Improvements in Apparatus for Measuring Coal and other Materials as it is Delivered into the Bunkers of Ships.
Year: 1892

page_text: Date of Application, 10th Mar., 1892
Complete Specification Left, 9th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Measuring Coal and other Materials
as it is Delivered into the Bunkers of Ships.
We, GEORGE MORISON HAMLYN, and ANDREW MACFARLANE, both of
59 Southwark Bridge Road, in the County of Surrey, Manufacturers, do hereby
declare the nature of this invention to be as follows :-
According to this invention a horizontal door is placed in the bunker hatchway
some distance below the combing. This door with the sides of the hatchway
forms a measure into which the coal is filled. When this receptacle is full the
door is allowed to open and the coal drops into the bunker.
The door is pivotted along one side and its opposite side is secured by a catch.
When this catch is withdrawn the door falls open and discharges the coal upon it,
it is then brought back to the horizontal position by a counterbalance weight fixed
at the end of a lever attached to it or the door may be retained and operated by
chains, or otherwise.
If the hatchway is too wide to be closed by a single door its width may be
diminished by means of an inclined partition or two doors pivoted to a central bar
may be employed.
In some cases a counter is connected or geared to the door to record the number
of times it has been opened.
Dated this 10th day of March 1892.
GEO. M. HAMLYN.
A. MACFARLANE.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Measuring Coal and other Materials
as it is Delivered into the Bunkers of Ships.
We, GEORGE MORISON HAMLYN, and ANDREW MACFARLANE, both of
59 Southwark Bridge Road, in the County of Surrey, Manufacturers, do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:—
According to this invention a horizontal door is placed in the bunker hatchway
some distance below the combing. This door with the sides of the hatchway forms
a measure into which the coal is filled. When this receptacle is full the door is
allowed to open and the coal drops into the bunker.
The door is pivotted along one side and its opposite side is secured by a catch.
When this catch is withdrawn the door falls open and discharges the coal
upon it, it is then brought back to the horizontal position by a counterbalance
weight fixed at the end of a lever attached to it or the door may be retained and
operated by chains, or otherwise.
If the hatchway is too wide to be closed by a single door its width may be
diminished by means of an inclined partition or two doors pivoted to a central
bar may be employed.
-In-some cases a counter is connected or geared to the door to record the number
afitimes it has been onened.

page_text: '
DESCRIPTION OF THE DRAWINGS.
Figure 1 Sheet 1 is a sectional elevation of our improved apparatus attached to
a bunker hatchway, and fitted with two doors.
Figure 2' is a part sectional end elevation of same.
Figure 3 is a plan of same.
Figure 4 is a part sectional elevation of a similar apparatus but with the shaft
placed outside the bunker.
Figure 5 is a part end elevation of same.
Figure 6 is a detail of the slotted wheel hereinafter more fully described.
Figure 7 Sheet 2 is a sectional elevation of our improved apparatus attached to
a bunker hatchway, but fitted with one door only.
Figure 8 is a part sectional end elevation of same.
Figure 9 is a plan of same.
Figure 10 is a detail shewing an alternative method of retaining the shaft in
place, by means of a ratchet wheel and pawl, instead of by the slotted wheel,
hereinafter more fully described.
Figure 11 is a plan of same.
In Figures 1, 2, 3, 4, 5, 7, 8 and 9 A is the bunker hatchway. B, B are the doors
placed about midway down the hatchway below the combing. These doors, with
the sides of the hatchway form a measure into which the coal is filled.. When this 2
receptacle is full the door is allowed to open, and the coal drops into the bunker.
The doors B, B are attached to the hatchway on one side by means of hinges C, C,
and are supported on opposite sides by means of ropes or chains D, D. These ropes
or chains D, D being themselves attached to the drums E, E. Running through the
hatchways A, and near the top is a shaft F carried in suitable bearings G, G, 2
and upon this shaft are fitted the aforementioned drums E, E. To the end of this
shaft F is keyed a wheel H, with handle H', and upon its rim a slot H2 more
particularly shewn in Figure 6. Upon the side of the hatchway and near the
wheel H, is bolted or otherwise fixed a bracket J into which pivotted a short
hand lever J. This hand lever J is arranged to fit into the slot H' of the 3
wheel H. The method of working is as follows:-When the wheel H is rotated
it revolves the shaft F, and with it the drums E, E and these by means of the ropes
or chains D, D bring the doors B, B, up into the horizontal position, and ready for
coal or other material to be filled in. The wheel H with its shaft F, and
drums E, E are retained in position by engaging the hand lever J' with the slot H 3
of the wheel H. When the hatchway is full of coal, or other material, the hand
lever J, can then be withdrawn from the slot H in wheel E, and the weight of the
coal upon the doors B, B causes them to open, and allows the material to fall into
the bunker. Figures 4 and 5 of Sheet 1 shew an alternative method of putting
the shaft F on the outside of the bunker instead of through it as in Figures 1, 2 4
and 3, and it is carried in bearings G, G which are also placed outside the hatchway,
the bracket J with hand lever J¹ being also placed in a suitable position for
engaging with the slot H2 in the wheel H. The effect of working is the same
as shewn in Figures 1, 2, and 3, but more convenient when it is not desired to put
the shaft through the hatchway. Figures 7, 8 and 9 are all in respects, in regard 4
to their working and construction the same as 1, 2 and 3 but are fitted with one
door B, instead of two as in Figures 1, 2 and 3. Figures 10 and 11 shew an
alternative method to the slotted wheel and hand lever already described, for
retaining the shaft and thereby the doors B, B when the hatchway is being filled.
In this arrangement the wheel H is replaced on the shaft F by a ratchet wheel K, 5
and into which engages a pawl L. The pawl L being attached to a short shaft or
spindle M running in a suitable bearing N and having also attached to it on the
side of the bearing opposite the pawl, a hand lever O. The effect of working is
that the pawl L engages with the ratchet wheel K, and thus prevents the shaft F

