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Патент USA US2410934

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NOV. '12, 1946.
' 2,410,934
Filed‘ June ,21, 1945 '
4 Sheets-Sheet 1
041:2 F. FRzKcH
o_,..-_ FRENCH
2,410,934". '
Filed June 21, 1945
_ .
4 Sheets-Sheet 2
\V '
‘NOV. 12,1946.
Filed June 21, 1945
_4 Sheets-Shela 's’
041.511?! Fnanan
V "Ma
Nov. 12, 1946.
o." F. FRENCH“
Filed June 21, 1945
‘ 2,410,934
4 Sheets-Sheet 4
_ Patented Nov. 12, 1946"
2,410,934 _
Ogle F. French, Wichita, Kans.
Application June 21, 1945, Serial No. 600,805
8 Claims. (Cl. 134——108)
' 2
showing vlend doors ?aps in their open position,
This invention herein disclosed relates to a
Washing machine for window blinds, similar to
that of the Venetian type, and has for its prin-,
as forced by the blinds.
_ Fig. 7 is a vertical section at the upper ex
cipal object, to speed up the work to avoid water . tremity of the washing or rinsing walls, said view
including one of the spray nozzles.
spots, and furthermore to economize the cost of
Fig. 8 is a fragmentary inside elevation of Fig. '7.
-such work.
Fig. 9 is an enlarged section of the trolley and
A further object of this invention is to provide
track taken on line 9-9 in Fig. 14.
a series of chambers'coacting and being aligned
Fig. 10 is a section longitudinally of the track
for step-by-step continuous operation, namely,
?rst to wash and sterilize the blinds, second, to 10 crossing the rockable joint on line l0--l0 in
Fig. 14.
rinse thoroughly, third to evaporate rapidly to
Fig. 11 is a sectional view taken on line Il-—-l l
a dry state to avoid water spots and fromthence
in Fig. 14 to illustrate the trolley carrying means
outward for delivery.
for the free end of the track switch, parts re
A still further object of this invention is to
provide efficient means to heat water for wash 15 moved for convenience of illustration.
Fig. 12 is an enlarged end view of the drying
ing purpose and also provide for a current of
heated air and circulate the same through the
chamber, including a portion of the hot air duct.
Fig. 12—A is a modi?cation for the drying
chamber eliminating the heated air circulating
ducts by substituting infra red lamps therefor.
Fig. 13 is a plan view of the trolley chain race,
motor and gear ratio to actuate the travel of the
drying chamber for rapid evaporation of mois-'
ture from the blinds after washing and rinsing
the same to avoid marring or otherwise spoiling
the ?nished surface of the blind louvers as origi
nally treated.
A still further object of this invention is to
construct a unitary laundry machine for cleaning
Fig. 14 is an enlarged side view of the track
switch mechanism, parts removed for convenience
Window blinds made from slats, the process re
quired is a means to economize the cost of labor
of illustration.
Fig. 15 is a plan view of Fig. 14. .
Fig. 16 is a sectional view as modi?ed to elimi
nate the track by the adoption of a hook ‘to carry
to operate the machine, and furthermore the
cost of manufacturing the units-‘of the machine
is comparatively inexpensive and requires but a
narrow strip of ?oor space for its installation 30 the blinds direct by the chain. ’
Fig. 17 is a transverse view to that shown in ,
compared to that required for other complete
laundry equipment for work in general, and such
Fig. 16, showing the hook as detachably engaged
general laundrying is not included in this in
on the chain.
' As a more concise description of the drawings,
These and other objects will hereinafter be 35 it will be seen that the invention consists of,
washing, rinsing, and drying chambers, all being
more fully explained, reference being had to the ,
straight aligned to work coordinately as a unit
accompanying drawings forming a part of this
speci?cation, and in which like characters will
apply to like parts in the different views.
for a final result with respect to‘ washing blinds
for windows or the like.
Referring to the drawings:
Fig. 1 is a side elevation of the invention em
bodying the components of the machine with
' respect 'towashing, rinsing, and drying blinds
continuously as fed therein.
Fig. 2 is a top plan view of Fig. 1, showing the
motor and pipe circulating system, parts removed
spaced relation by ?exible strips B transversely
45 crossing the strips oppositely with respect to their
edges and being secured thereto to permit simul
' taneous rocking of the slats to an open or closed
for convenience of illustration.
