Improved Means or Apparatus for Lubricating Loose Pulleys and the like.
Year: 1891

page_text: Date of Application, 29th May, 1891
Complete Specification Left, 29th Feb., 1892-Accepted, 2nd Apr., 1892
PROVISIONAL SPECIFICATION.
Improved Means or Apparatus for Lubricating Loose Pulleys and
the like.
I, ARTHUR WALKERDINE, Old Mill Yard, Tutbury, in the County of Stafford,
Fitter, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved means or apparatus for lubricating loose
pulleys and the like whereby an even supply of the lubricant is obtained without
the necessity of constant attention.
In carrying out my invention I provide an oil vessel (preferably) of an elongated
shape with a suitable feeding aperture and cap in the side thereof for refilling, and
having a plug tap or valve cast or fixed on the inner end thereof a disc being fixed
on the outer end of the plug. This tap terminates with a short length of tube
threaded on the outer side which is screwed into the boss of the loose pulley or the
like until the orifice from the tap or valve almost touches the pulley shaft leaving
a direct communication between the shaft and oil vessel intercepted by the tap or
valve. On the side of the oil vessel are cast two lugs through which works a rod
or piston set up by a spring on one of the said lugs, and attached at its inner end
to the side of the disc before mentioned, the outer end of this rod or piston passes
through the rim of the loose pulley and projects slightly, being made square or of
some other angular form where it passes through the rim.
The method of operating the lubricator is as follows:-
The rod or piston is pressed inwards every time it comes into contact with the
belt and partly revolves the disc thus opening the tap and allowing a small quantity
of the lubricant to escape through the orifice and pass along the tube to the pulley
shaft, immediately the belt passes to the fast pulley the rod is released and the
valve or tap closed; the above operation occurs every time the outer end, or head
of the piston or rod engages with the belt, this head may be screwed on to the rod
and by adjusting the projection of it through the rim of the loose pulley the
quantity of lubricant passing to the shaft may be regulated. I may have a second
tap between the one above mentioned and the orifice near the pulley shaft for still
further regulating the flow of the lubricant, and in case the pulley is stopped while
the belt is still bearing on the head of the rod or piston this tap will close the
orifice and prevent any waste until the machinery is started again:
The flow of the lubricant may also be regulated by having an additional hole or
holes in the disc for connecting the inner end of the rod therewith, thus allowing
the tap to be opened further or closed as desired, these holes may also be used for
closing the tap in case the additional tap is not used.
It will be seen that this apparatus may be used for lubricating any shaft where
there is a point of contact or means to operate the valve or tap through the medium
of the rod or piston as described.
Linted this 28th day of May 1891
ARTHUR WALKERDINE.

page_text: :
COMPLETE SPECIFICATION.
Improved Means or Apparatus for Lubricating Loose Pulleys and.
the like.
I, ARTHUR WALKERDINE, Old Mill Yard, Tutbury, in the County of Stafford,;
Fitter 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.:-
My invention relates to an improved means or apparatus for lubricating loose
pulleys and the like whereby an even supply of the lubricant is obtained without
the necessity of constant attention and in order that the same may be more readily
understood I have caused to be annexed to this Specification the accompanying
slicet of drawings to the figures and letters of reference marked thereon I now
refer.
Figure 1 is a longitudinal section through my improved device as used for
lubricating the shaft when the pulley is driven at high speed.
Figure 2.is a longitudinal.section of same adapted for driving a low speed.
Fig. 3 is an elevation and
Fig. 4.isa plan of the screw plug hereafter described.
I will first describe my, invention as used for lubricating when driving at high
speed.
I provide an oil wessel A of suitable shape having a feeding aperture and
cap B in the side thereof for refilling, into the inner end of this oil vessel I screw
a double threaded nut C terminating in a tube D in the inside of the said oil
vessel, the other end being screwed into the boss E of the pulley so as to leave a
communication between the pulley shaft F and the oil vessel A intercepted by the
valve G which is set up to a seating H by means of the spring J; into the
orifice K.in the double threaded nut Iscrew a plug L having diminished grooves M
cut in the sides thereof of any suitable form and number so that by screwing or
unscrewing same the flow of the lubricant may be regulated.
Through a stuffing box, N screwed into the outer end of the said oil vessel there
works a piston or rod O set up to the said outer end by means of a spring P and
terminating at the rim Qof the pulley in a suitably formed projection R passing
through the said rim, as shewn and being provided with suitable means of
adjustment such as by the cotters S shewn on the drawings.
The action of the apparatus is as follows:-When the pulley is driven at high
speed the oil or other lubricant flics to the head of the oil vessel and there enters
the tube D, grooves being cut for the purpose; in the sides of the piston O, every
time the projecting end R of the rod or piston comes into contact with the belt
it presses the end of the piston into the tube D thus pumping or forcing the
lubricant into the chamber T, the pressure of which opens the valve G and
allows the lubricant. to pass to the pulley shaft F through the grooves M in the
plug L.
.
As adapted for use when the pulley is driven at low speed I continue the piston
or plunger as shewn at O' Figure 2 and shorten the tube D', the lubricant being
admitted through the orifices U and a groove cut round the piston as at V to catch
the oil when the said piston is operated as before described and pump it forward
to the plug L passing out through the grooves M as before, it being understood
that in the case of low speed the lubricant has not such a tendency to fly to the
head of the oil vessel. It is evident that I may employ various forms of taps or
valves for operating and controlling the supply of the lubricant and I may slightly
vary the details for different kinds of lubricants or different kinds of machinery if
necessary.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what [
claim is :-
The improved apparatus or means for lubricating loose pulleys and the like
through the medium of the belt pressing in the head or end of a piston or rod every
time it comes in contact therewith and thus pumping or forcing forward the
lubricant contained in the oil vessel through a suitable valve or controlling device
to the pulley shaft substantially as described herein and illustrated by the accom-
panying sheet of drawings.
W. SWINDELL,
Agent for the Applicant.