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Патент USA US3090360

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May 21, 1963
J. B. COYNE
3,090,351
APPARATUS FOR SMOOTHING A comma on
A SURFACE OF LEATHER OR THE LIKE
Filed June 11, 1958
:5 Sheefs-Sheetl
INVENTOR
John 5’. Jayne
Nfay 21, 1963
Filed June 11, 1958
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RN A COATING ON
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ATTORNEYS
May 21, 1963
3,090,351
J. B. COYNE
APPARATUS FOR SMOOTHING A COATING ON
A SURFACE OF LEATHER OR THE LIKE
Filed June 11, 1958
5 Sheets-Sheet 3
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INVENTOR
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ATTORNEYS
United States Patent 0
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1
3,090,351
APPARATUS FOR SMOOTHING A COATING (3N A
SURFACE OF LEATHER OR THE LIKE
John B. Coyne, 119 Foster St., Peabody, Mass.
Filed June 11, 1958, Ser. No. 741,338
4 Claims. (Cl. 118—223)
3 ,‘09 0,35 1'
Patented May 21, 1963
2
the applicator belts taken generally along line 2—2 of
FIG. 1;
FIG. 3 is a schematic sectional view taken along line
3—3 of FIG. 1 showing the means for accomplishing the
wedging action to apply the coating from the applicator
belt to the work;
FIG. 4 is an elevational view of one applicator assem
This invention relates to improvements in coating ap~
bly in its commercial form and in position above a work
paratus. More particularly this invention relates to coat
piece conveyor;
ing apparatus of the type wherein the work is contacted 10
FIG. 5 is an enlarged sectional view taken along line
by means of endless belts for applying or smoothing a
5-5 of FIG. 4;
coating material.
FIG. 6 is an enlarged detailed sectional view taken
While this invention will be described as it is presently
along line 6--6 of FIG. 4 and showing the means for
being used and in its preferred embodiment in the ?nish
applying the wedging action to transfer the coating from
ing or coating of leather, it will be readily apparent to 15 the applicator to the work;
those skilled in the art that the invention is applicable
FIG. 7 is an end elevation view of a portion of the
to many other trades which require a similar coating
apparatus shown in FIG. 4 illustrating the tilting adjust
or smoothing operation.
ment of the applicator assembly.
In the ?nishing of leather in the leather trade it is
In genenal, this invention contemplates providing a
common practice to employ 1a seasoning machine to ap
ply a ?nish, stain, or pigment to the surface of the leather.
This is more or less a spatter or uneven coating and
?nish or coating to leather or similar workpieces which
may be moved past the coating applicators on a conveyor
or the like. The coating ‘applicators consist of a pair of
necessitates a leveling off or smoothing of the ?nish that
endless applicator belts having the coating material ap
has been applied. In the present state of the art this
plied thereto. The applicator belts are skewed with re~
smoothing or leveling off is done on a conveyor directly 25 spect to the direction of travel of the conveyor and the
behind the seasoning machine which applies the ?nish.
amount of skew Iand the speed of the conveyor and ap
The smoothing, streaking off or leveling off, 'as this op—
plicator belts are chosen such that the component of mo
eration is termed in the art, is done at present by two
tion between the applicator belt and the work produces
or more operators who manually employ swabs which
a resultant wiping action which will be at substantially
they sweep across the leather to even the ?nish and wipe 30 right angles to the direction of the work. Weight means
off the excess coating material. It is the principal object
are applied on the inside of the applicator belt to assist in
of this invention to provide a ?nishing machine espe~
applying the ?nishing material to the work.
cially adapted to ?nishing of leather which eliminates
Referring to the drawings, FIGS. 1, 2, and 3 illustrate
the need for a seasoning machine and the manual opera
the principal inventive concepts in schematic form. As
tion of streaking off on the conveyor.
