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Патент USA US3099861

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Aug. 6, 1963
v. UNTERBRINK
3,099,851
APPARATUS FOR CLEANING AND APPLYING DRESSING T0 BOWLING LANES
Filed March 21,. 1962
4 Sheets-Sheet l
ITZE-TTZSE'
,
VICTOR
UNTERBRINK
Aug. 6, 1963
'
v. UNTERBRINK
3,099,851
APPARATUS FOR CLEANING AND APPLYING DRESSING TO BOWLING LANES
Filed March 21, 1962
4 Sheets-Sheet 2
Q5. 7.
5\8 3,9 3,3
35
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1
as
JTZZEZT 2::
VICTOR
UNTERBRINK
17
Aug. 6, 1963
V. UNTERBRINK
v
3,099,85 1
APPARATUS FOR CLEANING AND APPLYING DRESSING TO BOWLING LANES
Filed March 21, 1962
4 Sheets-Sheet 3
Exam mar
VICTOR
117:7
UNTERBRINK
EZT.
Aug. 6, 1963
v. UNTERBRINK
3,099,851
APPARATUS FOR CLEANING AND APPLYING DRESSING T0 BOWLING LANES
Filed March 21, 1962
4 Sheets-Sheet 4
1277.25.27 at
VICTOR
UNTERBRINK
United States Patent G
1
ce
3,099,851
Patented Aug. 6, 1963
2
dressing and dirt from the surface of a bowling lane and
3,099,851
APPARATUS FOR CLEANENG AND APPLYING
DRESSING T0 BUWLING LANES
Victor Unterbrink, Ottawa, Ghio, assignor to Pines Engi
neering Co., Inc, Aurora, iii” a corporation of Illinois
Filed Mar. 21, 1962, Ser. No. 181,254
9 Claims. (Cl- 15-50)
to apply a fresh layer of dressing onto the surface im
mediately after it has been so cleaned.
Another object is to provide a rugged, power-operated
‘apparatus of the character described with novel structural
characteristics that render it highly ef?cient in use, in
expensive to manufacture ‘and use, simple to operate and
one which includes novel means to prevent the application
of dressing to any surface not intended to receive such
The present invention relates to improvements in ap
paratus for cleaning and applying dressing to a ?oor sur 10 dressing.
The structure by means of which the above noted and
face and is more particularly concerned with the novel
other advantages and objects of the invention are attained
construction, assembly and mode of operation of self
will be described in the following speci?cation, taken in
propelled apparatus designed to initially wipe clean and
conjunction with the accompanying drawings showing
to then apply dressing to the surface of a bowling lane or
15 preferred illustrative embodiments of the invention, in
the :like uniformly and over selected areas thereof.
which:
Bowling lanes in particular are di?icult to clean and
FIG. 1 is a plan view of a bowling lane, shown on a
‘then dress because of the need to avoid the build-up of
reduced scale;
excessive quantities of lane dressing in any area or areas
FIG. 2 is an enlarged cross-sectional view thereof, taken
thereof and further because it is desirable that all lanes
in a series be dressed the same so as to make them uni 20 substantially on line 2-2 of FIG. 1;
FIG. 3 is a perspective view of a cleaning and dressing
formly responsive to a bowling ball advanced therealong.
Heretofore, ‘bowling lanes have been swept manually and
applying apparatus embodying features of the invention;
return tracks, on the foul line and even over ‘areas of 30
portion of the bowling lane in section;
FIG. 4 is a top plan view of the apparatus, showing
by machine sweepers and then a ?ne coating of lubricat
the housing removed;
ing oil or other dressing, liquid or viscous, has been ap
FIG. 5 is an elevational view of the left-hand end of
plied to the surface as by spraying. Spraying has been 25
the apparatus as viewed in FIG. 4, showing the gutter
most unsatisfactory primarily because the spray cannot
portion of the bowling lane in section;
be applied evenly over the entire surface of ‘a :lane, to say
FIG. 6 is an elevational view of the right-hand end of
nothing about a series of lanes, and further, sprayed
the apparatus as viewed in FIG. 4, showing the ‘gutter
dressing material is deposited in the gutters, in the ball
the approach surface. This latter results in the player
slipping during delivery of a ball, Whereas dressing de
posited in the gutters and ball-return tracks accumulates
FIG. 7 is an enlarged transverse vertical sectional view
taken substantially ‘on line 7—7 of ‘FIG. 4;
FIG. 8 is a transverse sectional view of a portion of a
lane dressing apparatus, showing a modi?ed form of struc
results in ?nger slippage. Uneven application of lane 35 ture for the storage and ‘application of ‘dressing to the
brush; and
dressing resulting in excessive accumulation of same on
FIG. 9 is a view similar to FIG. 8, showing another
certain lane areas creates a sticky condition on the lane.
modi?ed structure.