Fig. 3 is a plan view of the‘ washing chamber,
water tank and heating pipes.
Fig. 4 is an end view of Fig. 3, parts removed
Attention is ?rst directed to the structure of
the said blinds as comprising a plurality of “slat
like elements A made of wood or other materials,
and being secured together in parallelism and in
position so that spray washing of the blinds will
be therethrough from edge to edge for‘the sides
of the slats and including the ?exible 'stripsf
To accomplish cleansing of the blinds bys'pray
washing, it will be seen that the‘components of
the said washing machine consists of all-‘shaped
Fig. 5 is a plan view of the rinsing chamber
washing chamber, later described, and being ver
and water tank therebeneath.
Fig. 6 is a fragmentary side view of Fig. 5 55 tically mounted on a water tank I, said tank hav
for convenience of illustration.
ing a tubular heating pipe 2 consisting of straight
catch basin with continuous drainage through
portions C of suitable length and diameter that
its respective said waste pipe l1.
are connected end to end correspondingly by re
After a thorough rinsing of the blinds, the
turn arced joints D for continuous circulation of
same are transferred into a drying chamber by
a current of heat through said pipe and outward 5 a relay switch later described, said chamber com
therefrom through a vertically disposed pipe 3
prising side walls “! spaced apart, the upper ex
that is connected to the discharge end of ?rst said
tremity of which is enclosedby a top member i9
pipe assembly and from thence to a chimney or
through which extends vent openings 20, said
the like, while the other ‘or intake end of said pipe
openings being provided with lids 2i to open as
2 has a gas burner I inserted therein and a gas 10 an exhaust for moisture evaporated by a current
supply pipe 5 as fuel feed for the burner, said pipe
having a valve control 6 for the gas, whereby
water contained in the tank may be heated to a‘
high degree of temperature, and then charged
with an e?icient washing compound and con
of heated air in the process of drying the blinds
and the said side walls being closed at their lower
, extremity by a metallic bottom 22 seated on a
‘support 23. Spaced upward from said metallic
15 bottom is a perforated plate 24, said plate being
tinuously circulated by a force pump to quickly
secured to the side walls of the drying chamber
cleanse the blinds as sprayed by the water while
and braced by metallic bars 25 extending across
said blinds are passing through the washing
the drying chamber from wall to wall whereby
chamber, the conveyance for the blinds later
a ?re-proof chamber 26 is arranged. Positioned
20 outward and along one side of the drying cham
Said washing chamber as heretofore stated is
ber is a mechanical heat circulating device con
vertically positioned and seated on bars- 6' cen
sisting of a motor 21 as actuating means for a fan
trally crossing the upper extremity of said tank
and the said chamber consisting of two hollow
28, the exhaust neck 29 of which communicates
with a heating device 30 and from thence into ,a
metallic‘members as legs ‘I that are spaced apart 26 duct 3|, the duct exhausting air of a high degree
and secured by a hollow bottom portion as a
of temperature into and through said chamber
crotch 1', the‘ space being su?icient for one set
26 and upwardly through the perforations 24'
of blinds to pass therebetween and also for a
of plate 24 into the drying chamber 26' above
plurality of spray nozzles 8 communicating with
described,-and when the blinds are dried they are
their respective hollows of said members and 30 removed from track terminals E that extend out
extending inwardly toward each other from the
confronting sides of said hollow members, said
ward from the'drying chamber to where they
rest 'on a beam 32 which is carried by posts 33.
