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Патент USA US2408281

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l
` Sept. 24, 1946.
P. E. wlLCOX
APPARATUS FOR BEFACING GATE VALVES
Filed Dec. l.- 1944
3 Sheets-Sheet 2
INVESTOR
P?w'üpä Walaox
BY
ATTORNEY
~s«.»pt.24, 1946.
'
'F.-EWILCQX
~
2,408,280
APPARATUS FOR REFACING GATE VALVES
Filed Dec. l, 1944
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INVENTOR
~
PlzzílzlpE. Wiícox
.BY
2
ATTORNEY
J
,_
"
2,408,280
yPatented Sept. 24, 1946
.'uNITEo-.QSTATES PßxwsiiTl oFFIcB
APPARATUS FOR REFACING GATE VALVES
Philipe. Wilcox, New York, N. Y., assignor to The
Leavitt Machine’Company, Orange, Mass., a
à
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corporation of MassachusettsA
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_
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_ Application December 1, 1944, Serial No. 566,167 Y i
' 2
y
1
,
.
My‘invention relates generally to an apparatus
yfor facing oíf the seats-"ofv gate valves.
Vthese surface areas andthe areas of the top
Yvalve s'urfacegBA which are incontact therewith.
This base plate is comprised of four wallsïor
sides `to denne anr open rectangular frame to
w One of the general objects of -my> invention
is-an improved arrangementV whereby a seat of
receive therewithin -the >operative parts which
a gate valve can be faced-off accurately to any
are Vrentered into the valve casing. Rails or gibs
II and I2 are mounted upon opposed sides of
the valve.
‘
f
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bed plate I0 and are shown as secured thereto
One of the Vobjectsof my invention `is anfim
as follows: A' dowel pin I5 extends upwardly
proved arrangementwhereby both seats of a gate
valve can -beßfaced'oiî' accurately to the same 10 centrally from >one of these opposed walls (see
desired angle without requiring the removal of
Fig. `2)v to engage into an opening centrally of
degree. and more ’particularly such arrangement
wherein -the facing ofloperation can be reffected
without removing the valve.
ï
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v
the rail I I. This dowel pin I5 serves to initially
assemble and locate rail I I with and on that side
or wall. Rail II is locked against movement in
y
"For the attainment of these objects and such
any preferred ’or desired manner.\Two such
other objects as may hereinafter be pointed out '
screws I3 are shown in Fig. 2, one to each side
‘Ihave illustrated an :embodiment of the inven- I
tion in the drawings wherein:
i
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of the dowel pin I5. These elements I3 and I5
retain the-rail II associatedv as shown at’the
'
' Fig. 1 is a vertical section through the refacing
lower end of this figure.
mechanism in operativeV relation to the gate
valve;
“
,
Y
Fig.v 2 is a? horizontal` section.` taken on line
2*-2 of ‘.Fig. 1 looking. in the .direction of the
arrows;l
.
-
`
`
>
Fig. 3y is‘aïsection taken on line 3,-3 jor'
Y
side ofthe bed plate IU ‘by means which permit
'Y a bodily adjustment of :rail I2` toward and away
'
Fig. 4 is a View of a detail.
' My invention has been. developed for the pur
pose‘ ofgrinding the seats of a gatevalve. To
facilitate the understanding vof my` apparatus
and lthe manner of operation, I show in Fig. 1,
in dot and dash lines, the outline of a typical
gate> valve with the bonnet removed, to uncover
and'expose its top surface B. The opposed seats
marked D and D’ are at the lower end of the
valve :body C. This ’type of valve is character 35
izedin' that these valve lseats are presented at
theA same angle to the vertical and at an angle
`
The rail I2 issecured on the opposite ywall or
20
f
from- railv lI I.; v‘These securing means comprise
ytransversely elongatedrdepressions I4 in the up
per surface of irail I2, into each of which opens
ra correspondingly' transversely elongated slot I4'
ïthrough which engages a loc-king member I I6
-headed at one end and threaded at the other
to Vengage base III'by being threaded thereinto.
