Improvements in or relating to Vertical Tandem Compound Steam Engines or other Arrangements to Two, Three, or More High- pressure Cylinders on one Shaft and Apparatus for Regulating the Speed of same and Automatically Lubricating the necessary parts.
Year: 1899

page_text: Date of Application, 17th Aug., 1899
Complete Specification Left, 6th Mar., 1900-Accepted, 17th Aug., 190G
Improvements in or relating to Vertical Tandem Compound Steam
Engines or other Arrangements to Two, Three, or More High-
pressure Cylinders on one Shaft and Apparatus for Regulating the
Speed of same and Automatically Lubricating the necessary parts.
I. FRANK EVERARD MUSGRAVE, of the Firm of John Musgrave and Sons
Limited," of Globe Iron Works, Bolton, in the County of Lancaster, Engineers,
Millwrights, Boiler Makers, and Iron Founders, do hereby declare the nature of
my said invention to be as follows:-
-
This invention refers to improvements in or relating to vertical tandem com-
pound steam engines or other arrangements to twe, three, or more high-pressure
cylinders on one shaft and apparatus for regulating the speed of same and auto-
matically lubricating the necessary parts and is constructed and arranged so that
two, three, or more vertical engines may be coupled in successive order on one
crank shaft to produce an uniform motion necessary for driving dynamos for
electric lighting and other purposes. On a foundat in or framework of box or
other form are mounted enclosed frames or stands provided with hinged doors or
other covers to allow of access when necessary to repair or attend to the parts
contained therein; the said hinged doors or other covers being secured in any
convenient manner. On the upper end of each frame or stand is mounted a
low-pressure cylinder on the top of which is located a high-pressure cylinder,
both being provided with pistons attached to one piston rod coupled to a cross-
head provided with slide-blocks mounted on slide-bars in the enclosed frames or
stands. The piston rod crossheads are coupled to balanced sweep cranks on the
crank shaff by means of connecting rods. The high-pressure and low-pressure
cylinders are provided with valves on the "Corliss or rotary principle-single
or double ported-coupled direct to the crank shaft by eccentrics, eccentric and
other rods, and "wrist" plates mounted on the cylinders, in such a manner so
as to give a positive motion to the "Corliss" steam valves, thereby producing
a quick opening for the admittance of steam to the cylinders and dispensing
with "trip" gear for quick speed engines; the "Corliss" exhaust valves being
operated by eccentrics, eccentric and other rods from the crank shaft. The crank
shaft is enclosed in casings secured in any convenient manner to the foundation
or framework of the engines. Each high-pressure cylinder is provided with a
throttle valve coupled by adjustable or other rods to a shaft disposed in fixings
on the before mentioned frames or stands, and arranged so as to be operated
from one governor driven by a chain or other means from the crank shaft. By
thus providing each high-pressure cylinder with a separate throttle valve a much
better or closer governing is effected than is possible with one main throttle
valve for three or more cylinders as the admission of steam for each high-
pressure cylinder is immediately under the control of the governor. The throttle
valves are constructed on the balanced principle, each valve and seat being of
equal diameter, the centre stem connecting the upper and lower portions of the

page_text: valve being provided with an opening or passage to admit of steam on both sides
or ends of the valve thus making the same perfectly equilibrium, by which it
will be readily and speedily effected by the least action of the governor caused
by varying load. The throttle valves may be provided with serrated teeth so as
to produce the least possible amount of opening for the passage of steam when
a light load is to be driven, thereby preventing undue shock and ensuring
uniform and regular driving. For automatically lubricating the movable parts,
wearing surfaces, and the like of vertical engines the foundation or framework
of box or other form is provided with oil wells or reservoirs in which are located
a pump or pumps actuated in any convenient manner from the crank shaft or
other convenient part of the engines. The pump or pumps is fitted with valve-
boxes and valves, and the oil or lubricant is forced up pipes and through open-
ings or other equivalents to the parts to be lubricated from whence it flows back
to the before mentioned oil wells or reservoirs to be used over again, thereby sup-
plying a continuous flow of oil or lubricant as long as the engines are in motion.
