Improvements in or relating to Engines for Pumping Up Beer or other Liquids.
Year: 1895

page_text: Date of Application, 10th Oct., 1895-Accepted, 16th Nov., 1895
COMPLETE SPECIFICATION.
Improvements in or relating to Engines for Pumping Up Beer or
other Liquids.
1, FRANCIS HENRY MATHEWS, of 84 Walworth Road, in the County of
London, Pewterer and Beer Engine Manufacturer, 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 :—
This invention consists of improvements in or relating to engines or pumps
employed for pumping up beer and other liquids.
With these engines as hitherto constructed there has been much waste, owing to
the piston rod, when depressed for a fresh stroke (after drawing), forcing a certain
amount of beer, for example, out of the nozzle or spout.
According to my improvements I construct the engine in such a manner that no
liquid shall be lost after drawing when the lever is raised to recharge the
apparatus.
And in order that my invention may be clearly understood, I will proceed to
describe the same with reference to the drawing accompanying this Specification,
which represents a vertical section attached to the top of the pump of an
ordinary beer engine (for example).
a shews the barrel or pump (the lower portion of which is broken off) of a beer
engine constructed in the ordinary way, piston of same, e stuffing box, c¹ piston
rod da sling attached to the lever of the engine, e a red passing up into a chamberf,
which I term the displacing chamber, is the stuffing box of the displacing
chamber f, i an outlet valve, which however may be dispensed with, j outlet from
displacing chamber, & pipe leading to the nozzle or spout, is a pipe connecting
the pump a with the displacing chainber f.
The drawing shews the position that the apparatus would assume when the
handle or lever of the engine is down, and after the beer has been discharged.
The action of the apparatus is as follows:-
Supposing the pump a, pipe h, displacing chamber and pipe (up to the curve
over to the spout) to be charged with liquid; when the handle of the engine is
raised, it will actuate the sling d, which forces the piston b, and rod c' of the same
down into the barrel of the pump a, the beer coming through the valve n, as
indicated by the arrow. In consequence of the rod e passing down into the pump,
an amount of beer equal in volume to the volume of the rod c will be expelled
from the pump up the pipe h. In the case of an ordinary pump, the tube / would
lead direct to the spout, and the amount of liquid displaced by the piston rod c¹
would be forced out of the spout and run to waste; but in the case of my
improvements, the beer displaced passes up the tube h into the displacing chamber,
and since the rod e which is withdrawn from the displacing chamber, as the sling d
moves down, is exactly the same volume as the rod c', the beer displaced from the
pump a is received in the displacing chamber, without any liquid being forced out
of the nozzle. Upon again drawing liquid, when the sling d is raised, the liquid
is forced up from the pump a, through the displacing chamber f, and through the
valve i by the tube k and out of the nozzle or spout.
My improvements-may be fitted to old or existing pumps, or they may be
constructed with or as new pumps,

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 1
claim is :-
1. The improvements in or relating to engines for pumping up beer or other
liquids, substantially as and for the purposes set forth.
2. In engines for pumping up beer or other liquids the use of a displacing
chamber, in combination with a rod passing into same, for the purposes set forth.
3. In engines for pumping up beer or other liquids, the use of an additional rod
and stuffing box, for the purposes set forth.
4. In engines for pumping up beer or other liquids, the general construction and
arrangement of paris, substantially as hereinbefore described and shewn on the
accompanying drawing.
Dated this Tenth dox of October 1905
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.