This construction is shown in detail as to one
of the securing members, centrally at the eX
treme right of Fig. '3. Three such members are
shown in the illustrated embodiment (see Fig.
2). ,As a result of this arrangement, the rail
I2 rcan be adjusted toward and from rail I I when
screws I6 are loosened, and then locked in ad
justed position by tightening screws I6 which are
countersunk in depressions I4 of rail I2.
to each other, as shown in this figure. My in
The rails I`I and I2 have their inner faces
-vention contemplatesv that the seats D and D'
be faced off without requiring removal'of the 40 inclined or undercut as shown at II' and I2'
in FigpB for purposes that will be pointed'out
valve. To this end, the apparatus of the dis
shortly. It will be observed from the showing
closed embodiment has'be'en devised so that it
Fig.r 3 that these rails'rII and I2 are narrower
vcan be seated directly onthetop surface B of
than the Walls or sides of the base I0 upon which
vthevalve casing so that the refacing operation
they are' mounted and that they overlie the outer
requires> only the -removal> of the bonnet which.
portions Aoi these walls and do not overlie the “
_seats onv this top> surface to;c1ose the casing.I
inner portions thereof." The main housing now
.If-Upon viewingv Fig.V 3» of the jdrawings' it will
to be described is mounted upon these inner por
be observed that theY ¿base‘or- bed plate of this
tions of these opposed sidewall members.
apparatus is shown at -Iûa-#It seats directly on
The mainhousing is mounted upon the base
the top surface B of the valve casing C which 50
for
slidingadju'stment.therealong in the direc
therefore functions as the sole surface rof refer
tion` to the VVright or the left in the -showing of
ence for the apparatus. The underface l,of the
AFigures 1 and 2.. This main housing comprises
base is padded for limited areasA as shown at
a base 20 (see Fig. V3) and walls 2|, 22 and 23
vI_íI' in Figures 1 and 3 and >these areas are
¿ground‘vaccurately tofassure a jclose titi-between 55 which extend' outwardly therefrom and .denne
2,408,2áó
3
4
a casing with an open side which is closed by
the separable wall member 24 detachably secured
wall 24 of the main casing and whose inner ends
abut against the end faces of walls 36 and 31
thereto to form the fourth wall of and complete
the main housing structure. This closure wall
of the hanger fork so that tightening the bolts
secures the hanger fork suspended from the main
24 may be secured in position in any preferred
or desired manner. I show threaded members
frame in any predetermined elevated relation.
The walls 36 and 31 extend a substantial dis
tance below the connecting webs or walls 38 and
25 (see Fig. 2) passed through the wall 24 and
threaded into the end faces "of opposed 'walls 2l
and 23; The base 28 >is mounted yupon a frame
which I will hereafter identify as the slide frame
for reasons that will shortly appear. This slide
33. ’These downwardly extending *portions take
the form of tapering legs 43 and 44 (see Fig. 1),
provided adjacent their lower ends with pivot
, . .
frame is comprised of opposed pairs of walls 261
and 262 (see Fig. 3) and 263 'and 264 ’(see Figures
1 and 2). Upon reference toFi‘g. r3 `it will be 'ob«>
`pins or pintles 41 and 48 received and held in
horizontal openings through these ends. For
reasons that will appear shortly these lower ends
of legs -43 and 4'4 are shown as provided with
served that the base 26 ‘of the main fhousing .f: inwardly Vdirected enlargements 50 and 5l
is located on the slide frame by dowel pins '21
>`through which 'the pivot pins 41 and 48 pass.
which extend upwardly fro-rn opposed walls- 261
and 262 and engage in depressions 'in Ythe 'under
face of base 26. The drawings show one -dowel
pin centrally of the length of each of these two
walls 261 and 262 of the slide `frame. (See Fig.
