Improvements in and relating to Stuffing Boxes and the Means of Lubricating the same.
Year: 1896

page_text: Date of Application, 26th May, 1896
Complete Specification Left, 24th June, 1896-Accepted, 24th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Stuffing Boxes and the Means of
Lubricating the same.
I JAMES BRACKENBURY DAVIS of 24 Strathleven Road, Acre Lane,
Brixton S.W. Mechanical Engineer do hereby declare the nature of this
invention to be as follows:-
A ring of metal or any suitable material of a form similar to that shown in the
accompanying drawing at A to be inserted into the stuffing box, this ring having
annular chambers B & C to act as oil holders in order that the ram or piston rod
acting through the stuffing box is always kept surrounded by and in contact with
the oil or lubricant the ram or piston rod being thus at all times provided with the
means of lubrication at the point where it is most required and is in its ascent and
descent lubricated throughout its whole length without waste of oil and is kept
clean by the packing rings and no dirty oil can gather or be left clinging to the
top end of the ram or piston rod.
This ring has a diaphragm in the centre marked D with holes or slots cast or
machined through in such a manner that the chamber marked B is always in
connection with the chamber marked C for the supply of oil to the ram or piston
rod. The oil forining a complete circle and always being in contact with the ram
or piston rod.
The chambers B & C are in connection with the lubricator E and the bottom
of this lubricator is in connection with the water chamber in cylinder.
I therefore utilize the water power contained in this cylinder to force the oil
against the ram and this action immediately takes place when the ram is put into
action.
The flow of oil is regulated by the valve F, the valve G being used to cut off
the water at any time and the cup valve H at top being used for filling in the oil
and the valve at bottom for emptying of surplus water to facilitate refilling.
Any form of lubricator can be used that is actuated by the water power and
similar to sketch No. 2 drawn to a smaller scale. This has a piston & rod
intervening between the water & the oil. This allows of the quantity of oil in the
lubricator being determined at any time.
I therefore claim the above means of lubricating rams & piston rods, that is :-
A ring of material A placed in the stuffing box as shewn in sketch in conjunction
with a lubricator the oil being forced through the lubricator & against the ram
or piston rod by the water pressure in cylinder.
Dated this 26th day of May One thousand eight hundred and ninety-six.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Stuffing Boxes and the Means of
Lubricating the same.
I, JAMES BRACKENBURY DAVIS of No. 147 Stockwell Park Road,
London, S.W., formerly of 24 Strathleven Road Acre Lane Brixton, S.W.,
Mechanical 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:-
A ring of metal or any suitable material of a form similar to that shown in the
drawing left with the Provisional Specification at A; to be inserted into the
stuffing box, this ring having aúnular chambers B and C, to act as oil holders in
order that the ram or piston rod acting through the stuffing box is always kept
surrounded by and in contact with the oil or lubricant, the ram or piston rod
being thus at all times provided with the means of lubrication at the point where
it is most required and is in its ascent and descent lubricated throughout its
whole length without waste of oil and is kept clean by the packing rings and no
dirty oil can gather or be left clinging to the top end of the ram or piston rod.
This ring has a diaphragm in the centre marked D with holes or slots cast or
machined through in such a manner that the chamber marked B is always in
connection with the chamber marked C for the supply of oil to the ram or piston
rod. The oil forming a complete circle and always being in contact with the ram
or piston rod:
The chambers B and C are in connection with the lubricator E and the bottom
of this lubricator is in connection with the water chamber in cylinder.
I therefore utilize the water power contained in this cylinder to force the oil
against the ram and this action immediately takes place when the ram is put into
motion..
The flow of oil I regulate by the valve F, the valve G being used to cut off the
water at any time and the cup valve H at top being used for filling in the oil and
the valve at bottom for emptying of surplus water to facilitate refilling.
Any form of lubricator can be used that is actuated by the water power and
similar to sketch No. 2 drawn to a smaller scale. This has a piston and rod
intervening between the water and the oil. This allows of the quantity of oil in
the lubricator being determined at any time.
Having now particularly described and ascertained the nature of my said inven-
tin, and in what manner the same is to be performed, I declare that what 1
claim is :-
The above means of lubricating rams and piston rods, that is a ring of
material A placed in the stuffing box as shown in sketch, in conjunction with a
lubricator, and this method of forcing the oil through the lubricator and against
the ram or piston rod by the water pressure in cylinder.
Dated this 24th day of June 1896.
JAS. B. DAVIS.