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Патент USA US2410980

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Nov. 12, 1946..
2 SheétS-Sheet 1
Filed June 8, 1945
4 TOR.
Qua-AV K 1.5»!
23,-, 74%
Nov. "12, 1946.
Filed June 8, 1945"
2 Sheets-Sheet 2
2,416,980 _
Patented Nov. 12,1946
oFFIcEi ‘_
Gustav ‘Klein; Melrose Park; -Pa., .. assignor:
Caloric Gas-v Stove. Works;- Philadelphia,‘ Pa.--..
Application June 8,1945, Serial No. 598,221"
2‘1Claims. (Cl. 126-191)
My- invention relates to ' a‘ cooking ;' stove and
lating ' rnechanisrnslocatedv at‘ ‘the ‘opposite sides
of‘the door‘: Eachof ’ these mechanisms'com-i
prises " a .levery22‘; which, at fits-outer‘- end: is: se
has iorlan object to produce improved means for
mounting- the oven door~of ‘such stove.‘
curedto'or carries an angle 24'.(see Fig."9)'which;.
A further object is to produce improved oven 5 in. turn, ,is spot;we1ded“orotherwisesecured'to.
door mounting means which willbalance‘the door
the I door at ' 26. The. lever '22 ."also ' includes ,‘ an'
in any position to which it is' opened, after the
angular. portion 28lwhich terminates: in“ a; hook door-has been opened to a predetermined extent,
38;‘ adapted; when the ‘door. is ‘fully opened‘; .ltO'
but ‘which will close the door-gently if the ‘door
engage a.st0p_'32 to limit movementof‘the door?
is not' opened beyond'said predetermined extent; 10 in opening directionib‘eyond'the position shown
which will exert uniform closing pressure against
' in Fig.8‘.
thedoor when the latter'is closed, so as‘to avoid
A bent link ‘34’ has one end-.there'of‘pivoted ‘to’
heat'loss- due to non-uniform abutment of the
theleVer-ZZ‘, as atS?I The other end of the bent‘
door against the frame de?ning the oven door‘.
link' 344s pivoted" at 38 to the upper end‘ of‘a
opening; which will not‘be subjected. to intense 15 linker~ hanger 40. ‘ The bent'link 34‘ isr‘soar
heat and, hence, will. not deterioratewhile in use;
ranged'jthat, when the .door is ‘opened to,. and‘
which is readily accessible-tor replacement-when
necessary, and which willlbeinexpensive to man
beyond,‘ the positionshown inFig. 4;.the bent‘
linkis engagedjb'y a lug‘42’carriedjbythe lever.
22.."so thatlthelever'22‘fand, the b'entlink 34*wil1'
These and ‘other objects are‘ e?ected by my in-' 20 movajointlygfromthe ppositionfshown in‘ Fig.7 4‘
ventionas will be. apparent vfrom thefollowingt
to thatl-sh'own in.F.‘i“g..8‘.; Thigjmovement of the
description and the accompanying drawings.form-.
bent linkjpulls upwardly -on the hanger“! when
ing a part of this application and‘ in which:‘or.- is_movecL in opening direction andlvice'
Fig.‘ 1' isla fragmentary, front elevational view.
ufacture and " install.
of‘ a cooking stove provided with’. oven door
The . upwardlmovement of; the hangers All“ on .
mounting means embodying my invention;
theopposité sides of‘the oven. door is resisted.‘
Fig, 2‘ isa similar side elevational view ofv the.
by, ahorizontally-sdisposed ‘spring .44 which] is lo
stove shown in Fig. 1;
cated .‘ below the. front I of . the.,broiler compart-.
Fig. 3 is a fragmentary, .front elevational view
ment; In. this. position,.the.springr is not’ sub-.
showing .the- oven .door slightly opened;
30 jec-ted?toany heat .sinceit ,is surrounded bythe.
