Improvements relating to Double Beat or Double Face Valves and Valve Chests and Valve Gear for Compound or other Steam Engines and parts connected therewith.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements relating to Double Beat or Double Face Valves and
Valve Chests and Valve Gear for Compound or other Steam
Engines and parts connected therewith.
I, GEORGE LEWIS LAMBERT, of 26, Alberta Terrace, Sherwood Rise, Notting-
ham, in the County of Nottingham, Mechanical Engineer, do hereby declare the
nature of this invention to be as follows:-
My invention and improvements relate to what is commonly known as
"Wolfs" compound steam engine with special reference to such as are controlled
and worked by commonly known Cornish or other form of double beat valves
or double face and double mitre valves; the valves are otherwise but generally
eight in number and consist of two high pressure cylinder steam valves and two
high pressure cylinder exhaust valves, two low pressure cylinder inlet or steam
valves and two low pressure cylinder condenser valves, those valves being usually
placed and divided into two steam valve boxes or valve chests, one valve box or
chest being placed at the top of the high pressure and low pressure cylinder
portways or steam passages and joined thereto and containing four valves
generally so placed and fixed as to be in a direct horizontal line, reading from
left to right or vice versa, commencing from the high pressure cylinder steam
valve and finishing with the condenser exhaust valve. The second or bottom
valve chest or box is also joined to the respective cylinder's steam and exhaust
steam passages or portways at the bottom thereof and also contains the same
number and same disposition of steam and exhaust valves as the hereinbefore
cited top valve box or chest; viz:-in direct horizontal line and corresponding
in all other respects as hereinbefore cited.
My invertion or improvements consist more particularly in the manner of
position and disposition of the respective eight valves which are severally and
independently placed in a new order or relatively situated one with the other
differing in their order and position from the position of those herein before
cited whereas four valves were placed direct in a horizortal line such four
valves are now disposed to perform the same work and functions as herein before
cited in two separate rows or two separate tiers, thus placing the hereinbefore
cited valves into two sets and both sets in a direct horizontal line; the steam
passages or portways on the respective cylinders being suitably placed hori
zontally between these two rows or two tiers. The upper two valves consist of
the high pressure steam valve and low pressure inlet valve placed vertically
over the herein before cited steam passages or steam portways or otherwise, and
the second row or second tier beneath those steam passages or portways and
thereby vertically beneath the herein before cited top row of valves, each valve
being placed in suitably formed separate valve chambers; the bottom row or
bottom tier containing as the first valve, the high pressure exhaust valve and
the second the low pressure condenser valve thus forming two separate divisions
and two separate rows or tiers of valve chambers in one steam chest or box
respectively fixed and attached to the top of the cylinder steam passages or port-

page_text: '
ways and also to the bottom of the steam passages or portways of each of the
steam cylinders and jointed in a similar manner as for valve boxes arranged in
the usual way. This new arrangement of the valves affords in all respects all
possible previous advantages, but at the same time permits of less waste steam
spaces and less cost of production and brings together the working parts more
compactly. Although the positions of the respective valves are changed, yet
such change in no way increases any disadvantages in any other parts or mech-
anical details therewith, but effectually diminishes what has hitherto been a
great steam loss as now existing in the horizontal line of the herein before cited
form of the usual settings of the four valves in each of the herein before cited
chests.
Another part of my improvements in these appliances relates to the forming
or dividing into two parts each of those herein before cited respective valve
boxes, that is to say, whereas four valves are placed in one steam chest as one
section or division, I now propose to divide those formerly formed steam chests
each into two separate steam boxes thus making two valve boxes for the top of
those respectively named cylinders and two for the bottom of the cylinders
forming in all four separated valve chests instead of two as previously used.
