IMPROVEMENTS IN LUBRICATORS
Year: 1885

page_text: COMPLETE SPECIFICATION.
I JOHN EDWARD WALSH of Crossley Street Halifax in the county of York
Patent Agent and Consulting Engineer do hereby declare the nature of my said
invention for IMPROVEMENTS IN LUBRICATORS A communication to me from abroad
by Max Schneider of Doos, Bavaria Engineer and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
By means of the lubricator represented in the figs 1 and 2 of the accompanying
design the inventor purposes to press the lubricating grease on to the friction
surface through screw' pressure. This lubricator consists of a body k provided with
a screw-pin, and of a vessel g to which a central screw c is applied; the latter works
into a female screw cut into the plate of the body k. The plate of the body k
(fig. 4) is spanned round by an elastic soft packing-ring b or by a packing cord d
(fig 1), which is wound round it several times; or else the elastic junk-ring b
(fig. 2) is laid firmly into the groove of the vessel g, which is adequately recessed
for it. When the cord d is used (fig 1) its two ends are placed, in order to secure
them into a bore or recess (fig. 2) and are fastened there by means of a
wooden pin.
The lubricators in fig. 1 & 2 operate in the following way: the lubricating
grease contained in the vessel g reaches the body k through opening i from whence
it penetrates through the out flow-opening into the part of the machinery that
has to be lubricated.
In the case of the lubricators 1 and 3 the stuffing material d and b, slides into
the inner casing of the vessel g, whereas in fig 2, it slides over the body k, which is
turned cylindrical. The two wings ff (fig. 2) which are fixed to the vessel g serve
to stop the vessel better when revolving. The chief purpose of the rings and of
the cord d is that they exercise a braking influence on the inner casing of the
vessel g or on the cylinder of the body k (fig. 2, and owing to this braking influence
the application of a special appliance for stopping is dispensed with, which, as is
well known, must not be wanting in any lubricator provided with a direct or
central screw (and exposed to shocks), if an independent automatic severance of the
lubricator is to be avoided. At the same time the ring b or the cord d serve by
stuffing to prevent the grease from flowing out. Through the combination of the
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ring bor of the ring.d, which rub themselves against the inner casing of the
vessel g and against the outer casing of the body k, and through the central-screw o
working in the female-screw of k such a severe friction is produced (in order to
bring about an axial displacement, the braking-rings are forced to make a
revolution on the friction surface), so that even the least automatic axial motion
and by it an automatic severance on the part of the body are prevented. All
leatherings used hitherto in lubricators and made of an elastic material are
submitted to only a relatively small axial motion and cannot produce thereby the
requisite amount of friction and therefore the parts of the lubricator exposed to
shocks are easily displaced.
A construction adapted for special purposes is represented in Fig 1 of the design.
In many cases namely a periodical supply of lubricating grease at intervals of half
a day or of a whole day proves insufficient and an after-pressure of grease when
the engine is working is impossible or attended with danger, thus, for instance, in
the case of lubricators of the crank stuffing-boxes of engines, which are exposed to
a very violent motion, and besides in such cases the perfectly automatic lubricators
are not employed for economical reasons (on account of the waste of material) and
again because the violent shocks prevent any proper regulation of the supply of
grease from these automatic lubricators.
The construction represented in Fig. 1, is intended for parts of machinery
exposed to such strong and violent shocks. It arose from the combination of an
automatic and of a non-automatic lubricator and consists materially of the vessel g,
and of the body k provided with the braking-ring with the only difference
between it and the construction represented in figs 1 and 2, that in this case (fig 4)
the central-screw c is a hollow cylinder in the interior of which, as shown in
fig. 4, a massive or weight-bearing piston p moves. If the vessel g is turned on in
this construction then the piston is pressed upwards by the tension arising in the
interior of the vessel, and exercises then a uniform pressure towards a gradual
automatic delivery of grease, the quantity of which is exactly limited according to
requirement, by which arrangement all waste of grease is prevented-completely.
Fig. 3 is a plan view of fig 1.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1) The application of an elastic braking-ring b or of a cord d wound round the
periphery of the plate b of body and the combination of one of these two packings
with vessel g, which is provided with central-screw c, by which combination u
friction is caused by the revolving motion of the vessel g, which renders an
automatic severance of the vessel g from body k impossible.
2) The vessel g revolving on body k in its firm connection with the central-
screw c.
3) The application of a massive or hollow weight-bearing piston (fig 4) of less
diameter than that of the vessel g of the press-lubricator, for the purpose of
. exercising an automatic pressure on the lubricating material contained in the
vessel g.
JOHN E. WALSH,
Patent Agent,
Crossley Street, Halifax.