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Патент USA US2404851

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July 30,1946.
. à. w. mamas-:m1 _
_Filed Jan. 23. 1942
2 sheets-smeet 1
Äuäy 3%, w46.
Fil'e‘d Jan. 25, 1942
2 Sheets-Sheet 2
»mi„ NM.
Patented July 30, 1946
Frank W. Knowles and Hawley A. Dudley, Seattle,
“ i Wash.; said Dudley assignor to said Knowles
Application January 23, 1942, Serial No. 427,907
4 Claims.
(Cl. 312-149)
The present invention relates to improvements
in refrigerated lockers. In particular, the present
invention relates to improvements in a type of
refrigerated chamber having a large number of
open ends abutting against the inside of the hous
ing. The end openings of the shells are arranged
in alignment with the openings 6 closed -by the
insulated doors l. Each shell 8 supports therein
small compartments which may be rented sepa-_`
a rectangular and elongated drawer 9 which has
rately. to different people.
its sides and ends closed as well as the top, with
In the past, refrigerated lockers have been un
the> exception »of a plurality of small openings
satisfactory because in some instances the user
having removable locker closures I0, each one of
has. had his whole body subjected Vto the refrig
which givesaccess to an individual locker. Each
erating temperatures, and where such has not
been the case, the equipment has been inadequate 10 locker in a drawer 9 is‘separated from its con
tiguous lockers by a partition II. The tubular
for large commercial installations.
construction of the drawer and the partitions
Itis an object of the present invention to pro
separating the individual lockers gives a strong
vide a refrigerated locker which will have a
drawer of large dimensions, and which drawer 15 and rugged device. The `drawer may be con
structed of half-inch plywood, have a cross sec
may be easily -moved in and out of a refrigerated
tion two feet square, and be sixteen .feet long.
Another object' of the present invention is the - Such a construction will hold about sixteen‘hun
dred ïpounds of produce and operate in a very
provisionpof `a refrigerated housing having op
manner. Each of the drawers may
posed openings, an elongated drawer adapted to
slide endwise through said openings, a closure for 20 be supported upon . suitable rollers I2 placed
thereunder and bearing at their ends in the side
each of said openings, each of said closures being
walls of theshell. `The rollers at the end of the
larger than itsrespective opening and overlying
shelll may 4have additional support and bearing
said opening, and means for engaging each of
said closures with either said housing or said 25 surface bythe provision of vertical uprights I3
placed alongside the ends of each tier 'of‘shells
An end roller is, at times, called upon to support
the total weight of the drawer. A top or hold
above, and which will attainthe objects of the
down roller i4 is provided and placed centrally
present invention, are hereinafter described in
detail and shown in the accompanyingdrawings 30 of the shell. This hold-down roller will prevent
the inner end of the locker from tipping up as
the other end is withdrawn. The sides of the
Figure 1 is an elevational view of a housing
shell may be provided with openings I5 for the
having two tiers of insulated closures behind
circulation of refrigerated air to the interior of
which are their respective drawers.
the shell and around the drawer. The tiers of
Figure 2 is a sectional end view on the line 2-2
of Figure 1.
shells may be spaced apart to provide vertical
air-circulating spaces I6, orducts. Also the top
Figure 3 is an elevational view of the locking
and bottom `2, 3 of the housing I may be spaced
mechanism taken on the linea-3 of Figure 2.
from the top and bottom of the tiers of shells
„Figure 4 is a sectional plan View of the locking
to provide upperv I'I and lower I8 air-circulat
device taken on the line 4_4 of `Figure 3.
