A NEW OR IMPROVED LUBRICATOR
Year: 1883

page_text: LETTERS PATENT to John Imray of N° 28. Southampton Buildings Chancery
Lane in the County of Middlesex for an Invention of "A NEW OR IMPROVED
LUBRICATOR communicated to him from Abroad by Heinrich Zweiffel of
Kalk near Cologne in the German Empire
وز
PROVISIONAL SPECIFICATION left by the said John Imray at the Office
of the Cominissioners of Patents on the 2nd June 1883.
»
JOHN IMRAY of N° 28 Southampton Buildings Chancery Lane in the County
of Middlesex "A NEW OR IMPROVED LUBRICATOR [communicated to him from
Abroad by Heinrich Zweiffel of Kalk near Cologne in the German Empire]
This invention relates to the construction of a lubricator by which doses of
tallow or other lubricant can from time to time be supplied to a slide, bearing or
other working part of an engine or machine. A cylindrical vessel, which has at
its bottom a passage and screw for fixing it in an oil hole, is fitted with a piston
which can be moved up or down by means of a screw working through the piston
and turning between collars in the lid of the vessel which is screwed on. The
piston is prevented from turning round either by giving it and the vessel a
polygonal or elliptical shape or by longitudinal guides, or by making the screw
eccentric to the piston; or, in cases where solid lubricant is employed, the piston
is made with deep ribs projecting down into the lubricant which resists their
tendency to turn, The vessel being charged with lubricant and the lid being
screwed on, the piston is from time to time pushed downwards by turning the
screw by means of its button head that projects above the lid, and a portion of the
lubricant is thus forced through the passage at the bottom.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Imray in the Great Seal Patent Office on the 24th November
1883.
JOHN IMRAY of No 28 Southampton Buildings, Chancery Lane, in the county
of Middlesex "A NEW OR IMPROVED LUBRICATOR " A communication to me from
abroad by Heinrich Zweiffel of Kalk near Cologne in the German Empire
This invention relates to the construction of a lubricator by which doses of
tallow or other lubricant can, from time to time, be supplied to a slide, bearing or
other working part of an engine or machine. A cylindrical vessel, which has at its
bottom a passage and screw for fixing it in an oil hole, is fitted with a piston which
can be moved up or down by means of a screw working through the piston and
turning between collars in the lid of the vessel which is screwed on.
The piston is
prevented from turning round either by giving it and the vessel a polygonal or
elliptical shape or by longitudinal guides, or by making the screw eccentric to the
piston; or, in cases where solid lubricant is employed, the piston is made with deep
ribs projecting down into the lubricant, which resists their tendency to turn; or
again, the piston may merely be made to fit with sufficient friction against the
vessel, by means of spring or other packing, to prevent it from turning.
The vessel being charged with lubricant, and the lid being screwed on, the piston
is from time to time pushed downwards by turning the screw by means of its
button head that projects above the lid, and a portion of the lubricant is thus
forced through the passage at the bottom.
Fig. 1 of the accompanying drawings shews a vertical section, and fig. 2 a side
view of a lubricator constructed according to the above described invention. The
cylindrical vessel a has a piston & through which passes a screw spindle c, so that
by turning the latter, the piston is moved up and down. The vessel being filled
with lubricating material, and closed by screwing on the cover b, the lubricant is
forced out of the discharge opening at the lower end of the vessel by turning the
screw c so as to force the piston downwards, the rotation of the piston being
prevented by the ribs e on the underside, projecting down into the lubricant.
The lubricant having all been discharged, the piston is raised again, the cover is
unscrewed, and the vessel is filled with a fresh quantity of lubricant.
Having thus described the nature of this invention and in what manner the
same is to be performed, as communicated to me by my foreign correspondent, I
claim
The hereindescribed construction of lubricator wherein a piston d in a vessel a
is actuated by a screw spindle c so as to force the lubricating material through the
discharge passage, the rotation of the piston being prevented either by ribs e
penetrating into the lubricating material, or by an eccentric position of the screw
spindle or by making the vessel non-circular in cross section, or by making the
piston work with frictional packing in the vessel.
In Witness whereof I the said John Imray have hereunto set my hand and
seal this twenty fourth day of November in the year of Our Lord, one thousand,
eight hundred and eighty three.