A New or Improved Lubricating Pump for Engine Cylinders and the like.
Year: 1885

page_text: COMPLETE SPECIFICATION.
A New or Improved Lubricating Pump for Engine Cylinders
and the like.
I, GUSTAV JOACHIM HAMBRUCH, Engineer, of 21 Behrenstrasse, Berlin, Kingdom
of Prussia, German Empire 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:-
In order to obviate the necessity of lubricating cylinders, slides, pistons, stuffing
boxes and the like by hand, which in consequence of inattention is liable to be
imperfectly performed, small portions of the lubricant are preferably delivered into
the steam pipe leading to the cylinder by means of a pump actuated by the driving
mechanism of the engine whereby the steam before entering the slide box or valve
box is lubricated. The pump devised for this purpose which forms the object of the
present application for Letters Patent is of very compact design, and all valves and
regulating mechanism are dispensed with. The pump consists essentially of a
conical or cylindrical pump body enclosed steain-tight in an envelope with a radial
piston which is actuated by the working of the pump whilst the pump barrel
alternately communicates with the oil-holder and with the steam-pipe.
Figures 1 and 2 of the accompanying drawing shew the mechanism of the pump
in combination with a lubricant cistern and Figures 3 to 10 shew modifications of
the pump mechanism. On the vessel A. Figures 1 and 2 with lubricant recep-
tacle A¹ there arranged for the reception of the lubricating pump the oil-tight
and conically shaped pump casing A enclosed by the cover C, which has an
inlet 2 for the introduction of the lubricant into the pump, and for the delivery of
the same to the corresponding steam pipe, another channel 3. The conical piece B
fitting in the envelope A", contains the pump barrel provided with the piston F
working radially, and which through channel I comes alternately in communication
with channels 2 and 3, according as the piece B in the envelope is alternately
turned to and fro. For this purpose a shaft E working in stuffing boxes is placed
in the lower part of the envelope C, which shaft is turned by means of a ratchet
wheel'g and the ratchet H of a lever moved backwards and forwards by the main
engine.
The pin K¹ fixed eccentrically on the crank K of the shaft E is thereby corre-
spondingly turned, and this transfers motion by means of the head F¹ to the
piston F which passes through the stuffing box J screwed into the cone B.

page_text: The stuffing box J is prolonged so as to form a radial bearing or guide for
the head F, which latter is movable in a boring of the stuffing box, as is the crank
pin K¹ in a slit of the same.
When the crank pin K¹ turns to the right (Figure 1) the under parts of J F¹ F
and B are also propelled to the right. Thereby the piston F is drawn down and
channel 1 of the pump barrel communicates with the channel 2 of the reservoir A¹
so that the lubricant can flow in from this down to the piston F. The recess 4, 5,
6, 7, in the pump envelope A" enables the portion of the stuffing box J projecting
from the cone B to turn right and left. The turning to the right of the channel 1
commences when the eccentric pin passes the horizontal position to the right
and lasts until it arrives in the horizontal position to the left.
Meanwhile channel 1 has come into communication with channel 3 and by
means of the piston F ascending when the crank pin has passed the lower vertical
position the requisite quantity of lubricant is delivered into channel 3.
When the crank pin passes the horizontal position at the left, there again results
a turning of the channel 1 to the left, and communication of the same with
channel 2 and this action is repeated at each turn of the pin K¹ whereby, each
time, lubricant is discharged from the reservoir A¹ through chaunel 3 into the
steam pipe.
A channel 10, Figure 2, connects the interior of the envelope A" with the
reservoir containing the lubricant A¹. The first is thereby permanently supplied
with lubricant, whereby a sufficient lubrication of all the parts of the pump
mechanism is secured. In the modification shown in Figures 3 to 6 the separate
portions of the apparatus are shown in various positions. Here also the piece B
has the shape of a cone the thickest end of which is directed to the cover C. For
the head F of the piston F the cone B is here radially scooped out at 8 and the
stuffing box which shuts off the piston steam-tight is affixed by means of special
screws. The bead F and the crank piece K' do not in this case exceed in their
motion the limits of the cone B.
In modifications Figures 7 and 8 the cone is replaced by an oscillating cylindrical
piece B which presses with its surface B¹ against the cylindrical wall of the
envelope A in consequence of the pressure of the spring M upon the trunnions L
of the cylinder and the channel 1 of the latter opens into the pump barrel.
Channels 2 and 3 are arranged as before.
On turning shaft E with crank K and pin K' which connects with the head of
the piston F placed radially in the stuffing box of the cylinder, channel 1 is
alternately in communication with inlet channel 2 and outlet channel 3.
Figures 9 and 10 show other modifications, in which two pins K¹ placed at an
angle of 180 degrees to each other are arranged each with a piston F and pump
barrel. The pump barrels and pistons are contained in two cones B capable of
revolving independently of each other. Shaft E is here not only supported on
cover C but also bears on the bottom of the envelope A" at E¹ Figure 10. This
envelope is enlarged correspondingly to the dimensions of the two cones B and has
moreover two inlet channels 2 and two outlet channels 3 with which the channels 1
of the two pump barrels alternately communicate. This arrangement of the
Jubricating pump secures an uninterrupted delivery of lubricant into the steam
pipe because whilst the one pump barrel is taking in lubricant, the other is
delivering lubricant into the steam pipe.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. A lubricating pump for engine cylinders and the like, composed essentially of
an envelope connected with a cistern for the lubricant, in which envelope a pump
body containing a pump barrel and piston is disposed in such a manner that on the
to and fro turning of the same, alternate communication of the pump barrel with
the container and the steam pipe together with the ascent and descent of the pistog

page_text: is produced, for the purpose of delivering lubricant into the steam pipe at every
stroke of the piston.
2. In a lubricating pump substantially as described in claim 1, either a cone B
conically fitted into the envelope A" with piston F and stuffing box J for guiding
the head F¹ Figures 1 and 2 or a conically fitted cone B in which the guide F¹
for the piston is directly contained Figures 3 to 6 or a cylinder oscillating on
trunnions L with cylindrical slide surface B¹ on the correspondingly shaped
envelope A Figures 7 and 8.
3. In lubricating pumps of the above described pattern the arrangement of
two cones B capable of independent motion and each furnished with pump barrel
and piston in such manner that the pistons are actuated to secure uninterrupted
lubrication by means of two pins K¹ set at an angle of 180 degrees.
4. For lubricating the above described lubricating pump the connecting of the
oil reservoir with the interior of the pump envelope A by a channel 10.
Dated this 10th day of December 1885,
WP. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, and
323, High Holborn, London,
Patent Agents for the Applicant.