Dated the 16th day of August 1899.
EDMUND CHADWICK,
Agent.
Improvements in or relating to Vertical Tandem Compound Steam
Engines or other Arrangements to Two, Three, or More High-
pressure Cylinders on One Shaft and Apparatus for Regulating the
Speed of same and Automatically Lubricating the necessary parts.
I, FRANK EVERARD MUSGRAVE, of the Firm of John Musgrave and Sons
"Limited," of Globe Iron Works, Bolton, in the County of Lancaster, Engineers,
Millwrights, Boiler Makers, and Iron Founders, do hereby declare the nature of
my said invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement:—
This invention refers to improvements in or relating to vertical tandem com-
pound steam engines or other arrangements to two, three, or more high-pressure
cylinders on one shaft and apparatus for regulating the speed of same and auto-
matically lubricating the necessary parts and is constructed and arranged so that
two, three, or more vertical engines may be coupled in successive order on one
crank shaft to produce an uniform motion necessary for driving dynamos for
electric lighting and other purposes. On a foundation or framework of box or
other form are mounted enclosed frames or stands provided with hinged doors or
other covers to allow of access when necessary to repair or attend to the parts
contained therein; the said hinged doors or other covers being secured in any
convenient manner. On the upper end of each frame or stand is mounted a
low-pressure cylinder on the top of which is located a high-pressure cylinder,
both being provided with pistons attached to one piston rod coupled to a cross-
head provided with slide-blocks mounted on slide-bars in the enclosed frames or
stands. The piston rod crossheads are coupled to balanced sweep cranks on the
crank shaft by means of connecting rods. The high-pressure and low-pressure
cylinders are provided with valves on the "Corliss or rotary principle-single
or double ported-coupled direct to the crank shaft by eccentrics, eccentric and
other rods, and wrist plates mounted on the cylinders in such a manner so
as to give a positive motion to the "Corliss" steam valves, thereby producing
a quick opening for the admittance of steam to the cylinders and dispensing
with trip" gear for quick speed engines; the "Corliss" exhaust valves being
.

page_text: operated by eccentrics, eccentric and other rods from the crank shaft. The crank
shaft is enclosed in casings secured in any convenient manner to the foundation
or framework of the engines. Each high-pressure cylinder is provided with a
throttle valve coupled by adjustable or other 1ods to a shaft disposed in fixings
on the before mentioned frames or stands, and arranged so as to be operated
from one governor driven by a chain or other means from the crank shaft. By
thus providing each high-pressure cylinder with a separate throttle valve a much
better or closer governing is effected than is possible with one main throttle
valve for three or more cylinders as the admission of steam for each high-
pressure cylinder is immediately under the control of the governor. The throttle
valves are constructed on the balanced principle, each valve and seat being of
equal diameter, the centre stem connecting the upper and lower portions of the
valve being provided with an opening or passage to admit of steam on both sides
or ends of the valve thus making the same perfectly equilibrium, by which it
will be readily and speedily effected by the least action of the governor caused
by varying load. The throttle valves may be provided with serrated teeth so as
to produce the least possible amount of opening for the passage of steam when
a light load is to be driven, thereby preventing undue shock and ensuring
uniform and regular driving. For automatically lubricating the movable parts,
wearing surfaces, and the like of vertical engines the foundation or framework
of box or other form is provided with oil wells or reservoirs in which are located
a pump or pumps actuated in any convenient manner from the crank shaft or
other convenient part of the engines. The pump or pumps is fitted with valve-
boxes and valves, and the oil or lubricant is forced up pipes and through open-
ings or other equivalents to the parts to be lubricated from whence it flows back
to the before mentioned oil wells or reservoirs to be used over again, thereby sup-
plying a continuous flow of oil or lubricant as long as the engines are in motion.
DESCRIPTION OF DRAWINGS.
