Improvements in Cutting or Trimming Machines.
Year: 1896

page_text: Date of Application, 7th Feb., 1896
Complete Connitention tatt
4006 Accented
22nd Jan 1007
PROVISIONAL SPECIFICATION.
Improvements in Cutting or Trimming Machines.
We, HENRY JELLEY of 1, Rothsay Terrace, Coventry in the County of
Warwickshire, Manager, and CHARLES HUBBARD of Whitley Villa, Whitley
near Coventry, in the county aforesaid, Works Manager, do hereby declare the
nature of this invention to be as follows:-
This invention relates to an improved cutting machine specially adapted for
trimming the edges of the rubber covers or treads used in the construction of
pneumatic tyres, and it consists essentially of a revolving circular cutter, of an
adjustable table and of an adjustable guide.
The cutter is. mounted on the end of an axle mounted in a suitable headstock and
fitted with fast and loose pulleys. Immediately under the cutter is a table which
is pivotted to a bracket carried by the frame of the machine at a convenient
distance from the cutter. This hinged table is capable of being raised or lowered
with respect to the cutter by means of a screw in the ordinary manner. On to the
bracket to which the table is hinged is pivotted an arm extending over the table
and carrying at its end a pair of guides for guiding the rubber cover or tread past
the knife, the guides being adapted to bear against the projections on the cover or
tread forming its non-slipping face. These guides are preferably so mounted as to
be capable of adjustment with respect to each other and also with respect to the
edge of the cutter, and the arm carrying the said guides is preferably so pivotted
that although it can be turned round clear of the table in one direction it can only
swing in the other direction until it is in its true position with respect to the
cutter.
The cutter may either have a central cutting edge i.e. with bevels on both sides
in which case it is adapted to cut on the face of the table, which is preferably lined
with zinc, or it may be made with the cutting edge on one side i.e. with a bevel on
one edge, in which case it may cut against the edge of the table.
Dated this 7th don of Wahme 1808
Improvements in Cutting or Trimming Machines.
We, HENRY JELLEY of 1, Rothsay Terrace, Coventry in the County of
Warwickshire, Manager, and CHARLES HUBBARD of Whitley Villa, Whitley
near Coventry, in the county aforesaid, Works Manager, 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 :-
This invention relates to an improved cutting machine specially adapted for

page_text: trimming the edges of the rubber covers or treads used in the construction of
pneumatic tyres, and it consists essentially of one or more revolving circular cutters,
of an adjustable table and of one or more adjustable guides.
In the accompanying drawing which illustrates this invention:-
Figure 1 is a view in front elevation and
Figure 2 is a view in plan thereof.
Figure 3 is a view in front elevation of a modification in which two cutters are
used, and
Figure 4 is a view thereof in end elevation:
Throughout the views similar parts are marked with like letters of reference.
Referring to Figures 1 and 2, the cutter A is mounted on the end of an axle B
carried in a suitable headstock C and is fitted with fast and loose pulleys for
driving purposes. Immediately under the cutter A is a table D which is pivotted
to a bracket E carried by the frame F of the machine at a convenient distance
from the cutter. This hinged table D is capable of being raised or lowered with
respect to the cutter A by means of a screw such as G. On to the bracket E to
which the table D is hinged is pivotted an arm H extending over the table and
carrying at its end a pair of guides J for guiding the rubber cover or tread past
the cutter, the said guides being adapted to bear against the projections on the
cover or tread X, forming its non-slipping face (see Figure 1). The guides J are
preferably mounted on a cross bar such as j so as to be capable of adjustment with
respect to each other (see Figures 3 and 4.) and the cross bar j is so attached to
the arm H carrying it that the position of the guides J with respect to the edge of
the cutter can be varied. The arm H carrying the guides J is pivotted to the
bracket E by a knuckle hinge so that although it can be turned round clear of the
table in one direction it can only swing in the other direction until it is in its true
position for acting as a guide with respect to the cutter.
When it is desired to cut both edges of the fabric or other material at one time
two cutters are used as shown by Figures 3 and 4. In this construction I prefer to
support the outer end of the axle B by a bracket such as C' and the position of at
least one of the cutters on the axle is made capable of adjustment to vary the width
between them by means of nuts or clamps such as a. The bracket E carrying the
hinged table D is mounted parallel to the axle carrying the cutters instead of at
right angles to it as in the construction shown by Figures 1 and 2 and the arm H
carrying the guides J is shaped as shown to allow it to clear the strip of fabric or
other material to be cut.
The fabric or other material is pushed or drawn by hand under the cutter or
cutters or it may he fed by means of rollers or any other suitable feeding
device.
.It will be obvious if the machine is intended to cut strips out of a width of
fabric or other material as many cutters may be used as the width of the machine
will permit.
The cutter may either have a central cutting edge i.e. with bevels on both sides
as shown in which case it is adapted to cut on the face of the table, which is
preferably lined with zinc, or it may be made with the cutting edge on one side
i.e. with a bevel on one edge in which case it may be cut against the edge of the
table.
We wish it to be particularly understood that we do not limit ourselves to the
precise details of construction herein before described and illustrated, but that we
hold ourselves at liberty to make such changes and alterations as fairly fall within
the spirit and scope of our invention.
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 :-
The improved machine for cutting and trimming the strips of fabric and other

page_text: material used in the construction of or forming the covers or other parts of
pueumatic tyres, as hereinbefore described with reference to the accompanying
drawing.
Dated thin 7th dow of December 1906
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.