Year: 1886

page_text: Date of Application, 10th July, 1886.
Complete Left, 7th Apr., 1887.
Complete Accepted, 10th May, 1887.
I, JOSEPH JOHN TYLOR, of 11 Little Queen Street, in the City of Westminster,
Civil Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in that class of meters for measuring water
and other liquids, for which Letters Patent were granted to me, bearing date the
22nd February A.D. 1883, No. 968, which improvements are intended to overcome
certain difficulties and defects in the design and construction of such meters, and to
simplify the manufacture and working thereof.
Instead of employing plug cocks working in the end, chamber of the meter as
shewn and described in the Specification of my aforesaid Patent I prefer to employ
flat valves situated at, or near the centre of the side of the meter; and in order to
guide the movements of these valves, and also to keep them in contact with their seats
even when the pressure of water is at a minimum 1 provide revolving guide rollers
mounted on weighted levers, which rollers bear against and revolve in suitable grooves
formed on the backs of the said valves.
In order to ensure the steady working of the pistons or plungers, I prefer to
dispense with the guide for the piston-rod or stem as shewn and described in the
Specification of my aforesaid Patent, and to make the pistons or plungers of the same
diameter at each end, the above described flat valves being operated from the central
portion of the piston rod.
I also prefer to make one of the cylinders shorter than the other, the piston or
plunger of which will have a correspondingly shorter stroke, the registering mechanism
of the meter being operated by the piston or plunger which has the longer stroke.
I am thus enabled to cheapen the construction and reduce the size of the meter.

page_text: I make the pistons or plungers hollow and of hardened indiarubber or imitation
horn as described in my aforesaid Specification but I prefer to make them to fit the
cylinders easily and I furnish them with cup leathers fitting closely to the cylinders.
By this combination I avoid the liability of the hardened indiarubber pistons sticking
in the cylinders and I also prevent leakage of any water past the piston when a small
quantity only is being passed through the meter while at the same time I retain the
advantages of lightness, freedom from noise, and quickness of action without shock.
Dated this 10th day of July 1886.
J. J. TYLOR.
Per W. H. Beck,
115, Cannon Street, London,
Agent.

page_text: I, JOSEPH JOHN TYLOR, of 11 Little Queen Street, in the City of Westminster,
Civil Engineer 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, reference being had to the accompanying sheet of drawings,
and to the letters and figures marked thereon, that is to say :-
This invention relates to improvements in that class of meters for measuring water
and other liquids for which Letters Patent were granted to me bearing date the
22nd February A.D. 1883 No. 968, which improvements are intended to overcome
certain difficulties and defects in the design and construction of such meters, and to
simplify the manufacture and working thereof.
In the Drawings hereto annexed Figure 1 is a longitudinal section of a liquid meter
constructed in accordance with my invention. Figure 2 is a transverse sectional
elevation on line 1-1 of Figures 1, 3 and 4. Figure 3 is an elevation taken at the
outlet side of the meter, and Figure 4 a partial elevation taken at the inlet side of
same. Similar letters of reference relate to like parts in all the figures of the
drawing.
Instead of employing plug cocks working in the end chamber of the meter as shewn
and described in the specification of my aforesaid patent, I employ according to my
present invention, flat valves situate at, or near the centre of the side of the meter;
and in order to guide the movements of these valves, and also to keep them in contact
with their seats, even when the pressure of water is at a minimum, I provide revolving
guide rollers mounted on weighted levers, which rollers bear against, and revolve in,
suitable grooves formed on the backs of the said valves.
Referring to the drawings, A and B are the two cylinders of the meter, placed
preferably one above the other, and having a chamber Copening into the said cylinders A
and B at about the middle of their lengths. The cylinder A contains two pistons or
plungers A¹ A2 connected together by the rod or stem A³. The cylinder B similarly
contains two pistons or plungers B¹ B2 connected together by the rod or stem B³.
These pistons move independently of each other, but each piston actuates the valve by
which the motions of the other piston are regulated as is now well understood in con-
nection with liquid meters of this kind. D is the inlet passage for liquid to the meter,
opening into the chamber C. E is the outlet passage for liquid from the meter.
Communicating with this passage E are two branch pieces F, G, the upper ends of
which terminate in three-port valve faces F¹ G', over which the slide valves H and I
respectively travel. The passages F2, F³, lead from the valve face F¹ to the corre
sponding ends of the cylinder B and the passages G2 G3 lead from the valve face G¹
to the corresponding ends of the cylinder A in the manner now well understood. The
passages and G both lead from their respective valve faces F G to the outlet
passage E. The slide valves H and I which are of the ordinary D construction, are
extended longitudinally beyond their seatings F1 and G³ so as to enable them to be

page_text: moved back and forth by the pistons. That is to say the valve H is moved to the
right by the piston A¹ pushing directly against one end of the valve A¹ and to the left
by the piston A2 pushing similarly against the other end of the valve. The valve I
is moved to the right by the piston B¹ and to the left by the piston B². The move-
ments of the valve H regulate the motions of the pistons B1 B2, and those of the
valve I regulate the motions of the pistons A' A². H' and I' are the guide rollers
mounted on weighted lovers H2 and 12 and taking into grooves on the back of the
valve H and I as shown whereby the said valves H and I are guided and kept in
contact with their seats.
In order to ensure the steady working of the pistons or plungers, I prefer to
dispense with the guide for the piston rod or stem as shown and described in the
specification of my aforesaid patent, and to make the pistons or plungers of the same
diameter at each end, as shown in Figure 1.
I also prefer to make one of the cylinders, B for example, shorter than the other,
the piston or plunger of which will have a corresponding shorter stroke (in fact only
just sufficient to move the valve I the necessary distance) the registering mechanism
of the meter being operated by the piston or plunger which has the longer stroke;
I am thus enabled to cheapen the construction and reduce the size of the meter.
I make the pistons or plungers hollow and of hardened india-rubber, or imitation
horn, as described in my aforesaid specification; but I prefer to make them to fit the
cylinder easily, and I furnish them with cup leathers A* and B* fitting closely to
the cylinders as shown in Figure 1. By this combination, I avoid the liability of
the hardened indiarubber pistons to stick in the cylinders; and I also prevent leakage
of any water past the piston, when a small quantity only is being passed through the
meter; while at the same time I retain the advantages of lightness, freedom from
noise, and quickness of action without shock.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, 1 declare that what I claim is :-
First In liquid meters of the kind hereinbefore referred to, the employment of flat
slide valves, guided and kept to their seats by guide rollers, as herein before described,
and illustrated in the Drawings hereto annexed.
Second-In liquid meters constructed in accordance with the first claim clause
hereof making that one of the cylinders the piston or plunger of which does not act
upon the registering mechanism, of such a length as will limit the travel therein of
its piston to a distance sufficient, or thereabouts, to move the slide valve operated by
the said piston to the extent necessary to open and close the ports for the admission
and release of the liquid to and from the piston or plunger which acts upon the
registering mechanism, as hereinbefore described, and illustrated in the Drawings
hereto annexed.
Third In liquid meters of the kind hereinbefore referred to, the combination of
cup leathers with pistons or plungers of hardened indiarubber or imitation horn, as
hereinbefore described, and illustrated in the Drawings hereto annexed.
Dated this 7th day of April 1887.
Dated this 7th day of April 1887.
J. J. TYLOR.
Per W. H. Beck,
115, Cannon Street, London, E.C.,
Agent.