Improved Means for Inserting Valves in Pipes or Mains.
Year: 1897

page_text: Date of Application, 27th July, 1897-Accepted, 6th Nov., 1897
**COMPLETE SPECIFICATION.
Improved Means for Inserting Valves in Pipes or Mains.
I, CHARLES ARTHUR ALLISON, of 52 Chancery Lane, London, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention (which
has been communicated to me from abroad by Morris Robeson Sherrerd, of
128 Halsey Street, Newark, and David Willis French, of No. 1 Newark Street,
Hoboken, both in the State of New Jersey, United States of America, Engineers)
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
-
The object of my invention is to enable a valve, such, for instance, as a gate
valve, to be inserted in a pipe or main while the latter is under pressure, or in
other words, without stopping the flow of fluid therethrough.
The invention consists in a casing adapted to surround a pipe and having an
opening to permit the passage of a valve that is to be connected with the pipe,
combined with means adapted to connect the valve with the pipe while within the
casing..
!
The invention also consists in a casing adapted to surround a pipe and having
an opening to permit the passage of a valve into the casing; a valve to close said
opening,, and a removable bonnet or cover adapted to contain the first mentioned
valve, and means to connect said bonnet or cover with said casing, combined
with means adapted; to connect the valve with the pipe while within the casing.
The invention also consists in the novel details of improvement, and the com-
binations of parts, that will be more fully hereinafter set forth and then pointed
out in the claims..
Reference is to be had to the accompanying drawings, forming part hereof,
wherein,
Figure 1 is a vertical longitudinal sectional view, showing the improvements
in position on a pipe, also showing a gate valve between the severed ends of the
pipe in position to be clamped therebetween; Figure 2 is a side elevation of
the improvements, looking from the left in Figure 1; Figure 3 is a view similar
to Figure 1, but showing the valve in the final position in the line of pipe; ·
Figure 4 is a plan view of the improvements with the bonnet or cover of the
casing removed; Figure 5 is an edge view, enlarged, of the device; for moving
a sleeve along the pipe toward the valve; Figure 6 is a face view thereof;
Figure 7 is a view corresponding to Figure 1, but showing a pipe cutter in
position to cut out a section of the pipe, Figure 8 is a partly sectional view,
showing the pipe cutter within the bonnet or cover, looking at right angles to
Figure 7 Figure 9 is a view similar to Figure 1, but showing, a differently
shaped casing and other devices for holding a valve between the severed ends of
the pipe; Figure 10 is a vertical cross section through the casing and bonnet
or cover, looking from the left in Figure 9, on the line y, y; Figure 11 is a side
elevation of the casing or box, illustrating the means for applying the latter to
the pipe according to Figure 9, and Figure 12 is a horizontal section, on the
line 4, 4, in Figure 11.

page_text: In the accompanying drawings, in which similar numerals and letters of refer-
ence indicate corresponding parts in the several views, 1 indicates a pipe, and
2 is a casing adapted to be clamped around the pipe and having a chamber 2"
to surround the pipe. Casing 2 is shown divided longitudinally or made in two
parts adapted to be clamped together, portion 2 of the casing being provided
with a flange 2, and portion 2 having a flange 2", said flanges being shown
held together by bolts or screws 2. By this means casing 2 may be readily
clamped upon and removed from the pipe. Casing 2 has end openings and
divided hubs or bells 3, 4, adapted to fit around the pipe, the hubs having annular
recesses to receive lead or packing to make a tight joint upon the pipe, and
hub 4, in Figures 1, 3, 4 and 7, is shown provided with a stuffing box or gland 5,
to make a tight joint, the stuffing box or gland being divided so it can fit around
the pipe. Casing 2 has an extension or branch 6, which is hollow or provided
with a passageway 6, that leads to chamber 2" of the casing. Extension 6 is
shown carried by portion 2d of the casing. Casing is also provided with a
valve to prevent the flow of fluid therefrom at certain times, and for this purpose
casing (or its portion 2) is shown provided with a chamber 7, that communicates
with chamber 2, or passageway 6, and within the chamber 7 a valve 8 is
adapted to travel. Valve chamber 7 is formed, as shown, by casting its walls
integral with the metal of casing 2, or portion 2d thereof, whereby joints are
avoided, although this construction can be altered if desired. Valve 8 is adapted
to engage a seat 9, carried by casing 2, to close the outlet from chamber 2.
Suitable means may be provided for operating valve 8. A rod 10 is shown in
Figures 1, 3 and 7, having a threaded end to engage corresponding threads
carried by valve 8, which rod projects through an aperture in one wall of
chamber 7, and through a stuffing box 11 carried thereby, to make a tight joint
around said rod. Valve S can be operated by this rod. 12, in Figures 1, 2, 3 and 4,
are, threaded, apertures in branch 6", to receive screws that are adapted to press
upon valve 8, to hold it upon seat 9, to enable certain adjustments to be made
as hereinafter explained. I do not confine myself to the arrangement of valve
shown.
