Improvements in Compound and Multiple Cylinder Engines working with Lor T Connecting Rods.
Year: 1892

page_text: Date of Application, 26th Nov., 1892
Complete Specification Left, 24th Aug., 1893-Accepted, 7th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Compound and Multiple Cylinder Engines working
with Lor T Connecting Rods.
I, HENRY JAMES HOGG KING of Newmarket, near Stroud Gloucestershire
Engineer do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in compound & multiple cylinder
engines working with Lor T shaped, or triangular connecting rods, & for which
Letters Patent were granted to the present applicant A.D. 1885 November 5th
No. 13,391.
The first part of this invention relates to engines of this class, in which I prefer
to place the cylinders vertically but not necessarily so, and to produce cost of
manufacture economise room and also render the engine more accessable and
stronger in every way. I invert the connecting rod placing the top of the 1 as
written or the part of it which is attached to the crank pin nearest the cylinders so
that in an inverted cylinder engine the crank in turning may only just clear the
cylinders, this arrangement also allows of longer links to be used to couple the
piston rods to the connecting rod, thus reducing friction to a minimum.
In another modification of this arrangement where 3 cylinders are used instead
of 2. I connect one of the piston rods (to the rocking lever which controls the
motion of the connecting rod, and works the air pump) on the air pump side of
the fulcrum so that the piston of this cylinder in connection with the air pump or
other pumps balances the other two.
Another part of this invention consists in an improved way of working the valves,
this is done by a facsimile connecting rod on the eccentric to that on the crank,
which gives, the same relative motion to the valves that the pistons have to
each other.
Another improvement consists in substituting 2 radius rods and a link for slide
bars to guide the centre of the connecting rod in a straight line when it is most
convenient to couple a piston rod directly to it.
Another improvement consists in the starting gear which allows the steam to be
turned into either cylinder to start the engine for having no dead centre, if this is
done there is no necessity to bar the engine round to start it. Instead of the
ordinary gab motion I use a wedge shape block working on trunions, and a hand
wheel connected with a cam & pinion the former of which first lifts the eccentric
rod, & the latter moves the slide valve to any position it may be desired to put it
in, thus making a much more durable & practical arrrangement than that
ordinarily in use.
Another improvement where room is of great importance in the horizontal
engine, consists in working the air pump with an L or T rocking arm, the air
pump being in this case vertical & below the cylinders.
Dated this 24th day of November 1800
COMPLETE
SPECIFICATION.
Improvements in Compound and Multiple Cylinder Engines working
with Lor T Connecting Rods.
1, HENRY JAMES HOGG KING of Newmarket near Stroud Gloucestershire
Engineer do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to improvements in compound and multiple cylinder