The respective positions of those which contain the condenser exhaust valves
boxes fixed on the respective cylinder port or steam passage flanges will be
varied in order to shorten the high pressure cylinder portway waste steam space,
for this end the low pressure cylinder portway flanges will be changed from the
horizontal to an angular face and placed and fixed at a suitable angular position
relative to and facing the steam portway of the high pressure cylinder, thus
enabling each valve box to be jointed independently and free of each other
without in any way affecting their usefulness, while offering greater freedom
for separate expansion and contraction of each set of valve boxes, the relative
positions of the respective herein before cited valves are disposed and placed to
work in each valve chest in exactly similar positions as herein before cited in the
commencement of the specification, but other alterations are necessitated hereto
in that the vertical inlet steam passage from high pressure to low pressure
cylinder which will be now cast on to the condenser valve chest box in a suitable
position independent thereof and separately from the opposite or contemporary
valve box thus forming a separate connection or section and dividing each from
its contemporary in the herein before cited first and second arrangements of valve
chests or valve boxes. This vertical steam passage instead of being in one sepa-
rate division can be further arranged so as to be formed in two equally divided
from the valve chamber centres separate suitably sized divisions extending from
the top valve chest box vertically to and joining with the respective passages of
like form and number suitably formed on the bottom steam chest as between or
middle position of the vertical high pressure cylinder steam inlet vertical pas-
sage to and from respective steam chests on the one side, and on the opposite
the vertical condenser exhaust passage to and from the herein before cited valve
chests thus bringing the valve chests centres closer together and thereby further
lessening waste steam spaces. The inlet high pressure cylinder steam is con-
veyed from the top to the bottom valve chest by a suitably devised passage or
portway situated in front of the valve chest parallel with the longitudinal centre
line of respective cylinders and as near the right angle valves transverse centre
line as consistent and which is in position vertically extending in front of the
high pressure cylinder exhaust valve downwards and joining the continuation
passage to the bottom of the high pressure cylinder steam valve of the bottom
valve box and in conjunction and proximity with which the condenser exhaust
steam passage is also placed (vertically) on the outside and opposite sides to
the high pressure passage, thereby forming a group of three or four according
to design or arrangement separate passages or otherwise and parallel with the
axis of the respective cylinder. The herein before cited condenser exhausting
passage conveying exhaust steam from the top condenser valve will be so suit-

page_text: ably arranged as to continue from the underside of top exhaust valve and verti-
cally downwards to the bottom valve chest, then pass over in front of the bottom
low pressure inlet valve and low pressure condenser valve parallel with the axis
of the cylinder and nearly at right angles with the transverse centre line of
the condenser valve, then passing down to a suitably formed branch-pipe or
passage into which both the herein before cited respectively named top and bottom
condenser valves join in beneath and under the bottom condenser valve.
Another part of my improvements relates to or consists of the working or
manner of actuating and giving motions to those respectively named steam and
exhaust valves. Whereas these are usually actuated and worked by spindles
passing through vertically formed glands and stuffing boxes placed in suitably
formed valve covers over the respective valves and attached to the said valves
and thereby give vertical working motion thereto, I now propose to give motion
and actuate these hereinbefore cited steam and exhaust valves through the inter-
vention of a horizontal axial partly rolling or to and fro rocking valve spindle
on the inner end of which is fixed a suitably formed single end boss rocking
lever which is attached to a suitably formed slotted sliding cross-head attached
to the spindle of each valve hereinafter described. In this cross-head is placed
and made to work freely a suitably formed die which is attached by a suitably
formed working pin fixed into the outer end of the before cited rocking lever
and rocking spindle. To the opposite outer end of this axial rolling or rocking
spindle is fixed and placed to work it, a suitably formed single end rocking
lever whereto is attached the valve rods communicating reciprocating or rock-
ing motion from either eccentrics or cams or other motions. Whereas heretofor
these rocking valve spindles have been adapted to work in the sides of and
through the respective valve chests in a horizontal position and at right angles
with the transverse centre line of the valve chests hereinbefore cited, and here-
after further explained, those rocking spindles or axial rolling valve spindles will
according to this invention be now placed in a suitable manner in and through
the respective steam and exhaust valve covers or steam chest covers which cover
and joint in a suitable manner to the herein before cited valve chambers, so that they
are in a horizontal position and also at right angles to the main transverse centre
line of the respective valve chests, these valve chest covers being fixed and
jointed with the faces and joint surfaces in a vertical line on the herein before
cited valve boxes or chests such faces to be placed and fixed parallel with the
transverse centre line of the respective cylinders. Consequently each axial
rolling or rocking valve spindle will be fixed and placed to work throughout in
a true horizontal line with the main centre line of cylinders and respectively
situated one above the other in such a manner that all the single outer end rock-
ing levers will be equally divided on each side of the respective valve boxes or
chests and will all work so as to lift up to open each steam and exhaust valve
and to close each steam and exhaust valve by a pull down motion from either
eccentrics or cam gear or other motion thus taking into account the weight of
each coupling valve rod and appliances therewith for closing or shutting the
respective steam and exhaust valves. The respective high pressure steam valves
or the top and bottom high pressure steam valves being otherwise worked and
automatically controlled by suitable cut off motion.
Another of my improvements in the herein before cited valve chest covers
consist in changing their positions from being at right angles with the trans-
verse centre of the cylinders as herein before cited, to that of the valve chest
faces and jointings to those being now placed parallel in line with the main centre
lines of the cylinders, thus bringing the axial rolling or rocking valve spindles
respectively parallel with the transverse centre line of the cylinders and accord-
ingly replacing the single end rocking levers parallel with the main centre line.
of the cylinders thus affording two alternative arrangements of the respective.
positions of the axial rolling or rocking valve spindles to meet varied changes
of other appliances and attachments giving motion to and connecting with them.

