Improvements in and commented
Year: 1897

page_text: Date of Application, 5th June, 1897
Complete Specification Left, 5th Apr., 1898-Accepted, 7th May, 1898
Improvements in and commented WIN
I, CHARLES HIBBERT BERRY, of 18, Heslington Street, Moss Side, Manchester, in
the County of Lancaster, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to the method of and means for forcing lubricants against
pressure or resistance.
At present, in the type of apparatus to which these improvements relate, the lubri-
cant is generally forced either by the intermittent mechanical forward feed of a
piston in a cylinder or by the constant pressure of live steam at the back of a piston,
or in some analogous manner.
According to my present improvements I employ a piston in a cylinder, but
reciprocate the piston by the pressure of steam or other fluid derived from the
Thus, in the case of a piston
oylinder of a steam engine or other prime motor.
operated by ratchet feed to force the lubricant, I connect my auxiliary cylinder
with the steam or other cylinder by means of the indicator cock or otherwise. Then,
for every stroke of the motor piston in one direction, I obtain a stroke of the piston
in my small auxiliary cylinder. This piston is connected with the ratchet lever in
such a manner that for every stroke in my auxiliary cylinder, the ratchet wheel is
If a T branch
advanced in the same way as when actuated in the ordinary manner.
pipe be fitted to the cylinder of the prime motor, it will be evident that thereby my
auxiliary can be fitted to one branch and be actuated, without interfering with the
indicator, which is fitted to the other branch of the pipe. Also, that my auxiliary
oylinder can be arranged in any convenient position near to or away from the
engine.
The return stroke of the piston can be aided or effected by a spring or weight or
otherwise, and the length of the stroke may be varied at will by regulating the
position of an adjustable stop.
I can arrange my small´auxiliary cylinder in such a manner that while it is
actuated by fluid pressure on one side of the piston, the other side of the piston cau
be in contact with the lubricant. At the back stroke of the piston, the lubricant is
drawn into the cylinder or a chamber connected therewith, and at the forward stroke
it is forced outwards to the desired points. The necessary valves to control the
direction of flow of the lubricant are employed and may be of the ordinary construc-
tion.
Tho pressure at which the lubricant is delivered may be determined by the
difference in area of the piston and of the cross section of the piston rod.
Or, instead of employing my auxiliary cylinder directly in forcing the lubricant,
I may use it indirectly. Thus, I may have the lubricant contained in a separate
closed vessel apparatus or appliance and forcibly displace it thence to the parts to be
lubricated by pumping or forcing therein any suitable gaseous or liquid fluid by
means of my auxiliary cylinder.
1007