Casing 2 is provided with a bonnet or cover 13, which is adapted to close
passageway 6, this bonnet being detachably connected with casing 2, for which
purpose bonnet 13 is shown provided with a flange 15, adapted to fit against a
lange 14 carried by branch 6, said flanges being provided with openings to
receive bolts or screws to enable the bonnet or cover to be firmly connected with
the casing. The chamber of bonnet B is substantially the same area as
passageway 6", and when the bonnet or cover is in position on casing 2 the
chambers 2, 6, 13", become practically one, and constitute the operative chamber
of the casing. The volume or dimensions of the chambers 2", 6", 18", is such as
to admit a valve, such as a gate-valve, 16 within them so that said valve can
travel through said chambers to pipe 1 (see Figures 1 and 3). The volume of
these chambers is such, also, as to receive, and permit the passage and operation
of, a suitable pipe cutting machine to enable it to cut out a section of pipe 1
while within casing 2, so as to leave a space between the severed ends 1b, 1, of
pipe 1, to admit valve 16. In Figures 7 and 8 I have shown a pipe cutting
imachine suitable for the purpose, which may be described as follows:-a is a
frame which is divided crosswise and adapted to be clamped around pipe 1,
within chamber 2" of casing 2. Frame a has two parallel peripheral annular
guide-ways b, c, upon which cutter-carriers or rings d, e, are adapted to be clamped
and rotated. Carriers d, e, have gear teeth d¹, el, adapted to engage a pinion
or gear wheel f, carried by a shaft g, journaled in a yoke or bridge h, carried by
frame a. Shaft g may be rotated direct to rotate carriers d, e, but I have shown
it provided with a gear wheel j that meshes with a pinion j¹, carried by a shaft k
(see Figure 8). Cutters or tools m are shown carried by sliding heads n, guided
in ways o, p, carried by the cutter carriers d, e. To heads are connected star
wheels, by suitable screws, the star wheels being adapted to encounter studs r,

page_text: carried by yoke h or frame a, to feed the tools intermittently as the cutter carriers
rotate. As the cutter carriers rotate around the pipe the two cutters or tools will
be carried around the pipe together to make two cuts in the pipe in parallel planes,
at such a distance apart as to cut out a section 1ª of pipe. Bonnet or cover_13
has a bearing 13b and a stuffing box or packing 13° to receive shaft
and a
bearing 13d and stuffing box 13° to receive shaft . These two shafts being thus
guided and extending parallel keep the pipe cutter from twisting and thus keep
the cut-out section of pipe from turning when it is being raised from pipe 1
with the pipe cutter. s is a head or nut on shaft g, which may rest on the stuffing
box 13, or on interposed washers t, or a tube u, to sustain the pipe cutter when
pipe 1 is cut through, and v is a handle on shaft g by which it and the attached
pipe cutter can be raised within bonnet 13 above valve 8. w is a crank on
shaft for rotating it.
After section 1ª of pipe 1 has been cut out the cutting machine and said section
are to be removed from chamber 2ª of casing 2, and valve 16, is to be inserted in
the space left between the severed ends of pipe 1. For this purpose I provide a
rod or tube 17 which is adapted to pass through opening 13 and stuffing box 13°
of bonnet or cover 13, and from which valve 16 is suspended within
chamber 2, 6, 13. Tube or rod 17, at its lower end, in Figures 1 and 3, is
shown provided with a head 18, which is screwed to the former, and said
head is provided with a threaded aperture 18", to receive a screw 19 for connect-
ing valve 16 with tube or rod 17. To enable valve 16 to be readily moved
sideways toward end 1° of pipe 1, while within chamber 2 of casing 2, I have
shown a movable connection between the valve and tube or rod 17, which is
arranged as follows:-Screw 19 passes through a bar 20, from which depends
a yoke 21, having a way or rail 21 to receive a roller 22, so that the latter can
travel along said way or rail. Roller 22 is journaled on a frame or hanger 23,
that is connected with stem 16%, of valve 16. Frame or hanger 23 is shown
provided with a threaded recess 23", to receive the threaded end 16 of stem 16",
whereby said stem can be readily disconnected from its supports. The threaded
end 16 of stem 16" is preferably similar to screw 19 so that said stem can be
connected direct to head 18 if desired. With the above-described arrangement,
when valve 16 is to be inserted between ends 1b, 1°, of pipe 1, within casing 2,
said valve is placed within bonnet or cover 13 so that roller 22 will be at one
end of way 21, while said way projects therefrom in the direction of end 1° of
pipe 1, as in Figure 1, so that when the valve is lowered between the ends 1b, 1°,
of pipe 1, said roller can travel along said way, to allow the valve to move freely
sideways towards end 1° of pipe 1, as in Figure 3. It is evident, however, that
other means may be provided for allowing valve 166 to move sideways' between the
severed ends of the pipe. If the same bonnet or cover is used with the pipe
cutting machine and with valve 16, opening 13 will be closed or plugged when
the valve is being inserted in the pipe and while shaft is removed.
Tube 17 is of sufficient length to project through stuffing box 13" when valve 16
is in position between the severed ends of pipe 1. In Figures 1 and 3, 24 is a
rod within tube 17 and connected therewith at one end, said rod projecting con-
siderably above tube 17. Rod 24 is screw threaded at 24, above tube 17, to
receive corresponding threads in a bore in a hand-wheel or lever 25, and 26 is
a tube whose bore is sufficiently large to frecly receive tube 17, the tube 26 being
placed around rod 24 and tube 17 and interposed between the stuffing box and
hand-wheel 25. The arrangements above described are a convenient means for
lowering valve 16 into the space between the severed ends of the pipe, as herein-
after explained.