Fig. 1 Sheet 1-is a part longitudinal sectional elevation of my improve-
ments in or relating to vertical tandem compound steam engines or other arrange-
ments to two, three, or more high-pressure cylinders on one shaft and apparatus
for regulating the speed of same and automaticaily lubricating the necessary
parts Fig. 2 a transverse sectional elevation through line AB in Fig. 1
Fig. 3 Sheet 2-an outside longitudinal elevation of Fig. 1-Fig. 4-Sheet 3
an end elevation through line CD in Fig. 1-Fig. 5 a sectional elevation
through line EG in Fig. 1-Fig. 6-Sheet 4-an enlarged sectional elevation
of throttle valve for regulating the speed of engines-Fig. 7 a sectional plan
through line H 1 in Fig. 6-Fig. 8-Sheet 5--a plan of Fig. 1, and Fig. 9 a
sectional plan through line M*N* in Fig. 1.
"
A represents the high-pressure steam cylinders; B low-pressure steam cylin-
ders; high-pressure steam cylinder piston rod;/D) low-pressure steam cylinder
piston rod; E high-pressure cylinder piston; G low-pressure cylinder piston;
cranks;
Hpiston rod crossheads; I connecting rods; J balanced "sweep
K crank pins; L crank shaft; M crank shaft pedestals; № eccentrics for
operating Corliss" or circular steam valves of high-pressure and low-pressure
cylinders; N eccentrics for operating "Corliss" or circular exhaust valves of
or circular steam valve
high-pressure and low-pressure cylinders; "Corliss
spindles of high-pressure cylinders; 01 "Corliss" or circular exhaust valve
spindles of high-pressure cylinders; 02 "Corliss or circular steam valve spindles
of low-pressure cylinders; 03 "Corliss" or circular exhaust valve spindles of
low-pressure cylinders; P steam valve-boxes of high-pressure cylinders: P¹ ex-
haust valve-boxes of high-pressure cylinders; P2 steam valve-boxes of low-pressure
cylinders; P3 exhaust valve-boxes of low-pressure cylinders; Q governor;
R throttle valves, and S foundation or framework of box-form.
23
In all the figures the same letters and numerals are employed to indicate
corresponding parts.

page_text: 6
"
"
On the foundation or framework S of box-form-in one or more lengths-are
mounted the enclosed frames or stands T provided with the doors or covers U to
allow of access when necessary to repair or attend to the parts contained therein;
the said doors or covers U being secured in any convenient manner. On the
upper end of each frame or stand T is mounted the low-pressure cylinder Bon
the top of which is located the high-pressure cylinder A, both being provided
with the pistons G and E respectively attached to the piston rods D and C; the
bottom end of the piston rod D being coupled to the crosshead H by the cottar a.
Inside each stand or frame T is provided with the slide-bars V on which are
mounted the slide-blocks W coupled to or formed with the crossheads H secured
to the lower or bottom end of the piston rods 1. The piston rods D and the
crossheads H are coupled to the balanced sweep "cranks J and the crank
pins K by the connecting rods I. The crank shaft L is mounted in the side
and middle bearings or pedestals M, being held therein by the caps M secured
by bolts in the usual manner. The high-pressure cylinder A of each engine is
provided with the well known "Corliss" or rotary steam valves mounted on the
valve spindles O, and the well known "Corliss or rotary exhaust valves are
mounted on the valve spindles 01. On the steam valve spindles are mounted
the levers X coupled by the pins Y, rods Y¹ and adjusting nuts or couplings X¹
to the wrist" plate or lever Z mounted on the centre Z on the side of the
high-pressure cylinder A as shown in Fig. 4 on Sheet 3 of the drawings. The
"
wrist plate or lever Z mounted on the centre on the side of the high-
pressure cylinder A is coupled to the "wrist" plate or lever W-mounted on
the centre Z on the side of the low-pressure cylinder B-by the adjustable
rod V, and the centres U¹ and Ti; and to the centre T is coupled the upper end
of the eccentric rod S-shown in dotted lines in Fig. 4 on Sheet 3 of the draw-
ings operated from the eccentric N on the crank shaft L shown in Fig. 1-
Sheet 1 of the drawings. The low-pressure cylinder B of each engine is pro-
vided with the well known Corliss or rotary steam valves mounted on the
valve spindles 02, and the well known Corliss or rotary exhaust valves are
mounted on the valve spindles 03. On the steam valve spindles 02 are mounted
the levers S3 coupled by the pins S and rods Y3 and the adjusting nuts X³ to the
wrist plate or lever W mounted on the centre on the side of the low-
pressure cylinder B as shown in Fig. 4 on Sheet 3 of the drawings. On the
Corliss or rotary exhaust valve spindles O₁ of the high-pressure cylinder A
are mounted the levers X and X3 coupled together by the adjustable rod U2 and
the pins
or centres Y2; the levers X being coupled to the lever Xqn the "Cor-
lissexhaust valve spindle 03 by the adjustable rod E2 by the pin or centre E¹³.
