Improvements in Machines for Mangling, Calendering, or Finishing Woven Fabrics.
Year: 1887

page_text: Improvements in Machines for Mangling, Calendering, or Finishing
Woven Fabrics.
We, WILLIAM ROBERTSON, and JAMES GUTHRIE OROHAR, of Wallace Foundry,
Dundee, in the County of Forfar, North Britain, Engineers, do hereby declare the
nature of this Invention to be as follows, that is to say :-
Our said Invention relates to mangling, calendering, or finishing machines of the
kind described in our Patent Specification No. 8.158 of 1884, and our object is to
improve or modify the arrangement of the levers and hydraulic cylinder by means of
which pressure is applied to the rollers of such machines. Our improved arrangement
is specially suitable for wide machines, but may also be adopted in machines of
various sizes.
In carrying out our present Invention we cause the bearings of the upper rollers to
be acted on by the outer ends of levers extending inwards to the middle of the machine
and centered upon an entablature which consists of two beams or is of a frame-shaped
form in plan. The inner ends of the levers are acted upon by an hydraulic cylinder
placed upon the middle of the entablature, and having its ram working upwards
through its upper end. A crosshead is formed on or fixed to the ram and is
connected by links at the sides to the levers which are each forked or made
double.
nated thin Thistinth day of Decembar 1887
EDMUND HUNT,
Applicants' Agent.

page_text: Woven Fabrics.
We, WILLIAM ROBERTSON, and JAMES GUTHRIE ORCHAR, of Wallace Foundry,
Dundee, in the County of Forfar, North Britain, Engineers, 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, that is
to say :-
Our said Invention relates to mangling, calendering, or finishing machines, of the
kind described in our Patent Specification No. 8158 of 1884, and our object is to
improve or modify the arrangement of the levers and hydraulic cylinder by means of
which pressure is applied to the rollers of such machines. Our improved arrange-
ment is specially suited for wide machines, but may also be adopted in machines of
various sizes.
On an accompanying sheet of explanatory drawings a calendering machine is shown
as made with our present improvements, figure, 1, being a plan of the top of the
machine, figure, 2, a front elevation, figure, 3, a transverse vertical section of the upper
part, and figure, 4, an end elevation. In these drawings the same reference letters
are used to mark the same or like parts wherever they are repeated. The driving gear
and some other well known details are not shown, as they do not require to be referred
to in explaining the Invention.
In carrying out our present Invention we cause the bearings, A, of the top
roller, B, to be acted on, through adjusting screw spindles, C, by the outer ends of
levers, D, extending inwards to the middle of the top of the machine and centered
upon an entablature, E, which may consist of two beams or be of a frame-shaped form
in plan, or as shown in the drawings be of a channel-like cross section. The inner
ends of the levers, D, are acted on by an hydraulic cylinder, F, placed upon the middle
of the entablature, E, and having its ram, G, working upwards through its upper end.
A crosshead, H, is formed on or fixed to the ram, G, and is connected by links, J, at
the sides to the levers, D, which are each made double or forked. Bosses, K, are
formed on the outer sides of the levers, D, and bosses, L, are formed on the insides of
the entablature, E, and the fulcrum pins, M, of the levers are passed through these
bosses. The outer ends of the levers, D, have swivelling pins, N, fitted to them and
through these pins are tapped the adjusting screw spindles, C, connecting the levers
to the roller bearings, A.

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
In machines for mangling, calendering, or finishing woven fabrics the improved
combination of parts for applying pressure to the rollers, and consisting of an
hydraulic cylinder placed at the middle of the entablature of the machine and levers
having their inner ends connected to the ram of the hydraulic cylinder in a manner to
be lifted by it, the said levers having their fulcra upon the entablature between their
ends and having their outer ends connected to the roller bearings, substantially as
hereinbefore described.