Year: 1887

page_text: Date of Application, 17th Mar., 1887
Complete Left, 16th Dec., 1887
Complete Accepted, 3rd Feb., 1888
We, MATTHEW HENRY PHINEAS RIALL SANKEY of Bawnmore, Bannister's Park,
Southampton, in the County of Hants Captain in H.M. Corps of Royal Engineers,
and PETER WILLIAM WILLANS of Ferry Works, Thames Ditton, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
On the overhanging end of the engine crank shaft, we mount the armature of the
dynamo in any suitable way.
The commutator. is not, as is usual, cylindrical, but its bars radiate from the shaft
outwards and it is placed on the end of the armature nearest the engine.
Against this radial commutator the brushes or collectors press and they may be
arranged so that the line of contact crosses at a slight angle the radial divisions of
the commutator and overlaps two divisions with a very narrow bearing surface of the
brushes.
The brushes and brush holders are carried on the end bearing of the engine by a
circular clip and two pins attached thereto.
The field magnets may be supported by girders or brackets, of gun metal or other
non-magnetic material, which extend from the base of the engine, past the brush
holders to the field magnets, so that the brushes and commutator are protected, and
the armature can be readily removed for examination. The field magnets may be
below or above the base of the engine, and may be either single or double horse-shoe
magnets and any or all of the limbs may be wound in any ordinary way.
1711
CARPMAEL & Co.,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Combined Engines and Dynamos.
We, MATTHEW HENRY PHINEAS RIALL SANKEY of Bawnmore, Bannisters Park,
Southampton, in the County of Hants Captain in H.M. Corps of Royal Engineers,
and PETER WILLIAM WILLANS of Ferry Works, Thames Ditton, in the County of
Middlesex, 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 :-
On the overhanging end of the engine crank shaft, we mount the armature of the
dynamo in any suitable way.
The commutator is not, as is usual, cylindrical, but its bars radiate from the shaft
outwards and it is placed on the end of the armature.
Against this radial commutator the brushes or collectors press-and they may be
arranged so that the line of contact crosses at a slight angle the radial divisions of the
commutator and overlaps two divisions with a very narrow bearing surface of the
brushes.
The field magnets may be supported by girders or brackets, of gun metal or other
non-magnetic material, which extend from the base of the engine. The field magnets
may be below or above the base of the engine, and may be either single or double
horse-shoe magnets and any or all of the limbs may be wound in any ordinary
way.
The drawings annexed shew examples of combined engines and dynamos con-
structed as above described.
Figures 1, 2 and 3 shew a side elevation, plan and cross section of one example.
Figures 4, 5 and 6 shew similar views of a second example and
Figures 7, 8 and 9 shew similar views of a third example.
In Figures 1, 2 and 3, A is the armature of the dynamo carried on the overhanging
end of the crank shaft B of the steam engine C. The engine is a vertical cylinder
engine preferably constructed as described in the Specifications of prior Patents
granted to one of us viz. :-Peter William Willans.
The bed of the engine is as shewn formed with straight sides to which are secured
two gun metal girders D D which extend beyond the base and to which are secured
the pole pieces E of the field magnets. The pole pieces as shewn in the drawing are
carried downwards below the girders D and are wound with insulated conductor in
any ordinary way. Or as above stated they might be extended upwards above the
girders or both upwards and downwards. F is the commutator formed with radial
The brushes may
bars and G a brush pressing against the face of the commutator.
be carried on the end bearing of the engine by a circular clip and two pins attached
thereto or may be carried in other suitable way.
In the modification shewn at Figures 4, 5 and 6 the girders D which are secured
to the sides of the bed plate are of cast iron with wide distance pieces of gun meta
interposed between them and the magnet pole pieces.

page_text: In other respects the construction is the same as shewn at Figures 1, 2 and 3 and
the parts are lettered with the same letters of reference.
In the modification shewn at Figures 7, 8 and 9 the commutator is carried by the
outer end of the shaft and the brushes supported by a suitable supporting frame
which may be attached to the girders D or not as desired.
The girders D are also shewn to be cast in one piece with the bed of the engine
instead of being bolted to it.
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. The construction of combined engines and dynamos with the dynamo armature
and commutator with radial bars carried on the overhanging end of the engine shaft
and with the field magnets carried in the way shewn by girders or brackets projecting
from the bed of the engine.
2. The construction of combined engines and dynamos substantially as heroin
before described and illustrated in the drawings annexed.
Dated this 15th day of December 1887
CARPMAEL & Co.,
Agents for the Applicants.