Improvements in Sight-feed Lubricators.
Year: 1889

page_text: Date of Application, 16th Apr., 1889
Complete Specification Left, 16th Jan., 1890-Accepted, 22nd Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Sight-feed Lubricators.
I, ADAM DOBSON of 87 St. Mary's Terrace in the City of Belfast and County of
Antrim in Ireland Engineer do hereby declare the nature of this invention to be as
follows:-
My invention relates to the lubricating of the cylinders of steam engines or of
the steam pipes.connecting boilers with engines and to the maintaining of an inter-
mittent and regular supply of oil or lubricant to large bearings while in action or
motion and the object of my invention is to relieve the glass of the Sight-feed
Lubricator from pressure and to permit of the adjustment of the feed into vacuum or
upon bearings.
For this purpose I employ a cock with a revolving plug or stopper having a well
or cavity which at every revolution receives a charge of oil or lubricant from the
cistern containing it through the water in the glass tube and discharges the supply
into the cylinder or steam pipe or upon the bearing.
When feeding against pressure I connect the cock with an open pipe rising about
the height of the supply cistern in order to relieve it from any steam or vapour but
I may dispense with such pipe where there is no pressure or when feeding into a
vacuum.
I regulate the quantity of oil or lubricant to be given by means of a valve, the
glass tube showing the quantity which passes through.
The plug or stopper is turned in the cock by the aid of a worm and wheel or of a
ratchet wheel, and catch and any number of feeders can be supplied from the same
cistern.
11: ELL
A 1000
HYNDMAN & DICKSON,
6, Waring Street, Belfast, Agents for Applicant..
COMPLETE SPECIFICATION.
Improvements in Sight-feed Lubricators.
I, ADAM DOBSON late of 87 Saint Mary's Terrace but now of 44 Clifton Park
Avenue in the City of Belfast and County of Antrim in Ireland 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:
My invention relates to the lubricating of the cylinders of steam engines or of the
steam pipes connecting boilers with engines and to the maintaining of an intermittent
and regular supply of oil or other lubricant to large bearings while in action or
motion and the object of my invention is to relieve the glass of the Sight-feed
Lubricator. from pressure and to permit of the adjustment of the feed into vacuum as
in the condensing cylinders of steam engines and also into other cylinders, or steam
pipes or upon bearings.
For this purpose I employ a cock or valve with a revolving plug or stopper, having
a well or cavity which at every revolution receives a charge of oil or other lubricant
from the cistern containing it through the water in the glass sight tube and discharges
the supply into the cylinder or steam-pipe or upon the bearing.
When feeding against pressure I connect the cock or valve with an open air pipe
rising to about the height of the supply cistern in order to relieve it from any.steam

page_text: or vapour but I may dispense with such pipe where there is no pressure or when
feeding into a vacuum.
'
I regulate the quantity of oil or other lubricant to be given by means of a valve
the glass-sight tube showing the quantity which passes through at each revolution of
the plug or stopper.
The plug or stopper is turned in the cock or valve by the aid of a worm and wheel
or of a ratchet wheel and catch, and any number of feeders can be supplied from the
same cistern which may be placed in any convenient part of the engine room high
enough to provide the pressure necessary for supplying the feeders.
And in order that my said invention may be more fully understood I shall now
proceed to refer to the drawings on the sheet hereunto annexed, the same letters of
reference being used throughout all the figures to indicate the same or corresponding
parts of my apparatus.
Fig. I., is a side elevation of my Sight-feed Lubricator and its attachments shewing
the cock or valve and the feed pipe for conveying the oil or other lubricant from the
cistern to it, the valve for regulating the supply, the glass sight tube, the open air
pipe, the steam pipe to the cylinder and the discharge pipe from the cock or valve
into the cylinder or steam pipe: also the ratchet wheel, lever, pawl and spring and
the rod connecting same with the engine.
Fig. II., is an end elevation of the same apparatus shewing the revolving plug or
stopper, the ratchet wheel, lever and pawl, the open air pipe and the steam pipe to
the cylinder.
Fig. III., is a vertical cross section of the cock or valve with the revolving plug
or stopper and the discharge pipe from the valve into the cylinder or steam pipe :
and
Fig. IV., is a vertical transverse section of the same parts as are shown in
Figure 111.
a is the feed pipe conveying the supply from an oil cistern and furnished with a
valve b to regulate the quantity supplied; c is the glass sight tube; d is a tube for con-
veying the oil or other lubricant from the head of the glass-sight tube, c, to the open
air pipe, d¹ e is the pipe for discharging the oil or other lubricant from the valve, f,
into the cylinder or steam pipe, g: h is the ratchet wheel; i is the lever which actuates
the ratchet wheel, h, by means of the pawl, k, and the spring, '; and ³ is the rod con-
necting the lever, i, with the engine for the purpose of actuating the plug or stopper, l,
through the ratchet wheel, h; m is the well or cavity which at every revolution of
the plug or stopper, I, receives a charge of oil or other lubricant and empties the
charge into the cylinder or steam pipe or upon the bearing; n is the passage from
the well or cavity, m, to the open air pipe, d', for the escape of steam or vapour when
feeding against pressure and o is the passage in the discharge pipe, e, for conveying
the oil or other lubricant from the valve f, into the cylinder or steam pipe 9 or upon
the bearings as the case may be.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I hereby declare that what
I claim is
1. The use, in steam engines and steam pipes, of a cock or valve arranged with a
revolving plug or stopper having a well or cavity therein and a glass sight tube
connected therewith constructed and employed substantially in the manner and
for the purposes herein before described and shewn in the drawings hereunto
annexed.
2. The use, in steam engines and steam pipes, of a cock or valve arranged with a
revolving plug or stopper having a well or cavity therein and a glass sight tube and
open air tube connected therewith constructed and employed substantially in the
manner and for the purposes herein before described and shewn in the drawings
hereunto annexed, and

page_text: 3. The combination and arrangement of parts constituting my improved automatic
Sight-feed Lubricator constructed, applied and employed substantially in the manner
and for the purposes hereinbefore described and illustrated by the several figures on
the sheet of drawings hereunto annexed.
Dated this 15th day of January 1890.
HYNDMAN & DICKSON,
6, Waring Street, Belfast, Agents for Applicant.