IMPROVEMENTS IN MACHINES FOR MOULDING WHEELS
Year: 1869

page_text: LETTERS PATENT to John Whittaker, of the Sun Iron Works, Oldham,
in the County of Lancaster, for the Invention of "IMPROVEMENTS IN
MACHINES FOR MOULDING WHEELS."
Sealed the 19th October 1869, and dated the 23rd April 1869.
PROVISIONAL SPECIFICATION left by the said John Whittaker at
the Office of the Commissioners of Patents, with his Petition, on
the 23rd April 1869.
I, JOHN WHITTAKER, of the Sun Iron Works, Oldham, in the County
of Lancaster, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINES FOR MOULDING WHEELS," to be as follows:-
My Invention relates to machines used for forming in the sand the
moulds in which toothed wheels and articles of a similar form are to be
cast. It consists of a foundation plate, in a hole about the centre of which
turns a short shaft or axis which carries a worm wheel such as is used
in the ordinary machines for cutting the teeth of wheels, and is furnished
with a worm and shaft and pinions in the same manner. At the upper
end of the shaft or axis which carries the worm wheel is a face plate, on
which is placed and secured the moulding box in which the mould is

page_text: to be formed. At one side of the foundation plate and connected with
it is an upright pillar, at the top of which is an horizontal slide which
extends towards the centre of the foundation plate. The moveable part
of this slide is furnished at its extremity with a vertical slide, at the
lower end of which is fixed the pattern or segment which is to form
the spaces in the sand, which by receiving the melted metal form the
teeth or other parts of the rim of the wheel. The position of the
moveable part of the horizontal slide is regulated according to
the diameter of the wheel for which the mould is to be formed, and
is effected by means of an adjusting screw or rack and pinion. The
upright pillar before mentioned I generally make of a cylindrical form,
so as to turn in a hole or socket attached to the foundation plate, so
as to be raised or lowered, or turned and secured in any position which
may be required. Through the short shaft or axis which carries the
worm wheel and face plate passes a circular hole, through which can
be passed a cylindrical bar from below, at the upper end of which a
cross bar of wood or metal can be fixed, which by turning round levels
the surface of the sand in the moulding box.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Whittaker in the Great Seal Patent Office
on the 23rd October 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WHITTAKER, of the Sun Iron Works, Oldham, in the County of
Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of April, in the year
of our Lord One thousand eight hundred and sixty-nine, in the
thirty-second year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said John Whittaker, Her
special license that I, the said John Whittaker, my executors, adminis-
trators, and assigns, or such others as I, the said John Whittaker,
my executors, administrators, 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
lawfully might
make, use, exercise, and vend, within the United Kingdom of Great

page_text: Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN MACHINES POR MOULDING WHEELS," upon
the condition (amongst others) that I, the said John Whittaker, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same is 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 Whittaker, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and the accompanying Sheet of Drawings, that is
to say :-
My Invention relates to machines used for forming in the sand the
moulds in which toothed wheels and other articles which are generally
of a circular form are to be cast. It consists of a foundation plate or
frame at the centre of which is a hollow stud or boss on which a table
or face plate revolves, which last carries a worm wheel such as is used
in the ordinary machine for cutting toothed wheels, and is furnished
with a worm and shaft and pinions in the same manner. On the table
or face plate is placed and secured the moulding box in which the
mould is to be formed. At one side of the foundation plate or frame
and connected with it is an upright pillar, at the top of which is au
horizontal slide. The moveable part of this slide is furnished at its
extremity with a vertical slide, at the lower end of which is fixed the
pattern or segment which is to form the spaces in the sand, which by
receiving the melted metal form the teeth or other parts of the rim of
the wheel. The position of the moveable part of the horizontal slide is
regulated according to the diameter of the wheel for which the mould is
to be formed, and which is effected by means of an adjusting screw or
rack and pinion. The upright pillar before mentioned I make of a
cylindrical form so as to turn in a hole or socket attached to the foun-
dation plate or frame, and so as to be raised or lowered, and turned, and
secured in any position which may be required. Through the boss at
the centre of the foundation plate or frame passes a hole, through which
can be passed a cylindrical bar, at the upper end of which a cross bar of
wood or metal can be fixed, which by turning round levels and strickles

