IMPROVEMENTS IN TAPS, COCKS OR VALVES FOR STEAM WATER AND OTHER LIQUIDS AND 'FLUIDS
Year: 1884

page_text: I DAVID HANCOCK of Stratford in the County of Essex, Gas and Hot Water
Engineer do hereby declare the nature of said invention for "IMPROVEMENTS
IN TAPS, COCKS OR VALVES FOR STEAM WATER AND OTHER LIQUIDS AND 'FLUIDS "
to be as follows:-
The object of my invention is the production of valves very simple in con-
struction but very effective in action and it is almost impossible for the valve to
get out of order. The invention relates to and is an improvement upon an
invention for which Letters Patent were granted to me the 12 August 1882
No 3862.
According to my present invention I cause the water or other liquid or fluid to
enter the tap above the valve instead of below the valve as described in the
Specification of the Patent before referred to whereby the valve is absolutely
prevented from leaving its seating. For this purpose I make the spindle and disc
of different parts and fit the disc on to the spindle which latter in some cases may
be hollowed to receive a spring which tends to press on the disc and to keep the
latter in position. The spindle has a collar which abuts against a washer on the
top of the tap. The disc which thus seats itself on the partition is made with an
aperture and there is a corresponding aperture in the partition as described in the
Specification of my previous patent, but the difference in this case is that the
partition forms a seating for the disc. The partition may consist of a loose or
fixed disc with washer the two having corresponding apertures. The top of the
tap containing the spindle and valve is screwed or otherwise secured to the lower
part containing the partition. Stuffing boxes may be used but in most cases they
are not necessary. The seatings may be flat or coned.
The pressure of the water, steam or other liquid or fluid is always on the top of
the disc consequently the pressure tends to keep the disc on its seating thus
preserving a tight joint and the prevention of leakage of any sort or kind.

page_text: COMPLETE SPECIFICATION.
"
I, DAVID HANCOCK of Stratford in the County of Essex Gas and Hot water
Engincer do hereby declare the nature of said Invention for "IMPROVEMENTS IN
TAPS COCKS OR VALVES FOR STEAM, WATER AND OTHER LIQUIDS AND FLUIDS
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :—
E
The object of my Invention is the production of valves very simple in con-
struction but very effective in action and it is almost impossible for the valve to
get out of order. The Invention relates to and is an improvement upon an
invention for which Letters Patent were granted to me the 12th August 1882.
No 3862. According to my present invention I cause the water or other liquid or 1
fluid to enter the tap above the valve instead of below the valve as described in
the specification of the Patent before referred to whereby the valve is absolutely
prevented from leaving its scating. The invention will be best understood by
reference to the accompanying drawings.
Figure 1 is a view in longitudinal vertical section of a stop cock constructed
according to my Invention. Figures 2, 3, 4, 5, and 6 are views of details of the
valve. Figure 7 shows in side elevation my invention as applied to a bib tap.
Figure 8 shows the invention as applied to a stop cock. Figures 9, 10, 11, 12, 13,
14 and 15 show the invention as applied to a ball valve. Figure 16 shows in
longitudinal vertical section a stop cock similar to that shown at Figure 1 wherein
the stuffing box is dispensed with so that the cock may be used for hot water
Figures 17, 18 and 19 are views in detail of the same. Similar letters of reference
refer to like parts in all the figures.
I make the spindle a and disc b shown detached at Figures 3 and 5 of different
parts and fit the disc b on to the spindle a which latter in some cases may be
hollowed and as shown in the drawings to receive a spring c which tends to press
on the disc b and to keep the latter in position on its seating. The spindle a bas
a collar a¹ which abuts against a washer d on the top of the tap. The disc b which
thus seats itself on the partition is made with an aperture b' and there is a corre-
sponding aperture e in the partition f shown as forming a portion of the lower
casting of the tap as described in the Specification of my previous patent but the
difference in this case is that the partition f forms a seating for the disc b. The
partition may consist of a loose or fixed disc with washer f₁ the two having
corresponding apertures. The top casing y of the tap containing the spindle & and
valve or disc b is screwed as shown at Figure 1 or danged as shown at Figures 7,
8. 9. or otherwise secured to the lower part containing the partition f. Stuffing
boxes may be used but in most cases they are not necessary as for example is the
case in the tap shewn at Figure 16 where the washer d on spindle a is kept up
against the flange g' in the upper casing g by nut h on screwed part of the
spindle a h¹ is a washer between the nut and casing g and turning with the
spindle a. Figure 17 shows the nut detached. Figure 18 shows the washer h¹.
Figure 19 shows the spindle a. The ball valve is also marked with similar letters

page_text: Figure 9 showing the valve complete Figure 10 shows the front part or partition f.
Figure 11 shows the disc b. Figure 12 shows the spindle a and Figure 13 shows
the back part of the casing 'g while Figure 14 shows the ball valve arm i and
Figure 15 shows the aperture in the valve and scating. The seatings may be flat
or coned.
"
The pressure of the water steam or other liquid or fluid is in the direction of the
arrows and always on the top of the disc b consequently the pressure tends to keep
the disc b on its seating thus preserving a tight joint and the prevention of
leakage of any sort or kind.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
=
First In taps cocks or valves the disc or valve 6 for receiving the the pressure
operated by spindlo a spring c and washer d all substantially as and for the
purposes set forth.
Second: The particular arrangement and construction of taps cocks and valves
where the pressure is received on a loose disc and so maintained on its seating all
substantially as set forth.