Year: 1898

page_text: Date of Application, 7th Dec., 1898
Complete Specification Left, 6th Sept., 1899-Accepted, 11th Nov., 1899
THOMAS PARKINSON, of Britannia Works, Canterbury Street, Blackburn, in
the County of Lancashire, Iron and Brass Founder, do hereby declare the nature
of this invention to be as follows:-
-
A sight feed lubricator for steam or other cylinders consisting of a tank with
one or more pumps feeding an overhead tank with one or more outlets arranged
with overflow to keep one constant height of oil in same. The outlet or outlets
in the overhead tank to be placed directly over the pump or pumps, and form
the sights through which the drops of oil fall into the suction opening of the
pump to be forced to the cylinder. For a one sight lubricator one pump is
arranged to feed the overhead tank and the cylinder at the same time, for a two
sight lubricator an additional pump is fitted to force to the cylinder only. The
pump is made with one ram of two different diameters with a suction and delivery
valve for the large diameter to feed the overhead tank and a delivery valve only
for the small diameter to force to the cylinder.
1300
THOMAS PARKINSON, of Britannia Works, Canterbury Street, Blackburn, in
the County of Lancashire, Iron and Brass Founder, 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 an improvement in apparatus for supplying lubrication
to steam cylinders, valves, and bearings which has hitherto been done under
pressure or vacuum by means of drops of oil floating up through water confined
in a glass tube or sight under pressure, which glass tube often bursts, is dangerous
and gets very dirty so that the drops of oil cannot be seen.
The object of this invention is to do away with the glass sight and allow the
drops of oil to be seen but not in a glass tube or sight and not under pressure.
To do this I use a tank of any suitable form marked A on accompanying drawing
in which is fixed a pump, having a ram D with two diameters, a vertical pipe K
which carries the upper tank E in which is fixed the outlet valve or sight G.
The action of the lubricator is as follows:-The rocking shaft C works the
pump ram D the larger diameter of which lifts the oil from the lower tank A
by means of the ball valves and the pipe K up to the tank E where the oil is

page_text: kept at one constant height by means of an overflow pipe which may be fixed
at any convenient place in the tank. The sight G is regulated to give as many
drops of oil per minute as may be desired or will give a continuous stream
or may be shut off completely. The oil drops from G to the mouthpiece H and
thence into the pump chamber I and is forced by the smaller diameter of the
ram 1 past the valve J on to the cylinder valve or bearing.
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. A combination of tanks with a pump having a ram of two different diameters
with a suction and delivery valve for the large diameter to feed the overhead
tank and a delivery valve for the small diameter to force to the cylinder valve
or bearing.
2. An overhead tank which maintains the oil at one level by means of an
overflow pipe causing the oil to drop at the sights regularly and equally as
required.
Dated this 5th day of September 1800