The lever V4 on the Corliss" exhaust valve spindle 03 is coupled by the adjust-
able rod and the pin or centre to the lever X on the Corliss" exhaust
valve spindle 03. The exhaust valve spindles 0 and 03 of both the high-
pressure cylinder A and the Now-pressure cylinder B are coupled together as
before described, and they are operated by the eccentric N¹ on the crank shaft L
and the eccentric rod Q2; the upper end of the latter being coupled to the lever V+
on the exhaust-valve spindle 03 by the pin or centre 0. By this arrangement
of valve-gear-wherein "trip" gear is entirely dispensed with-it will be seen
that a positive motion is produced to operate the "Corliss" steam valves of the
high-pressure cylinders A and low-pressure cylinders B by which a quick open-
ing is effected for the admission of steam to the said cylinders. The crank
shaft L is enclosed in the casings A secured in any convenient manner to the
foundation or framework S and the frames or stands T, thereby making the
same liquid and dust proof, ensuring cleanliness, and protecting the crank shaft L
and its adjuncts, consisting of the cranks J, eccentrics N and N¹ and oil pumps h
and the oil wells or reservoirs f from dirt, grit, and the like so detrimental to
the various working parts and surfaces. For the purpose of governing, con-
trolling, and regulating the speed of the said compound engines each high-
pressure cylinder A is provided with the throttle valve R, by which a much
23
"
"

page_text: better or closer governing is effected and a constant speed maintained than is
possible when only one main throttle valve is employed for three or more steam
cylinders which will ensure of the admission of steam to each high-pressure
cylinder A being immediately under the control of the governor Q. The throttle
valve R consists of the body or chamber R provided with the steam inlet
branch R2 and steam outlet branch R. The body or chamber R¹ of the throttle
valve R is fitted with the metallic seats R and K disposed above and below the
steam inlet branch R2. The metallic seats R and R are of equal diameter inter-
nally therefore on the balanced principle. In the seats R and R are disposed
the valves R and R7 respectively; the said valves being connected together by
the bars R and the centre hollow stem R. The centre stem R connecting the
upper valve R and the lower valve R is provided with the opening or passage A
leading to the opening A8 in the boss A7 under the lower valve R to admit of
steam on both sides or ends of the upper valve R and the lower valve R7, thus
making the same perfectly equilibrium and ensuring of its being speedily effected
by the least possible action or variation in the rise and fall of the "ball-
governor Q caused by the varying load being driven. To ensure of the sensi-
tiveness and effectiveness of the throttle valve the lower valve R is provided
with the serrated teeth 19 so as to produce the least possible amount of opening
for the passage of steam when a light load is being driven, thereby preventing
undue shock and ensuring uniform and regular driving, which is of the highest
importance when necessary for driving dynamos for electric lighting and other
purposes, such as, fine spinning, and other works where delicate and intricate
machinery is employed. To further ensure of the true working and increase
the efficiency of the equilibrium throttle valve the by-way pipe Z is disposed as
shown in Fig. 6-Sheet 4 of the drawings by which steam pressure may be
ensured to both sides of the valves R and R7 immediately the least opening of
the same takes place. The combined valves R and R' are attached to the valve
spindle M screwed into the boss A7; the valve spindle M passing through the
stuffing-box M to the outside, the lower end of the valve spindle Me being pro-
vided with the socket Ms which is coupled to the adjustable rod M; the lower
end of the latter being coupled to the lever No mounted on the governor shaft No