V13)" The two dowel Vpins serve to fix _the lposition
of the main housing on the slide frame. Means
are provided for securing the vmain housing
It will >be observed that the pivot pins extend
inwardly beyond `these enlargements 50 and 5|
against movement relatively-to or separation .
.to 'form pivots for the spindle casing, now to be
described.
The spindle casing is shown »at 60 and lis a
hollow casing the contour of which may be as
illustrated> in cross section in Fig. 2. It is sup
ported adjacent its lower end on the aforemen
tioned inward extension of pivot Apins '41 and 48
which are received in radially extending open
ings formed in the spindle casing as shown in
Fig. 3. As ,a .result the spindle casing 60 is free
from the slide frame. In Fig. y3 I have illustrated
these means as pairs of bolts 28 along opposed
`sides vof «the base 26 to each side of dowel pins
-21 and received throughA openings -in the base to
to swing about 'the horizontal axis deñned by the
each ‘_side of vdofwel pins 21 and engaged into the _ .pivot pins 41 and 48 at the lower end of the hanger
slide frame.
lThe slide frame has the lower por
fork. The casing 60 is thickened in yopposition
to portions 50 and 5l to complete the pivot bear~
ing and to space the casing 60 and the .forks 43
"and 44. The -arrangement illustrated in the
drawings for controlling the angular position ‘of
spindle >casing `60 about Vpivot ¿l1-“48 comprises
a hollow plunger pin 65 (see Fig. l) slidingly
guided within casing 66 ‘which extends outwardly
tionof the »i-nnerpfaces of opposed side walls 261
andn262 (see Fig. 3) inclined outwardly as vshown
at -28vhto engage >beneath the inclined faces ll'
`and I¿2’_^of the guide rails »ll and I2.
As a re
sult_of this arrangement the main housing ñxed
to the slide >frame asß explained, .is mounted on
_the *bed plate for jsliding Aadjustment thereon to
the right or to the left in the showing 'of Figures
l and-2.
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from the web Io'r wall section 39 of Athe hanger
fork and through an opening 68 in the closure
wall 24 -of the main- frame provided for -clear
a'nce and which guideway is 'shownclosed at its
y
ï will `new describe one arrangement whereby
the main housing can‘be adjusted on the bed
'plate to and held impredetermined position. The
bpedplate Ill‘has _a ¿nar-ige ~3E).extending¿upwardly
outer end as by threaded plug 69. The :plunger
pin 65 is yieldingly forced outwardly >by ‘a spiral
spring 1D contained within the guideway or ’casing
along one edge of the walls thereof. r¿l‘his .flange
is enlarged vertically centrally Àthereofas shown
at _130' in
`2. An adjusting `~member 3tlg
threaded through this `central enlargement 36’.
¿Secured to its outer end is the operating handle
32„ rotation ~of_ which -w-ill advance or retreat the
adjusting member 3l which is secured at its >inner
end to wall 263 of the slide `frame (see Fig. 3),
which is held engaged therewith lbetween the
'shoulder left by the reduced -thickness -of the
»innermost portion -of member »3| and ¿washer 34
secured at »the extreme inner end o_f 3l. From
thedescription thus far sg-iven it will `be under
s-tood that »rota-tion of the »handle 32 -will adjust
the position îof lthe slide frame »to «the right or
to the left in the »showing in Fig. Á1 and in so
66 and which abuts at -one 'end against plug 69
and the outer end against the inner surface of
plunger '65. These parts are so .positioned and
:related that Ythe «nose of îplunger 65 .'is yieldingly
-50 held against ’spindle casing ‘50 `and 'tends vto swing
it clockwise about its pivot in the showing of
Fig. 1 Yand maintain _it against'the end of limiting
`screw 13 which is .threaded through wall 38 of
the hanger fork (see Fig. 1f), 'the parts being îs‘o
55 lpositioned “and related that "the nose 12 of limit
ing 'screw 13 engages `in 'groove 14 formed in the
opposite side ‘of spindle casing 60. The v'screw
13 may be rotated by foper'ating handle 15`to re
tract 'or 'advance the ino’se 12. Manipulation -'of
doing will correspondingly adjust the positionof
the ¿main housing carried thereby land of the
facing ol‘î apparatus carried by the main housing
and which I will now proceed to describe.
