баррат lasses, Hoists, and the like by Means of Electricity.
Year: 1888

page_text: ани баррат
lasses, Hoists, and the like by Means of Electricity.
I RICHARD RICHARDSON HUTCHINSON of 114 Edith Grove, Brompton, London,
S.W. Electrical and Mechanical Engineer do hereby declare the nature of this inven
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:--
The object of my Invention is to apply power to capstans, windlasses, hoists and the
like by means of a suitable electric motor, or motors with suitable gearing interposed
for reducing the initial speed thereof, the current of electricity employed for operating
said machinery being derived from a dynamo electric generator placed at any suitable
distance from the motor, and arranged to supply a current for one or more such motors
arranged in series or parallel circuit as may be desired, or I may make use of accumu-
lators or a primary battery as the source of electricity.
In order that my Invention may be the better understood, I have appended the
accompanying sheet of drawings in which Figure 1 represents a sectional view of a vertical
capstan, driven from underneath by an electric motor, and Figure 2 is a sectional
elevation of a similar capstan also driven from underneath, but by means of an inter-
nally geared annulus and pinion. Figure 3 is an elevation of a windlass or hoist,
driven by an electric motor fixed to the framing thereof, and Figure 4 is an end
elevation of the same.
I
may,
In applying the device or contrivance according to my Invention to a capstan, such
as is generally employed in railway goods yards and docks for the purpose of hauling,
in cases where said capstan is provided with a central shaft or spindle, a
Figure I supported by a bearing in the floor plate and also by a footsteps, operate
said capstan by means of a bevel or crown wheel B, keyed or otherwise attached to
said shaft or spindle a, into which gears a pinion C corresponding to said wheel B-
The pinion C is attached to the spindle D of a suitable electric motor E, and is rotated
by said spindle when the motor is actuated by the electric current-The ratio of the
wheels B and C may be varied to meet the requirements of different cases of applica-
tion, according to the ratio of the rate of speed of the electric motor and the desired
speed of the capstan.

page_text: .
When, however, the capstan barrel A. Figure 2 is mounted upon a rigid central
spindle or arbor a which is firmly secured to the floor plate or any other foundation,
I employ an internally geared wheel, or toothed annulus, either attached to, or formed
upon, the interior lower rim of the capstan barrel. A pinion, is arranged to gear
with the wheel or annulus B, said pinion C being keyed, or otherwise attached to the
spindle D of the electric motor E. I may, when it is desirable to further reduce the
speed of said capstan barrel A, interpose a countershaft, or countershafts, with suitable
intermediate gearing in connection therewith-for this purpose said shaft or shafts
being arranged either vertically or horizontally as may be desired.
When applying the device or contrivance according to my Invention to a windlass,
crab, or hoist, as shewn by Figures 3 and 4 where the barrels A A' and B are disposed
horizontally, may attach the electric motor to the base, or any part of the frame of
said windlass, crab, or hoist, in such a manner that a pinion, or pinions C, C₁ may
gear, or engage with a spur wheel or spur wheels F, F and so actuate the horizontal
barrels A A and B, at a lower rate of speed than that of the motor spindle D, and
proportionately increase the leverage-Where the rate of speed and power developed
requires to be varied, I may employ one or more additional shafts, with suitable
gearing for further reducing the speed, and increasing the leverage upon the work to
be done I may also make use of any system of clutch gear for disengaging the
motor spindle D, and allowing the weight or load upon the windlass, crab, or hoist, to
be lowered or released gradually by means of a brake, which may either be applied by
hand, or may be an electro magnetic brake in connection with the electrical circuit
supplying current to the motor E. In the case of employing an electrical brake,
prefer to adopt one of the types described in the Specification of my Patent, No. 14979
1888 and shown in the drawings accompanying the same.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is;
First. The combination of a vertical capstan with an electric motor and gearing for
actuating the same, substantially as herein described and shewn by Figures 1 and 2 of
the accompanying sheet of drawings.
Second. The construction of a windlass, crab, or hoist provided with a horizontal
barrel or barrels, with an electric motor for actuating the same, with simple or
compound gearing, and with or without an electrical or mechanical brake, substan-
tially as herein described and set forth.
Third. The combination of an electrical motor E with a vertical or horizontal
barrel or barrels or capstans A, A or B for the purpose of rotating same, and
with or without the electrical brake forming the subject of the specification of
my Patent No. 14979 1888 substantially as herein described and set forth.
Dated this 15th day of October 1888.
FREDK. WALKER & HYDE,
4, Little Moorfields, London, E.C.,
Agents for Applicant.