Improvements in or relating to Engine Room Order Telegraphs } and Tell Tales.
Year: 1899

page_text: Date of Application, 31st Aug., 1899-Accepted, 7th Apr., 1900
COMPLETE SPECIFICATION.
Improvements in or relating to Engine Room Order Telegraphs }
and Tell Tales.
We, ALESSANDRO MOSCA and ANTONIO SIVITZ, both of 10, Via Cairadori, Fieste,
Italy, 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 -
The object of our present invention is to provide an electro-automatic apparatus
allowing of controlling, at a distance, the direction of movement of an engine,
for instance on steamers, whereby the captain may know at every moment whether
his orders for reversing the motion of the engine have been observed and
correctly caned out A further object of the invention is to provide an alaım
operating when the order is given and until the same is correctly carried out.
In order that this our invention may be the more readily understood and
carried into practical effect, reference is hereby made to the accompanying
diawings, in which:
Fig 1, is a general view of the apparatus from the front,
Fig 2-18 a similar view of same from the side,
Fig. 3, 18 a fi ont elevation of the transmitter;
Fig 4, shows a vertical section of same,
Fig 5, shows an elevation and a section of an adjustable contact-button,
Fig 6, 18 a sectional detail view of a stationary contact-button;
Fig 7, 18 a font elevation of the indicator;
Fig 8, shows a vertical section of same, and
Fig 9, shows the arrangement of the conducting wines in the indicator
The apparatus is principally composed of a transmitter or commutator which is
actuated automatically by the motor-shaft of the engine, and an indicator or
receiver connected to the transmitter and indicating automatically the duection
of the movement of the engine by means of small plates bearing suitable inscrip-
tions or in any other way It is evident that the transmitter is arranged near
to the engine, whilst the receiver 18 placed near the attendant which must
control the movement of the engine, (in the case of a steamer, the receiver 18
placed on the deck thereof) The transmitter and receiver are in combination
with the telegraph serving for the transmission of orders, two electric alarms,
one of which is aiianged near the engine the other being placed in the indicator,
and a suitable battery supplying current to the apparatus
Around the motor-shaft 2, of the engine extends a belt, cable or equivalent
to transmit the movement thereof to a grooved pulley 3, made integral with
a bevel gear-wheel 4, (Fig. 3,) meshing with a toothed pinion 5, made integial with
an endless screw 6, engaging a woim-wheel 7, mounted on a shaft 8 The latter
canes a double grooved friction pulley 9 actuating a grooved correspondingly
shaped sector 14, pivoted on a shaft 13, journaled in movable bearings 12, which
may be adjusted in slots provided in uprights 10, 11 A lever 16, having a
balance-weight 17, and pivoted at 15, to the uprights 10, 11 rests on the shaft 13,
for normally holding the sector 14, in engagement with the friction pulley 9.
The said sector terminates in an arm 28, forming the level of the transmitter
гр.
07

page_text: The transmitter is composed of a segment 29, secured upon the upright 11,
and having four contact-buttons 36, 37, 38, and 39, (vide Figs 3, 4, 5, & 6,) pro-
vided with the usual wire fastenings and two of which (36, 37) are adapted to
be adjusted in a slot provided in said segment The latter carries furthermore
three switch buttons 33, 34, 35, also provided with wire fastenings, and a terminal
for electrically connecting the segment to the battery 80, (Fig. 1) by means of
Wiles 81, 82 The contacts are connected to the indicator or receiver, whilst
the switch buttons are connected to the telegraph, that is, to the receiving dial
thereof
The lever 28, actuated by the fiction-wheel, 9, carries, at its upper end, two 1
pins 30, & 31, the pin 30, of which is adapted to contact with the different but-
tons 36, 37, 38, and 39, whilst the pin 31, is intended to strike the stop-pieces 32,
limiting the movement of said lever The said buttons are made of bone or
like material and held in place by means of suitable springs x, y, z, respectively,
said springs completing or breaking the circuit in accordance with the engage-
ment of the contact buttons or of the switch buttons The wue-fastenings S,
ale mounted on pieces made of ebony wood or other insulating material S¹
It will be readily understood that when the pin 30, on level 28, engages with
the contact-buttons, 36, 37, 38 and 39, the springs, y, and z, of the latter are
brought in contact with the metal pieces S, secured to the wire-fastenings S,
Figs. 5, and 6, whereby the corresponding circuit will be closed
66
"
The indicator 1, is composed of a preferably cylindrical box completely closed
and provided on one of its flat faces with three openings B'. before which appear
the indications forwards," 'stop," backwards" respectively marked on the
plates B, Figs 7, and 8. These plates are carried by a slotted 10d guided by
means of screws 8, S To the back of the plates B, is pivoted an arm G, pivotally
connected with a lever L, pivoting at L', and terminating at its other end in an
armature A The said box contains three electro-magnets I, II, III, each pio-
vided with an armature A, and three secondary coils or windings I, II, III, each
provided with an armature A¹, and electrically connected to the contacts 36, 37
38. and 39, of the transmitter, as shown in the diagram Fig. 9. The terminal
of the contact button 38, is connected by means of the wire 49, to the electio-
magnet I, and the coil or winding II', and by means of the return wire 53, to
the battery 80 The terminals of 36, 37, are connected by means of the wie 50),
to the electro-magnet II, and the coils of windings I & III', and by means of
the wire 53, to the battery 80; the terminal of 39, 18 connected by means of the
wire 51, to the electro-magnet III, and the coil or winding II, and by means
of the wue 53, to the battery 80 The wires 52, & 54, form a part together with
the wires 70, and 74, (Fig 1) of the circuit of the electric alaims between the
dial of the telegraphic apparatus, the alarm 71, the alarm C, of the indicator and
the battery 80. Said circuit is completed by the wires 67, 68, 69, connecting the
telegraphic dial to the transmitter 29. that 18, to the terminals or contacts 33, 34, 35,
and the wires 81, 82, connecting the terminal 83, of the transmitter to the
battery 80 The wires 47, 48, serve to connect the electric incandescent lamp
arranged within the indicator, to the electric generator
The wires 47, 48, 49, 50, 51, 52, 53, 54, enter the indicator through an opening
provided with a tube-section having a nut 55, serving to fix the indicator upon
a tubular support through which pass the several wires of the indicator
The levers L, canying the plates B, and the armatures A, are fitted with a
spring F, normally holding the ends of said levers carrying the plates in thei
lower positions in which the inscriptions on the plates B, cannot be seen through
the opening B¹ When the curent passes through an electro-magnet, the corre
sponding armature is influenced and therefore the corresponding plate B 18
raised to show its inscription through the opening B¹. The armature A, is held
in its contacting position by means of a lever D, pushed by a spring E and the
end of which presses against the armature A The other end of the lever D,
forms the armature A¹, of the coil I, II or III¹, and serves to disengage the

