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Патент USA US3077165

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Feb. 12, 1963
R. B. MADDOCK ETAL
. 3,077,155
DEVICE FOR TREATING PHOTOGRAPHIC SHEET MATERIAL
Filed Aug. 8, 1960
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Patented Feb. 12, 1963
1
2.
after being placed in the carrier frame by partially lifting
3,077,155
DEVICE FGR TREA'EENG Pl-HGITQGRAPHC
SHEET MATEREAL
Ralph E. h’iaddock
Eugene (3. Winter, Minueapoli
Minn, assiguors to fake €orporation, Minneapolis,
Minn.
Aug. 8, 196b, tier. No. 4’7,°3§§4
e (Claims. (@l. gfi-uil?)
and lowering the same rapidly a few times. In the com
plete use of the device the carrier frame need not be ez1~
tirely removed from the tank at any time.
it will not be here attempted to set forth and indicate
all of the various objects and advantages incident to the
invention, but other objects and advantages will be
referre to in or else will become apparent from that
which follows.
The invention relates to an improvement in a device for 10
The invention will appear more clearly from the follow
reating photographic sheet material and more particu
ing detailed description when taken in connection with the
accompanying drawings, showing by way of example a
photographic sheet material.
prefe'ied embodiment of the inventive idea wherein like
In making photographic prints the film or plate after
numerals refer to like parts throughout.
being exposed, is placed in a developing liquid, then 15
in the drawings forming part of this application:
larly to a device including a tank and holder for treating
transferred to at shortstop solution, then placed in a ?xing
FlGURE 1 is a perspective view of the device with the
solution and then placed in a washing liquid.
carrier frame partially lifted from the tank with a. piece
Prints must also be washed and washing has been done
sheet material in position in the carrier, a portion of the
tank being broken away.
by immersing sheets in a tray of water, the water being
FIGURE 2 is a top plan view of the tank and carrier
changed by one means or another, and the various sheets 20
frame the frame in position in the tank.
manually separated so that fresh water reaches all the
FIGURE 3 is a reduced front view of the carrier frame
sheets.
removed from ths tank.
Another method is to place the sheet material into a
basket with the sheet supported on edge in a vertical posi
FEGURE 4 is a top plan View of the tank with the car
tion. The basket is placed in a tank and water is circu 25 rier frame removed.
lated into and out of the tank. Other methods have been
FlGURE 5 is a sectional View of the carrier frame on
the line 55-45 of FIGURE 7.
developed of suspending the sheet material in washing
Water. The present day means for washing have dis
FiGURE 6 is an end view of the tank.
advantages of space required, as with trays, and baskets
FEGURE 7 is a longitudinal sectional view through the
which have to be removed from the treating tank and 30 tank and carrier frame, the latter being shown in lowered
opened. Space must be allowed for resting the basket to
position, and a portion of the aspirator tube being broken
away.
load and unload the same.
it is an object of this invention to provide a tank sub
FlGUR‘E 8 is a side elevational vi-w of the water inlet
stantially rectangular in cross section and large enough
?tting which includes a combined vacuum breaker and
to accept a reasonable number of th largest size sheets 35 air aspirator.
intended to be treated which also allows smaller sizes in
Referring to the drawings in detail, the numeral lb
designates a tank formed primarily of the side wall 22
greater numbers to he treated. The dev'ce has means for
and iii together with end walls to and its? and the bottom
together
introdncin<7
withwater into
forand
creating
draining
air bubles
water from
at thethe
bottom
29.
The upper end of the tank is formed with an on
of the tank which rise and agitate the sheets allowing the 40 larged portion 22". which extends transversely of and
longitudinally throughout the length of the tank. The en
fresh water to wash effectively and rapidly.
larged portion includes the ?angs portions 24} and 28 ex
it is a further object to provide an open carrier frame
tending outwardly from the upper edges of walls 12 and
which slips into the tank and the bottom edge of the sheet
material rests on supports on the bottom frame member.
