IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF MOULD CANDLES
Year: 1880

page_text: LETTERS PATENT to William Edward Nutt, of Hanworth Road, Hounslow,
in the County of Middlesex, for an Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF MOULD
CANDLES"
PROVISIONAL SPECIFICATION left by the said William Edward Nutt at
the Office of the Commissioners of Patents on the 31st December 1880.
WILLIAM EDWARD NUTT, of Hanworth Road, Hounslow, in the County of
Middlesex. "IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE
MANUFACTURE OF MOULD CANDLES."
My Invention has reference to the machines now commonly used for the
manufacture of mould candles with tapering lower ends, such as described in the
Specification to J. L. Field's Patent, No. 3032, of 1861. In these machines there
are fitted to the tops of the moulds for the cylindrical part of the candle separate
moulds for the tapering ends, which moulds, after the candles have been cast, are
raised together with these to a certain height above the cylindrical mould.
The
candles being held in this raised position, the said moulds for the tapering ends are
removed and lowered again and secured in position on the other part of the moulds,
these being provided with tapering enlargements at the end, into which corresponding
tapering parts of the moveable moulds fit.
According to my present Invention, instead of arranging the moulds for the
tapering ends to be raised up with the candles as described, I construct them in
two halves, so that after the candles have been cast, the said half moulds can be
opened out so as to allow the candle to be raised up between them, after which
they are brought together again for making the next set of candles.
For this purpose the frame containing a row of such moulds for the tapering
ends is divided longitudinally into two halves; each half mould has an extension or
nick at each end that passes through a slotted moveable transverse bar, and enters
a slot in a projecting plate at each end of the frame, against the inner faces of
which the said transverse bars can be moved up and down.
The two slots in each of the said plates have firstly lower portions that are
vertical and parallel to each other, while the upper portions diverge at a certain

page_text: angle from each other. From this arrangement it will be seen that when the
slotted transverse bars are raised, the half moulds will be raised thereby, firstly, a
certain distance without being moved apart, while, when by the continued upward
motion the nicks of the half moulds pass into the diverging parts of the slots, these
will cause the half moulds to move away from each other, such lateral motion being
permitted by the slots in the transverse bars. The length of the vertical parallel
parts of the first named slots is such, that the half moulds are first raised a sufficient
height without moving apart, for raising their lower tapering projections out of the
tapering enlargements of the cylindrical moulds, while the length of the diverging
parts of the slots is such as to cause the half moulds to move so far apart, that the
candles with their tapering ends can be raised up between them out of the
cylindrical moulds. After removal of the candles the half moulds are lowered
again, whereby they are first brought close together by the action of the angular
slots, and then descend with their tapering projections into the tapering parts of
the cylindrical moulds ready for casting the next set of candles. The simultaneous
raising and lowering of the two transverse bars carrying the half moulds may be
effected in any convenient manner, such as by means of fingers on shafts at the
ends of the machine, which fingers take into slots in the said bars, and are raised
and lowered by turning the said shafts simultaneously by means of a hand lever on
the one shaft connected to an arm on the other shaft by a connecting rod.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Edward Nutt in the Great Seal Patent Office on the
30th June 1881.
WILLIAM EDWARD NUTT, of Hanworth Road, Hounslow, in the County of
Middlesex. "IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE
MANUFACTURE OF MOULD CANDLES."
My Invention has reference to the machines now commonly used for the
manufacture of mould candles with tapering lower ends, such as described in the
Specification of J. L. Field's Patent, No. 3032, of 1861. In these machines there
are fitted to the tops of the moulds for the cylindrical part of the candle separate
moulds for the tapering ends, which moulds after the candles have been cast are
raised together with the candles to a certain height above the cylindrical moulds.
The candles being held in this raised position, the said moulds for the tapering ends
are removed and lowered again and secured in position on the other part of the
moulds, these being provided with tapering enlargements at the end, into which
corresponding tapering parts of the movable moulds fit.
According to my present Invention, instead of arranging the moulds for the
tapering ends to be raised up with the candles as described, I construct them in
halves, so that after the candles have been cast the said half moulds can be opened
out so as to allow the candles to be raised up between them, after which they are
brought together again for making the next set of candles.
For this purpose the frame containing a row of such moulds for the tapering ends
is divided longitudinally into halves; each half mould frame has an extension or
neck at each end that passes through a slotted movable transverse bar and enters a
slot in a projecting plate at each end of the frame, against the inner faces of which
the said transverse bars can be moved up and down.
The slots in each of the said plates have firstly lower portions that are vertical
and parallel to each other, while the upper portions diverge at a certain angle from
each other. From this arrangement it will be seen that when the slotted transverse
bars are raised, the half moulds will be raised thereby, firstly, a certain distance
without being moved apart, while when by the continued upward motion the necks
of the half moulds pass into the diverging parts of the slots, these will cause the
half moulds to move away from each other, such lateral motion being permitted by
the slots in the transverse bars. The length of the vertical parallel parts of the
first named slots is such that the half moulds are first raised a sufficient height
without moving apart for raising their lower tapering projections out of the
tapering enlargements of the cylindrical moulds, while the length of the diverging
parts of the slots is such as to cause the half moulds to move so far apart that the
candles with their tapering ends can be raised up between them out of the
cylindrical moulds. After removal of the candles the half moulds are lowered
again, whereby they are first brought close together by the action of the angular
slots, and then descend with their tapering projections into the tapering parts of the
cylindrical moulds ready for casting the next set of candles. The simultaneous
raising and lowering of the two transverse bars carrying the half moulds may be
effected in any convenient manner, such as by means of fingers on shafts at the
ends of the machine, which fingers take into slots in the said bars, and are raised
and lowered by turning the said shafts simultaneously by means of a hand
lever on the one shaft connected to an arm on the other shaft by a connecting
rod.
Figure 1 of the annexed Drawings is a plan, Figure 2 a side elevation, and
Figure 3 an end elevation of so much of one of my improved machines as is