page_text: armature A, from the electro-magnet I, II, o III, when the curient passes
through the coil in accordance with the arrangement shown in Fig. 9
The forward or backward motion of the engine is indicated by the displacement
to the left or to the right of the aim 28, on the grooved sector 14, produced
through the agency of the transmission devices already described. However,
the stopping of the engine cannot be transmitted in this way to the lever 28,
and we have provided another transmission device for this purpose The motion
18 reversed by means of the hand-wheel 22, mounted on a shaft 18, having a
worm 19, engaging a wheel 21, the rank-arm of which 19 connected by means
of a rod 20, with one of the eccentric bars of the engine In the position shown
in the drawings (Fig 1), said crank-aim is in a position corresponding to the
stopping of the engine In this position, a cam 22, arranged on the hub of the
wheel 21, engages a level 24, pivoted at 23, and the other end of which is pivotally
connected with a system of suitably jointed levers 25, 26, 27, to which is 8u8-
pended the lever 28, of the transmitter. In the drawings (Fig 1) said lever 28.
is lifted and adapted to transmit the word "stop" to the indicator. The method
of effecting this transmission is described hereinafter
The apparatus above described forms the controlling device proper allowing of
verifying whether the orders have been correctly carried out
In order to facilitate this operation and to enable the person giving orders and
the one carrying the same out to verify the transmission and the carrying out of
the orders by means of a distinct signal, the above described devices are combined
with the receiving dial of the telegraphic apparatus serving to transmit orders. The
dial 66, 18 provided with contacts corresponding to the positions of the hand 79,
for the various orders The contacts 72, 73, 74 for the "forward" orders are
connected by means of the wire 67, to contact 33, of the transmitter 29, the
contacts 75, 76, 77, are connected to the contact 35, by means of the wire 69,
and the contact 78, 18 connected to the contact 34, by means of the wire 68
Furthermore, the dial 66, 18 connected to the cucuit of the alarms already de-
scribed, by the wire 70
11
For the different orders which may be transmitted to the dial 66, the devico
operates as follows. The orders "forwards," "full speed," "normal speed," or
low speed," putting the hand 79, upon one of the contacts 72, 73, 74, close the
circuit of the alarms through the wires, 70, (52) 74, 50, battery 80, wire 81,
terminals or contacts 83, 33, wire 67, and contact 72, 73 of 74 Both alarms 71,
and C, operate until the transmitted order is correctly carried out In the
present case, the engine must work forwards and the grooved friction pulley
moves the contact level 28, to the left. The lever first engages the button 38,
by means of its contact 30, and closes the circuit 49, I, II, 53, 80, 82, 83, 38
The electro-magnet I influences its amature A, and the coresponding lever I,
raises the plate "forwards," whilst the coil II disengages the armature from the
electro-magnet II.
The lever 28, continues its movement to the left, and engages the contact 33,
whereby the circuit of the alarms is open, said alarms being therefore inoperative.
Said lever 28, is stopped in its extreme position by means of a pin 31, engaging
a suitable stop 32 Moreover, in this extreme position, the giooved sector is
out of engagement with the friction pulley and no longer actuated by the latter
The person who has given the order is enabled to verify that the same 18 correctly
carried out by the word "forwards" appearing in one of the openings B₁ of the
indicator, and by the stopping of the alarm
"
For an order such as backwards," the operation is the same with the contact-
buttons 75, 76 77, wire 69, switch 35, contact button 39, wue 51, electro-mag-
net III and coil II' It will be noted that, in order to obtain a backward motion
after a forward motion or rice versa, it 18 necessary to pass through the inter-
mediate position corresponding to "stop." For instance, in order to obtain a
backward motion after the forward motion, the lever 28, 18 first lifted by means
of the system of levers 25, 26, 27, when the crank-arm of the wheel 21, 18 in a