35
shown in FIG. 1, suitable pieces of work such as leather
It is a further object of this invention to provide an
10 are supported on a moving conveyor belt 12 overlying
improved coating apparatus for coating leather or the
a rigid support surface 14. The conveyor belt 12. is mov
like in which the work is moved past skewed coating ap
ing in the direction of the arrow CM.
plicators and the speed and direction of movement of
A pair of endless belt applicators 16 are identical, each
the work and applicators is such that the coating will 40 controlling
the streaking-off and coating on its own side
of the conveyor 12. The endless belts 16 are prefer
thereof.
ably constructed of a moisture-resistant canvass on the
It is an [additional object of this invention to provide
outside of which is stitched a plush cloth having a soft
a coating apparatus of the endless bel-t ‘applicator type
?ber. Each endless applicator belt 16 is trained over a
wherein there are two endless belt applicators which are 45
driving pulley l8 ‘and a driven pulley 20‘. The driving pul
driven such that the belts will travel from :the center of
ley 18 may be driven at a variable speed by conventional
the work toward the outside edges thereof and the coat
means from a suitable motor 22. The coating material
ing will be applied from the center and smoothed oif
may
be applied by suitable means such as a spray nozzle
toward the edges of the work. This action will prevent
24 to the top surface of the belt ‘as shown in FIGS. 1
the edges of the Work from curling up as the applicator 50 and
2.
belts are traveling from the center outwards rather than
The endless plush belt ‘applicators 16 are positioned
vice versa.
in such a manner that they are skewed with respect to
It is an additional object of this invention to provide
the direction of motion of the conveyor 12, this is shown
an improved means for transferring the coating from
‘the applicator to the work by means of a wedging action 55 schematically in FIG. 1. The velocity of the belts is
indicated by the vector ‘arrow Av in FIG. 1 is chosen
between the work and the coating applicator belt. This
and adjusted such that when the work conveyor is mov
improved means further has adjustments whereby the
ing
at a velocity Cv as indicated in the arrow in FIG.
wedging act-ion may be varied in accordance with various
1, the resultant wiping force will be in the direction of
requirements.
arrow WV which is at a right angle to the direction of
Other objects and advantages of this invention will be
the conveyor. This arrangement produces excellent re
pointed out in the following detailed description taken in
sults
in wiping oli or streaking off the ?nish which is
connection with the accompanying drawings, which dis
applied [to the surface of the wonk 10. As there are two
close, by way of example, the principle of this invention
belt applicators I16 and the coating material is applied
and the best mode which has been contemplated of ap 65 from the center of the work to the outside there will be
be wiped onto the work perpendicular to the movement
plying that principle.
In the drawings:
no rolling up of the edges of the work as would be the
case if the application was applied from the outside of
FIG. 1 is a schematic plan view showing the skewed
the work toward the center.
endless belt applicators and the vectors thereon represent~
Although the apparatus of this invention is described.
ing the components of motion ‘of the work and the ap~ 70 in the preferred embodiment as applying as well as streak
plicator belts;
ing oii the coating material, the apparatus can be used
FIG. 2 is a schematic sectional view showing one of
as an attachment to a conventional seasoning machine
a
A
3,090,351
3
which applies an uneven coating for only smoothing or
streaking o? this uneven coating. When used in such a
manner, the spray nozzle 24 could ‘be omitted.
The work 10 travels on the conveyor 12 and passes be
neath the applicator belts 16 and the application of the
coating or ?nish is helped by the wedging action as illus
trated in FIG. 3. A plurality of weights 216 are positioned
A
A suitable coating composition or finishing material
may 'be applied by any suitable means. In the preferred
embodiment this coating is applied by nozzle 24 which
is positioned at the end of a conduit 86 having a suitable
control valve 88 therein. This conduit may be clamped
by means of a clamp 90 to the support arms 34 and 36.
The invention in its broadest sense is not limited to
V the material to which the coating is applied, the particu~
within each of the endless belts 16 in the manner shown
lar conveyor for supporting the work, or the particular
in FIG. 3 to apply a pressure between the belts and the
work. With the arrangements described above no hand 10 described spray for applying the coating to the top of
streaking or leveling is necessary in the ?nishing of leather
work.
The commercial embodiment of each of the applicators
the applicator belt. For example, the coating may be
applied to the work prior to the applicator belts and the
applicator belts may be utilized only to smooth out the
coating material. Thus, the disclosed apparatus is for
is shown in detail in FIGS. 4 through 7 to enable one
skilled in the art to practice this invention. It will be 15 the purposes of illustration only to enable one skilled in
the art to practice the invention and the invention is not
appreciated that only one of the applicators is shown
to be limited to the speci?c embodiment disclosed but
since they are both identical and that the details of the
only by the spirit and scope of the appended claims
conveyor 12 and support 14 are not shown as they form
wherein applicant is entitled ‘to a reasonable range of
no integral part of this invention. Referring to FIG. 4,
equivalents.
an upright standard 28 is supported in a suitable base 30‘
What is claimed is:
and has a cap attachment 32 fastened thereto. This cap
1. An apparatus for smoothing a coating on a surface
attachment supports the applicator belt assembly by
of leather or the like while said leather is traveling in a
means of horizontal tubular support 34 and connecting
single direction at a constant speed on a generally hori
support 36.
