Year: 1898

page_text: Date of Application, 1st Nov., 1898
Complete Specification Left, 29th July, 1899-Accepted, 2nd Sept., 1899
I, OTTO STEGMEYER, of 145, Wilmersdorferstrasse, Charlottenburg, near Berlin,
in the German Empire, Engineer, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to a machine for treating leather.
Machines which serve for treating leather, that is to say, for polishing,
smoothing, graining, embossing leather, etc., are usually constructed for hand
power, that is to say, for pulling and pushing by hand. Such machines must
be operated by two or more workmen when treating heavy leather and they
therefore offer considerable difficulty in working.
These disadvantages are obviated by the machine forming the subject of this
invention, the said machine being characterized by the arrangement of the
roller or cylinder, which operates upon the leather, upon a carriage which is
drawn to-and-fro by belt gear, is automatically unhitched at the end of its travel
and is freely suspended in order to allow the leather to be shifted for the next
operation of the roller; at the same time provision is made for altering, as
required, the length of travel of the carriage by means of a foot lever through
the medium of which the belt gear can be shifted.
In a suitable arrangement for carrying out the invention the working cylinder
or roller is carried by the carriage and is automatically moved to-and-fro and
thereby works upon the leather which is laid upon an electric layer or pad
carried by a pressure rail adapted to be moved in a slot in a table secured to the
two standards or supports of the machine frame.
The carriage is provided with two guide-rollers which run under a second or
upper rail connecting the two standards or supports with one another and taking
up the pressure transmitted from below by the pressure rail. A further con-
nection of the standards or supports is effected by means of a rail or rod which
is parallel to the upper rail and which guides the pressure screws connected with
the pressure rail.
The
To transmit the pressure a weight is provided which, by means of a rod, acts
upon two levers, which said levers are pivoted by means of links to holders on
the lower rod or rail and engage adjustable nuts on the pressure screws.
elevation of the pressure rail is limited by means of two screws which are fixed
to the frame and the nuts of which can be adjusted as required.
The carriage is secured to the lower part of a belt or band which runs over
pulleys mounted upon the standards. The shaft of one of these pulleys is pro-
vided with a bevel wheel with which gears a bevel wheel upon a shaft upon
which are arranged two loose pulleys and an intermediate fast pulley upon which
latter a crossed belt and an open belt are alternately shifted to impart to the
carriage its to-and-fro motion.
This shifting of the belt to change the motion is effected at the end of the
travel of the carriage automatically by means of a carrier fitted to the latter.
This carrier rests upon one of two sliding hooks which holds the carriage, after

page_text: it has left the elastic layer or the leather, suspended to the rail and to this end
it engages in lateral notches in the latter.
The carrier acts upon arms on a shaft mounted in the frame of the machine,
of which arms one is directed at an angle forwards and the other at an angle
backwards so that the shaft is turned at one time in one, and at another time
in the other, direction. By these means and through the medium of a chain
wheel on the shaft, and a chain, the rotation of a second chain wheel is effected,
the shaft of which wheel is mounted in one of the standards and carries a pulley
having a pin with which the rod carrying the belt fork engages.
At the end of the movement of the carriage, therefore, an automatic change
of direction of its motion is effected by the rotation of the shaft carrying the
arms.
In order to be able to vary as required the length of travel of the carriage, a
board, serving as a footboard, is pivotally mounted at the lower part of the
standards, the said footboard being connected by a rod to an arm on the belt
shifting shaft.
By a simple movement of the foot the workman seated in front of the machine
operates the foot board and thereby regulates the length of travel of the carriage
and of its roller according to the width of the leather to be worked, whereby he
is enabled to manipulate the leather comfortably and securely with both hands.
The described machine can thus be controlled by a physically weak attendant.
By warming the roller an excellent polish is quickly obtained upon the leather.
To heat the said roller, (which can be for example in the form of an embossing
roller) by means of a gas flame I provide a tube which is moved to-and-fro by
the carriage and which is connected by joint pieces and a flexible pipe with a
second tube. The latter is in pivotal connection by means of a joint piece with
a holder secured to one of the standards and also with a flexible pipe which is
connected to a tube to which can be fitted a gas pipe having a fitting provided
with a gas cock.
When the machine is at rest the leather to be treated can be conveniently
placed upon the table and the elastic layer on the pressure rail. The carriage
with its roller then hangs from the sliding hook on the upper rail and the elastic
layer cannot be injuriously affected by the heated roller.
The peculiar arrangement of the working table and of the pressure rail, as
also of the weight levers, enables the machine to be arranged in a small space.
Dated the 1st day of November 1898.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
I, OTTO STEGMEYER, of 145, Wilmersdorferstrasse, Charlottenburg, near Berlin,
in the German Empire, Engineer, do hereby declare the nature of this inven-
tion 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 machine for treating leather.
Machines which serve for treating leather, that is to say, for polishing,
smoothing, graining, embossing leather, etc., are usually constructed for hand
power, that is to say, for pulling and pushing by hand. Such machines must
be operated by two or more workmen when treating heavy leather and they
therefore offer considerable difficulty in working.

