Improvements in Instruments for Renovating, Facing, or Repairing the Seats, Bearings, and Valves of Valves and Cocks.
Year: 1893

page_text: Date of Application, 3rd Aug., 1893
Complete Specification Left, 3rd May, 1894-Accepted, 7th July, 1894
PROVISIONAL DI MUIFICATION.
Improvements in Instruments for Renovating, Facing, or Repairing
the Seats, Bearings, and Valves of Valves and Cocks.
I, ROBERT WILLIAM ANDERSON, of 93, Mulgrave Street, Liverpool, in the
County of Lancaster Engineer do hereby declare the nature of this invention to be
as follows:-
This invention has for its object to provide a simple instrument or tool for
repairing or renovating the seats, bearings, and valves, of cocks and valves, such for
instance as stop-cocks, screw-down valves, ball-valves, taps of various kinds, and
other analogous cocks and valves.
For renovating, facing, or repairing seats or bearings of cocks, valves, and taps,
certain parts are employed, whilst for renovating or repairing the valves or plugs,
some of these parts are removed and other parts substituted therefor.
In an instrument constructed according to this invention, there is employed a
central tool actuating spindle, to the lower end of which the tool is attached.
Outside this, and concentrically thereon is a hollow externally screwed tube,
spindle, or shaft, and the inner tool spindle is adapted to have longitudinal
movement within this outer tube or shaft, as well as rotary movement. On the
outer shaft there is provided a boss or sleeve which carries arms, such arms being
hinged thereto and adapted to move up to and away from the axis of the
instrument about their points of support, the lower end of such arms being
provided with means, or so formed as to be capable of being securely held or
fastened to the tap or cock, and to so hold the instrument firmly in position. This
connection may in the case of an ordinary screw-down or other valve be effected at
the neck thereof to the threaded joints. This is for repairing or renovating the
valve seat or bearing. When, however, the instruments being used are for
repairing valves, different forms of arms or levers are used, namely, they are of
such construction that the valves will be held thereby when being operated upon.
(Where different kinds of valves, cocks or taps have to be operated upon by the
instrument, different kinds of arms or levers will be employed to make the required
connection or fixing or attachment.)
ог
For operating the arms in one direction, and for the other, screwed nuts are used
on the hollow externally threaded shaft below and above the boss or sleeve above
specified, and by turning either of these nuts up or down the desired actuation of
the holding arms or levers are effected and they are held firmly up to the part to
which they are to be attached.
The sleeves or bosses which support the holding arms or levers may be adjustably
mounted on the external screwed spindle.
The feeding of the tool spindle forward and backwards is effected by a nut
fitting on the outer shaft and engaging a projection or piece loosely mounted on the
tool spindle.
.
The rotation of the tool is effected by a wheel or handle mounted upon the end or
upper part of the tool-holding spindle.
The tools may be fastened on the tool holder by screwing same on, or by other
fastening means, or in any suitable way, and for the various purposes to which the
invention may be put, they will be made of different forms and shape.
Dated this 2nd day of August 1893.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.

