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Патент USA US2407386

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‘ Sept. 10, 1946.
v
B. c. NELSON
_
MACHINE FOR TREATING SKINS AND THE LIKE
2,407,380
'
Original Filed July 18, 1942
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B'ERNARV ‘C. NELSON
‘ATTORNEY
Patented Sept. 10, ‘17946
2,407,380
/
UNITED STATES PATENT OFFICE.
2,407,380
MACHINE FOR TREATING SKINS AND
THE LIKE
Bernard 0. Nelson, Norwood, Mass.
Original application July 18, 1942, Serial No.
451,461. Divided and this application April 4,
1945, Serial No. 586,515
4 Claims.
-
(CI. 69-27)
1
This invention relates to machines for treat
ing skins, and particularly to drums used for
same.
I
Broadly, it is an object of my invention to pro
vide a drum for fur treating machines for treat
ing skins to produce smoother and better skins
while giving the hair of the skin a better lustre.
This application is a division of my co-pend
ing application, Serial No. 451,461 which issued
circumferential surface of the drum.
Instead of .
gas, it is a simple matter to replace gas heat
with electricity and use thermostatic means for
automatically controlling the heat.
The frame ll comprises a pair of parallel side
walls I‘! which have low front portions I 8 and
high rear portions IS. A pair of parallel bridge
members 20 are mounted across the low portions
l8 and are connected to the side walls I"! in uni
as U. 8. Patent No. 2,376,500, granted May 22, 10 tary relation. The bridge members 2'0 have in
1945.
clined sides extending upwardly from the outer
faces of the side walls I‘! terminating in brackets
A further object of my invention is to ‘provide
on which the table l2 has been ?xed.
a drum for treating skins which has a series of
grooves so arranged upon the face of the drum
The rear portion of the table I2 is formed
which will cause the heat to be distributed more .
with a large rectangular opening in which the
evenly upon the hairs of the skin to prevent
blanket I3 is mounted. A bar 22 extends'across
the rear of the rectangular opening, bar 23 ex
tends across the front of the central part of the
such hairs from being singed.
V
A further object of my invention is to provide
a plurality of substantially V-shaped grooves in
combination with additional circumferential
grooves and parallel straight grooves, the afore
said grooves being of different depth, so that
the skins being treated beneath the face of the
drum will obtain a better ?nish.
For a fuller understanding of the nature and
table I2 with bar 24 slightly higher than, bar 23
and placed between bars 22 and 23, all the bars
being parallel to one another. The blanket I3
is rotatably mounted on bars 22‘, 23, and .24.
The rear portion of blanket I3 is sloped down
,wardly toward the rear of the machine. The
blanket | 3 may be made of a sheet of felt material
objects of my invention, reference is had to the
as shown, or of a suitable cloth which may be
following detailed description in connection with
the accompanying drawing in which:
reinforced and supported by a wire mesh belt
Fig. 1 is a side elevation of a skin treating
machine showing the drum in relation to the rest of the machine.
Fig. 2 is a view of a fragmentary portion of
that it assists in tautly supporting the blanket
13. The means for lifting and lowering the
the cylindrical surface of the drum developed
into a plane.
a
Fig. 3 is a section taken through line 3-—-3 of
Fig. 2.
.
'
ing 26 of the same width as the blanket l3 so
blanket 13 comprise a link which is pivotally
connected by a pintle 23 to a bracket. The link
21 extends downward and rearward and pivot
ally connects with a lever 30. The front end of
the lever. 30 terminated in a pedal 3| by means
of which the front end of the lever may be de
pressed.
,
Fig. 4 is a View of a fragmentary portion of
Lever 30 is pivotally supported intermediate
the cylindrical surface of a modi?cation. of the
its ends on a pin 32 in lugs 33 extending from a
drum shown in Fig. 2 developed into a plane.
Fig. 5 is a vertical section taken through a 40 bracket which is secured to the side walls I"! of
central portion of the drum shown in Fig. 1.
the frame H. A spring 35 is connected between
the bottom end of, the link 21 and a stationary
Referring to the drawing, numeral mindi
rod 35 of the frame and serves to maintain the
cated a machine for treating skins and the like,
blanket I3 in its lower position. When the pedal
comprising a frame I l having a table 1 2 in which
3| is depressed, the blanket will move upwardly
a blanket I3 is mounted, movable vertically.
