Year: 1889

page_text: Date of Application, 15th Jan., 1889
Specification Accepted, 9th Mar., 1889
We AXEL AMUNDSEN, and PETER BRUFF, Engineers and OLE DEHLI, Landed
Proprietor, all of the Vulcan Works, Christiania, in the Kingdom of Norway, 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 relates to pressure-lubricating apparatus for steam engines the object
being to simplify the construction of such lubricators.
The invention consists mainly in the use of a packed piston instead of the plunger
piston mitherto employed and also in a simple stopping mechanism constructed for the
purpose.
In the accompanying drawing
Figure 1 is a vertical section through the centre of the lubricator.
Figure 2 is a front elevation, and,
Figure 3 is a top view of the lubricator.
Similar letters of reference indicate corresponding parts in all the Figures.
The body proper of the lubricator comprises two parts a and a¹; the lower part a
is open at the top and of a cylindrical shape; it has two openings at the bottom, ono
for the admission and one for the escape of the oil. The upper part a' is open and
screwed to the lower part and forms a continuation of the same and besides forming
a support for the mechanism which operates the piston in the cylinder it also serves
as a guide for a block p.
The piston consists of the piston body & proper, the packing c and the plate & which
The
is secured by a screw to the piston body and serves to hold the packing c.
packing is made either single or double in order to adapt the piston both for suction
and pressure. The piston 6 has a hole for the reception of the piston rod e the lower
end of which is turned and provided with a groove fin which the screws g fit so as
to allow the piston rod to rotate without turning the piston, the latter having only an
up and down motion along the centre line of the cylinder a. The piston rode is
provided with scrow threads corresponding with the thread of a nut h placed in the
upper part a' of the apparatus; to this nut is keyed a worm wheel i which normally
engages with a worm operated by an arrangement of ratchet mechanism l, m, n.
piston mitherto employed and also in a simple stopping mechanism const
purpose.
In the accompanying drawing
Figure 1 is a vertical section through the centre of the lubricator.
Figure 2 is a front elevation, and,
Figure 3 is a top view of the lubricator.
Similar letters of reference indicate corresponding parts in all the Figures.
The body proper of the lubricator comprises two parts a and a¹; the lower part a
is open at the top and of a cylindrical shape; it has two openings at the bottom, ono
for the admission and one for the escape of the oil. The upper part a' is open and
screwed to the lower part and forms a continuation of the same and besides forming
a support for the mechanism which operates the piston in the cylinder it also serves
as a guide for a block p.
The
The piston consists of the piston body b proper, the packing c and the plate & which
is secured by a screw to the piston body and serves to hold the packing c.
packing is made either single or double in order to adapt the piston both for suction
and pressure. The piston 6 has a hole for the reception of the piston rode the lower
end of which is turned and provided with a groove fin which the screws g fit so as
to allow the piston rod to rotate without turning the piston, the latter having only an
up and down motion along the centre line of the cylinder a. The piston rode is
provided with scrow threads corresponding with the thread of a nut placed in the
upper part a' of the apparatus; to this nut is keyed a worm wheel i which normally
engages with a worm operated by an arrangement of ratchet mechanism l, m, n.

page_text: In order to prevent the piston rod e from turning in the nut h during the rotation
of the same, a groove o is made in the piston rod e to the depth of the screw thread
and the direction of the groove is parallel to the longitudinal axis of the piston rod.
In this groove a block p is adapted to slide which block is guided in an opening made
in the upper part al of the apparatus. The block p is pressed against the piston rod
by means of a spring 7 secured by a Screw to the apparatus. The block p being
allowed to enter the vertical groove o of the piston rod and the piston being in its
highest position the piston rod will, when the worm wheel with the nut / begins to
rotate, be carried downwards and the piston will press out the oil which is under it.
In order to stop the piston automatically when it has reached its lowest position, the
thread of the piston rod is removed at the upper end of the groove o thereby
allowing the block p to slide freely on the piston rod without preventing the same
from rotating.
The use of the apparatus is as follows:-
Having transmitted the motion of the engine to the apparatus by means of the
ratchet gear l, m, n the cylindrical oil reservoir is filled. This is effected by holding
the block back and then screwing the piston rod upwards by means of a handle
whereby the piston (the outlet cock having been previously shut and the supply cock
opened) will be caused to suck the oil into the cylinder. The cocks are then turned
back again, the block is released and will be forced into the groove o as soon as the
latter comes opposite the block. The apparatus will immediately commence to work
by moving the piston downwards and pressing out the oil which, through pipes, is
conducted to the required parts of the engine.
If fat is to be used for lubricating the engine the piston is screwed up high enough
to allow the cylinder to be filled through the open upper part of the apparatus.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declaro that what we
claim is :-
(1) In a lubricating apparatus, a cylinder in which works a packed piston having
its piston rod arranged to freely rotate therein the latter being provided with screw
threads and vertical and horizontal grooves the said horizontal groove in conjunction
with a feather like block serving to put the apparatus in work and to again automatically
put it out of work.
(2) In a lubricating apparatus as described in Claim 1, a cylinder in which works
a piston 6 having its piston rod c provided with screw threads, the thread of the lower
part being divided by a groove o parallel to the axis of the piston rod in combination
with a featherlike block p in the upper part of the apparatus and moveable in a radial
direction and fitting into the groove in order to prevent the rotation of the piston
rod, the screwing downwards of the piston being automatically stopped by
means of a plain portion of the piston rod, the mechanism for carrying the
downward movement of the piston rod being arranged in the manner usual in
lubricators.
(3) The construction and arrangement of the lubricating apparatus substantially as
hereinbefore described and illustrated in the accompanying drawing.
Dated the 15th day of January 1889.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicants.