Improvements in the Arrangement and Construction of Lubricators."
Year: 1891

page_text: Date of Application, 20th Oct. 1891
Complete Specification Left, 20th July, 1892-Accepted, 15th Oct., 1892
..
PROVISIONAL SPECIFICATION.
Improvements in the Arrangement and Construction of Lubricators."
WILLIAM HENRY THOMPSON and ROBERT THOMPSON Engineers 155. Feu-
church Street London, E.C. do hereby declare the nature of this invention to be
as follows:-
Improvements in lubricators containing the grease or lubricant in a cylinder
having a piston working within it and operating in such a manner as to force the
grease through the grease ways into the bearing surfaces. Our object being a more
convenient and effective arrangement of simple mechanism or parts for insuring
regulating and indicating the passage of the lubricant to the bearing surfaces.
In carrying our invention into practice we employ a cylinder or ring arranged:
with a suitable piston which is connected with a rack by means of the end of the
said rack being formed with a screw which passes through the piston and projecting
beyond it receives a nut the setting up of which firmly connects the rack with the,
piston at the same time drawing the discs or parts of which the piston is composed
together in such a manner as to compress and keep in working order the packing
employed for making the piston tight, a pinion carried on a spindle arranged across
the cylinder and working in suitable, bearings so as to gear into the rack and
operate it by the rotation of the said spindle which rotation is effected by means of
a ratchet wheel arranged on the end of the spindle and a lever provided with a
suitable click or pawl falling into the ratchet wheel teeth in such a manner that
the radiation or movement of the lever causes the said ratchet wheel to revolve,
the teeth of the ratchet wheel are so formed that the click or pawl passes over
them when the lever is lifted or moved by any convenient motion or mechanism
the said lever being arranged with an adjustable weight which causes it to
gradually return to its normal position as the grease is forced into the bearings by,
the gravitation of the said adjustable weight acting on the piston through the
medium of the lever ratchet wheel pinion and rack.
The upper end of the cylinder is arranged with a glass dome or cover into
which the rack projects when raised so that it may be observed through the said
glass dome and indicate the position of the piston in the cylinder by which
indication the quantity of grease or lubricant contained in the cylinder may be
estimated.
In order that the cylinder may be charged with the grease without disconnecting
the mechanism the lower end of the cylinder or ring is closed by being screwed to.
a suitable end or plug from which it can be detached when it is necessary to have
the cylinder open for recharging, the aforesaid end or plug is arranged so that it
may be attached to the bearing and is provided with suitable outlets for permitting
the passage of the grease from the cylinder to the bearing surfaces.
The operation is as follows.-The lubricator is so mounted on the bearing block
that the ratchet lever & weight may be lifted by a projection or cam attached to
or revolving with the shaft, when so lifted the weight acts upon the piston
(through the medium of the aforesaid ratchet wheel pinion and rack) so as to
press upon the grease with which the cylinder is charged and force it into the
bearing with pressure obtained by the gravitation of the weight and the lever
returning to their normal position.
In another part of our invention the grease to be forced into the bearing surfaces
is contained in an inverted movable cylinder arranged with a hollow cup formed
piston which is connected to the channel provided for the passage of the lubricant
to the bearing surfaces so as to be fixed while the cylinder is free to gravitate or

page_text: '
slide over the said piston by which movement it forces the lubricant through the
grease passages into the bearing surfaces with a pressure according to the weight
of the cylinder and the additional weight it may be loaded with by a series of
regulating rings which rest on a lip or flange formed at the mouth of the cylinder,
these rings form a convenient method of regulating increasing or diminishing the
weight or pressure necessary to meet the varying conditions under which the
lubricant may be worked.
W. H. THOMPSON.
ROBT. THOMPSON.
COMPLETE SPECIFICATION.
Improvements in the Arrangement and Construction of Lubricators.
WILLIAM HENRY THOMPSON and ROBERT THOMPSON, Engineers, 155 Fen-
church Street, London, E.C., 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 :—
Improvements in lubricators containing the grease or lubricant in a cylinder
having a piston working within it, and operating in such a manner as to force the
grease through the greaseways into the bearing surfaces. Our object being a more
convenient and effective arrangement of simple mechanism or parts for insuring the
regulating and indicating the passage of the lubricant to the bearing surfaces.
In carrying our invention into practice we employ a cylinder or ring arranged
with a suitable piston which is connected with a rack by means of the end of the
said rack being formed with a screw which passes through the piston and projecting
beyond it receives a nut the setting up of which firmly connects the rack with the
piston at the same time drawing the discs or parts of which the piston is composed
together in such a manner as to compress and keep in working order the packing
employed for making the piston tight, a pinion carried on a spindle arranged across
the cylinder and working in suitable bearings so as to gear into the rack and
operate it by the rotation of the said spindle which rotation is effected by means of
a ratchet wheel arranged on the end of the spindle and a lever provided with a
suitable click or pawl falling into the ratchet wheel teeth in such a manner that
the radiation or. movement of the lever causes the said ratchet wheel to revolve
the teeth of the ratchet wheel are so formed that the click or pawl passes over
them when the lever is lifted or moved by any mechanism the said lever being
arranged with an adjustable weight or spring which causes it to gradually return
to its normal position as the grease is forced into the bearings by the gravitation
of the said adjustable weight acting on the piston through the medium of the lever
ratchet wheel pinion and rack.
The upper end of the cylinder is arranged with a glass dome or cover into
which the rack projects when raised so that it may be observed through the said
glass dome and indicate the position of the piston in the cylinder by which
indication the quantity of grease or labricant contained in the cylinder may be
estimated.
In order that the cylinder may be charged with the grease without disconnecting
the mechanism the lower end of the cylinder or ring is closed by being screwed to
a suitable end or plug from which it can be detached when it is necessary to have
the cylinder open for recharging, the aforesaid end or plug is arranged so that it
may be attached to the bearing and is provided with suitable outlets for permitting
the passage of the grease from the cylinder to the bearing surface. In another
part of our invention the cylinder containing the grease to be forced into the
bearing surfaces is inverted and arranged with a hollow cup formed piston which
is connected to the channel provided for the passage of the lubricant to the
bearing surfaces so as to be fixed while the cylinder is free to gravitate or slide