An ironing drum I4, having a hollow shaft I5
is rotatably mounted in bearings l5 upon the
table l2. The ironing vdrum I4 is provided with
into engagement with the drum I 4, As shown
in Fig.1, the bearings it are secured to the
overhanging portions 19 of the frame II. The
a central pipe 55 in which there is a series of
outer end of the hollow shaft l5 carries a pair of
holes 56 for gas for heating the interior of the 50 pulleys for contact with a belt, one pulley being
drum l4. Through the central portion of the
keyed to the hollow shaft l5, and the other pul
drum there is a shaft l5 also having a series of
ley being freely rotatably mounted on the hollow
holes 58 which permits the heat to enter the
shaft. The hollow shaft as afore described may
contain gas and the small openings serving as
interior of the drum, since the drum is made
of metal the heat is readily transmitted to the 56 gas jets for heating the interior of the roller as
2,407,380
3
shown in Fig. 5. Any well known belt shaft
mechanism may be used for shifting the belt
from one pulley to the other. The ironing drum
may be covered with a dust and heat shield and
also to prevent excessive heat, if any, from
reaching the skins placed upon the blanket it‘.
As shown in Figs. 2 and 3, the drum is has a
plurality of substantially ‘LI-shaped grooves as,
the agoices being positioned in offset relation
with the middle of the drum so as to cover the
entire circumference of the drum with the
grooves. As shown in
3, the grooves 633 are
of triangular cross section, each groove having a
radially positioned wall {is and a wall t5 posi
tioned at an acute angle to the radial wall lid.
The surface of the drum id has, in addition to
the V-shaped grooves
a series of parallel uni
formly spaced circumferential grooves f-lii and'a
series of parallel longitudinal grooves ti, spaced
apart the same distance as the circumferential
grooves, thus creating a series of squares 3%.
During rotation of the drum it, these grooves
serve to circulate the heated air with the outer
air within the grooves and cause the hairs of the
sxin to raise and stretch while an evenly distrib
uted heat is applied to the skin.
Referring to Fig. 4, numeral lit represents an
other modi?ed drum very much like the drum
shown in Fig. 2, except that the longitudinal
grooves iii! are uniformly spaced apart a lesser
distance Within the circumferential grooves ; the
large V-shaped grooves 5i being similar to the
V-shaped grooves
of Figs. 2 and 3. As shown
in Figs. 2 and 3, the grooves ‘it and iii are cut
with
rectangular
straight as
walls.
seen
so thatFig.
in section
3, however,
they these
grooves may be made V-shaped instead of being
cut vertically, if so desired.
I have found that drums constructed like those
shown in Figs. 2 and 4 will stand exceptionally
long wear, thus permitting the drum to remain
in constant use so that production will not cease
for necessary repairs. It should be understood
that the di?erent drums listed in the drawing
and described in the speci?cation may be de
signed for application upon all of the well known
machines for treating skins of diiferent animals.
It is obvious that various changes and modi?
cations may be made in the details of construc
tion without departing from the general spirit
of the invention as set forth in the appended
claims.
4
I claim:
1. A skin treating machine comprising a circu
lar drum, heating means within said drum, said
drum having a plurality of substantially V
shaped grooves, the junction point of which is
positioned on either side of the circumferential
medial line of said drum, a series of parallel
straight circumferential grooves crossed by a se
ries of parallel straight grooves in said drum, said
grooves being less in depth than said V-shaped
grooves, said straight and V~shaped grooves be
ing uniformly spaced around the entire drum.
2. A skin treating machine comprising a cir
cular drum, heating means Within said drum,
said drum having a plurality of substantially V
shaped grooves, the junction point of each is po
sitioned on either side of the circumferential me
dial line of said drum, a series of parallel straight
circumferential grooves crossed by a series of
parallel straight grooves in said drum, said par
allel grooves losing spaced apart a lesser distance
than said circumferential grooves creating rec
tangles, said straight
V~shaped grooves be
ing uniforn 1y spaced around the entire drum.
A skin treating machine comprising a cir
cular drum, heating means Within said drum,
said drum having a plurality or" substantially V
shaped grooves, the junction point of which is
positioned. on either side of the circumferential
medial line of said drum, a series of parallel
straight circumferential grooves crossed by a se—
ries of parallel straight grooves in said drum,
grooves having sloping walls and being less
in depth than said ‘if-shaped grooves, said
straight and V-shaped'grooves being uniformly
spaced around the entire drum.
4. A skin treating machine comprising a cir
cular drum, heating means within said drum,
said drum having a plurality of substantially V—
shaped grooves, the junction point of which is
positioned on either side of the circumferential
medial line of said drum, a series of parallel
straight circumferential grooves crossed by a se
ries of parallel. straight grooves in said drum,
said parallel grooves having sloping walls spaced
apart a lesser distance than said circumferential
grooves creating rectangles, said straight and V—
shaped grooves. being uniformly spaced around
the entire drum.
BERNARD C. NELSON.
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