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Патент USA US2117840

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May 17,’ 1938-
Filed Jan
14, 1936
PatentedMay 17, 1938
' Leon E. Crew, Elmhurst, Del., assignor to Dela
ware Floor Products, Inc., Wilmington, Del., a
corporation of Delaware
Application January 14,v 1936, Serial No. 59,037
2 Claims. _ (Cl. 91,-—,51)
The present invention relates to the treatment
of relatively porous material made from wood
I Moreover, with the aid of my invention the
quantity of ?uid saturant supplied to and ab
pulp or the like in strips several feet in width and. ‘ sorbed by the base material may be subjected
of indeterminate length preparatory to applica
tion thereto of a colored decoration in the manu
to exact control and the extent of its penetration
facture ‘of hard surface ?oor coverings, or in
some instances during the application of color
ing matter to one surface thereof.
can thus be regulated so as to obtain the mos
satisfactory and economical results.
usual practice to-initially “saturate” a strip of
fecting penetration of the saturating ?uid into
the porous material used as a base by passing it
through a body of a ‘suitable saturating ?uid, and
maintaining the remainder of the strip substan
thereinto from the surface to which it is applied
It is therefore a principal object of the inven
m the production of hard surface ?oor cover- ' tion to provide means for progressively saturat
ing one face of a strip of porous material and ef
10 ings of certain types, it has heretofore been the
tor-then subject it to the action of squeeze rollers
to‘force the ?uid into the base as well as to re—
'.»move11 any excess of the ?uid therefrom. The
saturated base, while it is still wet with the ?uid,
then passes to a printing machine or the like op
erative to ‘apply to one face thereof the desired
ornamentation, the miscibility of the
printing dyes or other coloring matter with the
saturating ?uid facilitating‘ the penetration of
the former into the base for an appreciable depth
from the printed face.
This practice is open‘ to certain objections,
among which, is the'tendency of the base when its
opposite faces‘ are wet with the saturating ?uid
to stick to the printing machine'lnstead of mov
ing freely therethroughythe tendency of quan
30 tities of the saturating fluid to adhere to the bed
of the machine through contact therewith of the
back face of the material while wet with the
?uid, thus necessitating frequent cleaning to pre
vent interference with satisfactory operation of
the machine; and the absorption, because of pas
“ sage of the base through a body or the ?uid, of
larger quantities thereof than required for» best
results, the entire thickness of the base often be
coming completely saturated, although penetra
the strip to a desired depth from said face, while
tially free of the fluid.
Other objects, purposes and advantages of the 15
invention will hereinafter more fully appear or
will be understood from the following descrip
tion of apparatus constructed in accordance
therewith reference being had to the accompany
ing drawing,in which:
Fig. l is a more or less diagrammatic longi 20
tudinal section of the said apparatus;
Fig. 2 is a side elevation of a portion thereof
showing means for maintaining a body of the
saturating ?uid in contact with the surface of the
saturating roller;
Fig. 3 is a fragmentary top plan view of the’
apparatus shown in Fig. 2; and
Fig. 4 is a fragmentary side elevation of the
main driving vgears of the machine.
Like characters of reference are used through
out the drawing to designate the same parts.
In saturating one face of a strip of porous base
material with the aid of apparatus embodying
my invention, I ?rst preferably subject the strip 35
to mild heating as it is progressively drawn from
a roll or the like and then While it is still warm
continuously apply to one of its .faces a ?lm of
suitable saturating ?uid, desirably by transfer
4O tionof the ?uid thereinto for only a relatively
small distance from one face is all that is required
for proper ornamentation of that face.
ring the ?uid to the'strip from a moving surface 40
to which the ?uid is supplied in a continuous,
substantially uniform ?lm. The surface carry
ing said ?lm is preferably moved at a somewhat
My invention is therefore designedto provide
improved apparatus for effectively saturating or ‘ higher speed than the strip at the point of en
impregnating one face of a porous base mate
rial to a desired depth sufficient to assure suit
able penetration of coloring matter thereinto
while maintaining'the opposite face and the ma
terial lying adjacent theretofree or virtually free
of saturating ?uid and thus substantially in its
normal or dry state, whereby contact of appre
ciable quantities of the saturating‘ ?uid with the
bed of the machine is prevented so it can be kept
gagement therebetween so that an adequate sup
ply of the ?uid to the strip is assured, and the
latter is then subjected to severe rolling pressure
whereby the ?uid is caused to penetrate into the
pores of the strip for an appreciable depth below
the face to which it was applied.
