Improvements in Ships' Winches.
Year: 1899

page_text: Improvements in Ships' Winches.
We, JOHN CHARLES HOWELL of 24 Queen Victoria Street, in the City of
London, Electrical Engineer, and THOMAS HUMPAGE and HERBERT INNES JACQUES,
both of Luckwell Works, Ashton Gate, Bristol, Engineers, do hereby declare
the nature of this invention to be as follows:-
This invention relates to certain improvements in ships winches.
In carrying out our invention we employ an electric motor for operating the
winch which renders it necessary to use a reducing gear, as the revolutions of
the motor shaft would be too rapid to be directly applied. We therefore propose
where a high speed motor is used to employ a reduction gear preferably of the
kind described in the Specification to Letters Patent No. 20,542 of 1892. Accord-
ing to our invention we enclose the gear in question in a casing adapted to hold
oil and form such gear casing as the drum or winding barrel, one end of same
forming a part of what is known as the fulcrum wheel of said gear which is
provided with a hollow extended boss surrounding a like extended boss of the
smaller driven wheel of the gear which is in turn secured to the slow running
shaft on which is the bollard or hauling head. Such bollard has preferably also
a short sleeve or boss on said shaft. The other end of the drum is preferably
carried so as to turn freely on a suitable bearing, while the shaft of the motor
enters the case or drum and carries the first or driving wheel of the gear.
Suitable clutches are applied to the extended boss of the fulcrum wheel (which
forms part of the drum) and to the boss of the bollard or its shaft and these
are operated so as to be opened or closed alternately as by spindles carrying
gear wheels which intermesh so that the movement of one will produce an
opposite movement in the other. One of these spindles is provided with a
handle.
When the hauling bollard is to be used the handle is is operated so that the
clutch grips the boss of the fulcrum wheel, the motion at the same time opening
the other clutch and freeing the slow running shaft to which the bollard is
attached.
When it is required to use the winding drum the handle is operated to cause
the boss of the bollard or the shaft to be gripped and the fulcrum wheel boss
freed so that the drum will be free to do the lifting required. The handle
controls the load by using the clutch as a brake for lowering it.
The motor is preferably arranged in the centre when the above parts are
duplicated.
In cases where it is not desired to use both drums or bollards the boss of the
starting handle can be milled in such a form as to prevent both spindles being
used.
71
2000
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Chartered Patent Agent,
For the Applicants.

page_text: Improvements in Ships' Winches.
We, JOHN CHARLES HOWELL of 24, Queen Victoria Street, in the City of
London, Electrical Engineer, and THOMAS HUMPAGE and HERBERT INNES JACQUES,
both of Luckwell Works, Ashton Gale, Bristol, Engineers, 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: -
This invention relates to improvements in ships winches or like winding gear
operated by electric motors.
Owing to the high speed developed by such motors it is necessary to use a
reducing gear as the revolutions of the motor shaft would be too rapid to be
directly applied.
According to this invention we employ a reducing gear capable of reducing
from a high speed to a low one and also capable of providing a second or different
speed which arrangement we utilize to combine in a winch both a capstan head
and a winding drum and we provide means by which one or the other can be
put into action as desired.
In the accompanying drawing is illustrated one form of this invention
applicable to a ship's winch.
Fig. 1 is an elevation of a ship's winch having two capstan heads and two
drums.
Fig. 2 is a sectional elevation on an enlarged scale of one of the drums and
its gear and capstan head.
Fig. 3 is an elevation on the same scale as Fig. 2 of the capstan end of the
apparatus, and
Fig. 4 is a section on line a of Fig. 3.
In these drawings, 1 is the electric motor, 2, 2 the winding drums, and 3, 3
the capstan heads, the motor being centrally situated between the two.
It will be understood that the arrangement on each side of the motor is
identical so that a single description will suffice.
The reduction gear is of the class described in the Specification to Letters
Patent No. 20,542 of 1892. The reducing gear is enclosed in the winding drum 2
which is formed as a closed casing suitable for holding oil. Into this drun
projects the high speed shaft 4 of the motor said shaft having secured therein the
spindle 5 of the first bevel gear wheel G of said gear the thrust backwardly on
same being taken by a washer 7. This wheel gears with a wheel 8 loose on a
stud 9 carried at an angle by a loose spindle 10 supported in the wheel 6 at one
end and in the tubular shaft 11 of the capstan head 3 at the other. The wheel 8
is also provided with a second wheel or set of bevel teeth 12. The first wheel S
gears with a set of bevel teeth 13 on a plate 14 secured to and forming one end
of the drum 2 the other end of which runs freely on a sleeve 2" on shaft 4 and
the second wheel or teeth 12 gears with a wheel 15 secured to or forming part of
the shaft 11. It will be seen that the wheels 8 and 12 and the carrying stud 9 for
same are duplicated and this is done for the purpose of better balancing the gear
but one set of same is sufficient to effect the reduction. The plate 14 has a
sleeve 16 connected to it and fitting over but free on the tubular shaft 11 and the
capstan head 3 has a sleeve 17 also fitting over but secured on the shaft 11.
The shaft and sleeves 16 and 17 are carried in a suitable bearing 18 which is
provided with two lugs 19 (one of which only is shewn in Fig. 4) in which are
hung on pins 20, 21 the eyes of split clamping rings 22, 23. The two split ends
of these rings carry lugs 24, 25 having screwed openings and lugs 26, 27 having
plain openings respectively as shewn in Fig. 3 and through each upper and lower