fA hanger fork is received within and supported
by the Vmain housing already described. It is
comprised «of >two parallel velongated wall mem
bers 35 and 31 connected ‘intermediate their
length in parallel spaced ‘apart «relation by webs
or wall sections 38 `and 39. This 'hanger fork is 70
.supported from'thefma'i'n‘casing in any `preferred
orrdesired manner. Upon Vreference to Figs. 1
and 2 `it will -be observed 'that the sup-porting
means ’shown >in the-drawings comprise the sets
, of `bolts 35 and‘v351 threa’ded'through 'the closure
operating handle 15 moves ‘the'nose 12 to the left
vin the showing of Fig. -1 to Swing the spindle
casing 6U coun'terclockwise about its pivot against
the'press'ure of spring 10. A locknu't 11 threaded
on'th‘e ‘adjusting member 13 may >be employed
to ¿lock ~tlëla't'member in its adjusted Ípo'sition. As
a result o'f this arrangement the plunger pin '65
holds the vspindle casing A6l) lengagedagainst the
’adjustable "member` 13 VIand the two cooperate v"tc
>iì'x the angular position of the spindle Casing
about 'its pivot.
` Withinthe upper’en’d 80 o'f the spindle casing
6D is contained either aprirne mover or va shaft
vconnection thereto to driveea stub-shaft connected
lto the cutter 'shaft' 82 which rotates within spaced
bearings k83 fand ’84. The lower Y'end H'of Hcutter
2,408,280
6
'pI-have thus accomplished the purpose of -my
'shaft'82 carries gear 86 in mesh with crown gear
8l secured to the cutter head baseplate 88 in
any 'Qpreferred or desired Vmanner- Extending
rearwardly from cutter head baseplate 88 is the
-short _spindle or shaft 89v held in bearingV 90
. invention which as stated was to provide a simple
Vapparatus-which lcan be given the various ad
justments required to fix the position of the cut
Vter with relation to' the valve seat to be faced
done this ‘by the-use 'of a 'single
reference for'the'grinding of both valve seats
mounted inthe cutter'casing head9l. As a re
sult'of'this arrangement the `rotation ofv the cut
without disturbing that reference.
ter shaft f 82` will -rotatethe cutter head baseplate
»
.
' It Iwill be observed that pivots 41--48and the
adjusting membersv 65 and 13 are so located-in
vlower ~'end ofthe spindle casing has a circular 10 my
apparatus,that the former is within the valve
flange 92 extending outwardly therefrom to en
casing and Í'adjacent the valve seats in the oper
gage freely fin the annular @groove 93 formed on
ative relation of the parts whereas the latterare
88;- 'The cutter head» casing I9| mounted at the
the ‘inner Vfaceof ïthe cutter head baseplatel88.
