOR INCINERATORS
James Todd MacLaren, Los Angeles,‘ Calif.
Application July 11, 1944, Serial No. 544,353
2 Claims. (Cl. 193-—34)
.
v
1
.
My invention’ relates to incinerators which are
used for burning up trash of all sorts of burnable
materials, including household garbage, and the
2
my door in place and closed before the top cap
is mounted on the incinerator base.
Figure 3 is a sectional end View through the
door opening showing my door in a closed position
and wherein dotted lines indicate the open posi
tion of my door.
Figure 4 is a view from the inside of the door
way with my door closed looking in the direction
chief use of the incinerator in which my inven
tion is employed is for household purposes, being
relatively of small sizes of such incinerators.
The bodies of these small incinerators in gen
eral use are made of concrete of compositions
of arrow 4 of Figure 3.
which will withstand the heat which is developed
Figure 5 is a top plan sectional view of my door
by the combustion of the contents of the in 10
on line 5-5 of Figure 3.
cinerator, which contents are burned for disposal.
Figure 6 is a sectional detail on an enlarged
It ‘is highly desirable and is really necessary
scale showing the hinge structure of my door.
that the doors which are opened for admission of
Figure 7 is a perspective view of the body parts
material which is to be burned have a closure ?t
which form the walls of my door associated to
over the entrance opening which will be normally
each other approximately as might appear by
close on all sides to prevent the escape of flames
looking at these parts from the inside of the in
or gases from the inside outward alongside of the
cinerator for an understanding of the connections
entrance door or gate. _
'
’
of the parts to themselves.
‘ Further, the trash and the garbage which is
Figure 8 is a perspective view of the metal bar
introduced into the incinerator, and particularly 20
which is mounted across the top of the doorway
the garbage,’ is'discharged usually from buckets,
of the incinerator.
pans and cans and frequently the doors are so
Figure 9 is a perspective view of a metal bar
constructed and mounted on the incinerator that
which forms the threshold of the door opening
the materials while being emptied into the door
way of the incinerator will spill on around the 25 and is constructed in form to become a part of
the hinge structure for my door.
doorway and will have to be gathered up for
The body of the incinerator may be made in
entrance to the incinerator.
'
any suitable manner and of any suitable material
An vobject of the invention is to provide an
as indicated by B and may be provided with any
incinerator‘ ‘entrance door which will act as a
hopper when opened for the admission of what 30 suitable ash removing door A.
At the top of the body B there is a door open
is to be burned in the incinerator.
ing, the top of which opening is spanned by the
A further object of the invention is to provide
metal bar 2 which is secured into the body of the
such a hopper construction that it will close
material out of which the incinerator is made. .
tightly around the door space consistent with the
This bar 2 may be held in place in any suitable
normal cost of production of such parts.
manner. It may be held in place by the cap C of
A further object of the invention is to provide
the incinerator when the cap is applied in the
a door for the purpose described and which may
body B. It may also be held in place by the studs
be assembled in place on the incinerator without
4 which pass through holes 3 of the metal bar 2.
the use of ‘bolts, screws, etc., and when the top
The bottom of the door opening is covered by
of the incinerator is mounted on its base, the door 40
the threshold bar 5 secured to the material of the
of my incinerator may not be removed as relates
body of the incinerator by stud bolts 6 which pass
to any essential part of my door.
through openings 1 in the lower ?ange of the
A further object of the invention is to provide
threshold bar 5. The upper edge of the thresh
a’ construction of my door formed by ?at pieces
old bar 5 is provided with the ?ange 8 which
which can be interlocked together and mounted
forms a part of the hinge means of my door.
in the incinerator and after the cover is mounted
The front or the outside face plate of my door
over the doorway, my door may not be removed
is indicated as 9, see Figure '7, in which ?gure you
because it will be interlocked together as relates
are looking from the inside of the door. This face
to the pieces of the door and also into the door
or front plate 9 is provided with side walls I0 and
way.
in Figure 7 you are looking at the inside of these
Reference will be had to the accompanying
side walls Hi, The face plate 9 is provided with
drawings in which:
little slots H on its edges and the side walls [0
Figure 1 is a perspective view of a complete
are provided with hook-shaped lugs [2 which are
incinerator with my hopper door open.
Figure 2 is perspective elevational view with
adapted to be entered into the notches II and
2,403,941
3
then slid downward which then will lock the two
parts together in the position, which they assume
when mounted in the doorway.
The lower end of the plate 9 terminates in the
straight edge 13, Projecting outwardly from the
inside of the plate 9 above the bottom edge [3
there is a curved ?ange M which when my door
parts are assembled and are placed into position
in the incinerator, the straight edge l3 rests on
a shoulder 55 of the bar '5, which then acts like
a hinge pin connection as and when the straight
edge l3 contacts the shoulder l5 and is held in
place by the curved ?ange l4 riding over the
?ange 8 of the threshold bar 5.
