An Improved Valve for Sight Feed Lubricators.
Year: 1891

page_text: Date of Application, 21st Dec., 1891
Complete Specification Left, 18th May, 1892-Accepted, 24th Sept., 1892
PROVISIONAL SPECIFICATION.
An Improved Valve for Sight Feed Lubricators.
JOHN UNSWORTH Colliery Engineman No. 29 Hill Street Waterloo, near
Ashton-under-Lyne JAMES FLETCHER Mechanic No. 212 Oldham Road Lime-
hurst near Ashton-under-Lyne do hereby declare the nature of this invention to
be as follows:-
The first part of our improvement consists of making a valve: to be of metal
with steel spring and to be selfacting: The valve and spindle are combined: the
steam to act under the valve: which is kept in its place by a guard: extending
from the glan to top of spindle: the spring is placed between top of guard and a
milled nut or screw to regulate strength of spring: thus when the pressure is put
on it forces the valve up and allows the oil to flow through and when steam is
shut off the spring closes the valve and stops the oil: There is also a milled nut or
screw over the spindle to regulate the lift of valve.
Sight lubricators at present have an ordinary valve which is dependant on the
person who attends to the machinary to be opened and shut: many times forgot
both at starting and stopping in the first instance causing friction the second waste
of oil. The valve made to our improvement is valuable for engines which start
and stop frequently giving instant lubrication when starting and stops instantly
when steam is shut off: thus saving the trouble of opening and closing the valve as
otherwise would have to be done: and in many cases saveing twenty or thirty
per cent. of oil.
Dated this Ninateenth day of December 1891
JOHN UNSWORTH.
JAMES FLETCHER.
COMPLETE SPECIFICATION.
An Improved Valve for Sight Feed Lubricators.
JOHN UNSWORTH Colliery Engine Winder No. 29 Hill Street Waterloo near
Ashton-under-Lyne JAMES FLETCHER Mechanic No. 212 Oldham Road Lime-
hurst near Ashton-under-Lyne 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:—
The valve made to our improvement has a guard (E) extending from top of
gland to top of spindle (A) by which the spindle (A) is kept in its place; there is
a thread on the spindle (A) just over the gland on which is placed a milled nut (C)
which is to regulate the strength of spring (B). The spring (B) being placed
between the milled nut (C) and underneath the top part of guard (E) the
spindle (A) working through it; thus when steam is put on it raises the valve and
spindle (A) which are combined and allows the oil to flow through; when steam is
Attached to
shut off the spring (B) forces the valve (A) down and stops the oil.
the guard (E) on top is a screw (D) which regulates the lift of valve (A) and
gives the speed of oil required.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is;
.
combined bar
urine B

page_text: 2nd. The milled nut. (C) which regulates the strength of spring (B).
3rd. The guard (E) on which is placed the screw (D) which regulates the speed
of oil and keeps the spindle (A') and spring (B) in posittion.
Dated this 17th day of May 1892.
JOHN UNSWORTH.
JAMES FLETCHER.