Improvements in Lubricators.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Lubricators.
I, FRANÇOIS N. SAUTENARD of 15 rue de Richelieu Paris in the Republic of
France, 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
foliowing statement :-
This invention relates to improvements in apparatus for lubricating ordinary
mechanical contrivances and also apparatus subjected to more or less pressure by
direct local application or by application from a distance by means of fluid under
pressure operating upon a suitable arrangement of pistons of different areas and
which are herein termed "differential pistons."
The accompanying drawing represents a lubricator constructed according to this
invention and in both figures of which the same letters refer to the same parts.
Fig. 1 is a transverse vertical section of the lubricator showing the arrangement
of the different parts in its interior.
Fig. 2 is a plan of the same.
This lubricator can be applied directly to any part which requires lubricating or it
can be arranged to lubricate from a distance such portions of machinery as may be
subjected to atmospheric or other and higher pressure.
This lubricator consists of a cylinder a of brass or other suitable metal and which
is bored out smoothly at its inner part into which is placed the hollow piston 6 which
is provided with a flange c and which piston is of such dimension as may be requisite
for the necessary pressure to be applied upon the lubricated part at a distance or to
lubricate mechanical contrivances which are subjected to a high pressure.
The piston b appears as an open cylinder when seen from above while the lower
part of the same is for instance provided with water-tight packing d. On the said
lower part of the hollow piston & the steam, compressed air water or other motive
agent employed will operate and push the same upwards in the cylinder a.
The hollow piston is bored out smoothly at its inner part and slides over the
stationary piston which is of greater length than the stroke of the moving piston b.
The piston fis provided with water-tight packing d' and is held in position by the
cylinder a and frame g which may be bolted to the upper flange of the cylinder a or
formed in part with the said cylinder.
This stationary piston is provided with several openings which connect the
interior of the hollow piston b with the chamber k in the upper part of the piston f.
Upon this chamber k is placed the funnel m closed by the cover / which is suitably
secured to the edge of the said funnel; and after the removal of such cover the
lubricant may be charged into the interior of the piston 6 through the chamber k and
openings when it is required to fill the apparatus.
Upon the lateral surface of the chamber k are formed one or several holes which
are connected with the distributing tube of the lubricator. The screw threaded valve
spindle o working in the nut r arranged in the tube n may be operated by the hand
wheel q; the said rod o through the valve p regulates the effective area of the outlet
opening p' and thereby regulates the passage of the lubricant through the pipe s.
pressure
The chamber k may be provided with one or more of the beforementioned
distributing tubes n. The motive or pressure agent is introduced into the cylinder a
by means of the tube u upon which is fixed the three-way stop cock v. The
applied whether in the form of steam, compressed air or water, enters by the opening u¹
of the cock v and passing through the tube u enters the cylinder a and operates upon
the piston so as to raise it and thereby force out from within b and through to the
chamber the lubricant stored in b. The lubricant passes from the chamber k through
LD

page_text: the distributing tubes n and is conducted to the parts which are to be lubricated no
matter at what distace they may be from the apparatus before described.
The fluid or condensed water contained in the cylinder a when the piston & contains
no more lubricating substance may be drawn off when the piston b is being filled by
means of the channel t of the stop-cock v.
To move the piston 6 back to its original position, the lubricant is driven into it by
means of a hand pump which may be screwed upon the funnel m after the lid or
cover has been taken off the condensed liquid from the cylinder a escapes through
the channel t of the stop-cock v in the same proportion as the filling of the piston b
is effected.
To ascertain the quantity of lubricant applied I attach upon the outer surface of
the piston ba scale y which indicates the quantity of lubricant discharged at each
movement of the piston b within the cylinder a.
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
what I claim is ;-
1. In a lubricator the application of steam or other fluid pressure to one of a
series of differential pistons substantially as described.
2. A lubricator such as described characterised by the combination of a cylinder
into which is conveyed steam or other fluid pressure to operate an arrangement of
differential pistons whereby one piston will be moved within the said cylinder by the
said pressure and sufficient pressure will be applied to the lubricating substance to
force it out through the other piston which is stationary substantially as described.
3. The arrangement of automatic lubricator provided with a series of differential
pistons therein substantially as described.
4. The arrangement and combination of parts constituting the complete lubricator
substantially as herein described.
Dated this 23rd day of December 1889.
ח חוזA-
W. P. THOMPSON & BOULT,
Agents for the Applicant.