IMPROVEMENTS IN VERTICAL STEAM AND OTHER MOTIVE POWER ENGINES
Year: 1880

page_text: LETTERS PATENT to Robert Wilson, of Patricroft, in the County of Lancaster,
'
"
Engineer, for an Invention of IMPROVEMENTS IN VERTICAL STEAM AND
OTHER MOTIVE POWER ENGINES,"
PROVISIONAL SPECIFICATION left by the said Robert Wilson at the Office
of the Commissioners of Patents on the 8th September 1880.
ROBERT WILSON, of Patricroft, in the County of Lancaster, Engineer.
"IMPROVEMENTS IN VERTICAL STEAM AND OTHER MOTIVE POWER ENGINES."
My Invention is particularly applicable to unbalanced vertical steam and other
motive power engines, and it consists in obtaining a perfect balance with or
without a fly wheel by means of a counterbalance weight suspended by a strap,
chain, or otherwise, which strap or chain passes over a pulley or pulleys above the
cylinders, and is connected to the piston or to the crosshead to which the pistons
are attached; or a lever or levers with segmental ends may be used in place of the
pulley, the counterbalance weight being attached by strap or otherwise to one end,
and the piston or crosshead being attached to the opposite end. By means of my
improvements the heavy vertical moving parts may be perfectly counterbalanced,
and engines may be run at a higher speed and with less power than heretofore.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Wilson in the Great Seal Patent Office on the 5th March
1881.
ROBERT WILSON, of Patricroft, in the County of Lancaster, Engineer.
“IMPROVEMENTS IN VERTICAL STEAM AND OTHER MOTIVE POWER ENGINES."
My Invention is particularly applicable to unbalanced vertical steam and other
motive power engines, and it consists in obtaining a perfect balance with or
D411

page_text: without a fly wheel by means of a counterbalance weight suspended by a strap,
chain, or otherwise, which strap or chain passes over a pulley or pullies above the
cylinders, and is connected to the piston or to the crosshead to which the pistons
are attached, or a lever or levers with segmental ends may be used in place of the
pulley, the counter balance weight being attached by a strap or otherwise to one
end, and the piston or crosshead being attached to the opposite end.
By means of my improvements the heavy vertical moving parts may be perfectly
counterbalanced, and engines may be run at a higher speed and with less power
than heretofore.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying two Sheets of Drawings, reference
being had to the figures and letters marked thereon.
On Sheet 1, Fig. 1 is a front elevation of a vertical blowing engine to which my
Invention is applied; and Fig. 2 is an end elevation of the same.
a, a, are the
two steam cylinders; al is the blowing cylinder; a³, a³, are the piston rods of the
steam cylinders; and as is the piston rod of the air cylinder; the piston rods are
all attached to the crosshead b, which works in slots b¹; c, c, are the straps con-
nected at one end to the crosshead, and to the other end of which are suspended
the counterbalance weights; these straps are attached to the crosshead b by means
of links c³, and pass over the balance pulleys c¹, c', which are fixed upon a shaft c³,
turning in-bearings : To the other end of the-straps c, c, are attached rods-c, by
means of universal joints c, and on the ends of the rods c are placed the counter-
_balance_weights_c..
On Sheet, 2, Fig. 3 shows a similar engine to which my Invention is applied,
levers with segmental ends being used instead-of-pulleys to connect-the-countor-
balance weights to the crosshead; there are two steam cylinders. a and a' is the
blowing cylinder; b, the crosshead; c, c, the straps which are attached to the tops
of the segmental ends d, d, of the levers d', the ends of the outer straps being
attached to the rods c¹ by means of the universal joints, and the rods c' carry at
their ends the counterbalance weights cº. The lever d' oscillates on a centre d³
working in bearings which are carried from the engino house wall or supported
in any other convenient manner.
By the use of my Invention the vertical moving parts of engines of any size or
weight may be accurately counterbalanced, and the engines may be run at a high
speed with comparatively little power; the jar or shaking and consequent injury
to the engine house and fittings is obviated.
My improvements are applicable to any unbalanced vertical steam engine.
Having stated the nature of my Invention, and described the manner of per-
forming the same, I would have it understood that I do not limit myself to the
details given, as they may be varied or modified, and one or other number of
pulleys or levers with counterbalance weights may be used if desired, and what
I claim is,―
Balancing vertical engines, substantially as herein shown and described.
. In witness whereof, I, the said Robert Wilson, have hereunto set my hand
and seal, this First day of March, One thousand eight hundred and eighty
one.