page_text: Improvements in Instruments for Renovating, Facing, or Repairing
the Seats, Bearings, and Valves of Valves and Cocks.
I, ROBERT WILLIAM ANDERSON, of 93, Mulgrave Street, Liverpool, in the
County of Lancaster, 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 :-
This invention has for its object to provide a simple instrument or tool for
repairing or renovating the seats, bearings, and valves, of cocks and valves, such for
instance as stop-cocks, screw-down valves, ball valves, taps of various kinds, and
other analogous cocks and valves.
For renovating, facing, or repairing seats or bearings of cocks, valves, and taps,
certain parts are employed, whilst for renovating or repairing the valves or plugs,
some of these parts are removed and other parts substituted therefor.
In an instrument constructed according to this invention, there is employed a
central tool actuating spindle, to the lower end of which the tool is attached.
Outside this, and concentrically thereon is a hollow externally screwed tube,
spindle, or shaft, and the inner tool spindle is adapted to have longitudinal
movement within this outer tube or shaft, as well as rotary moveinent.
On the
outer shaft there is provided a boss or sleeve which carries arms, such arms being
hinged thereto and adapted to move up to and away from the axis of the
instrument about their points of support, the lower end of such arms being
provided with means, or so formed as to be capable of being securely held or
fastened to the tap or cock, and to so hold the instrument firmly in position. This
connection may in the case of an ordinary screw-down or other valve be effected at
the neck thereof to the threaded joints. This is for repairing or renovating the
valve seat or bearing. When, however, the instruments being used are for
repairing valves, different forms of arms or levers are used, namely, they are of
such construction that the valves will be held thereby when being operated upon.
(Where different kinds of valves, cocks or taps have to be operated upon by the
instrument, different kinds of arms or levers will be employed to make the required
connection or fixing or attachment.)
For operating the arms in one direction, and for the other, screwed nuts are used
on the hollow externally threaded shaft below or above or below and above the
boss or sleeve above specified, and by turning either of these nuts up or down the
desired actuation of the holding arms or levers are effected and they are held firmly
up to the part to which they are to be attached.
The sleeves or bosses which support the holding arms or levers may be adjustably
mounted on the external screwed spindle.
The feeding of the tool spindle forward and backwards is effected by a nut fitting
on the outer shaft and engaging a projection or piece loosely mounted on the tool
spindle.
The rotation of the tool is effected by a wheel or handle mounted upon the end
or upper part of the tool-holding spindle.
The tools may be fastened on the tool holder by screwing same on, or by other
fastening means, or in any suitable way, and for the various purposes to which the
invention may be put, they will be made of different forms and shape.
An instrument having the main characteristics and parts above generally described
is illustrated in the drawings hereto annexed.
In these drawings,
Figure 1 is an elevation of the instrument provided with parts for renovating or
refacing seats or bearings of cocks and valves; whilst Figure 2 shews the

page_text: or plugs.
Figure 3 and Figure 4 are details in section connected with the feeding up of
the tools.
Figure 5 is a plan of one form of tool used for renovating valves and plugs, and
shewn in elevation in Figure 2.
Figures 6, 7, and 8 shew modifications of parts of the instrument.
Figures 9 and 10 shew a modified form of tool for renovating the faces of
valves.
Figure 11 shows another modified form of tool for renovating the faces of
valves.
Referring now to the drawings, and more particularly to Figures 1, 3 and 4,
a is an outer threaded shaft constituting the main shaft of the instrument, it being
provided externally with a thread as shewn, and hollow throughout; and at a¹ it is
provided with a longitudinal slot. b is the spindle by which the tool is carried, it
being disposed and adapted to revolve within the hollow shaft a. This spindle is
fed up and down within the shaft a by a clutch or clip device c, one end of which
works or lies within a groove in the shaft b, and the other within the hollowed out
central portion of the nut d, which works up and down on the outer thread of
the shaft a.
e is the handle on the upper. end of the shaft by which it is
rotated, and is the tool on the lower end of same. These parts are similar to
those used in an ordinary drilling machine having an internal rotating tool
spindle and an external screwed shaft for feeding the tool up to and away from
the work.
The means by which the shaft a is supported or fixed in relation to the article
to be operated upon by the tool, consists of the levers or arms h, hinged and
mounted, by movable hinge pins i, on a hub k on the shaft a, said hub being
provided with an internal thread fitting, and working on the shaft a as a nut, a
jamb nut being provided to fix the hub at any point on the shaft a required.
The levers shewn in Figure 1 are stepped, and the edges of the said steps may
be provided with portions of a thread to fit in the internal threads in the top of
the valve case opening above its valve seat, when used for repairing the face
of such seat; and accordingly as different sizes of valves are operated upon,
the different parts or steps of said levers would be engaged with the said valve case
opening thread.
A
The extension outwards and on to the internal thread of the valve case opening
is effected by the nut m, which is worked up and down the shaft a, and part of
which comes in contact with the inside edges of the levers h in this action.
modified mode, however, may be employed by employing a nut above the hub k
and extending the levers has shewn in Figure 2 (or in the manner shewn in
dotted lines), the movement of the levers below the hub being effected by the
end of the arm being engaged with a part of the nut m when rotated upon
the shaft a.
In action, in the case of the instrument shewn in Figure 1, the valve case, the
face of the seat of which is to be renovated or operated upon, is so placed that
the internal threaded portion in the opening above the valve seat, engages with
the outer edge of the levers h, and is securely held thereto by screwing the nut m
so as to force the levers against said threads. When this is done, the shaft band
tool fare fed down to the right position in relation to the seat to be faced, by
turning the feed nut d, by which, through the device c, the shaft bis moved longi-
tudinally downwards within the shaft a. The tool is then rotated by turning the
handle d, and if further feeding downwards is required, the feed nut d is worked
further down the shaft a.
Referring now to Figure 2, the nut m is
which a part of the upper end of the levers
nut works in connection with another part of
instrument being for holding valves for the
provided with a recess underneath in
work, whilst the upper part of said
said levers end. The levers of this
renovation of their seat faces, their

