Improvements in the Means for Driving Winches and other Winding Machinery by Electrical Motors.
Year: 1890

page_text: Date of Application, 25th Aug., 1890
Complete Specification Left, 25th May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Means for Driving Winches and other Winding
Machinery by Electrical Motors.
I, ALEXANDER SIEMENS of 12 Queen Anne's Gate, Westminster in the County
of Middlesex, Civil Engineer do hereby declare the nature of this invention to be
as follows:-
This invention has more particularly for its object the construction of a ships
winch in combination with an electrical motor.
For this purpose I arrange the
motor either with its armature shaft in a vertical or inclined position below the
deck on which the winch is fixed, or I arrange the same on the same level with
the winch with the armature shaft horizontal in which case I enclose it in a
suitable watertight casing, through a stuffing box on which the armature shaft
projects.
This shaft is connected either directly or through an intermediate shaft and
coupling allowing a certain amount of longitudinal and lateral play, with the first
motion shaft of the winch by suitable bevil or spur toothed gearing.
The windings of the field magnets and of the armature are connected to the main
circuit through switches and resistances by means of which the speed, power and
direction of rotation of the motor can be controlled in the well known way.
The several switches for the above purpose are by preference arranged with
handlevers on a standard in a similar manner to the ordinary ship's telegraphs, one
handlever being provided for reversing and for putting in and taking out of
resistances, and another for making or breaking the field magnet circuit, the two
handlevers being interlocked if required. Or the several switches may also be
worked by a single handlever, the motion of which in one direction is made to close
the field magnet circuit whilst the motion in the other direction effects the reversal
of the motion and the putting in or out of resistances.
Dated this 25th don of At 1000
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Means for Driving Winches and other Winding
Machinery by Electrical Motors.
I, ALEXANDER SIEMENS of 12 Queen Anne's Gate, Westminster in the County
of Middlesex, Civil Engineer 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 has more particularly for its object the construction of a ship's
winch in combination with an electrical motor.
For this purpose I arrange the
motor either with its armature shaft in a vertical or inclined position below the
deck on which the winch is fixed, or I arrange the same on the same level with
the winch with the armature shaft horizontal in which case I enclose it in a suitable
watertight casing, through a stuffing box on which the armature shaft projects.
This shaft is connected either directly or through an intermediate shaft and
coupling allowing a certain amount of longitudinal and lateral play, with the first
motion shaft of the winch by suitable bevil or spur toothed gearing.
The windings of the field magnets and of the armature are connected to the main
circuit through switches and resistances by means of which the speed, power
and direction of rotation of the motor can be controlled in the well known way.

page_text: The several switches for the above purpose are by preference arranged with hand
levers on a standard in a similar manner to the ordinary ship's telegraphs, one hand-
lever being provided for reversing and for putting in and taking out of resistances
and another for making or breaking the field magnet circuit, the two handlevers
being interlocked if required. Or the several switches may also be worked by a
single handlever, the motion of which in one direction is made to close the field
magnet circuit whilst the motion in the other direction effects the reversal of the
motion and the putting in or out of resistances.
Fig. 1 of the accompanying drawings is an elevation and Fig. 2 is a plan of a
ship's winch according to my invention. The elertro motor A is enclosed in a
casing, its shaft is connected to the shaft of the winch barrel B through an inter-
mediate shaft C and suitable speed reducing gear. D is a switch box containing
resistances and contacts with a contact arm which can be moved by a hand lever E
so as to vary the power of the motor or to reverse or stop it. On the intermediate
shaft C is a clutch F which can be moved by a hand lever G so as to throw the
winch barrel into or out of gear with the motor. On the barrel is a brake wheel
with strap H which can be worked by the treadle K. On the shaft of the barrel B
and also on the intermediate shaft Care capstan heads L. The ends of the shaft C
are also made to receive winch handles so that the winch can, when required, be
worked by hand.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I claim :-
In combination with a winch, an electromotor geared thereto and provided with
a suitable switch whereby its power can be varied and its motion reversed or
stopped, substantially as described with reference to the accompanying drawings.
Dated this 25th day of May 1891.
ABEL & IMRAY,
Agents for the Applicant.