IM- PROVEMENTS IN APPARATUS FOR DRILLING AND CUTTING HOLES IN WOOL COMB CIRCLES AND GILLS
Year: 1877

page_text: LETTERS PATENT to John Sunderland, of Fleece Mills, Keighley, in the
County of York, Hackle and Gill Manufacturer, for the Invention of "IM-
PROVEMENTS IN APPARATUS FOR DRILLING AND CUTTING HOLES IN WOOL
COMB CIRCLES AND GILLS."
Sealed the 13th October 1877, and dated the 21st April 1877.
PROVISIONAL SPECIFICATION left by the said John Sunderland at the
Office of the Commissioners of Patents on the 21st April 1877.
JOHN SUNDERLAND, of Fleece Mills, Keighley, in the County of York, Hackle
and Gill Manufacturer. "IMPROVEMENTS IN APPARATUS FOR DRILLING AND
CUTTING HOLES IN WOOL COMB CIRCLES AND GILLS."
This Invention consists in the use of apparatus whereby the drill or punch is
caused to enter the stock or head at a time when such stock or head is stationary,
or nearly so, and after the hole or holes, as the case may be, are drilled and the drill
or punch is clear of the stock or head, the advance or traverse for another hole is
made quickly, or comparatively so, to the ordinary method. For this purpose I
cause the drill or punch to enter the stock or head by means of a cam or tappet,
and when withdrawn, the advance or traverse of the head is effected by the use of
elliptical wheels (or other similar arrangement) in such a way that when the
elliptical wheels are at their slowest rate of motion the drill or punch is then
operating on the head or stock, and when the drill or punch is drawn back to clear
the stock the elliptical wheels before named are at their highest rate of motion, thus
effecting more quickly the advance or traverse of the head.
When drilling I sometimes prefer to effect the traverse of the head by means of
a crank pin rotating about its axis, which is caused to enter a radial groove and
to move through an arc of a circle; this last-named axis then remains stationary
until the crank pin comes round again and engages into the next radial groove on
the same axis, thereby causing the radial groove to move on its axis, by which
means the traverse is effected intermittently.
Or, as another modification, I make the cam or tappet that acts on the drill with

page_text: a series of swells of varying hights, so that the drill will, by the rotation of such
cam or tappet, be caused to enter and withdraw one or more times before the hole
is drilled, thus enabling the drill to clear itself of the borings.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Sunderland in the Great Seal Patent Office on the 20th
October 1877.
JOHN SUNDERLAND, of Fleece Mills, Keighley, in the County of York, Hackle
and Gill Manufacturer. "IMPROVEMENTS IN APPARATUS FOR DRILLING AND
CUTTING HOLES IN WOOL COMB CIRCLES AND GILLS."
This Invention consists in the use of apparatus whereby the drill or punch is
caused to enter the stock or head at a time when such stock or head is stationary,
or nearly so, and after the hole or holes (as the case may be) are drilled and the
drill or punch is clear of the stock or head, the advance or traverse of the stock or
head for another hole is made more quickly, or comparatively so, to the ordinary
method. For this purpose I cause the drill or punch to enter the stock or head by
means of a cam or tappet acting upon a lever of the first order that is attached to
the drill or punch spindle, and when the drill or punch is withdrawn by means of
a spring from the stock or head; the advance or traverse of the head is effected by
the use of elliptical wheels (or other similar arrangement, as herein-after described)
in such a way that when the elliptical wheels are rotating the worm or gearing in
connection with the stock or head plate at the slowest rate of motion the drill or
punch is operating on the head or stock, and when the drill or punch is drawn back
to clear the head or stock the elliptical wheels before named are rotating the worm
or gearing before described at the highest rate of motion, thus effecting more
quickly the advance or traverse of the head or stock.
As a modification I sometimes prefer to effect the traverse of the head by means
of a crank pin rotating about its axis, which pin is caused to enter a radial groove
on another axis, and thereby effecting the radial groove to move through an arc of
a circle ;
this last named axis then remains stationary until the crank pin comes
round again and engages in the next radial groove on the same axis, by which
means the traverse is effected intermittently.
Or, as another modification, I make the cam or tappet that acts on the before-
named lever of the first order, that is attached to the drill or punch spindle, with a
series of projections of varying distances from the centre of the cam or tappet, so
that the drill will, by the rotation of such cam or tappet, be caused to enter and
withdraw from the hole in the stock one or more times, according to the number
of projections before the hole is drilled, thus enabling the drill to clear itself of the
borings.
In order that my said Invention, and the manner of performing the same, may
be properly understood, I have hereunto appended one Sheet of Drawings illus-
trating the Invention, and such old parts of the machine as are necessary to
ellucidate the action of the apparatus.
Figure is a plan of my improved apparatus and such parts of the old machine
as are required to make my Invention more clearly understood; Figure 2 is an
end view; Figure 3 is a front view.
Figure 4 is a plan of a tappet having 3 projections.
Figure 5 is a plan shewing my modification for actuating the traverse of the
head or stock plate intermittently.
Figure 6 is a plan of the cam and the radial grooved face plate.
In all the Figures like letters and figures indicate like parts.
The pullies A and A¹ are fast and loose for the purpose of driving my improved
apparatus, to which motion is imparted by a strap in the ordinary manner.
These

