Improvements in and relating to the Driving Gear of Paper Making and other Machinery.
Year: 1899

page_text: Date of Application, 5th June, 1899
Complete Specification Left, 5th Mar., 1900-Accepted, 7th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Driving Gear of Paper Making
and other Machinery.
We, DAVID NOBLE BERTRAM, Engineer, of St. Katherine's Works, Sciennes,
Edinburgh, and SAMUEL MILNE, Engineer, of 3, Oxford Street, Edinburgh, do
hereby declare the nature of our invention to be as follows:-
This invention has relation to and comprises improvements in the driving
gear of paper making and other machinery, and has for its object the simplifica-
tion and improvement of the driving gear and parts connected therewith,
whereby various distinct advantages are obtained namely:-
Friction or other clutches are dispensed with, as a means of stopping and
starting the various parts of the machine.
The levers or handles for stopping or starting the various parts are used also
for varying the speed of said parts and by being placed at front of machine
are in the most convenient position granting the attendant the full control of
the individual parts from the front of paper making machine, with an index, so
that he knows exactly to what part of the cone to shift the belt.
According to this invention the improvements are applied to that style of
gearing usually styled the conical drive, which consists of shafts connected to
the various parts of the machine, more or less in number according to the
number of cylinders, calenders and the like, driven by bevel or spur wheels from
a cone pulley, which is driven from any convenient similar cone pulley.
The various parts of the machine have hitherto usually been provided with
friction or other clutches as a means of stopping and starting them. According
to this invention a loose pulley is provided alongside, or at the end of the cone
pulley, in such a way that by moving the belt off the cone and on to the loose
pulley the part of the machine driven by the cone is stopped, or rice versa.
The loose pulley would preferably be smaller in diameter than the cone, so
that the belt becomes slack when on the pulley.
The speed of the various parts is varied by the position of the belt on the
cone, which is effected by means of levers and shaft, or other suitable mechanism,
from the front of machine, these being also suited to move the belt on to the
loose pulley.
The handles, levers or other suitable mechanism which are placed in a con-
venient position in front of machine thus not only provide the means of stopping
and starting the various parts of the machine, but also of regulating the speed
of those parts.
At the front of machine in connection with the handles or levers, suitable
stops indexes, or their equivalents are provided, so that the belts can be placed
in the correct position on comes to give the required speed to the various parts
after having been moved on or off the loose pulley.
Dalal th
T
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.

page_text: Improvements in and relating to the Driving Gear of Paper Making
and other Machinery.
We, DAVID NOBLE BERTRAM, Engineer, of St. Katherine's Works, Sciennes,
Edinburgh, and SAMUEL MILNE, Engineer, of 3, Oxford Street, Edinburgh, 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:-
This invention has relation to and comprises improvements in the driving
gear of
paper making and other machinery, and has for its object the simplifica-
tion and improvements of the driving gear and parts connected therewith,
whereby various distinct advantages are obtained namely:-
Friction or other clutches are dispensed with, as a means of stopping and
starting the various parts of the machine.
The levers or handles for stopping or starting the various parts are used also
for varying the speed of said parts and by being placed at front of machine
are in the most convenient position granting the attendant the full control of
the individual parts from the front of paper making machine, with an index, s0
that he knows exactly to what part of the cone to shift the belt.
According to this invention the improvements are applied to that style of
gearing usually styled the conical drive, which consists of shafts connected to
the various parts of the machine more or less in number according to the
number of cylinders, calenders and the like, driven by bevel or spur wheels from
a cone pulley, which is driven from any convenient similar cone pulley.
The various parts of the machine have hitherto usually been provided with
friction or other clutches as a means of stopping and starting them. According
to this invention a loose pulley is provided alongside or at the end of the cone
pulley in such a way that by moving the belt off the cone and on to the loose
pulley the part of the machine driven by the cone is stopped, or vice versa.
The loose pulley would preferably be smaller in diameter than the cone, so
that the belt becomes slacker when on the pulley.
The speed of the various parts is varied by the position of the belt on the
cone, which is effected by means of levers and shaft, or other suitable mechanism,
from the front of machine, these being also suited to move the belt on to the
loose pulley.
The handles, levers or other suitable mechanism which are placed in a con-
venient position in front of machine thus not only provide the means of stopping
and starting the various parts of the machine, but also of regulating the speed
of those parts.
At the front of machine in connection with the handles or levers, suitable
stops, indexes, or their equivalents are provided, so that the belts can be placed
in the correct position on cones to give the required speed to the various parts
after having been moved on or off the loose pulley.
And in order that our said invention and the manner of carrying same into
practice may be properly understood, we have hereunto appended a sheet of
explanatory drawings in which Figures 1 and 2 are an elevation and plan view
respectively representing a cone pulley and gearing as arranged according to
our improvements and Figure 3 is a corresponding side elevation, while
Figure 4 is a front elevation showing the operating handle and adjustable stop.
Figure is an elevation corresponding to Figure 1 of a modified arrangement of
our improvements.
Referring to these drawings, the cone pulley A¹ is secured to a shaft A, on

page_text: which is also mounted the loose pulley A2 which is made slightly smaller in
diameter than the pulley A. The cone pulley A¹ would be driven by a belt
from any adjacent similar cone pulley, and communicates motion through bevel
wheels A, A, to a shaft A at one part or section of machine. A spindle a
is carried in bearings a at the upper part of frame supports and is fitted
with a fork or gripper for embracing and shifting the driving belt. The end
of spindle is connected by a link to the upper end of a lever 2, the lower
end of which is secured to an oscillating shaft c. A hand lever is fitted at
the end of shaft for operating same, and works within an adjustable quadrant
or stop, so that by shifting it to the regulated position the shaft can he
oscillated and the shaft a be moved to place the belt in the correct position on
the cone pulley A¹ to give the required speed, after having been moved on to or
off the loose pulley A².
In the modified arrangement shown in Figure 5 the spindle a is dispensed
with, and two parallel levers or oscillating links are used connected together
at their upper end by a link carrying a fork or belt shifter b. The shaft e on
which one of these levers 2 is secured is operated by a handle or hand lever d,
as in the previously described arrangement.
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
First. In
connection with the driving gear of paper making and other
machinery, the method of stopping and starting and regulating the speed of the
various parts by one set of mechanism substantially as herein described in
reference to and by way of application shown on the accompanying drawings.
Second. In connection with the driving gear of paper making and other
machinery, the arrangement in combination of mechanism for stopping, starting
and regulating the speed of the various parts substantially as herein described
in reference to and shown in the accompanying drawings.
Third. In connection with the driving gear of paper making and other
machinery, a hand regulating gear in combination with a loose pulley to form
a continuation of the cone pulley as a means of starting and stopping the various
parts of machine, substantially as herein described in reference to and shown
in the accompanying drawings.
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.