page_text: Another part of my improvements consists in arranging in a suitable and
symmetrical manner the requisite hand levers or commonly called valve gear
hand gearing for controlling by hand each separate steam or exhaust valve.
Hitherto such handles or hand levers have been so formed as to couple up or
connect with the valve rods, giving motion to the herein before cited vertical
valves spindle. These are now not required but in their stead are suitably
arranged a number of vertical hand bell crank levers, rocking to and fro on and
axial from one common centre. The several hand levers will correspond in
number with that of the steam and exhaust valves and each one will be radially
free to rock and lift or close the respective valves at will; each hand lever will
be telescopically mounted, one within the other, four being telescopically
mounted to the left and four being telescopically mounted to the right. At
right angles with the vertical hand lever will be formed and joined telescopically
a corresponding bell crank lever with a forked outer end loosely grasping cen-
trally the respective steam and exhaust valve rods; and these forked ends will
be engaged underneath suitably formed circular solid formed rings or solid formed
collars on the before cited steam and exhaust valve rods, yet such are free of
the forked end bell crank levers and move at will without affecting the herein-
before cited hand levers, and the hand levers can be free to engage to lift or
lower the respective valve rods by hand at will, each being independent from
each other to act and work without receiving any motion from the usual moving
vibratory motions, the several hand levers herein before cited remaining quite
motionless and inoperative during the working of the valve rods of the steam
and exhaust valves, yet when called for use such can be instantly applied sever-,
ally or collectively at will to actuate any or all of the before cited steam and"
exhaust valve rods in any desired manner for controlling the working motion of
the main engines.
Another part of my improvement consists and relates to the hereinbefore cited
Cornish valve, or other form of double beat or double face and mitre valves and
relates to a better appliance and attachment for coupling up the valves with
the horizontal rocking spindle and lever herein before cited in order to give the
working motion for opening and closing the respective valves. They have been
usually connected to and coupled up with a vertical valve spindle passing through
a gland and vertical stuffing box and secured to the central bosses of the respec-
tive valves through which the valve spindle passes and is suitably secured thereto,
or as herein before cited passing through the sides of the valve boxes and rock-
ing valve spindles and levers, secured to the respective valves by toggle sliding
cross heads and joints, thereby lifting and operating the herein before cited
Cornish or double beat valve.
By this invention I use a central sliding slotted cross head of suitable form,
containing a parallel formed sliding slot, or parallel formed sliding working
groove of suitable size, the two opposite ends being closed.
A working sliding die of suitable form is placed in the spot and made to
work freely. A central working eye or pin aperture engages to work on a suit-
able working pin centrally fixed on a single rocking lever end eye, as herein-
before cited. The sliding slotted cross-head is formed at the bottom side thereof,
with a flange circular on concentric in plan of suitable diameter and thickness
whilst the sliding slotted part is in plan a suitably formed parallelogram. The
above mentioned circular bottom flange is made suitably to lie loosely on the
crown of the respective valves both vertically and sideways; a certain amount
of play being given each way so as to enable the valve to have perfect freedom
to adapt its faces and mitres to the corresponding seatings and so allow the
valve to accurately seat radially and horizontally. The circular crown of the
valve is formed so as to contain a suitably formed circular or concentric recessed
flange supported on ribs on the circular crown of the valve suitably proportioned
so as to provide ample area of apertures for the ingress and egress of the steam
thereto and therefrom of those upper inner valve faces or mitres. The recess

page_text: in the inner side of the recessed flange herin before cited will be formed with
suitable lathe cut thread or screw formed fine threads in which will be engaged
a suitably formed circular or concentric threaded ring or
screw cut nut.
Betwixt the respective surfaces of the herein before cited crown of the valve and
the inner surfaces of the herein before cited circular threaded ring or nut will
be loosely placed to work freely the herein before mentioned circular or concen-
tric slotted cross head flange for lifting .closing and controlling the working of
the respective valves.
Another part of my invention consists of and relates to another form of sliding
slotted cross head, the slotted sliding groove and sliding die being somewhat
similar in form excepting the two ends thereof which in this case are open ends.
It is here placed on the side of the sliding cross head instead of centrally as
before mentioned. The valve in this case is suitably coupled therewith by a short
vertical spindle at the bottom end, and at the top or opposite end passes through
a suitably formed aperture in the sliding cross head and secured therewith so
as to work freely the respective valves.
1
T
1000
HERBERT HADDAN & Co.,
Agents to Applicant.
Improvements relating to Double Beat or Double Face Valves and
Valve Chests and Valve Gear for Compound or other Steam
Engines and parts connected therewith.