page_text: Jug forming a pair, passes a screwed spindle 28, 29, respectively, such spindles
carrying the gear wheels 30, 31 respectively which engage with each other and
one of which carries an operating handle 32.
In the reducing gear illustrated the wheel 13 acts as a fulcrum wheel and when
held fast will allow the wheel 12 to transmit motion in a very much reduced
form to the wheel 15 but when on the contrary the wheel 15 is held so as to
become the fulcrum wheel the wheel 8 will rotate the wheel or teeth 13 and cause
plate 14 and winding drum 2 to revolve. The necessary holding of the parts is
effected by the clamping rings described. For instance when the capstan head 3
is to be driven the handle 32 is moved to tighten the clamp 22 on the sleeve 16
so that plate 14 and wheel 13 are securely held, the engagement of the wheel 30
with the wheel 31 causing the latter to have a reverse movement and so to loosen
the clamp 23 and enable the shaft 11 carrying the sleeve 17 of the capstan head
to revolve freely. When the drum 2 is to revolve an opposite movement is given
to handle 32 thus tightening clamp 23 on sleeve 17 and holding the capstan
head 3 shaft 11 and wheel 15 and loosening clamp 22 thus releasing the sleeve 16,
plate 14 and wheel of teeth 13 and enabling the drum 2 to revolve so that it is
free to do the lifting required. The handle 32 controls the load by using the
clutch as a brake for lowering it.
In cases where it is not desired to use both drum and bollard one or other of
the wheels 30 or 31 may be arranged to be put out of gear.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that
what we claim is:-
1. In a winding gear, a drum, a gearing train enclosed in same, one of the
wheels of such train being connected to such drum, a capstan head, driven
through another wheel of such train and clutches adapted for holding the drum
or the capstan head so that one or other only may be rotated substantially as
described.
2. In a winding gear, and in combination, a drum having a gearing train
inside same, one of the wheels of such train forming a part of the drum end, a
sleeve connected to such end, a shaft connecting a capstan head with another
wheel of such train, means for holding and releasing such shaft and head, and
means for holding and releasing the sleeve of the drum, all substantially as and
for the purpose described.
3. In a winding gear, a pair of winding drums, a motor situated between same,
gearing train in each drum, means connecting the trains with the motor, a
apstan head, connected to each train, means whereby a wheel of each train may
be held to allow the capstan heads only to be rotated, and means whereby another
wheel of each train may be held to allow the drums only to be rotated," substan-
ially as and for the purpose described.
4. The arrangement of two speed gearing, drum, capstan head and holding
nd releasing parts substantially as described and illustrated.
Dated this 21st day of March 1900.
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Chartered Patent Agent,
For the Applicants.