Improvements in Lubricating Apparatus.
Year: 1899

page_text: Date of Application, 11th July, 1899
Complete Specification Left, 11th Apr., 1900-Accepted, 2nd June, 1900
[Communicated from abroad by SCHÄFFER AND BUDENBERG, of No. 8, Schonebecker-
strasse, Magdeburg-Buckau, in the Empire of Germany, Manufacturers.]
Improvements in Lubricating Apparatus.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
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This invention relates to mechanically operated lubricating apparatus of the
kind in which the oil is drawn from a reservoir by means of a piston or plunger,
and then delivered to the parts to be lubricated through one or more distributing
pipes either under pressure or not as may be desired.
According to the present invention the improved apparatus effects the lubrica-.
tion in an absolutely effective manner and without the intervention of suction"
or pressure valves which never operate satisfactorily with thick and viscid
lubricating materials such for example as "valvoline-oil" and often give rise to
the defect of steam entering the oil reservoir and to other disturbances.
The
In carrying my invention into practice the oil reservoir is fitted with a hollow
piston adapted to be simultaneously rotated and reciprocated in a cylinder attached
to the said reservoir and communicating with the same through a suction channel,
the said cylinder being provided with a number of pipes for the distribution of
the oil to the parts to be lubricated. The said piston is provided with a cam
disc or roller to which reciprocating motion is imparted while the piston is being
turned by means of a shaft and ratchet wheel or by other convenient means.
piston is provided with a suction-port and pressure or discharge port and it is
connected with the operating shaft by means of a pin. The cam disc or drum
engages with a stationary guide stud or roller in such a manner that the piston
is caused to reciprocate in the cylinder so that during the first half of the revolu-
tion, oil is drawn into the piston, while during the last half of the revolution
the oil is discharged into the distributing pipe or pipes.
The operation of the improved apparatus is as follows:
The reservoir is filled with oil and the ratchet wheel is revolved through the
intervention. of a lever from any suitably part of the engine, thereby revolving
the operating shaft which communicates a rotary motion to the piston and cam
disc. By reason of the engagement of the fixed stud or roller with the groove
of the cam the piston is reciprocated at each revolution. During the suction
period at the first half revolution, that is to say during the time the piston
moves in the direction from the cylinder into the oil reservoir, the suction port
opens into the inlet channel and thus establishes communication between the
oil reservoir and the cylinder space allowing a certain quantity of oil to enter.
During the period of discharge, or while the second half of the revolution of the
piston is taking place this latter re-enters its cylinder. At the same time the
discharge port opens into the branch connections or distributing pipes in
succession and enables the oil to pass thereto.

page_text: In the above described arrangement the oil in the lubricated surfaces is not
under pressure and for this reason the cylindrical portion situated between two
discharge openings is smaller than the width of the discharge port thus enabling
any two such discharge openings to be brought into intercommunication and
simultaneously receive lubricating material. In this manner no compression of
the oil takes place which however would occur by the sudden closing of the oil
discharge.
In some cases the piston or plunger is provided with a single face cam which
with the aid of the stud or roller effects the forward movement of the piston,
while a spring is employed to effect the return movement of the piston.
The apparatus may be modified in order to adapt it for the lubrication of sur-
faces under pressure, and the parts connected to it may either all be under a
uniform pressure or under different pressures.
To this end the cylinder is furnished with a tightly fitting piston adapted to be
acted upon by means of a spring, the tension of which may be adjusted from the
outside. The discharge port is made narrower than the distances between successive
discharge ports in the cylinder.
Therefore communication between two distributing pipes cannot take place
because the closing of any one of such discharge ports is completed before another
is opened. As the cylinder thus closes for a short period, the spring controlled
piston is forced slightly outwards against the pressure of the spring and com-
pression of the oil is thus avoided. Upon the piston now uncovering the next
discharge port the spring controlled piston returns into the cylinder and oil flows
into the lubricating pipe. If some of the oil should find its way around the
spring controlled piston in case of it becoming somewhat leaky the oil will return
through a passage into the oil reservoir.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicants.
Improvements in Lubricating Apparatus.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 mechanically operated lubricating apparatus of the
kind in which the oil is drawn from a reservoir by means of a rotary reciprocating
piston or plunger and then delivered to the parts to be lubricated through one
on more distributing pipes either under pressure or not as may be desired.
According to the present invention the improved apparatus effects the lubrica-
tion in an absolutely effective manner and without the intervention of suction
or pressure valves which seldom operate satisfactorily with thick and viscid
lubricating materials such for example as "valvoline-oil" and often give rise to
the defect of steam entering the oil reservoir and to other disturbances.
Our invention will be clearly understood by reference to the accompanying
drawings in which:
Figure 1 is a vertical section of the apparatus.
Figure 2 is a longitudinal section taken on the line x-x of Figure 1.