I, GEORGE LEWIS LAMBERT, of 26, Alberta Terrace, Sherwood Rise, Notting-.
ham, in the County of Nottingham, Mechanical Engineer, do hereby declare the
nature of this invention, and in what manner the same is to be performed to be.
particularly described and ascertained in and by the following statement:-
"
-
My invention and improvements relate to what is commonly known as
Wolfs" compound but are also applicable to other designs of steam engine
but with special reference to such as are controlled and worked by commonly
known Cornish or other form of double beat valves or double face and double
mitre valves; the valves are otherwise generally eight in number and consist
of two high pressure cylinder steam valves and two high pressure cylinder
exhaust valves, two low pressure cylinder steam inlet or steam valves and two
low pressure cylinder condenser valves, these valves being usually placed and
divided into two steam valve boxes or valve chests, one valve box or chest being
placed at the top of the high pressure and low pressure cylinder portways or
steam passages and joined thereto and containing four valves generally so placed
and fixed as to be in a direct horizontal line, reading from left to right or vice
versa, commencing from the high pressure cylinder steam valve and finishing
with the condenser exhaust valve. The second or bottom valve chest or box
is also joined to the respective cylinder's steam and exhaust steam passages or
portways at the bottom thereof and also contains the same number and same dis-
position of steam and exhaust valves as the hereinbefore cited top valve box or
top chest; viz. in direct horizontal line and corresponding in all other respects
as herein before cited.
My invention or improvements consist more particularly in the manner of posi-
tion and disposition of the respective eight valves which are severally and inde-

page_text: pendently placed in a new order or relatively situated one with the other differ-
ing in their order and position from the position of those herein before cited.
In order that my invention may be more readily understood I have appended
the accompanying drawings in which:-
Fig. 1 is a vertical sectional elevation of the valve boxes showing valves and
valve gear. Fig. 2 is a vertical side elevation thereof, only one valve lever
and connecting rod and hand lever being shown, the others removed. Fig. 3
is a horizontal sectional plan through cylinder ports. Fig. 4 is a telescopic
arrangement of hand levers and bell crank levers. Fig. 5 is a vertical elevation
partly in section showing an alternative arrangement of valve chest covers and
valve-rocking spindles, also showing the low pressure steam connection between
the top and bottom tiers of valves by two pipes or two tubes or portways, as in
plan Fig. 5 instead of by one as in Fig. 1. Fig. 6 is a sectional plan through
cylinder ports of Fig. 5 showing the two, tubes, pipes or portways. Fig. 7 is a
vertical sectional elevation showing alternative arrangement of separately formed
valve boxes or valve chambers and connections to cylinders. Fig. 8 is a hori-
zontal plan of the same partly in section. Fig. 9 is a vertical sectional elevation
of one of the double beat valves with circular and concentric screw threaded
nut and attachment. Fig. 10 is a sectional plan thereof. Fig. 11 is a plan of
the slotted sliding cross head of the valve with circular and concentric attach-
ment, but without screw-threaded nut attachments. Fig. 12 shows in horizontal
sectional plan the arrangement of steam inlet and other parts of the valves.
Fig. 13 is a plan view and Figs. 14 and 15 are elevations at right angles to
one another of another form of sliding slotted cross head and die.
Whereas four valves were placed direct in a horizontal line such four valves 2,
3, 4, 5 are now disposed to perform the same work and functions as hereinbefore
cited in two separate rows or two separate tiers, thus placing the herein before
cited valves in two sets and both sets in a direct horizontal line; the steam
passages or portways 7, 8 on the respective cylinders being suitably placed hori-
zontally as between these two rows or two tiers. The upper two valves consist
of the high pressure steam valve 2 and the low pressure inlet valve 3 placed
vertically over the herein before cited steam passages or steam portways 7, 8 or
otherwise, and the second row or second tier beneath those steam passages or
portways and thereby vertically beneath the herein before cited top row of valves,
each valve being placed in suitably formed separate valve chambers; the bottom
row or bottom tier containing as the first valve, the high pressure exhaust
valve 4 and the second the low pressure condenser valve 5 thus forming two
separate divisions and two separate rows or tiers of valve chambers in one steam
chest or box G respectively fixed and attached to the top of the cylinder steam
passages or portways and also to the bottom of the steam passages or portways
of each of the steam cylinders and jointed in a similar manner as for valve
boxes arranged in the usual way. This new arrangement of the valves affords
in all respects all possible previous advantages, but at the same time permits
of less waste steam spaces and less cost of production and brings together the
working parts more compactly. Although the positions of the respective valves
are changed, yet such change in no way increases any disadvantages in any other
parts or mechanical details therewith, but effectually diminishes what has hitherto
been a great steam loss as now existing in the horizontal line of the hereinbefore
cited form of the usual settings of the four valves in each of the hereinbefore
cited chests.
