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Патент USA US2404530

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July 23, 1946‘
M. R‘ESEK
_
‘ 2,404,530
~
TELESCOPING FLUE
'2 SheI-etS-Sheet 1
Filed July 14, 1945 -
INVENTOR.
MARC P£$5K .
B
‘Av-mews)’:
July 23, 1946.
M. RESEK
'
2,404,530
TELESCOPING FLUE
Filed July 14, 1945
2 Sheets-Sheet ,2
Had" ,24
INVENT0R,16
_M4ec $555K
~ 2,404,530
I Patented July 23, 1946
UNITED STATES PATENT OFFICE
TELESCOPING vFLUE
Marc Resek, Cleveland Heights, Ohio, assignor to
Perfection Stove Company, Cleveland, 0hio,‘a
' corporation of Ohio
Application July 14, 1943, Serial No. 494,743
12 Claims.
(Cl. 126—280)
1
My present invention is a telescoping ?ue for
use with combustion apparatus, and it was de
veloped vin conjunction with’ the liquid fuel heat
ing apparatus that forms the subject matter of
2
'
~
~
.
scoping ?ue in contracted condition and connect
ed to .a vehicle engine heater, a part of the en—_
glue and adjacent portions of the vehicle struc
ture being shown in dot-and-dash lines;- Fig. ‘2
my copending application Serial .No. 479,038.
The apparatus of said application is intended
is a similar view with the. engine and all but a
fragment of the vehicle hood omitted and with
primarily as a heater for internal combustion en—
the ?ue in extended condition‘; Fig. 3 is a per
spective view of the ?ue cap and the adjacent
gines of automotive vehicles, such as motorized
military equipment, including trucks, tanks and
portion of the upper flue section to which the ‘cap
10 is attached; Fig.4 is a central vertical‘ section
the like.
'
‘
>
Where the heater is installed in the engine
through the ?ue, substantially on the line 4-4 of
compartment of a truck or like vehicle beneath
Fig._l, showing the ?ue contracted and with the
the. hood, it is desirable, for obvious reasons,
upper left hand corner in elevation, thisand the
following figure being on the same scale and one
when the heater is placed in condition for use, to
have the ?ue by which the products of combus 15 considerably enlarged over that of Figs. 1 and 2;
tion are carried o?'extended to a considerable
Fig. 5 is a central vertical section through the
height above the plane of the hood, incidentally
through an opening in the hood; and, when the
heater is not in use, to have the ?ue contracted
?ue, in a plane at right angles to that of Fig. 4,
showing the ?ue extended, parts of the ?ue in
this and in the preceding view being broken out
beneath the hood and, preferably, said opening 20 in order to shorten the,vviews, and Fig. 6 is a
closed by a shutter or other suitable means. The
transverse section through, the joint between the
nature and purpose of the heater requires its use
top and middle sections ‘on a further enlarged
only when the vehicle is standing,v wherefore,
scale, the plane of section being indicated by the
when the vehicle is in operation, the ?ue is con
tracted and entirely out of the way.
The more general objects of the invention are
to provide a telescoping ?ue that is substantial
line 6—6 o-fFig. 5.
e
r
,
a
I
-
The ?ue, as herein illustrated, comprises three
tubes or sections, although it may consist of two,
or of any greater number that is practical.
The
and relatively simple in construction, and that
bottom or base section is designated I, the middle
can be easily and quickly extended and contract
or intermediate section 2, and the top- section 3.
ed; also, to provide a ?ue comprising telescoping 30 The bottom section has a side opening 5 (Fig. 5)
sections that are connected together, when the
near its lower end over which is disposed a shell 6
?ue is extended, by ?rm, interlocking and leak
proof joints and the sections of which, when the
?ue is in any other than fully extended condi
whose edge portion is suitably connected, as by
welding, to the section I about said opening; The
shell has a bottom wall ‘I provided with an open:
tion, loosely inter?t so that each retractable sec 35 ing 8 that is surrounded by a depending collar 9
tion may readily slide within the one next larger
through which the ?ue has communicative C011‘.
in diameter and with su?icient clearance to avoid
nection with the combustion chamber of the
the scraping off of an appreciable amount of soot
heater it). Details of this heater are disclosed in
my application aforesaid.