40 ing ducts, so that refrigerated air may be circu
Figuresñ, 6, and 7 are `Views corresponding to
lated both along the tiers and up and `down
a portion of Figure 3 and showing the locking
between them. Such a construction will allow
mechanism in various positions.
produce` placed in the drawers to be rapidly re
Figuresl and 2Ishow a refrigerated housing I
which may be refrigerated by‘any suitable means 45 frigerated by the circulation of cold air in theY
circulation ducts I6, I1, I8, and through the open
for refrigerating and> circulating air there
l5 inthe shells and around the drawers.
through. The housing I comprises an insulated'
The closed and imperforate ends I9 of the draw
top 2 and bottom 3 with insulated side frames
ers are spaced from the inside surface of the
4, 5,‘which`have therein tiered openings 6 closed
by suitable closures 'I which overlie the openings 50 closures 'I a distance of four or five inches.` The
.sides of this space between the drawer ends I9
and‘ñt against the side frames 4, 5. Inside the
and the closures ‘I are closed by the sides of the
housing I are arranged tiers of shells 8 one upon
openingsv 6 in the side frames 4, 5. 'I'his space
another. These shells are formed as tubes which
between the closures and the drawer ends forms,V
are square in` cross section, and which extend
across the housingfrom side to ¿side with their lili'r in connection with the flexible seals .20 which "
îcontact both the inner portion of the frame ‘and
drawer while disengaging it from the other.
Devices- constructed in accordance with the
cent bolt. However, the bracket openings are
narrow enough to prevent turning of the pin.
the inertia forces of the drawer as it slides or is
pushed home into position in the insulated hous~
ing l.
hold the closures 'i to the side frames or, option
The back of each closure 'I carries a locking
mechanism which is placed in the air check ~
pocket between the back of the closure and the
end of the adjacent drawer. The sides of the
frame openings 6 are provided" with""suitable
frame bolt-sockets 30 adapted""t"ó“"i"eceivè tlîe'r'érlds'
of frame locking bolts or locking members 3j@`
The ends of the drawers are providedsuitë
instance are shown in the form of strap loops at
the cam follower plate ‘54 secured to the feeler Y
loraclget‘openíngs for thepin" will allow this mo
tion.' However, ‘n the ‘stop fof einiè? en‘d of the '
able drawer bolt-sockets 32 which in the‘prese'nt
As long as the feeler pin 50 -is held between its
stops, a cam 53 secured to an adjacent bolt and
pin, will act, upon motion of the bolt, to give the
feeler pin motion toward and from the bolt. The
The locking mechanism which is adapted to
ally, to the
3 v4to ends
_O__f 'the _rawengis
‘ ‘ best
' ` shown
allow the pin to move from and toward the adja
the drawer, a pocket. As a drawer end enters
this pocket it will compress the air therein, and
this compressed air will act as a cushion to absorb
femeler pin is not in position, then-'the cam as it
ìn‘oves in the direction of that Stop will, Jthrough
rthe claro fiollower plate 54, cause movement of
the feeler pin 5l in that direction. When the
fe‘e'le pin 5l! is,` held between its stops, there is
spacfedf'froxìf each'is'ide of the follower plate 54,
about the thickness of the plate, a locking lug
55“, 5l to _limit movement of the follower plate
and ieelér ~pin when the stops are not in position
20 to do so.
These locking. lugs are both mounted
'Qn the same. plate ba'se‘which is securedto. the
'ßaçhgâîto 'the .ends la of.: theV drawers. i These.
back. of the' closure.. Each of the locking lugshas
drawer bolt-.sockets e2. are adapted to receire the.
a projecting., lip 5S, 5.8 opposite' to. 'the other. and.
ends Qi. drawer lodging. bolts. 3.3 orv av portion of. the
just abate
cam :folloy'ver` when' such is 'd‘e
looking members Asxsiiowrl in the. drawings, the
pressed. These lips form av narrow slot. slightly.
drawer; locking bolts are carried. by. the frame
wider than the follower plate 54. Iffthe move;
lockingboltsfti in the formiof. anY offset. finger
ment oi the ieelerjpin is ito, the right, as. shown
attached thereto.' The .two separate .bolts and
in Figure 6, then the cam follower. plate'ißï will
sockets are arranged soV thatA as'a'frame. locking.
