Lubricating Metallic and other Packing for Valve-spindles or Rods, Piston-rods, and other Spindles and Rods.
Year: 1889

page_text: Date of Application, 10th Dec., 1889
Complete Specification Left, 10th Sept., 1890-Accepted, 15th Nov., 1890
PROVISIONAL SPECIFICATION.
Lubricating Metallic and other Packing for Valve-spindles or Rods,
Piston-rods, and other Spindles and Rods.
WILLIAM FRANK PETTIGREW 44 Guildford Road, South Lambeth, S.W. Civil
Civil
Engineer, and ARTHUR STOWEY BAILEY 28 Carmalt Gardens Putney S.W.,
Engineer, do hereby declare the nature of this invention to be as follows:-
By means of a lubricator we pass oil to parts of metallic or other packing where
at present none is admitted, thus preventing blowing & preserving the packing.
This is done by drilling a small hole in the gland wherein a union is screwed & a
connection made between the lubricator & the packing, several small holes are also
drilled around the brass bush & connected by channels with one-another on the top
surface.
The oil from the lubricator passes through a pipe into the gland & drops direct onto
the brass bush through the small holes onto the valve spindles.
The lubricator consists of a brass or other metal vessel in the top of which is screwed
a cap with a tempered steel or other metal spindle attached & entering a tempered
steel or other metal pipe leading to the outlet for lubricant & inlet for steam.
The lubricator is worked by displacement & the amount of lubricant to be supplied
to working parts is controlled by the difference in diameter of the tempered steel
or other metal spindle, & the tempered steel or other metal pipe into which it
enters.
To fill the lubricator with steam on, a nock is provided, & by means of a hole drilled
at an angle, & corresponding with one drilled in the bottom of the brass or other
metal vessel, the water of condensation can be drawn off at will. Also to fill the
lubricator two slots are provided in the top cap, which after giving a few turns, is
raised sufficiently to allow the oil to be passed down one slot, whilst the air is expelled
through the second, this can be done by giving it a few more turns.
The action of the lubricator is, that the steam enters between the tempered steel or
other metal pipe & the tempered steel or other metal spindle, condenses, & displaces
the oil which is led away through the same passages as by which the steam enters.
Dated this 30th day of January 1890.
AD
W. F. PETTIGREW.
A. S. BAILEY.
COMPLETE SPECIFICATION.
Lubricating Metallic and other Packing for Valve-spindles or Rods,
Piston-rods, and other Spindles and Rods.
WILLIAM FRANK PETTIGREW & ARTHUR STOWEY BAILEY, Civil Engineers,
44 Guildford Road Clapham S.W. 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 consists of an improved lubricator of the displacement class together
with the means of lubricating all surfaces under the action of steam or other pressure
in which condensation takes place or the like of, the said means of lubrication
particularly referring to metallic and other packings or the like of such as piston and
valve spindle glands packing of steam and other engines.
Difficulty is experienced in regard to the means of supplying a lubricant regularly
and satisfactorily to the various gland packings of steam and other engines, and it is
to overcome this and other difficulties that our improved lubricator and means of