well above the valve casing and far 'rem‘oved
Y he cutter `>head is vmounted for rotation on the
from the pivot 41-48. It will further be ob
lower end of shaft housing `iìll'and is driven by 15' served that the-parts are constructed for assem
the cutter shaft 82 supported therewithin. The
bly
the nested relation shown in the cross sec
'cutter head baseplatev 88 is guided in this rota
tion of Fig; 2. The advantages that flow'ther'e
tion-by the annular flange
' 82 engaged in the cir
l'cular' groovev 93.> Secured vto the outer face of the
>cutter head »baseplate'ßß is the cutter plate 91 to
the outer faceof which is secured the grinding or
from will be' appreciated by those skilled in this
20
f Having thus' described my invention, what 'I
claim `and Adesire to secure by Letters Patent is:
- 1; Mechanism for facing off 4the inclinedseats
cutting element or surface98. `
The apparatus hereindescribed is seated with
‘itsparts Yfully assembledon the valve top with
the ’pads I0' at: the‘bottom'ofthe baseplate I8,
of a gate valve without requiring the removal of
25 the valve,V saidV mechanism comprising a bedplate
havin-g anvopening therethrough-and adapted to
,in'fïdire'ct engagement'withtop surface B of the
valvek casingjas the `surface ofV referenceand with
the cutterf’projected into the valve body C and
>into adjacency to» that valve seatk which is to be
fáced'off
>'It i's one
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be -seated on the upperv face of the vopen valve
casing, a mainframe and 'means for mounting it
on >and `for -sliding 4adjustment relatively to the
bedplate,y said means comprising a-guideway >on
30
the bedplatev andv a slide frame receivedl there
of the objects of the invention that
within, means for mounting the mainframe on
the parts be readily assembled for the facing off
operation' and be readily disassembled when this
thej» -slide f ~frame « for adjustment therealongl,
a hangerv'supported byïandl for vertical adjust
ment relativelyto the, mainframe said hanger
operation Vis completed.- vThe adjustments pro
' vided 'for are for the v'purpose of bringing’the cut
35
extending belowY the bedplate into adjacency to
thek valve seats when the bedplate is >seated on
ting element 98 into predetermined relationto
the valve seat at the _right in the showing of Fig.
-1 for exam-ple, and the-se Yadjustments comprise
the followingz‘The ve'rtical__ position "of the cut
the valve casing and a cutter ,carrying member
pivoted to the lower end of said> hanger for an
‘of the'> main casing >are vcut away as shown at B8
to' bring theV cutter into parallelism with the valve
ting' element- can be 'abjus'ted byV elevating or 40 gular adjustment about a horizontal axis located
below- the'bedplate and adjacent the valve seats
loweringgthe'fhanger fork; The walls 22'and 24
seatito be faced olf, said cutter carrying mem
ber, extending above the base plate and means
above the base plate forr angularly adjusting the
and`yl'v83'in Figsi‘lfandîZof the' drawings so that
the plungerï‘ca'sing ûâiand'the; adjusting member
13 will cl«ea?”’th'esev walls. lThe lateral adjustment
of _the cutter S18-towards the valve seat upon which
45
cutter Carrying membensaid'm'eans Afor mount
ingl the main frame on thez slidefframe Vcompris
it_ is to'opel'atef;l i. e., the adjustment inîthe hori
'zontaL is effected ¿through adjustment of the
slide frame by operating handle member 32. The
adjustmentfof theslide frames adjusts the'main
ing interengaging elements' spaced 180° apart in
a Vhorizontal plane, for locating the main >frame
50
-frames and' the hangar forkyor housing and the -r
shaft casing, in other words allof the! apparatus
except the -base or bed- plate I0. 'I‘he angular po
sition’or-'relation‘of'the cutter 88 about a hori
`àontal axis is predetermined by member 13 op
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v
l
.
.
t
` on the slide frame so that the main frame can .be
lifted vertically from the slide frame to disen
gage said elements,v said elements being dupli
cations of each other whereby when the main
frame is,V lifted from off the slide frame and
turned 180°. about a vertical axis it can-abe re
rera'ted by ¿handle 14; vThese various adjustments
seated- upon- the slide frame with the cutter in
can.V 'be effected with 'thef parts assembled as
rparallelism to the other valve seat.
shown in the drawings and the valve, seat ground
Y»
2.._Mechanism forfacing off the inclined-seats
of a gate valve without requiring the removal of
When the facing off ofV one valve seat has been 60 the valve, said mechanism comprising a bedplate
completed, the main casing is f lifted vertically
Ahaving an Vopening therethrough and adapted to
(and with it all Aof the operating mechanism in
be ¿seated on the upper face of the open valve
cluding the hanger íh'ousing, the shaft casing and
casing, a main frame and means for mounting it
the cutter head) sufficiently to clear base 28 65 on and for sliding adjustment> relatively to the
of the main casing from engagement with the
bedplate,.said means comprising a guideway on
yor cut to the desired angle or degree.