page_text: Figure 3 is a cross-section taken on the line y-y Figure 1.
Figure 4 shows a vertical section through the cylinder and piston of a slightly
modified arrangement for use in lubricating under pressure, or partly under
pressure and partly without pressure.
Figure 5 is a section of an arrangement having a single guide disc.
Figure 6 is a horizontal section taken on the line z z of Figure 5.
In carrying the invention into practice an oil reservoir A is fitted with a hollow
piston C and C₁ having a cam disc L and adapted to receive motion from a
shaft B and ratchet wheel S, through the intervention of a lever U with pawl T
or by other convenient means. The piston C is provided with a suction port H,
and pressure or discharge port K, and it is connected with the operating shaft B
by a pin O entering the slot L³ in its boss L³. The piston C fitted with the
disc or drum L and having a groove L' with which a stationary guide stud or
a roller D upon the bolt D₁ in the cover G engages in such a manner that the
piston is caused to reciprocate in the cylinder, so that during the first half of
the revolution oil is drawn into the piston D, while during the last half of the
revolution the oil is discharged into the distributing pipe or pipes J J¹. The
piston moves in a cylinder E communicating with the oil-reservoir A through a
suction channel M. From the cylinder E lead a number of distributing sockets J
in connection with branch pipes J' which lead to the parts being lubricated.
The operation of the improved apparatus is as follows:
The reservoir A is filled with oil, and the ratchet wheel S is revolved through
the intervention of a lever U and pawl T from any suitable part of the engine.
This causes the revolving of the operating shaft B in the stuffing box F, which
communicates a rotary motion to the piston C and cam disc L. This latter by
means of its groove L is guided by the stud D and thereby imparts to the piston
a reciprocatory motion at each revolution. Holes B¹ in the hollow shaft B allow
of the free entrance and egress of oil. During the suction period at
the first half revolution, that is to say, during the time the
piston C moves in the direction from the cylinder E into the interior of the oil
reservoir A, the suction port H opens into the inlet channel M in the cylinder E
and thus establishes communication between the oil reservoir A and the cylinder
space, thus allowing a certain quantity of oil to enter. During the period of
discharge, or while the second half of the revolution of the piston C is taking
place this latter re-enters its cylinder E. At the same time the discharge port K
opens into the branch connections or distributing pipes J J, J J' in succession
and enables the oil to pass thereinto.
In the arrangement shown in Figures 1 to 3 the oil in the lubricated surfaces
is not under pressure, and for this reason the cylindrical portion situated between
the discharge openings J J is smaller than the width of the discharge port K,
thus enabling any two such discharge openings J J to be brought into inter-
communication and simultaneously receive lubricating material. In this manner
no compression of the oil takes place which however would occur by the sudden
closing of the oil discharge.
Figures 5 and 6 show a modified form of apparatus in which the cam disc L
is formed with a single face cam L' which, with the aid of the stud or roller O,
effects only the forward movement of the piston, while a spring R is employed
to effect the return movement of the piston.
The arrangement shown in Figure 4 serves to lubricate surfaces under pressure
and the parts in connection with the various distributing tubes may either all
be under a uniform pressure or under different pressures.
To this end the cylinder E is furnished with a tightly fitting piston I adapted
to be acted upon by means of a spring N and screw W in the interior of the
stuffing box X. The discharge port K is in this case made narrower than the
distance between successive discharge ports J J in the cylinder. Therefore
communication between two distributing pipes J1 J1 cannot take place because
the closing of any one of such distributing pipes J¹ is complete directly the dis-

page_text: charge opening K communicates with the other distributing pipe J¹. As the
cylinder thus closes for a short period, the spring controlled piston I is forced
slightly outwards from the cylinder E against the pressure of the spring, and
compression of the oil is thus avoided. Upon the piston now uncovering the next
distributing pipe J J the spring controlled piston I returns into the cylinder E
and oil flows into the lubricating pipe J. If some of the oil should find its way
around the spring controlled piston I in case of it becoming somewhat leaky, the
oil will return through a passage Q into the oil reservoir A.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondents I declare that what I claim is:
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1. In lubricating devices for supplying several distributing pipes or the like,
a piston adapted to receive simultaneously a reciprocating and a rotary motion,
said piston forming a slide distributing valve for the pipes distributing the
lubricant substantially as herein before described and illustrated by the accom-
panying drawings.
เ
2. In lubricating devices for supplying several distributing pipes or the like
a piston forming a slide valve distributor, discharge ports arranged in such a
manner that each lubricating pipe or conduit is placed into communication with
the interior of said piston before the previous pipe or conduit is closed, substan-
tially as described and illustrated by the accompanying drawings.
3. In lubricating devices for supplying several distributing pipes or the like
the combination of a piston forming a slide valve distributor, discharge ports
for said lubricant, with a spring regulated piston adapted to prevent compression
of the oil, and of channels forming communication between the space behind said
spring-regulated piston and the oil reservoir substantially as described and
illustrated by the accompanying drawings.
4. A lubricating device constructed arranged and operating substantially as
hereinbefore described and illustrated by the accompanying drawings and for the
purpose specified.
Dated this 11th day of April 1900.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.