Lubricating Material to Steam Engines and like Purposes.
Year: 1885

page_text: Lubricating Material to Steam Engines and like Purposes.
I JOHN SNOWDON Junior, of number 38 Old Church Road, Stepney London, E.
in the County of Middlesex, Manufacturer do hereby declare the nature of my
invention for "IN IMPROVED DEVICE OR CONTRIVANCE FOR THE SUPPLY OF
LUBRICATING MATERIAL TO STEAM ENGINES, AND LIKE PURPOSES."
The main objects sought to be attained by my Invention are to produce a novel,
simple device or contrivance such as will allow of the convenient supply and
delivery of semi-solid lubricants (such for instance as the lubricant known as
"Asbestoline") to the cylinders of steam engines and the like with the especial
view to the facile charging or supplying of said lubricants into the interior of the
containing vessel therefor.
In carrying out my Invention I use a cylindrical containing vessel or receptacle
provided at its lower end with an ordinary discharge cock or outlet for the passage
there through of the lubricating material. The upper end of said cylindrical
receptacle is open until fitted with a removeable cover or lid and accessory parts
as hereinafter mentioned. Said lid or cover is provided with an internal flange
which takes against a white metal rim or annulus (or a rim of other suitable soft
metal or compounds of metals adapted for the purpose of effecting a closure at this
part) surrounding the interior of the top of the containing vessel or receptacle
aforesaid.
A screwed spindle or stem serving as a piston rod and having at its lower end a
piston fitted thereto, is arranged to work through a raised bush or boss formed on
top of the lid or cover aforesaid and is actuated by a spur wheel surrounding the
upper end of said screwed spindle or piston rod. Motion is given to the spur wheel
aforesaid through the intervention of any suitable or convenient mechanism
introduced between the spur wheel aforesaid and any convenient portion of the
working mechanism of the steam engine or motor with a view to ensure the gradual
depression of the piston within the vessel or receptacle containing the lubricating
material and thereby consequently the gradual emission of the latter through the
aperture at bottom of said containing vessel; provided always, that the main or

page_text: "
essential feature of my Invention is maintained, namely that which consists in my
being thereby enabled,-when the receptacle aforesaid has become discharged of its
contents, to remove the screwed piston rod and piston, the lid or cover and the
accessory parts aforesaid, bodily, so as to allow of the ready and unimpeded
charging of the interior of the containing vessel with "Asbestoline
or other
semi-solid lubricant, lubricating material or lubricating compound employed.
When the containing vessel has been charged; the lid or cover formed and
adapted as aforesaid is drawn tightly over by the intervention of clips and screws
or equivalents so as to ensure a close fitting joint with the internal soft metal ring
at top of the containing vessel or receptacle as aforesaid.
Dad thin Tad Invinc Crustruhu 10OK

page_text: An Improved Device or Contrivance for the supply of
Lubricating Material to Steam Engines and like Purposes.
"
I, JOHN SNOWDON Junior, of 38 Old Church Road, Stepney, London E. in the
County of Middlesex, Manufacturer, do hereby declare the nature of my invention
for
AN IMPROVED DEVICE OR CONTRIVANCE FOR THE SUPPLY OF LUBRICATING
MATERIAL TO STEAM ENGINES, AND LIKE PURPOSES," and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement and accompanying sheet of drawings, in which latter
the same letters of reference are employed to denote like parts throughout the
several views: Figure 1 being a vertical sectional elevation; Figure 2 a vertical
elevation, and Figure 3 a half sectional plan view on line A, B, Figure 1, of the
steam lubricating device or impermeator according to my invention.
I employ a cylindrical containing vessel or receptacle a, provided at its lower
end where attached to, say a steam engine cylinder, with a discharge cock b, for
the passage therethrough of the lubricating material. The containing vessel or
receptacle a, is fitted at top with a removable lid or cover A, formed on its under
face with a circumferential flange piece c, which takes against a suitable packing
material inserted in the circumferential recess d, formed around the top of the
containing vessel a, aforesaid for the purpose of effecting a thorough closure
between the lid or cover A, and said containing vessel or receptacle a.
A screwed spindle or stem e, serving as a piston rod and having at its lower end
a piston f, is arranged so as to work through a raised boss, bush or stuffing box g,
formed on the top of the lid or cover a, and has fitted thereon the geared wheel h.
With a view to ensure the gradual lowering down of the piston f, within the
vessel containing the lubricating material, and consequently the gradual emission
of the latter through the discharge cock or passage way b, to allow of the
permeation of the lubricating material, I prefer to adopt the following device or
mechanism. A lever arm i, is introduced between the spur wheel h, and any
revolving shaft or other convenient working part of the engine for obtaining
reciprocating motion. Said lever arm i, by means of a pawl j, rotates a ratched
toothed wheel k, adapted to a spindle l, having thereon a worm m, gearing into a
worm pinion n, which in turn gears into the wheel h, hereinbefore mentioned
attached to the sleeve p, said sleeve being closed at its lower end, and tapped and
screwed to receive the screwed piston rod e, herein before referred to, which, with
the piston f performs the function of forcing the lubricant through the outlet at b.
When the piston reaches the bottom of the cylinder as shown in Figure 1, the
rod q which is fitted to the end of the piston rod e, and passes through the top of
the sleeve p, aforesaid, comes in contact with a projecting arm r, of the pawl j,
and takes same out of gear with the wheel h. The further downward travel of the
piston rod and piston, is thus automatically arrested, and the risk of straining or
breaking any of the working parts averted.
Then, in order to allow of the facile charging of the containing cylinder or
receptacle a, with any semi-solid lubricant (this forming the essential feature in
my Invention)-such for instance that known as "Asbestoline"-it is only
necessary by the operation of the lever arm i, and other gearing aforesaid, to

page_text: raise the piston until it will be received and contained in the recess under the lid
or cover A, when on slackening the butterfly nuts 8, through the intervention of
the spring, t, the pressure of the circumferential flange piece o, on the underface of
the cover A, upon the corresponding packed recess d, is relieved, and the whole
of the parts aforesaid above the lid or cover A, are swivelled round on the stud or
bolt u, as shown in the half sectional plan view Figure 3. The receiver, cylinder
or vessel a, having been charged with the lubricant, the cylinder cover is replaced,
the butterfly nuts screwed home so as to effect a thorough closure and the several
working parts being now in gear, the lubricating device is ready for use again.
Referring to Figure 1, the device shown at w, in conjunction with, and adapted
to the discharge opening at b, at the bottom of the containing cylinder or receiver a,
is a provision which may be adopted with a view to guarding automatically against
the contingency of the steam getting access to the contents of the containing vessel
or receiver which might arise in the event of the attendant in charge of the engine
neglecting to shut off the discharge cock at b. Said device consisting as shown, of
a spring ball valve. Also, I have shown (Figures 1, and 2,) at x, y, an arrangement
which I may adopt for the purpose of blowing through or cleaning the apparatus as
also in certain cases of facilitating the discharge or emission of the lubricant.
Neither of the last above referred to and described devices however, form
essential or distinctive parts of my Invention.
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:-
I claim, for the purpose of supplying semi-solid lubricants to steam engines and
the like, the device or contrivance substantially as herein set forth.
Dated this 1st day of Mov 1988
JAMES STEVENSON,
Agent for Applicant.