two-dowel pins 21 and the main vcasing, reversed,
the bedplate and a slide >frame received there
i. e., turned 180.n about its vertical axis and then
within, means-for mounting the main kframe on
reseated> upon theseV dowel pins 21; The grind
ingv or cutting element 98 will now be presented
’ the >slide frame vfor adjustment therealong, va
hanger supported by and for vertical adjustment
facing the other valve vseat in precisely the same 70 VVrelatively-to the main frame saidhanger extend
relation as tothe three aforementioned adjust
ing-below> >the bedplate into adjacencyjto the
ments jasv it was vpresented to" the valve seatV al
ready faced AoflîY sothat'y the other `Valve seat Will
beífraçed >pff ,to _precisely thesanleangle and de
valve seats when the bedplate is seated >on the
' valve casing and a cutter carrying memberlpivr
75 oted. tothe lower end of said hangerwfor" angular
2,408,280
adjustment about -a horizontal axis located below
the bedpl'ate and adjacent the valve seats to
bring >the cutter into parallelism with the valve
seat to be tacedoñ, said >means for mounting vthe
mai-n frame on the slide `frame comprising inter
eng-aging elements spaced 1-80" apart in `a hori
zontal plane, for locating the main frame »on the
slide frame so that the main frame can be lifted
vertically from the slide frame to disenga'ge said
elements, said elements being 'duplications ‘of
each other 'whereby when the main frame is lifted
from off the slide frame and turned 180° about a
vertical axis it can be rescate-d upon :the vslide
frame with the Ycutter in `parallelism to the other
valve seat.
3. :Mechanism for facing zoll’ the inclined »seats
of a ,gate valve without requiring the removal
of the 'valve 'said vmechanism comprising ra bed
pla'te having an opening therethrough and adapt
valve "seats >when the bedplate :is :seated on the
valve casing 'and äa :cutter carrying casing pivoted
to -the flower end of said hanger for »angular ad
justment about a horizontal axis located :below
the `bedpla‘te and adjacent r»the valve fseats, said
cutter carrying :member »extending above the base
plate and means above the ybase :pla-te :for angu
larly 'adjusting the cutter carrying casing to bring
the A'cutter :into parallelism to the `valve vseat to
be'îac'ed yoff and cutter rotating mechanism »car
' ried with-in'said easing.
xE5. Mechanism -for facing -off `the inclined seats
of ‘a gate valve without requiring the removal »of
the valve said mechanism comprising a bedplate
»having an opening <therethrough 'and adapted to
be 'seated y'on the upper face of the open valve
casing, a mainframe and means Afor mounting
the mainframe for sliding "adjustment along the
bedplate, a hanger 'supported for verticaladjust..
ed to be seated on the upper face of the open 20 ment relatively thereto said 4hanger extending
valve casing, a main frame and vmeans ïfor mount
below the bed-plate into adjacency to the valve
ing it -on and for Asliding adjustment relatively
to the bedplate, said means comprising a .guide
seats when the bedplate is seated on the valve
casing and »a cutter carrying'casing «pivoted to
'way „on the bedplate l'and :a slide frame received
the lower endof Vsaid hangerfor angular adjust
therewithin, means -for mounting the main -f-rame 25 ment about 'a horizontal axis below `the bedplate
:on the >slide frame for ‘adjustment therea-long, a
and adjacent the valve seats, said cutter carry
member supported by and -for vertical adjust
ing member extending above the base plate and
.ment relatively to the main frame and hanger
means above the base plate for angularly adjust
extending below the lbedpla-te into adjacency -to
ing the cutter carrying casing to lbring the cutter
the valve seats when the bed-plate is seated on ‘
into parallelism to the valve seat to be faced pif
the valve casing and a fcutter Ícarrying member
and cutter rotating mechanism carried within
pivoted to vthe lower end -of said hanger for 'an
said casing.