Fig. 4 is a side elevational-view of Fig. 3;
ambient air of the room. Also, in thislposition,
Fig. 5 is a view, similar to Fig- ‘3, showing the
the : Spring. is» readily-y accessible ‘without having» to
oven- door opened somewhat ‘more than it is {in
move .the_..stove andin so. doing disconnectthe.
Fig. 3;
gaspipes, ,etc.
Fig. 6 isv a side elevational view of Fig. 4;
Fig. 7 is a view similar to Fig, 3, showing the‘ 35 > Thelspring Misconnected atits oppositegendse.
4~'|.to the. arms W of the threearmed-leverstfi;
These threenarmed levers are provided with up:
Fig. '8 is a‘side- elevational view oftFig. ,7; and‘v
wardlypextending. arms- 50: which are pivoted,
Fig. 9 is an enlarged, fragmentary section on’
about horizontal apivot pins 52 carriedibybracka.
line >IX-IX of Fig. ,2;
part ofY the'rhousingrr
5Q securedto 1or- formingv
Referringto Fig; 1 of the. drawihgsjxlihdesig+
nate's: the; supporting : frameworkior "housing; of a;
provided ‘with. arms :56- which-are pivoted tOhthB.
cooking stove; .suchzas anzordinarygas or elec
lowerqen-ds of thevhangersA?; seat 58;: It will‘
tric: range: The: framework'zmayrbe -4 oftanyzde- ‘
be; noted that the three ~-arn'~ied- f'levers 1 48£are1 so
sired; construction; and :certain walls: thereof rare;
constructed 5 that the» arms eiiithereof ‘ are~longer
insulated; as ‘at l2; (See :Fig; 9:) The'framef
workixl B ‘:de?‘nes a rlower: broiler compartment?! 41
than=the arms Art-and 50 and that‘ the, pivots» 58-1
ofithe' arms‘ 56 ‘are remote'rrom the. pivotzpoints.
and' art upper 'ovenqcompartmentx l6‘; therfront?
access openings of which'are; closed: by. doorsJIB;
5U; " thereby imparting afcertain‘ amount ‘of "me
andiZ?‘Qrespectively. While the invention is ap 50 ch nical" advantage. Also‘, " it will 1 be ‘further
plicable to either of ‘these doors, or to any hori
zontally hinged door, it will hereinafter be de
scribed in its application to an oven compart
ment door hinged at 2| to the framework of the
The door mounting includes a pair of articu
noted’ that'thethree armed levers were so ar
ranged that, when the door is closed as in Fig.
- 1, the points at which the ends of the spring are
connected to the arms 46 are in substantial ver
55 tical alignmentiewith the pivot points 52.
When the oven door is closed, as in Figs. 1 and
2, the spring 44 is almost, but not quite, fully
contracted, the pivot points 58 of the hangers
40 are in their lowest positions, and the ends 41
of the spring are substantially directly below the
pivot points 52 of the three armed levers 48, as
indicated by the line A. In this position, the
spring exerts a uniform closing pressure on the
opposite ends of the door, the pressure of the
spring being relatively small but su?icient to in
sure tight closing of the door against its frame.
Since the structure and operation of- the mount
ing means on opposite sides of the door are iden
tical, only the operation of the structure on the
right-hand side of the oven door will be de
‘hook 36 with the stop 32 prevents further move
ment of the door. Fully opening the door
stretches the spring a distance equal to the
space between the lines C and D, while the pivot
58 is moved upwardly from the position indicated
by the line C’ to the position indicated by the
line D’, or abouttwice the distance between the
lines C and D. -
It will be noted that, due to the arrangement
of the arms 46 and 56 and their relationship to
the pivot 52, the length of the spring need be
only equal to the distance between the lower
arms 46 when the door is closed, which distance
is considerably less than the width of the door.
15 This is due to the length of the arms 56, the ends
of which extend to the vertical planes of the
hangers at the opposite sides of the door, as will
be seen from Fig. 1.
