Year: 1895

page_text: A communication by FRIEDRICH Loos, of 46, Gastenhofer-Hauptstrasse,
Nuremberg, in the Empire of Germany, Manufacturer of Bronzes.
I, WILLIAM PHILLIPS THOMPSON, F.C.S. M.I.M.E. of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6 Bank Street,
Manchester, both in the County of Lancaster, 118 New Street, Birmingham
in the County of Warwick and 31 High Holborn in the County of Middlesex,
Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object a small lubricator of that kind which is more
particularly applicable for bicycles and the like.
The essential feature of the invention consists in an improved arrangement by
means of which the filling aperture arranged on the upper side or top of the
lubricator oil chamber may be closed and opened as may be desired. The device
employed for this object is formed of a pivotted revoluble cover attached to the
lubricator oil chamber, on which cover a valve for closing the filling aperture is
arranged. When the cover is moved over the filling aperture this valve, under the
impulse of a spring, springs into the aperture and thus closes the latter, whilst when
the holder or cover is turned down, the valve is pressed out of the above mentioned
aperture and leaves the same open.
In order to enable the valve to slide over the surface of the lubricator when the
cover is turned down, the lubricator is made of a spherical or cylindrical form at
least at its upper part, and has the filling aperture at its highest point.
Two forms of construction of this improved lubricating box may be described.
In one form of construction the cover may have the shape of a spherical cap or
hood, exactly fitting on the surface of the lubricator, said cap or hood being
revoluble on a pin passed through the centre of the sphere. On the centre of this
cover or cap a tubular projection is formed in which valve is adjustably arranged,
which valve is pressed inwards on to the outer surface of the lubricator by means
of a spring. If the cap or cover be turned upwards on its pin or axis, the valve
in its highest position, springs under the action of the spring into the filling
aperture and closes the latter tight. The cover or cap is held fast in this position
by the spring.
In order to uncover the aperture for the purpose of filling the lubricator oil
chamber, the cover or cap is moved downwards, for which purpose the projection
carrying the valve may serve as a handle.
In the other form of construction, the lubricator is made as a hollow cylinder,
and the cover in the form of a forked strap revoluble on a pin passing through
the box in the direction of its longitudinal axis. This cover has on its centre a
projection which contains the spring valve as before, but it does not need to press
quite tightly on the periphery of the lubricator. The filling aperture is, as in the
first described form of construction, placed at the top, and the valve springs into
the same when the holder is placed in the highest position.
The lubricating device herein before described is characterized not only by its
simplicity but mainly also by the absolutely dust-tight closing of the box in

page_text: consequence of the use of a valve which is not obtained with most of the devices at
present employed.
Dated this 8th day of March 1895.
A communication by FRIEDRICH Loos, of 46, Gastenhofer-Hauptstrasse,
Nuremberg, in the Empire of Germany, Manufacturer of Bronzes.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool and 6 Bank Street,
Manchester, both in the County of Lancaster, 118 New Street, Birmingham in
the County of Warwick and 31 High Holborn in the County of Middlesex,
Civil Engineer, 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 small lubricators of the kind which are more particularly
applicable for bicycles and the like and its object is to provide a simple means
whereby the filling aperture on the upper side of the oil chamber may be readily
opened and closed whilst effecting an absolutely dust-tight closing thereof. For
this object a spring valve is employed in combination with the oil chamber, said
valve being carried by a movable plate or cover. When the cover is moved over
the filling aperture, said valve, under the impulse of a. spring, springs into the
aperture and thus closes the latter, whilst when the holder or cover is moved away
from the filling aperture, the valve is pressed out of said aperture and leaves the
same open.
In the accompanying drawings, the invention is shown applied to lubricators of
various shapes, it being obvious that any form of oil chamber may be employed,
preferably of a cylindrical or spherical form with the filling aperture at its
uppermost part or point.
Figures 1 and 2 are sectional elevations showing the improved lubricator open
and closed respectively, the oil chamber being of spherical form.
Figures 3 and 4 side and front elevations showing the invention applied to an oil
chamber of cylindrical form.
Figures 5 and 6 sectional elevation and plan of cylindrical oil chamber with
filling aperture and closing valve arranged on its flat upper end instead of on its
periphery.
Figures 7 and 8 similar views showing another means of guiding the cover
plate.
In Figures 1 and 2 in which the oil chamber has a spherical form the movable
plate or cover has the form of a semi-spherical cap or hood a exactly fitting on the
surface of the oil chamber, said cap or hood being revoluble on a pin 6 passed
through the centre of the box or pivotally connected at said point. On the centre
of this cap or hood a tubular projection a' is formed in which is arranged a valve d,
which is pressed on to the outer surface of the oil chamber by means of a spring c.
If the cover or cap he turned upwards the valve d under the action of the
spring springs into the filling aperture e in the position shown in Figure 2,
and thus closes this quite tight. The cap is held fast in this position by the
spring,c.
In order to uncover the aperture e for the purpose of filling the lubricator oil

page_text: chamber, the cover or cap is moved downwards, see Figure 1, for which purpose
the projection a¹ carrying the valve may serve as a handle or thumb piece.
In Figures 3 and 4, in which the oil chamber has the form of a hollow cylinder,
the movable plate or cover is formed as a forked strap revoluble on a pin b passing
through the box in the direction of its longitudinal axis or pivotally connected at
said point. This cover has on its centre a projection a' which contains the spring
valve as before, but it does not need to press quite tightly on the periphery of the
lubricator. The filling aperture is, as before described, placed at the top, and the
valve d springs into the same when the holder is placed in the highest position.
In Figures 5 to 8 iu which the movable plate or cover a is arranged on the flat
end B of the cylindrical oil chamber B, the said cover a is retained on the oil
chamber by means of bent-over flanges, plates or the like, producing a guide
groove 9 in which the cover a may freely slide, either in a straight (as shown in
Figures 5 and 6) or a circular (as shown in Figures 7 and 8) path, and in addition
to or instead of said guide-groove g the cover a may be arranged to turn on a pin
or pivot b. The sliding action of the cover plate a carrying the closing valve d
closes and opens the filling aperture e in the manner before described. If desired
the open position of the cover a may be maintained by means of a depression such
as finto which the valve d may spring when the cover is drawn to its fully open
position.
The lubricating device bereinbefore described is characterised not only by its
simplicity but mainly also, in consequence of the use of a valve, by the absolutely
dust-tight closing of the box which is not obtained with most of the devices at
present employed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :—
A lubricator having a plate or cover movably held on the outside of the oil
chamber and carrying a spring valve adapted to close the filling aperture
substantially as and for the purpose hereinbefore set forth.
Dated this 9th day of May 1895.
WM. P. THOMPSON & Co.,
Agents.