Improvements in Locomotives.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Locomotives.
We, ROBERT SMITII, of Clyde View, Royal Street, Gourock, Renfrewshire, Scot-
land, Engineer, and THOMAS HILL, of Robertson Street, Glasgow, Lanarkshire,
Scotland, Engineer do hereby declare the nature of this invention to be as
follows:-
This invention has reference to improvements in steam locomotives whereby we
utilise whole weight of machine as adhesive power and increase traction force
for a given weight, in some instances we double tractive force of an ordinary
locomotive.
According to our invention we employ one boiler with and fixed to a main
framing and two distinct and separate carriages, known as leading and trailing
bogies. Each bogie is pivotted to boiler framing and supports & carries up same,
and has four coupled wheels, the usual style of locomotive framing,-cylinders,
cranks and gear, with a pivot bracket fixed in centre of framing.
Steam from boiler to cylinder of bogies and exhaust to chimney from cylinders
pass through centre of pivots of bogies.
Bogies being pivotted to main framing near extremities permit our locomotive
to have the utmost freedom in running round curves and inequalities of permanent
way, dispensing entirely with lateral springs, thereby decreasing factor of resist-
ance and leading to economy of power. The wheel base of our locomotive is of
the usual length, and wheels are pitched equidistant over base and all of the same
diameter.
Dated this 26th day of January 1809
D. F. MASON,
Patent Agent, Glasgow.
We, ROBERT SMITH, of Clyde View, Royal Street, Gourock, Renfrewshire,
Engineer, and THOMAS HILL, of Robertson Street, Glasgow, Lanarkshire, Scotland,
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:
1
Our said invention has reference to improvements in steam locomotives whereby
we utilise whole weight of machine as adhesive power, and increase traction force
for a given weight; in some instances doubling tractive force of an ordinary

page_text: And in order that the invention may be properly understood we have appended
the annexed sheet of drawings representing a longitudinal sectional elevation of
a railway locomotive.
According to our invention we employ one steam generator which may be of
our Patent No. 1905 of 1899 improved tubulous type or any ordinary type fixed
to the main framing and mounted on two distinct and separate carriages e, i,
known as leading and trailing bogies. Each bogie has the usual style of loco-
motive framing cylinders, cranks and gear and is pivotted in centre of its
framing by a pivot bracket n projecting from the boiler framing so that each
bogie may swivel freely with respect to the boiler and main framing. The steam
supply pipe o branches off to both centres of bogies and projects downwards
through centre of each bogie pivot. To this projecting part of supply pipe o
is fitted so as to swivel thereat the branch pipe o leading to the cylinders fixed on
bogies. The exhaust steam pipes 2 from cylinders are led into the boiler smock-
box.
Bogies being pivotted to main framing near its extremities permit our loco-
motive to have the utmost freedom in running round curves and inequalities of
permanent way, dispensing with lateral sprngs; thereby decreasing factor of
resistance and leading to economy of power. The wheel base of our locomotive
is of the usual length, and wheels are pitched equidistant over base and all of the
same diameter.
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 locomotive steam engine the combination of a steam generator and self
propelled bogies, substantially as and for the purpose hereinbefore described and
shown.
2. The arrangement and combination of steam generator, steam supply pipes,
and motor cylinders on bogies as set forth and shown.