Improvements in Lubricators, Applicable for the Cylinders of Steam Engines.
Year: 1888

page_text: Date of Application, 17th Aug., 1888
Complete Specification Left, 16th May, 1889-Accepted, 6th July. 1889
PROVISIONAL SPECIFICATION.
Improvements in Lubricators, Applicable for the Cylinders of
Steam Engines.
We, ROBERT MARCHANT, and WILLIAM MARCHANT, both of Colne Road, Hudders-
field, in the County of York, Brass Founders and Finishers, do hereby declare the
nature of this invention to be as follows:-
This invention relates chiefly to that class of lubricator for steam engine cylinders
in which the lubricant is forced through suitably placed valves into the cylinder by
the action of a piston or plunger which is alternately raised and depressed.
Hitherto the piston in these lubricators has been raised by a cam or its equivalent
and depressed by the cam or by a spiral spring. Depression by means of a cam
is too slow and the use of a spiral spring is objectionable, as there is difficulty in
regulating or adjusting the pressure of it, to correspond with the pressure-in the
steam cylinder-against which it has to work and, consequently a spring greatly in
excess of what is required is generally employed.
We form the cup or chamber to receive the lubricant with one, two, or more
exit valves, placed at the bottom, through which the lubricant is ejected by a plunger
or piston acting upon it. The plunger or piston is raised intermittently by a cam
which is rotated or otherwise moved by a worm and worm wheel the worm being
moved by a lever, crank or its equivalent connected to a moving part of the engine.
The plunger slides between suitable guides so as to always move in the required
direction. The plunger or piston rod at its upper end is formed with a fork or
otherwise to receive transversely bearing against it, one or more, preferably a number
of plates or bars of steel either loosely placed in position or secured together.
Projecting lugs or pieces are fitted or cast to the cup or chamber, against which,
the ends of these plates or bars abut so that, when in position they tend to prevent
the raising of the plunger. The fork at the upper end of the piston rod may be
formed to receive two or more sets of plates at different levels, with the object of
preventing the upper plates being bent to as great a curve as if all were placed
directly above and touching each other. One set of plates may be placed across
the lubricator at right angles to another. A nut is placed at the bottom of the fork
to regulate its height according to the number of plates in use.
The plunger is raised as stated by means of a cam and the steel plates or bars
are forced upwards in the centre, taking a curved shape and forming a laminated
spring, force the plunger down with the required amount of force as soon as it is
released by the raising mechanism. The required pressure is easily adjusted by the
number of the plates or bars used. A screw placed on the side of the cup or
chamber provides or covers an opening for inserting or withdrawing the bars or
plates. A suitable top or cover is screwed, bolted or otherwise attached to the cup
or chamber to enclose the lubricant and internal parts.
Dated this 13th day of August 1800.
1000.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Lubricators, Applicable for the Cylinders of
Steam Engines.
We, ROBERT MARCHANT, and WILLIAM MARCHANT, both of Colne Road, Hudders-
field, in the County of York, Brass Founders and Finishers, 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 chiefly to that class of lubricator for steam engine cylinders
in which the lubricant is forced through suitably placed valves into the cylinder by
the action of a piston or plunger which is alternately raised and depressed.
Hitherto the piston in these lubricators has been raised by a cam or its equivalent
and depressed by the cam or by a spiral spring. Depression by means of a cam is
too slow and the use of a spiral spring is objectionable, as there is difficulty in
regulating or adjusting the pressure of it, to correspond with the pressure in the
steam cylinder, against which it has to work and consequently a spring greatly in
excess of what is required is generally employed.
Referring to the annexed drawings.
Fig. 1, is an elevation partly in section of lubricator constructed in accordance with
my invention.
Fig. 2, plan of same with cover removed.
The cup or chamber A, to receive the lubricant, is formed in the ordinary way, with
one, two, or more exit valves, placed at the bottom, through which the lubricant is
ejected by a piston or plunger B, acting upon it. The plunger or piston B, is raised
intermittently by a cam C, acting against another cam D, attached to the plunger.
The cam C is rotated by a worm and worm wheel the worm being moved by a
lever E, crank, or its equivalent connected to a moving part of the engine. The
plunger slides between suitable guides so as to always move in the required direction.