To assure that valve 16 will pass properly between the ends 1b, 1°, of pipe 1,
I may provide a screw or other suitable device, 27, in the wall of extension 6 of
casing 2 (or in the side of the bonnet, according to the proportions of these parts,
or even in the wall of the casing) which screw will be in position to press against

page_text: the valve or its stem to push it over in line with the space between the ends of
the pipe.
Having described how a section of pipe may be cut out and a valve inserted
in its place, all while casing 2 is secured upon pipe 1, it remains to be explained
how the valve is secured between the severed ends of the pipe. For this purpose
I provide a sleeve 30, which is adapted to surround and to travel along pipe 1.
This sleeve, to enable it to be clamped around the pipe while the latter is under
pressure or contains fluid, is divided longitudinally, and provided with
apertures 30, shown located in webs or extensions 31, 31", carried by the respec-
tive portions of the sleeve. The apertures 30ª are adapted to receive bolts or
screws to hold the parts of the sleeve firmly together around pipe 1. In Figures 1
to 7, to allow suitable packing to be placed between pipe 1 and sleeve 30, the
latter is shown of greater diameter than the pipe to be encircled, forming a
space 32 to receive suitable packing 33. Space 32 at the outer end of sleeve 30
is arranged to receive lead or other suitable packing to make a permanent tight
joint between the sleeve and pipe after the sleeve is adjusted to its final position
on the pipe. By preference the inner wall of sleeve 30 is provided with one or
more annular ribs or shoulders 34, 34", which hold sleeve 30 at such distance from
pipe 1 as to produce space 32. Rib or shoulder 34, furthermore, serves as an
abutment or seat for packing 33, and causes the latter to slide along pipe with
sleeve 30, and it consequently acts, by jamming, to make a tight joint between
the sleeve and pipe. Rib 34" serves as a seat or abutment for the packing that
is finally placed around the pipe at the outer end of sleeve 30. In Figures 1
to 7 also, sleeve 30 is adapted to pass through and to slide within stuffing box 5,
the arrangement being such that a sufficiently tight joint can be made between
casing 2 and sleeve 30, to prevent the passage of fluid while permitting the sleeve
to slide along pipe 1 toward valve 16.
Any suitable means may be provided for moving sleeve 30 along pipe 1 toward
valve 16. I have shown, for this purpose, in Figures 1, 3, 4, 5 and 6, a frame or
ring 35, which is adapted to be clamped upon pipe 1, and which is divided or
split crosswise and provided with apertured lugs 35" to receive bolts or screws 36
to clamp it firmly upon pipe 1. Frame or ring 35 is shown provided with threaded
apertures 37 to receive screws 38, which are preferably placed at 90 degrees apart.
Screws 38 are adapted to push sleeve 30 along pipe 1. The inner end of sleeve 30,
in Figures 1, 2, 3, 4 and 7, is adapted to pass within one of the hubs of valve 16,
and as sleeve 30 is of greater diameter than pipe 1, one of the hubs of the valve,
as 39, has a bore sufficiently large to receive said sleeve, while the other hub 39"
is smaller and adapted to properly receive one end (1º) of pipe 1, when valve 16
is pushed toward the latter (see Figure 3).
In Figures 9, 10, 11 and 12, some changes are shown in the manner of operating
sleeve 30 and of holding valve 16 between the severed ends of pipe 1 also in
the arrangement of valve 8, the hubs 3, 4, and other minor details. These are
as follows: Instead of pushing hub 39 of valve 16 over end 1° of pipe 1, a
hub, collar or sleeve 45 is secured upon pipe 1, near its end 1°, so that flange 39b
of hub 39, can press against it, or against an interposed washer or packing (not.
shown.) Hub 45 is divided or split, and provided at one end with an annular
flange 45, and with flanges 45b along the divided edges to receive bolts or screws
to clamp hub 45 upon the pipe. Hub 45 is provided with an annular recess 45°,
to receive packing or lead around the pipe, and set screws 45d are carried by
hub 45 to prevent the latter from sliding along the pipe. 46 is another divided
sleeve having an annular recess 46 to receive packing or lead, and also provided
with lugs or projections 46b at one end having apertures 46°, and lugs or ears 47
at the opposite end provided with apertures 47. Apertures 46, 47", receive
bolts or screws to hold the divided sleeve 46 firmly upon pipe 1. Hub 46 also,
by preference, carries screws 47b to prevent it from sliding along the pipe. Upon
the periphery of sleeve 46 are screw threads 48 adapted to mesh with corresponding

page_text: threads 49 that are carried within sleeve 30, which in this case is adapted to
be clamped around hub 46.
It will be understood that as sleeve 30 is rotated around sleeve or hub 46 it
will be caused to travel longitudinally by means of threads 48, 49. In this case
sleeve 30 is moved along 46 while wholly enclosed within casing 2, instead of
partly within and partly without casing 2 as in Figures 1 to 7. For this purpose
sleeve 30, in Figures 9, 10 and 11, is shown provided with peripheral gear
teeth 50 arranged to be engaged by pinions or gear wheels 51, whereby as the
latter are rotated sleeve 30 will be rotated on hub 46 to cause it to travel along
the latter. Two pinions or gear wheels 51 are shown carried by shafts 52, which
project through apertures 53 in the wall of the casing (see Figure 12) which
apertures form bearings for said shafts. 53 are stuffing boxes carried by casing 2
in line with apertures 53, and through which shafts 52 pass, whereby water tight
joints are provided for said shafts. Shafts 52 may be rotated by suitable means.