hollow members being so positioned and con
It will be seen in Fig. 1, that blinds are conveyed
nected will function as sides and bottom of the
through the washing unit as a whole on a track
washing chamber, the sides of which are secured 35 _34 positioned above the washing and rinsing
by brace members 8'. The ends of the chambers
chambers while the drying chamber extends to
are closed by rubber ?aps 9, having one edge of
a higher plane to provide room for a rockable
each secured to its respectiveend of the side
,switch mechanism later described. Said track
walls by a strip 9’, said ?aps, adapted to flex
and race 35 spaced vertically are supported at
inward and outward as the blinds pass there 40 their forward ends a spaced distance from the
between on their path through the said washing
washing chamber by a vertically disposed post
chamber. The purpose of the flaps is to restrict
36, while the other ends of said track and race
the water spray from freely passing outward
are carried by the drying chamber as follows:
from the ends of the chamber and to retain the
It will be seen that the race a spaced distance
acquired heat from the temperature of the water '45 inward from its other end as at I slants upward
within said chamber but free to pass outward , and toward the drying chamber where its ter
through the opening at the upper extremity of
minal end seats on the upper extremity of the
the washing chamber-but being in contact with
drying chamber, said race being so formed is
the blinds on its path upward. The water pres
means to provide room for the track switch mech
sure for the spray nozzles is produced by a pump
anism and also to position the track and race in
ID that is actuated by a motor I I, said pump being
parallelism from the‘ forward ends to where the
connected to a pipe line comprised of a joint I!
slant begins. _The said race is formed from a
that connects the pump to one side of the wash
pair of L-shaped members spaced apart to pro
ing chamber to build up pressure in the hollow
vide an opening F between their confronting hori
thereof while the water supply is taken from tank 55 zontally disposed legs 38 while the other legs
I by pipe joints l3 for continuous circulation of
upwardly extend to form a channel in which to
the hot water that is treated with washing com
position an endless chain belt 39 that engages
pound as heretofore stated to cleanse the blind
on rollers 40 and sprockets 4| journalled in bear
section conveyed through the washing chamber
ings 42 upwardly extending from the vertically
in a continuous aligned movement. To discharge -60 disposed legs 38, said rollers to carry the weight
the water from the tank, it will be seen that by
of the upper portion of the belt while the lower
opening valve H the tank will drain through pipe
portion thereof slides on the legs horizontally
portion l5, it being understood that the water
from the washing chamber is free to return to
As. traveling means for the chain belt is
the tank as it drains from the bottom of said 65 through the medium of a motor 44 positioned on
chamber as a result of the spray action.
the chain race adjacent the ?rst named end
- ‘Said blinds as washed will enter a rinsing
thereof to actuate a train of gears 45, 46, 41, and
chamber that is vertically mounted on a tank
48 to reduce the speed travel of the chain belt
that functions as a catch basin i6 for the rinse
as the blinds are to move slowly through the
water as sprayed on the blinds, and from thence 70 washing, rinsing and drying chambers.
outward, through a waste pipe l1, otherwise it
To convey the blinds it will be seen that trolleys
will be seen that the rinsing chamber structurally
is the same as the washing chamber,_but supplied
with city water pressure line l5’, while its tank is
also reduced in size and merely to function as a 75
are provided to carry the blinds, said trolleys
comprising a sheave 49 to roll on the track, said
sheave being journalled in a bearing 50 having
a hook 5| downwardly extending to engage with
a hook G of a clip 52 that has a loop H'in which
a carrying bar 53 for the blind will engage, while
on the other or upper end of the bearing is a
?nger J of sufficient length to enter a link of
the chain as moving means for the clip or clips
to convey the blinds pendantedly through the
to an arcuate track “that is dimpled at spaced
intervals along its underside as at P, and the
said track at its'terminal ends being secured to
terminal ends correspondingly of a bar 60 that
crosses the elevated portion of the chain belt race
and being secured thereto at the longitudinal
center of said bar. As above stated with respect
washing and rinsing chambers. Immediately
to the trolley, it will be’ seen that it consists of
after the rinsing, the ?nger of the clip automatii
a bar 62 having an offset R to connect the same
caliy releases from the chain belt dueto a down
to the free end of the switch as shown in Fig. 11
ward incline K along the upper edge of the 10 to avoid obstructing the trolley roller 63, said
track as shown in Fig. 14 and co-incident there
roller being journalled between a pair of bearings
with the blinds thus detached are forced onward
64, while the lower ends of said bearings are
by edgewise contact and being directed by a
secured to the upper end of said offset bar where
rockable portion of the track that functions as
by the switch is easily rocked to registry with
a switch at to ?ll a series of tracks 55 positioned 16 adjacent endsof the drying chamber series of
in the drying chamber in spaced relation across
tracks, and the said trolley has a spring ten
said chambers and being in parallelism and ex
sioned stay bolt 65 to seat in the dimples at the
tending outward from the terminal end of said
instant of end registry of the switch and tracks,
drying chamber as shown in Figs. 1 and 2, at
consecutively or selectively as‘ the case may re
which outward point the blinds when laundered 20
are assembled for delivery. A portion of the
To move the switch from its locked position
other ends of said tracks are positioned con
there is provided a rod or chain 65 with which to
vergently and terminating as indicated by a
draw the bolt from engagement with the dimples
dotted arcuate line 55' so that the rocking move
to free the trolley for further movement of the _
ment of the free end of the switch member will 25v switch manually.