The applicator belt assembly is attached to an elon 25 zontal conveyor, said apparatus comprising; at least one
pair of upright standards, one of said pair of standards
gated channel iron 38 which in turn is carried by the hori
disposed on each side of said conveyor, an endless belt
zontal support 34 by suitable clamps 48. The endless
assembly including an endless plush belt carried by each
belt 16 which is the applicator belt is trained over idler
of said standards, means for mounting the endless belt as
pulley 20 and driving pulley 18 as ‘described in connec
tion with FIG. 2. Idler pulley 20 is rotatably supported 30 sembly on said standards with said endless belts extending
generally at right angles to the vertical axis of said stand
in bracket 42 such that it may be adjusted lengthwise to
ards and above said moving conveyor and said leather,
tighten or loosen the applicator belt. The driven pulley
18 is 'driven from electric motor 22 through a variable
means on said standards to adjust the direction of travel
of said belts with respect to the direction of travel of
As shown in FIG. 5, the pulley 20 is supported on a 35 said conveyor such that the longitudinal axis of said belts
is positioned at different angles with respect to the direc
movable bracket 42 which is ‘biased by spring 48 to a
tion of travel of said conveyor, and both of said belts ex
position of applying tension upon the belt 16. This force
tending across the width of the conveyor, variable speed
which may be applied is adjustable by means of handle
means for rotating the belts on said belt assemblies at a
50 and may be secured in the adjusted position by a suit
speed transmission housed within housing 44.
able locking means 46.
predetermined speed in opposite directions, the compo
nent of relative movement of said belts and said conveyor
being at right angles to the direction of movement of said
shown schematically in FIG. 3 are shown in detail in
leather and extending from the center of said leather to
FIG. 6. As can be seen in FIG. 6, -a plurality of brackets
ward the side edges thereof, Weighted wedging devices
52 are secured to supporting channel 38 and these brackets
carry a rod 54 pivotally mounted therein. Rod 54 in turn 45 positioned within each of said ‘belts, means for applying
said weighted wedging devices to said belts to cause a
supports a pivotally movable arm 56 which arm carries
wedging action ‘between the work and the bottom surface
a pressure applying member 58 ‘having a pressure dis—
of the belt in the direction of travel of the work, and a
tributing plate 60 connected thereto. An upright screw
guard device positioned beside said belt and operable to
62 is threadedly attached to bracket 56 and suitable
weights 64 may be positioned on screw 62 to bias the 50 prevent coating material from splattering inside said end
less belt.
pressure applying plate 69 against the upper edge of the
2. Apparatus for smoothing va coating on the surface
applicator belt 16. The extent of movement of the
of a leather work piece or the like traveling in a single
weight applying bracket 56 is limited by means of a stop
direction at a constant speed on a horizontal conveyor,
nut 66 tbreadedly attached to stud 68. A guard 70 is
provided to prevent any of the coating on the surface 55 said apparatus comprising; at least one pair of upright
standards disposed at opposite sides of said conveyor, an
of the Work from splattering inside the endless belt 16.
endless belt assembly including an endless plush belt car
An adjusting means is provided for adjusting the angle
ried by each of said standards with the longitudinal axis
of the surface of the ‘belt 16 and the entire applicator as—
The means for applying the wedging action by a weight,
of said ‘belt being generally at right angles to the vertical
sembly With respect to the horizontal axis of support
rod 34. This adjustment means comprises a clamp 72 60 axis ‘of said standards, means on each of said standards
to adjust the angle of the belt assembly and hence the
secured to the cap 32 of the upright standard and having
direction of travel of said belts with respect to the direc
9. depending portion 74 with an adjusting slot 76 therein.
tion of travel of said conveyor, means connecting said
A suitable handle 78 is pivotally attached to the clamp
standard and belt assembly for adjusting the angle of con
72 and this handle actuates an adjustable rod 80 which
in turn is pivotably attached to a horizontal connecting 65 tact between said endless plush belt and said leather work
piece by adjusting the angle of support of said belt assem
rod 82. Rod 82 is secured Within motor supporting
bly upon said support standard, an electric drive motor
bracket 84. Therefore, by moving handle ‘78 downward
carried by each of said standards and variable speed drive
V as viewed in FIG. 7" after the clamps 40 have been loos
means connecting said motor to said belt for driving said
ened the rod 80 will move downward and the entire ap
plicator belt assembly will pivot about horizontal support 70 belt at a predetermined rate so that the component of
relative movement of said belts and conveyor will be at
34 to adjust the surface of the belt 16 to various angular
right angles to the direction of movement of work and
positions.