In Figure 12 is shown a lever 55, with a ratchet 56 and pawl 57 for rotating the
shaft. I have shown two shafts 52 and pinions 51 so that if one shaft or pinion
should break the other will be ready for use, but one shaft and pinion can be
used if preferred. It is designed to clamp a valve 16 between sleeve 30 and
hub 45 after a section of pipe 1 has been cut out between said sleeve and hub in
accordance with the cutting machine shown in Figures 7 and 8
The flanges or hubs 39b of valve 16 are shown provided with annular
grooves 58, 59, adapted to receive corresponding annular ribs 58, 59", carried
by hub 45 and sleeve 30 respectively (see Figure 9). These guide valve 16
into position and compress flexible packing which may be secured to the face
of flanges of sleeve 30 and hub 45. The corresponding faces of the flanges 39
of the valve and sleeve 30 and hub 45 are also preferably provided with annular
grooves 60, 61, which are adapted to register when the valve is brought in proper
position between sleeve 30 and hub 45. These grooves 60, 61, are provided to
receive packing or lead after valve 16 is set in position to secure a permanent
tight joint around the pipe.
62 is a screw or stop shown located in a threaded aperture 63 in the bottom
of casing 2, whereby it may be adjusted up or down according to the size of the
valve to be inserted, to insure that valve 16 will come to rest in the proper position
relatively to pipe 1, when it is lowered into casing 2. But any other suitable
stop may be provided. Grooves and ribs 58, 59, 58 and 59" assist in sustaining
the valve in position between the clamping devices when the casing 2 is removed,
and also serve as packing, but any suitable packing may be interposed between
parts 30 and 45 and the valve flanges.
To further assist in placing valve 16 properly between the severed ends of pipe 1
I may provide peep-holes 64 in the opposite sides of casing 2. (See Figures 10
and 12). Pockets 65 on the outside of casing 2 receive glass 66, in line with
openings 67, the surface of pockets 65 being open to admit the glasses, and pack-
ing may be placed above the glass to prevent leakage. Packing 68 may be
interposed between the pocket 65 and glass 66 to resist water pressure to prevent
breakage of glass.
When valve 16 and its stem are longer than bonnet or cover 13 (as shown in
Figures 9 and 10) I provide an intermediate hollow case or shell 138 having a
flange 13, to be bolted to flange 15, and the flange 13 to be bolted to flange 14
of extension 6. Thus, bonnet 13 will be raised sufficiently high above valve 8
to enable gate valve 16 to be contained within a closed chamber above the valve 8,
while in line with passageway 6 of extension 6, as in dotted lines in Figure 9.
It is evident, however, that bonnet 13 could be of sufficient length to receive
valve 16 and its stem without shell 138. But in that case, when the same bonnet
is to be used in connection with the pipe cutter, and the valve, shafts k, g, of the
cutter would have to be sufficiently long and, furthermore, bonnet 13 would be
heavier to handle. In Figures 9 and 10 rod 17 is shown provided with a threaded
stem 17 adapted to mesh with corresponding threads in a bore in the upper end

page_text: of stem 16 of valve 16, whereby when valve 16 is lowered into position and
secured rod 17 can be unscrewed from the valve to permit removal of bonnet 13.
But other means may be provided for connecting rod 17 with valve 16, and for
lowering the valve to the pipe.
In Figures 9, 10, 11, 12, hubs 3 and 4 are shown removable from casing 2, and
held in line with apertures 3", 4", in said casing for the passage of pipe 1.
Hubs 3, 4, are divided or split and adapted to be clamped around said pipe.
These hubs are shown provided with the usual annular recesses to receive packing
or lead to make a tight joint around pipe 1. Hubs 3, 4, are provided with
flanges 3, 4b, respectively, to receive bolts to clamp the hubs around the pipe
(Figures 11 and 12). It is evident that means other than the flanges, bolts and
screws can be provided for clamping casing 2 and hubs 3, 4, upou pipe 1. These
removable hubs are shown as provided with flanges 3° having apertures 3 to
receive bolts or screws 3° carried by casing 2, whereby the hubs and casing cau
be secured together while upon pipe 1.
By having removable hubs 3, 4, apertures 3", 4", in casing 2, may be large
enough to receive a certain sized pipe, say eight inches in diameter, and two or
more sets of hubs may be provided having bores of sufficient size to properly fit
upon said 8 inch pipe and also upon smaller pipes, whereby one casing or box 2
can be utilized for inserting valves in pipes of varying sizes.
In Figure 9, valve 8 is in the form of a gate-valve, adapted to be spread by
rod 10 in any well known manner, and 9" is a supplemental seat to receive disk 8"
in closing passageway 6".