Furthermore, an excessive build-up of dressing is gradually
Referring to the FIGS. 1 and 2 exemplary disclosures
worn away only where the ball travels thereby making 40
of a bowling lane, such lanes are constructed of wood
a groove for the ball and decreasing player control.
having the requisite degrees of hardness to resist wear at
In accordance with the present invention, novel means
points of ball and of pin impact and to assist friction en
and apparatus is provided for cleaning the surface of
gagement between the lane and ball during the major
the bowling lane in advance of the application of lane
dressing which which is applied uniformly over the entire 45 distance of its travel down the lane. For example, in the
lane illustrated, the end portion “A,” which receives the
length of the lane Without material loss and without the
impact of the ball dropped thereon by a player, and the
deposit of any dressing in the gutters or on the ball return
end portion “B,” upon which the pins are spotted, are of
tracks. The apparatus, which is self-propelled, functions
to stop short of the foul line so as to avoid any likelihood
hard wood, such as hard maple, whereas the intermediate
of lane dressing being deposited thereon and subsequently 50 portion “C” usually is constructed of soft pine. All sur
picked up by the shoe of the ‘bowler who may touch the
faces are coated with lacquer and unless protected by
foul line or pass slightly beyond same.
suitable lane dressing, the lacquer tends to burn from
These advantages are attained by cont-rolled delivery
frictional impact, ‘to build up around points of ball impact
of the lane dressing to a power operated applicator which
and, not infrequently, the lacquer accumulates on a ball.
follows closely behind novel means for cleaning the lane 55 In the areas where there is no ball impact, such as in the
of all foreign matter, including ‘a previously applied lane
lane areas “C,” the ball must encounter su?icient fric
dressing. The apparatus herein disclosed is self-propelled
tional resistance to permit it to be controlled by the
on the ball surface and in the ?nger holes of the ball and
and it has the advantage of applying the dressing directly
onto the surface of the lane in such manner that there
is no possibility of any of the dressing being deposited in
the gutters or on the ball return tracks. Further, the ap
paratus of this invention functions to automatically stop
the application of dressing on a lane surface at a predeter
mined distance short of the foul line.
It is, therefore, an object of the invention to provide
an apparatus having the foregoing advantages.
Another object is to provide a self-propelled apparatus
player. Obviously, the application of too much dressing
anywhere along the length of the lane, as usually occurs
when applied by spraying, will result in such dressing
accumulating on the ball. Further, dressing applied by
spraying accumulates in the gutters 12 on the sides of the
lane and on the ball return tracks 13. This is objection
able not only from the standpoint of waste, but also
because dressing is picked up by the ball and not only
renders same adhesive and unmanageable, but enters the
?nger holes and impedes gripping and control.
of the character referred to which is entirely automatic
The apparatus herein disclosed is designed to apply
in its operation and is under complete control of the
dressing
uniformly on any smooth surface and particularly
70
operator at all times.
on the surface of a bowling lane. The apparatus is such
Another object of the invention is to provide in a single
that the lane surface is wiped clean prior to the applica
apparatus novel means to remove previously applied
3,099,851
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4
.
tion of the lane dressing thereon which is brought to a
halt automatically when the apparatus approaches the
foul line.
Referring now to the exemplary embodiment of the
bowling lane cleaner and dressing applicator shown in
FIGS. 3 to 6, and particularly to the FIG 3 disclosure,
the apparatus has the general shape of a substantially rec
tangular shallow body including a housing comprising a
cover 15, removable end panels 16 and a handle generally
indicated at 17. The housing 15—16 ‘is of a width sub
stantially greater than the width of bowling lane 11 and
it encloses a basic frame structure including upstanding
end plates 18, suitably connected together rigidly as by
mum downward movement of said surface cleaning as
sembly is limited by abutment of bosses 34 with the bot
tom ends of the respective slots 35. It should be apparent
that the entire surface cleaning assembly may be re
moved from the apparatus as a unit, upon disengaging
springs "39 from bosses 34 and lifting the assembly out
of the apparatus, thus facilitating replacement and
threading of a new cloth around the rolls and shafts
thereof.
