IMPROVEMENTS IN STEAM LUBRICATORS
Year: 1873

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, Doctor of Laws, for
the Invention of "IMPROVEMENTS IN STEAM LUBRICATORS."-A com-
munication from abroad by William Hamilton, of Pennsylvania,
United States of America.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 8th October 1873, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton
Buildings, London, Doctor of Laws, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN STEAM LUBRICATORS," and have petitioned Her Majesty to grant unto
me, my executors, administrators, and assigns, Her Royal Letters

page_text: Patent for the same, and nave made soiem
355
been communicated to me from abroad by William Hamilton, of
Pennsylvania, United States of America.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of the said Invention, and in what
manner the same is to be performed, in and by the following statement,
reference being had to the accompanying Drawing forming a part of
this Specification :—
The nature of my Invention consists in casting in one piece with or
in securing within the chamber or cup of the lubricator, and extending
horizontally through the same a hollow or tubular bolt provided with
orifices or openings leading to its interior channel, and through which is
received or supplied from the chamber the lubricating material, and
which the tube of the bolt feeds or conveys to the steam pipe, chest, or
cylinder to which it is. attached. This tubular bolt terminates in a point
having a coniform or taper discharge orifice or opening extending
through its entire length. This orifice furnishes a valve seat for the
taper needle point of a spindle, which is inserted and operates-within the
channel or tube of the bolt, and by means of which the flow or quantity
of lubricating material which shall be discharged is regulated.
The relative diameter or dimensions of the discharge orifice and the
needle point are to be such, and herein lies one of the important
advantages of this Invention, that when through the action of the
spindle the valve is closed the taper section of the needle shall not only
fill the orifice, but its point shall protrude or project beyond the dis-
charge outlet of the same, and serves to always keep its passage open
and free from all crustation or other obstruction; this is a difficulty
experienced with all other steam lubricators, and results from the great
tendency which oil, tallow, and the like have to adhere to a highly
heated metal surface.
The said Invention also consists in so recessing the jam nuts which
secure the lubricator to the steam pipe, chest, or cylinder, which it is
designed to supply, as to permit the use of lead gaskets, the recess pre-
venting the spreading out of the lead and making a perfect joint by
having the soft metal gasket a little thicker than the recess.

page_text: The said Invention also consists in providing the chamber of the
lubricator with an adjustable steadying plate to aid in securing in the
desired position the lubricator by means of the hollow wrought-iron
bolt after it has been attached to a steam pipe, chest, or cylinder, the
steadiment in connection with the jam nuts retaining it in a fixed
position.

page_text: constructed of this material, as then the expansion and contraction arc
necessarily alike. But I desire it distinctly understood that there is
nothing arbitrary about the use of any particular metal. This needle D
is provided with a taper point d. The relative diameters of the orifice c
and needle point d should be such, that when the valve needle is screwed
down into the orifice to shut off all further flow of the lubricant, the
point of the said needle shall project through or extend out beyond the
mouth of the orifice as clearly shown in the Drawing, therefore the
orifice will always be kept open and free from crustation. The needle
or spindle D is inserted in and works through a stuffing box A', which is
preferable to the jam nut (although either may be used), and is readily
operated by means of a handle K constructed of wood or other heat non-
conducting material.
On the outer wall of the cup A at the lower section thereof, and in a
line with the pointed projecting section of the hollow bolt B is a socket
bearing E in which is secured so as to be adjustable by means of a screw
e, the steadying or bearing plate E' which serves to assist in retaining
the chamber or cup A in proper position after it has been secured
to the steam chest cylinder or other part. The supply funnel consists of
an inverted cone shaped cup F, and a vertical tube F, which are cast
together and are formed with a shoulder F2 and a screw thread F³ by
means of which the said supply funnel is attached to the chamber. On
the inner wall of the tube F¹ is a screw thread G arranged as clearly
shewn in Figures 1, 3, and 5. From the base of the cup F and through
the surface in which the screw thread G is cut lead annularly running
supply channels f,f,f, and in the inner wall of the tube. F¹ and also
leading through the surface are cut vertical air passages g, J. H is a
screw plug valve and may terminate in a hollow spindle shank H¹
having lateral openings h, h, as shewn in Figures 1 and 3, or the hollow
spindle shank H³ may be dispensed with as shewn in Figure 5. This
plug valve H is inserted in the tube F¹, its screw thread engaging with
the female thread G and the surface of this latter thread, extending
below the discharge orifices of the supply channels ƒ, ƒ, and also below
the inlet or escape openings of the air passages g, g. Each can be
opened and closed at pleasure, simply by turning the plug valve H.
The tube of the sediment cock is screwed into an opening at the base
of the chamber A and is formed with a female screw thread k on its
inner wall, and which terminates in a small valve chamber k³, into this