In carrying out this invention we provide a fork F, or other similar fixture at the
top end of the plunger B, to receive a transverse laminated spring G. The spring G,
which bears against the top end of the plunger consists of one or more preferably a
number of thin plates or bars of steel g, loosely placed in position or secured together.
Projecting lugs or pieces H, are fitted or cast to the inner side of the oil cup,
against which the ends of the springs abut, so that when in position they tend to
prevent the raising of the plunger. The fork F, is preferably fitted to the plunger B,
by means of a setscrew, b, screwed into the end. In the head of the setscrew is
drilled a hole to receive the shank f, of the fork F. By this means the height of
the fork can be adjusted by raising or lowering the screw while the fork is in
position. Instead of the setscrew b, the height of the fork may be adjusted by a nut
on the shank, or by the shank f, being screwed direct into the plunger or by other
similar mechanical arrangement. A hole or slot I, is cut in the side of the oil cup
through which the springs are inserted. This is covered by a plate K, with pro-
jecting piece k, which fits into the hole. A suitable top or cover L, fitted on the
cup to enclose the lubricant and internal parts.
If desired the fork F, may be formed to receive two or more sets of plates at
different levels with the object of preventing the upper plates being bent to as
great a curve as if all were placed directly above and touching each other. One
set of plates may be placed across the lubricator at right angles to another.
The plunger is raised as stated by means of a cam and the steel plates or bars
are forced upwards in the centre taking a curved shape and forming the laminated
spring G, which forces the plunger down with the required amount of pressure as
soon as it is released by the raising mechanism. The required pressure is easily
adjusted by the number of the plates or bars used, we at present use about 24
for 70 lbs., pressure.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we wish it to be understood
that lubricators with pistons or plungers for forcing out the lubricant through valves
placed at the bottom have been extensively used and such parts form no part of
our invention, and we are aware of the Specification of G. M. Marchant Patent
No. 4869 of 1878 and do not claim anything described and claimed therein but we
declare that what we claim is :-
1. In a lubricating apparatus the combination with the plunger or piston rod, of
the flat spring G, the fork F, and the lugs H, substantially as and for the purposes
described.
2. In a lubricating apparatus the combination with the plunger or piston rod, of
the fork F, the adjusting screw b, (or its equivalent) and the springs G, composed of
flat plates, substantially as described.
Dated this 15th day of May 1889.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.

page_text: Date of Application, 17th Aug., 1888
Complete Specification Left, 16th May, 1889-Accepted, 6th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Lubricators, Applicable for the Cylinders of
Steam Engines.
We, ROBERT MARCHANT, and WILLIAM MARCHANT, both of Colne Road, Hudders-
field, in the County of York, Brass Founders and Finishers, do hereby declare the
nature of this invention to be as follows
This invention relates chiefly to that class of lubricator for steam engine cylinders
in which the lubricant is forced through suitably placed valves into the cylinder by
the action of a piston or plunger which is alternately raised and depressed.
Hitherto the piston in these lubricators has been raised by a cam or its equivalent
and depressed by the cam or by a spiral spring. Depression by means of a cam
is too slow and the use of a spiral spring is objectionable, as there is difficulty in
regulating or adjusting the pressure of it, to correspond with the pressure-in the
steam cylinder-against which it has to work and, consequently a spring greatly in
excess of what is required is generally employed.
We form the cup or chamber to receive the lubricant with one, two, or more
exit valves, placed at the bottom, through which the lubricant is ejected by a plunger
or piston acting upon it. The plunger or piston is raised intermittently by a cam
which is rotated or otherwise moved by a worm and worm wheel the worm being
moved by a lever, crank or its equivalent connected to a moving part of the engine.
The plunger slides between suitable guides so as to always move in the required
direction. The plunger or piston rod at its upper end is formed with a fork or
otherwise to receive transversely bearing against it, one or more, preferably a number
of plates or bars of steel either loosely placed in position or secured together.
Projecting lugs or pieces are fitted or cast to the cup or chamber, against which,
the ends of these plates or bars abut so that, when in position they tend to prevent
the raising of the plunger. The fork at the upper end of the piston rod may be
formed to receive two or more sets of plates at different levels, with the object of
preventing the upper plates being bent to as great a curve as if all were placed
directly above and touching each other. One set of plates may be placed across
the lubricator at right angles to another. A nut is placed at the bottom of the fork
to regulate its height according to the number of plates in use.
