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Патент USA US2118070

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May 24, >19.38.
J. H. CON NOR
2,118,070
SLI'GKER TooL
Filed Sept. 5, 1935
lIL
2 Sheets-Sheet 2
`2,118,070
Patented May 24, 1938
UNITED STATES> PATENT OFFICE
2,118,070
SLICKER TOOL
John H. Connor, Newton, Mass., assigner to The
Tanning Process Company, Boston, Mass., a
corporation of Massachusetts
Application September 5,`1935, serial No. 39,313
8 Claims. (ci. 14a-_13)
vThis invention relates to tools for treating
hides, skins and leather, and is illustrated as em
bodied in a slicker for putting-out operations
upon hides and skins and the simultaneous re
moval of liquid material therefrom.
-
Hand slickers have been used by many genera
tions of tanners in manually performing putting
out operations upon hides and skins while the
latter» rested upon a supporting surface. Such
a hand slicker commonly comprises a Wooden
bar, which serves as a handle, and a blade set
into a groove in the bar. Upon moving such a
tool over the surface of a wet hide or skin
with the operative edge of the blade performing
a scraping operation under considerable pressure
upon the hide or skin, watery material is ex
pressed from the work piece and the latter is also
spread out and stretched out to a considerable
extent depending on the pressure employed.
While much of the >watery 4material expressed
from the Work piece is carried along with the
bladed tool to and beyond the 4margins of the
hide or skin being treated, ateach trip of the
tool from a point inside the. periphery of the
work piece to and beyond the margins thereof, a
very considerable amount of the liquid expressed
by the tool escapes around each end thereof dur
ing each stroke of the tool.- Hence, there is ren
dered necessary a considerable overlapping of the
30 paths made by the tool during its strokes over
the work. `This adds a great deal to the labor
and time involved in hand slicking operations.
Furthermore it has been necessary heretofore
to provide a trough around the Work support toA
hesive and the fastenings had to be subsequently
removed. Furthermore, the operations were time
consuming.
It is an object of this invention to provide for
more eiilcient removal of the watery contents of 5
the skins during putting-out operations. It is a
further object of the invention to minimize the
requirements necessary to maintain the skin on
the drying board during drying operations. In
general, it is an object of the invention to facili
tate putting-out operations and to improve upon
the results `attained from such operation upon
hides and skins.
.
To these ends, and in accordance with an im
portant feature of the invention, there is pro 15
vided an improved slicker tool having associated
therewith a pneumatic suction means for remov
ing from the surface of the skin watery material
expressed therefrom by the slicker tool, said suc
tion means operating to remove the expressed liq
uid substantially as rapidly as it appears >on the
vsurface of the skin in advance of the slicker blade.`
By this novel arrangement, removal of the ex
pressed liquid is assured thus minimizing the
necessary overlap of the paths of the tool on the N) 5
work piece with consequent saving in both time
and labor. Conveniently, the new tool comprises .
a single >slicker blade in association with pneu- ‘
matic suction means having nozzle portions upon
or adjacent to the opposite faces of the slicker 30
blade and so controlled that the suction means
is operative only'on that face of the tool against
which the water piles up during movement of
receive and carry oii‘ the watery material ex
the tool over the hide or skin in putting-out oper
ations. In one embodiment of the invention, a
pressed from the skins during the putting-out
operation, thus making it more diiîicult for the
wall of each nozzle is movable to maintain con
tact with the hide or skin, thus insuring a maxi
- operator to reach the central portions of the hide
or skin being treated.
mum suction eiîect, while at the same time per
Commonly, in putting-out operations with the
40
hand slicker, the skin is put out upon a fiat,
portable Work support;> or board. In certain cases,
and according to methods heretofore practiced,
the skin was dipped preliminarily in an adhesive
45 solution or adhesive was placed upon the surface
of the board before the skin was placed thereon,
the purpose in either case being to have the skin
adhere to the board during the drying operation
which followed. In other cases no adhesive was
50 used but the skin was tacked or secured to the
board by other types of fastenings inserted in
considerable‘numbers around the marginal por
tions of the skin. Both of these methods hereto
_fore commonly employed in securing the skin to
55 the board were objectionable since both the ad
mitting variation in the inclination of the slicker
blade with respect to the work, thus rendering
the whole tool most adaptable to the require
ments of the work being treated.