The manner of inserting a valve in a pipe or main is as follows: If the pipe
or main is buried underground a suitable excavation is made around the place
where the valve 16 is to be inserted, and the pipe cutting machine is then fitted
properly upon the pipe, and part of the cut made if desired, (see Figure 7). If
operating according to Figures 1 to 8, sleeve 30 is next clamped together around
the pipe, with its inner end near the line of cut of tool .m, and suitable packing
is placed in space 32, preferably against rib or shoulder 34, and between that
and the inner end of the sleeve. If working according to Figures 9 to 12, hubs
or sleeves 45 and 46 are fastened and packed upon the pipe, on opposite sides of
the cutting machine, and sleeve 30 is then clamped around sleeve 46, so that
threads 48, 49 mesh. In both cases casing 2 is clamped around the pipe, the
cutting machine, and sleeve 30; in the case of Figures 1 to 7 sleeve 30 projecting
partly from the casing, and in the case of Figures 9 to 12 pinions 51 and shafts 52
are adjusted in proper positions to rotate sleeve 30; tight joints are also made where
required. In both cases, valye 8 is withdrawn from seat 9, a bonnet or cover
is secured over passageway 6, shafts g, k, being meanwhile adjusted in their
respective bearings and the stuffing boxes or packing on the bonnet or cover, and
all joints made tight, the parts s, u, v, being also adjusted to sustain the pipe
cutter when the pipe is cut through. The tools m are now operated to cut out
a section 1" of pipe 1, which, of course, remains attached to the cutting machine.
Fluid from pipe 1 will now fill the chambers 2ª, 6, 13", and the cutting machine,
with the attached section of pipe, is next lifted up into the bonnet 13 (see
Figure 8), and valve 8 is closed over its seat and secured to keep the pressure of
the fluid in chamber 2" from lifting it. Fluid may now be drained from the
bonnet through a cock 40. The bonnet and the pipe cutting machine are next
removed from the casing. The valve (16) to be inserted between the ends 1b, 1°,
of pipe 1 (having suitable packing 41, 42, in its hubs 39, 39, in Figures 1 to 7)
is next placed upon valve 8, in passageway 6º, properly connected with its
operating tube or rod 17, and bonnet or cover 13 is secured over passageway 6ª,
thus enclosing valve 16, the parts 24ª, 25 and 26, or other devices for lowering
the valve, being adjusted in position to control the passage of the valve to the
space between the severed ends of the pipe. Wheel or lever 25, or other device,
is now operated to raise valve 16 from valve 8 and the latter is withdrawn into
its chamber 7. Valve 16 is next lowered into the space between the ends of the

page_text: pipe so that, according to Figures 1 to 7, the bores of its hubs 39, 39ª, will be
aligned with the end of sleeve 30 and the end 1° of pipe 1, respectively, as shown
in Figure 1; and in the case of Figures 9 to 12 valve 16 is lowered between, hub. 45
and sleeve 30 (see Figure 9). Sleeve 30 is next moved along pipe 1, according to
Figures 1 to 7, by means of the screws 38 (whose ring or frame 35 has been
secured upon pipe at any convenient time) and its inner end passes into the
böre of hub 39 until it abuts against the inner wall thereof, or against interposed
packing 41. A continued movement of sleeve 30 pushes valve 16 toward, end 1°
of pipe 1, so that its hub 39" passes over the end of the pipe until the latter abuts
against the inner wall of said hub, or against interposed packing 42 (see Figure 3),
the movable connection between valve 16 and tube or rod 17 allowing free lateral
movement of valve 16, the roller traveling along way or rail 21, as shown in
Figure 3. Screws 38 are now. all set up tightly to make a tight fit between the
pipe and valve. Packing 33 prevents fluid from leaking through space 32. In
the case of Figures 9 to 12 pinions 51 are rotated to cause sleeve 30 to travel
around, whereby threads 48, 49, cause the sleeve to move against the flange of
valve 16, and to thus push the opposite flange thereof against hub 45, or against
interposed packing. Fluid may now be drained from casing 2 through a plug
hole 43, or a cock connected therewith. In removing casing 2 the tube or rod 17
will be detached from the valve, and bonnet or cover 13 removed, casing 2 there-
after being removed, leaving valve 16 secured between end 1° of pipe and
sleeve 30 (see Figure 3), or between sleeve 30 and hub 45 (see Figure 9). The
joints around the hubs of the valve and the outer end of sleeve 30 (in Figures 1
to 7) will next be packed in suitable manner to make permanent tight joints.
The valve will thus be finally inserted in the line of pipe without stopping the
flow of fluid therethrough at any time. Sleeve 30 will be the only part of the
valve-inserting devices left on the pipe in the case of Figures 1 to 7, and in
Figures 9 to 12 the hubs 45, 46, will also be left on the pipe, grooves 60, 61,
being filled with packing.
If it is desired to additionally secure the valve to the sleeves 30 and 45 I may
provide a clamp B to fit over the flanges of said parts, the clamp having a set
Screw C to hold the parts together, which clamp may be applied after the bonnet
or casing has been removed (see dotted lines in Figure 9). Or, if preferred,
the flanges of the valve and sleeves 30 and 45 may be bolted together, said flange
being provided with slots to receive bolts for the purpose. Or other means may
be provided for firmly connecting the flanges of the valve and sleeves together.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1. A casing adapted to surround a pipe and having a chamber that is larger
than the pipe to be surrounded, and adapted to receive a valve within it, com-
bined with means adapted to connect the valve with the pipe while within the
casing.
