Improvements in or relating to Lubricating Piston Rods, Valve Spindles, or other Moving Rods.
Year: 1894

page_text: Date of Application, 27th July, 1894
Complete Specification Left, 23th Apr., 1895-Accepted, 1st June, 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Lubricating Piston Rods, Valve
Spindles, or other Moving Rods.
We, THOMAS MUDD of The Central Marine Engine Works, West Hartlepool,
in the County of Durham Engineer, and JAMES AIREY of 17 Bellaby Terrace,
West Hartlepool, aforesaid, Superintendent Engineer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to lubricating piston rods, valve spindles and other
moving rods.
In carrying the invention into effect, the plan we prefer is to locate around the
rod or spindle a bevelled or dish-shaped vessel, preferably of metal, and in halves
so as to facilitate detachment and replacement. This dish is carried on supports,
preferably from the gland, in such a way that it can be turned around the rod or
spindle. The outside of the dish is grooved or otherwise prepared to receive a
chain, cord, belt or band of any description, which chain or band may be passed
around the dish and thence led away to any convenient place, such as the starting
platform, so that, by pulling upon the chain or band, the attendant can thus easily
and conveniently revolve the dish about the rod or spindle. The chain or band
may be endless by preference, and may be kept taut by a spring or weight or
similar device. In the dish, either secured thereto or loose, there may be placed a
wad or band of any porous material such as wool, hemp, felt, worsted, or a porous
metallic substance, or a coil of wires, or any substance or mixture of substances
that will have sufficient capillary attraction to absorb a lubricant, so that it may
become saturated therewith and act as a moistening medium, transferring the
lubricant supplied to it to the rod or spindle. This wad, pal or band of porous
material is intended to move around the rod or spindle when the dish is revolved
by means of the chain or band, and thus distribute equally the lubricant around
the rod or spindle. The supply of oil may be given either by hand to the wad, or
automatically, the latter being preferable, and in that case an ordinary syphon
lubricator may be used, or a sight-feed lubricator, or other mechanical device for
providing the dish and its wad with a regulated supply of lubricant.
If thought desirable, the chains or bands inay be so connected together that all
the dishes on the rods and spindles in an engine may be moved at the same time
and by one operation, instead of separately, or they may be connected to a moving
part of the engine and turned automatically and continuously whilst the engine is
running.
ليمن
1.1 1004

page_text: Improvements in or relating to Lubricating Piston Rods, Valve
Spindles, or other Moving Rods.
We, THOMAS MUDD of The Central Marine Engine Works, West Hartlepool,
in the County of Durham, Engineer, and JAMES AIREY of 17 Bellaby Terrace,
West Hartlepool, aforesaid, Superintendent 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 :-
This invention relates to lubricating piston rods, valve spindles and other
moving rods.
It is best described by aid of the accompanying drawings, in which,
Figure 1 is a section of gland with our device attached, in which a metallic bush
or pad is used;
Figure 2 a similar view in which a soft textile pad and another shape of dish
are employed;
Figure 3 a similar view showing the dish formed in two halves, the section being
taken on the line Y Z, Figure 4;
Figure 4 a plan ;
Figure 5 an arrangement where several dishes are driven from each other and
from a hand wheel at right angles thereto, the chain to the latter passing over
guide pulleys not shown but similar to those shown in Figure 6 at I;
Figure 6, a similar arrangement for causing the dishes to revolve by attachment
to the engine shaft.
Like figures relate to like parts in the various drawings.
In these, A is the rod or spindle to be lubricated.
Ba bevelled dish which may
be formed for convenience in two halves and united together by the screws C C, as
shown in Figures 3 and 4. This is supported in any convenient manner such as
by brackets D to the stuffing box gland E.
In this dish between it and the
stuffing box gland we place a packing F. This packing is lubricated in any
convenient manner by hand or automatically by a sight feed or other lubricator.
The hand arrangement is shown in Figure 1 at G. H is a chain, cord, belt or
band nearly encircling the dish in the groove H'. This chain or other line alter
passing round the dish is thence led away to any convenient place such as the
starting platform, so that by pulling on the chain or band the attendant can easily
and conveniently revolve the dish about the rod or spindle. The chain or band is
preferably endless and may be kept tight by a tightening pulley and a spring or
weight or other similar device as set forth in Figure 6, or in place of this the
chain or band may be connected to a moving part of the engine and thus turned
automatically and continuously or intermittently while the engine is running.
Further, we may sometimes arrange two dishes one above the other, or a dummy
dish below the regular dish formed as a pulley and rigidly attached to the regular
dish. By this means a series of dishes can be driven by a single chain or by relays
of chains from one point. The wad, band or pad F can be of any porous material
such as wool, bemp, felt, worsted, or even a porous metallic substance such as a
coil of wires, a mass of antifriction metal turnings or a block of metal made porous
by having a number of small holes drilled in it, or any mixture of substances that
will have sufficient capillary attraction to absorb the lubricant so that it may
become saturated therewith and act as a moistening medium transferring the
lubricant supplied to it to the rod or spindle, itself not being an article such as
sand that would cause friction. The object of using the chain and the dish is to
revolve this pad round the rod so that if the lubricant be more abundant on one
part than another it shall not oil on one side only but shall distribute the lubricant

page_text: equally round the rod or spindle. The supply of oil may be given either by hand
to the wad, or automatically, the latter being preferable, and in that case an
ordinary siphon lubricator may be used, or a sight feed lubricator or other
mechanical device for providing the dish and its wad with a regular supply of
lubricant. It is obvious that our device would work to a considerable extent
without the chain, and might then be easily arranged in the body of the gland,
but we much prefer the rotatable dish.
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. The improvement in the lubricating of piston rods, valve rods or other moving
rods, which consists in supplying said rod outside the stuffing box with an absorbent
lubricating device placed round and against the rod and supplied with lubricant
substantially as described.
2. The combination with a moving rod of a dish held substantially in one
position, but free to rotate on the rod enclosing a fibrous or metallic material
supplied with lubricant and held in contact or nearly in contact with the rod
substantially as described.
3. In combination with a device such as described in Claim 2 a chain, wrapping,
conductor-of-motion or other equivalent gearing for rotating the dish.
Dated this 27th day of April 1895
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Agents.