14 respectively, together with the upstanding short Wall
respectively. The upper edges of the
t is also an object to provide rib means in the tank project 45 portions 3% and
short walls 34} and 52 are formed with the lip portions 34;
ing inwardly from the side walls and alternately posi
and 36, respectively.
tioned in staggered relation from side to side. it is a
Secured to the inner surface of the side wall l2 are the
still further obiect to provide alternately spaced recesses in
vertical spaced ribs 38, 40, 42 and till, and similarly
the upper and lower frame members which receive the
secured to the inner surface of the side wall 12 are the
rib means of
tank to thereby hold the sheets out of a
plane and impart self edge-supporting characteristics to
vertical space ribs 46, 4d, 5d and 52. The vertical ribs
of one wall are not oppositely disposed with respect to
the sheets. The top and bottom members of the carrier
those on the other but alternately positioned.
frame are of an open grid coustruction to facilitate move
Further provided in the upper end ‘of the end wall 16
ment of the frame in the water-tilled tank by providing 55
is the notch 54 in which is positioned the tube portion 56
less resistance thereto as the same are in the water. Fur
of the inlet elbow member ‘5a’; which includes the com
ther, the open rib construction allows water and air to
bined vacuum breaker and ‘air aspirator 6t} and which
pass during the treating cycle and also allows the frame to
mounts the upper end ‘62 of the L-shaped tube 64. The
readily be removed.
it is also an object to provide a tank and sheet carrier 60 end portion 62 terminates at its lower end in the hori
zontal tube portion 66 which has the multiplicity of
frarne which holds the sheets submerged and which allows
perforations 63 formed on the underside thereof. The
retrieval of the sheets from the tank without removal of
perforations 68 are spaced so that they distribute evenly
the entire carrier frame from the tank. The carrier frame
air and liquid for uniform treatment of the sheet ma
need not be removed from the tank to place the sheets in
terial. The vtube portion 65 is positioned adjacent the
the same. The carrier frame need only be partially re
bottom of the tank it). The tube portion 56 of the inlet
moved from the tank to remove sheet material or to place
elbow 58 mounts the Water inlet tubing 68‘. Formed on
sheet material therein. The sheets are easily separated
the wall 15 is the box-like extended housing '70 from
3,077,155
ii
3
which depends the short tube member 71 which mounts
the outlet tubing 72.
Further provided is the carrier frame 74 which includes
the vertically disposed end members 74 and 76 to which.
are secured the open grid top and bottom members.
78 and 86, respectively. The grid formation of the top
and bottom members is accomplished by means of the
multiplicity of holes 82 formed through said members.
into any suitable drain as illustrated by the arrows in
FIGURE 7. The device may be placed on any supporting
surface close to a water supply and a drain. No other
work surface is needed for the sheet material is placed
C11 directly into the device, and the material-holding car
rier frame does not require removal from the tank at any
time for insertion or removal of the sheet material for
treating.
The open grid formation of the top and bottom members.
The invention is not to be undestood as restricted to
78 and 89 allows easy insertion and removal of the car- 10 the details set forth since these may be modi?ed within
rier frame due to the lessening of resistance of the top
and bottom members as the same are moved through
the scope of the appended claims without departing from
the spirit and scope of the invention.
Having thus described the invention, what is claimed
the water. The grid formation also allows water and
as new and desired to be secured by Letters Patent is:
air to pass upwardly therethrough from the tube por
tion 66 of the L-shaped member 64. The top member 15. 1. In a device for treating photographic sheet material,
a ‘tank having opposed side walls, opposed end walls and
78 of the frame 74 has formed on one edge thereof
a bottom wall, each of said side walls having spaced rib
the spaced recesses 84, 86, 88 and 90 which are positioned
means extending vertically thereon, the rib means of
so that the same slidably receive the ribs 4e, 4%, 5t} and
one of said side walls being staggered relative to the
52, respectively. Formed on the opposite edge of the
top member 78v are the spaced recesses 92, 94‘, 96 and 20 rib means of said opposed side wall, a frame carrier
member adapted to be positioned in said tank and hav
9d which are positioned so that the same slidably receive
ing end members, top and bottom members and open
the ribs 38, 4t}, 42 and 44, respectively.
sides, said top and bottom members having spaced re
The bottom member 8d of the frame 74 has formed
cesses formed therein and corresponding with said spaced
on one edge thereof the spaced recesses ltiti, 102, MM:
and 1% which are positioned so that the same receive the 25 rib means, the former engageable with the latter when
said carrier frame is positioned in said tank, whereby
ribs 52, 5t}, 48 and 4s, respectively. Formed on the 0psheet material is urged out of a single plane when placed
posite edge of the bottom member 8t} are the spaced
within said frame carrier member ‘and in said tank and ac
recesses M8, 110, 112 and 114 which are positioned so
cessible when said frame is lifted only partially from said
that the same slidably receive the ribs 44, 42, 4t} and
38, respectively. When the carrier frame '74 is placed in 30 tank.
