IMPROVEMENTS IN. MACHINES EMPLOYED IN MOULDING TOOTHED WHEELS to be as follows:
Year: 1884

page_text: I JOHN WHITTAKER of Sun Iron Works Oldham in the County of Lancaster
Engineer do hereby declare the nature of my invention for "IMPROVEMENTS IN.
MACHINES EMPLOYED IN MOULDING TOOTHED WHEELS to be as follows:-
"
This invention is applicable to wheel moulding machines of various constructions,
the object of the invention being to adapt such machines to the special purpose of
moulding helical or double helical toothed wheels wherein. the teeth are parallel to
each other but are at an angle to the axis of the wheel, or what are known as
"skew bevil" wheels.
In moulding wheels by machinery it is usually the practise to withdraw the
pattern from the sand either vertically or horizontally according to the con-
struction of the machine, or the wheel to be made, but it is difficult or altogether
impracticable to withdraw the pattern of the teeth of the class above described'
from the sand by the ordinary machine, and in order to facilitate the moulding
of this class of wheels, I propose to attach to the ordinary machine a slide so
constructed and arranged that it can be adjusted at any angle so as to work either
horizontally vertically or diagonally as may be required for withdrawing the
patterns of this, class of teeth from the sand.
•
The pattern carrier is also attached to the slide by a universal joint so that it
can be set at any required angle with regard to the slide and by these means
I am enabled to mould helical or skewed toothed wheels by means of the ordinary
moulding machine.
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester.

page_text: I, JOHN WHITTAKER of Sun Iron Works Oldham in the county of Lancaster,.
Engineer do hereby declare the nature of my invention for IMPROVEMENTS IN
MACHINES EMPLOYED IN MOULDING TOOTHED WHEELS and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:
This invention is applicable to wheel moulding machines of various constructions,
the object of the invention being to adapt such machines to the special purpose of
moulding helical or double helical toothed wheels, wherein the teeth are parallel to
each other but are at an angle to.the.axis of the wheel, or what are known as
skew. bevel wheels.
In moulding wheels by machinery it is usually the practise to withdraw the
pattern from the sand either vertically or horizontally according to the con-
struction of the machine, or the wheel to be made, but it is difficult or altogether
impracticable to withdraw the pattern of the teeth of the class above-described
from the sand by the ordinary machine, and in order to facilitate the moulding
of this class of wheels, I propose to attach to the ordinary machine a slide so
constructed and arranged that it can be adjusted at any angle so as to work either
horizontally, vertically or. diagonally as may be required for withdrawing the
patterns of this class of teeth from the sand.
The mould carrier is also attached to the slide by a universal joint so that it can
be set at any required angle with regard to the slide and by these means I am
enabled to mould helical or skewed toothed wheels by means of the ordinary"
moulding machine.
(:
In the drawing accompanying this specification Fig. 1 is a side elevation and
Fig. 2 an end view of my improved slide and tool carrier. It will be seen that the
slide a a is fitted with a universal joint 6 b¹ the former part b of which works, on a
vertical axis and the latter bl on a horizontal one, so that it can be set to move
diagonally to any angle required.
The arm or mould carrier c c is also provided with a similar universal joint did'
for the same purpose, and it will be evident that by the combination of these two.
universal joints, not only can the slide be set to move to and fro diagonally at any
angle required, but that also the mould carrier may be adjusted to any desired
angle with regard to the slide, and, hence the moulding of helical spur wheels and
skewed bevel wheels will be greatly facilitated as the. mould or pattern can, be
caused to enter and leave the sand in any direction and at any angle..
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
The combination in a toothed wheel moulding machine of a slide having a
universal joint with a mould carrier having a similar universal joint so that the
pattern can be pressed against the sand and removed therefrom in any direction
and at any angle required, to facilitate the moulding of helical spur wheels and
skewed bevel wheels on such machines.
Dated this 22nd day of January 1885.