.
.
that has been deposited on the interior of the
larger section.
40
The bottom portion of the ?ue, below said
Another object of the invention is to provide a
opening 5 of section I, constitutes a soot collect
telescoping ?ue having a soot collecting basin or
ing basin or trap, and the same is provided with
trap at its lower end into which any soot that is
a bottom closure l5 shown in section in Fig; 4
scraped o? during the contraction of the flue will
and in elevation in Fig. 5, the closure desirably
collect and from which it may readily be dis 45 being formed from sheet metal with a peripheral
charged; and a further object is to provide a clo
?ange it that is adapted to seat against the
sure‘for said basin or trap that automatically
bottom of the section I. A cylindrical portion I'l
closes when the ?ue is extended and which like
rises from the inner edge of the ?ange ‘ l6 vand
wise opens each time the ?ue is contracted there
merges into a frusto conical part l8 having a
by to discharge the contents of the basin or trap. 50 closed top. The closure is guided within‘ the
The foregoing objects, with others that will be
tube by the vertical branches [9 of members 20,
apparent from the following detailed description
desirably formed from strap metal and welded or
of the invention, are attained in the construction
otherwise fastened to the closure, and at' their
illustrated in the accompanying drawings. where
tops ‘said members are provided with seats 2'!
vin vFig. 1 is a side elevation of my improved tele- '88 against which the ‘lower ends of the intermedié.
2,404,530
3
ate and top ?ue sections 2 and 3 bear'when the
vflue is in contracted condition, as'will herein
after more fully appear. "When theflue is ex
tended, as shown in Figs. 1 and 5, and the weight
of the ?ue sections 2 and 3 is thus removed
from the seats 2|, the closure I5 is lifted by a
‘spring 23 and is heldby said spring with its
?ange I6 against the bottom of the section I.
This spring bears at its upper end against the
circular top wall of the closure I5 and at its lower
end surrounds a positioning boss 24 of a spring
‘seat 25 that consists of an annulus that is desir-r
present joint includes seats that are formed by
the underneath side of the top ?ange 44 of the
locking ring 40 and the shoulder between the body
portion of section 3 and the enlarged portion 42
thereof. In the present case,’ the ?ange 44 of
the locking ring is flush with the top of the ?ue
section 2, instead of being at a, higher elevation
like the ?ange 3| of the locking ring 30 of the
?rst described joint.
A cap 50 is fastened to the upper end of the top
?ue section 3, as by having a collar 5| thereof
inserted into the upper end of said section and
ably slightly less in diameter than the internal ‘ parts of said section (one of which is designated
52 in Fig. 4) depressed inwardly into apertures
diameterof the lower end of the closure I5. The
lower convolutions of the spring 23 and the 15 53. of said collar. The body portion of the cap
55 is’ frusto conical'in shape and is joined with
spring seat 25 are shown in section in Fig. 4,
1 the collar 5I at its inner edge and at its outer
while in Fig. 5 the same, parts are shown in .ele
vation.' The seat 25 is carried by the central, , edge is surrounded by a horizontal ?ange 55.
The ?ange is cut away or sheared off at one side
portion of a U-shaped bail 26 whose ends are
connected by pivot members 21 to the opposite 20 along a straight line, as shown at 56, and adja
cent one end of vits straight side the ?ange is
sides of the flue section I‘. The bail 26 is adapted
to beheld inpa position with the spring seat?25
,
‘ deformed to provide a detent 51 and a stop 58,
between which is a shallow socket'59. Lugs 50
in vertical alignment with the flue by a set screw
are incorporated in the cap and areshown as ris
28 that is threaded through one of the side
branches of the bail and is arranged to engage 25 ing from diametrically opposite portions of the
?ange 55 to facilitate turning the 'cap for a pur
the side of the ?ue section I. By loosening the
pose hereinafter appearing.