page_text: engines, working with L or T shaped or triangular connecting rods and for which
Letters Patent were granted to the present applicant, A.D. 1885, November 5th
No. 13,391.
The first part of this invention relates to engines of this class working with
Lor connecting rods where I place the cylinders of a compound or multiple
cylinder engine in a vertical position, with the crank shaft directly below the
cylinders, and between the connecting rod & the cylinders as shown in Sheets 1. 2. 3
& 4 which show condensing engines, but which may be also worked as non-condensing
engines in which case the air pump and condenser would be dispensed with. By
this arrangement I obtain the advantage of an engine with vertical cylinders and
bearings in a very compact & accessible form, which also gives great stability and
reduces the cost of manufacture.
Fig. 1. Sheet 1. illustrates a compound condensing engine as above described, in
which the high & low pressure piston rods 1 & 2 are couplid to the 1 connecting
rod 3 through the medium of the links 4 & 5, the connecting rod being centred
at 6 on the rocking lever 7 which is centred at 8 & works the vertical air
pump 9.
By placing two sets of these engines on one crank shaft they may be worked as
quadruple engines by passing the steam in succession through each of the 4
cylinders.
Fig. 2. Sheet 2. shows a modification of this arrangement where 3 cylinders are
used instead of 2. In this case one of the cylinders as shown is placed directly
over the air pump 9 and coupled on to the rocking lever 7 by the link 10 or its
equivilent by which arrangement the weight of this piston and air pump balances
the weight of the other pistons and working parts.
Fig. 3. Sheet 3. shows an improved way of working the valves of engines
working with or T connecting rods (that shown in Fig. 3 being correct for a 1
as written) by one eccentric which gives a motion to the valves corresponding to
that of the pistons. The eccentric strap 1 being in reality a duplicate of the
connecting rod and this in combination with the radius rods 2 & 3 centred at 4 & 5
which guide the valve spindles 6 & 7 in practically a straight line, makes a simple
arrangement of working the valves. The eccentric strap being centred at 9 on
the radius rod 8.
Fig. 4 Sheet 4 shows an arrangement suitable in the case of a triple expansion
engine in which it is advantageous that the centre of the 1 connecting rod should
move in a straight line to guide one of the piston rods, this is effected by means of
the links 1 and the radius rod 2 which corresponds in length to the radius rod 3,
the same arrangement may also be applied to the compound engine to guide the
centre of the connecting rod in a straight line.
Fig. 5 & 6 Sheet 5. show an improved form of starting gear suitable for this
class of engines, but which can be equally well applied to any engine in which it
is advantageous to move the valve without turning the engine round. 1 is the
valve spindle which is attached by nuts to the casting 2 in which is fitted the
trunion block 3 which is made wedge shape as shown to ensure the gab end 4 being
always a fit. As shown in the drawing the eccentric is working the valve, and to
throw it out of gear the hand wheel 5 is turned round from the position it naturally
assumes (by virtue of the weight of the cam 6) which is eccentric and which in
turning lifts the gab 4 up and out of gear. The hand wheel is then drawn forward
in the direction of the and the rack 8, which is part of the casting 2 engaged
with the pinion 9. The valve can then be moved in any direction by the hand
wheel 5 and the gab is kept out of gear by the concentric part of the cam 61, which
through the movement of the hand wheel in the direction of the →→is brought
under the gab end of the eccentric rod 4.
Another improvement where an horizontal engine is preferred through want of
room vertically or for any other reason is shown in Fig. 7 Sheet 6. this consists in
working a vertical air pump as shown with a bell crank lever 1 on the vertical
part of which is centred the T or L connecting rod.
****

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare, that what I
claim is
1. Making a vertical compound cylinder engine (which works with steam or
other gas) & in which an T or L connecting rod is used; and in which engine,
the crank shaft is placed directly under the cylinders and between the cylinders
and connecting rod, substantially as shown in Fig. 1, Sheet 1 of the accompanying
drawings.
2. Placing 2 engines as described in Claim 1 on one crank shaft and working them
as quadruple or compound engines.
3. Making a tripple expansion engine substantially as shown in Fig. 2 Sheet 2
of the accompanying drawings.
4. Making a compound engine which works with an L or T connecting rod, in
which the valve spindles are guided in practically straight lines by long radius rods
and which are worked by one eccentric, which gives the same relative motion to
the valves that the connecting rod gives to the pistons.
5. Making a tripple or compound engine substantially as shown in Fig. 4 Sheet 4
in which the centre on which the connecting rod moves is guided in a straight line
by the parallel motion as shown and discribed.
6. A disengaging gear for working the valve by hand substantially as shown and
described, in Sheet 5 Figs. 5 & 6.
7. Making an horizontal compound engine in which the crank shaft is between
the Lor T connecting rod and the cylinders as shown in Fig. 7 Sheet 6.
air
8. Making an horizontal compound engine as described in Claim 6 in which the
pump is worked substantially as shewn in Fig. 7, Sheet 6 when it is used as a
condensing engine.
Dated this 22nd day of Angust 1802
H. J. H. KING.