Machines for Tearing and Opening Fibrous Substances.
Year: 1885

page_text: Machines for Tearing and Opening Fibrous Substances.
I WILLIAM TATHAM of Vulcan Works Rochdale in the county of Lancaster
Machine Maker do hereby declare the nature of my said invention for IMPROVE-
MENTS IN OR APPLICABLE TO MACHINES FOR CARDING AND MACHINES FOR TEARING
AND OPENING FIBROUS SUBSTANCES to be as follows:-
:-
My Invention hus reference to the cylinders of the machines above referred to.
The common method of fixing the shaft or axle in the cylinders of the aforesaid
machines has hitherto been as follows. After fitting the shaft or axle into the
holes formed in the centre bosses of the cylinder, wedge shaped keys are driven
tightly into corresponding key ways formed in the boss and on the shaft and thus
securely fixed. This method is objectionable and has been a source of great trouble
and inconvenience in fixing or replacing a shaft and there has been much uncertainty
in fixing the shaft in the centre of the cylinder as the key acting on one side of
the shaft is almost certain to push it out of its true central position in the cylinder
which it ought to occupy thus causing the cylinder to revolve excentrically with
the shaft and to be out of balance evils which are troublesome and often difficult
to remedy.
My Invention consists in combining with machines for carding and with machines
for tearing and opening fibrous substances improved arrangements and constructions
of those parts of the cylinder of the aforesaid machines in which the shaft or axle
is fixed and which arrangement and construction allows of the shaft being more
easily fixed more easily removed from and replaced in the cylinder with a certainty
that it will when fixed be in the centre of the cylinder which in most instances is
not so in the ordinary modes of fixing.
The aforesaid improved arrangement and construction have reference to the
central bosses of the cylinder or of the rings or arms which carry the cylinder.
These bosses are bored out in the usual manner to fit the shaft and are then cut
open or divided on one or both sides and the side or sides of the bosses which are
cut open have flanges through which setscrews or bolts pass and by which the
flanges can be drawn together so as to cause the divided bosses to close and firmly
grip the shaft and bring it into a true position in the centre of the cylinder.
According to another arrangement of my invention after boring and dividing the
bosses as before mentioned I fit a hoop on each boss having in it a set-screw so
that when the point of the set screw is forced against one side of the boss it closes
on the shaft and grips it firmly in the centre of the cylinder.

page_text: Machines for Tearing and Opening Fibrous Substances.
I WILLIAM TATHAM of Vulcan Works, Rochdale, in the County of Lancaster
Machine Maker 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:-
My invention has reference to the cylinders of the machines above referred to.
The common method of fixing the shaft or axle. in the cylinders of the aforesaid
machines has hitherto been as follows. After fitting the shaft or axle into the
holes formed in the centre bosses of the cylinder, wedge shaped keys are driven
tightly into corresponding key ways formed in the boss and on the shaft and thus
securely fixed. This method is objectionable and has been a source of great trouble
and inconvenience in fixing or replacing a shaft and there has been much uncertainty
in fixing the shaft in the centre of the cylinder as the key acting on one side of the
shaft is almost certain to push it out of its true central position in the cylinder
which it ought to occupy thus causing the cylinder to revolve excentrically with
the shaft and to be out of balance, evils which are troublesome and often difficult
to remedy. My invention consists in combining with machines for carding and
with machines for tearing and opening fibrous substances, improved arrangements
and constructions of those parts of the cylinder of the aforesaid machines in which
the shaft or axle is fixed and which arrangements and constructions allows of the
shaft being more easily fixed, more easily removed from and replaced in the
cylinder with a certainty that it will when fixed be in the centre of the cylinder
which in most instances is not so in the ordinary modes of fixing. The aforesaid
improved arrangement and construction have reference to the central bosses of the
cylinder or of the rings or arms which carry the cylinder. These bosses are bored
out in the usual manner to fit the shaft, and are then cut open or divided on one
or both sides and the side or sides of the bosses which are cut open have flanges
through which set screws or bolts pass and by which the flanges can be drawn
together so as to cause the divided bosses to close and firmly grip the shaft and
bring it into a true position in the centre of the cylinder.
According to another arrangement of my invention after boring and dividing
the bosses as before mentioned, I fit a hoop on each boss having in it a set screw
so that when the point of the set screw is forced against one side of the boss it
closes on the shaft and grips it firmly in the centre of the cylinder.
. Fig. 1 is an end view, and fig. 2 a section at the line A-B fig. 1 illustrating one
modification of my invention; fig. 3 is an end view and fig. 4 a sectional view
through the line C-D fig. 3 illustrating another mode of carrying out my
invention.
a in figs. 1 and 2 represents the rings or arms and rings of the cylinder a¹
having a central boss a formed as shown and cast solid or in one connected piece
then bored out to fit the shaft b as accurately as possible.
Then the boss is cut or slit through on each side, and bolts or screws a³ are
passed through the lugs on each side so as to draw the two halves of the boss
together to firmly grip the shaft b.

page_text: In figs. 3 and 4 the boss a³ and part of the arms are shown; in this modification
also the boss a' is cast solid or in one connected piece and is then bored out to fit
the shaft b and has then a hoop c or hoops placed upon it with one or more set
screws c¹ screwing through the hoop e the point of the screw coming against the
boss a³ and thus drawing the two halves of it together to firmly grip the shaft b.
There may be two set screws c³ in the hoop or hoops (c) on opposite sides of
the shaft b.
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
In machines for carding and for tearing and opening fibrous materials the
construction and combination of the rings or arms or the bosses of the rings or
arms of the cylinders with their shafts substantially as hereinbefore described and
illustrated by the drawings.