Improvements in Bogies for Railway Rolling Stock.
Year: 1894

page_text: Date of Application, 10th May, 1894
Complete Specification Left, 11th Feb., 1895-Accepted, 23rd Mar.. 1395
PROVISIONAL SPECIFICATION.
Improvements in Bogies for Railway Rolling Stock.
We, JAMES HENRY GREATHEAD, of 15 Victoria Street, Westminster, in the
County of Middlesex, Civil Engineer, and BASIL MOTT, of 20 Union Road,
Clapham Road, in the County of Surrey, Civil Engineer, do hereby declare the
nature of this invention to be as follows:-
Our improvements relate to bogies in connection with rolling stock on railways,
and chiefly consist in reducing the number of bogies for each carriage and
consequently throughout the train.
It is customary at present for two complete bogies to be provided to each
carriage, each bogie consisting of four wheels.
With our invention we arrange that one bogie supports the adjacent ends of two
carriages, the one pair of wheels being under the end of one carriage and the other.
pair being under the end of the next adjacent carriage. The same takes place
throughout the carriages composing the train.
The advantage which we gain by this is, in the case of block trains, especially
where the entrances are at their ends on a platform between the carriages, that
the weight of the train is considerably reduced and the distance over all throughout
the train is also considerably lessened; as a result the seating capacity of
passengers per ton is increased, moreover, the wheels throughout the train are
reduced.
We are aware that attempts have been made to effect this result before, but the
main difference between our invention and previous efforts is, that whereas in those
previous efforts the pivots on which the carriage ends are supported and turn were
placed over or between the axles of the bogie, in our invention the said pivots are
fixed outside the axles of the wheels. By this arrangement we get an increased
distance between the carriage ends allowing room for a vestibule or platform for
the convenience of loading and discharging passengers without increasing the
length of the wheel base of the bogie. We also allow more room for a radial
movement of the carriage, enabling sharper curves to be traversed.
Our invention is of course applicable to any construction of bogie and any
arrangement of springs in connection therewith, the invention consisting of an
intermediate bogie supporting the ends of the coaches as described.
Dated this Tenth day of May 1894.
JOHN P. O'DONNELL,
70 & 71, Palace Chambers, Westminster, S. W.,
Agent for the said Applicants.
COMPLETE SPECIFICATION.
Improvements in Bogies for Railway Rolling Stock.
We, JAMES HENRY GREATHEAD, of 15, Victoria Street, Westminster, in the
County of Middlesex, Civil Engineer, and BASIL MOTT, of 20, Union Road,
Clapham Road, in the County of Surrey, 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:-
Our improvements relate to bogies in connection with rolling stock on railways,

page_text: and chiefly consist in reducing the number of bogies for each carriage and
consequently throughout the train.
'
It is customary at present for two complete bogies to be provided to each
carriage, each bogie consisting of four wheels.
With our invention we arrange that one bogie supports the adjacent ends of two
carriages, the one pair of wheels being under the end of one carriage and the other
pair being under the end of the next adjacent carriage. The same takes place
throughout the carriages composing the train.
The advantage which we gain by this is, in the case of block trains, especially
where the entrances are at their ends on a platform between the carriages, that the
weight of the train is considerably reduced and the distance over all throughout
the train is also considerably lessened; as a result the seating capacity of
passengers per ton is increased, moreover, the wheels throughout the train are
reduced.
We believe that attempts have been made to effect this result before, but the
main difference between our invention and previous efforts is, that whereas in those
previous efforts the pivots on which the carriage ends are supported and turn were
placed over or between the axles of the bogie, in our invention the said pivots are
fixed outside the axles of the wheels. By this arrangement we get an increased
distance between the carriage ends allowing room for a vestibule or platform for
the convenience of loading and discharging passengers without increasing the
length of the wheel base of the bogie. We also allow more room for a radial
movement of the carriage, enabling sharper curves to be traversed.
Our invention is of course applicable to any construction of bogie and any.
arrangement of springs in connection therewith, the invention consisting of an
intermediate bogie supporting the ends of the coaches as described.
In order that our invention may be better understood and more readily. carried
into effect we will proceed to describe the drawing hereunto annexed.
Figure 1 is an elevation of our invention partly in section.
Figure 2 is a plan of Figure 1.
It will be seen from Figure 1 that the two adjacent ends of the carriages are
over and supported by one bogie. and that the pivots or centres are outside the
wheels. A, Bare the adjacent ends of the two coaches, C is the platform between
them; D, E are the pivots or centres of the bogie.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the sanie is to be performed, we declare that what we
claim is :-
1. An improved form of bogie with the pivots or centres outside the wheels,
substantially as and for the purposes herein set forth and as illustrated on the
accompanying drawing.
2. An improved form of bogie supporting the ends of adjacent carriages,
substantially as and for the purpose set forth.
Dated this Eleventh day of February 1895.
JOHN P. O'DONNELL,
70 & 71, Palace Chambers, Westminster, London, S. W.,
Agent for the said Applicants.