In another embodiment of the invention, there
are provided two slicker blades substantially 'co
extensive and with their operative edges in the
same plane but spaced from each other to form ,
the nozzle portion of a pneumatic suction de
' vice. This embodiment has the advantage of
simplicity of construction.
'
.
It has been found that the provision of pneu 50
matic means for removing the watery material
substantially simultaneously with its expression
from the hide or skin results inthe removal of
an increased amount of the watery material from
the hide or skin without any corresponding ef
2
2,118,070
fort on the part of the operator. Furthermore, it
piece I6 to which the blade 6 is also rigidly con
is found that the skin adheres more firmly to the
surface of the drying board as a result of putting
out operations with this improved tool and hence
few, if any, fastenings need to be inserted to hold
the skin upon the drying board during drying
nected.4 -Slidably mounted in a socket I8 in the
lower part of the member I4 is a movable nozzle
operations.
_
\,
These and other important features of >the in
vention and novel combinations of parts will now
10 be described in detail in the specification and
then pointed out more particularly in the a
pended claims.
.
In the drawings,
Fig. 1 is ~a perspective view of a‘slicker tool
15 embodying the invention;
Figl` 2 is a sectional view along the line II-II
in Fig. 1;
Fig. -3 is a sectional perspective view of another
embodiment of the invention;
member 20 yieldingly held in its projected posi
tion by a plurality of springs one of which is
shown at 22. For preventing the nozzle member
20 from being displaced from the socket I8 there
is provided a plurality of pins, such as that shown
at 24, secured to the movable nozzle member 20,
the saidpins being movable each within a. slot 26, 10
which slot predetermines the range of movements
of the _ nozzle member 20.
Preferably and as
shown, each nozzle member 20, 20a is provided
with slots 2l to facilitate the entrance of air into
the lnozzle to carry the liquid away from the 15
blade 6.
'
Extending upwardly from the` back member l
I6 of the tool, at the middle point of said back
member, is a rectangular tube member 30 hav
Fig. 4 is a front elevational view of still another ` ing a circular extension for connection to the 20
20
flexible tube which as described above may also
~embodiment of the invention;
Fig. 5 is an end view of the tool shown in Fig. 4; be connected to an air pump, said member 30'
having pivoted therein at 32 a gravity-operated
and
Fig. 6 is a sectional view »taken along the line valve member 34 which is substantially wedge
25 VI-VI of Fig. 4 looking in the direction of the shaped in cross section and which has ,a curved
lower edge at 36 adapted to cover selectively one
arrows.
'
air passageway 38 or the other 40. It is shown
In the illustrated embodiments of the inven
covering the air passageway 38 for the reason
tion, which include a slicker tool designed par
ticularly for performing putting-out operations that the upper end of the tool is tipped or in
30 upon hides and` skins, there is-provided suction clined toward the observer which is the position
means of any well-known type, such as an air the tool occupies while it is being shoved over
pump (not shown) from which leads a flexible the surface of the work in a direction away from
tube. An intermediate portion of the tube is the operator. If now the tool be tipped in such
supported at a point considerably above and in manner that the upper end is inclined away fro‘m
35 front of the operator as he stands at a table or the operator, the valve member 34 will swing to 35
other support for the pieces of work undergoing a position to cover the air passageway 4I). In
treatment by a tool which puts out hides and that case the tool is positioned for movement to
skins and removes watery material therefrom. ward the operator, in which case the watery ma
As shown in Fig. 3, the said tool comprises a terial expressed from the work will be piled up
slicker
blade 6 having an operative edge portion ' in the mouth of the nozzle below the air passage 40
40
38. Hence this air passage should be open so
8 with slightly‘rounded edges at III which selec
that the air suction means will be effective to
tively contact the surface of the work during put
ting-out operations thereon. Commonly, during carry the watery material away from the work.
