IMPROVEMENTS IN AND CONNECTED WITH SHIPS' WINDLASSES
Year: 1871

page_text: LETTERS PATENT to Matthew Paul and Andrew Paul, both of
Dumbarton, in the County of Dumbarton, North Britain, Engineers,
for the Invention of "IMPROVEMENTS IN AND CONNECTED WITH SHIPS'
WINDLASSES."
Sealed the 29th August 1871, and dated the 4th March 1871.
PROVISIONAL SPECIFICATION left by the said Matthew Paul and
Andrew Paul at the Office of the Commissioners of Patents, with
their Petition, on the 4th March 1871.
We, MATTHEW PAUL and ANDREW PAUL, both of Dumbarton, in the
County of Dumbarton, North Britain, Engineers, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN AND CONNECTED WITH
SHIPS' WINDLASSES," to be as follows, that is to say:—
This Invention relates partly to an improved combination of mechanism
forming a steam windlass having various practical advantages, and which
is designed more especially for flush decked ships, being arranged so
that the steam-engine details, together with the framing and barrel, are
all upon one deck. The windlass framing, which may be of cast iron

page_text: or wrought iron, comprises two vertical side frames, with a sole plate
having one or two chain receivers formed in it, and a cross head which
acts as the top support of a vertical worm shaft gearing with and driving
a worm wheel on the middle of the windlass axle. The windlass axle is
mounted in bearings in the side frames, and has the chain pulleys
mounted on it with frictional clutch driving arrangements, such as
those described in the Specification of Letters Patent granted to Matthew
Paul, and dated 2nd May 1862 (No. 1301). Warping ends are also
fitted on the windlass axle outside of the side frames. The steam cylinders
are fixed horizontally to the side frames, in which also are the bearings
of the crank shaft, which is horizontal and parallel to the windlass axle.
The crank shaft has on it a pair of reversed bevil wheels with clutch
for putting either into gear to drive a bevil wheel on a short vertical
shaft underneath, and this last is geared by spur wheels to the worm
shaft.
In some cases a capstan head is fitted on the top of the worm
shaft to give the power of working the apparatus by hand, accelerating
gearing, such as is herein-after described, being by preference placed
inside the head to render the rate of motion thus imparted to the worm
shaft more convenient than it otherwise would be.
It is intended also in some cases to fit a quickly running vertical
warping head in front of the windlass, its vertical spindle being driven
by spur gearing from the short vertical shaft herein-before described as
driven by bevil wheels from the crank shaft.
The various parts are by means of engaging and disengaging clutches
arranged so that the windlass with its warping ends and the vertical
warping head can be worked conjointly or separately, either by hand or
steam power, and without the intervention of chains or bands between
them and the steam engines.
This Invention also comprises an improvement in certain parts of the
arrangement delineated and described in the earlier Specification herein-
before referred to. In that arrangement in order to connect the capstan
shaft to the worm shaft of the windlass in a suitable manner, as regards
the speeds, a large spur wheel was fitted on the former, and the shaft
was supported by a cross frame piece beneath the wheel, considerablo
space being thereby inconveniently occupied.
By the present improvement, however, an accelerated or greater
comparative speed is given to the capstan shaft, so that a much smaller

page_text: spur wheel answers the purpose, and it is supported by a cross frame
piece above the wheel and well out of the way. The accelerated speed
is obtained by having a ring of internal teeth in the capstan barrel
gearing with one or more intermediate pinious arranged on studs round
a pinion on the capstan shaft. The intermediate pinions aro carried by
a wheel or disc which by means of a key or clutch can be made stationary
or connected to the barrel, the former being done when the accelerated
motion is wanted, and the latter when it is wished to turn the shaft at
the same speed as the barrel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Matthew Paul and Andrew Paul in the Great
Scal Patent Office on the 2nd September 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MATTHEW
PAUL and ANDREW PAUL, both of Dumbarton, in the County of
Dumbarton, North Britain, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of March, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Matthew Paul and Andrew Paul, Her
special licence that we, the said Matthew Paul and Andrew Paul,
our executors, administrators, and assigns, or such others as we, the
said Matthew Paul and Andrew Paul, our executors, administrators,
and 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 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 "IMPROVEMENTS IN AND CONNECTED
WITH SHIPS' WINDLASSES," upon the condition (amongst others) that we,
the said Matthew Paul and Andrew Paul, our executors or adminis-
trators, by an instrument in writing under our, 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 Scal Patent Office within

