IMPROVEMENTS IN LUBRICATING CUPS."
Year: 1876

page_text: A
LETTERS PATENT to James Barbour, of Belfast, in the County of Antrim,
Ireland, for the Invention of "IMPROVEMENTS IN LUBRICATING CUPS."
communication from abroad by Andrew Coulter, of Riga, in the Empire of
Russia.
PROVISIONAL SPECIFICATION left by the said James Barbour at the Office
of the Commissioners of Patents on the 22nd April 1876.
JAMES BARBOUR, of Belfast, in the County of Antrim, Ireland.
IN LUBRICATING CUPS."
"IMPROVEMENTS
These improvements are especially applicable to the collars or necks and steps of
spinning, twisting, or other frames (in which upright spindles are used), the lubri-
cation of which entails a great waste of oil by the ordinary method. This Invention
is intended to lessen this waste, and consists of a boss or projection on the inside of
the oil cup and round the spindle, the top of this projection being about or nearly
level with the outer rim of the oil cup, which is really an annular recess. On the
top of the boss round the spindle a small neck or groove is cut radially, and around
this boss or projection a thin ring is placed, which is the same depth as the pro-
jection round the spindle and of such a diameter inside as to leave a small annular
space between it and the inner boss. This space is connected by radial nicks or
grooves in the edges of the ring to the oil cup, the annular space between the
thin outer ring and the boss round the spindle being so small as always to be full
of the lubricant owing to the action of capillary attraction, no matter what is the
level of the oil in the outer part of the cup, which only requires replenishing at long
intervals, and yet the supply to the spindle is continuous.
The outer ring can be easily removed for the purpose of cleaning in case it
becomes dirty or sticky with oil.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Barbour in the Great Seal Patent Office on the 21st October
1876.
-
JAMES BARBOUR, of Belfast, in the County of Antrim, Ireland.
"
IMPROVEMENTS
IN LUBRICATING CUPS." A communication from abroad by Andrew Coulter, of
Riga, in the Empire of Russia.
This Invention is specially applicable to the collars or necks and steps of
spinning, twisting, or other frames in which upright spindles are used, the lubri-
cation of which entails a great waste of oil by the ordinary method. In order to
lessen this waste of oil the oil cup is constructed and fitted as shewn in the accom-
panying Drawing, where-
Fig. 1 is a vertical section of the improved oil cup applied to a spindle; Fig. 2 is
a plan view of the same; and Fig. is a perspective view of the ring with which
the cup is fitted for ensuring the upward flow of the lubricant.
a is the oil cup, formed with a concentric cylindrical projection b on the inside
thereof fitting around the spindle to be lubricated; the top of this projection bis
about or nearly level with the outer rim of the oil cup, which is an annular recess
in the top of the tubular casting c, forming the collar or neck for the reception of
the spindle ; in the upper edge of the cylindrical projection b surrounding the
spindle a small nick or groove is cut radially, and surrounding this cylindrical
projection b is a loose ring e of the same depth as the projection b. The internal
diameter of this ring is such as to leave a small annular space between it and the
cylindrical projection b; this space is connected by radial nicks or grooves made in
the edges of the ring (see the detached view, Fig. 3) with the oil cup; the annular
space between the thin outer ring and the cylindrical projection round the spindle
is made sufficiently small to ensure its being charged to overflowing with lubri-
cant from the outer part of the cup through the action of capillary attraction.
This action will be maintained so long as there is any supply of oil in the outer
part of the cup, which only requires replenishing at long intervals to ensure a
continuous supply to the spindle.
The ring e may be made conical, as shewn at Fig. 4, to correspond to the conical
projection b, and being loose it can be easily removed for the purpose of cleaning in
case it becomes dirty or stick with oil.
Having now set forth the nature of the Invention of "Improvements in Lubri-
cating Cups," as communicated to me by my foreign correspondent, and explained the
manner of carrying the same. into effect, I wish it to be understood that under the
above in part recited Letters Patent I claim, the construction and fitting of lubricating
cups as above described, whereby an automatic overflow of the lubricant is
maintained.
In witness whereof, I, the said James Barbour, have hereunto set my hand
and seal, the 19th day of October, in the year of our Lord One thousand
eight hundred and seventy-six.
JAMES BARBOUR. (L.S.)