page_text: over the said piston by which movement it forces the lubricant through the grease
passages into the bearing surfaces with a pressure according to the weight of the
cylinder and the additional weight it may be loaded with by a series of regulating
rings which rest on a lip or flange formed at the mouth of the cylinder, these
rings form a convenient method of regulating, increasing or diminishing the weight
or pressure necessary to meet the varying conditions under which the lubricant
may be worked.
DESCRIPTION OF DRAWINGS.
Fig. 1 Sheet 1, shows vertical section Fig. 2 elevation and Fig. 3, plan. of
lubricator according to the first part of our invention.
A. is a cylinder or ring, B. the piston, C the rack D the lower end of rack
projecting beyond the piston and screwed to receive the nut for drawing the two
parts of the piston together for compressing the packing a. E is a pinion operating
the rack C, and piston B, by means of a ratchet wheel F, and lever G-arranged
with an adjustable weight d,-working on the spindle carrying the ratchet wheel b. b.
the lever gravitates from an upward or backward movement imparted to it by a
cam, or other motion that may be utilized for the purpose, and as each lift and
drop of the lever moves the ratchet wheel a part of a revolution, each drop thus
moving the piston and increasing the radiation of the lever until it has moved the
wheel and radiated a sufficient distance for the pawl H. to engage another tooth,
when the operation is again repeated and so on for each tooth, whilst the lubricator
is working, the piston B forcing the grease from the cylinder A. into the bearing
surfaces, with a pressure varying according to the gravitating weight or drop of
the lever the pawl I retaining the ratchet wheel and prevents turning, whilst the
pawl H, is passing over the teeth. For some operations the weight of the lever
may be sufficient, without the adjustable weight.
:
Sheet 2, shews a lubricator according to the second part of our invention
Fig. 1. elevation Fig. 2. section Fig. 3. plan and elevation of adjusting ring.
A is a sliding cylinder, and B the hollow cup formed piston both of which are
charge dwith grease, B being connected with the bearing by the screw surrounding
the outlet passage b, through which the grease is forced into the bearing surfaces, by
the cylinder A with a pressure varying according to the weight and number of
regulating rings C with which the cylinder A, may be loaded, which number will
vary according to the resistance offered by the grease that part of the charge
contained in the cup piston B. remaining as a reserve, that will melt into the
bearing in the event of its heating by neglect to keep the cylinder properly
charged.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:
Firstly We claim the arrangement and combination by which a lever in its
upward or backward movement carries a pawl or catch over the teeth of a ratchet
wheel engaging such pawl in one or more of the said teeth so that when relieved
of the pressure from which it receives its upward or backward movement descends
its gravitating weight overbalancing the resistance of the grease contained in the
cylinder and forcing it from the lubricator on to the bearing surfaces Also, we
claim the arrangement of glass index dome in combination with the cylinder rack
and piston for indicating the quantity or position of grease in the cylinder.
Substantially in the manner and for the purposes herein described and shewn by
Figs. 1, 2 & 3 Sheet 1 of the drawings hereto annexed.
Secondly: We claim the arrangement and combination of the regulating rings
with a sliding cylinder and cup piston for forcing the grease into the bearing
surfaces at various pressures and maintaining a reserve of grease in the event of
failure to keep the cylinder charged.

page_text: Substantially in the manner and for the purpose herein described and shewn by,
Figures 1, 2 & 3, Sheet 2, of the drawings hereto annexed.
July 20th 1892.
W. H. THOMPSON.
ROBT. THOMPSON.