In operation, insofar as the structure has been de
scribed, the apparatus is guided manually along the ‘bowl
in-g lane surface toward foul line 14 so as to advance
the web of roll 29 across said surface for sweeping same
means of a perimeter frame 19 connected to the lower
and wiping up all foreign particles thereon, including
margins thereof. The end plates 18 each have a bracket 15 previously applied dressings. At the same time, the web
21 secured ?rmly, as by welding, to one side edge thereof
29a is slowly advanced from the supply roll 29 to take
to provide a mounting for handle 17 which is pivotally
up shaft 36, so as to present a clean web surface to the
connected thereto, as by bolts 22.
lane surface being cleaned. The drive means to accom
A pair of shafts 23, each carrying rollers 24, extend
plish this will the described presently.
between end plates 18 and are journalled therein, one 20
The power operated lane dressing applicator assembly
adjacent each side edge near the bottom edges thereof.
28 includes a tank 41 adapted to contain liquid dressing.
The rollers 24 preferably are fabricated of suitable plas
The tank preferably extends between and is supported at
tic material, such as “nylon,” and they constitute means
its ends ‘by the end plates 18 and has a vented ?lling
to support the apparatus upon the surface of the lane while
opening 42 in its top wall. A downwardly inclined well
the apparatus is in use. As will be explained presently,
43 is formed in one side wall of said tank, having one
one of the shafts 23 is power operated so as to be rotatably
or more ports 44 at its lower end to admit restricted
driven to drive its rollers 24 for advancing the apparatus
quantities of liquid dressing thereinto. A wick 45 is
along the lane while in use. Each end plate 18 also
mounted in said well and its upper margin projects beyond
mounts, on its outside face, a rigid stub shaft 25 carrying
the related tank side wall so as to have wiping contact
a wheel 26 of -a diameter to dispose its lower perimeter 30 with a feed roll 46 journalled at its ends in end plates
below the surface of the lane 11 upon which the appa
18. One end of said roll extends outwardly beyond the
ratus is being advanced. More particularly, these wheels
related end plate and mounts ?rmly thereon a sprocket
26 are outrigger wheels and they overhang gutters 12 and
47 (FIG. 5). An endless chain 48 is trained over said
are ineffective when the apparatus is in use while cleaning
sprocket and over a sprocket 49 secured ?rmly on the
and applying dressing to the lane. They function, how
end of a shaft 51 of an electric motor 52 arranged with
ever, as wheels to support the entire apparatus above a
surface over which it is wheeled when not in service and,
in the assembly and preferably supported on the top wall
of tank 41 and operable to rotate the liquid dressing feed
more important, they cooperate with the normal upward
inclination 12a of gutters 12 (FIGS. 5-6) for a purpose
roll 46.
to be explained presently.
The other end of feed roll 46 projects through the
other end plate 18 (FIG. 6) and mounts ?rmly thereon
With particular reference to FIGS. 4 and 7, the basic
an eccentric pin 53 that extends through an aperture in
frame structure and particularly end plates 18 mounts a
one end of an arm 54, the other end of which is formed
power'driven surface cleaning assembly, generally indi
with a tooth 55 disposed for engagement with the teeth
cated at 27, and a power driven lane dressing applicator
of wheel 37. A suitable guide strap 56 is provided for
assembly, ‘generally indicated at 28. The surface clean
ing assembly 2-7 is a self-contained unit arranged at the;
forward or leading side of the apparatus (right-hand end
45 said arm 54 and a spring 57 ‘functions to urge the tooth
55 into engagement with the toothed wheel 37 at all times.
During operation of motor 52, and rotation of feed roll
as viewed in FIG. 7) and it includes a roll 29 of suitable
46, the arm 54 is reciprocated so as to engage succes
disposable sheet material, preferably an unwoven soft
cotton cloth, that is mounted on a shaft 31 having its ends
sive teeth in said wheel 37 for imparting step-@by-step
rotation to take-up shaiit 36 so as to advance the wiping
journalled for free rotation one in each of a pair of
cloth over roller 38 during machine operation. Reverse
mounting plates 32, one arranged on the inside face of
rotation of take-up shaft 36 is prevented by a spring
each end plate 18. These mounting plates each carry a
loaded pawl 60 engaged with toothed wheel 37. In
back plate 82a that has its side edges guided for vertical
order to prevent overrunning of the roll of cloth 29
sliding beneath ?anges 33 secured to or otherwise formed 55 suitable tension :blades 58 are mounted in spaced relation
on said end plates. Each mounting back plate 32a has a
on the top wall of the tank 41 in a manner to bear fric
tionally against said roll at all times.