'
,
screw 28, the bail is free to be swung to a position
Arranged to cooperate with the flange 55, when
to one side of the ?ue, as shown in doted lines‘ in
the ?ue is contracted, is the inturned end of a
Fig. 5.
hook 62 whose base portion 63 is welded or other
, Fitted within the top of the ?ue section I, and
wise fastened to the ?ue section I.
-'
fastened thereto, as by welding, is a locking ring
' 30 that is surrounded at its upper end by an in
wardly directed ?ange 31, the underneath surface
of which constitutes‘ a seat I“. The peripheral
‘wall of said ring is provided with a number, de
sirably three, of L-shaped slots 32 having rela
tively widemouths, as indicated in Fig. 5; and
‘the bottom edge 33 of the lateral branch of each
slot is inclined upwardly at a slightrangle to the
' The ?ue is desirably anchored in the region
of the- upper end of its base section I to a part
of the vehicle structure as, for example, the en
gine. In the present‘ case a band 55, that en
circles the ?ue section I, is fastened to a bracket
66 that is secured to and rises from the engine E.
The hood H of the vehicle has an opening h in
vertical alignment with the '?ue', and said opening
horizontal in a direction away from the entrance 49 is adapted to be closed by a shutter h’ when the
?ue is contracted. The parts are illustrated in
end of the slot. Also, the wall 34 of said entrance
this condition in Fig. l. The shutter is shown
‘end, opposite the lateral branch, is inclined up
as connected by a pivot member h2 to the hood,
wardly and at a substantial angle toward said
and is provided with a ?ngerjpiece 723 that pro
branch, for a purpose hereinafter appearing.
jects through the opening it. By means of the
The intermediate ?ue section 2 has a circumfer
ential'porti'on 35 adjacent its lower end that is
jenlarged‘to'?t within thelocking ring 55, a shoul
‘der being thus provided between the body portion
‘of the tube and said circumferential portion that
constitutes a seat 2a for engagement with the
‘previously mentioned seat Ia‘. Projections 31 on
the portion 35 of section 2 are arranged to enter
?nger piece 7113 the shutter'may be swung to one
side'to uncover the opening h; so that" the ?ue
may be extended through said opening, as illus
trated in Fig.
2.
' '
‘
:When it is desired to contract the ?ue, the
section 2 is turned in a‘ direction (counterclock
wise according to the present construction) to re
move projections 51 from the lateral branches of
the slots'32' as said section is extended and, if nec
the L-shaped. slots 32 of the locking ring 35,
essary, turned to register the projections with
the slots... As the projections enter the slots they 55 when the section 2 may belowered into the base
section I, the initial downward movement of sec
engage the walls 34 a'nd‘are de?ected into the
tion 2 withdrawing its enlarged circumferential
lateral “branches, this action initiating the turn
portion'35v from the locking ring. After this ini
ing of‘ section 2 in the proper direction to shift
tial movement, the'section 2 descends freely into
‘the projections 3'! into said lateral branches and
‘cause the projections to ride up the inclined edges 60 section I until its lower end engages the seats
2I of the members 20 that are incorporated in '
‘33.; thereby to urge the aforesaid seats Ia and 2a
the‘c'losure I5. In the meantime, the projections
‘into ?rm contact with each other;
43 of'the top section 3 are disengaged from the ,
The projections 31 desirably consist of the
lateral branches of the slots M of the locking ring
headset rivets, ‘one of which is shown in section
40' so that the top section may be lowered into
in'Fig; 6, the shanks of the rivets being extended
‘through apertures in the portion 35 of section 2
the intermediate or middle section 2,‘the‘ top- sec‘
tion, in turn, taking itsplace upon the seats 2|
and upset onthe inner side thereof.