Another part of my improvements in these appliances relates to the forming
or dividing into two parts each of those herein before cited respective valve
boxes 6, that is to say, whereas four valves are placed in one steam chest as one
section or division, I now propose to divide those formerly formed steam chests
each into two separate steam boxes or two separate steam chests thus making two
valve boxes or two separate valve chests for the top of those respectively named
cylinders and two for the bottom of the cylinders forming in all four separated

page_text: -valve boxes or four steam chests instead of two as previously used. The res-
pective positions of those boxes which contain the condenser exhaust valves fixed
on the respective cylinder port of steam or exhaust passage flanges will be varied
in order to shorten the waste steam space of the portway 7 of the high pressure
cylinder 9. For this end the flanges of the portway 8 of the low pressure
cylinder 10 (see Figs. 7 and 8) will be changed from the horizontal to an angular
face and placed and fixed at a suitable angular position relative to and facing
the steam portway 8 of the high pressure cylinder 9, thus enabling each valve
box to be jointed independently and free of each other without in any way affect-
ing their usefulness, while offering greater greater freedom for separate expan-
sion and contraction of each set of valve boxes, the relative positions of the res-
pective herein before cited valves are disposed and placed to work in each valve
chest in exactly similar positions as hereinbefore cited in the commencement of
the specification, but other alterations are necessitated hereto in that the vertical
inlet steam passage 15 from high pressure to low pressure cylinder will be now!
cast on to the condenser valve chest box in a suitable position independent
thereof and separate from the opposite or contemporary valve box thus forming
a separate connection or section and dividing each from its contemporary in
the hereinbefore cited first arrangement of valve chests or valve boxes, This
vertical steam passage 15 instead of being in one separate division can be further
arranged so as to be formed in two separate and suitably sized divisions, equally
spaced from, the valve chamber centres extending from the top valve chest verti-
cally to and joining with the respective passages of like form and number suit-
ably formed on the bottom chest and occupying a middle position between the
vertical high pressure steam inlet vertical passage 14 to and from the respective
steam chests on the one side, and the vertical condenser exhaust passage 16 to
and from the hereinbefore cited valve chests on the opposite side, (as shown for
example in Figs. 5 and 6) thus bringing the valve chest centres closer together
and thereby further lessening waste steam spaces. The steam for the high
pressure cylinder is conveyed from the top to the bottom valve chest by a suitably
devised passage or portway 14 situated in the side of the valve chest parallel
with the longitudinal centre line of the respective cylinder and as near the
transverse centre line of the valve as consistent. This passage 14 may extend
(Fig. 5) in line and vertically with the high pressure cylinder exhaust valve down-
wards to join the continuation passage to the bottom of the high pressure cylinder
steam valve of the bottom valve box. The condenser exhaust steam passage 16
is also placed (vertically) on the outside or opposite side to the high pressure
passage thereby forming together with passages 14 and 15 a group of three or
four (according to design or arrangement) separate passages, parallel or other-
wise with the axis of the respective cylinder. The herein before cited condenser
exhaust passage 16 conveying exhaust steam from the top condenser valve can
be suitably arranged (Fig. 4) so as to continue from the underside of the top
exhaust valve and vertically downwards to the bottom valve chest, continuing
to pass by the side respectively of the bottom low pressure inlet and low pressure
condenser valve, then passing down to a suitably formed branch pipe or passage
into which both the hereinbefore cited respectively named top and bottom con-
denser valves join in beneath and under the bottom condenser valve.
In further explanation of the drawing, 12 is the steam inlet and 13 the exhaust
outlet or passage to the condenser or otherwise. 11 represents valve chest covers
or doors with rocking spindles, 18, plugs in the valve chest casing. 17 expan-
sion joints in the pipes 14, 15, 16.
Another part of my improvements relates to or consists of an improvement
upon the existing working or manner of actuating and giving motions to those
respectively named steam and exhaust valves. Whereas these are usually actu-
ated and worked by vertical spindles passing through vertically formed glands
and stuffing boxes placed in suitably formed valve covers over the respective
valves and attached to the said valves and thereby give vertical or otherwise

page_text: working motion thereto, I now propose to give motion and actuate these herein-
before cited steam and exhaust valves through the intervention of a horizontal
axial partly rolling or rocking to and fro rocking valve spindle 19 on the inner
end of which is fixed a suitably solidly together formed single end boss rock-
ing lever 20 which is attached to a suitably formed slotted sliding cross head 21
attached to the spindle of each valve hereinafter described. In this cross head
is placed and made to work freely a suitably formed die 22 which is attached
by a suitably formed working pin 23 fixed into the outer end of the before cited
solidly formed rocking lever and rocking spindle.