In the assembly of the parts of the incinerator
after the walls of the body B have been assembled
in place and before the metal bar 2 is mounted
over the doorway in the body B, my front or face
plate 9 and the side walls ill are locked'together
4
said bar having a vertical ?ange across the open
ing of the door, an outward extending offset on
said upward flange, a door plate covering the
entire door opening and resting on the said on‘
set of the said threshold and the top of the said
door plate overlapping the bottom of the said
?ange on the top of the door, an inwardly and
downwardly extending ?ange on the inside and at
the bottom portion of the said door plate over
riding the said vertical ?ange on the said thresh
old which overriding ?ange together with the bot
tom portion of the said door plate rests on the
said offset of the said threshold to form the hinge
for the door: in combination with side plates
attached to the side portions of the said door plate
and approximating a triangular shape and With
their apex ends located at the bottom of the said
door plate and extending upwardly therefrom at
an approximate angle of forty ?ve degrees and
and then are mounted in the doorway as a single 20 the upper inner corner of said plates extending
unit supported on the threshold bar 5, which has
to a distance above the lower edge of the down
already been mounted-in the doorway.
ward ?ange of the said cross bar in a narrow pro
The side walls H3 are provided with their top
jection that when the face plate is rocked about
.edges it which are curved to conform to a radius
its hinged center to an open angle of approxi
over the straight edge #3 of the face or front
mately forty'?ve degrees, the said projection on
plate 9. On the inside upper corner of the side
the inside corner of the said side plate will con
walls l E! there is an outward projection l l, which
tact the inside of the downward ?ange of the bar
is adapted to be engaged by the inner side of the
across the top of the opening, the top edges of
lower flange 5 8 of the bar 2% and when the said
the triangularly shaped pieces'liaving those edges
bar-is mounted in place over the top of the door- .
way.
This projection ll’ contacting behind the ?ange
on a radii line around the hinge center at the
bottom of the front plate whereby when the parts
are assembled the door plate and its side plates
H) of the bar '2 holds my door open, thus forming
will be retained in place, the bottom of the door
a hopper H when the door is open, see Figure 1.
hinging over the threshold ?ange and the top
After this assembly is so far made, the top cap .,
of the door retained in place by the curved top
member C of the incinerator is then mounted on
of the side plates contacting the bottom of the
the incinerator which completes the assembly of
?ange on the cross bar at the top.
an incinerator provided with my door hopper con
2. In a door of the class described, a front face
struction. A hand hold knob I9 is provided for
plate forming the coverage of a door opening, the
‘opening and for closing the door.
40
bottom edge of the ‘said front face plate having
After my door has been assembled in the in
a straight edge, a projection from one side of the
cinerator as shown and described herein and the
bottom portion of the said front face plate and
top cap of the incinerator put on in place, my
extending inwardly and downwardly, thereby
door may not be removed from its location in _ forming as it were a groove shaped space across
the incinerator and it will operate successfully in .1.
the bottom of the said front face plate, a thresh
being opened and closed in the absence of any
old bar across the bottom of the door opening, a
hinge means of the common hinge character.
vertically extending .?ange extending upwardly
The door will hold itself in place as a hopper
from the said threshold bar and adapted to enter
when opened in the absence of any other means
into the said groove on the bottom of the said
outside of the projections ll contacting the in
front face plate forming therewith a hinge con
sideof the flange l8- of the bar ‘2.
nection between the said front face plate and the
When my door is in closed position the inside
said threshold bar, triangularly shaped side
top corners of the side walls lil overhang the front
plate 9 and weight by gravity holds the door shut
at all times when closed. Thereby no springs or‘
latches are needed for holding my door shut.
“The construction and the arrangement of the
parts of my door are of low cost and are highly
serviceable and strong and are especially so
wherein an incinerator door is subject to con
stant heating and cooling, as does take place in
this class-of an incinerator. ‘
What I claim is:
'
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1. In an incinerator of the class described hav
ing. a rectangular door opening, the top of this
opening being spanned by a cross bar, said bar
having an inwardly and downwardly extending
?ange across the top of the door, the said opening
spanned by a threshold bar at the bottom thereof,
plates detachably fixed to the interior sides of
the said front face plate thereby forming a chute
for directing materials to the interior of the in
cinerator, the said triangular plates having
hooked shaped projections on their edges contact
ing the sides of the said front face plate, aper
tures in the sides of the said front face plate into
which apertures the said hooked shaped projec
tions are locked and thereby held to the said
front face plate, upwardly extending projections
on the top inner corners of the said triangularly
shaped side plates whereby said projections con
tact the inner side of the top cross bar of the
door opening.
JAMES TODD MACLAREN.
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