of the aforesaid members 20. The retractable
."A joint‘ substantially like that above described
sections are then further depressed so as to lower
occurs between‘ the upper end of section 2 and
the lower'end‘of section 3. The locking ring of ' theyclosure I5 in opposition to the spring 23, the
top ?ue section being orientated to a position
‘the present joint-ris‘designated 40, one of the L
wherein the cut away part 56 of the ?ange-55
Ishaped'slots of which is shown at M in Fig. 5,
will pass the end of the hook 62. 'With the ?ange
land; the enlarged circumferential portion 42 of
55 below‘ the plane of said‘ end of the hook, the
the , ?ue section 3' isv equipped with projections,
top‘ section is turned in the direction designated
the one shown in Fig; 5 being designated 43,. The
2,404,530
.15
‘.
.6
inner sections being surrounded in' the vicinity
of said portions, respectively,’ by inwardly'and
by the legendron the?ange 55, clearly shown in ‘
Fig. 3, ‘so as to, cause the hook to override the
'detent 51 and assume a» position in line with the
outwardly extending seats that engage each other
and substantiallyseal the joint between the sec~
tions when said projections occupy locking posi
socket. 59, the parts being arrested in this rela
tion by engagement of the stop 58 with the in
turned end of the hook. When downward pres;
tions within said slots.
.
.
3. A telescoping ?ue comprising atleast two
sure .on the cap 50‘is relaxed, the spring 23 will
lift the retractable?ue sections and hold the cap
sections, one of which ?ts within the other 'With
against the hook,
appreciable clearance when the sections are in
,
'
‘
In the retraction of the ?ue sections‘ 2 and 3, 10 any but fully extended condition, a locking ring
soot will likely be loosened from the inner sur
secured within one end of‘ the outer sectionythe
same being provided with a series of L-shaped
faces of the different sections and fall into the
slots, the outer end of the locking ring having an
soot collecting basin or‘ trap at the bottom of' the
inwardly directed ?ange providing ‘a seat, the
?ue. Now, as the retractable sections are fully
depressed, the closure I5 will be opened and most 15 inner section having a circumferential portion
adjacent its opposite endthat is of increased ex
of the soot will drop by gravity through the open
ternal diameter and of a size to ?t rather closely
ing between the lower ends of the ?ue sections
said locking ring, there being a shoulder between
and the closure l5. Thus, each time the ?ue is
the body portion of said inner section and said
contracted, the basin or trap will be automati
20 circumferential portion providing a seat ar-.
cally emptied.
,
ranged for engagement with the previously men
When it is desired, for any reason, to remove
‘the closure l5, the lower end of the spring 23 is . tioned seat, and projections extending from said
circumferential portion that are arranged to oc
disengaged from the boss 24 of spring seat 25 and
cupy said slots when the ?ue is in extended con
the spring is withdrawn from its position between
said ‘seat and the top of the closure I5. Now, 25 dition, certain walls of said slots that are adapted
to be engaged by said projections being inclined
upon loosening the set screw 28, the bail may be
in a direction to produce relative axial movement
in Fig. 5, and the closure I5 dropped. This ar
between thesections as one section is turned with
rangement also facilitates assembly of the tele—
respect to the-other such as will urge said seats '
scoping sections of the ?ue because, with the bail 30 into ?rm contact with each oher.
