Year: 1887

page_text: 1, JAMES LIONEL GRANDISON of 269 Moss Lane East Manchester in the County
of Lancaster Mechanical Engineer, do hereby declare the nature of this invention to
be as follows:-
-
This Invention relates to Lubricators and to apparatus employed in connection there-
with and it has for its object to secure greater certainty of action and to supply the
lubricating material under controllable pressure.
These Improvements consist in the combination and arrangement of the distributing
apparatus with the supplying apparatus of Lubricators and in the construction of the
supplying apparatus.
'
That part of the apparatus by means of which the distribution of the lubricant is
regulated may be of the sight feed or any ordinary and suitable type and one or more
of them may be used in combination with an apparatus or device for supplying the
lubricant under pressure. The supplying apparatus consists of a cylinder closed at
its ends and fitted with a piston, the rod of which passes through the cover or one end
of the cylinder. The lubricant is supplied as required to the cylinder through a cup
and valve or through a cup or opening at the end of the piston rod which is made
hollow for the purpose, and has its interior in open communication with the inside of
the cylinder. The open or outer end of the piston rod may be closed by a plug or
valve. At one end of the cylinder an outlet is formed which communicates by a pipe
or pipes with the sight feed or other distributing and regulating apparatus which or
each of which is provided with a valve or cock whereby the regulation is effected. At
the other end of the cylinder an inlet is formed which is connected to a steam supply
and to a 'run off cock, or the run off cock may be connected to a separate outlet or
orifice in the cylinder.
An air valve in the cover will permit the escape of air from the cylinder when the
latter is being filled with lubricant.

page_text: The position of the piston rod will at all times indicate what amount of lubricant
is contained in the cylinder.
The effective area of the surface of the piston to which the rod is attached being less
by the area of the piston rod than the other surface, it follows that by varying the
dimensions of the rod, that is to say, by employing a rod of larger or smaller diameter
the pressure under which the lubricant is delivered may be caused to vary to a
corresponding degree relatively to the pressure of steam acting upon the opposite side
of the piston.
Dated this 20th Ja..
A
D 1007

page_text: I JAMES LIONEL GRANDISON-of 269, Moss Lane East, Manchester in the County
of Lancaster, Mechanical Engineer do hereby declare the nature of this invention,
and in what manner the sanie is to be performed, to be particularly described and
ascertained in and by the following statement :-
This Invention relates to lubricators and it has for its object to secure greater
certainty of action and to supply the lubricating material under controllable
pressure.
'
That part of the apparatus by means of which the distribution of the lubricant is
regulated may be of the sight-feed or of any ordinary and suitable type, and one or
more of such distributing apparatus may be used in combination with an apparatus
or device for supplying the lubricant under pressure.
I will proceed to describe my invention with reference to the appended sheet of
drawings which represents a vertical section of the supplying apparatus.
The supplying apparatus consists of a cylinder A mounted upon the base C and
closed at its ends and fitted with a piston B which may be packed with asbestos and
the rod of which passes, through the cover or one end of the cylinder. The lubricant
is supplied as required to the cylinder through an opening at the end of the piston
rod K which is made hollow for the purpose and the interior of which is in open
communication with the interior of the cylinder. As represented in the figure the
upper or outer end of the piston rod is closed by a plug J.
At one end of the cylinder an outlet is formed which communicates with the sight
feed or other distributing and regulating apparatus G which, or each of which is
provided with a valvo F or a cock whereby the supply of the lubricant is regulated.
At the other end of the cylinder, an inlet is formed which is connected to a steam.
supply D, and a run-off cock or opening E, or the run-off may be connected to a
separate outlet or orifice in the steam inlet end of the cylinder. An air valve Lis
fixed in the outlet end of the cylinder, and preferably in the cover to permit the
escape of air from the cylinder when it is being filled with the lubricant. The
coupling N and the union H serve to connect the supply pipe to the sight feed G.
In the drawing M is a screw plug which may be removed for the insertion of
another sight-feed, or similar apparatus, or for a tube communicating with one or
more of such apparatus.
The position of the piston rod K will at all times indicate what amount of lubricant
is contained in the cylinder.
The piston rod is in all cases attached to that side of the piston with which the
lubricant is in contact and the effective area of this side of the piston is consequently
less than the area of the surface of the piston which is exposed to the steam pressure.
It follows therefore that the lubricant will be delivered at a pressure exceeding the
pressure of the steam and that by varying the dimensions of the rod, that is to say

page_text: by employing a rod of larger or smaller diameter, the pressure under which the
lubricant is delivered may be caused to vary to a corresponding degree relatively to
the pressure acting upon the opposite side of the piston.
In an apparatus constructed according to my Improvements the pressure is derived
from the direct action of the steam upon the opposite side of the piston. The pressure
is therefore positive, and no water of condensation from the steam can come into
contact with the lubricant. The steam supply is independent and separate from the
pipes containing the lubricant after it leaves the sight feed or distributing apparatus,
and the lubricant cannot therefore enter the steam space of the supply cylinder.
Finally, the hollow piston rod is used as a means to supply the lubricant to the interior
of the cylinder thus avoiding a separate opening in the apparatus for the purpose.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A lubricating apparatus for supplying lubricants to sight feed and other suitable
distributing apparatus; consisting of a cylinder having a steam inlet at one end and
a lubricant outlet at the other end and containing a piston fitted with a hollow piston
rod projecting through one end of the cylinder and through which the lubricant may
be supplied to the interior of the cylinder, an air valve, means for closing the hollow
piston rod, valves for closing the inlet and outlet to and from the cylinder and a
run-off cock or plug, constructed and arranged substantially as and for the purpose
hereinbefore described.
Dated this Twenty sovanth dov of Tunn AD 1000