An Improved Roller-fulling Engine.
Year: 1889

page_text: Date of Application, 21st May, 1889-Accepted, 12th Oct., 1889
COMPLETE SPECIFICATION.
An Improved Roller-fulling Engine.
I, JOHANNES ORLAMÜNDER, of Rummelsburg near Berlin, Germany, Manufacturer
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:-
Roller fulling-engines that are driven, as usual, at one side only by means of
toothed gearing, show many inconveniences, some of which are considerable.
If one-side driving by toothed wheels be used, the parts of the roller facing next
to the toothed wheels are sooner worn out than the other parts, and in consequence
of the alteration of the rollers losing their cylindrical form and becoming conical the
cloth is irregularly fulled or differently stretched. The friction caused by the lateral
pressure which is unavoidable in toothed gearing, prevents the rollers from moving
freely in their guides, and yet with respect to the irregularities of the cloth to be
fulled the above said motion of the rollers is highly desirable. If the rollers be
turned off and the toothed wheels be not changed, only cloth of a certain thickness
can be worked thereby, otherwise the disadvantages due to toothed gearing must either
be incurred in a higher degree, or the roller jacket, though still serviceable, must
be removed and replaced by a new one..
My present invention has for its object to obviate these disadvantages, and it
consists in employing in place of the one sided driving by toothed gearing, driving gear
consisting of straps, bands, ropes or chains applied on both sides of the rollers and
arranged in such a manner that the rollers may move freely according to the variable
thicknesses of the cloth to be fulled.
I will proceed to describe my said invention with reference to the accompanying
drawings in which Figs. and 4 shew respectively a side view and a plan, Figs. 1
and 3 a vertical and a horizontal section of the fulling-engine. The rollers are
indicated by the letters band e and their axles by d and f. The lower roller 6 is
driven from the main shaft of the mill by means of the pulley c Fig. 3, and its motion
is transmitted to the top roller e by means of the straps ppl Figs. 1 and 2. For this
purpose the straps pass from the pulleys k k¹ on the lower roller shaft first down and
under the tension guide pulleys mm² and o o¹ and then up and over the pulleys lon
the upper roller shaft.
The tension pulleys m m¹ may be firmly adjusted in guides on the framing as shewn
in Fig. 2; the pulleys oo¹ are supported on levers nn' turning on pivots v v¹ and
subjected to downward pressure by the weight u, the pressure of which is transmitted
by the shaft t, the cranks ss¹ and the connecting rods rr. Or in place of the
weight u spring pressure may be used.
This arrangement allows the belts or straps ppl to be kept always under the same
tension. The pressure of the top roller upon the lower one or on the cloth is also
uniform in all parts. According to the variable thicknesses of the cloth and to the
tension of the straps ppl the top roller is raised and lowered in its guides without
friction and the fulling is performed with a regularity which is unattainable with one
side driving by means of toothed gearing. Added to this is the advantage that the
rollers can be turned off repeatedly and that the facings may be used until worn
quite thin because the small decrease of the velocity resulting from such decrease of
diameter has no detrimental influence if it be the same in all points of the roller
surfaces. ii are the usual levers by which the bearings g of the upper roller e are
raised for introducing the fabric in the first instance.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Roller fulling engines the rollers of which are driven on both sides by means of
bands, straps, ropes or chains, such bands, straps, ropes or chains being kept in tension
by means of weights or springs acting in combination with suitable guide pulleys and
so arranged as to allow of the free movement of the upper roller while maintaining
the uniform pressure thereof, substantially as herein described.
D
1
1000
ABEL & IMRAY,
Agents for the Applicant.