4. A telescoping ?ue comprising relatively mov~
and spring seat swung to one side, the ?ue sec
tions 2 and 3 may be inserted through the b0t~
able ?ue sections and incorporating a soot col
lecting basin having a discharge opening, closure
tom of the base section I and, with this done,
means for said opening biased toward closed po
the cap 50 may beattached in the manner already
sition, and a part connected to and movable in
described to the top end of section 3.
unison with said closure means, said part being
Having thus described my invention, What I
engaged and shifted by certain of said sections
claim is:
1. A telescoping ?ue for combustionapparatus
during contraction of the ?ue thereby to move the
closure means to open position.
i
'
having adjacent its lower end means for com—
5. A telescoping ?ue comprising relatively mov
municatively connecting it to such an apparatus 40
able ?ue sections and incorporatinga soot'col
and being open at the top and unobstructed be
lecting basin having a discharge opening, a clo
tween its open top and the aforesaid means, said
sure for said opening,’ means tending to retain
?ue comprising at least two sections, oneof which
the closure in closed position, and a part con
?ts within the other with appreciable clearance
when the sections are in any but fully extended 45 nected to and movable in unison with said clo
sure, said part being engaged and shifted by cer
condition, the outer section having a circumfer
tain of said sections during contraction of the
ential portion adjacent one end- of reduced in
?ue thereby to move the closure to open position
ternal diameter, and the inner section having a
swung to one side, as illustrated in dotted lines
circumferential portion adjacent its opposite end
of increased external diameter and of a size to
fit rather closely said portion of the outer section,
the outer and inner sections being surrounded in
the vicinity of said portions, respectively, by in
wardly and outwardly extending seats, and inter
engaging means on the two sections that cooper
in opposition to said means.
50
.
6. A telescoping ?ue comprising a base section
and one or more retractable sections, the base
section having a side aperture spaced above its
lower end for communicative connection with a
combustion apparatus, the portion of the base
55 section below said aperture enclosing a soot-col
lecting basin, the section being provided With an
ate when the ?ue is extended and said sections
opening through which soot may be discharged, a
are relatively rotated for urging ‘said seats into
closure for said opening, means tending to re
?rm contact with each other, said means consist
tain said closure in closed position, and means
ing of radial projections on one section and parts
on the other section having circumferentially ex 60 engaged by the retractable section or sections
when the ?ue is contracted for shifting said clo~
tending cam surfaces wherewith said projections
sure to open position in opposition to the ?rst
engage.
mentioned means.
2. A telescoping flue comprising at least two
7. A telescoping ?ue comprising a base section
sections, one of which ?ts within the other with 65 and one or more retractable sections, the base
section having a side aperture spaced above its
lower end for communicative connection with a
?tted within one end of the outer section, the
combustion apparatus, the portion of the base
same being provided with a series of L-shaped
section below said aperture enclosing a soot-col
slots, the inner section having a circumferential
lecting basin, the section being provided with an
portion adjacent its opposite end of increased ex-~
opening through which the soot may be vdis
ternal diameter and of a size to ?t rather closely
charged, a closure for said opening, means tend
said locking ring, projections on said portion that
ing to retain said closure in closed position, fur
are arranged to occupy the aforesaid slots when
ther means engaged by the retractable section or
sections when the. ?ue is contracted for shifting
the ?ue is in extended condition, the outer and
appreciable clearance when the sections are in
any but fully extended condition, a locking ring
2,404,530
1.7.
said closure to: open position in opposition to the
?rst mentioned means, and a releasable instru-j
mentality for holding the retractable 58813101101“
a» spring? having its lower endlengaged with said
positioning means and resting upon said seat and
sections in retracted position.
compressed between the ' same and the closure.
i
-_
m'eans‘carried by thecentral portion of said bail,
' 8. A telescoping ?ue comprising a base section
and a retractable portion, the base section being
openat its lower end and having an aperture in
its' side spaced above said lower end andthrough
which the ?ue is adapted to have communica
and parts on the closure arranged to be engaged
by the lower ends of the retractable sections when
the ?ue is in retracted condition for depressing
the closure in opposition to said spring and thus
tive connection with a combustion apparatus, a, 10
11. A telescoping ?ue comprising a base sec
tion that is open at the bottom, and a plurality
of nesting retractable ‘sections that are adapted to
be'contracted into the base section, the base sec
tion having an opening in'its side spaced above
its lower end through which the ?ue- is adapted
to be communicatively connected with ‘a combus
tion apparatus, the ?ue enclosing a soot-collect
ing basin below the plane of said opening, .a clo
sure for the bottom of, the base‘section, a. spring
tending to retain the same in closed position, the
closure having a part engaged by the lower ends
of the retractable sections when the ?ue is in
contracted condition for opening said closure in
closure for .the lower end of the base section, a
springv tending to retain the same in closed posi
tion, the closure including a part arranged to be
engaged by the lower part of the retractable por
tion whereby to shift the closure to open posi~
tion against the tension of said. spring-when the‘
?ueis contracted, means carried by the top of the
base-section'that is arranged for holding engage
ment with the top of a retractable portion fer
holding the latter in retracted position.