24 is a radially surfaced formed guide for the cross head 21 and 25 is a circular
and cylindrical screw threaded collar nut or ring for connecting the cross head 21
to the valve. 25¹ is a flange on the bottom of the cross head and 26 represents
the valve seat faces.
To the opposite outer end of this axial rolling or rocking spindle is fixed and
placed to work it, a suitably formed single end rocking lever 27 whereto is
attached the valve rod 28 communicating reciprocating or rocking motion from
either eccentrics or cams or other motions. Whereas previously to the present
method the rocking valve spindles have been adapted to work in the sides of and
through the respective sides of the valve chests in a horizontal position and
generally at right angles with the longitudinal centre line of the valve chests
herein before cited and hereafter further explained, the rocking spindles or axial
rolling valve spindles 19 according to. this invention will now be placed in a
suitable manner in and through suitably formed stuffing boxes in the respective
steam and exhaust valve covers or steam chest covers 11 which cover and joint
in a suitable manner to the herein before cited valve chambers so that they are
in a horizontal position and also fixed parallel respectively with either the trans-
verse or longitudinal centre line of cylinders and at right angles to either of the
main respective centre lines of the respective valve chests. These valve chest
covers 11 are fixed and jointed with the faces and joint surfaces in a vertical
line on the hereinbefore cited valve boxes or chests and such faces are placed
and fixed parallel respectively with either the transverse or longitudinal centre
plane of the respective cylinders.
Consequently when the valve chest covers are parallel with the transverse line
of the cylinders as in Figs. 1 to 3. each axial rolling or rocking valve spindle
will be fixed and placed to work throughout in a true horizontal line parallel
with the main horizontal centre line which intersects the axes of the two cylin-
ders and respectively situated one above the other and in such a manner that all
the single outer end rocking levers will be equally divided on each side of the
respective valve boxes or chests and will all work so as to lift up to open each
steam and exhaust valve and to close each steam and exhaust valve by a pull
down motion from 'either eccentric or cam gear on shaft 29 or by other motion,
thus taking into account the weight of each coupling valve rod and appliances
therewith for closing or shutting the respective steam and exhaust valves. The
respective high pressure steam valves or the top and bottom high pressure steam
valves are otherwise worked and automatically controlled by suitable cut off
motion 30.
Thus one of my improvements relating to the herein before cited valve chest
covers consists in changing or varying their positions from being at right angles
with the transverse or parallel with the longitudinal centre line of the cylinders
as hereinbefore cited and as in Figs. 5 and 6 to that of being now placed parallel
to each other in parallel line with the main transverse or at right angles with
the longitudinal centre lines of the cylinders as in Figs. 1 to 3, thus bringing
the axial rolling or rocking valve spindles respectively parallel with the longi-
tudinal and at right angles with the transverse centre line of the cylinders and
accordingly replacing the position of the single end rocking lever parallel with
the main transverse centre line of the cylinders thus affording two alternative
arrangements of the respective positions of the axial rolling or rocking valve

page_text: spindles to meet the varied changes of other appliances and attachments giving
motions to and connecting with them.
Another part of my improvements consists in arranging in a suitable and
symmetrical manner the requisite hand levers or commonly called valve gear
hand gearing for controlling by hand each separate steam or exhaust valve.
Hitherto such handles or hand levers have been so formed as to couple up or
connect with the valve rods giving motion to the herein before cited vertical
valve spindles. These are not now required but in their stead are suitably
arranged a number of vertical hand bell crank levers 31, 32 rocking to and fro
on and radial from one common centre line. The several hand levers will
correspond in number with that of the steam and exhaust valves and each one
will be radially free to rock and lift or close the respective valve at will; the
hand levers or their hub sleeves will be telescopically mounted, one within the
other, four being telescopically mounted to the left and four being telescopically
mounted to the right, as in Fig. 4. At right angles with the vertical hand
lever 31 will be formed and joined the corresponding lever 32 with a forked outer
end loosely grasping centrally the respective steam and exhaust valve rod 28,
and these forked ends will be engaged underneath suitably formed circular solid
formed rings or solid formed collars 33 on the before cited steam and exhaust
valve rods 28, yet such are free of the forked end bell crank levers and move
at will without affecting the herein before cited hand levers, and the hand levers
can be free to engage to respectively lift or lower the respective valve rods by
hand at will, each being independent from each other to act and work without
receiving any motion from the usual moving vibratory motions, the several hand
levers hereinbefore cited may remain quite motionless and inoperative during
the working of the valve rods of the steam and exhaust valves, yet when required
for use they can be instantly applied severally or collectively at will to actuate
any or all of the before cited steam and exhaust valve rods in any desired manner
for controlling the working motion of the main engine.