'
will extend from the center of said work toward the edges
The cap 32 which is adjustably clamped to upright 28
thereof.
provides the means for adjusting the angular direction
3. An apparatus for smoothing a coating on a planar
of travel of the belt 16 with respect to the conveyor 12.
5
3,090,351
surface of a piece of leather or the like, traveling in a
single direction at a constant speed on a horizontal con
veyor, the apparatus comprising; a pair of separate end
less belt assemblies, including belts constructed of ma
terial to smooth the coating on to the leather surface,
means for supporting each of the belt assemblies over
the conveyor with the bottom run of the belt in contact
with the surface of the leather on the conveyor, means
for adjusting the angle of support of the belt assemblies
6
the endless belt assemblies and being constructed of plush
material to smooth the coating on the leather surface,
clamp means securing the endless belt assemblies to the
upright standards allowing for adjusting the angle of
support of the belt assemblies relative to the conveyor,
the belt assemblies being adjusted so that they extend
at angles and in opposite directions from the center of
the conveyor and contact the entire width of the conveyor,
a motor operatively connected to a variable transmission
on their support means relative to the direction of move 10 which in turn is connected to a belt drive pulley for driv
ment of the conveyor so that the belt assemblies extend
ing each of the belts at a predetermined speed and in a
at angles and in opposite directions from the center of
direction determined by the angle of support of the belt
the conveyor and contact the entire width of the conveyor,
assembly, such that the lower run of each belt moves
variable speed endless belt means for driving each of the
from the center of the conveyor outward at the predeter
belts at a predetermined speed and in a direction such 15 mined speed of the belt with regard to the angle of sup
that the lower run of each belt moves from the center
port and the speed of the conveyor being such that the
of the conveyor outward, the speed of the belt with re
resultant wiping and smoothing action will be at right
gard to the angle of support and the speed of the conveyor
angles to the direction of the conveyor, and a plurality
being such that the resultant wiping and smoothing action
of connected weights bearing against the inside of the
is at right angles to the direction of the conveyor, the 20 lower run of belts at the rear portion thereof with regard
plane of the lower run of each belt being normally at
to the direction of movement of the conveyor for biasing
an angle to the plane of the leather on the conveyor, and
the belt against the leather on the conveyor and creating
adjustable biasing means including a plurality of weights
a wedging action in the direction of travel of the work.
inside each belt bearing against a rearward portion of
References Cited in the ?le of this patent
the lower run thereof with respect to the direction of 25
the movement of the conveyor for holding the rearward
UNITED STATES PATENTS
portion of the ‘belt against the leather and creating a
771,196
Wimmer ____________ __ Sept. 27, 1904
wedging action between the lower run of the belt and the
1,140,642
Weingartner _________ __ May 25, 1915
leather.
Weinheim ___________ __ June 10, 1919
4. An apparatus for smoothing a coating on a planar 30 1,306,649
1,535,752
Upham et a1 __________ __ Apr. 28, 1925
surface of a piece of leather or the like traveling in a
singel direction at a constant speed on a horizontal con—
veyor, the apparatus comprising; a pair of upright stand
ards, one on each side of the conveyor, a pair of separate
endless belt assemblies, one supported from each of said 35
standards and each extending inwardly over the conveyor
with the bottom run of the belt adapted to‘ contact the
surface of the leather on the conveyor, belts included in
1,666,347
1,704,196
1,860,132
1,929,896
P-latt _______________ __ Apr. 17,
Jones ________________ __ Mar. 5,
Broadston ____________ __ May 24,
Merritt et a1. _________ __ Oct. 10,
1928
1929
1932
1933
1,983,180
2,285,041
vMcCarthy ___________ __ Dec. 4,
Mayer et al. _________ __ June 2,
Faller _______________ __ Nov. 13,
Mains ______________ __ Jan. 19,
1934
1942
2,574,633
3,039,429
1951
1962
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