IMPROVEMENTS IN FUNCHING HOLES IN LEATHER AND OTHER SIMILAR MATERIALS, AND IN THE MACHINERY OR APPARATUS EMPLOYED THEREFOR." MACHINERY OR APPARATUS EMPLOYED THEREFOR.
Year: 1872

page_text: LETTERS PATENT to John Keil Tullis, of Glasgow, in the County of
Lanark, North Britain, for the Invention of "IMPROVEMENTS IN
FUNCHING HOLES IN LEATHER AND OTHER SIMILAR MATERIALS, AND IN THE
MACHINERY OR APPARATUS EMPLOYED THEREFOR."
MACHINERY OR APPARATUS EMPLOYED THEREFOR.'
"
PROVISIONAL SPECIFICATION left by the said John Keil Tullis at
the Office of the Commissioners of Patents, with his Petition, on
the 1st January 1872.
I, JOHN KEIL TULLIS, of Glasgow, in the County of Lanark, North
Britain, do hereby declare the nature of the said Invention of "In-
PROVEMENTS IN PUNCRING HOLES IN LEATHER AND OTHER SIMILAR MATERIALS, AND
IN THE MACHINERY OR APPARATUS EMPLOYED THEREFOR," to be as follows, that
is to say :-
This Invention relates to the arrangement and construction of
mechanism for punching holes in or perforating leather and other
similar materials in order to render the same fit for receiving rivets
at places where the leather or other similar material is jointed; and it

page_text: has for its object to effect the said operation more speedily and more
economically than hitherto accomplished.
A special object of this Invention is to facilitate the manufacture of
leather hose by punching the holes in each side of the material at one
operation.
The mechanism by means of which the said punching or perforating
operations are performed consists of a framing on which a revolving
shaft provided with cams, wipers, or eccentrics is situated, and these as
they revolve act upon and depress a carrier wherein the punches are
situated. Parallel with the punch carrier is a pair of drawing rollers, one
or both of which are or may be made of vulcanite or other elastic
material;
these drawing rollers are driven by ratchet and pall or other
similar gearing from the driving shaft of the machine, thus causing the
drawing rollers to be revolved intermittently and to an extent equal to
the distance between the number of holes punched at each operation.
The leather or other material to be punched or perforated is passed
underneath the punch carrier, which is also provided with pins for
steadying the said material during the punching operations, these being
moveable so as to allow the punch carrier to descend to the required
extent, and provided with springs to ensure the necessary degree of
pressure. These steadying pins by reason of the downward pressure of
the springs also prevent the leather from being lifted by the punches
after a hole or set of holes has been formed, and relcase the material
from the punches as they rise, thus leaving it free to be drawn forwards
by the drawing rollers (between which the punched portion passes) for
the succeeding punching operation.
It is to be understood that with the machine herein-before described
one or several punches may be used so as to punch one or several holes
at each punching operation.
In place of fixing the punches in a reciprocating carrier they may be
placed radially in a wheel, disc, or cylinder, which as it revolves acts
upon the leather and forces the punches into it, at the same time serving
to draw the leather forwards.

page_text: SPECIFICATION in pursuance of the conditions of the Letters ratent,
filed by the said John Keil Tullis in the Great Seal Patent Office
on the 1st July 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
KEIL TULLIS, of Glasgow, in the County of Lanark, North Britain,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of January, in the year of
our Lord One thousand eight hundred and seventy-two, in the 35th
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said John Keil Tullis, Her special license that I,
the said John Keil Tullis, my executors, administrators, and assigns,
or such others as I, the said John Keil Tullis, my executors, adminis-
trators, or assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN PUNCHING
HOLES IN LEATHER AND OTHER SIMILAR MATERIALS, AND IN THE MACHINERY OR
APPARATUS EMPLOYED THEREFOR," upon the condition (amongst others) that
I, the said John Keil Tullis, by an instrument in writing under my hand
and seal, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said John Keil Tullis, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings,

page_text: places where the leather or other similar material is jointed; and it
has for its object to effect the said operation more speedily and more
'economically than hitherto accomplished.
A special object of this Invention is to facilitate the manufacture of
leather hose by punching the holes on each side of the material at one
operation.
The mechanism by means of which the said punching or perforating
operations are performed consists of a framing on which a revolving
shaft provided with cams, wipers, or eccentrics is situated, and these as
they revolve act upon and depress a carrier wherein the punches are
situated. Parallel with the punch carrier is a pair of drawing rollers,
one or both of which are or may be made of vulcanite or other elastic
material; these drawing rollers are driven by ratchet and pall or other
similar gearing from the driving shaft of the machine, thus causing the
'drawing rollers to be revolved intermittently and to an extent equal to
the distance between the number of holes punched at each operation.
The leather or other material to be punched or perforated is passed
underneath the punch carrier, which is also provided with pins for
steadying the said material during the punching operations, these being
moveable so as to allow the punch carrier to descend to the required
extent, and provided with springs to ensure the necessary degree of
pressure. These steadying pins by reason of the downward pressure
of the springs also prevent the leather from being lifted by the punches
after a hole or set of holes has been formed, and release the material
from the punches as they rise, thus leaving it free to be drawn forwards
by the drawing rollers (between which the punched portion passes) for
the succeeding punching operation.
It is to be understood that with the machine herein-before described
O holes