.
gular adjustment about a horizontal axis located
'7. Mechanism for facing 01T the inclined seats
below the bedplate and. adjacent the valve seats
of a, gate valve without requiring the removal lof
to bring the cutter into „parallelism >with the valve
the valve said mechanism comprising ya fbedplate
seat to .be -faced off, said cutter carrying member
having an opening therethrough and adapted to
extending above the >base plate and means above
be seated on the upper face of »the open valve
the base .plate for angularly adjusting the cut
casing, a main frame having a base and `Walls
ter carrying member.
extending upwardly therefrom >and means `»for
4. >Mechanism for >’facing off the vinclined .seats 40 mounting the main -frame for sliding adjustment
of a gate valve without requiring `'the removal-of
along the bedplate, said means comprising Aa
the valve said mechanism comprising rabedplate
guid'eway ‘on the -bedplate and a slide frame re
having an opening therethrough and'adapfted to
ceived within the gui‘deway and means fortmount
be seated on the upper 'face of the open valve
ing the main l‘frame on the lslide frame, said last
casing, 'a main frame and means 4for mounting "e mentioned means comprising interengaging »ele
it on and 'for sliding adjustment `relatively .t0 the
ments on the slide frame'and »the base .of the-main
bedplate, said `means comprising .a 'guideway on
frame which locate the main frame on .the slide
the v-b‘edplate and a slide frame 'received there
frame and which permit the .main frame to vbe
within, 'means ‘for 'mounting -the main 'frame ',on
lifted oiî .from oif the slide frame, said elements
the slide frame 'for Yadjustment therealong, a
being located 180° apart `in a, horizontal plane
hanger supported iby ’and ‘for vertical adjust
and being duplications of -each other whereby lthe
ment relatively to the main 'frame ‘said ‘hanger
main frame can be lifted from off the slide frame
extending vbelow :the bedplate into laitljacency to
and turned 180°'about a vertical axis and rreseated
the valve seats when the bedplate fis “seated on
upon the ,slide frame, a hanger supported for
the valve 'casing and a ~cutter carrying member » vertical `adjustment relatively thereto said hanger
pivoted ‘to the lower end of -said 'hanger for 'an
extending below the bedplate Iinto adjacency .to
gula-r adjustment 'about 'a horizontal‘axis located
the valve'seats lwhen the -bedplate is seated .on
below the bedplate 4and adjacent kthe valve >seats
the valve casing and ‘a cuttercarrying'casing piv
toïbring the cutter ‘into parallelism >with the 'valve
oted to the lower end-of »said hanger for angular
seat'to‘be faced oiî.
60 adjustment about a horizontal .axis below the
â5. Mechanism >for facing loi’f the yinclined seats
bedplate and adjacent the valvefseatsy said cutter
‘of 'agate -`valve without >requiring >the removal of
carrying member extending above Ythe base plate
the valve ‘said :mechanism comprising a bedplate
and means above the lbase Dplate for angularly
having an >opening therethrough and adapted to
adjusting the cutter carrying casing to bring the
be seated on vthe Vupper face of the open valve 65 cutter into parallelism» to `the -valve seat to be
casing, -a `main 'frame 'having >a base and walls
faced >oil’ >and cutter` rotating mechanism 4carried
extending upwardly therefrom and means V'for
within said casing.
