Year: 1886

page_text: I HENRY HARRIS LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 sight-feed lubricators and comprises the improvements
hereinafter, described.
In the accompanying drawing,
Figure 1 is a vertical section through the sight-feed glasses.
Figure 2 is a vertical section on a plane at right angles thereto.
Figure 3 is a transverse section through the auxiliary feed cup.
The same letters are employed in all the figures to indicate identical parts.
A is the condensing chamber, and B the oil chamber, the water of condensation
being delivered through the pipe A¹ and expelling the oil through the ducts C, and
discharging it drop by drop from the nozzle D; (which may be controlled by
valves,) into the sight tubes E. These tubes are transparent and filled with water,
through which the oil rises drop by drop, visibly. The oil thence passes through
the passages of the stop cocks F and thence flows to the parts to be lubricated
through the pipes G.
Two sight-feed tubes are shown but more may be employed if desired. These
parts being of ordinary construction, need no special description further than this,
that in this class of lubricators it has been hitherto deemed necessary to introduce
a secondary jet of live steam into the sight-feed when it delivers the oil into the
feed pipe G. In the improved lubricator the upper ends of the sight feed tubes are
supported by the steam chamber A, but by a solid arm, instead of the usual
steam pipe.
The stop-cocks F control the feed of oil. They are alike, so I will only describe
one of thein. The body of the cock is tapering and fills the outlet from the sight
feed tube. It is hollow and contains a chamber which may be filled with oil from
the cup F, (which forms the handle to the stop cock) by means of the duct Fo
controlled by the valve F²,

page_text: In this stop-cock there are two ports, one, F³, through which oil rising from the
sight feed tube through the tube F5 is discharged, and the other, F, through which
oil entering the chamber through the auxiliary oil cup F¹ may be discharged into
the pipe G. This part of the apparatus is intended for supplying the oil, either by
the entering water, through the sight feed tube as shown on the right hand side of
Figure 1; or, in case the glass of the sight feed should be broken, by the auxiliary
oil cup F as shown on the left hand side of Figure 1. The stop cock may be
turned so as to entirely shut off oil from the tube G, or so that the part F³ registers
with the opening into the tube G, to allow the oil to flow out of the sight feed; or
to shut off the sight feed and cause the hole F*, to register with the opening into
the tube Gin which position oil poured into the cup F will be fed into the tube G,
when the valve F' is lifted from its seat.
The quantities of oil and water in the chamber B are shown in the usual manner
by means of the sight-gauge H H³ H². The oil chamber is filled by means of the
cup I, into which the oil may be poured when the cap I¹ is taken off, the air from
the chamber escaping through the tube I", the upper end of which is above the top
of the cup I, and is protected by the cap I, when in place.
The oil and water can be drained from the chamber B, and the entrance of water
also controlled by the double valve placed in. the bottom of the oil chamber. The
outer part of the valve K is tapped into the bottom, and its end works in con-
nection with a valve-seat in the lower end of the pipe A¹, so that by turning the
valve water may be admitted to or excluded from the oil chamber.
The interior valve L turns in a threaded tube in the exterior valve, and has an
internal tube L2 which opens at one side, so that the end of the stem bearing
against its seat may either close the exit from chamber B or open the same so that
the fluid contents of the chamber may escape through the duct* L¹.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed as communicated to.
me by my foreign Correspondents I declare that what I claim is;
First. In combination with the sight-feed of a lubricator, the stop-cock F, formed
with an oil-chamber in the barrel, and having a cup F and valve F in the handle,
and also ports F³ and F for admitting the passage of oil either from the sight feed
tube or from the chamber in the barrel of the stop cock, the arrangeinent being
such that, by turning the stop cock, oil may be either entirely cut off or fed from
the sight feed-tube, or the internal chamber of the stop cock, independently,
substantially as set forth.
Second. In combination with the condensing and oil chamber of a lubricator, a
series of sight feed-tubes connecting only with the oil-chamber B, at one end and
with the feed pipe G at the other, substantially as set forth.
Third. In combination with the oil-chamber B and sight gauge H H¹ H², the
cup I, cap I¹, recessed to receive the air tube, and the air tube I extending from
the oil chamber and terminating within the cap and above the plane of the upper
edge of the cup, substantially as set forth.