The plunger is raised as stated by means of a cami and the steel plates or bars
are forced upwards in the centre, taking a curved shape and forming a laminated
spring, force the plunger down with the required amount of force as soon as it is
released by the raising mechanism. The required pressure is easily adjusted by the
number of the plates or bars used. A screw placed on the side of the cup or
chamber provides or
covers an opening for inserting or withdrawing the bars or
plates. A suitable top or cover is screwed, bolted or otherwise attached to the cup
or chamber to enclose the lubricant and internal parts.
Dated this 13th day of August 1888
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Lubricators, Applicable for the Cylinders of
Steam Engines.
We, ROBERT MARCHANT, and WILLIAM MARCHANT, both of Colne Road, Hudders-
field, in the County of York, Brass Founders and Finishers, do hereby declare the
[Price 8d.]

page_text: 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 chiefly to that class of lubricator for steam engine cylinders
in which the lubricant is forced through suitably placed valves into the cylinder by
the action of a piston or plunger which is alternately raised and depressed.
Hitherto the piston in these lubricators has been raised by a cam or its equivalent
and depressed by the cam or by a spiral spring. Depression by means of a cam is
too slow and the use of a spiral spring is objectionable, as there is difficulty in
regulating or adjusting the pressure of it, to correspond with the pressure in the
steam cylinder, against which it has to work and consequently a spring greatly in
excess of what is required is generally employed.
Referring to the annexed drawings.
Fig. 1, is an elevation partly in section of lubricator constructed in accordance with
my invention.
Fig. 2, plan of same with cover removed.
The cup or chamber A, to receive the lubricant, is formed in the ordinary way, with
one, two, or more exit valves, placed at the bottom, through which the lubricant is
ejected by a piston or plunger B, acting upon it. The plunger or piston B, is raised
intermittently by a cam C, acting against another cam D, attached to the plunger.
The cam C is rotated by a worm and worm wheel the worm being moved by a
lever E, crank, or its equivalent connected to a moving part of the engine. The
plunger slides between suitable guides so as to always move in the required direction
In carrying out this invention we provide a fork F, or other similar fixture at the
top end of the plunger B, to receive a transverse laminated spring G. The spring G,
which bears against the top end of the plunger consists of one or more preferably a
number of thin plates or bars of steel g, loosely placed in position or secured together.
Projecting lugs or pieces H, are fitted or cast to the inner side of the oil cup,
against which the ends of the springs abut, so that when in position they tend to
prevent the raising of the plunger. The fork F, is preferably fitted to the plunger B,
by means of a setscrew 6, screwed into the end. In the head of the setscrew is
drilled a hole to receive the shank f, of the fork F. By this means the height of
the fork can be adjusted by raising or lowering the screw while the fork is in
position. Instead of the setscrew b, the height of the fork may be adjusted by a nut
on the shank f, or by the shank f, being screwed direct into the plunger or by other
similar mechanical arrangement. A hole or slot I, is cut in the side of the oil cup
through which the springs are inserted. This is covered by a plate K, with pro-
jecting piece k, which fits into the hole. A suitable top or cover L, is fitted on the
cup to enclose the lubricant and internal parts.
If desired the fork F, may be formed to receive two or more sets of plates at
different levels with the object of preventing the upper plates being bent to as
great a curve as if all were placed directly above and touching each other. One
set of plates may be placed across the lubricator at right angles to another.
The plunger is raised as stated by means of a cam and the steel plates or bars
are forced upwards in the centre taking a curved shape and forming the laminated
spring G, which forces the plunger down with the required amount of pressure as
soon as it is released by the raising mechanism. The required pressure is easily
adjusted by the number of the plates or bars used, we at present use about 24
for 70 lbs., pressure.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we wish it to be understood
that lubricators with pistons or plungers for forcing out the lubricant through valves
placed at the bottom have been extensively used and such parts form no part of
our invention, but we declare that what we claim is :—
1. In a lubricating apparatus the combination with the plunger or piston rod, of
the flat spring G, the fork F, and the lugs H, substantially as and for the purposes
די

page_text: 2. In a lubricating apparatus the combination with the plunger or piston rod, of
the fork F, the adjusting screw b, (or its equivalent) and the springs G, composed of
flat plates, substantially as described.
Dated this 15th day c
WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.