Improvement in Steam-cylinders.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvement in Steam-cylinders.
We, CHARLES FREDERICK HINRICHS, Real Estate Dealer, and JOEL CADY
BARKER, Mechanic, both of Poplar Bluff, in the County of Butler, and State of
Missouri, United States of America, 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:-
This invention is an improvement in cylinders and especially in steam-cylinders,
and has for an object to provide a cylinder which when worn by the piston can
be easily and quickly repaired without necessitating the repairing of the cylinder.
The invention consists, broadly, in a cylinder having a removable lining-tube
which can be removed when worn and another substituted in its place.
The invention consists, further, in certain novel constructions and combinations
of parts, as will be hereinafter described, and pointed out in the claims.
In the drawings.
Figure 1 is a perspective view of the cylinder with the lining partly inserted.
Fig. 2 is a detail view of the lining-tube, and
Figs. 3 and 4 are respectively end and cross-sectional views of the improved
cylinder.
When an ordinary steam-cylinder becomes so worn that boring out is required,
it becomes necessary to detach it from the engine-frame or other machinery and
send it off, frequently to a considerable distance, over bad roads, &c., to a repair-
shop. During such interval the engine is stopped and business delayed at a cost
frequently far in excess of the price of a number of new cylinders.
By our invention we seek to avoid the necessity of boring out the cylinders by
providing a removable lining, which receives the wear, and to so secure the said
lining in place that when worn it can be quickly removed and a new one
substituted.
It is
In the construction shown the cylinder is shown as formed with an outer tube
or casing A and an inner tube or lining B. This lining or shell B is fitted in the
casing A, and may be conveniently removed and replaced when desired.
preferred to split the casing A at a from end to end, provide flanges C along the
opposite edges of such split a, and to provide the ends of the casing with flanges D,
The flanges C
to which the cylinder-heads E may be bolted in the usual manner.
may be connected by bolts F, as shown, or in other suitable manner, and when
such flanges C are brought together the casing will be clamped tightly upon the
lining, the connecting-bolts I being regarded as means for clamping the split
casing upon the lining. The lining or shell is provided with a short key or
projection G, which enters a groove or notchy in the casing and holds the lining
from turning therein.
In order to replace a worn lining or shell by a new one, it is only necessary to
take off one of the cylinder-heads and loosen the bolts of the other and those on
the end wise flanges C, when the old shell may be pulled out, a new one inserted,
and the casing and heads rebolted, when a practically new cylinder is provided.

page_text: It is proposed in practice to furnish at least one new lining and also an extra
set of piston-rings with each cylinder, so that if occasion requires the cylinder may
be quickly repaired and a new lining or shell may be procured before the necessity
of repairing again arises.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A cylinder comprising a split tube or casing, a lining tube or shell fitted
removably therein, and means whereby to clamp the casing upon the lining or
shell, substantially as set forth.
2. The improved cylinder herein described, consisting of the casing A, split at a
and provided with longitudinal flanges C, end flanges D, and groove or recess,
the lining or shell B, fitted in said casing and having a projection G, entering the
recess, and the heads and fastening-bolts, all substantially as and for the purposes
set forth.
Dated this 18th day of November 1891
F. W. BARKER,
Applicants' Agent.