Thereafter, it ;
clean, dry and free from contamination thereby
the strip is to be printed, it is at once led to ‘the
printing machine while its ?uid impregnated face
is still wet and printing of such face isv then car
ried out in the usual way and followed by drying
at all times.
and other customary steps.
In manufacturing solid color floor coverings,
however; I have found the printing step may be
dispensed with entirely when the saturating fluid
applied to the strip in‘the manner just described
.is ?rst suitably colored with the necessary pig
ments as the strip may be dried immediately
after being subjected to rolling pressure to effect
the proper degree of penetration of the colored
saturant, or after the front face is saturated
'with thelatter the back face may be saturated
with uncolored saturant or other. suitable ?uid
' before the strip is ?nally'dried.
I shall now refer more particularly to the ma
quired and .none is shown in the drawing; it is
preferable, however, that such mechanism be of
a character permitting the gears IT, [I by which
one roll is driven from the other to be main
tained continuously in mesh at any adjustment ‘
thereof likely to be demanded by operating con
Suitable roll driving mechanism (not shown)
is connected, desirably through a pinion IS, with
gear I‘! for driving roll .l5, for example. at a 10
peripheral’speed of 26 feet per minute and the
gear l8,‘ meshing with gear I'I, thus drives roll
‘l6 at the same speed, the combined action of
chine shown in the drawing which is constructedv .thfese rollsvon the strip moving it through the
15 in accordance with the invention and eminently I machineat. a corresponding linear speed. ‘
suitable for the performance ‘of the operations
Whenthe strip'is thus driven by the squeeze
I have mentioned, it being understood, however, _ rolls at a linear speed of approximately 26 feet
that for clearness of illustration ‘certain me
per‘ minute it "is' ‘preferable that the saturating
chanical elements generally employed in, ma
‘roller -1 be driven, by mechanism now to be de
20 chines of this general character, such for ex
scribedhat a peripheral speed of ‘approximately
ample as journal bearings and-supports'there 1'31; feet per minute, but- when other". speeds are 20
for, driving mechanism and other'well‘ known j employed it'is ‘desirable ‘that approximately this
devices have‘been omitted as-they maybe of any. vratio, 26:31,‘ be fairly closely ‘adhered v‘to, solas
.‘desired character‘ or type suitable for their in-} ‘to'm‘ain-tain ‘a ‘sm‘all'body of the saturating ?uid
25 tended functions‘; it will thus be understood their
speci?c form and/orv arrangement 'are‘ merely 'f‘in contactv with roller "I and thev adjaf’cen't face 25
matters of convenience or preference.
The said machine which may best be described
withreference to the progress of a strip there
30 through while being subjected to the aforesaid
‘ of ‘the strip just in‘ advance of the area of most
intimate engagement therebetween whereby ‘an
adequate supply of: saturating ?uid to that face
is assured.
' For driving roller 1 at the desired‘ speed, the
treatment, comprises a pair of horizontally dis ‘ shaft of roll I5 is provided with a sprbcket 20 for 30
posed idle rollers I, 2 beneath which the strip S the reception ofa chain “running over another
is conducted in its passage from a roll or other sprocket 22 carried by the shaft of roller, 1, and
suitable source (not shown). ‘ Beneath ,the por
the size vof these ‘sprockets is-preferably propor
35 tion of the strip extending between these idle
tioned so as to maintain approximately the ratio
rollers is disposed a shield 3 open at the top and 26:31 between the peripheral speeds of the roll
closely underlying the strip through which ex
ers for the reasons to which reference has been
tend a plurality of steam pipes l or other heating
means effective to warm the strip, preferably to
a temperature of about 100° F., as it passes
The shaft of the other squeeze roll I‘ is pro
vided with a somewhat similar sprocket 23 for the
thereover. The warmed strip thereafter passes’ vvreception of av chain 24 which chain vdrives a
upwardly over an idle roller 5 and thence an
larger sprocket 25 on the shaft of a' drum 25 above
gularly rearwardly and downwardly beneath an and forwardly of the squeeze rolls. The strip,
idle roller 6 and rearwardly and upwardly over _a after its passage between the latter, reverses its
saturating roller 1 desirably about 81/2" in di
direction of travel and passes upwardly and for
ameter and in length at least equal to the width wardly over this drum, ‘from which it may be fed
of the strip. This positioning of these several directly to ‘the printing machine or other mecha
rollers as well as that of others hereinafter more nism (not shown) by which it is to be further
speci?callymentioned,. aifords the desired sup
operated upon.
