improvements in Lubricators.
Year: 1894

page_text: Date of Application, 9th July, 1894
Complete Specification Left, 4th Dec., 1894-Accepted, 5th Jan., 1895
improvements in Lubricators.
I, ALFRED MILLS, of 35 Lucerne Cottages, Mill Lane, Bury St. Edmunds, in
the County of Suffolk, Iron Moulder, do hereby declare the nature of this invention
to be as follows:-
The lubricant is contained in a cylindrical vessel and is gradually forced out
through a small hole or pipe at one end by a piston actuated by a coiled spring.
This end of the cylinder can be screwed off for filling. The piston has a rod
fixed to it passing out through the other end of the cylinder. This piston rod has
a feather or feathers upon it working in corresponding grooves in the end of the
cylinder.
When it is desired to fill the cylinder the piston rod is pulled out and given
a partial turn so that the ends of the feathers come against the end of the cylinder
holding the piston stationary in spite of the spring being compressed. When the
lubricator has been filled and it is desired to start it the piston rod is turned back
again until the ends of the feathers are opposite the grooves.
The spring is made conical so that it is compressed into a short length and is
contained in a recess in the face of the piston and a short cylindrical extension
of the domed end of the cylinder. The sides of the piston are turned over 80
as to form an annular cup in which a leather packing is placed so forming a
tight joint.
Dated this 9th day of July 1894,
ALFRED MILLS.
Improvements in Lubricators.
I, ALFRED MILLS, of 35 Lucerne Cottages, Mill Lane, Bury St. Edmunds in
the County of Suffolk, Iron Moulder, 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 lubricant is contained in a cylindrical vessel and is gradually forced out
through a small hole or pipe at one end by a piston actuated by a coiled spring.
This end of the cylinder can be screwed off for filling. The piston has a rod
fixed to it passing out through the other end of the cylinder. This piston rod has
a feather or feathers upon it working in corresponding grooves in the end of the
cylinder.
When it is desired to fill the cylinder the piston rod is pulled out and given a
partial turn so that the ends of the feathers come against the end of the cylinder.
holding the piston stationary in spite of the spring being compresse.l. When the
lubricator has been filled and it is desired to start it the piston rod is turned back
again until the ends of the feathers are opposite the grooves.
The spring is made conical so that it is compressed into a short length and is
contained in a recess in the face of the piston and a short cylindrical extension
D

page_text: of the domed end of the cylinder. The sides of the piston are turned over so
as to form an annular cup in which a leather packing is placed so forming a
tight joint.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section of a lubricator made according to this invention
and Figure 2 is a transverse section on the line XX. Figure 1.
a is the cylinder, 6 the removable end, c the piston, d the piston rod, e e the
feathers upon it, the spring and g the cup leather.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
-
1. The feathers on the piston rod for retaining the piston at the end of the cylinder
substantially as described.
2. The cup leather on the piston substantially as described.
3. The combination of the recess at the end of the cylinder with the conical
spring substantially as described.
4. Lubricators substantially as described and shown in the drawings.
Dated th: 91 3
A. MILLS..