MENTS IN STEAM ENGINES
Year: 1883

page_text: LETTERS PATENT to William Henry Watson of Inver Horsforth near Leeds,
William Strother of Killinghall near Ripley and Joseph Spence of 4 Eaton
Terrace, High Harrogate all in the County of York executors of the late
William Watson of Leeds and Harrogate in the County of York for an
PROVISIONAL SPECIFICATION left by the said William Watson at the
Office of the Commissioners of Patents on the 2nd June 1883.
WILLIAM WATSON of Leeds and Harrogate in the County of York
MENTS IN STEAM ENGINES
"
"IMPROVE-
My improvements have reference to steam engines generally, and its object is to
dispense with the ordinary stuffing boxes employed for preserving piston rods
steam tight in cylinder covers, it is also applicable to trunk pistons for a similar.
purpose.
In order to preserve the piston rods steain tight in the cylinder cover I apply a
split ring or rings on the cylinder cover and round the piston rod.
Each ring is
made to fit close to the piston rod by external pressure. The periphery of the
rings by preference are made slightly taper or conical and over them is fitted a
cap, the interior of which is bored taper to correspond. On this being tightened
down by bolts or screws the rings are pressed against the piston rod to any desired
extent.
Compensating springs may be employed on these bolts to prevent the rings
binding on the piston rod too much, at the same time to press the rings up to the
piston rod as it or the rings are worn down.
The rings may also be pressed up to the piston rods by means of set screws
acting against short compensating spiral springs which act directly on the periphery
of the rings. Similar arrangements to those above described are employed at the
outer end of the cylinders of steam engines with trunk or plunger pistons for the
purpose of preserving the trunk or plunger piston steam tight.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Henry Watson; William Strother and Joseph Spence,
executors of William Watson, deceased, in the Great Seal Patent Office on the
1st December 1883.
WILLIAM HENRY WATSON of Inver Horsforth near Leeds, WILLIAM STROTHER
of Killinghall near Ripley and Joseph Spence of 4 Eton Terrace, High Harrogate
all in the County of York executors of the late William Watson of Leeds and
Harrogate in the County of York "IMPROVEMENTS IN STEAM ENGINES"
The said Invention has reference to steam engines generally and its object is to
dispense with the ordinary stuffing boxes employed for preserving piston rods
steam tight in cylinder covers, it is also applicable to trunk pistons for a similar
purpose
In order to preserve the piston rods steam tight in the cylinder cover I apply a
split ring or rings on the cylinder cover and round the piston rod. Each ring is
made to fit close to the piston rod by external pressure The periphery of the
rings by preference are made slightly taper or conical and over them is fitted a
cap the interior of which is bored taper to correspond. On this being tightened
down by bolts or screws the rings are pressed against the piston to any desired
extent.
Compensating springs may be employed on these bolts to prevent the rings
binding on the piston rod too much at the same time to press the rings up to the
piston rod as it or the rings are worn down
The rings may also be pressed up to the piston rods by means of set-screws
acting against short compensating spiral springs which act directly on the
periphery of the rings, Similar arrangements to those above described are
employed at the outer end of the cylinders of steam engines with trunk or plunger
pistons for the purpose of preserving the trunk or plunger piston steam tight.
And in order that this Invention may be the more completely understood
reference is given to the accompanying drawings and to the letters and marks
thereon
DESCRIPTION OF DRAWINGS
Fig 1 is a transverse section, Fig 2 an elevation and Fig 3 a sectional plan
through A B Fig 1 shewing these Improvements applied to the ordinary arrange-
ment of piston rod stuffing boxes of steam engines. Fig 4 is a transverse section
and Fig 5 an elevation shewing these Improvements applied to a cylinder cover
specially designed for the purpose. Fig 6 is a transverse section and Fig 7 a part
sectional plan through C D Fig 6 shewing these Improvements applied to plunger
pistons.
At Figs 1, 2, and 3 a is the cylinder cover of ordinary construction and b is the
piston rod.
In order to utilize old cylinder covers or those now in use I apply in
the stuffing box a metal bush c for the purpose of filling it up at the same time
forming an additional bearing for the piston rod
In order to preserve the piston rod tight in the cylinder cover round the piston
rod and on the cylinder cover I apply a split ring or rings d Each ring is made
to fit close to the piston rod by external pressure. The periphery of these rings d
is by preference made slightly taper or conical and over them is fitted the cap e
the interior of which is bored taper to correspond as shown. On the cap e being
tightened down by the bolts f, screws or studs, the rings are pressed against the
piston rod to any desired extent. Compensating springs may be employed on

page_text: these bolts to prevent the rings binding on the piston rod too much at the same
time to press the rings up to the piston rod as it or the rings become worn.
The above description is applicable to Figs 4 and 5 with the exception that when
the cylinder covers are constructed expressly for the purpose, the old stuffing box is
done away with and the short boss g is used instead provided with a bush h of
ordinary construction
Similar arrangements to those above described are applied to the outer ends of
the cylinders of steam engines having trunk or plunger pistons for the purpose of
preserving the trunk or plunger pistons tight. At Figs 6 and 7 an arrangement
of the invention is shewn as applied to plunger pistons of steam engines in which
the rings d are pressed up to the piston b by means of set screws i having the
compensating spiral springs intervening which act directly on the periphery of
the rings d. This arrangement is also applicable to piston rods of ordinary
construction
Although the invention has been shewn as applied to the stuffing boxes of
cylinders it will be clearly understood that similar arrangements are also applicable
to the slide valve spindles of steam engines and similar purposes.
Having now described the nature of the said Invention and shewn by drawings
how the same may be carried into practice we would have it understood that the
Invention is not limited to the precise details or configuration of the parts we
have described and shewn as the same may be varied or inodified without in any
way departing from the nature of the said Invention but what we do claim is :-
-
The arrangement and application of the ring or rings & and the means
employed for imparting the required pressure to the same substantially as and
for purposes herein set forth.
In Witness whereof I the said William Henry Watson for myself and
on behalf of my co-executors the said William Strother and Joseph Spence
have hereunto set my hand and seal this twelvth day of October in the
year of Our Lord one thousand eight hundred and eighty three
TUNAY