move. against the right. hand 'cam'iîolloxiíerV plate
bolt> is about t0. ,ieaveits socketfthe drawer lock:
locking. lug 55. and‘the‘n the: carri follower. plate
ing -bolt carriedtherewith .is just entering. its. re
will begin rto moore> away. from the bolt. but the
spective socket.I It will-thusfbe seen that ifthe
upper edge of the. plate' will lock. under the 'lip'
proplerisoçkets arein registry with .the .proper
5t. attached tothe upper.. part. of. the rightlockiñg
bQlts-„the bolts- will. not, be entirely unlocked. from
-the3sockets in ther-frameand the drawerj at the.
same time. The; inner.; ends oi the .bolt's‘are‘car-~ i
riedon` _boltplates 34.. ."Iî‘ne bolt plates? are ícon
nectedi by* means of 'atie-bar 135. so :that all .the4
lug. . Tbiswill pr'eventupward movement of the
cam plate’. and prevent. iurther'. movement of» the'
cam andthe bolt carrying it.v This will prevent>
withdrawal of the bolt from the frame ’socketÍ
This in turn will prevent removal'o'fïthe door Aof
bolt‘plates will operate together.; The bolt...plates
the .closure ‘from the.` frame in' the absence ofl‘th’e..
ëláiareipivoted .by pinsA 3.6. onfmounting brackets
The action; is the s'ame
3].,that space them awayi‘romthebackíof; thev 40 , drawer and its stop 5l;
'3_3. 4arel being. withi
closureV Fl. ' The outer tends. of_ the bolts. are: sup
ported-in' openingsv inîsuitable brackets.' 33 and..
ton.y i’Thej-bolt‘supporting. plates :34;may be rotatsl
it. the. fdrawer. locking. bolts
drawn“ from. theirrespective. sockets. “ 'The cam ‘
53. will move .to the left and ifo-tl'iefrarne“‘acting> _
as a stop is riotin position the cam. follower. plate i _
ed. abodt‘ftheir ‘pivots / 3o fby‘ the 'insertion ofßan
operating key 'SS'KEigure 8’).« through ~'ant opening , 45 .willthen bear against. the left lockinglug ‘.'>"I»ar1d»¿`
fàûgirr'the :closure 'is which key* will "fit in fa socket
4l îñxeditonfa pivot .pin' 36.2which is in'turn secured.
toj aiboltit-plate 311. ~Rotation .of 'a socket. 4;! will.,
rotate the attached bolt. plate which', through the i
tief-bar Si; Avwill .rotate :the ïother“ bolt. plate’an‘dL.
thus all thek bolts will. be actuatedaandithe 'closure'.
‘i mayïb‘e securedfto'eitherïtlie'drawer or the’ ins'ui"v
.Iniorder tofsafeguard
"" "against"lVI
clo- «
lock under its lip 5d, 'and Willrthusprevëîìtïs'uñjl
cient motion to withdrawlthe’drawe?‘lockirígbolt
ï ` "
The.l operation oflthe‘îabove describedL device is,
os` fouows z 1 with the drawers au. in ‘position ‘endif
filled with produce, refrigerated air maybe> if:
culated‘. in. the upper an'dïll'ower airl passageways
l1 .andi sanddowri between the tiers enroiig‘njtriei:
Vertical air duct'sml'lï andïarou?d'th‘e"drawérsfgl
by passage'tlirough the'openi?g‘s 'läfir'i thè'slïiells
surellifrom a drawer whencthedrawer vis'ext‘end‘e‘d-Í 55 8. This circulation of refrigerated air-willlsëi‘vëz
out 'E of . theA refrigerated chamber," or" to ïprevent
removal 'of aiclosurelfrom .the r»frame fwh’en' the `
drawer is not vinï'registryto?receive'the'drawer
locking bolt 33, there is provided"a"registry'lock¿ ~
ing:r “means which Àwill .' .prevent ' operation" îofï'. the
bolt ir”r the properï‘sock'ets' areV not; in registry andi‘.
