Improvements in Machinery or Apparatus for Treating Skins in the Manufacture of Leather.
Year: 1895

page_text: Date of Application, 23rd Apr., 1895.
Complete Specification Left, 6th Nov., 1895-Accepted, 7th Dec., 1395
Improvements in Machinery or Apparatus for Treating Skins in the
Manufacture of Leather.
A communication from abroad by E. MORITZ & Co., of Dohna, near Dresden,
Germany, Leather Manufacturers.
1, WILLIAM LLOYD WISE of 46 Lincoln's Inn Fields in the County of London
Consulting Engineer and Chartered Patent Agent, do hereby declare the nature of
this invention to be as follows:
This invention relates to a stretching and finishing or dressing machine designed
to supersede manual labor with the stretching iron. A machine according thereto
is illustrated in the accompanying drawings,
Fig. 1 being a front elevation;
Fig. 2 a side elevation, and
Fig. 3 a vertical section on the line X-Y of Fig. 1.
AA is a framing in the upper portion of which is mounted a shaft B, that carries
the stretching irons b, the front or working part of each of which is of similar form
to that of the usual hand-stretching iron. The several stretching irons 6 are
arranged on the shaft B in helical lines commencing at the centre of said shaft
and extending in opposite directions towards both ends. The shaft B is driven by
means of a belt pulley B' which is fixed on one end thereof and is itself driven
from shafting. Above the shaft B towards the rear is arranged a smoothing
frane C which consists of a lower. portion c and an upper portion c¹. The upper
portion is connected with the lower portion in such a manner as to be capable of
being turned over rearwardly about an axis d, as indicated in dotted lines in Fig. 2.
The lower part of the frame is provided at both ends with downwardly extending
toothed racks that work in guides a fixed to the frame. In these toothed racks f
engage toothed wheels h which are fixed on the ends of a shaft D that is mounted
in the framing A A., The toothed wheels hgear with toothed wheels i mounted
on a lower shaft E also carried by the framing A A. This latter shaft E bas on
one end a belt pulley F by which it is driven. When the shaft E is rotated in the
proper direction by means of the belt pulley F, whilst the wheels and are in
gear with each other, there is produced a movement of the toothed racks and
consequently the frame C is raised, as shown in Fig. 2. The shaft E is connected
by means of two rods with levers which are fixed on a shaft G that is carried
in the lower portion of the framing A. This shaft G also carries a treadle
lever H, and when this latter is moved downward, the shaft E is raised so as to
bring the toothed wheels i into gear with the toothed wheels h. The bearings of
the shaft E are adapted to move up and down in guides in the framing A A. On
removing the foot from the treadle lever H, the shaft E moves down by reason of
its own weight and thereby moves the toothed wheels i out of gear with the
toothed wheels h. On a shaft K towards the rear of the machine, are fixed two;
rods m which are connected together at their upper parts by a cross-piece n..
Another cross-piece o is arranged between the rods m and is adapted to move
parallel to the cross-piece n.
Over the rods n and o a piece of leather L is stretched it being kept taut by
means of springs p inserted between the cross-pieces n and o, but which will yield
when pressure is applied thereto.
:.

page_text: The shaft K carries on its forward side a bent or stirrup-shaped parts which
has for object to enable the shaft K to be rotated, so as to allow the leather L to
be pressed against the stretching irons b of the shaft B, whereby the leather L
becomes deflected rearwardly by reason of the yielding of the springs p. The
mode of operation of the machine is as follows:-The skin to be treated is clamped
at about its middle in the frame C, as clearly shown in Fig. 3, the skin hanging
down behind the shaft B. On depressing the treadle H, the frame is raised,
drawing the skin up behind the stretching irons b. At the same time the workman
who depresses the treadle H, pulls the bent pieces forwards, whereby the skin to
be treated is pressed by the leather piece Lagainst the stretching irons on the
shaft B.
In this manner, the skin is drawn by the upwardly moving frame C between
the leather piece L and the stretching irons, and becomes dressed by the latter
becoming stretched towards both sides as well as towards the bottom end.
When it has been raised by means of the frame:C, so that it has been treated over
balf of its length, the workman removes the pressure from the treadle H, whereupon
the frame C together with the skin, falls down again, and the other half of the
skin is treated in the manner above described.
After treatment in one direction, the skin may if desired be clamped afresh so as
to allow of its being treated in another direction.
The guides g for the toothed racks fare provided at the bottom with rubber
stops or buffers g' which take up the impact of the toothed racks when the
smoothing frame falls.
Dated this 23rd day of Anril 1895
71
W. LLOYD WISE,
46 Lincoln's Inn Fields, London; W.C.; Chartered Patent Agent.
Improvements in Machinery or 'Apparatus for Treating Skins in the
Manufacture of Leather,"
A communication from abroad by E. MORITZ & Co., of Dohna, near Dresden,
Germany, Leather Manufacturers.
I WILLIAM LLOYD WISE, of 46 Lincoln's Inn Fields, in the County of
London, Consulting Engineer and Chartered Patent Agent, do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:—
This invention relates to a stretching and finishing or dressing machine designed
to supersede manual labor with the stretching irou. A machine according thereto
is illustrated in the drawings filed with my Provisional Specification,
Fig. 1 being a front elevation,
Fig. 2 a side elevation, and
Fig. 3 a vertical section on the line & y of Fig. 1.
A A is the framing of the machine in the upper portion of which is mounted a
shaft B that carries a number of stretching irons b, the front or working part of
each of which is made of similar form to that of the usual manual-stretching iron.
The several stretching irons 6 are arranged on the shaft B in Lelical lines
commencing at the centre of the said shaft and extending in opposite directions
towards both ends. The shaft B is driven by means of a belt pulley B' which is
fixed on one end thereof and is itself driven from shafting. Above the shaft, B,
towards the rear, is arranged a frame C that serves to hold the skin to be treated
and which consists of a lower portion and an upper portion e. The upper
portion c¹ is connected with the lower portion in such a manner as to be capable of
i
A

