Year: 1886

page_text: Date of Application, 24th Dec., 1886
Complete Left, 23rd Sept., 1887
Complete Accepted, 23rd Dec., 1887
WILLIAM FRASER, Engineer, 20 Endymion Terrace Finsbury Park Hornsey,
London, N. do hereby declare the nature of this invention to be as follows:-
The Lubricator is so simple & effective that the cost of construction is less than
any other.
There is no glass in connection with, the sight feed to break, as the oil drops direct
from the reservoir into the feed tube direct.
There is a space of about "an inch between the feed tube F. & the small feed
cock J. The latter can be adjusted to one or 100 drops per minute.
The small reservoir A. as shewn on drawing can be dispensed with (or made to any
size) and the oil can be drawn direct from a reservoir placed at any convenient
distance.
The Lubricator can be attached to any part & worked direct from the crank shaft
or otherwise by small strap. The driving pin. B. on the Disc is adjustable & can be
made to work at dead centre or the full throw of the Disc. The Disc C. is slotted
two thirds down the face with sufficient taper
a
The driving pin B. being made taper at the end & with a washer at each side of
the connecting rod which admits the pin B. right through tube D. same being
little longer than the width of the connecting rod, then by the action of the outside
nut C & B. is made thoroughly fast. The two tubes E. & F. is fixed on to the back
of G. with pin H. with a small hole bored up the centre of it & with the hole 1. bored
crosswise & being screwed at the point & with a taper head enables the back part to
be taken off and examined at will. The hole K up through the pin gives the oil free
access too & from the piston L. & the valves M & N. direct.
The principal features of my invention are viz.
I That the Lubricator can be thoroughly relied & depended upon to do the work it
has been designed for.
II The driving pully can be made to any size & thereby reduce or increase the
action of the pump as required regulating the oil supply accordingly.
III The driving pin being also adjustable the stroke of the pump can be reduced or
increased at will as required.

page_text: IV Altho' the driving pully & driving pin are both adjustable it is not absolutely
necessary to alter either, when any alteration is made on the oil supply. That is if
the plunger of the pump has sufficient throw & in the event of the oil supply being
reduced from say sixty to ten drops per minute then the pump would inject the oil as
it receives it & pump air in the intervals.
V The valves being attached to the bottom end of the tubes same being screwed
into the cross connection the latter being attached by a pin, which serves the double
purpose of attaching the tubes valves & cross connection to the pump & is also the
only means of access & egress from the oil too & from the pump.
VI The Lubricator can be fixed almost any where & driven or worked from any
revolving shaft the power required is reduced to a mere minimum on account of the
simplicity of construction, few working parts & etc.
VII The oil reservoir can be made to any size & placed at any given distance from
the Lubricator & no glass being required for the sight feed, lessens the likelyhood of
breakages & etc. by accident.
A... L
130
COMPLETE SPECIFICATION.
T.
Improvements in Lubricators.
I, WILLIAM FRASER of Oxford Road, London, in the County of Middlesex,
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
following statement:-
1.
and by the
The lubricator consists essentially of a lubricant store chamber, or cylinder,
mounted at the summit of a force pump framing, and with the lower end of the
plunger cylinder, in connection with a feed tube, whose top open end, is in close
proximity to, the nozzle of a stop cock, depending from the underside of the lubricant
store chamber as aforesaid.
The bottom of the feed tube, has a valve, with a passage leading from the underside
thereof, to the interior of the pump cylinder, while a second passage directed from one
of the former, and in connection with the pump, leads to a delivery pipe, whose
lower end, is provided with a valve.
! :
i
.
Motion is communicated to the plunger, by a connecting rod or link, jointed and
connected at its upper end, to a crank plate, carried on the end of a shaft or spindle;
which is driven by pulley, or other gear.
-..
[1