` y
mounting ’the main frame for sliding adjustment
8. Mechanism for :facing off the .inclined seats
'along "the Lbedplate, said means vcomprising a
or" a gate valve without requiring the removal of
‘guideway on the ïbedplate and la slide -frame re
the valve, Saidmechanismicomprising abedplate
ceived within 'the guideway and 'means for
having an vopening therethrough and yadapted to
mounting the main frame on lthe slide frame for
adjustment '.therealong, a hanger .supported îfor
be seated on the upper vface of the V»open valve
casing, a main frame and »means for mounting
vertical adjustment `relatively ¿thereto and ex- '
the latter en the xformer „comprising ïinterengag
"tending below v'the îbjedplateginto ¿adjacency .to .the i
ing elements on the main frame vand on the bed
2,408,280
` 9
10
plate which permit the main frame to be lifted
vertically to disengage said elements, said ele
other of the valve seats said means comprising
a slide frame adjustable along the bedplate and
ments being located on the frame and on the
terengaging means spaced 180° apart in the plane
parallel to the bedplate for holding the mainV
frame against movement relatively to the slide
bedplate, 180° apart in the horizontal plane and
being duplications of each other whereby the
main frame can be lifted freely and turned 180°
about a vertical axis and the elements reengaged,
a member supported from the main frame for
vertical adjustment relatively to the bedplate
a main frame seated on the slide frame and in
frame in a plane parallel to the bedplate »but per
mitting a movement of the main frame vertically
relatively to the slide frame to disengage said
and a cutter carrying member pivoted to said` 10 elements, said elements being duplications of each
other whereby when the cutter has completed
I first mentioned member for angular adjustment
the facing 01T of one seat, the main frame can be
about a horizontal axis to lbring the cutter into
lifted vertically and turned 180° about a vertical
parallelism with the valve seat to be faced off,
axis and reseated _to reengage said interengaging
whereby the two valve seats can be faced off in
succession to the same degree without requiring 15 elements without disturbing the aforementionedl
reference for the base plate or the adjusted posi
any change in the angular adjustment of the
tion of the slide frame, to thus present the cutter
cutter carryingV member.
in operative relation to the other valve seat.
9. Mechanism for facing off the opposed seats
11, Mechanism for facing off the opposed seats
of a gate valvewithout requiring the removal of
the valve said mechanism comprising a bedplate 20 of a gate valve without requiring the removal of
the valve said mechanism comprising a bedplate
adapted to be seated on the upper face of the
adapted to be seated on the upper face of the
open valve casing and which serves as the refer
open valve casing and which serves as the refer
ence for the bedplate and means for supporting
ence for the bedplate and means for supporting
a cutter from the bedplate in cooperative relation
to one or the other of said valve seats, said means 25
a cutter from the bedplate in cooperative relation .
to one or the other ofthe valve seats said means
comprising a base member seated on the bedplate
comprising a slide frame adjustable along the
and interengaging means spaced 180° apart in
bedplate and a main frame seated on the slide
the plane parallel to the bedplate for holding the
frame and interengaging means spaced 180° apart
base member against movement in a plane par
allel to the bedplate butpermitting a movement 30 in the plane parallel to the bedplate for holding
the main frame against movement relatively to
of the base member vertically relatively to the
the -slide frame in a plane parallel to the bedplate
bedplate to disengage said elements, said elements
but permitting a movement of ‘the main frame
being duplications of each other whereby when
vertically relatively to the slide frame to disen
the cutter has completed the facing off of one
gage said elements, said elements being duplica
35
seat, the base member can be lifted vertically and
tions of Veach other and means for adjusting the
turned 180° about a vertical axis and reseated to
angle of the cutter whereby when the cutter has
reengage said interengaging ' elements without-l
v«completed the facing off of one seat, the main
disturbing the aforementioned reference for the
bedplate, to thus present the cutter in operative` `frame can =be lifted vertically and turned 180°
40 about a vertical axis and reseated to reengage
relation to the other valve seat.
.
said vinterengaging elements vwithout disturbing v
10. Mechanism for facing off the opposed seats
the aforementioned adjustments or the aforemen
of a gate valve without requiring the removal of
tioned reference for the base plate, to thus pre
the valve said mechanism comprising a, bedplate
sent the cutter in operative relation to the other
adapted to be seated on the upper face of the
open valve casing as the reference for the bed 45 valve seat.
PHHJIP El. WILCOX.
plate and means for supporting a cutter from the
bedplatein cooperative relation to one of the
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