circumscribe and register rigidly but releasable in
As a modification for the drying chamber, at
consecutive order with the ends of the said series
tention is directed to Fig. 12—A in which the side
of tracks that terminate along said dotted line
walls are closely positioned so that a single blind
55’ as above described, whereby the said tracks
at a. time will pass there-between and being dried
of the drying chamber are co-ordinateiy ?lled
by a series of infra red lamps 61 positioned on the
with washed blinds to dry the sameco'ntinuously
inner side of both walls and being directed toward
step by step repeatedly duringthe washing action
of the machine.
‘ each other so that heat produced thereby will '
contactboth sides of the blind simultaneously
As a carrying means for all tracks, it will be
for rapid evaporation of moisture deposited on
seen thathanger bars 56 have their upper ends 35 the blind while passing through the rinsing
rigidly secured to their respective chain race as
chamber, and switch means to'make and break
in Fig. 9 and ceiling or top enclosurev of the dry
the electric current for the lamps wholly or in
ing chamber as in Fig. 12 while their lower ends
part from the upper rows of lamps downward as
have an offset L to space the bar portion from
are controlled.
the track, as well as to provide room for sheaves 40 desired
A further modi?cation resides in the carrying
to roll in the clear while conveying the blinds
means for the blinds through the medium of a
along said tracks 3l_ and '55.
InFigs. 9, 10, 11, 14, and 15 is shown the com
ponents ofa transfer switch mechanism con
sistingof a track portion as a switch?! rockably
joined to a. single track 34 between said rinsing
and drying chambers, the knuckle joint M of
abutting for rocking
‘which is concavo-convex‘
, coupling having a loop 68 on one end thereof to
engage the carrying bar of the blinds, while on
the other end of the coupling is a hook 69 to
engage On a knuckle 10 that rockably connects
the links of the chain. By this arrangement the
blinds are removed from the chain when laun
dered. In this modi?cation the single track and
movementv oppositely on a horizontal plane, said
chain belt extend through all of said chambers
switch member being rockably carried at one end 50 whereby the switch and series of track aré elimi
by a U-shaped frame ‘56', the legs of which ex
nated, and such other modi?cations may be made
tend horizontally and vertically aligned in spaced
as lie within the scope of the appended claims.
relation, the upper leg having an extension N
Having ‘fully described my invention, what I
positioned at right angle on the same plane and
claim as new and desire to secure 'by Letters
has a stud 51 pivotedly seated in a socket 58 that
Patent is:
is secured to the chain belt race while the lower
1. In a washing mi shine for window blinds, of
leg is secured rigid to the switch a spaced dis
the class described, a tank for containing wash-,
tance inward from its rockable connection with
ing ?uid, a heating pipe positioned in the tank
the single track, said space being equal to the
to be submerged by the ?uid, means to circulate
length of the offset of the upper leg, above re 60 heat through the pipe to heat the washing ?uid,
ferred to, to rock or swing the switch oppositely
a pair of hollow walls seated in spaced relation
on a horizontal plane by rocking the frame man
on the tank, a plurality of nozzles for each wall,
ually, it being understood that the legs of, the
the nozzles being in spaced relation on the 7 conU-shaped frame 56’ will straddle the slanting
fronting sides of their respective walls, a motor
portion Iv of the said race to facilitate an equal 65 actuated pump, and pipe means to connect the
distance swing of the switch oppositely as re
pump to the tank and said hollow walls to circu
quired for registry engagement 'of its free end
late ?uid from the tank'through the wallsvand
with the adjacent terminal ends of the series of
outward through the nozzles as washing means
tracks in the drying chamber so that the trolleys
for Venetian blinds pendantly carried between the
will travel smoothly from the switch element
hollow-walls, there being conveying means for
onto said track series selectively or consecutively
the blinds between said hollow walls.
