Year: 1887

page_text: Date of Application, 11th Aug., 1887
Complete Left, 10th May, 1888
Complete Accepted, 15th June, 1888,"
I, JULIUS BRUUN, of Copenhagen, in the Kingdom of Denmark, Mechanical
Engineer, do hereby declare the nature of this invention, to be as follows :-
The improved lubricator is designed for the lubrication of cylinders piston rods
and other parts of machines, and differs from those in use in that it is capable of
acting continuously and independently of the friction of the parts.
..
Upon a suitable frame is arranged a reservoir of lubricating material. The frame
carries a shaft journalled therein, which carries a ratchet or other wheel operated by
a pawl attached to a lever, or by a belt or other device driven by the machine so that
the shaft is set in slow rotation. The opposite end of the shaft carries a cylinder the
axis of which is at right angles to that of the shaft. A side bearing surface on this
.cylinder in which is the inlet port bears upon a surface or plane on the frame
supporting the shaft, and is held in contact therewith by spring pressure. The inlet
port of the cylinder therefore describes a circle over said frame surface during the
revolution of the shaft. In said surface in the line of said circle is the orifice of the
pipe from the reservoir; also, along the greater part of said circle, a channel
communicating by a pipe with the respective part to be lubricated. The piston of
the cylinder terminates in a cross head from which two rods extend parallel with the
cylinder, upon the opposite end of said rods slides another cross head connecting
them; upon each cross head is arranged a block, guided upon a stationary annular
cam surface, extending around the path of the cylinder. The cross heads are held at
maximum distance apart by springs. On the revolution of the shaft and of the
cylinder, the piston of the latter is operated by the cam ring and springs and the oil
is transferred in a regular manner to the part to be lubricated.
The cylinder may be replaced by two or more cylinders acting alternately, the
general construction being the same.
:

page_text: same is to be performed to be particularly described and ascertained in and by the
following statement :-
The improved lubricator is designed for the lubrication of cylinders, piston rods and
other parts of machines and differs from those in use in that it is capable of acting
automatically and continuously and independently of the friction of the parts.
Reference being made to the accompanying drawings
Fig. 1 is a front elevation.
Fig. 2 a longitudinal section on line A B Fig. 1.
Fig. 3 a view of the face of the stationary portion hereinafter described.
Fig. 4 is a section on line C D Fig. 1.
Figs. 5, 6 and 7 illustrate a modified form of the apparatus.
Upon a suitable frame is arranged a reservoir c for receiving the lubricating
material which may be placed therein at any time. The frame carries a shaft r
journalled therein and this shaft is provided with a ratchet or other wheel u in
which gears a pawl f¹ attached to a lever for a strap and pulley or any other
suitable gear driven by the machine whereby the shaft r may be slowly revolved.
The opposite end of the shaft carries a cylinder s, the axis of which is at right
angles to that of the shaft, the side of the cylinder next the frame & is formed as a
circular plane surface bearing y' and is held against the similar plane surface y³ on
the frame by the pressure of springs such as z z¹ fastened on the end of the shaft r
and supported thereon by a nnt z tapped to screw upon the end of the shaft. The
inlet port of the cylinder s debouches in the plane y¹ and therefore as the shaft
and cylinder revolve the said port describes a circle upon the plane surface y³ of
the frame x. The outlet of the channel 3 debouches in this circle, said channel **
communicating with the reservoir c aforesaid. The surface is channelled at v for
a certain arc of the circle described by the port o' and this channel is in
communication with the channel leading to the part or parts desired to be
lubricated. In the cylinders slides the piston or plunger a passing through a stuffing
box in the usual manner. The piston rod or plunger carries a cross head t³ and at
the other end of the cylinder is a similar cross-head t* fixed to and guided by a pin t
sliding in a pit or recess formed in the end of the cylinder s. The cross heads t
are connected by the rods t¹ fixed to one of the cross heads and sliding in the other
the cross head t³ carries a block 62 and the cross head t carries a similar block 61
sliding upon the inner cam surface of the ring g fastened to the frame. The blocks
are held against the ring by springs h preferably surrounding the rods t¹ and bearing
in the cross heads.

page_text: The shape of the cam ring may be seen in Fig. 1. It gradually decreases in
radius from the base to the head of the nose p the latter being situated to correspond
with the allignment of the ports v² ².
The lubricator operates as follows, the cylinders being gradually rotated with the
shaft the piston is gradually thrust into the cylinder until the block b¹
g
passes over
the nose p the springs h then thrust out the piston and oil is drawn into the cylinder
through the ports in allignment, as the cylinder continues to rotate the piston is
gradually compressed and the oil is forced into the channel * and thence to the
outlet until the cylinder is nearly empty when it is again filled as aforesaid.
I do not confine myself to one cylinder only, but may use two cylinders and
modify the parts accordingly as shown in Figs. 5 to 7. Here two cylinders are
arranged in the same axial line and their plungers are connected together by a rod /
joining their cross heads.
The cam ring is also modified in shape and consists practically of two semicircles
one I of slightly larger diameter than the other g¹. The inlet is connected with
an arc shaped channel and the channel is shortened accordingly.
In this modification the one piston draws in oil into its cylinder while the other
forces into the outlet the oil which had already being drawn into its cylinder
during the previous half revolution.
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,
In lubricators
1. The combination with a rotary block or holder having a cylinder or cylinders
axially arranged perpendicular to the axis of rotation of said holder of a plunger or
plungers in said cylinder or cylinders and a cam ring g adapted to operate the same
for the purpose set forth.
2. The combination of a frame a having face y³ and ports and channels as set
forth in said face, a shaft r journalled in said frame, a cylinder or cylinders on said
shaft, face y' thereon, with port or ports therein as set forth, pistons in said cylinders
and cam ring attached to said frame and operating said pistons substantially as and
for the purpose set forth.