adapted :to receiveltheibolts asthey'are moved.
to, freez'e andikeep: frozen such' produce as `-may
be- Vcontained- in each ’ofßthe individualïlockèrsi
Of. course it vis desirable§wheh 'large Vaîr?cunts-"óf
ducegbe previously lfrozen in a separate'compart
ment, lsuchV as îa qui'ckffreezingl'compartimento
where the temperature may. be,inaintainedomi'ich_`V
.fromone set of sockets’ to the other. “ The regis-`
lower .` than necessary.. in a; storage; locker., and
try .locking means has. as its ‘principal‘compon'ent »
a >feeleripiniilwhichis of such a' length’tl'iatlone- 65 where. the circulation `may. vbei more,îe'clrv
a quick freezing. "Normally, allothle` insulated'v
endîwill, .when theclosure is in place, just touch
the'side ofthe closure `opening liandthe other endu
ofthe‘ïpiníw‘ill. just touch 'a stop 5|. which is se- y
cured tothe end. I9 of the`drawer.'. The‘fe'el'er
closures. 'Lare lockediinto thehousi'ng‘side frames;
é, 'aand are. free. from' the drawers;` When it is.
desired to. remove. a.. drawer. .from the-hou`sing,î. al`
key 3.!Lis. insertedoin the. key-opening MlëirîLthe.
pin mayrbemade inthe forni ofa'i flati’b’a'r 'with
closure 1~,.'a'nd.'thè locking mechanism.. isoperàtèdo,
its' face parallel tothe drawer and closuregand.
to unlock theîclo'sure from theframe. and loclditi.
Vthe .pin :may be supported at. one "endfin thefbolt
on‘to the drawer; 'The‘ï handle ón.the HOOrniay..
bracket SBAand'inïthe other endin a‘f'eelerpin
pulled u'pon andiithe closure> andodrawer.;l
bracket 52. `The openings in .brackets 38A1'and-. 75. thenbe
moved outwardly fromîthe'hóusin‘g; The'drawozaA
52'which supportïthei-,feeler pin are 'élo'rigáte‘dlto ’
is never removed from the housing more than a
little less than about half way, leaving the half
remaining in the housing to counterbalance the
half removed. This removing of only half of the
drawer at a time by movement in either direction
even if the drawer is to be pulled in only one di
rection, that is, it leaves the housing through only
one opening.
Having thus described the construction and op
to either side of the housing, greatly simplifies
eration of our device, we claim:
the construction in that the strains on the drawer
are greatly reduced and the problem of providing
suitable rollers or bearings upon which the drawer
moves is much simpler. This is particularly so, 10
in View of the fact that thesedrawers are loaded
therein, a drawer supported within the housing
for movement outwardly through said opening, a
with weights of sixteen hundred pounds or more '
1. In a cabinet structure, a housing including
a side wall-` said side wall having an opening
closure member for said opening, a locking mem
ber moveably carried by the closure member, said
housing having a socket therein adjacent said
opening for receiving a portion ofrsaid locking
of produce. Entrance to individual lockers in the
drawer may be had through openings in the top
of the drawer which are closed by separate clo 15 member and maintaining the closure member in '
position closing said opening, a keeper carried by
sures l0 and locks. When the patron has removed
an end of the drawer, and said keeper being posi
or placed in his particular locker the desired ma
to receive therein a portion of the locking
terial, the drawer may then be returned to its
closed position, the closing shock being absorbed
member as it is withdrawn from the socket to de
by the air check pocket at the inner end of the 20 tachably secure theY closure member to the
drawer, and the locking mechanism operated to
2. In a cabinet structure, a housing including
secure the closure to the frame again and release
a wall, said wall having an opening therein, a
it from the drawer. The closure key upon being
drawer supported within the housing and adapted
inserted in the opening 4t will lit into a socket 4 I.