port to the strip and permits the machine to be
The pressure to which the strip is subjected by
constructed as a compact unit, but it will be un
the squeeze rolls forces the saturating ?uid well
derstood they may be otherwise arranged if de
into its pores to the desired depth from the face
' sired as long as they are so positioned as to prop
to which it is applied, but preferably not so far
erly perform their respective functions.
as to wet the opposite face of the strip, the pres
A trough [0 supported beneath the‘ saturating sure exerted by the>squeeze rolls being suitably .
roller 1 maintains a body of satu-rating'?uid F regulated to effect this result.
in contact with the lower ‘portion of ‘this roller,
The saturating ?uids usually‘ employed are '
while an adjustable doctor- blade H extends, often slightly tacky after application to the strip,
across the face of the roller between the ?uid F and some of the ?uid may adhere to squeeze roll
60 'and the strip S at its point of contact with the
l5 as the strip passes thereover. A cleaning blade
roller thereby permitting accurate control of 21 is therefore so positioned as to bear against 00
the thickness of the ?lm of ?uid carried by the the roll surface and continuously scrape there
rollerto the strip during ‘its rotation in engage
from any ?uid or other material adhering thereto.
ment therewith.
Mention has been made of means for supplying
From the saturating roller 1, the strip passes the saturating ?uid to saturating roller ‘I, com
‘angularly rearwardly and downwardly beneath prising a trough III. This trough is desirably of
_ ‘an idle roller “.and thence between a pair of
squeeze rolls l5, l6 operating at eqiial rotational
speed determinative of the linear speed of the
slightly greater length than roller 1 and may be ~
substantially rectangular in horizontal section.
As best shown in Figs- 2 and 3, adjacent each end
70 strip and exerting a‘ controlled rolling pressure - of the trough is a pair of vertically .and horizon
thereon. Since devices of many di?erent types
are known for regulating the pressure exerted
by pressure rollsiofthis general‘character on a
strip passing between them, no speci?c descrip
tally offset rollers 30, 3| adapted to support the
trough in a substantially horizontal position be
neath roller 1 upon inclined rails 32, one rail
. being disposed at each side of the machine and
76 tion of mechanism suitable therefor is herein i'e- ’ extending downwardly and rearwardly from the
vicinity of roller 1 to permit the trough to be
lowered along the rails to the rear'of the machine
when it is desired to remove it therefrom for
cleaning or the like. A latch 33 may be provided
adjacent each end of the trough to engage the“
upper end of the corresponding rail and releas
ably maintain the trough in ?uid feeding relation
to roller 1.
While I have herein described certain mecha
10 nism adapted for the purposes of my invention
and constructed in accordance therewith, it will
be understood that changes and modifications in
the form, construction and arrangement of the
several elements of the said mechanism and in
15 their mode of operation will readily occur to those
skilled‘in the art and may be made if desired
Without departing from the spirit and scope of
the invention as de?ned in the appended claims.
Having thus described my invention, I claim
20 and desire to protect by Letters Patent of the
United States:
1. In a machine of the'class described, a satu
rating roller rotatable on a horizontal axis, a
trough disposed beneath said roller adapted to
contain a ?uid in contact with the roller surface,
a pair of inclined rails respectively disposed ad- ,
jacent opposite ends of the trough, means pro
jecting outwardly from the ends of the trough
adapted to movably engage said rails to support
the trough therefrom, and releasable means for
restraining said last mentioned means from
movement relatively to the rails when the trough
is in position to eifect contact between its con- ,
_tained ?uid and the saturating roller.
2. In a machine for face saturating a strip of
?oor covering felt, a saturating roller rotatable
on a horizontal axis and adapted to engage one
face of the moving strip, a trough beneath the
roller adapted to maintain saturating ?uid in 15
contact with the roller surface, a pair of inclined
parallel rails disposed adjacent the ends of the
trough, means movable along therails for sup
porting the trough therefrom and releasable
means for maintaining the trough in ?xed posi 20
tion relatively to the roller to maintain said ?uid
in contact therewith.
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