page_text: necessary to show how my Invention may be carried into effect. a, a, represent
the frames, each of which contain a row of moulds b, b, for the tapering ends of the
candles; these frames are divided longitudinally into halves, as seen in Figure 1.
Each of the half mould frames has at each end an extension or neck c, c, which
passes through a slotted transverse bar d and enters a slot e, e¹, in a projecting
plate f, against the inner face of which the bar d can move up and down. The
portions of the necks c, c, which work in the slotted bars & are made square, and
the portions which work in the slots e, e¹, are round. The slots in the plate ƒ have
firstly vertical parts e and then diverging parts e¹, so that when the slotted bars d
are raised the half mould frames a, a, will be raised thereby, firstly, a certain
distance equal to the extent of the vertical part e of the slots in the plates f
without being moved apart, and then by the action of the diverging part e¹ of the
slots the continued upward motion of the half mould frames will be combined with
a lateral motion sufficient to move them far enough apart to allow the candles
with their tapering ends to be raised up between them. After the candles have
been removed the parts are returned to their normal position. The raising and
lowering of the transverse bars d, d, is effected by fingers g, g, on.rocking shafts h, h,
which fingers take into slots i, i, in the said bars. The shafts h, h, are turned
simultaneously so as to effect the simultaneous raising or lowering of the two
bars d, d, by means of a hand lever on the one shaft, connected by gearing
l, m, n, o, with the other shaft.
Having now described the nature of my said Invention, and in what manner the
same is to be performed, I declare that I claim,-
Constructing machinery or apparatus for the manufacture of mould candles of
the kind herein referred to, with the moulds for the tapering ends divided into
halves, and with means of opening out the halves to allow the candles to be raised
up between them, substantially as herein before described and represented in the
annexed Drawings.
In witness whereof, I, the said William Edward Nutt, have hereunto set my
hand and seal, this Thirtieth day of June, One thousand eight hundred
and eighty one.