boss 34 (FIG. 5) on its outwardly disposed face that
, projects freely through a guide slot 35 opening onto the
Also journalled in and extending between end plates
top edge of the related edge plate 18. Bosses 34 consti
'18 is a rotary brush 59, which has its shaft 61 extending
tute journals for a take-up shaft 36 bridging plates 32 60 outwardly through one of said plates and mounting a
sprocket 62 (FIG. 6). An endless chain 63 is trained
and extending parallel to but spaced forwardly of shaft
over said sprocket and over a sprocket 64 canried ?rmly
31. Take-up shaft 36 projects outwardly of one end
on the end of a shaft 65 of an electric motor 66 (FIG.
plate 15, as best shown in FIG. 6, and mounts ?rmly
4) ?rmly supported on said related end plate 18. A
thereon a toothed wheel 37 which constitutes means for
motor ‘67 is carried ‘by the other side plate 18 and it has
connecting said shaft wtih a power source operable for
imparting step-by-step rotation to said take-up shaft.
Referring now to FIG. 7, the web 29a of roll 29‘ is car
ried downwardly and is trained around a cushioned roller
38, journalled at its ends in said mounting plates 82 and
its driven shaft 68 extending outwardly through said plate
and mounting ?rmly a sprocket 69 (-FIG. 5) having a
drive connection through an endless chain 71 with a
sprocket 72 carried ?rmly on the projecting end of one
adjacent the lower edges thereof, and then upwardly 70 of the roller carrying shafts 23 for driving same. Both
around take-up shaft ‘36. A pair of springs 39 (one shown
motors 66-67 are connected in a common electrical cir
in FIG. 5) are bridged across bosses 34 so as to normally
cuit having a switch 73 ('FIG. 3) preferably mounted on
urge plates 32 and their shafts and rolls downwardly to
or adjacent to the hand :grip portion 17a of handle 17
maintain web 29a in surface contact with the surface of
so as to be under control of the operator at all times.
the bowling lane or other surface being treated. Maxi 75 With such common control, the brush 59 is driven at
3,099,851
5
6
all times during driving operation of the rollers 24.
However, because the relative diameters of rollers 24 and
of a kind to which the lane dressing will adhere in the
form of a ‘?ne ?lm for deposit on the surface of the rotat
brush 59 and the illustrated differential of the drive con
ing brush 59.
nections, the brush will have greater surface speed than
The FIG. 9 disclosure is somewhat like the ‘FIG. ‘8 dis
closure, but here the roll 84 is replaced by a trough 85
for retaining a supply of heavy viscous dressing '82 for en
surface contact at all times with feed roll 46 so as to
trainment on the surface of roll 83 and ultimate applica
receive lane dressing therefrom which is carried by said
tion to rotary brush 59. The trough preferably is of neo
brush to and deposited uniformly on the surface of rthe
prene and its roll contacting edge 85a functions as a
lane.
10 squeegee for controlling the deposit of dressing on feed
In order to control the quantity of liquid dressing de
roll 83.
livered to the rotary brush, the operating speed of feed
From the foregoing description it is believed that the
said rollers.
As best shown in FIG. 7, the rotary brush 59 is in
roll 46 is controlled through adjustment of a rheostat
74 connected in the circuit to drive motor 52 and mount
ed on one of the end plates 18. As best shown in FIG.
5, the rheostat includes a manually adjustable lever 75
normally urged ‘into an “S” or stop position by a ten
sioned spring 76 and which is connected to an operating
member 77 that is extended along handle 17 and is con
nected with a hand grip 7 8 (FIG. 3) so as to render the 20
rheostat adjustable whether by direct manual setting of
lever 75 or by manpulation of hand :grip 78 during ma
chine operation. The various positions of desired dress
ing application are indicated to the right of the stop posi
nature of the invention and the manner in which it is to
be carried out will be readily apparent to those skilled
in the art.