Another part of my improvement consists and relates to the hereinbefore
cited Cornish valves, or other form of double beat or double face and mitre
valves and relates to a better appliance and attachment for coupling up the
valves with the horizontal rocking spindle and solid formed lever herein before
cited in order to give the working motion for opening and closing the respective
valves. The valve has been usually connected to and coupled up with a vertical
valve spindle which passes through a gland and vertical stuffing box and is
secured to the central boss of the valve through which the valve spindle passes
and is suitably secured thereto. Or as herein before cited, rocking valve spindles
passing through the sides of the valve boxes have been secured to the respective
valves by toggle sliding cross heads and joints, thereby lifting and operating the
herein before cited Cornish or double beat valves.
By this invention I use a central slotted sliding cross head 21 of suitable form,
containing a parallel formed sliding slot, or parallel formed sliding working
groove of suitable size the two opposite ends being closed.
A working sliding die or sliding movable block 22 of suitable form is placed
in the slot or sliding groove and made to work freely. A central working eye
or pin aperture engages to work on a suitable working pin 23, centrally fixed
on the end eye of the single rocking lever 20 solidly formed to the valve spindle
as hereinbefore cited. The sliding slotted cross head 21 is formed at the bottom
side thereof, with a flange 25' circular or concentric in plan of suitable diameter
and thickness, whilst the sliding slotted part is in plan a suitably formed paral-
lelogram. The above mentioned circular bottom flange 251 is made suitably to
lie loosely on the crown of the respective valve both vertically and sideways;
a certain amount of play being given each way so as to enable the valve to have
perfect freedom to adapt its faces and mitres to the corresponding seatings and
so allow the valve to accurately seat radially and horizontally. The circular
crown of the valve is formed so as to contain a suitably formed circular or con-

page_text: centric recessed flange supported on ribs on the circular crown of the valve
suitably proportioned so as to provide ample area of apertures for the ingress
and egress of the steam thereto and therefrom of those upper inner valve faces
or mitres. The recess in the inner side of the recessed flange herein before cited
will be formed with a suitable lathe-cut thread or die-cut fine threads in which
will be engaged a suitably formed circular or concentric threaded ring or screw-
cut nut. Betwixt the respective surfaces of the hereinbefore cited crown of the
valve and the inner surfaces of the herein before cited circular threaded ring or
nut will be loosely placed to work freely the herein before mentioned circular or
concentric slotted cross head flange 251 for lifting closing and controlling the
working of the respective valves and also for attaching and detaching the slotted
cross head to and from the Cornish or double beat valve.
Another modification of my invention illustrated in Figs. 13 to 15, consists
of and relates to another form of slotted sliding cross head, the slotted sliding
groove and sliding die being similar in form to the one herein before described
excepting the two ends of the groove which in this case have open ends. It
is here placed on the side of the hub or cross head boss instead of centrally as
before mentioned. The valve in this case is suitably coupled therewith by a
short vertical spindle at the bottom end and at the top or opposite end the
spindle passes through a suitably formed vertical aperture in the hub or sliding
cross head boss and is secured therewith so as to freely work the respective valve.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is―
The improvements relating to Cornish double beat or double face valves and
valve chests and valve gear for compound. or other steam engines and parts con-
nected therewith consisting in :-
1. The placing of the high pressure steam valve and also the low pressure
inlet valve both in a horizontal line or in a separate tier or row, in line with
each other, and the placing of the high pressure exhaust valve and the low pres-
sure condenser valve both in horizontal line or separate tier or row in line with
each, and each also vertically or nearly so under each respective before named
valve, the whole being situated and placed as four valves in a group in one
separate top valve box and similarly placed in position to each of the above named
valves also forming four valves in another group separately fixed and working
in the corresponding bottom valve box in the manner substantially as shown on
the drawings.
2. The position and attachment of the external steam inlet main portway
passing down over the front of the high pressure exhaust valve and placed parallel
with the main longitudinal centre line which intersects the axes of the steam
cylinders through which portway the steam is carried to the one and other of
the correspondingly situated valve box, and together with the herein before cited
steam inlet main portway, a similarly formed external exhaust main portway
passing down from the low pressure inlet valve in front of and beneath the low
pressure condenser valve or otherwise and which also is placed parallel with
the main longitudinal centre line which intersects the axes of the steam cylin-
ders in the manner substantially as shown in the drawings.
3. The grouping together side by side, in close and attached proximity to each
other, in line and forming with the axis of the respective valves a common
centre line, at an equal distance apart, of three separately formed respectively
named main steam inlet, steam inlet into low pressure cylinder and condenser
exhaust outlet, tube, pipe or portways to and from each valve box, the whole
arrangement to enable such to be all covered over in one group, joined together,
and protected from loss of heat by radiation, in the manner substantially as
shown in the drawings.