Rotation of the key -will then turn this socket and 25 to be moved endwise outwardly through said
opening, a closure member for said opening, a
the bolt plate to which it is connected. This in
plurality of locking members mounted for sliding
turn will rotate one bolt plate 34 and through a
movement on the inner face of the closure mem
tie-bar 35 will rotate the other bolt plate. Rota
ber, said housing having a plurality of sockets
tion of the bolt plates will operate the bolts in
therein for receiving portions of said locking
and out of their sockets. As the frame bolts are
members and maintaining the closure member in
withdrawn from their sockets, the drawer lock
position closing said opening, ay plurality of
ing bolts 4will be inserted into their sockets, and
keepers `mounted on the end of the drawer and
vice versa. Removal ofthe bolts from one set of
positioned to receive therein portions of said lock
sockets if the other set is not in proper registry is
ing members as the same are withdrawn from the
prevented by the feeler pin 5l which is designed
sockets to releasably secure the closure member
to have its ends ride against stops carried by the
to the drawer.
frame and the drawer. If either stop is not in po
sition, a camming device wil1 serve to lock the
ing opposite side walls, said side walls having
bolts so that they can not be moved.
The space I6 between the tiers of shells 8, and 40 aligned openings therein, a. drawer within the
housing supported to be moved outwardly through
the overlap of` the closures l from the edges of the
either of said openings, a closure member for one
openings E is such that the space between the
opening, a second closure member for the other
edges of closures in adjacent tiers is considerably7
opening, a locking member mounted for move
less than the thickness of an insulated closure I.
The closures may be _sealed to the face of the 45 ment on the first closure member, a locking mem
ber mounted for movement on the second closure
housing by inserting a felt sheet between the
member, said housing having a socket therein ad
closure and the housing. The overlap of the clo
jacent each opening :for receiving portions of the
sure should be equal to at least the thickness of
respective locking members and maintaining the
the closure, so that the insulation value across the
face of the overlap will be equal to the insula 50 closure members in positions closing said open
ings, a keeper carried by each end of the drawer,
tion value of the thickness of the closure. If this
and each keeper being positioned to receive there
overlap of the closure is six inches, then the dis
in a portion of the associated locking member as
tance between the sides of the drawers in adja
it is withdrawn from the socket to detachably se
cent tiers is a little over twelve inches, thirteen
and one-half. This distance is suii‘icient room to 65 cure the associated closure member to the drawer.
4. In a refrigerator cabinet, a housing includ
provide for the shell walls and still leave ample
ing opposite side walls, said sidewalls having
room for air circulation in the vertical passage
aligned openings therein, a tubular shell having
way I6. If the closures were to be hinged to the
open ends supported within the housing in
side frames 4, 5, it would be difficult, if not im
possible, to open adjacent closures in opposite 60 register with said openings, an elongated drawer
arranged within said tubular shell and adapted
tiers without interference, let alone to open such
to slide endwise therein and outwardly through
adjacent drawers and withdraw adjacent drawers
either of said openings, a closure member for each
at the same time. Tapered or plug-type closures
of said openings, movable locking members car
Without special offset hinges would have Vto be
ried by each closure member, keepers on each end
opened more than ninety degrees in order to clear
of said drawer, said housing having sockets there
the drawer as it was being withdrawn. The pres
in for receiving portions of said locking members
ent construction of overlapping closures enables
to maintain the closure members in positions
the tiers and closures to be set closely together
closing said openings, and said keepers being posi
and eliminates the necessity for using hinges.
The'provision of oversized air ducts between the 70 tioned to receive therein other portions of said
locking members as they are withdrawn from said
tiers is costly in the ñrst instance, as wel1 as in
maintenance, due to the poorer circulation and
the increased heat transfer. The use of such
overlapping insulated closures is very desirable,
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