page_text: chamber leads a channel ³ flaring or cone shaped at its head, and which
furnishes a valve scat for the conical point or end L' of the valve plug L.
This plug is formed with a long armed T shaped channel 7, the lateral
branches of which lead into the chamber k¹.
From the foregoing description the operation of my lubricator will be
readily understood. The lubricator is attached to the steam pipe, chest,
or cylinder which it is designed to supply by inserting the tubular bolt
B, and fastening the same by means of the jam nut E, the adjustable
steadying plate E' aiding to retain it in a true and proper vertical.
position. The lubricant is then poured into the cup F and the valve
plug H is screwed up or elevated to such position as to leave the lower
orifices of the channels ƒ ƒ, and air passages g, g, open and unobstructed.
The air will then escape as the liquid flows in, which is a great advantage,
as it gives the engineer perfect control over the cup whether the enginio
is in motion or at rest, and with no risk of getting scalded with boiling
oil or tallow as frequently happens with the lubricators now in use. So
soon as the chamber is filled the plug H is screwed down entirely
closing the supply connection. The spindle D is now screwed back, and
bringing with it its needle point d, leaves an opening through the orifice
of the point C of the bolt B. The degree of this opening and the
quantity of the discharge depend on the position of the needle point, and
of course can be regulated at pleasure simply by screwing the spindle in
or out as the case may be. The lubricant now enters through the
openings a, a, into the tubular section 6 of the bolt, and is discharged
through the opening c. Steam also enters, and passing out through the
openings a, a, becomes condensed and falls to the lower section of the
vessel, and being heavier than the lubricant always keeps the same in
condition readily to flow or to be fed to the tubular section of the bolt D;
when I empty the cup the amount drawn off is just equal to the capacity
of the same, consequently the lubricant is always above the bolt and in
condition to be fed through the upper openings a, a; and this in con-
nection with the fact that the pressure from the boiler is felt in the cup
or chamber for a period even after the steam is shut off, causes these
improvements to operate with great advantage in going down grades
when as is well known the steam is always shut off.

page_text: when the sediment and other matter can readily escape through the
T shaped opening 7 passing out through the centre of the valve plug.
Having thus fully described the said Invention as communicated to
me by my foreign correspondent, and the manner of performing the same,
I wish it understood that I claim,―
First. The hollow or tubular bolt B having orifices a, a, the metallic
point C having a coniform discharge orifice C and spindle or needle D
having a tapering point d, the whole being so combined and arranged,
that the valve spindle not only regulates the flow of the lubricant by its
projecting point, but also serves to keep the discharge orifice c open as
herein described.
Second. The chamber or cup A. and the hollow or tubular bolt B,
each constructed as shewn, and cast in one piece or separately in com-
bination with the spindle D, the whole being arranged to operate as
herein described, and for the purposes specified.
Third. In combination with the chamber A. and hollow bolt B the
supply cock consisting of the cup F and tube F¹, supply channels f,f,
air passages g, g, and the valve plug H, the whole being constructed and
arranged to operate as herein described.
Fourth. The sediment cock consisting of the tube having a channel
k with a flaring mouth or valve seat, and the valve plug L having a cone
shaped point L, and the central T shaped channel 7, the whole being
combined and arranged to operate as herein described.
Fifth. The adjustable steadying plate E¹, socket bearing E, and set
screw e, when the same are combined and arranged to operate as herein
described.
In witness whereof, I, the said George Haseltine, have hereunto
set my hand and seal, this Seventh day of October, in the
year of our Lord One thousand eight hundred and seventy-three.
Witness,
WM ROBT. LAKE.
GEORGE HASELTINE. (L.S.)