Improvements in Calendering and like Presses.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Calendering and like Presses.
I, HAROLD EDGAR, of Colwick, near Nottingham, Hosiery Manufacturer and
Finisher, do hereby declare the nature of this invention to be as follows:-
To the best of my knowledge steam presses, such as those in general use by
hosiery finishers and trimmers, have been invariably turned by hand by means
of a lever with weights at the two extremities. The appliance described herein is
to supersede the use of hand labour by steam power. A bevel wheel, with castings
of suitable shapes between its boss and the centre pin, works the screw by which
the press is raised and lowered. The pinion wheels which work this bevel wheel
are put into gear by clutches, and these clutches are moved along the shaft by
a lever upon which revolving cams are made to operate. The positions of the
shafts upon which these wheels and cams are fixed are described as follows:-
The lever with weighted ends, by means of which an ordinary steam press, such
as is used by hosiery finishers and trimmers, is raised and lowered is first removed.
A small casting is then made to fit around the pin which forms the top of the
screw, just sufficiently loose to allow the pin to rise and fall within it. The out-
side faces of this casting are square. Around this a second casting is fixed, fitting
closely to the first, but being round on its outside face. The boss of a bevel
wheel, with faces uppermost, fits over this latter casting, with just space enough
allowed for an iron slip spring to be placed between them. This permits the
wheel, when necessary, to revolve independently of the screw, and the castings
already described. A shaft runs horizontally across the press from side to side,
having pinion wheels loosely upon it which are always in gear over the bevel
wheel, and at opposite sides of it. These pinion wheels are made to revolve by
clutches, which themselves revolve with the shaft on feathered keys; and their
motion involves the revolution of the bevel wheel which works the screw. The
clutche's are moved on their key's from left to right, and from right to left, a
required, continuously, by means of a leyer which will be described later. In the
middle of this main shaft, that is, over the centre pin, a worm is fixed, which
works a toothed wheel, keyed to another shaft, that runs at right angles over the
first-named one, causing it also to revolve, but at a slower speed. On this shaft
are fixed two cams, so shaped as to work the lever already referred to, by which
the clutches put the pinion wheels into motion, one cam working the right, and the
other the left hand clutch. By these cams, both wheels can be kept out of gear,
or either one of them can be put in gear, whilst the other one is held out. The
lever itself fits into grooves in the clutches, holding them the requisite distance
apart and there are projections from it, with which the cams come into contact,
causing it to move from side to side as required. The whole is supported on
standards of suitable strength.
Duul meu da.. of Ontalon 1807

page_text: Improvements in Calendering and like Presses.
I, HAROLD EDGAR, of Colwick, Nottinghamshire, Hosiery 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:
In ordinary steam presses, such as those in general use by hosiery finishers and
trimmers, the upper bed rises and falls on a screw, which is turned by hand, by
means of a lever with weights at its two extremities. The appliance described
herein is to supersede the use of hand labour by mechanical power. To apply
this improvement to an existing press the lever with weighted ends must first be
removed.
Figure 1 is an end elevation.
Figure 2 is a front sectional elevation.
Figure 3 is a sectional plan.
A small casting (a) is made to fit round the top of the screw (A). Around this
is placed a second casting (a) the two castings being connected by a feather (a2).
This arrangement allows the inner one to rise and fall with the screw, inde-
pendently of the outer one, although the two must necessarily revolve together.
The boss of a horizontal bevel wheel (a³) with teeth uppermost, is placed round
this outer casting, and is chambered inside to allow of a slip spring (a) being
placed between the two. The object of this slip spring is to allow the wheel to
continue revolving, after the screw and castings have been stopped by the upper
bed of the press coming in contact with the lower one, or with any board or fabric
which may have been placed in the press. By a set screw (a³) through the boss
this slip spring may be tightened or loosened at pleasure.
A shaft (B) runs horizontally across the press from side to side, supported by
brackets (and b) which rest on the beam of the press. Upon this shaft are two
loose pinion wheels (b) which are always in gear with the bevel wheel, (a³) one on
each side of it. These pinion wheels are made to revolve by clutches (63) of any
description, either friction, (as in drawings attached hereto) or toothed, which
are fastened to, and revolve with the shaft (B). These clutches are actuated by
guides (64) fixed to a bar (b) which slides in brackets (66) supported by the
brackets (61 and 62). On the shaft (B) there is fixed a worm (C) which works in
a toothed wheel (c) keyed on a short shaft (c) running at right angles with the
larger shaft (B). Upon this shaft (¹) is placed a grooved cam (2) which operates
the bar (65). The cam has an adjustable nose, and is so shaped as to cause the
bar (b) to move periodically from side to side, with a regulated interval of rest
between its movements. The clutches (63) being connected with the bar they move
with it and operate the pinion wheels (6) alternately; and as these are in gear
at opposite sides of the bevel wheel (a) the latter is turned in one direction or the
other, according as one or other of the pinion wheels is in action. The pinion
wheels are never both in action together, but they are sometimes both out of
action, and then the screw and press remain at rest. How this is effected by
the cam will be obvious. A projection at one point of the cam urges the bar
until the near clutch is put into action. A grooved indentation at another point
draws the bar so far backwards that the first clutch is drawn out and the more
distant one put into action. And wherever the cam does not operate the bar,
the press remains standing, whether the top bed is up or down at the time.
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) An appliance to a calendering or like press which enables the necessary

page_text: process of raising and lowering the upper bed of the press to be performed auto-
matically by mechanical power, substantially as hereinbefore described.
(2) The construction or arrangement and combination of parts of the appliance
to a calendering or like press, substantially as hereinbefore described, with
reference to the accompanying drawings.