putting-out operations, the upper end of the In order that the valve member 34 may not be
45 slicker tool is pointing away from the operator interfered with in its movements by the tend 45
as the tool is being drawn over the work in move
ments toward the operator to express liquid ma.
terial> from the hide or skin being treated. In
other words the tool while in use is always at a
50 substantial inclination to the surface of the hide
or skin being treated. If the tool be moved away
` from the operator in a work treating operation,
the inclination of the tool is such that the upper
portion of the tool is inclined toward the opera
55 tor. In either case the watery material piles up
in front of that surface of the blade facing its
direction of movement. Commonly, quite a con
siderable amount of the liquid escapes around
each end of the blade or slicker tool as hereto
fore constructed. Accordingly, means is pro
vided in the illustrated construction for removing
the watery material simultaneously with its »ex
pression from the hide or skin.
.
The means referred to in the foregoing para
graph comprises suction means including one or
more nozzle members associated with the slicker
blade 6. As illustrated in Fig. 3, there is a noz
zle member I2 on each side of the'blade 6, each
nozzle member I2 having a surface of the blade 6
70 as one of its walls. Since the outer wall of each
nozzle is identical in construction it will be suili
cient to describe one of them,-although both walls
are clearly shown in Fig. 3 of the drawings. Each
outer wall. in the illustrated construction com
75 prises a memberl I4 rigidly connected to a back
ency to form a vacuum behind and above it,
there is Vprovided a port shown in dotted lines at
42 in Fig. 3. While only one port 42 is shown, it
may be found desirable to provide two or more
such ports for the entrance of air into the space 50
above and in back of the valve member 34.
While the tool shown in Fig. 3 may be made of
any suitable material, the outside walls I4 to
gether with the back member I6 are preferably
made of wood since they are the parts which 55
will be grasped by the hands of the operator dur
ing manipulation of the tool in putting-out op
erations upon the work . pieces.
To facilitate
grasping by the hands of the operator to exert
equal pressure on the tool on the opposite side 60
of the member 30, the members I4 and I6 to
gether constitute a bar having upwardly facing
surfaces extending along lines parallel to the‘
operative edge of the blade 6. The members I4
and I6 may be in one piece, U-shaped in cross
section, or they may be made up of several pieces.
65
Preferably the blade 6 will be made up of light
metal, such as aluminum, and will be secured
within the U-shaped wooden member by meansv
of bolts 44 which pass through both the walls I4
and through a holder 46 for the blade 6, the said
bolts 44 also passing through spacing blocks 48
located between the inner surface `of the walls
I4 and the opposite surface of the holder mem- 75
3
2,118,070
ber I8. The movable nozzle members 20, 20a will
also be made of aluminum.
In operating- upon a hide or skin with» the
tool shown in Fig. 3, the upper part of th`e tool
will ordinarily be tipped away from the opera
tor, as already stated, so that. during movement
of the blade 8 over `the work in a scraping op
eration under substantial pressure, liquid will
collect at the mouth of the nozzle below the
passageway 38 (Fig. 3).` With the tool in the
position described, the gravity-operated valve
memberßd will be swung over to a position above
the passageway 4B, thus freeing thepassageway
38 for connectionwith .the tube leading to the
air Dump (not shown), and hence the liquid ma
terial will be drawn up away from the work con
tinuously during» movement of the blade over the
work. During such movement of the tool, the
movable nozzle member>20 will be in contact with
20 the surface of the work being held down in op
erative position by the springs 22 so that the
air suction means not only removes the liquidexpressed from the work but tends also to re
move other liquid on and near the surface of
25 the work, with the result that more liquid is
removed from the hide or skin than is commonly
removed as a result of slicking operations with
,the simple blade or slicker heretofore employed.