page_text: other similar materiais; Figure 2 is a plan thereof, winst Figure ɔ is a
side elevation of the same.
As shewn by the Drawings the frame of the machine consists of two
strong metallic standards A braced together by stays or tie bolts B and
an arched piece C. Situated in bearings D, which are formed in or
attached to the metallic standards A, is a revolving shaft E provided
with two cams F, which in revolving act upon and depress studs a
situated in slots formed in two vertical slide bars G, which are supported
in guide blocks b attached to the metallic standards A. At the upper
extremities of the vertical slide bars G are formed bearings c for
supporting a carrier H, wherein the punch holders H' are situated. One
of the bearings c is provided with a pinching screw d, which on being
loosened admits of the carrier H being revolved so that the under part
can be easily got at. The vertical slide bars G are connected at their
lower extremities by means of a tie bar I, to which is attached the lower
ends of two strong spiral springs J, the upper ends of which are attached
to the framing of the machine. By means of the strong spiral springs J
the vertical slide bars G on being released from the depressing action of
the cams F are raised back to their uppermost position in readiness to be
again depressed by the action of the cams F. Parallel with the carrier H
is a pair of drawing rollers K and L respectively which are carried in
bearings f, Figures 2 and 3, formed at the upper part of the metallic
standards A. The surface of the central part of the roller L is made of
vulcanite or other elastic material in order to allow of its yielding when
rivets or other similar obstructions which may be in the leather or other
similar material while being punched are passing between them. In
order to enable the drawing rollers K and L respectively to obtain a
sufficient pressure on the leather or other similar material while being
drawn through them, the upper drawing roller K has a bridge M
arranged above it, and the extremities of which bridge rest upon the
bearings of the roller K. The bridge M is surmounted with a spring N,
which is acted on by means of a screw g and hand wheel O, supported in
the centre of the arched piece C of the framing for adjusting the pressure
as required. A spur pinion P is situated at one end of the axis of the
roller K which gears with a spur wheel Q on the axis of the roller L,
which also carries a spur pinion R gearing with a spur wheel S, which
revolves on a stud h fixed in the standards A. Attached to the spur

page_text: wheel S is a ratchel wheel T, which is actuated by means of a pall i
attached to the upper extremity of a lever U, whilst the lower extremity
of this lever in which a slot k is formed is connected by means of a
rod to an eccentric V situated on the revolving shaft E. The rod is
attached to the lever U by means of a pin m which passes through the
slot k, and this pin is firmly secured therein by a nut n. The throw of
the lever U may be regulated or altered by shifting the position of the
pin m in the slot k, shewn more particularly at Figure 3 of the
Drawings. It is obvious on referring to the Drawings that as the
shaft Eis revolved the motion of the eccentric V elevates the lower
extremity of the lever U, thereby pressing the pall i against or into the
teeth of the ratchet wheel T, and as it is revolved a corresponding
motion is conducted through the spur wheels and pinions to the drawing
rollers K and L respectively, whereby they are revolved intermittently
and at each interval to an extent corresponding to the distance between
the holes punched at each operation. The drawing roller L is provided
with a friction pulley W (shewn at Figure 2 of the Drawings) round
which a chain p passes; the ends of the chain p are attached to a spiral
spring, shewn at Figure 1, which is secured to the standard A. The
object of the friction pulley W is to put a strain on the drawing roller L
and prevent its being revolved too easily. Situated at the upper part of
the machine below the carrier H is a table Y which is supported by the
standards A, and upon it is placed a pair of adjustable guides 8, which
are secured thereto and adjusted to the width of the material to be
punched by means of bolts and nuts t situated in slots u formed in the
table Y. At the front edge of the table Ya guage rod e¹ carrying a pair
of adjustable guages f¹ is placed.
At Figures 4 and 5 are shown a detailed front elevation and plan

page_text: Drawings. The punch holders H' are firmly secured in the carrier H by
means of bolts x, which pass up through blocks y situated on the upper
part of the carrier H, and are tightened in position by means of the
nuts z.
The punch holders H' are provided with pins a¹, shewn more
particularly at Figure 6, for steadying the material during the punching
operation, these being movable so as to allow the carrier H to descend
with the punches to the required extent. Placed around the pins a¹
are spiral springs 6', by means of which the necessary degree of pressure
is obtained. These steadying pins a¹ by reason of the downward
pressure of the springs b' also prevent the leather from being lifted
by the punches after a hole or set of holes has been formed, and releaso
the material from the punches as they rise, thus leaving it free to be
drawn forwards by the drawing rollers K and L respectively. The roll
of leather D¹ or other similar material to be punched is carried on a
rod c² which rests in bearings formed in the front edge of the standards A,
and one end is passed up between the guages f¹ and through the
adjustable guides & below the punches u, and from thence between the
drawing rollers K and L respectively, in the direction shewn by the
arrows. Situated at one extremity of the revolving shaft E is a fast and
loose pulley A³, round which the belt passes for driving the machine; at
the other extremity of the shaft E is a fly wheel B', by means of which

page_text: at intervals corresponding with the intermittent drawing forwards of
the material being punched, or any mere modification by which these
conjoint operations may be affected.
In witness whereof, I, the said John Keil Tullis, have hereunto set
my hand and seal, this Twenty-eighth day of June, One thousand
eight hundred and seventy-two.