page_text: from rotating. When the hatchway is full of coal or other material the doors B
are released by lifting the hand lever O which disengages the pawl L and allows
the shaft F with its drums E, E to unwind. Instead of using chains, or ropes to
retain the doors B, B in position while filling the bunker, or to bring them into
position for filling, we may adopt the arrangement as shewn on Sheet 3, where
Figure 12 is a part sectional elevation, Figure 13 a part sectional end elevation and
Figure 14 a plan of same. In Figure 12 A is the hatchway, B, B the doors already
described. The doors B, B in this arrangement are pivotted along one side at B', B'
and their opposite sides secured by catches P, P which are pivotted at P, P. These
catches pass through a small hole in the side of the hatchway as shewn at Q,
and form a projection upon which the doors B, B rest. The catches P, P are kept
in position by the spring Q on the pin Q². Upon withdrawing the catches P, P
the doors B, B then fall open and discharge the coal upon them into the bunker.
They are then brought back into the horizontal position by means of counter-
balances R, R attached to the levers S, S. These levers are fitted to the pivotted
hinges B', B' of the doors B, B. The hinges themselves being carried in suitable
bearings GG bolted to the hatchway. In order to prevent any coal or other
material from falling between the doors B, B we place a shield or angle piece S¹
across the hatchway.
In place of the catches P, P we may use another form of catch as shewn by
Figure 15. This consists of a suitable bracket T, bolted to the outside of the
hatchway, and through a slot in which is fitted a catch V which also passes through
the hatchway and forms a support for the door B to rest upon as in the catch P.
The catch V is withdrawn by the hand lever W and held in position by the
spring W
Instead of the lever S and counterbalance R, as shewn in Figures 12, 13, 14 we
may use the form of lever and counterbalance as shewn in Figure 16 where the
lever S is only single ended the handle being placed in the centre of the weight as
shewn at x.
Figure 17 Sheet 4 shews our improved apparatus with the hinged doors B, B
being supported and lifted by the ropes or chains of a pulley block Y attached to
the davits Z.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. The combination with a ships bunker hatch of a horizontal door some distance
below the combing and means for securing and releasing the same.
2. Apparatus for measuring coal and other materials as it is delivered into the
bunkers of ships substantially as described and shown in the drawings.
Dated this 9th day of December 1892.
CARPMAEL & Co.,
Agents for the Applicants.