supported in the fixings N secured to the brackets N7 attached to the frames or
stands T. The governor shaft No is connected to the governor Q by means of the
lever No and rod N. The governor Q is of the ball principle mounted on the
stand Q the latter being provided internally with the usual bevel wheels
actuated by the shaft Q3 provided with the chain wheel Q driven from the crank
shaft L by the chain Qas shown in Fig. 4 on Sheet 3 of the drawings. For
automatically lubricating the movable parts, wearing surfaces, and the like of
vertical engines the foundation or framework S is provided with the oil wells or
reservoirs in which are located the copper coils or pipes g through which water
is passed from any convenient source for the purpose of keeping the oil or lubri-
cant cool. to ensure of lubricating being thoroughly effected. To the foundation
or framework S are attached the pumps h; the rams j of the same being actuated
by the eccentrics and rods from the crank shaft L. The pumps are fitted
with the valve-boxes n provided internally with valves on the ball or other prin-
ciple. The oil or lubricant is drawn from the oil wells or reservoirs f through
the suction pipes into the valve-boxes by the outward strokes of the rams j,
and forced from the same by the downward strokes of the said rams which action
forces the oil or lubricant up the pipes r and through the valves into the pipes v
connected with the caps or covers M of the crank shaft pedestals M. To the
pipes are connected the pipes rl with the taps 2 for lubricating the eccentrics N
and N on the crank shaft L. The pipes are held and supported in the fixings
16 secured to the sides of the crank shaft pedestals M, and are provided with
the valves secured to the underside of the slide-bars and in line with the
passage leading to the slide-blocks W on the slide-bars V, and as the slide
blocks W slide up and down the oil or lubricant is forced through the hole or

page_text: are
opening into the crosshead pin to lubricate the centre 62, from whence the
oil or lubricant is forced by the action of the rams j of the pumps out and
through the pipes z connecting the same with the crank pins K. By closing the
valves on the underside of the slide-bars V and opening the valve X³ on the
pipe X the oil or lubricant may be regulated to lubricate the slide-bars V, slide-
blocks W, crosshead pin 2 and the crank pins K. By these arrangements the
surplus oil or lubricant flows back to the oil wells or reservoirs f to be used
over again, the operation being continuously repeated as long as the engines are
in motion. For the purpose of ascertaining if the oil or lubricant pumps
performing their duty the delivery valve boxes are provided with the pipes n²
and the test taps 3 as shown in Fig. 2 on Sheet 1 of the drawings. The pipes
for conveying oil or lubricant are fitted with union joints and couplings where
necessary for the purpose of fixing and removing the same when desired or
necessary. Each end of the foundation or framework S is provided with the
stationary boxes or covers S** secured by bolts or their equivalents to the sides
on the frames or stands T and the foundation or framework S. Each end of
the crank shaft L is provided with the disc L to which a corresponding disc
may be bolted in case it is intended to couple other shafts, or when it is desired
or necessary to increase the number of engines coupled to one crank shaft. The
cranks J are set at equal divisions of the circle described by the centre of the
crank pins K, for instance, if three engines are employed the cranks will be
set at 120° to each other, if, four engines are employed as desired or required,
and so on according to the number of engines to be coupled on one crank shaft
which will produce an uniform motion necessary for driving electric light and
other purposes before mentioned.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
"
6.