page_text: six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that we, the said Matthew Paul and Andrew
Paul, do hereby declaro the nature of our said Invention, and in
what manner the same is to bo performed, to be particularly described
and ascertained in and by the following statement in writing, reference
being had to the accompanying Drawings, that is to say :-
Our said Invention relates partly to an improved combination of
mechanism forming a steam windlass having various practical advantages,
and which is designed more especially for flush decked ships, being
arranged so that the steam engine details together with the framing and
barrel are all on one deck.
Our present Invention also comprises an improvement in certain parts
of the arrangement delineated and described in the Specification of
Letters Patent granted to Matthew Paul and dated 2 May 1862, (No. :
1301).
And in order that our said Invention and the manner of performing
the same may be properly understood, we hereunto append two Sheets
of explanatory Drawings to be herein-after referred to and representing
steam windlasses as constructed with our improvements. In these
Drawings the same reference numerals are used to mark the same or like
parts wherever they are repeated.
Figure 1, on Sheet 1, of the Drawings is a plan partly in horizontal
section, Figure 2 is a sectional front elevation, and Figure 3 is a side
elevation of our improved steam windlass for flush decked ships. The 1
windlass framing, which may be of cast iron or wrought iron, comprises
two vertical side fraines 1, an after sole plato 2, having chain receivers 3
formed in it, a front sole plate 4 and a cross head 5, which last is in all
cases by preference of wrought iron, and which acts as the top support of
a vertical worm shaft 6, gearing with and driving a worm wheel 7 fast on :
the middle of the windlass axle 8. The windlass axle S is mounted
in bearings in the side frames 1, and has the chain pulleys 9 mounted on
it with frictional clutch driving arrangements such as those described
in the carlier Specification (1301 of 1862) herein-before referred to.
Warping ends 10 are also fixed on the windlass axlo 8 outside of the
side frames 1. The steam cylinders 11 are fixed horizontally to the side
frames' 1, in which are also the bearings of the crank shaft 12 which is

page_text: horizontal and parallel to the windlass axle 8. The crank shaft 12 has
on it a pair of reversed bevil toothed wheels 13 with a clutch 14 for
putting either wheel 13 into gear to drive a bevil toothed wheel 15 on
a short vertical shaft underneath, and this last is geared by a pinion
and spur wheel 16 to the worm shaft 6 as best seen where indicated by
dotted lines in Figure 3, the parts being contained in a recessed or suuk
part of the front sole plate 4. In some cases we fit a capstan head 17
as shown on the top of the worm shaft 6 to give the power of working
the windlass by hand, accelerating gearing such as is herein-after
described, being, by preference, placed inside the head 17 to render the
rate of motion thus imparted to the worm shaft 6 more convenient than
it otherwise would be, or in some cases where the motion obtained in
that way is not sufficiently accelerated we arrange the added capstan
head 17, as shown in Figure 4, which is an end clevation corresponding
to Figure 3. In this arrangement instead of putting the capstan head 17
directly upon the worm shaft 6, we place it on a short parallel vertical
shaft 18 geared by a spur wheel 19 and pinion to the worm shaft 6, and
carried by a bracket 20 formed on the cross head 5. We also intend in
some cases to fit a quickly running warping head 21 in front of the
windlass as shown by blue lines, its vertical spindle 22, being driven by
spur gearing 23 from the short vertical shaft herein-before described as
driven by bevil wheels from the crank shaft 12. The various parts are
by means of ordinary engaging and disengaging clutches arranged so
that the windlass with its warping ends 10 and the vertical warping
head 21 can be worked conjointly or separately in either direction, either
by hand or steam power, and without the intervention of chains or bands
between them and the steam engines.
Figure 5, on Sheet 2, is a sectional side elevation, and Figure 6 is a
back elevation showing the application of an improvement to the arrange-
ment of steam windlass herein-before referred to as described in an earlier
Specification (No. 1301 of 1862). In this arrangement as formerly
made, in order to connect the capstan shaft 18 to the worm shaft 6
of the windlass in a suitable manner, as regards the speeds, a large spur
wheel was fitted on the former and the shaft 18 was supported on a cross
frame piece beneath the wheel, considerable space being thereby incon-
veniently occupied. By our present improvement however an accelerated
or greater comparative speed is given to the capstan shaft 18 so that a
much smaller spur wheel 19 answers the purpose, and it is supported by

page_text: across frame piece 21 above the wheel 19 and well out of the way. Tho
accelerated speed is obtained in this example and also in the cases of the
capstan heads 17, shown on Sheet 1 of the Drawings, and herein-before
referred to, by having a ring of internal teeth 25 formed in the capstan
barrel or head 17 gearing with one or more intermediate pinions 26,
arranged on studs round a pinion 27 on the capstan shaft 18 or worm
shaft. 6. The intermediate pinions 26 are carried by a wheel or dise 28,
which by means of a key 29 or clutch can be made stationary, or be set
loose, or which by another key can be fixed to the barrel. When the
accelerated speed is wanted the disc or wheel 28 is made stationary,
being set loose when it is wished to disconnect the shaft 18 from the
barrel or capstan head 17, whilst, if the latter is keyed to the disc 28
it will turn the shaft at the same speed as is imparted to itself.
Having thus particularly described our said Invention and the manner
in which the same is to be performed, we have to state that we do not
restrict ourselves to the precise details herein described or delineated, but
that what we believe to be novel and original, and claim as the Invention
secured to us by the herein-before in part recited Letters Patent is,
the arranging or combining together of the parts of ships' windlasses in
the improved modes herein described and delineated.
In witness whereof, I, the said Andrew Paul, on behalf of the said
Matthew Paul and myself, have hereunto set my hand and
scal, this First day of September, in the year of our Lord One
thousand eight hundred and seventy-one.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
ANDREW PAUL. (L.S.)