A COMBINED CHECK VALVE AND PLUG COCK to be as follows:
Year: 1885

page_text: I, THOMAS MURPHY of number 19 Fairfoot Road, Bow, London, E, in the County
of Middlesex, Brassfounder do hereby declare the nature of my invention for
"A COMBINED CHECK VALVE AND PLUG COCK to be as follows:-
"
:
My Invention comprises a simple device whereby I am enabled to combine as
one appliance an apparatus or contrivance, which shall be capable of performing
with facility the twofold functions of an ordinary plug cock and of a valve.
Said Invention consists in disposing centrally and vertically, within a plug cock,
a spindle valve, the top of said stem or spindle taking into a recess formed in the
cap or cover of the valve cock and having the necessary amount of play or travel
therein. The valve itself takes its bearing in a recess or seating formed in the
interior of the hollow plug within the surrounding shell or casing; such seating
or recess being, in the cases where the device according to my Invention is applied
as a feed valve for steam boilers, below the bottom of the passage way or exit
from the hollow plug; and on the other hand, when the contrivance according
to my Invention is used for marine purposes, as a sea cock, the valve seating
aforesaid would be formed at a short distance clear of the top of the passage way
or exit last mentioned.

page_text: I THOMAS MURPHY, of number 19, Fairfoot Road, Bow, London, É. in the county
of Middlesex, Brassfounder 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 comprises a simple device whereby I am enabled to combine as
one appliance an apparatus or contrivance, which shall be capable of performing
with facility the twofold functions of an ordinary metal full bore and round way
plug cock, and of a check and stop valve.
Said invention as applied to check valve and plug cock, consists in disposing
centrally and vertically within a hollow plug cock (Drawings N° 1 and N° 2.) a
spindle valve, the top of said stem or spindle taken or received into a recess formed
in the cap or cover of the hollow plug, and having the necessary amount of play or
travel therein, the valve itself takes its bearing in a recess or seating formed in the
interior of the hollow plug within the surrounding shell or casing, such seating
herein after called valve seating being screwed within the hollow plug, can be
removed at will without displacing the plug.
Where the device according to my invention is applied as a feed valve for steam
boilers (Drawing N° 1) the inlet passage being vertical, the outlet horizontal and
above the inlet, the valve and seating is placed at the bottom of the hollow plug
just below the outlet port. Where the device is applied as a check and stop valve
(Drawing N° 2.) with axis of the inlet and outlet horizontal and in line, and the
bottoms of the shell and hollow plug stoped or solid, the inlet port in the side near
the bottom and the outlet port in the side of and near the top of the hollow plug,
the valve seating is in this case placed central between the ports, above the inlet,
and below the outlet.ports.
In both cases (N° 1 and N° 2) the valve can be made with loose spindles (as in
drawings) recessed into the cap or cover, or with short spindles recessed into
screwed spindles.
Where my device is applied to a screwed down valve only, and plug cock, as in
N° 3 drawing with inlet and outlet horizontal their axis in line, and the plug cock
solid bottomed, the valve seating is in this case a fixture within the hollow plug
contained between, two parallel plains cutting obliquely from the top and above
the outlet port on one side, to the bottom of and below inlet port on the other side
of the hollow plug. The valve here is of asbestos secured to an oval shaped cover,
which cover follows the valve seating and is slightly flattened at the upper end to
permit its withdrawal from the plug, on the upper side of the valve cover is a
vertical spindle which is received into the cup or recess of the screwed spindle and
carried by means of a set screw in the cup and a groove in the valve spindle, the
aforesaid screwed spindle passing through cap or cover of hollow plug and being
fitted with stuffing box and hand wheel.
In all cases the cocks can be made with one or more passage ways.

page_text: N° 1, AND N° 2, DRAWINGS.
A. The shell or outer casing.
"
hollow plug.
C.
D.
»
"2
2 2 :
PROACHE
F.
H.
"
"
"
K.
"
"
"
"
metal valve.
removable seating.
gland.
flange with lugs.
cap screwed on top of plug.
spindle of valve.
inlet.
recess in cap for lift of valve.
lug for turning plug.
outlet.
connecting flanges, connections can be made with flanges, or with
Inale or female screws.
Small, a. The stud nut for securing gland on hollow plug.
b.
>>
stud.

page_text: of the plug is then to be unscrewed; the valve withdrawn, and if necessary the
valve seating to be unscrewed by a forked key and withdrawn also. The valve
and valve seating can then be examined and repaired or replaced with new as may
be necessary.
"
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 clame is
1 The placing or insertion of a check or stop valve with removable valve
seating within a hollow plug cock.
2nd The placing or insertion of an oblique stop valve within a hollow plug cock,
3rd The adaptation or application of asbestos to a valve in a bollow plug cock.
Tinted this 10th dow of Mov 1000