This is due in part to the fact that no liquid
30 escapes around the ends of the slicker tool, such
of the tool, the said channel 10 being enlarged
by upwardly sloping walls 'I2 >which direct the air
to am exit opening 14, at the middle of vthe mem
ber 64, intowhich is ñtted the tubular member 60.
While performing putting-out operations with
the tool shown in Figs. 1 and 2 it will be under
stood that either ofthe blades 50 maybe made
to contact a piece of work and that the other
blade' will be spaced from the work more or less
in accordance with the degree of inclination of
the tool with respect tothe work. Since the liquid
expressed from the hide or skin collects against
the surface of the blade in pressure contact with
the hide or skin it is clear that this liquid is lo
cated at the entrance to the nozzle and that it is, 15
therefore, in a position to be sucked up through
the nozzle and discharged through the flexible
pipe or tube by the airisuction means. Since both
of the blades 50 are identical in construction it is
clear that either blade may be used in move
ments of the tool toward or away from the oper
ator in putting-out operations on a given piece
oi work.
Another embodiment of the invention is shown
in Figs. ¿l and 5 of the drawingswherein the 25
sliclrer tool is shown to comprise a blade 80 and
two suction nozzles one upon each surface of the
blade 90, each nozzle comprising a nozzle member
82 spaced from the blade d@ which forms the
as commonly taires place during slicking opera
other wall of each nozzle. As shown, the lower 30
edge of the blade t@ is slightly rounded at its
tions with prior constructions. If now it is de
sired to perform a slicking operation on some
edges to provide a slicker tool which will not cut
into the surface of the work piece undergoing
portion of the hide or skin which the operator
35 may readily reach by shoving the tool in a direc
tion away from himself, the tool in such opera
tions is tipped in such manner that the upper
portion thereof is inclined toward the operator,
it being possible thus to position the tool on the
work by reason~ of the fact that the nozzle mem
ber Ziîi will yield upwardly against the pressure
of the light springs 22. During this movement
of the tool, the other movable nozzle member 2da
will maintain contact with the work and thus
insure the most effective operation of the suction
means in removing watery material expressed by
the blade t while it is being moved, as described
in a direction away from the operator.
In the embodiment of the invention shown in
50 Figs. 1 and 2, the tool comprises two parallel
slicker blades 5E whose lower operative edges 52
are substantially in the same plane and are
treatment. Furthermore, the lower portion of
each nozzle member 32 is bent inwardly at an 35
angle of about 30° to the vertical, as indicated in
Fig. 5, this inclined portion of the nozzle member
d2 being provided with a multiplicity of slots 84,
as clearly shown in Fig. 4. It will be found upon
test that the tool is so inclined to the surface of
the work piece during slicking operations thereon
that the inclined slot-carrying portion of the wall
B2 will contact the work, thus closing the slots
in said work contacting portion while the corre
sponding slots on the front of the blade, against 45
which the Water is piling up, are open, thus ren
dering _the suction means on that'side of the blade
operative to remove the liquid substantially at
the same rate that it is expressed from the hide
or skin. Positioned on opposite sides of the upper
end of the blade t@ are spacing blocks 8b (Fig.
4) through which pass bolts titl which also pass
somewhat rounded, as shown, to perform slicking
through the Walls il? and through the blade Sil
operations on hides or skins.
These blades 5@
to secure all of these parts iirmly in the desired
55 are spaced from each other by blocks 5d located
relation to each other. Upon inspection of Fig.