What I claim and desire to secure by Letters Patent
of the United States is:
1. An apparatus for cleaning and dressing the surface
of a bowling lane having -a foul line at one end and a
gutter on each side thereof the bottom surface of which
is inclined upwardly toward the surface of the lane in the
region of said foul line, said apparatus comprising a frame
structure including spaced end walls, shafts bridging said
end walls, rollers on said shafts supporting said frame
tion by “L” for slow speed of the brush and thereby 25 structure for movement .on the surface of said lane to
a light application of dressing, by the “M” or medium
ward the foul line, drive means for at least some :of said
position for a faster speed and greater dressing applica
rollers, a web of sheet material carried by said frame
tion, and by the “H” or heavy position for high speed
structure for wiping the lane surface over which the
and greatest application of dressing.
frame structure is moved, said sheet ‘material being re
Although the wick 45 is shown as overlying a splash 30 movable from said frame structure, a tank for fluid car
ried by said frame structure, a wick for receiving ?uid
any drippings from Ifeed roll 46 and to avoid any dripping
from said tank, a rotatable brush contacting the lane sur
or splashing on the adjacent vertical face of the well,
face for spreading the ?uid onto the wiped lane surface,
said wick may extend in a substantially straight line, as
separate drive means for said brush, means in contact with
indicated at 45a in FIG. 7, to bear against the upper
the wick and brush for conveying ?uid from the wick to
rear surface of the feed roll.
said brush, separate drive means for said conveying means,
In use, the apparatus is positioned at the far or pin
and outrigger wheels on said frame structure overhang
setting end “B” of the bowling lane with its outrigger
ing said gutters and engageable with the inclined ends of
Wheels 26 overhanging gutters 12 so that it is sup
said gutters for lifting the frame sufficiently to carry the
ported on the bowling lane surface by rollers 24. The 40 brush out of contact with the lane surface.
motors 66 and 67 are started whereupon the driven rollers
plate 81 on the upper end of Well v43, so as to receive
24 advance the apparatus (guided by the operator through
the handle 17) toward foul line 14 at a predetermined
uniform rate of speed while the rotory brush is being
driven. During such advance, the lane dressing feed roll
46 ‘is rotated at speeds determined by the setting of
rheostat 74 and the Web 29a is intermittently advanced
‘onto the take-up shaft 36 so as to present a continuous
sequence of clean wiping surfaces to said lane, thus
picking up all foreign matter and old dressing.
Dressing applied to the brush by feed roll 46 is applied
in the form of a uniform thin layer onto the cleaned lane
2. An apparatus for cleaning and dressing the surface
of a bowling lane having a foul line at one end and a
gutter on each side thereof the bottom surface of which
is inclined upwardly toward the surface of the lane in the
region of said foul line, said apparatus comprising a
frame structure, rollers supporting said frame structure
for movement on the surface of said lane toward said foul
line, drive means for at least some of said rollers, a web
of sheet material carried by said frame structure for wip
ing the lane surface over which the frame structure is
moved, said sheet material being removable from said
frame structure, a tank for ?uid carried by said frame
surface. When the apparatus approaches the foul line, the
structure, a Wick for receiving ?uid from- said tank, a
outrigger wheels 26 initially engage and then ride up the
rotatable brush ‘contacting the lane surface for spreading
inclined ends 12a of the ‘gutters. It should be noted that 55 the ?uid onto the wiped lane surface, drive means for
these wheels are located ahead of the rotating applicator
said brush, means in contact with the wick and brush
brush 59. Consequently, when said wheels climb out
for conveying ?uid from the wick to said brush, separate
of the gutters, the brush is raised out of contact with the
drive means for said conveying means, and means on said
lane surface and all application of lane dressing is there
by stopped. As this occurs ahead of the foul line, there
never is any possibility of lane dressing being deposited
frame structure engageable with the inclined ends of
the vgutters for lifting the frame structure off the lane sur
on or within the area closely adjacent to said foul line,
or on the side of .the foul line used by ‘a bowler in an
surface.
approach thereto, even though the operator may fail to
stop the operation of the apparatus.