page_text: These disadvantages are obviated by the machine forming the subject of this
invention, the said machine being characterized by the arrangement of the
roller or cylinder, which operates upon the leather, upon a carriage which is
drawn to-and-fro by belt gear, is automatically unhitched at the end of its travel
and is freely suspended in order to allow the leather to be shifted for the next
operation of the roller; at the same time provision is made for altering, as
required, the length of travel of the carriage by means of a foot lever through
the medium of which the belt gear can be shifted.
In the accompanying drawing:
Figure 1 is a side elevation of a machine constructed according to the inven-
tion; and
Figure 2 is an end view thereof.
The working cylinder or roller a is carried by the carriage and is automati-
cally moved to-and-fro and thereby works upon the leather which is laid upon
an elastic layer or pad u carried by a pressure rail d adapted to be moved in a
slot in a table D secured to the two standards or supports A of the machine frame.
The carriage w is provided with two guide-rollers a which run under a second
or upper rail connecting the two standards or supports A with one another and
taking up the pressure transmitted from below by the pressure rail d. A
further connection of the standards or supports A is effected by means of a rail
or rod which is parallel to the upper rail and which guides the pressure
screws connected with the pressure rail d.
To transmit the pressure a weight & is provided which, by means of a rod k',
acts upon two levers m which said levers are pivoted by means of links m¹ to
holders m on the lower rod or rail and engage adjustable nuts n on the pressure
screws . The elevation of the pressure rail d is limited by means of two
screws c which are fixed to the frame and the nuts of which can be adjusted as
required.
The carriage is secured to the lower part of a belt or band which runs over
pulleys mounted upon the standards A. The shaft of one of these pulleys v
is provided with a toothed wheel y gearing with a pinione upon a shaft al upon
which are arranged two loose pulleys o and an intermediate fast pulley of upon
which latter a crossed belt and an open helt g are alternately shifted to impart
to the carriage its to-and-fro motion.
This shifting of the belt to change the motion is effected at the end of the
travel of the carriage w automatically by means of a carrier h¹ fitted to the latter.
This carrier rests upon one of two sliding hooks which hold the carriage w,
after it has left the elastic layer or the leather, suspended to the rail t and to
this end engage in lateral notches in the latter.
The carrier acts upon arms and 2 on a shaft r mounted in the frame of
the machine, of which arms one is directed at an angle forwards and the other
at an angle backwards, so that the shaft is turned at one time in one, and at
another time in the other, direction. By these means and through the medium
of a chain wheel e on the shaft r and a chain e¹, the rotation of a second chain
wheel is effected, the shaft f¹ of which wheel is mounted in one of the
standards A and carries a pulley 2 having pins with which the rods carrying
the belt forks engage.
At the end of the movement of the carriage w, therefore, an automatic change
of direction of its motion is effected by the rotation of the shaft carrying the
arms so as to shift the belts
and 9.
In order to be able to vary as required the length of travel of the carriage, a
board d serving as a footboard, is pivotally mounted at the lower part of the
standards A as shewn at z, the said footboard & being connected by a rod b¹ to
an arm 2 on the belt shifting shaft r.
By a simple movement of the foot the workman seated in front of the machine
operates the foot board d and thereby regulates the length of travel of the
carriage and of its roller a according to the width of the leather to be worked,

page_text: whereby he is enabled to manipulate the leather comfortably and securely with
both hands.
The described machine can thus be controlled by a physically weak attendant.
By warming the roller a an excellent polish is quickly obtained upon the
leather. To heat the said roller, (which can be for example in the form of an
embossing roller) by means of a gas flame I provide a tube g' which is moved
to-and-fro by the carriage w and which is connected by joint pieces 92 and 3
and a flexible pipe s to a second tube g. The latter is in pivotal connection
by means of a joint piece with a holder d¹ secured to one of the standards A
and also with a flexible pipes which is connected to a tube to which can be
fitted a gas pipe having a fitting c¹ provided with a gas cock.
When the machine is at rest the leather to be treated can be conveniently
placed upon the table D and the elastic layer u on the pressure rail d. The
carriage with its roller a then hangs from the sliding hooks on the upper
rail and the elastic layer u cannot be injuriously affected by the heated roller a.
The peculiar arrangement of the working table D and of the pressure rail d;
as also of the weight levers m, enables the machine to be arranged in a small
space.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In a machine for treating leather by means of a roller which is recipro-
cated under pressure over the leather, the arrangement wherein the roller is
carried by a carriage reciprocated by means of a belt or band, is automatically
put out of gear at the end of its movement in either direction and is held freely
suspended upon a rod by means of sliding hooks so that the leather can be
conveniently placed upon a pressure rail and the elastic layer or bed carried by
the said rail is not injuriously affected by the roller which may be heated,
substantially as hereinbefore described.
2. A machine for treating leather of the kind described in Claim 1 wherein
the reciprocation of the carriage is effected by means of belt gear having two
loose pulleys, an intermediate fast pulley, and open and crossed belts which at
the end of the travel of the carriage in either direction are shifted by a carrier
attached to the carriage acting upon a tappet or arm on a shaft so as to rotate
a pulley to the spindle of which the rod carrying the belt forks is connected,
substantially as hereinbefore described.
3. A machine for treating leather of the kind described in Claim 1 wherein
a weight is employed for transmitting the pressure to the pressure rail, the said
weight operating, by means of a rod, two levers which through the medium of
links are mounted upon holders on a lower rail and engage with adjustable nuts
on pressure screws, the extent of the movement of the pressure rail being limited
by means of adjustable nuts, substantially as herein before described.
4. The machine for treating leather consisting of the parts combined arranged
and operating, substantially as hereinbefore described and illustrated in the
accompanying drawing.
Doted the 201
s T 1
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.