page_text: The crank plate has a slot within it, wherein the crank pin admits of being adjusted,
so as to change its position with respect to the centre of motion, and thereby give
greater or less stroke to the plunger, which on its reciprocation, alternately draws and
forces both lubricant and air, as hereinafter described.
Figure 1 represents partly in vertical section, and partly in elevation, a lubricator
constructed and arranged according to my invention.
Figure 2 is a front elevation of the same, and figure 3 is a back elevation of the
said lubricator, and with the lower part in section, so as to show the relative positions
of the valves, and their connection passages.
Figure 4 is a horizontal section on the dotted lines A B, and figure 5 is a horizontal
section taken from the top of figure 3.
The same letters of reference indicate corresponding parts in the several figures of
the drawing.
a is the oil container, or oil reservoir, provided at its bottom, and depending from
the underside thereof, a feed cock, through which oil is allowed to slowly pass
from the said container, and drop into the feed tube c, placed immediately below its
nose or nozzle end.
The bottom of the feed tube, is fitted with, or has an inwardly opening valve d, and
whose stalk dis directed upwardly, and working between guides, formed in the said
lower end. is the valve seat, against which the top side of the said valve, takes its
bearing.
Leading from the chamber on the underside of the valve, is a horizontal outward
passage which is continued transversly into a passage c³, formed up the middle of
a scrow pin c; and which said passage continues itself into the pump cylinder e³, of
"
the pump e
Working within the pump cylinder e³, and through the gland is a plunger f,
jointedly connected at its upper end, to a connecting rod g, by a joint pin 3, whose
inner end extends and works through a centrally disposed slot e³, of the pump
framing e, on the plunger's reciprocation.
The working of the inner end of the connecting or joint pin, within the centrally
disposed and vertical slot, makes the plunger reciprocate in a direct vertical line, or in
a direction parallel to its cylinder.
The upper end of the connecting rod g, is jointed and connected to a pin or neck h³,
of a crank plate h; and with the inner end of the said pin or neck, made with a
dovetail foot, which fits within a like dovetail slot, made partially across the face of
the crank plate; and by adjusting the said inner end, within the slot, the throw or
reciprocation of the plunger can be regulated.
The crank plate is carried by a horizontal shaft i, passing through bearings, made
within the upper part of the supporting framing e, and which said shaft, has mounted
upon it, suitable pulleys, for giving the necessary rotation thereto, for the working of
the plunger; and the intermittent forcing of oil and air to the bearings, of which the
former is to lubricate, while the latter is to keep them cool.
j is a delivery pipe, with an outwardly opening valve k, whose underside takes its
bearing upon a valve seat, situated at the top of the valve chamber, which leads
into the central passage c³, by a passage j.
The delivery pipe, is connected with a shaft bearing, or with two or more shaft
bearings, to which lubricant and air are to be supplied.
When the lubricator is in use, and at work, the raising of the plunger, draws oil
from the feed tube c, into the plunger cylinder e², through the valve opening of the
valve d, and from thence through the passage e, into passage co, to the plunger
cylinder, as aforesaid.
The raising of the plunger, also closes the valve, so as to prevent the escape of oil
from the delivery pipe.
The forcing home of the plunger into its cylinder, closes the valve &, and opens the
valve; so that oil is forced from under the plunger in the cylinder, back through the
passage c, and from thence, through the passage, past the valve k, to the delivery
pipe, and so on, to each reciprocation of the acting plungor.

page_text: The feed cock allows oil to drop into the feed tube at a rate of, from about 1 to
100 drops per minute.
During the interval or intervals when no oil is in the feed tube, the pump forces air
instead of lubricant, and, which said air on being forced to the bearings, is most
beneficial in keeping them cool.
1 wish it also to be observed, that my new or improved lubricator, is particularly
applicable for forcing or projecting lubricant into the cylinders of steam engines,
pumps, hydrants and other motors, while under pressure, and also for forcing, or
ejecting lubricant and other anti-corrosive substances, into steam boilers.
Having now particularly described and ascertained the nature of my said inven-
ion, and in what manner the same is to be performed, I declare that what I claim is.
First. Varying the throw of the plunger, or piston, of lubricators of the kind, as
described, by making the crank pin, or the crank plate pin h, adjustable, substantially as
herein described and set forth.
Secondly. Breaking the communication between the nozzle of the feed cock, and
the open mouth of the feed tube, by an intervening space; so that air, as well as
lubricant, can be drawn and forced, for the purpose substantially as described and
set forth.
Thirdly. Effecting the parallel working of the plunger within its cylinder, by
making the inner end of the joint pin 3, work through a centrally disposed and
vertical slot e³, made in the pump or lubricator framing e as set forth.
Fourthly.In combination with a pump lubricator, of the kind as herein described,
of the valvular parts and passages as set forth, whereby the instrument or apparatus
is made to draw and force lubricant, or both lubricant and air, substantially as
described and set forth.
Lastly. The improvements in the construction and arrangement of the parts of
pump lubricators, herein-described and set forth, whereby the said instrument, or
apparatus is made to draw and force lubricant, or both lubricant and air, substantially
as described and set forth.
Dated this Nineteenth day of Sontember 1907