IMPROVED APPARATUS FOR SUPPLYING LUBRICANTS TO FRICTION SURFACES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Augustin Hugot at the Office of
the Commissioners of Patents on the 8th August 1881.
AUGUSTIN HUGOT, of Paris, in the Republic of France, temporarily of Chancery
Lane, in the County of Middlesex. "IMPROVED APPARATUS FOR SUPPLYING
LUBRICANTS TO FRICTION SURFACES."
The object of this Invention is to supply automatically a regulated amount of
lubricant to friction surfaces, say, for example, for cylinders and pistons of steain
engines, or wherever steam or equivalent motive force is available for working the
lubricating apparatus. The lubricant is contained in a vessel formed of glass and
metal, and terminating at bottom in a screwed socket for securing it, say to the
cylinder cover of a steam engine. The upper part of this vessel is formed with a
stuffing box to receive a tube which hangs in the centre of the vessel, and is
capable of vertical adjustment therein by means of a thread on the screw engaging
with a tapped portion of the stuffing box. Attached to the lower end of this tube
is a ball valve furnished with a spindle, the lower end of which enters the socket
before mentioned, and thus serves as a guide to the ball valve, while the upper end
of the spindle projects into the tube and is secured thereto by a transverse pin
which is free to slide in longitudinal slots in the tube. The tube is also pierced
laterally to permit of the free flow of the lubricant from the tube into the
surrounding vessel. Fitted to the upper end of this tube is a cup or funnel for
receiving the lubricant and guiding it into the tube through lateral holes in
the tube made near the junction of the cup with the tube. The upper end of this
tube is fitted with a hollow screw plug which serves to close the lateral openings
through which the lubricant passes from the cup to the tube, and and it is also
fitted an air tube leading into the lubricating vessel. This screw plug is itself
fitted with a central screw plug which serves to close the pendant air tube and
prevent the passage of air to or from the lubricating vessel.
When it is desired to supply this apparatus with lubricant, the central tube is
screwed down so as to hold the ball valve to its seat, and the air tube is opened by
the removal of the smaller screw plug. The openings also from the cup to the
tube are opened by turning the larger screw plug. The lubricant is then poured
into the cup whence it descends through the central tube to the vessel below.
Drine Q.77

page_text: The advantage of making this vessel wholly or partly of glass is that the state of
its contents will be always in view when the vessel is filled. To put the apparatus
in action it is only necessary to replace the smaller screw plug and to screw down
the larger plug so as to close the openings from the cup to the tube. The tube
is then to be raised sufficiently to remove its pressure from the ball valve and give
to the latter the desired amount of play. The ball will then be free to rise
under the upward pressure of the steam admitted to the cylinder, and a supply of
lubricant will pass out of the vessel to the cylinder determined by the space
allowed for its discharge past the ball valve.
So soon as the pressure of the steam ceases the ball valve will drop into its seat 1
and the supply of lubricant will be arrested.