page_text: lubrication have been designed or which two sheets or drawings accompanу п
Specification.
Referring to the drawings,
Fig. 1 is a section of our improved lubricator showing it closed to steam and at the
same time open to draw off water of condensation.
Fig. 2 is an elevation of Fig. 1.
Fig. 3 is a section through a valve or piston rod stuffing box and gland, showing
the course of the lubricant from our improved lubricator, and the means of
introducing the lubricant onto that portion of the rod or the like of immediately inside
the stuffing box H.
Fig. 4 is an elevation of Fig. 3.
Fig. 5 is a section on line X. Y. showing in section the course of the lubricant
from our improved lubricator, in section & those parts of the holes plugged up after
drilling to give the necessary passage for lubricant.
Our improved lubricator will be seen to consist essentially of three parts; the body A
or A¹ into which is screwed a plug or cap B containing the spindle E & which said
plug or cap is screwed into the body A at the neck o forming a seating at a. Into
the body A is further screwed a pillar C, (A for this purpose being hexagonal at m &
Chas a thread n for securing into body A) containing a taper plug or cock D and
a projection in the form of a tube rises into the body A of the lubricator from the
pillar C.
The pillar C is screwed at k for attachment to a supporting bracket as well as
to permit of connecting it to the nipple p, inserted in the box J and communication
is made between the body of lubricator A containing the lubricant and that part to
be lubricated by turning the taper plug or cock D through an angle of 90° or there-
about to the right or left.
The hole in plug D is drilled to communicate with the pole g in pillar C and
is used for drawing off the water of condensation formed in the body A of
lubricator.
The spindle E is screwed into the cap or plug B & may be of hardened steel or
other metal, it is turned slightly smaller in diar. than the hole f in tube e of
pillar C, & a small hole d is drilled through the axis of spindle E to meet
hole c.
The means of lubrication is set forth in Figs. 3, 4 & 5, where it is shown
applied to metallic packing. The box J forms part of the metallic packing &
is secured to the steam chest F¹ by the studs K and nuts L, thus making a
joint at w. Into the box J we screw a nipple p, of brass or other metal
& to which is attached one end of the pipe a (by a union nut p¹) leading & com-
municating with our improved lubricator. A hole q is drilled in the nipple p and
box J and communicates with similar holes and to forming a passage for the
lubricant onto the rod I and on that portion of it immediately inside the box J, a
slotted hole for this purpose being formed in the collar M. Portions of holes r
and t are plugged up as shown at s and u.
Having now stated the main features of our improved lubricator and the means of
lubricating we will now proceed to describe it in operation.
The lubricator being connected to the nipple p on box J by means of a copper or
other pipe provided with union nuts and the body or interior A of lubricator being
filled with lubricant either by screwing out or only partially, so as to bring either one
of the two grooves 6 and 6 formed in the plug or cap B high enough to allow of
the insertion of an oil feeder spout. Having filled up and turned the taper plug or
cock D so as to close communication between i and g whilst communication is made
between hole in plug D and hole f, formed in pillar C; then steam from the steam
chest F¹ passing into the stuffing box H passes through the holes t, r, q, & so through
the pipe into the hole or tube f in pillar C and may either pass around the
spindle E as well as through the hole d and out at c,- into the body. A containing the
-lubricant where it comes in contact with the comparatively cool lubricant together with the
cooling surface offered by the shell of A or A' depending upon whether the body A

page_text: is desired to be elliptical or cylindrical. The steam condenses & the water formed
falls to the bottom of A (from whence it, is drawn off through g & i) whilst at
the same time it displaces an equal amount of lubricant & this passing through the
hole e in tube f(from the fact of the spindle E being of a less diar. than hole f
or a spiral groove is sometimes formed on spindle E to facilitate the flow of lubricant)
passes through the tube & nipple p into the passages 7, r, from the latter of
which it drops onto the piston or other rod I which having a reciprocating motion and
aided by the steam having a tendency to find an outlet through the stuffing box H,
the lubricant is carried with the rod & lubricates both the rod 1 and the packing
rings L which is the object we desired to obtain in respect of our means of lubricating
metallic and other packing.
It will be seen that we can somewhat modify the construction of our improved
lubricator and the arrangement of lubricating metallic and other packings without
departing from the nature of our improvements.
Having now particularly described and ascertained the nature of our said improve-
ments and in what manner the same is to be performed we declare that what
we claim is
First. A lubricator of the displacement class having a fixed spindle E fitted into
cap B.
Secondly. The two grooves b and 6' in cap B permitting of the lubricator being
filled without withdrawing the cap B & spindle E from the body A.
Thirdly. The means of drawing off the water of condensation at any time by means
of the hole g in pillar C communicating with the hole in the taper plug D..
Fourthly. The parts of the lubricator being renewable the cost of production and
renewing is decreased.
Fifthly. Simplicity of construction.
Sixthly. The means of introducing a lubricant by passages or channels onto the
piston, valve spindle or other rods working in a steam tight gland.
Seventhly. The prevention of seizing and abrasion taking place between the packing
and the rod working in the said packing, a film of lubricant being constantly interposed
between the rod and the packing.
Eighthly. Friction decreased to a minimum.
Dated this 10th day of September 1890.
DRAMAT ADRITY
W. F. PETTIGREW.
A. S. BAILEY.