A STEAM WINDLASS AND BOILER FOR THE SAME, TOGETHER WITH CERTAIN MODIFICATIONS ENABLE TO BE WORKED
Year: 1857

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, E. C., Patent Agent, for the Invention of "A STEAM
WINDLASS AND BOILER FOR THE SAME, TOGETHER WITH CERTAIN MODIFICATIONS
PROVISIONAL SPECIFICATION left by the said Richard Archibald Brooman
at the Office of the Commissioners of Patents, with his Petition, on the
2nd April 1857.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, E. C., Patent Agent, do hereby declare the nature of the said Invention
for "A STEAM WINDLASS AND BOILER FOR THE SAME, TOGETHER WITH CERTAIN
MODIFICATIONS TO ENABLE THE WINDLASS TO BE WORKED BY HAND," communicated
to me by a foreigner residing abroad, to be as follows:-
This windlass consists of a pair of steam cylinders, placed on opposite sides
of suitable framework, within which the drum or windlass proper is mounted,
and free to turn in suitable bearings. Two smaller drums extend beyond the
framework, one on each side. On one of the ends of the main drum a toothed
wheel is keyed or affixed, and this is geared into by a pinion upon the crank
shaft, to which rotary motion is communicated from the piston rods through

page_text: connecting rods. There is a contrivance for throwing the toothed wheel out
of gear with the toothed pinion on the crank shaft, and for bringing into gear
with it a pinion on another shaft, fitted with crank handles to be worked by
hand. A break in the form of a metal band is passed round a smooth flanged
wheel, keyed or affixed to the main drum; the two ends of this band are
united to a pedal, to enable the break to be put into action by the foot. A
lever handle is made to work a slide in a steam box, and by means of this
slide, and suitable pipes, ports, and passages leading to the two cylinders, the
steam is wholly or partially shut off, let on, or reversed at will. Although I
have referred to two steam cylinders, I do not confine myself to this number,
though in practice it will be found most convenient.
The boiler to be employed with this windlass consists of an outer vertical
case, with vertical tubes for the passage of the products of combustion, hot
air, and gases from the furnace to the chimney, and its chief peculiarity
consists in bolting the case in such manner at top and bottom that it can be
readily removed in order to cleanse the outside of the tubes and remove from
them any incrustation which may have adhered thereto. The boiler is fed by
a pump worked by the steam cylinders. For extensive building operations
the windlass and boiler are fixed upon a bed provided with wheels. If to be
used on railways, then the boiler should be horizontal. Among other purposes
the whole machine will be found of great service in loading and unloading
cargoes into and from ships.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent
Office on the 2nd October 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, E. C.,
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of April, in the year of our Lord One
thousand eight hundred and fifty-seven, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Richard Archibald Brooman, Her special licence that I, the said
Richard Archibald Brooman, my executors, administrators, and assigns, or
such others as I, the said Richard Archibald Brooman, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from time to

page_text: time and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "A STEAM WINDLASS AND BOILER FOR THE SAME, TOGETHER WITH CERTAIN
MODIFICATIONS TO ENABLE THE WINDLASS TO BE WORKED BY HAND," (com-
municated to me by a foreigner residing abroad,) upon the condition (amongst
others) that I, the said Richard Archibald Brooman, 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 was 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 Richard Archibald Brooman, 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 thereof, reference being had to the Drawings hereunto
annexed (that is to say):-
This windlass consists of a pair of steam cylinders, placed on opposite sides
of suitable framework, within which the drum or windlass proper is mounted,
and free to turn in suitable bearings. Two smaller drums extend beyond the
framework, one on each side. On one of the ends of the main drum a toothed
wheel is keyed or affixed, and this is geared into by a pinion upon the crank
shaft, to which rotary motion is communicated from the piston rods through
connecting rods. There is a contrivance for throwing the toothed wheel out
of gear
with the toothed pinion on the crank shaft, and for bringing into gear
with it a pinion on another shaft, fitted with crank handles to be worked by
hand. A break in the form of a metal band is passed round a smooth flanged
wheel, keyed or affixed to the main drum; the two ends of this band are united
to a pedal, to enable the break to be put into action by the foot. A lever handle
is made to work a slide in a steam box, and by means of this slide, and suitable
pipes, ports, and passages leading to the two cylinders, the steam is wholly or
partially shut off, let on, or reversed at will. Although I have referred to
two steam cylinders, I do not confine myself to this number, though in practice
it will be found most convenient. The boiler to be employed with this wind-
lass consists of an outer vertical case, with vertical tubes for the passage of the
products of combustion, hot air, and gases from the furnace to the chimney,
and its chief peculiarity consists in bolting the case in such manner at top
and bottom that it can be readily removed in order to cleanse the outside of
the tubes and remove from them any incrustation which may have adhered