page_text: pullies are mounted on the shaft B, which is supported by suitable journals. C is
an elliptical wheel secured on shaft B, and gears into another elliptical wheel D
that is mounted on a short shaft E and carried by suitable journals; on the other
end of this last-named shaft is a pinión F, which gears into a train of wheels G,
which can be so arranged and adjusted to divide and regulate the traverse of the
stock or head to the required pitch; these last-named wheels actuate the bevel
wheels H and H; this last-named wheel is mounted on the worm shaft J, which is
carried by suitable journals; the portion marked J' is a worm which gears into
the head or stock plate, or what is commonly termed the face or circle plate K,
the circumference of which at K¹ is grooved and cut with a thread corresponding
in pitch and gearing into the before-named worm. On to one end of the before-
named shaft B is fixed a bevel wheel L, which gears into another bevel wheel L'
mounted on a spindle and supported by the bracket M; on the top of this spindle
is a cam or tappet N, which makes one revolution to each revolution of the before-
named elliptical wheels; the lever O is centred on the fulcrum O¹; this lever is kept
in contact with the before said cam or tappet by means of spring P, which is
attached to one end of the same and to stand P¹; the other end of lever at R is
attached to the ordinary slide, which is connected to the drill or punch spindle S,
and thus at each revolution of the cam or tappet N the drill or punch spindle S is
actuated in a forward and backward direction to and from the stock or head one or
more times according to the number of projections on the said cam or tappet, which
projections are placed on the circumference of the same at right angles to the axis
of the cam or tappet. This cam or tappet N is so arranged that the drill or punch
is clear of the stock head or comb circle when the before-named elliptical wheels
are causing the rotation of the train of wheels G, and actuating the head or stock
plate K through the worm J¹ at the greatest speed'; and when the drill or punch
is operating upon the stock or head the elliptical wheels are actuating the said head
or stock plate K through the before-named wheels and worm at its slowest speed,
and thus the head or stock is brought nearly to a stand whilst the drill or punch is
operating upon the comb circle or gill.
Figure 5 represents a plan of by modified arrangement for giving an intermittent
motion to the head or stock plate; motion to the cam or tappet N is obtained in the
same manner, as shewn in Figures 1 and 3; this cam or tappet N is shewn with
three projections on the circumference of varying distances from the centre, but it
can be arranged with more or less projections to suit the material that is being
operated upon. On the under side of this cam or tappet is what I term a crank
pin T, which projects downwards; at each revolution of the said cam or tappet this
pin engages into one of the radial grooves or slots T¹ formed in the upper surface
of the rotary plate U, which is mounted on a spindle and carried by suitable
journals; towards the bottom end of this spindle I secure a spur wheel G, which
gears into a changable intermediate wheel G₁ that actuates the wheel G that is
secured on worm shaft J, and thus at each revolution of the cam when the drill or
punch is clear of the head or stock the same is moved intermittently, as herein-after
described. When the before-named crank pin T engages in any one of the radial
grooves or slots Tone of the projecting ends U¹ of the rotary plate U passes into
the recess formed in the ring V on the under side of the cam or tappet, and thus the
rotary plate is enabled to make a partial revolution and actuate the head or stock
plate the required distance. When the said pin disengages itself from any of the
radial grooves or slots, one of the circular recesses or concavities U2 formed in the
periphery of the rotary plate U fits against the periphery of the ring V, and thus
the rotary plate is locked in this position until the crank pin enters the next radial
groove or slot, when the rotary plate will make another partial revolution, and
thus actuate the head or stock plate intermittently. The cam or tappet N acts
upon the drill or punch spindle through the lever O, as shewn on Figure 1, in the
manner before described.
Figure 6 shews the crank pin T engaged in one of the radial grooves or slots, and
he projecting end U₁ in the recess formed in the ring V.

page_text: Having thus described my said Invention, and the manner in which the same is
or may be performed, I have to state that I do not restrict myself to the precise
details herein described and deliniated; but that what I believe to be novel and
original, and claim as the Invention secured to me by the herein-before in part
recited Letters Patent, is,-
First. The arrangement and combination of the various parts for producing a
quick speed or traverse to the stock or head plate, or what is more commonly
known as the circle or face plate, whilst the drill or. punch is clear of the comb
circle or gill; and when the drill or punch is in contact and acting on the comb
circle or gill, the circle or face plate is brought to, or nearly to, a stand, to allow the
drill or punch sufficient time to pierce the metal to the depth required, substantially
as herein-before described and illustrated by the accompanying Drawings.
Second. The arrangement and combination of a lever with a cam or tappet
with one or more projections on the circumference at right angles to the axis of the
same, which projection or projections actuate through the said lever the drill or
punch spindle in a forward direction towards the head or stock plate, substantially
as herein-before described and illustrated by the accompanying Drawings.
Third. The arrangement of a spring or springs in combination with the lever
named in Clause No. 2, which actuates the drill or punch spindle in a backward
direction from the said stock or head plate, substantially as herein-before described
and illustrated by the accompanying Drawings.
In witness whereof, I, the said John Sunderland, have hereunto set my
hand and seal, this Nineteenth day of October, in the year of our Lord Ono
thousand eight hundred and seventy-seven.
Witness,
JOHN WAUGH,
Engineer and Patent Agent,
29, Tyrrel Street,
Bradford,
Yorks.
JOHN SUNDERLAND. (L.S.)