9. A ?ue comprising a base section open at its,
lower end, and a plurality of nesting retractable‘
sections that telescope into the base section, the
base section having an aperture in its side that
is spaced a distance above its lower end whereby
the portionof said base section below the plane
of said aperture providesa soot-collecting basin,
opening the soot-collecting basin.
‘opposition to said spring, a cap fastened to the /
top of the inner retractable section provided with
an outwardly extending ?ange that overhangs
the other sections, a hook rising from one side of
the base section and positioned for engagement
with the top of said ?ange thereby to retain the
ing parts of the base section thereby to retain 30 retractable sections in retracted position, the
the closure in operative relation to the base sec
?ange being cut away atone side to permit the
tion, a substantially U-shaped bail pivoted at its
?ange to pass said hook,‘ and diametrically op
ends to diametrically opposite-parts of ‘the basev
posed lugs on the cap tofacilitate turning the
a closure arranged to engage the lower end of the
base section, guide means thereon slidably engag
section near the bottom thereof so that the cen
same so as to shift said cut-away portion of the
tral portion of said bail may occupy a position 35 cap out of register with said hook.
' below the bottom of the base section, a spring
12. A telescoping ?ue comprising a base sec
compressed between the, central portion of said
tion that is open at the bottom, and a plurality
> bail and the closure, and parts on the closure ar
of nesting retractable sections that are, adapted
ranged to be engaged by the lower ends of. the
retractable sections, when'the ?ue is in retracted
condition, for depressing the closure in opposition
to said spring and thus opening the soot-collect- ‘
ing basin.
'
10. A ?ue comprising a base section that is '
open at its lower end andv a plurality of nesting
retractable sections that telescope into the base
section, the base section having an aperture in
its side that is so spaced above its lower end that
the portion of said base section below the plane '
of said aperture provides a soot-collecting basin,
an inverted dished closure having a peripheral
?ange arranged to engage the lower end of the
base section, guide means rising from the closure
and slidably ?tting within the lower end of the
base section to retain the closure in operative
} relation to the base section, a substantially U
shaped bail pivoted at its ends to diametrically
‘,_ opposite parts of the base section near the bottom
thereof so that the central portion of said bail may
occupy aposition below. the bottom of the base sec
, tion, means for releasably holding the bail in said
position, a spring seat with spring positioning
to be contracted into ‘the base section, the base
section having an opening in its side spaced above
its'lower end through which the ?ue isadapted
to be .communicatively connected with a combus
tion apparatus, the ?ue enclosing a soot-collect
ing basin below the plane of said opening, a clo
sure for the bottom of the basesection, a spring
tending to retain the same in closed position, the
closure having a part engagedby the lower ends
of- the retractable sections when the ?ue is in con
tracted condition'for opening said closure in op
position to said spring, a cap-fastened to the top
of the inner retractable, section provided with an
outwardly extending ?ange that overhangs, the
other sections, a hook rising from oneside of the
base section and positioned, for engagement with
the top of said ?ange thereby to retain the re
tractable sections in retracted position, the flange
being cut away at one side to permit the ?ange
to pass said hook, a socket formed in said ?ange
for the reception of said hook, a‘ detent on one
side of the socket, and a stop on the other side
thereo?
,
-
MARC RESEK.
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