Improvements in Tools for Operating upon Valve Seats.
Year: 1890

page_text: Date of Application, 16th Dec., 1890
Complete Specification Left, 9th July, 1891-Accepted, 15th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Tools for Operating upon Valve Seats.
I, JAMES MURPHY of No. 171 Seigel Street in the City of Brooklyn, County of
Kings and State of New York United States of America, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to an improvement in tools for operating upon valve seats,.
and more particularly to tools adapted to operate upon the valve seat without
removing the valve from its position in a line pipe.
In carrying out my invention, I provide a tool-supporting socket piece, with an
exterior inverted end adapted to fit within the threaded opening in which the cap
of the valve chamber is commonly secured. To this end, socket pieces having
threaded extensions of different diameters, corresponding to the standard sizes of
openings, may be provided, each socket piece having an interior bore for the
reception of a tool of the same size, and also provided with a seat for the feed
screw frame, and a threaded portion for the reception of a frame-securing nut.
A simple U-shaped frame is provided, one branch of which is intended to fit a
seat upon the socket-piece, & the other to support a feed-screw, for the purpose of
forcing the cutting tool into contact with the valve seat.
The feed screw is provided with a wheel for operating it and with a jam nut as is
common for locking it in the desired adjustment.
The shank of the tool has an easy sliding and rotary fit within the opening in its
socket and the upper end of the shank of the tool is conveniently squared for the
reception of a ratchet wrench of well known or approved construction.
The operation of the device is as follows:-
The shank of the tool is inserted within the socket piece and the socket
piece is then screwed into the opening in the valve casing. Either before or
after adjusting the socket piece to the valve casing, the lower branch of the frame
is slipped over the top of the socket piece down on to its seat and is there
secured by means of a nut. The feed screw is then turned down into engagement
with the top of the tool shank, forcing the cutting face of the tool into contact with
the valve seat to be worked upon. The ratchet wrench is then applied to the
head of the tool and the latter rotated. As fast as the tool cuts its way the
feed screw may be forced into cutting contact with it to hold it in cutting
contact.
It will be observed that the device is a simple one and that it is capable of
being employed in corners of rooms or where the line pipe runs in close proximity
to one or more surfaces, the swing of the frame and the small traverse diameter
of the device admitting of its use without removing the valve casing from the
pipe.
Dated this 16th day of December 1890.
NEWTON & SON,
Agents for the Applicant

page_text: .
COMPLETE SPECIFICATION.
Improvements in Tools for Operating upon Valve Seats.
I JAMES MURPHY of No. 171 Seigel Street, in the City of Brooklyn, County
of Kings, and State of New York, United States of America, 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 :-
My invention relates to an improvement in tools for operating upon valve seats,
and more particularly to tools adapted to operate upon the valve-seat without
removing the valve from its position in a line pipe.
A practical embodiment of my invention is represented in the accompanying
drawing, in which
Fig. 1 represents the tool in position for use, a portion of the tool-support being
broken away to show the position of the tool therein; and
Fig. 2 is an end view.
In carrying out my invention, I provide a tool-supporting socket piece with an
exterior inverted end adapted to fit within the threaded opening in which the cap
of the valve chamber is commonly secured. To this end, socket pieces having
threaded extensions of different diameters corresponding to the standard sizes of
openings may be provided, each socket piece having an interior bore for the
reception of a tool of the same size, and also provided with a seat for the feed
screw frame, and a threaded portion for the reception of a frame-securing nut.
A simple U shaped frame is provided, one branch of which is intended to fit a
seat upon the socket piece, and the other to support a feed screw for the purpose of
forcing the cutting tool into contact with the valve-seat.
In the form which I have chosen to illustrate my invention, A represents the
valve chamber, across which a diaphragm a extends. The diaphragm a is provided,
as usual, with an opening around which the valve-seat a' is located. The interior
threaded opening for the reception of the cap of the valve chamber is represented
by a³.
B represents the socket piece provided at its lower end with an external screw-
threaded projection b, adapted to register with the opening a² of the valve chamber.
Above the threaded extension b, the said socket piece is provided with a seat b', for
the reception of the perforated lower branch c of the feed-screw supporting frame C.
The opening in the branch c of the supporting frame C, is intended to be sufficiently
large to admit of the adjustment of the branch cover the top of the socket-piece,
and down on to its seat, and the said branch is intended to fit upon the socket
piece sufficiently loose, so that the frame may be swung around to accommodate
itself to different positions in which the valve casing secured to the line pipe, may
be locked. Above that portion which is surrounded by the branch c, the socket
piece B is provided with an external screw-threaded portion 6, adapted to receive
a nut for securing the frame in position on its seat.
The upper branch c¹ of the frame C is also perforated for the reception of a
feed screw D, in the line of the longitudinal axis of the opening in the socket B.
The feed screw D is provided with a wheel d for operating it, and with a jamb nut d',
as is common for locking it in the desired adjustment.
The shank of the tool is represented by E, and its cutting face by e. It is
intended that its shank shall have an easy sliding and rotary fit within the opening
in the socket B. The upper end of the shank of the tool is conveniently squared,
as shown at e, for the reception of a ratchet wrench F, of well known or approved
construction.
For the purpose of adjusting the socket piece B hereinbefore referred to, within
the opening a in the valve casing, I provide the said socket piece with a squared
portion to receive the jaws of a wrench.

page_text: The operation of the device is as follows :—
The shank E of the tool is inserted within the socket piece B, and the socket
piece is then screwed into the opening a' in the valve casing. Either before or
after adjusting the socket piece to the valve casing, the lower branch c of the
frame C is slipped over the top of the socket piece down onto its seat, and is there
secured by means of a nut 63. The feed screw D is then turned down into engage-
ment with the top of the tool shank E, forcing the cutting face e of the tool into
contact with the valve seat to be worked upon. The ratchet wrench F is then
As fast as the tool cuts
applied to the head e¹ of the tool, and the latter rotated.
its way, the feed-screw D may be forced into contact with it, to hold it in cutting
contact.
It will be observed that the device is a simple one, and that it is capable of
being employed in corners of rooms, or where the line pipe runs in close proximity
to one or more surfaces, the swing of the frame C, and the small transverse
diameter of the device, admitting of its use without removing the valve-casing from
the pipe.
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 I
claim is
1. The combination with a tool-holding socket adapted to engage a valve casing
opposite the seat to be worked upon, of a frame secured to the socket piece at one
end in rotary adjustment, and provided with a feed screw at its opposite end in
position to force the tool to its work, substantially as set forth.
2. The combination with a tool-holding socket having a threaded projection to
engage the opening in the valve casing opposite the valve seat, and further provided
with a seat for the reception of one end of a feed-screw supporting frame, and with
a screw-threaded portion for the reception of a nut to hold the feed-screw supporting
frame in position, of a feed-screw supporting frame, one end of which is adapted to
embrace the socket-piece, a feed-screw support in the opposite end of the supporting
frame in position to force the tool to its work, and a nut to secure the supporting
frame in position, substantially as set forth.
Dated this 9th day of July 1891.
NEWTON & SON,
Agents for the Applicant.