from track to track of the series. It will be
2. In a washing machine for window blinds, of
seen that the other end of the transfer switch
the class described, a tank rectangular in form
is carried by a trolley later described that con
nects the outer or free end of the transfer switch 76 and of suitable depth, the upper extremity of I
which is open, a heat-conducting' pipe entering
5. In a washing machine for window blinds
at one side, running to and fro through the tank
comprising a tank as a water container, a spray
and outward therefrom for a desired temperature ,
washing mechanism positioned on the tank, a
conveyor for Venetian blinds in working relation
to the washing mechanism, said washing mecha
nism comprised of a pair of hollow elements sub
of washing ?uid contained in the tank, a pair of
hollow walls upwardly extending from the tank,
means carried by the tank to support the walls
concentric to the opening of the tank, a pump
connected with the hollow walls and interior of the
tank as circulating means for washing ?uid con
tained in the tank through said hollow walls, a
series of nozzles distributed over confronting sides
of the hollow walls, the nozzle series to eject
water toward each other under pressure from
the pump to wash a set of Venetian blinds on
' stantially rectangular in form and a hollow bot
tom communicatingly connecting the hollow ele
ments, said hollow elements being spaced apart
by the bottom so that the blinds may be con
veyed between the hollow elements, nozzles plu
rally applied to the confronting sides of the said
hollow elements, and a pump for circulation of
the water from the tank into the hollow elements
both sides thereof simultaneously while said 15 and outward through the nozzles as washing
blinds are moved continuously between the hol
means for both sides of Venetian blinds simul
low walls, and pendant carrying means for the '
taneously, said water returning to the tank.
6. In a washing machine for window blinds.
as recited in claim 5, pipes connecting the said
3. In a washing machine for window blinds, of
the class described, a tank as a container for 20 hollow elements with the tank and said pump
water, a heating duct of suitable diameter extend
for circulation of the water.
ing through the tank and being submerged by the
'7. In a washing machine for window blinds,
a hollow U-shapedstructure having upwardly
water as heating means therefor, a pair of hollow
walls in spaced relation carried by the tank, a
extending legs rectangular in form and being
plurality of nozzles for each wall, the nozzles be 25 spaced apart by its hollow crotch, the latter as
ing in spaced relation on the confronting sides
communicating means for water into the legs, a
of their respective walls, a pump having pipe
plurality of nozzles uniformly spaced over con
means to connect the pump to the tank and said
fronting sides of the legs for spraying hot water
hollow walls to force water from the tank into
from leg to leg across the space therebetween, a
the walls'and outward through the nozzles as 30 tank for heated water, said tank being open at
washing means for Venetian blinds pendantly
the upper extremity and upon which the U-shaped
carried between said hollow walls, and a pair of
structure is seated, a duct extending to and fro
rubber flaps to close each end of the space be
. within the tank and terminating in spaced rela
tween the hollow walls.
, tion a short distance inward from each wall of
4. In a washing machine for window blinds,
of the class described, a tank, a tubular heating
pipe positioned in said tank for heating water
the tank, and means to produce and cause circula
tion of hot air through the duct to heat the
in said tank, said pipe having straight portions
and arced joints to connect the straight portions
8. In a washing machine for window blinds,
a hollow U-shaped structure having upwardly
to increase the length of the pipe as coupled, 40 extending legs rectangular in form and being
means to circulate and heat the air for said pipe,
spaced apart by its hollow crotch, the latter as
a pair of vertically positioned hollow members
communicating means for water into the legs, a
having a hollow member to connect the same at
plurality of nozzles uniformly spaced over con
their lower extremities, bars to support the hol
fronting sides of the legs for spraying water
low members above said tank, and a plurality of 45 from leg to leg‘ across the space therebetween,
spray nozzles for the confronting sides of the
and a tank on which the hollow structure is
vertically disposed hollow members, said nozzles
seated, said tank being a catch basin for water
being evenly distributed in spaced relation over
as it leaves the U-shaped structure.
the entire area of the said sides.
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