4, it will be observed that a member Qd, which
at their ends and by other spacing blocks, one
of which is shown at 56 in Fig. 2, thus providing
a passageway 5l for air and liquids expressed
from the worlr. In this construction the blades
60 5d constitute the walls of a nozzle member of
an air suction device comprising a fiexible tube
di? similar in all respects to the flexible tube here
tofore described as connected 'to an air pump or
other airisuction means.
The tube 5B is con
65 nected to a tubular member t@ inserted into the
upwardly facing wall 52 of a U-shaped wooden
member 6d within which the assembled blades
5@ are secured by bolts 5d, said member 6d serv
ing as a handle for manipulation of the tool,
70 and being constructed in a manner similar to _the
handle member iii, it of Fig. 3. Upon inspec
tion of Figs. 1 and 2, it will be noted that the
upper edges of the two blades Bil are spaced from
the wooden wall above by spacing blocks 68 thus
making an air channel 'l0 extending lengthwise
is also a handle member by which the slicker is
grasped by the hands of the operator, is hollowed
out to form a chamber 92 which constitutes an
extension of the air passageways of the nozzles. 60
Conveniently the member 9@ and the walls 82 are
formed as a single li-shaped light metal member,
the blade t@ being secured to the walls t2 in such
manner that its operative edge is parallel to the
upper edge of the handle member gli. Also. as
indicated in Fig. 4, a _tubular extension Si of the
member @il is drilled to provide a bore 96 which
communicates with chamber Q2 of the handle 90,
the extension Sill being adapted to receive slidably
thereon the end of a tube 98 which leads to a 70
suction apparatus such as an air pump < not
shown). It will be understood that the opening
at each end of the tool is closed by a spacing block
iw which fits in between the ends of the nozzle
members 82.
'
75
2,113,070
4
It is considered that this' embodiment of the
invention provides a slicking tool of one blade
which is especially simple in construction and
efficient in operation since there are no movable
parts and since one suction means is rendered
inoperative simply by the desired inclination of
the tool while performing a slicking operation
on the work. Upon tipping the tool over so that
it is inclined in the opposite direction the other
10 suction means becomes inoperativewhile that
suction means located on the advance surface
surface of said blade so that watery material may
be removed when the latter collects on either sur- ,
face of said blade near the operative edge there
of, and a gravity-operated valve device associ
ated with the suction means to close oil.' one noz
zle and to connect the other to the suction means
while the blade is operating on the surface of
the hide or skin at the desired inclinations
thereto. e
~
4. In a tool forV slicking out hides and skins,
a blade having a _slightly rounded edge portion
of the tool becomesoperative to take upliquid operative to spread out in extended condition
material expressed from the work >piece'and which . a hide or skin and concomitantly to express
collects in advance of the blade during movement watery material therefrom, such watery Ima
of the latter over thesurface of the work. While terial tending to pile up on the advance surface 15
the slotted portion of the nozzle wall oni the ad
vancing side of the blade is inclined away from
the surface of the work, it is still effective because
of the fact that" the liquid tends to-collect upony
20 that surface of the blade facing in the direction
of movement of the tool and because of the fact
that- the suction is such as to draw the waterymaterial up through the said slots whereby the
said watery material is disposed of substantially`>`
25 simultaneously with its expression from the hide
or skin undergoing treatment.
Having described my inventionfwhat I claim as
new and desire to secure by Letters Patent of the
United States is:
from the surface of the hide or skin, the nozzle
member being made up substantially of two sub
stantially parallel walls one of which is provided
by said blade, and the other wall of thevnozzle
member having a movable part provided with
slots to admit air to said nozzle member, and
spring means acting on said movable part to pro
ject the latter downwardly into contact’with the
hide or skin while the inclination of the tool to
the work is changed during treatment of the
latter.