page_text: the surface of the sand in the moulding box to the form that may be
required. On the cylindrical bar being removed and its place left
vacant, I can, if required, insert a vertical pillar carrying a dividing plate,
handle, and shaft, and thus communicate motion from the upper side of
the face plate or table to the worm and dividing wheel by means of
a pair of bevils, and shaft, and carrier wheels.
In order to make my Invention more clearly understood I have here-
unto annexed a Sheet of Drawings to which the following description
relates, in which the same letters or letters and figures of reference
indicate the same parts.
Figure 1 represents a side elevation of the machine, and Figure 2 a
plan of the same. A, A, foundation plate or frame which supports the
moveable or adjustable parts of the apparatus; A1, Al, hollow stud or
boss about the centre of the frame; A, A, B, B, table or face plate, on
which the moulding box is fixed by means of a key sliding in the
grooves B1, B1, or otherwise; B2, B2, a rim cast underneath the table B, B,
which by moving on the upper surface of the frame A, A, assists in
supporting or steadying the table B, B; B3, B3, worm wheel of the
dividing apparatus, which is attached underneath to the table B, B, and
is moved by the worm A5, shaft A4, pinions A3, and handle A2, which
parts are supported from the frame A, A, and are of the usual construc-
tion; C, C, socket attached to the frame A, A, by the flanges and bolts
at C1, C1; D, D, cylindrical pillar passing through the socket C, C, in
which it can turn; C2, C2, handle pinion and rack attached to the
socket C, C, by which the pillar D, D, can be raised and lowered to suit
the depth of the wheel to be moulded; C3, C3, set screws by which the
pillar D, D, is secured after being adjusted so its proper position; E, E,
fixed part of the horizontal slide or arm, which is attached to the
pillar D, D, by the flange and bolts at D1, D1; E1, E1, moveable part of
the horizontal slide; E2, E2, screw by which the moveable part of the
slide El, El, is moved and adjusted; E3, wheel by which the screw E2
is moved; F, F, moveable part of the vertical slide (fixed at the extre-
mity of the slide El); at its lower end it carries a socket F1 in which
turns a short shaft or axis which carries at its lower end the pattern or
segment F2 which forms the spaces in the sand. The segment F2 being
adjusted to its proper position it is secured by the set screw F3; F4,
wheel connected to a short shaft, on which is a ratchet and pinion which
takes into a rack on the slide F, F, by which the segment F2 is lowered

page_text: on to the sand and withdrawn, and the extent of its motion adjusted by
the position of the stop F5. The segment F2, to be moulded from is
readily set to the required radius by moving it to or from the centre of
the table B, B, in the direction of the arc x, y, using the pillar D, D,
turning in the socket C, C, as a centre or axis, and then securing it by
the set screws C3, C3. The socket C, C, and pillar D, D, are SO
constructed that they can be removed, and the slide E attached to the
table B, B.
Figure 3 represents a section of the apparatus or hollow pillar before
mentioned. G, G, vertical pillar to be inserted and secured in the hole
of the hollow stud or boss A1, Al. This pillar has a hole through it
through which passes the shaft G1, G1. At the upper end of this pillar
is fixed the dividing plate, and at the top of the shaft G1, G1, is fixed the
handle (shewn in plan in Figure 4). G2 bevel wheel at the lower end
of the shaft G1, G1, by which motion is communicated to an horizontal
shaft, and from thence to the shaft A4, and worm A5 by means of a
shaft and carrier wheels. The handle A2, and the dividing plate are of
course removed when this arrangement is made use of.
:
Figures 5 and 6 represent an elevation and plan of a moveable socket
which I propose to substitute in place of the fixed socket C, C, (shewn
in Figures 1 and 2,) which may be used when wheels of a larger size
than usual are to be moulded; H, H, the slide attached to the frame
A, A, at C1, C1; the socket C, C, is made to traverse and be adjusted
on the slide by means of the screw H1, H1.
Having thus described the nature of my Invention, and the manner in
which the same is to be performed, I would have it understood that I
do not confine myself to the precise details of the construction of the
several parts, as these may be varied; but that what I do claim as new,
and of my Invention is as follows:-
First. I claim the application of the socket C, C, and the rack
pinion and handle C2, C2, combined with the pillar D, D, as described.
Second. I claim the application of the slide or arm E, E, with its
appurtenances, as described.
Third. I claim the adaptation, arrangement, and combination of these
several parts, namely, the socket C, C, and the rack pinion and handle
C2, C2, with the pillar D, D, and the slide or arm E, E, and its
appurtenances as described.

page_text: Fourth. I claim the application of the hollow pillar and its appur-
tenances shewn in Figures 3 and 4 and described.
Fifth. I claim the application of the fixed hollow stud Al, Al, (on
which the table B, B, revolves) with the rim B2, B2, in combination
with the hollow pillar and its appurtenances shewn in Figures 3 and 4,
as described.
Sixth. I claim the adaptation and peculiar construction of the
holder F1 (of the pattern or segment F2) and its appurtenances by
which the segment can be turned and secured in any position with
respect to the centre of the table B, B, which may be required, as
described.
Seventh, and lastly. I claim the arrangement and combination of
the following parts, namely, the table B, B, and worm wheel B3, B3,
with the pillar D, D, and horizontal slide or arm E, E, adapted to each
other in such a manner that whilst the table B, B, and its appurtenances
are placed below the horizontal slide and its appurtenances are placed
above or at the upper part of the apparatus.
In witness whereof, I, the said John Whittaker, have hereunto set
my hand and seal, this Twenty-second day of October, in tho
year of our Lord One thousand eight hundred and sixty-nine.
Signed by the said John Whittaker
in the presence of,
JOHN POTTER, C.E.
59, Corporation Street,
JOHN WHITTAKER. (L.S.)
Manchester.