Ax. IMPROVED PUMP SUITABLE FOR LUBRICATING AND FOR OTHER PURPOSES.
Year: 1868

page_text: LETTERS PATENT to Thomas Butterworth, of 18, Mumps, Oldham;.
in the County of Lancaster, Engineer, for the Invention of "Ax.
IMPROVED PUMP SUITABLE FOR LUBRICATING AND FOR OTHER PURPOSES.'
Sealed the 19th February 1869; and dated the 4th September 1868.
PROVISIONAL SPECIFICATION left by the said Thomas Butterworth.
at the Office of the Commissioners of Patents,, with his Petition,.
on the 4th September. 1868..
I, THOMAS BUTTERWORTH, of 18, Mumps, Oldham, in the County-
of Lancaster, Engineer, do hereby declare the nature of the said In--
vention for "AN IMPROVED PUMP SUITABLE FOR. LUBRICATING AND FOR OTHER.
PURPOSES," to be as follows:-
The pump consists of an ordinary barrel and plunger, but instead of
the ordinary suction and delivery valves I use a.revolving valve.or tap,..
which is so constructed that as it revolves it alternately opens and shuts .
a communication between the-pump barrel and suction pipe and between...
the pump barrel and delivery pipe. I accomplish this as follows:-The-
valve or tap is provided with three branches, one of which is connectedi

page_text: to the suction pipe, one to the pump barrel, and one to the delivery pipe,
and a passage is cut in the revolving plug, so as to open a communi-
cation between the pump barrel and the suction pipe and delivery pipe
alternately.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Butterworth in the Great Seal Patent
Office on the 2nd March 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
BUTTERWORTH, of 18, Mumps, Oldham, in the County of Lancaster,
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of September, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Butterworth, Her special
licence that I, the said Thomas Butterworth, my executors, adminis-
trators, and assigns, or such others as I, the said Thomas Butterworth,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVED PUMP SUITABLE FOR LUBRICATING AND FOR OTHER PURPOSES," upon
the condition (amongst others) that I, the said Thomas Butterworth, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Scal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Butterworth, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement :-

page_text: The pump consists of an ordinary barrel and plunger, but instead of
the ordinary suction and delivery valves I use a revolving valve or tap,
which is so constructed that as it revolves it alternately opens and shuts
a communication between the pump barrel and suction pipe and between
the pump barrel and delivery pipe. I accomplish this as follows:-
The valve or tap is provided with three branches, one of which is con-
nected to the suction pipe, one to the pump barrel, and one to the
delivery pipe, and a passage is cut in the revolving plug, so as to open
a communication between the pump barrel and the suction pipe and
delivery pipe alternately.
In the annexed Drawings Fig. 1 is a longitudinal section of a pump
arranged according to my Invention. A is the pump barrel; B is the
plunger; C is the revolving tap or valve (a detached view of which is
shewn at Fig. 2). This tap works in the case C, which is provided with
the three branches C³, C², C³. D is the suction pipe, and E the delivery
pipe, or vice versa; F, F, are the passages in the tap which open a
communication between the pump barrel and the delivery and suction
pipe alternately as the plug revolves; G is a back pressure valve on the
delivery side, which takes up all the pressure and enables the plug to
work almost without any friction.
Figure 3 is a plan, Figure 4 a longitudinal section, and Figure 5 an
end view of my pump arranged as a lubricator. The lubricant is placed
in the tank A, the barrel of the pump being placed beneath this tank,
as shewn at B, or it may be placed in any other suitable position. The
necessary motion is imparted to the revolving plug by means of the bevil
gearing C, C, which is actuated from the wheel D on the shaft E. The
shaft E has a slow intermittent revolving motion imparted to it by means
of the ratchet lever F, to which an up-and-down motion may be imparted
by suitable means from the engine or other source of motion. The
shaft E carries an eccentric G, which working in the lever H gives the
necessary forward and backward motion to the plunger I. The motion
of the plunger must of course correspond to the revolution of the plug.
K is a glass guage which indicates the height of the lubricant in the
tank.
Fig. 6 shews a convenient arrangement of my Invention applied as a
pump for feeding boilers or for other purposes. The pump barrel A. is
connected to the plug case B by means of the pipe C, and the necessary
motion is obtained from the revolving shaft D, which by means of the

page_text: eccentric E gives an upward and downward motion to the plunger, and
by means of the bevil wheels F gives a revolving motion to the plug.
In some cases it may be more convenient to give the plug a reciprocating
motion instead of a continuous revolving motion.
In witness whereof, E, the said Thomas Butterworth, have hereunto 5
set my hand and seal, this Twenty-sixth day of February, in
the year of our Lord One thousand eight hundred and sixty-
nine..