IMPROVEMENTS IN APPLYING SPRINGS TO LOCOMOTIVE, RAILWAY, AND OTHER CARRIAGES
Year: 1840

page_text: ...
CONDIE
SPECIFICATION. :
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN CONDIE,
Manager of Blair Iron Works, in the Parish of Dalry, in the County of Ayr,
send greeting.
.:
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the. Seal appointed by the Treaty of Union to be used in
place of the Great Seal of Scotland, bearing date at Edinburgh the Twenty-
seventh day of November, in the fourth year of Her reign, did, for Herself, Her
heirs and successors, give and grant unto me, the said John Condie, Her especial
licence, full power,, sole privilege and authority, that I, the said John Condie,
my.executors, administrators, and assigns, or such others' as I, the said John
Condie, my executors, administrators, or assigns, should at any time agree with,
and no others, from time to time and at all times during the term of years
therein expressed, should and lawfully might make, use, exercise, and vend,
within that part of Her said Majesty's United Kingdom of Great Britain and
Ireland called England, my Invention of "IMPROVEMENTS IN APPLYING SPRINGS
TO LOCOMOTIVE, RAILWAY, AND OTHER CARRIAGES;" in which said Letters Patent
is contained a proviso, that I, the said John, Condie, shall cause a particular
description. of the nature of my said Invention, and in what manner the
same is to be performed, to be inrolled in Her said Majesty's High Court
of Chancellary within six calendar months, next and immediately after the
date of the said in part recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
2
NOW KNOW YẺ, that in compliance with the said proviso, I, the said
John Condie, do hereby declare that the nature of my Invention, and the

page_text: manner in which the same is to be performed, are fully described and
ascertained in and by the following statement thereof, reference being had
to the Drawings hereunto annexed, and. to the figures and letters marked
thereon, that is to say :-
My Invention relates to a mode of applying springs or springs and levers in
such manner as not only to give all the benefit and advantages afforded by the
method now in use, but also to effect the uniform continuity of the pressure
made to bear on the driving or other wheels of locomotive and other carriages,
and promote the constant adhesion of the driving or centre. wheels to the rails
or road; and in order to give the best information in my power, I will
describe. the Drawings. hereunto, annexed; but I would first remark that it is, of
great importance in applying springs to locomotive carriages or locomotive
engines, having six wheels, that more of the weight should be borne by certain
of the wheels than by other of the wheels; and as the invention more par-
ticularly relates to locomotive carriages than to other carriages having six
wheels,, I will confine my description thereto,, as a workman understanding
the; Invention as applied to such purpose, will readily apply the Invention, when
desired, to other carriages having six or more wheels, my Invention. only being
applicable, to. carriages having six or more wheels.
DESCRIPTION OF THE DRAWINGS.
Figures 1, 2, 3, and 4, show various methods of carrying out my Invention;
each having for its object not only to cause the desired proportion of the
whole weight of a locomotive engine to be carried by the driving wheels, but
also to promote the uniform continuity generally; and even when the carriage
or engine is in motion, and when inequalities or unevenness of the surface
travelled over exists of the weight to be borne by the driving and other wheels
in order to obtain for the driving wheels a constant or increased adhesion to
the rails as possible.
Figure 1 shows so much of one side framing of a locomotive carriage as
will enable me to explain the nature of my Invention, and one mode of per-
forming, the same. The engine or carriage is suspended from four points of
bearing a, a, two of which are shown, and two similar ones are applied to the
other side framing of the engine.. On the axis or points of suspension a, a, are
placed levers b, b, such axes a being affixed to the projection c, c, of the
framing; one end of each of the levers 6 is connected with the spring d, there
being, according to this arrangement, only one spring used on each side of the
locomotive engine, and such spring is applied to the bearing of the driving
wheel by the spring pin or bearing, rod 9, and the elasticity thereof is com-

page_text: municated to the other wheels by bearing rods f, f, from the other ends of the
levers b: to those at which those levers are connected with the spring; the
motion of the, two levers; 6 being connected by means of the rod h, as is shown;
and it will be evident that the quantity of weight borne by the driving wheels
will depend on the position of the axes of the levers:6, whether they are nearer.
to or further from these ends of the lever, b, which are attached to the spring d,
so that in carrying out my Invention the axis of the levers 6 is to be placed at a
greater or less distance from those ends of the lever b which are attached to the
spring d, according to the degree of weight desired to be borne by the, several
wheels.
Figure 2 shows another arrangement of parts for obtaining the, same, result,
and acting on like principles, and the parts are, marked with the same letters
of reference, so far as similar parts are used; the principal difference being in the
position of the spring d and the levers b, b, by which the connecting rod h is
dispensed with.
Figure 3 shows another arrangement, having two additional levers h,, h, to
each spring, as is shown, the other parts acting in a similar manner to what
has been before described.
Figure 4 shows an arrangement, where one spring is used on each side of a
locomotive carriage to the driving wheels, whereby so much of the weight of
the locomotive coupled engine as is borne by the four driving wheels will be
equalized on each side by using only one spring for two wheels.
Having thus described the nature of my Invention, and the manner of per-
forming the same, I would remark that it will be evident that the details by
which my Invention may be carried out may be varied, so long as the peculiar
character of the mode of applying springs be retained. But what I claim is
the mode of applying springs to locomotive and railway and other carriages,
whereby the desired proportion of the weight having been caused to bear on
the driving or other wheels, the uniform continuity of that proportion is
effected, and the constant adhesion of the driving or centre wheels to the rails
or road is promoted.
In witness whereof, I, the said John Condie, have hereunto set my
hand and seal, this Twenty-fourth day of May, in the year of our
Lord One thousand eight hundred and forty-one.
35
BALFOUR, B.,
Dalry, in the County of Ayr, Clerk, Witness.
JOHN CONDIE. (L.S.)

page_text: ROBERT WEEMS, of 30, Great George Street, Westminster, Gentleman,
maketh oath, that he is acquainted with the handwriting of 'John Condie, of
Blair Iron Works, in the County of Ayr, Patentee of improvements-in applying
springs to locomotive and railway and other carriages; and this deponent
further saith, that to the best of his knowledge and belief, the signature to
the annexed Specification of his Invention is in the handwriting of the said
John Condie:
Sworn at the Public Office,
the 26th day of May 1841,
before me,
G. WILSON.
REWERMS...
.
AND BE IT REMEMBERED, that upon the affidavit of Robert Weems,
the instrument aforesaid was inrolled word for word in form above written:
And also the instrument aforesaid was 'stamped according to the tenor of the
Statute made in the fifty-fifth year of the reign of His late Majesty King
George the Third.
Inrolled the Twenty-sixth day of May, One thousand eight hundred
and forty-one.
3
. LONDON:
Printed by GEORGE EDWARD EYRE and WILLIAM SPOTTISWOODE,
Printers to the Queen's most Excellent Majesty. 1857.
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