Referring ‘now to the modified form of structure illus
trated in exemplary form in 'FIG. 8, the liquid dressing
tank 41 has been replaced with structure adapted for use
with a dressing having the viscosity of a light grease. As
face so as to carry the brush out of contact with said lane
3. An apparatus for cleaning and dressing the surface
of a bowling lane having a foul line at one end a gutter
65 on each side thereof the bottom surface of which is in
clined upwardly toward the surface of the lane in the
region of said foul line, said apparatus comprising a frame
structure, rollers supporting said frame structure for move
ment on the surface of said lane toward the foul line,
70 drive means for at least some of said rollers, a roll of
shown, the dressing 82 is disposed in the valley formed be
sheet material carried by said frame structure ‘and having
tween parallel contact rolls 83 and 84. Preferably, roll
its web disposed for wiping the lane surface over which
84 is made of suitable plastic material, such as neoprene,
the frame structure is moved, means to advance said
so as to resist adherence of the lane dressing thereto,
web step-by-step during operation of the apparatus, a
whereas the roll 83 is of suitable material, such as steel, 75 tank ‘for ?uid carried by said frame structure, a wick
3,099,851
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8
for receiving ?uid from said tank, a’brush contacting the
lane surface for spreading the ?uid onto the wiped lane
gagement with the floor surface, means to advance said
Web step-by-step over said roll during operation of the
apparatus, a tank for ?uid carried by said frame structure,
a wick for receiving ?uid from said tank, a rotatable
brush for spreading the ?uid onto the ?oor surface over
surface, means in contact with the wick and brush for,
conveying ?uid from the wick‘ to said lbrush, separate
drive means for said conveying means, and means on said
frame structure engageable with the inclined ends of the
gutters ‘for lifting the frame structure o? the lane sur
face so as to carry the ;brush out of contact with said lane
surface.
' which the frame structure is being moved, and means in
over which the frame structure is moved, a supply source
contact with the Wick and brush for conveying ?uid from
the Wick to said brush.
, 7. Apparatus for cleaning and dressing a floor surface
comprising, in combination, a frame structure, a roll of
fabric carried in said frame structure having its web
trained over a back-up roll and disposed in wiping engage
ment with the ?oor surface, means to advance said web
step-by-step over said roll duringoperation of the ap ,
paratus, a tank for ?uid carried by said frame structure,
and a rotatable brush disposed to receive ?uid from said
tank and operable to spread the ?uid onto the ?oor sur
for lane dressing, a rotatable brush contacting the lane
face over which the apparatus is'moved.
4. An apparatus for cleaning and dressing the surface
of a bowling lane having a foul line at one end and a
gutter on‘ each side thereof, said apparatus comprising
a frame structure, rollers supporting said frame structure
for movement on the surface of said lane, drive means for
at least some of said rollers, a Web of sheet material car
lI’iCd by said frame structure for wiping the lane surface
'
8. Apparatus for cleaning and dressing a ?oor sur
lane surface, drive means for said brush, means in con 20 face comprising, in combination, a frame structure, an
auxiliary frame mounted in said frame structure, a roll of
tact with the brush for conveying lane dressing from the
sheet material carried in said auxiliary frame, a back-up
supply source to said brush, separate drive means for
roll mounted in said auxiliary frame and over which the
conveying means, and means on said apparatus arranged
said sheet material is trained for Wiping engagement with
to cooperate with the gutters for lifting the apparatus off
the lane surface so as to carry the brush out of contact 25 the ?oor surface, means to advance said sheet material
step-by-step over said roll during operation of the ap
with said lane surface.
paratus, a container for surface dressing material carried
5. Apparatus for cleaning and dressing a floor surface
by said frame structure, and a rotatable brush ‘disposed to
comprising, in combination, a frame structure, a dispos
receive surface dressing from said container and operable
able web carried ‘by said frame structure and arranged
for wiping engagement with the ?oor surface over which 30, to spread said surface dressing onto the floor surface
over which the apparatus is moved.
the frame structure is moved, eccentric means to advance
9. The apparatus recited in claim 8, in which the auxil
said web step-by-step during operation of the apparatus,
iary frame and rolls are removable bodily from the frame
a tank for ?uid carried by said frame structure, capillary
structure.
means mounted ?rmly in said tank and projecting out-ward
ly thereof for receiving ?uid from said tank, a rotatable 35
References Cited in the ?le of this patent
brush for spreading the ?uid onto the ?oor surface over
which the frame structure is being moved, and means in
UNITED STATES PATENTS
contact with said capillary means and brush for convey
1,384,124
Drozdz ______________ __ July 12, 1921
ing ?uid from said capillary means .to said brush.
Sharpless ______________ __ Apr. 3, 1956
6. Apparatus for cleaning and dressing a ?oor surface 40 2,740,238
2,810,149
Guelker ______________ __ Oct. 22, 1957
comprising, in combination, a frame structure, a roll of
3,017,648
Wilson et a1 ___________ __ Jan. 23, 1962
fabric carried in said frame structure having its Web
Ludwig et a1 ___________ __ July ‘10, 1962
3,042,950
trained over a back-up roll and disposed for wiping en
surface for spreading thejlane dressing onto the wiped
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