2. A casing adapted to surround a pipe and having an opening to permit the
passage of a valve that is to be connected with the pipe, combined with means
to connect the valve with the pipe while within the casing.
3. A casing adapted to surround a pipe and having an opening to permit the
passage of a valve that is to be connected with the pipe, and means to close said
opening, combined with means adapted to connect the valve with the pipe while
within the casing.
4. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve that is to be connected with the pipe while within the casing,
and means to control said opening, combined with means adapted to encircle the
pipe and to travel therealong, said means being arranged to make connection with
the valve and to move a hub of the valve over one end of the pipe.
5. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve, and means to control said opening, combined with a sleeve

page_text: adapted to encircle the pipe and to travel therealong, and arranged to enter a
hub of the valve to secure the latter between the severed ends of the pipe.
6. A casing adapted to surround a pipe and having an opening to permit the
passage of a valve that is to be connected with the pipe, and means to control
said opening, combined with a sleeve adapted to encircle the pipe while within
the casing, and means to move said sleeve toward the valve to hold the latter
between the severed ends of the pipe.
7. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve to be connected with the pipe, and means to control said opening,
combined with a sleeve adapted to be secured around the pipe and to travel there-
aloug, and arranged to engage a valve to move one of its hubs over the end of
the pipe.
8. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve, and means to control said opening, combined with a sleeve
adapted to be secured around the pipe and to travel therealong, said sleeve being' |
adapted to enter a hub of the valve and to push its other hub over one end' of
the pipe.
9. A casing adapted to surround a pipe and having an opening to permit the
passage of a valve into the casing, a valve to close said opening, and a removable
bonnet or cover adapted to contain the first-mentioned valve, and means to connect
said bonnet or cover with said casing, combined with means to connect the valve
with the pipe while within the casing.
10. A casing adapted to surround a pipe and having a chamber and an opening
to receive a-valve, means to control said opening, said casing having an opening
of greater diameter than the pipe to be received, and a stuffing box or packing at
said opening, combined with a sleeve adapted to be secured around said pipe
and to travel therealong and through said stuffing box or packing, said sleeve
being adapted to make connection with a valve to retain the latter between the
severed ends of the pipe.
11. A casing adapted to surround a pipe and having a chamber and an opening 3
to receive a valve, and means to control said opening, said casing having an
opening of greater diameter than the pipe to be received, and a stuffing box or
packing at said opening, combined with a sleeve adapted to be secured around
the pipe and to travel therealong and through said stuffing box or packing, said
sleeve being adapted to make connection with a valve to retain the latter beween 3
the severed ends of the pipe, and with means adapted to be secured to the pipe
to operate said sleeve.
12. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve, and means to control said opening, said casing having an
opening of greater diameter than the pipe to be received, and a stuffing box or
packing at said opening, combined with a sleeve adapted to be secured around
the pipe and to travel therealong and through said stuffing box or packing, said
sleeve being adapted to make connection with a valve to retain the latter between
the severed ends of the pipe, and with a clamp or frame adapted to be secured
upon the pipe and a screw or screws carried thereby to move the sleeve along 4
the pipe.
13. The combination of a casing of the character described, with a sleeve
adapted to encircle a pipe and to travel therealong within said casing, said sleeve
having an inner rib or shoulder to provide a space between the pipe and the
sleeve to receive packing, said sleeve being adapted to make connection with a 5
valve to retain it between the severed ends of the pipe.
14. A divided or split sleeve provided with means to secure it around a pipe
and having closed walls, said sleeve having divided or split annular rihs or
shoulders to provide a space between the pipe and the sleeve when the latter is
in connection with the former.
15. The combination of a casing adapted to be secured around a pipe and
having an opening or passageway, a valve to control said opening ог
5

page_text: passageway, and a bonnel or cover to be connected with said casing, combined
with means within the casing adapted to hold a valve between the severed ends
of the pipe while within the casing.
16. A casing adapted to surround a pipe and having a chamber and an opening
to receive a valve, and means to control said opening, combined with a valve
adapted to pass within the casing, said valve having two hubs, one hub having
a bore of greater diameter than the other, and with a sleeve adapted to be secured
around the pipe and to travel therealong and to enter the larger hub, the other
hub being adapted to pass over one of the ends of the pipe.
17. A casing adapted to be secured upon a pipe and having a chamber and an
opening to receive a valve, means to control said opening, and a removable
bonnet or cover adapted to receive the valve within it and to be secured to said
casing in line with said opening, and means to control the placing of the valve
between the severed ends of the pipe while within the casing, combined with a
sleeve adapted to be secured around the pipe and to travel therealong to make
connection with the valve to push a hub of the latter over an end of the pipe.
18. A casing adapted to be secured upon a pipe and having a chamber and
an opening to receive a valve, means to control said opening, and a removable
bonnet or cover adapted to receive the valve within it and to be secured to said
casing in line with said opening, and means to control the placing of the valve
between the severed ends of the pipe while within the casing, said casing having
an opening of greater diameter than the pipe to be received, combined with a
sleeve adapted to be secured around the pipe and to travel therealong and through
said opening, and means for moving said sleeve along said pipe to make connection
with the valve to secure the latter between the severed ends of the pipe.