1. The general arrangement construction and combination of parts composing
my improvements in or relating to vertical tandem compound steam engines or
other arrangements to two, three, or more high-pressure cylinders coupled in
successive order on one crank shaft and apparatus for regulating the speed of
same and automatically lubricating the necessary parts, consisting of the founda-
tion or framework S of box-form on which are mounted the enclosed stands or
frames T on the upper end of each are located the high-pressure cylinder A and
the low-pressure cylinder B, both the said cylinders being provided with the
Corliss valve-boxes P, P1, P2 and P3 respectively containing valves on the
Corliss" or rotary principle, the steam valve spindles of the high-pressure
cylinder A being fitted with the levers X coupled to the "wrist" plate W of
the lever Z by the adjustable rods Y', nuts XI and the pins or centres Y; the
lever Z being mounted on the centre Z¹ located on the side of the high-pressure
cylinder A; the lever Z carrying the wrist" plate W mounted on the centre 73
located on the side of the low-pressure cylinder B being coupled by the adjust-
able rods Y, nuts X, and the pins or centres S to the levers S³ mounted on the
steam valve spindles O2 of the low-pressure cylinder B, the lever Z on the high-
pressure cylinder A being coupled to the wrist" plate W on the low-pressure
cylinder B by the adjustable rod V₁ by means of the pins or centres U₁ and T¹,
the latter coupling the same to the eccentric rod S¹ connected with the eccen-
tric on the crank shaft L; the exhaust valve spindles O₁ of the high-pressure
cylinder A being fitted with the levers X2 and X3 coupled together by the adjust-
able rod U2 and the pins or centres Y2, the latter being coupled to the lever X³
on the exhaust valve spindle 03 by the adjustable rod 0, the lower end of the
latter being coupled to the lever V by the pin or centre 05; the latter coupling
the same to the eccentric rod Q connected with the eccentric N¹ on the crank
shaft L; the high-pressure cylinders A being fitted with the pistons E secured
to the piston rods C and the low-pressure cylinders B are fitted with the
"

page_text: pistons G secured to the piston rods D attached to the crossheads H coupled to
the connecting rods I by the pins or centres 2; the opposite ends of the con-
necting rods I being coupled to the crank pins K secured to the balanced
sweep cranks J and crank shaft L mounted in the pedestals M in the founda-
tion or framework S, the ends L of the crank shaft L being enclosed in the
stationary boxes S** attached to the foundation or framework S and
the stands or frames T; the foundation or framework S having the oil
wells or reservoirs f with the cooling pipes g-to receive oil or lubricant that
may flow thereto from the various lubricated parts of each engine-in each of
which are located the pumps h with the rams actuated by the eccentrics & and
rods from the crank shaft L, by which the oil or lubricant is drawn through the
suction pipes p into the valve-boxes n by the outward strokes of the rams and
forced from the same by the downward strokes of the said rams, by which the
oil or lubricant is forced up or through the pipes into the pipes connected
to the caps or covers M¹ of the crank shaft pedestals M, and to the taps 2 for
lubricating the eccentrics N and N¹ on the crank shaft L, also through the
valves secured to the underside of the slide bars V as well as through the
pipes and taps into the passage leading to the slide blocks W, from
whence the oil or lubricant is forced through the hole or opening into the
crosshead pin b to lubricate the same, after which by the actions of the pumps
and rams the oil or lubricant is forced out, down, and through the pipes to
the crank pins K, from whence it flows back to the oil wells or reservoirs f to be
used over again continuously as long as the engine is in motion: each engine
being governed controlled or regulated in speed by means of the throttle valve R
on the balanced principle actuated by the governor Q connected therewith by
the rods N and 9 and the levers №9 mounted on the shaft N" located in the
bearings N8 secured to the fixings N on the frames or stands T; the whole being
constructed, connected, applied, and operating substantially as described and as
illustrated in the drawings.
2. The general arrangement construction and combination of parts forming
the balanced throttle valve R consisting of the body or chamber R¹ provided
with the steam inlet branch R2 and the steam outlet branch R³ the body or
chamber R¹ being fitted internally with the metallic seats R4 and R of equal
diameter internally, in which are located the valves R and R connected together
by means of the bars R8 and the centre hollow stem R", the latter having the
opening or passage A leading to the opening A8 in the boss A7 to admit of steam
on both sides or ends of the said valves R and R the valve R7 being provided
with the serrated teeth B; the boss A being connected to the valve spindle M6
passing through the stuffing-box M to the outside and provided at its lower end
with the socket Ms coupled to the adjustable rod M attached to the lever No
mounted on the shaft No actuated by the governor Q; substantially as described
and as illustrated in Figs. 6 and 7 on Sheet 4 of the drawings, Fig. 4 on
Sheet 3 of the drawings, and Fig. 3 on Sheet 2 of the drawings for the purposes
set forth.
Doted the 2nd day of March 1900