page_text: thereto. The boiler is fed by a pump worked by the steam cylinders. For
extensive building operations the windlass and boiler are fixed upon a bed
provided with wheels. If to be used on railways, then the boiler should be
horizontal. Among other purposes the whole machine will be found of great
service in loading and unloading cargoes into and from ships.
The Drawings hereunto annexed represent the manner in which this Inven-
tion may be conveniently carried into effect.
Figure 1 is a side elevation of the improved windlass; Figure 2 is a partial
transverse elevation, showing rather more than one half of the machine;
Figure 3 is a plan of the windlass; Figure 4, a section of the steam stop
valves, taken through the line A, B, of Figure 5, which is a section of the
same through the line C, D, of Figure 4; and Figure 6 is a horizontal section
of one of the steam cylinders taken through the line M, N, Figure 1;
Figure 7 is a vertical section (in line only) of the improved boiler; Figure 8
is a horizontal section of the boiler (in line only) taken through the line V, Z,
of Figure 7; Figure 9 is a similar section through the line X, Y, of Figure 7;
Figure 10 is a section of the portion of the boiler situated at its upper exterior
angle; and Figure 11 is a section of the portion situated at the junction of
the upper with the lower part of the boiler. X, X, (Figures 1, 2 and 3,) is
the frame of the windlass, resting upon the foundation X', X'; Y is the drum
or barrell of the windlass, on the axle of which are fixed two smaller surging
drums Y, Y, one at each end. On the same axle is fixed the toothed wheel
Z, which receives motion either from the pinion Z', which is carried by an
axle, the ends of which receive handles to be worked manually, or from the
pinion Z", which is carried by a shaft, to which motion is communicated by
cranks, driven by connecting rods from the piston rods of the steam cylinders.
The wheel Z has a groove Z a formed around it, which groove receives a break
band, the ends of which are attached to and may be brought nearer together
by two short levers t, t, attached to a weigh shaft moved by a lever T worked
by a pedal T. By means of this arrangement the break may be made to
regulate or stop the motion of the windlass with facility. The axle of the
pinion Zslides horizontally in bearings in the frame X, and may be retained
in or out of gear with the wheel Z by means of a stop or pawl s. The Z" is
fixed on the engine or crank shaft, and is thrown into or out of gear by means
of the clutch r worked by the lever. The stop or pawls and the lever 21
are supported on cross bars 0, 0', supported by the frame X. The steam
cylinders a, a, from which the motion of the windlass is ordinarily derived, are
fitted with valves, as usual. The piston rods b, b, are each furnished at their
upper extremities with a slide block 6', which slides in guides in or fixed to

page_text: the frame. Each slide block 6' has the lower extremity of the corresponding
connecting rod d centred on it by a pin d'; the other extremity of the con-
necting rod d is centred by the pin c¹ to the crank c, which consists of a
metallic disc. m is a distributing steam chest or box, which receives steam
from the boiler through the pipe m'. The slide valve n is worked by a rod n¹,
moved by a lever n", which is furnished with a handle, and is centered on the
cross bar o. The lower part of the box m has three ports K, L, P. The
ports K and L are closed by the valve n when the machine is at rest, the lever
n" then occupies the position 1; but when it is moved into the position 2 the
valve n moves and opens the port K, and the steam then enters and passes by
the outlets K', K¹, the pipes K", K", and thence into the valve boxes of the
steam cylinders, where it acts as usual. By the motion of the valve n
the port L has also been opened to the escape P, and thus the engine is
worked by steam admitted through the pipes K", K", and exhausted through
the pipes L", L", the port L, and the escape port P. If the lever n¹¹ is placed
in the position 3 the valve n will move off the port L, and the steam contained
in the distributing chest m will pass through the port L, the outlets L', L',
and the pipes L", L", to the cylinders, and the action of the machine will
thus be reversed, the exhaust taking place through the pipes K", K". The
steam escaping through P passes through a tube p to the chimney of the
boiler to accelerate the draught. The valves of the steam cylinders are
worked by the levers e, e, which receive their motion from the crank shaft by
means of the eccentrics e¹, e¹.
The boiler (Figures 7 to 11) is formed with vertical tubes and an interior
furnace, the flame and gases passing through the tubes. The construction of
it is such as to afford great facility for removing the outer casing, and thus
obtaining access to the tubes for clearing deposits from them. In Figure 10,
which shows the method by which the top and sides of the boiler case are
connected, q¹ is a band of caoutchouc, compressed by the screws q" in grooves,
and used to intercept any steam that might tend to escape. In Figure 11
qis a similar band of caoutchouc, also used for making the boiler tight, and
q are screws for producing the required compression. When the outer case
has to be removed it is only necessary to remove the screws q", 9". The
boiler is fed by a small feed pump, worked from a moving part of the
windlass.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim,-
First, the construction of a steam windlass as herein-before described.
Secondly, the construction of a boiler as herein-before described.

page_text: Thirdly, the general arrangement and combination of apparatus as herein-
before described, and represented in the Drawings hereunto annexed.
In witness whereof, I, the said Richard Archibald Brooman, have here-
unto set my hand and seal, this Second day of October, in the year
of our Lord One thousand eight hundred and fifty-seven.
R. A. BROOMAN. (L.S.)