Improvements in Guage Cocks.
Year: 1887

page_text: Date of Application, 17th May, 1887.
Specification Accepted, 17th June, 1887.
[Communicated from abroad by DUGALD HARVEY ROBERTS, Engineer, and WILLIAM
DOBIE MCRAE, Gentleman, both of the Village of Wallaceburg, in the County
of Kent, in the Province of Ontario, Canada.]
Improvements in Guage Cocks.
I, ALFRED JULIUS BOULT of 323 High Holborn in the county of Middlesex,
M.I.M.E. 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 :-
The invention relates to that class of guage cocks in which the passage-way leading
to the boiler is closed by means of a hinged weighted handle having a seat formed of
rubber-packing or similar material suitable for making a steam and water tight
joint; and the object of this invention is to provide means by which the said packing
may be changed when worn out without difficulty and when a full head of steam is
on. The invention consists essentially in forming two or more seats on the face of
the head hinged to the guage cock and adjustably connecting it to the cock so that
either of the seats may be utilized for closing the passage-way in the cock during the
period that the packing in the other seat is being changed, substantially as hereinafter
more particularly explained.
Fig. 1 is a sectional side elevation of this double-seated guage cock.
Fig. 2 is a plan of the same.
Fig. 3 is a perspective detail of the handle exposing the seats.
Fig. 4 is a perspective detail of the portion of the cock which screws into the
boiler.
Fig. 5 is a perspective detail of a block used for the purpose of holding the handle
in the desired position.
A represents the portion of the cock which screws into the boiler.
D
L
ninating and of the cook on which the bearing is formed

page_text: E is the passage-way through the cock A.
Two recesses I are made in the face of the head G. Each of these recesses I is
designed to contain a piece of packing F made of rubber or other suitable material
and forming a seat by which the passage-way E may be closed. At the top of each
of the recesses I, it is preferable to make a passage-way H through the head G for
the purpose of permitting the insertion of the packing F.
A lug J is formed on the head G which lug has a hole in it through which the pin
or spindle D passes, thereby hingeing the head G to the cock as indicated.
The weighted handle K is connected to or forms part of the head G and is made
sufficiently heavy to resist the pressure of the steam when the head G is seated on the
projecting end B as indicated in figure I.
It will be noticed that the lug J is sufficiently narrow to permit the head G to be
moved across the face of the projecting end B. It therefore follows that either of the
seats may be brought opposite to the passage-way E so that the packing F in either
of the recesses I may be utilized for the purpose of closing the passago-way E.
It is preferable to use a block L to fit onto the pin Dans block L is preferably con-
the lug J and the jaw C farthest from the said lug. This block
nected to the cock A by a chain M.
the space between
From this description it will be seen that it is merely necessary for the purpose of
changing the packing, F when it is worn out or otherwise requires changing to move
the head G so as to carry the said piece of packing away from the passage-way E
and bring the piece of packing in the other recess opposite to the said passage-way
thereby forming the required joint with the fresh piece of packing and bringing the
old piece of packing in such a position that it can be readily removed and a fresh
piece inserted in its place.
Having now particularly described and ascertained the nature of the said invention,
as communicated to me by my foreign correspondent, and in what manner the same
is to be performed, I declare that what I claim is :-
1. A guage cock A with a passage way E formed in it in combination with a head
having two or more seats formed on its face and adjustably connected to the cock A so
that either of the seats may be utilized for the purpose of closing the passage-way
substantially as and for the purpose specified.
E
2. The head G having the recesses I formed on its face to receive the packing F
in combination with a lug J formed on the head G and pivoted on the pin or spindle D
carried by the jaws C formed on the cock A substantially as and for the purpose
specified.
3. The head G having the recesses I formed on its face, a passage way H to
receive the pieces of packing F which fit into the recesses I in combination with the
lug J formed on the head G and pivoted on the pin or spindle D carried by the jaws C
formed on the cock A, substantially as and for the purpose specified.
4. The head G having the recesses I formed on its face to receive the packing F
and the lug J to pivot on the pin or spindle D in combination with the block L
designed to fit on the pin or spindle D between the lug J and jaws C substantially as
and for the purpose specified.
TA: 17th L- LM 1007