page_text: improvements in and connected with Mechanical Lubricators.
I, CHARLES HIBBERT BERRY, of 16, Heslington Street, Moss Side, Manchester, in
the County of Lancaster, 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 the method of and means for forcing lubricants against
pressure or resistance.
At present, in the type of apparatus to which the invention relates, the lubricator
is generally forced either by the intermittent mechanical feed forward of a piston in
a cylinder or by the constant pressure of live steam at the back of the piston, or in
some analogous manner.
Thus,
According to the present invention I employ a piston in an auxiliary cylinder,
but I cause the piston to reciprocate by means of the varying pressure of the steam
or other fluid derived from the cylinder of a steam engine or other prime motor.
The steam may be lead in on the underside of the piston so as to effect the outward
stroke, and the inward stroke may be effected by means of a spring or weight which
returns the piston as the steam pressure falls. The piston is thus reciprocated and
its motion may be utilised in any convenient manner to operate a lubricator.
for example, in the case of a lubricator in which the lubricant is forced forward by
the intermittent motion of a piston actuated by a ratchet device, the ratchet lever
may be connected to the rod of my steam operated auxiliary piston and be recipro-
cated therewith and thereby. The necessity for connecting the lubricator to some
moving part of the engine or mechanism to be lubricated is thus obviated.
desired the steam operated piston of the auxiliary cylinder may be employed directly
to force the desired lubricant. For this purpose the piston may have one side which
comes into contact with the lubricant, of much smaller area than that with which
the steam comes into contact. The outward stroke of the piston forces the lubricant
through a non-return valve, and the inward stroke draws in a fresh supply of lub.i-
cant through a non-return valve from a reservoir or other source.
If
In order that my invention may be more readily understood I have her. to
appended a sheet of drawings which illustrate one form of my improved apparatus in
vertical section.
The lower end of the
A is the auxiliary cylinder containing the piston or ram B.
cylinder is connected by the pipe C with the interior of the cylinder of a steam
engine or the equivalent part of any suitable prime motor. Thus, when the motor
cylinder is filled with steam at its highest pressure the piston B in the auxiliary
cylinder is forced outwards and is returned by means of a spring or weight as the
pressure falls or the steam is exhausted. A reciprocation of the piston B is thus
effected and the reciprocal motion may be conveyed and imparted to a lubricator or
lubricators in any desired manner. In the apparatus shown in the drawing the
piston rod D passes through a gland in the end of the cylinder and is preferably
guided and supported by the attached yoke E which is capable of sliding along the
screwed rods F, G. The extent of the stroke of the piston may be limited by the
two lock nuts 1, 2, on each rod which may be screwed towards or away from the
yoke E. The return stroke of the piston may be effected in any convenient manner,
but it is preferred to employ for this purpose the helical spring H the ends of which
abut respectively against the yoke E and the bridge piece J. This bridge piece may
be secured at any convenient noint along the rods F and G by means of its lock nuts,
so as to vary the amount of pressure exerted by the spring. The motion of the
piston rod may be communicated by links or other convenient means to the
operating mechanism of any convenient type of lubricator.

page_text: The apparatus may be equally well employed for directly forcing a lubricant. For
this purpose the side of the piston B, which is not in communication with the steum,
is of reduced area, and the lubricant may have direct access to this reduced side. In
the example illustrated the piston has its reduced side within a chamber K formed
within the cylinder A. Opening into this chamber are two plugs or conuec-
tions L, M, both of which are furnished with non-return valves. The connection L
may be in communication with a reservoir or supply of the lubricant, and the
connection M may communicate with the mechanism or the like which has to be
lubricated. The outward stroke of the piston, therefore, forces any lubricant which
may be within the annular chamber K out through the part M, while the inward
stroke of the piston draws in a fresh supply through the part L.
Instead of employing the reduced side of the piston to directly force the lubricant,
it may be employed to force any suitable liquid or gaseous fluid into a closed recep
tacle containing the lubricant which is thereby displaced, or any other means of
utilising the reciprocal motion of the piston may be employed for forcing or feeding
a lubricant.
It will, of course, be understood that although I have only illustrated a form of
apparatus which may be employed for either directly forcing the lubricant or for
operating any suitable mechanical lubricator or for both, the apparatus may be
constructed for either purpose alone and its construction may be varied or altered
without departing from the spirit of my invention.
Having now particularly described 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 combination with a mechanical lubricator of an auxiliary cylinder which
is connected to the cylinder or the like of a prime motor and contains a piston or ram
the reciprocations of which are employed to operate the lubricator, constructed,
arranged and operated substantially as herein before described and as illustrated by
the accompanying drawing.
2. A lubricator consisting of a cylinder which communicated with the cylinder
of a steam or other engine, a ram or piston contained within the cylinder and
having its side away from the steam of reduced diameter, and devices communicating
with the parts to be lubricated and the supply of lubricant, so that upon the
reciprocation of the piston the lubricant is alternately drawn in and expelled, con-
structed, arranged and operated substantially as hereinbefore described and as
illustrated by the accompanying drawing.
3. A lubricator constructed urranged and operated substantially as herein before
described and as illustrated by the accompanying drawings.
4. Apparatus for use with and for imparting motion to a mechanical lubricator,
constructed arranged and operated substantially as hereinbefore described and as
illustrated by the accompanying drawing.
Dated this 4th dox of Anril A T) 1809