As the oven door is opened, the lever 22 and
From the foregoing it will be seen that, by my
the bent link 34 are moved upwardly and out
wardly, thus pulling up on the hanger 40 against 20 construction, not only a shorter spring can be
used but that, due to the minimized stretching
the action of the spring 44. If the door is opened
of the spring as the door is opened, the life of
only to about the extent shown in Fig. 4, the ends
the spring is greatly increased. .
41 of the spring will move only from the line A
What I claim is:
to the line B. In other words, the spring is
1. The combination with a range structure de
stretched very little and will, therefore, close the
?ning an oven compartment having a front ac
oven door relatively gently. The reason for this
cess opening, a door for closing said opening, and
reduced stretching of the spring lies in the struc
means for mounting said door for rotation
ture of the three armed levers 48 and the rela
about a horizontal axis in closing or opening di
tion of the arms 46 and 56 thereof to each other
rection, of means for urging said door in clos
and to the pivot point 52. For example, be-,
ing direction when said door is moved in opening
cause ofthe length and position of the arm 56
direction to a predetermined point, and for re
relative to the arm 46, the pivot point 58 will
taining said door in any position to which it is
move upwardly from the line A’ to the line B’,
or about twice the distance between the lines A 35 . moved beyond said point, said means including
bent links pivotally connected, at their upper
and B. Thus, the stretching of the spring is
ends, to said door, rigid hangers disposed parallel
minimized in relation to the movement of the
to and adjacent the sides of said door with the
hanger in response to opening of the door. Also,
ends of said hangers connected to the
in this position, the center of gravity of the oven
said bent links and with the lower
door is still relatively close to the vertical plane 40 ends of saidof hangers
disposed below said oven
of the door opening, so that even the relatively
compartment in all positions of said door, a pair
small force of the slightly stretched spring is
of levers, said levers having upper relatively short
enough to move the door to closing position but,
arms pivoted to said structure at points below
as stated, the door is moved relatively gently.
said oven compartment and inwardly spaced from
It is also to be noted that in the position shown
the vertical planes of said hangers, whereby said
in Fig. 4, the bent link 34 has just come in con
levers are rotatable about horizontal axes normal
tact with, but has not begun to exert any pres
to the axis of rotation of said door, said levers
sure against the lug 42 on the portion 28 of the
further including lower relatively short arms dis
lever 22. There is, therefore, no extraneous
posed in substantially the vertical planes of said
force to interfere with the closing of the door by 50 upper arms, and horizontal arms disposed sub
the spring.
stantially midway between the ends of said up
When the door is opened beyond the position
per and lower arms and extending outwardly to
shown in Fig. 4, as for example, to the position
the vertical planes of said hangers, the outer
shown in Fig. 6, the center of gravity of the door
ends 'of said horizontal arms being connected to
is further removed from the vertical plane of the or Cl the lower ends of said hangers, and a horizon
door opening and the bent link 34 engages and
tally-disposed spring connected to the ends of
presses down on the lug 42. The weight of the
said lower arms for resisting rotation of said
door overcomes the force of the spring, so that
the door remains in open position but is pre
2. The structure recited in claim 1 in which
vented from falling to the position of Fig. 8 by 60 the horizontal arms of said levers are so related
the spring 44. In other words, the door is bal
to ‘said upper and lower arms and to the pivot
anced. Again it will be noted that,’ while the
point of said levers that the movement of the
spring has been further stretched a distance‘
outer ends of said horizontal arms is about twice
equal to the distance between the lines B and C,
as extensive as the movement of the lower ends of
the pivot point 58 has moved upwardly from the P said lower arms so that said spring is stretched
position‘indicated by the line B’ to the position
and contracted to a relatively small extent as
indicated by the line C’, or about twice the dis
compared with the movement of said door in
tance from the line B to the line C. The same
opening or closing direction.
is true when the oven door is fully opened, as
shown in Fig. 8, in which engagement of the 70
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