‘
l. In a 'tool for slicking out hides and skins,
30
a blade having a slightly rounded edge portion
operative to spread out in extended condition
a hide or skin and concomitantly to express
watery material therefrom, such watery material
35 tending to pile up on the advance surface of said
blade, a handle member to hold said blade, said
handle member having its upwardly facing sur
face parallel to the operative edge of the blade
to facilitate the application of equal pressure on
the tool by both hands of the operator, said han
40
die member having also an opening therethrough
substantially at the longitudinal center of its up
wardly facing surface for connection to a pneu
matic suction means, the upwardly facing sur
face of the handle member being otherwise un
45 obstructed so that the hands of the operator may
readily grasp the handle'member effectively to
operate the tool, and pneumatic suction means
having a nozzle portion associated with said blade
to remove said watery material from the surface
50 of the hide or skin and from said blade, the noz
zle portion being made up substantially of two
parallel walls one of which is provided by said
blade, and the lower edge of the other wall hav
ing some or all portions thereof spaced a rela
55 tively small distance from the surface of the hide>
or skin at all times during slicking-out opera
tions of the tool.
of the blade, pneumatic suction means having a
nozzle member associated with said blade to re
move said watery material from the blade and
"
`
'
5. In a tool for slicking out hides and skins, 30
a blade having an edge portion operative to y
spread out in extended condition a hide or skin
an‘d concomitantly to express watery material
therefrom, pneumatic suction means having a
nozzle member located on a surface of the blade 35
in position to remove watery material expressed
from the surface of the hide or skin by said
blade, said nozzle member having a movable wall
with a slotted edge portion to admit air to said
nozzle member, substantially parallel with said 40
blade, and means to maintain said movable wall
yieldingly in contact with the surface of the hide
or skin. being treated.
6'. In a tool for slicking out hides and skins,
a single blade operative to spread a hide or skin 45
out in extended condition and to express watery
material therefrom, pneumatic means associated
therewith and having a nozzle atr each side of _
said blade so that watery material- may be re
moved When the latter collects on either sur
face of said blade near the operative edge there
of, each nozzle having a spring-pressed outside
wall projectable and retractable to maintain the,
full suction effect of the suction means during '
changes in the ,inclination of the tool with re
spect to the surface of the work, and means
for controlling the suction means so that only
one nozzle at a time is'connected v,to the suction ‘
2. In a tool for operating upon hides and skins, means during operation of the tool in >its in
'
.
,60,
a single slicker blade operative to spread a hide clined relation to the work.
7. A slicker tool for performing putting-out
or skin out in extended condition and to ex
press waiery material therefrom, pneumatic „ operations upon hides and skins comprising two..
means associated therewith and having a nozzle parallel blades selectively operable to spread out `
in extended condition a- hide or skin and con
at each side of said blade so that'watery mate
rial may be removed when the latter collects on comitantly to remove watery material therefrom, 65
65
either surface of said blade near the operative said blades having their operative edges sub
stantially in the same plane and spaced from
edge thereof, and means, dependent upon the in
clination of said tool to the surface undergoing each other to provide‘the side Walls of a nozzle
treatment, for controlling the suction means so member of an air suction means in combination
with said nozzle member, and an4 air suction 70
70 that only one nozzle at a time is connected to the means .connected to said nozzle whereby said
suction means during the operation of the tool
air suction means co-operates with each blade
on the work.
3. In a tool for operating upon hides and skins, in turn as either blade is made toncontact the
hide or skin in putting-out operations thereon.
a single slicker blade, pneumatic means associ
8. In a tool for operating upon hides and skins,
ated
therewith
and
having
a
nozzle
upon
each
75
a blade having an edge operative to contact and an angle of about 30° to the adjacent surface of
treat a surface of a'hide or skin, and pneu-A the blade, and theinclined portion of the outer
matic suction means having a nozzle at each side wall being provided with a plurality 0I closely
of said blade, each nozzle having an outside wall spaced slots leading down to the blade for the
contacting said blade along a line adjacent _to entrance of air and liquid material into said noz- 5
the said operative edge of the blade, the lower
portion of said outside'wall being inclined at
zles.
.
Y
J
H. CONNOR.
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