19. A casing adapted to be secured upon a pipe and having a chamber and an
opening to receive a valve, means to control said opening, and a removable bonnet
or cover adapted to receive the valve within it and to be secured to said casing
in line with said opening, said casing having an opening of greater diameter than
the pipe to be received, combined with a tube or rod adapted to travel through
an opening in said bonnet or cover, a movable connection carried by said tube
or rod to connect the latter with the valve, and with means carried by the pipe
adapted to make connection with said valve to secure it between the severed ends
of the pipe, and also adapted to permit the valve to move laterally within the
casing.
20. A casing adapted to be secured upon a pipe and having a chamber and an
opening to receive a valve, means to control said opening, and a removable bonnet
or cover adapted to receive the valve within it and to be secured to said casing
in line with said opening, said casing having an opening of greater diameter
than the pipe to be received, combined with a tube or rod adapted to travel through
an opening in said bonnet or cover, a movable connection carried by said tube
or rod to connect the latter with said valve, and with a sleeve adapted to be
secured around the pipe to travel therealong and through the opening in the
casing around the pipe, said sleeve being adapted to make connection with the
valve to secure it between the severed ends of the pipe, said movable connection
being adapted to permit the valve to move laterally while within the casing.
21. A casing adapted to be secured upon a pipe and having a chamber and an
opening to receive a valve, means to control said opening, and a removable bonnet
or cover adapted to receive the valve within it and to be secured to said casing
in line with said opening, said casing having an opening of greater diameter
than the pipe to be received, combined with a tube or rod adapted to travel through
an opening in said bonnet or cover, a wall or way carried by said tube or rod,
a roller to travel thereon, a frame or support connected with said roller for con-
nection with the valve, and a sleeve adapted to make connection with the valve
and to be secured around the pipe and to travel therealong, said rail or way and
the roller being adapted to permit the valve to move laterally while within the
casing.

page_text: 22. A casing adapted to be secured upon a pipe and having a chamber and an
opening to receive a valve, means to control said opening, and a removable bonnet
or cover adapted to receive a valve within it and to be secured to said casing in
line with said opening, said casing having an opening of greater diameter than
the pipe to be received, combined with a tube or rod adapted to travel through
an opening in said bonnet or cover, a head 18 for connection with said tube or
rod, a bar 20 connected therewith, a rail or way connected with said bar, a roller
to travel on said rail or way, a frame connected with said roller for connection
with the valve, and a sleeve adapted to be secured around the pipe and to travel
therealong to make connection with the valve, said rail or way, and the roller
being adapted to permit the valve to move laterally within the casing.
23. The combination of a casing adapted to be secured around a pipe and having
a chamber and an opening, means to control said opening, a bonnet or cover to
be connected with said casing, and means to permit a válve to be placed between
the severed ends of the pipe, with a sleeve adapted to be secured around the pipe
and to travel therealong, said casing having an opening to permit the passage of
said sleeve toward the valve to make connection therewith to push a hub of the
valve over one end of the pipe..
24. A valve having hubs or bells on opposite sides, the bore in one hub being
of greater diameter than the hore in the other hub, and a wall at the inner end
of each hub.
25. A divided or split casing having an opening or passageway, a valve for
closing the latter and means for securing said casing upon a pipe, combined with
clamping devices adapted to be secured upon the pipe within said casing and to
receive and hold a valve between them while within the casing.
26. A divided casing adapted to be secured upon a pipe and having a passage-
way or branch, a valve to close the latter, a bonnet or cover adapted to be secured
in line with said passageway, and means for making a tight joint between the
casing and pipe, combined with clamping devices adapted to be connected with
the pipe within said casing to hold a valve between them.
27. A divided casing having apertures at its ends, means for clamping it upon
a pipe, said casing having an opening or passageway, a valve to close the latter,
and divided or split hubs adapted to be clamped upon the pipe and removably
connected with said casing to enable the casing to be secured fluid-tight upon
pipes of different sizes.
28. A divided casing adapted to be clamped upon a pipe and having an open-
ing or passageway, and a valve to close the latter, combined with a sleeve or
hub adapted to be clamped upon the pipe within the casing, and a sleeve or ring
adapted to surround the pipe and to be moved toward said sleeve or hub to hold
a valve between them.
29. A divided casing adapted to be clamped upon a pipe and having a branch
or passageway, and a valve to close the latter, combined with divided or split.
sleeves or hubs adapted to be clamped upon a pipe within said casing, and means
carried by one of said sleeves adapted to be moved toward the other sleeve to
clamp a valve between it and the latter sleeve.
30. The combination of a divided casing adapted to be clamped upon a pipe
and having a branch or passageway, and a valve to close the same, with divided
or split sleeves or hubs adapted to be clamped upon a pipe within said casing,
and a sleeve or ring carried by one of said sleeves adapted to be moved toward
the other sleeve to clamp the valve between it and the latter sleeve, and means for
operating said sleeve from without the casing.