page_text: gear
being turned over rearwardly about an axis d, as indicated in dotted lines in Fig. 2.
The lower part of the frame C is provided at both ends with downwardly
extending toothed racks that work in guides y fixed to the frame of the machine.
In gear with the toothed racks are toothed wheels h, which are fixed on the ends
of a shaft D mounted' in the framing A A. The toothed wheels h into
toothed wheels i fast ou a lower shaft E that is also carried by the framing A A.
This latter shaft E has on one end a belt pulley F by which it is driven. When'
the shaft E is rotated in the proper direction by means of the belt pulley F whilst
the wheels' and i are in gear with each other, a vertical movement of the toothed
racks will be produced whereby the frame C will be raised (see Fig. 2). The
shaft E is connected by means of two rods & with levers or arms which are fixed
on a shaft G carried in the lower portion of the framing A. This shaft G also
carries a treadle lever H, and when this latter is moved downward, the shaft E is
raised so as to bring the toothed wheels i into gear with the toothed wheels h.
The bearings of the shaft. E are adapted to move up and down. in guides in the
framing A A. On removing the foot from the treadle lever H, the shaft E moves
down by its own weight and thereby moves the toothed wheels i out of gear with
the toothed wheels h. On a shaft K, towards the rear of the machine, are fixed
two rods m which are connected together at their upper parts by a cross piece n.
Another cross-piece o is arranged between the rods m and is adapted to move
parallel to the cross piece n. Over the two rods n and o there is stretched a piece
of leather L which is kept taut by means of springs p inserted between the cross
pieces n and o but which will yield when pressure is applied to it.
The shaft K carries on its forward side a beut or stirrup-shaped parts which
has for object to enable the shaft K to be rotated, so as to enable the leather L
to be pressed against the stretching irons b of the shaft B, the effect of which is
to deflect the leather L rearwardly, this being allowed by the yielding of the
springs p.
The mode of operation of the machine is as follows:-
The skin to be treated is clamped at about its middle in the frame C, as clearly
shown in Fig. 3, the skin hauging down behind the shaft B. On now depressing
the treadle lever H, the wheels on the shatt E, which is assumed to be rotating,
will be put in gear with the wheels with the result that the frame C will be
raised, drawing the skin up behind the stretching irons b. At the same time, the
workman who depresses the treadle lever H, pulls the bent piece s forwards,
whereby the skin to be treated will be pressed by the piece of leather L against
the stretching irons on the shaft B. In this manner the skin is drawn by the
upwardly moving frame C between the piece of leather L and the stretching irons,
ad is thereby dressed, being simultaneously stretched towards both sides and also
downwardly, that is to say in three directions. When the skin has been raised by
means of the frame C until it has been treated over about half of its length, the
workman releases the bent pieces and removes the pressure from the treadle
lever H, whereupon the frame C, together with the skin, falls down again, after
which the other half of the skin is treated in a similar manner. After treatment
in one direction, the skin may, if desired, be clamped afresh so as to allow of its
being treated in another direction.
:
The guides g for the toothed racks are provided at the bottom with india
rubber stops or buffers g' which take up the impact of the toothed racks when the
frame C falls.
Having now particularly described and ascertained the nature of the said inven-
tion aud in what manner the same is to be performed 1 declare that what I
claim is:-
1. A stretching and finishing or dressing machine for use in the manufacture of
leather in which a shait B with stretching irons 6 arranged in helical lines
extending in opposite directions from the middle of said shaft, used in combination
with a movable frame C for holding the skin to be treated, and a piece of leather L

page_text: stretched on a frame by means of springs, the arrangement being such that on
depressing a treadle lever H and thereby putting wheels hand of the driving:
mechanism of the machine into engagement, the frame C, with the skin clamped
therein, will be raised by means of toothed racks, and the skin will be drawn
aleng between the rotating stretching irons and the elastic leather abutment L,
whereby the skin will be treated simultaneously in three directions, substantially as
.described.
2. A machine or apparatus for treating skins, constructed arranged and operating,
as hereinbefore described with reference to and shown in the drawings herein
referred to.
Dated this 6th day of November 1905
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.