page_text: lower parts are pressed inwards by the nut n when securing the valve in place in
the instrument; and to enable different sizes and sorts of valves to be grasped and
held, the arms or levers are provided with adjustable parts /', having a nose h
on the end thereof, the parts h¹ being adapted to slide in an aperture in the end
of the levers h, and held at any desired part by screwed set pins h³. The parts h¹
are also provided with scales as shewn, so that the same adjustment in each of
them can be readily made; while the edges in contact with which the set pins /³
come, are provided with conical holes placed at the required distances apart, in
which the ends of the set pins which are conical-enter.
In some cases the nose pieces may be loose and adapted to revolve on the end
of the parts has shewn in Figures 6 and 7. And if said nose piece faces are
of different formation, at different parts, for instance as shewn, they may be adapted
to grasp different kinds of valves by the said different parts or formations being
turned uppermost or otherwise, as may be best.
A modification of means for adjusting the parts in the levers his shewn in
Figure 8, and consists of a worm which meshes with the upper edge of the
part ', which is provided with threads; and by turning the worm, the parts /' can
be worked in or out as required.
The modified form of tool for facing valves, shewn in Figures 9 and 10, is
provided with a slot as shewn, which fits over the end of the shaft b, and is held
thereon by a nut screwing on to the lower end of said shaft as shewn.
The tool shewn in Figures 2 and 5 is secured to the shaft by screwing the
boss on the end thereof; and the cutting part f is mounted on the bell crank
shaped part f, which slides to and fro on the extended part f' on the boss f', it
being worked to and fro by the thumb screw f', the screwed part of which works
in the horizontal part of the piece ƒ³.
The tool shewn in Figure 11 consists of annular cutters f, which may be of
different sizes, held in the carrier f¹ by screwing same into the ring f' thereof,
the said carrier being fastened or fixed to the shaft d by screwing same on to the
end thereof.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In an instrument for renovating, facing, or repairing the seats, bearings, or
faces, and valves, of valves and cocks, the combination with a hollow external
threaded shaft and an internal tool rotating shaft, of levers, as h, hinged in a
suitable carrier on said external shaft, and adapted to be pressed outwards or
inwards or both outwards and inwards-by a nut working up and down on said
shaft, or equivalent device, and engaging with the said levers; substantially as
herein set forth.
2. In an instrument for renovating, facing, or repairing the seats, bearings, or
faces, and valves, of valves and cocks, the combination with a hollow external
threaded shaft, of levers as h, hinged on a carrier k on said external shaft,
said carrier being adapted to be adjusted on said screwed shaft by an internal
thread therein working on the thread of said shaft; substantially as set forth.
3. In an instrument for renovating, facing, or repairing, the seats, bearings, or
faces, and valves, of valves and cocks, the combination with a hollow external
threaded shaft, of the feeding device for the inner shaft consisting of a device c
working in connection with said inner shaft, and the feeding wheel nut d; substan-
tially as set forth.
4. The instrument having its parts constructed combined and adapted to operate
particularly as set forth with reference to and as shewn in Figure 1 of the
drawings.
5. The instrument having its parts constructed combined and adapted to operate
particularly as set forth with ieference to and as shown in Figue 2 of the
drawings.

page_text: 6. In an instrument of the type herein described, the combination of hinged
arms, as h, having adjustable portions h¹; substantially as set forth with reference
to Figures 2, 6, 7, and 8 of the drawings.
Dated this 2nd day of May 1894.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.