31. The combination of a divided or split casing adapted to be clamped upon
a pipe and having a branch or passageway, and a valve to close the same, with
divided or split sleeves or hubs adapted to be mounted upon a pipe within said
casing, one of said sleeves or hubs having screw threads, a sleeve mounted upon
the latter sleeve or hub and having threads to mesh with the threads carried by

page_text: said latter sleeve or hub, and means for rotating said sleeve to cause it to travel
along said sleeve or hub.
32. The combination of a divided casing adapted to be clamped upon a pipe,
and having a branch or passageway, and a valve to close the same, with divided
or split sleeves or hubs adapted to be clamped upon the pipe within the casing,
one of said sleeves or hubs carrying screw-threads, and a ring mounted upon said
threaded sleeve and having threads to mesh with the threads carried by said sleeve,
and a shaft projecting through said casing, and means within the casing for
operating the ring by said shaft.
33. A divided or split casing, adapted to be clamped upon a pipe, and having a
passageway or branch and a valve to close the same, combined with divided or
split sleeves or hubs to be clamped upon the pipe within said casing, one of said
sleeves or hubs having screw threads, a divided or split ring or sleeve adapted to
be mounted upon one of said sleeves or hubs and having threads to mesh with
the threads of the corresponding sleeve or hub, gear teeth carried by said ring
or sleeve, a pinion or gear wheel to mesh with said teeth, and a shaft projecting
through said casing, and adapted to operate said pinion or gear wheel.
34. A divided casing adapted to be clamped upon a pipe and having a passage-
way or branch and a valve to close the same, and a bonnet or cover adapted to be
connected with the casing in line with said passageway, combined with means
within the casing to hold a valve between the severed ends of the pipe and a stop
arranged to regulate the position of the valve between said ends of the pipe.
35. A divided or split casing adapted to be clamped upon a pipe and having a
passageway or branch, and a valve to close the same, a bonnet or cover adapted
to be connected with said casing in line with said passageway or branch, and a
pipe-cutter adapted to be placed upon the pipe within said casing and arranged
to travel through said passageway or branch and through said bonnet or cover,
and a bearing and stuffing box carried by said bonnet to receive the operating
shaft of said pipe cutter, combined with means arranged to be contained within
the casing to hold a valve between the severed ends of the pipe, after the pipe
cutter and a section of the pipe have been removed.
36. A divided casing adapted to be clamped upon a pipe and having a passage-
way or branch, and a valve to close the same, a bonnet or cover adapted to be
connected with said casing in line with said passageway or branch, and a pipe
cutter adapted to be placed upon a pipe within said casing and arranged to travel
through said passageway or branch and through said bonnet or cover, and a
bearing and stuffing box carried by said bonnet to receive the operating shaft
of said pipe cutter, combined with clamping devices adapted to be secured upon
the pipe within said casing on opposite sides of said pipe cutter, and means
comprised in said clamping devices for clamping a valve between the severed
ends of the pipe after the pipe cutter and a section of the pipe have been removed.
37. A divided or split casing adapted to be clamped upon a pipe and having
a passageway or branch and a valve to close the same, a shell adapted to be con-
nected with said casing in line with said passageway or branch, and a bonnet or
cover adapted to be secured upon said shell, combined with valve-holding devices
adapted to be mounted upon the pipe within said casing, to hold a valve in the
line of pipe, and means for operating said clamping devices from without the
casing.
+
38. The combination of a divided or split sleeve or hub adapted to be clamped
upon a pipe, with another divided or split sleeve or hub also adapted to be clamped
upon a pipe, a divided or split ring adapted to be mounted upon the said last
mentioned sleeve or hub and means for moving said ring along its respective
sleeve or hub, whereby a valve may be clamped in a line of pipe between said
sleeves or hubs.
39. The combination of a divided or split sleeve or hub adapted to be clamped
upon a pipe, with another divided or split sleeve or hub also adapted to be clamped
upon a pipe, the last mentioned sleeve or hub having peripheral screw threads,

page_text: a divided or split ring adapted to be clamped upon the last mentioned sleeve or
hub, and having threads to mesh with the threads of said sleeve or
hub, and
means for rotating said ring upon the latter to cause it to travel along the pipe.
40. The combination of a divided or split sleeve or hub adapted to be clamped
upon a pipe, with another divided or split sleeve or hub also adapted to
be clamped upon a pipe, the last mentioned sleeve or hub having pheripheral screw
threads, a divided or split ring adapted to be clamped upon the last mentioned
sleeve or hub and having screw threads to mesh with the threads of said sleeve
or hub, said ring having gear teeth, a pinion or gear wheel to mesh therewith,
and means for operating said pinion or wheel to cause said ring to rotate around
the corresponding sleeve.
41. The combination of a divided or split sleeve or hub adapted to be clamped
upon a pipe, with another divided or split sleeve or hub also adapted to be clamped
upon a pipe, a divided or split ring adapted to be mounted upon the last mentioned
sleeve or hub, and means for moving said ring along the latter, with a valve
adapted to be clamped between said first mentioned sleeve or hub and said ring,
and corresponding recesses and projections located between said valve and the first
mentioned sleeve or hub and the ring.
42. The combination of a casing adapted to be secured upon a pipe, said casing
having openings in opposite sides or ends, combined with divided or split hubs
adapted to be clamped upon the pipe to close said openings in the casing, and
means for securing said hubs to said casing.
Dated this 07th dow of T.1., 1907