Improvements in Mangles.
Year: 1896

page_text: Date of Application, 15th Apr., 1896
Complete Specification Left, 13th Jan., 1897-Accepted, 13th Mar., 1897
Improvements in Mangles.
I, ROBERT LENTZKOW, of 14 Victoria Street, Bornstedt, (Brandenburg) in,
the Empire of Germany, Merchant, do hereby declare the nature of this invention
to be as follows:-
In mangles with reciprocating rollers, as hitherto constructed, the required:
pressure is exerted through the medium of a box charged or loaded with stones
or other weights, an arrangement which has the defect, that a part only of the
weight of the loaded box is really utilized, since the effective resultant of the
forces acting upon the roller is constantly changing by reason of the changing
position of the weighted box relatively to the roller and is not controllable.
According to the present invention the roller does not receive an advancing but
merely a rotary motion in fixed bearings and the required pressure is exerted by
the table to which a thrust is transmitted by a lever, which is loaded by the weight.
of the person actuating the machine in such a manner that the pressure may be
regulated according to requirement.
The roller, located in a frame, is driven by toothed gearing, from a crank handle
and the roller-cloth having one end fixed to the roller, is wound thereon when the
roller is rotated.
Closely in front of the roller a ledge extending parallel to the table-surface, is
arranged on the frame, which ledge serves to flatten the clothes placed upon the
roller-cloth, after they have been seized by the roller.
The table may be arranged horizontally or inclined and may be hinged at one
of its extremities. The free extremity of the table is supported by a rod or strut
resting upon the short arm of a double-lever, the longer arm of which is constructed,
so as to formn a platform, which may serve as a stand for the person actuating the
machine. By the weight so applied and acting through the levers the table is
forced against the roller and thereby the required pressure is imparted to the
clothes while the roller is being rotated.
It is evident that the operator can readily regulate the pressure of the table
against the roller by moving nearer to or further from the pivot of the platform.
Instead of utilizing the weight of the person that actuates the roller for loading.
the platform, a special weight either stationary or movable may be used.
In order to unwind the clothes from the roller, a device may be provided, which
enables the roller-cloth to be drawn off the roller, without revolving the crank.
This may for example be attained through the medium of a pawl and ratchet
wheel, the pawl being disengaged, when the roller-cloth is drawn off; or it may be
attained by throwing the crank out of gear.
D
11000
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements in Mangles.
I, ROBERT LENTZKOW, of 14" Victoria Street, Bornstedt (Brandenburg) in
the Empire of Germany, Merchant, 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 :-
In mangles with reciprocating rollers, as hitherto constructed, the required
pressure is exerted through the medium of a box charged or loaded with stones or
other weights, an arrangement which has the defect that a part only of the weight
of the loaded box is really utilized, since the effective resultant of the forces acting
upon the roller is constantly changing by reason of the changing position of the
weighted box relatively to the roller and is not controllable.
According to the present invention the roller does not receive an advancing but
merely a rotary motion in fixed bearings and the required pressure is exerted by
the table to which a thrust is transmitted by a lever, which is loaded by the weight.
of the person actuating the machine in such a manner that the pressure may be
regulated according to requirement.
This invention is shown in the accompanying drawings, in which
Figure 1 represents side elevation of a mangle constructed according to the
invention.
Figure 2 is a plan view.
Figure 3 is a vertical longitudinal section and Figure 4 is a modified form of
mangle.
The roller b, located in a frame, is driven by toothed gearing, from a crank
handle a and the roller cloth c having one end fixed to the roller b, is wound
thereon when the roller is rotated.
Closely in front of the roller b a ledge d extending parallel to the table-surface,
is arranged on the frame, which ledge serves to flatten the clothes placed upon the
roller cloth c, after they have been seized by the roller.
The table e may be arranged horizontally or inclined and may be hinged at one
of its extremities. The free extremity of the table is supported by a rod g or
strut resting upon the short arm h of a double-lever, the longer arm i of which is
constructed, so as to form a platform, which may serve as a stand for the person
actuating the machine. By the weight so applied and acting through the levers
the table e is forced against the roller and thereby the required pressure is
imparted to the clothes while the roller is being rotated.
In the construction shown in Figure 1 the lever arm lies in its lowest position
and consequently the table e bears immediately against the roller b. According
to Figure 3 the lever arm i, shown in dotted lines lies in its highest position, in
which the clothes placed upon the roller-cloth fill up the space between the roller
and the table.
It is evident that the operator can readily regulate the pressure of the table
against the roller by moving nearer to or further from the pivot of the platform.
Instead of utilizing the weight of the person that actuates the roller, a special
weight either stationary or movable may be used.
In order to unwind the clothes from the roller, a device may be provided which
enables the roller-cloth to be drawn off the roller, without revolving the crank.
This may for example be attained through the medium of a pawl and ratchet-
wheel, the pawl being disengaged when the roller-cloth is drawn off; or it may be
attained by throwing the crank out of gear.
In the mangle represented in Figures 1 to 3 the crank handle as well as the
treadle of the lever are arranged laterally; Figure 4 represents a mangle, in which

page_text: the crank handle and the treadle of the lever are arranged on that end of the
table, which lies opposite the roller. In order to enable the roller 6 to be actuated
from this end, a bevelled tooth wheel k is connected to the cog wheel n, which
bevel wheel engages with the bevel wheel fixed to the end of the crank shaft o.
The latter is arranged sideways of the mangle and slightly projects over its
extremity so that the crank. handle a may be freely turned."
The double lever serving to press the table plate or top on to the roller b is
arranged below the said table plate or top and extends all over the length of the
table, so as to be within reach of the operator, who turns the crank. In this
arrangement the lever arm i is comparatively long and consequently the pressure
exerted upon the.roller b is comparatively great.
The improved mangle need not be arranged upon a special frame, but may for
instance be placed on a kitchen table or on any other suitable piece of furniture or
the like.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An improved mangle having a roller b arranged in fixed bearings, the charging
or loading of which mangle is effected during its operation in such a manner, that
the below arranged table surface is forced upwards with a regular even pressure.
2. In a mangle of the kind described in the first claim, the arrangement
according to which the roller cloth (c), serving as the base and guide for the
clothes to be mangled is fixed with one end to the roller b, in order to thereby
ensure a reliable seizing and holding of the clothes, even on applying a strong
lever pressure.
Dated this 13th day of January 1807
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.