4. The several working rocking or vibratory valve spindles of the herein before

page_text: cited respective Cornish or other double beat valves, placed and fixed to work
through each of the respective named valve box or steam chest covers and
stuffing boxes, the position of which spindles are in parallel line with the main
longitudinal and at right angles with the transverse centre line of the steam
cylinders of either single or compound engine, the valve box covers at their
jointing faces being at right angles with the longitudinal and parallel with the
transverse centre line of the cylinders of either single or compound engine
cylinders in the manner substantially as shown on the drawings.
5. The several working, rocking, vibratory valve spindles of the herein before
cited respective Cornish or other double beat valves placed and fixed to work
through each of the respective named valve box covers and stuffing boxes the
position of which spindles are at right angles with the longitudinal and parallel
with the transverse centre line of the single or compound cylinder, the valve
box covers of which are at their jointing faces at right angles to the transverse
and parallel with the main longitudinal centre line of the single or compound
engine cylinder in the manner substantially as shown in the drawings.
6. The method and manner whereby the rocking vibratory valve spindle is
attached and detached, and also made to work the respective Cornish or other
double beat valves through the medium of the parallel formed faces of a cen-
trally fixed slotted cross head in combination with a sliding movable die placed
and fixed on together and made to screw and unscrew with a circular and con-
centric screw threaded attachment jointly to and securing each to each other on
the top of the respective named Cornish and other double beat valve in the
manner substantially as shown on the drawings.
7. The solidly forged interior valve rocking lever made and formed together
in one part with the rocking or vibrating spindle or otherwise manufactured of
whatever material, the whole constituting one solid undivisable working rock-
ing valve spindle and rocking lever attached and secured to work jointly through
the intervention of and in combination with a sliding movable die in the herein-
before cited slotted cross head for giving motion and actuating the respective
herein before cited Cornish or double beat or other valves.as shown in the
drawings.
8. The circular or radially formed slotted cross head guide, the flanges and
jointing faces of which are radially or circularly formed so as to correspond with
the interior radial or circular formed inner attaching surfaces of the respective
valve box or valve chest whereby the said inner working parts are rapidly
attached and detached and also less waste spaces are obtained.
9. The alternative method or modification in lieu of the circular concentric
screw threaded attachment or the screwing and unscrewing of the slotted cross
head by the former described method, consisting in a short direct coupling
spindle which is coupled to a similar form of sliding cross head but which should
be slightly out of centre line vertically to that of the central. cross head axis,
but centrally to the double beat valve and attached to the same by the usual
forms of adjusting screw and nuts in all respects giving similar working motion
to the respective Cornish valve as in the manner substantially as shown in the
drawings.
10. The placing and fixing in working positions of the respective named valves
in pairs in a separate valve box or separately formed valve chests or chambers
detached each from the corresponding one, each of which are detached and fixed
separately to the respective steam or main cylinder portways of either single or
compound engine cylinders and accordingly forming a group of two separate
valve boxes or two separately formed valve chests or chambers for the group of
the top valve boxes and a similar and corresponding group for the opposite or
bottom valve boxes in the manner substantially as shown in the drawings.
11. The forming and attaching of a separate or single exhaust port to one of
each of the before named top and bottom valve boxes, on the right side of the top
and bottom valve box, which single exhaust port is formed solidly together with

page_text: the main valve box casting extending in a vertical manner by the side of the
valve box so as to convey the inlet steam to and fro into the respective valve
chambers in the manner substantially. as shown on the drawings.
12. The forming of modifications of the afore-named vertical outside low
pressure inlet into valve vertical chamber so that it is divided into two sepa-
rate forms or vertical or otherwise divisions partaking generally of a circular
form, or double tubes or double inlet pipes cast and solidly formed, combined;
and made together side by side in one with the separate valve box or separate
valve chamber casting in the manner substantially as shown in the drawings.
13. The respective several single forked ended levers working and engaging
with a solid or other collar on the respective valve coupling rods, for controlling
the working of the valves by hand, having a rocking or vibrating action or motion
from a common centre, the hubs being so formed as to suitably telescopically
encase and enclose one another and thereby become a group of common levers
having a common axis and separate action and forming one common horizontal
line, substantially in the manner shown on the drawings.
14. The improvements in and relating to Cornish double beat valves and valve
chests and valve gear for compound or other steam engines in combination sub-
stantially as herein before set forth as in the manner illustrated in the several
figures of drawings hereunto annexed.
Dated this 21st day of June 1900
HERBERT HADDAN & Co.,
Agents to Applicant
18, Buckingham Street, Strand, W.C., London.