2. In a device for treating photographic sheet ma
the tank 10>, the bottom of the same rests on the pair of
spaced stop members M37 and 109 and the pair of spaced
terial, a tank having side walls, end walls and a bottom
wall, opposed spaced rib means formed on said side walls
stop members 111 and 113, said stop members being
in staggered relation, a carrier frame member having
secured to the walls 12 and 14-. The inner ends of the
stop members are spaced so that the same grippingly en 35 open sides with end members connected by top ‘and bot
gage the tube portion 66 of the L-shaped tube member
tom members, said top and bottom members only of said
carrier frame having spaced recesses formed on the
64 to maintain the same in position in the tank.
edges thereof adapted to cooperate with said spaced rib
The carrier frame 74 is provided with a handle 116»
means when said carrier frame is slidably positioned
which is used to insert the frame into the tank and re
move the same from the tank and also to move the sheet 40 into said tank to thereby hold sheet material out of a
single plane when placed within said carrier frame and
material X up and down initially so that the same be
come separated. When it is desired to wash sheet ma
in said tank, the sheet material being accessible when
said frame is lifted only partially from said tank.
terial, such as X, in the tank 10, the carrier frame 74 is
lifted partially from the tank It} by means of handle 116
3. In a device for treating photographic material, a
as illustrated in FIGURE 1. The sheet material may
tank having side walls, ‘end walls and a bottom wall,
then be slipped into the tank It}, and the sheet is guided
a carrier frame having end members connected to top
to the bottom of the frame 74 by the ribs formed on the
and bottom members and open sides, cooperating means
inner surface of the walls 12. and 14. Due to the stag
formed on said side walls of said tank and said top
gered positions of the ribs 46, 48, 5t} and 52 with re
and bottom members of said carrier frame for bold
ing sheet material out of a single plane when said car
spect to the ribs 38, 4b, 42- and 44', the sheets of ma
terial are urged out of a plane thus giving a self edge sup
rier frame is positioned within said tank, sheet material
porting characteristic to the sheets.
in said frame being accessible when said frame is lifted
only partially from said tank.
The frame 74 is then fully lowered into the tank, and
the same holds the sheet material submerged in the tank.
4. The device of claim 3 including removable water
When the washing of the sheets is completed, the 55 inlet tube having a horizontal leg portion and a vertical
sheets may be easily removed from the tank by simply
leg portion, said horizontal leg portion held free in the
lifting on the handle 116 to thereby raise the carrier frame
bottom of said tank beneath said bottom member of said
74 out of the tank enough so that the sheets may be
carrier frame, said vertical leg of said inlet tube held in
grasped and removed.
position between one of said end members of said carrier
It will thus be seen that with the device presented here 60 frame and one of said end walls of said tank.
in the sheets of material may be placed in the tank or
5. In a device for 1treating photographic sheet material,
retrieved therefrom by manipulating ‘the carrier frame
a tank having side walls, end walls and a bottom wall,
'74 with the same still not entirely removed from the
opposed spaced rib means formed on said side walls of
tank, and the sheets are held out of a single plane due
said tank, a carrier frame member having a top and a
to the ribs formed on the walls of the tank, see broken 65 bottom member connected by end members forming open
.line Y in FIGURE 5. As the carrier frame is lowered
sides, said top and bottom members of said carrier frame
‘into the ‘tank the ribs slidably engage in the complemen
having spaced recesses formed on the edges thereof
adapted to cooperate with said spaced rib means when
tary recesses described heretofore.
The ?ow of water and air is in through the tube por
said carrier frame is slidably positioned into said tank
tion 56, through the vacuum braker and air aspirator 58, 770 to hold sheet material upright in said tank and accessible
downwardly through the tube portion 62 and out the
when said frame is lifted only partially from said tank.
holes 68 of the tube portion 66. The rising bubbles
6. In a device for treating photographic sheet material,
agitate the sheet material allowing the fresh water to
a tank having side walls, end walls and a bottom wall,
.wash effectively and rapidly. The excess water over
at least one rib means formed on at least one, of said
flows into the housing 76‘ and out the outlet tubing 72
tank side walls, a carrier frame adapted to be positioned
3,077,155
6
in said tank and having a top and bottom member con
nected by end members forming lopen sides, said top
and bottom members of said carrier frame having at
least one recess formed on at least one edge thereof for
receiving said rib means of said tank side wall when
said carrier frame is ‘inserted in said tank’ whereby sheet 5
material is urged out lof a single plane when placed
within said carrier frame and in said tank and accessible
when said frame is lifted only partially from said tank.
References Cited in the ?le of this patent
UNITED STATES PATENTS
Routh ______________ -_ June 2,
8 89,262
2,402,765
1908
Millman ____________ __ June 25, 1946
2,9 02,914
Dye et a1. ___________ __ Sept. 8, 1959
FOREIGN PATENTS
8,45 5
Great Britain _______________ __
1909
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