page_text: position collesponding to the stopping, and when the cam 22*, lifts the lever 25,
Then the engine beginning its backward movement, the lever 28, 18 depressed
and moved towards the right by the action of the grooved sector 14, and the
fiction pulley 9 During this movement from the left to the night, the level 28,
engages the contacts 36, 34, & 37. The switch 34, will have no effect because
the cucuit of the alarms 18 closed towards the wie 69, and the contact 35 The
alaim will therefore operate, but, in the passage over the contacts 36, 37, the
level 28, closes the circuit of the indication "stop," by means of the wire 50,
the electio-magnet II forcing the said indication" "stop" to appear in one of
the openings B, by influencing its armature A, and the coils 1', fir, influencing
the aimatuies and disengaging the corresponding armature A (in this case,
the amature of the electio-magnet I). Then the lever 28, moves upon the
contact 39, closing the encuit 51, III, II¹ and causes the indication "backwards"
to appeal in one of the openings B', the indication "stop" being removed at the
same time, by inflencing the armature A, of the electro-magnet III, and the
armature A of the coil II¹ which disengages the armature A, of the electio-
magnet II
When the hand of the telegraphic dial indicates "stop," the contact 78, closes
the encuit of the alaims towards the switch 34, whereby said alumis are actuated
so long as the crank of the wheel 21, is not brought to the position shown in
the accompanying diawings, which position corresponds to the stopping of said
crank. Then, through the agency of the cam 22, and the leveis 24, 25, 26, 27,
the lever 28, 15 raised and brought in contact with the switch 34, to open the
cucuit of the alarms after passing over the contact 36. on 37, and to cause the
indication "stop" to appear, the indications "backwards" or "forwards" being
removed at the same time.
"
It will be seen that when an order is not correctly caned out, the alaims
continue to operate to notify the engineman as well as the person who has
given the order that there is a mistake in the carrying out, so that the same
can be immediately connected. Indeed, when "for wards has been ordered and
when the engine-man causes the engine to work backwards, the circuit of the
alarms being closed on the contact 33, and the lever 28, moving to the con-
tact 35, the alarms continue to operate because the switch or disconnector 35,
has no effect in this case, the cucuit thereof being not closed
The battery 80, may be of any desed kind, the battery shown in the accom-
panying drawings 18 composed of nine diy elements, two of which serve to operate
the alarms
The transmission 3-9 is so constructed that the engine has made two revolu-
tions at least in either direction, when the lever 28, has reached the end of its
stroke to the right or the left and engaged the stops 32.
It is evident that many changes or modifications may be made in the con-
struction and relative arrangement of the various parts of our invention, and we
wish it to be understood that we do not restrict ourselves to the precise con-
struction and arrangement herein shown and described and that such changes
or modifications may be resorted to without departing from the scope or sacrifying
any of the advantages of the invention
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is:-
1. An apparatus for controlling the duection of the movement of engines,
comprising an electric commutator having contact-buttons for the different
steps of the movement, a contact-level adapted to engage said contact-buttons,
a suitablo transmission for actuating said lever from the motor-shaft of the
engine, an indicator provided with an electro-magnet electrically connected to
said commutator, means for actuating the contact lever at the stopping of the
engine, means for operating an alarm-signal from the transmission of a given

page_text: order to the correct carrying out thereof, and means for supplying and trans-
mitting electric currents in the apparatus, substantially as and for the purpose
set forth.
2 An apparatus for controlling the duection of the movement of engines,
comprising an electric switch or commutator, contacts for the different steps of
the movement on the switch-board, a contact-lever adapted to be moved in
engagement with said contacts, a friction-pulley for actuating said contact-lever,
a suitable gearing for transmitting the movement of the motor-shaft of the
engine to said friction pulley, movable bearings supporting said contact lever,
a weighted level pressing upon the shaft of the contact-lever to hold the same
normally engaged with said friction-pulley, a system of suitable levers pivotally
connected with the contact level to lift and bring the same in contact with the
contact-button coresponding to the stopping of the engine, a cam on the hub
of the operating cianh-wheel of the motion, leveising device for actuating said
system of levers when the crank is in a position corresponding to the stopping
of the engine, an indicator having an electio-magnet electrically connected to
said switch on commutator, means for operating an alaım-signal during the
tiansnussion of a given order and until the same 18 coniectly carried out, and
means for supplying and transmitting electric cutients to the apparatus, sub-
stantially as and for the purpose set forth.
3 An apparatus for controlling the direction of the movement of engines,
comprising a switch or commutator actuated by the motor-shaft of the engine,
an indicator electrically connected to said switch or commutator actuated by the
motor-shaft of the engine, an indicator electrically connected to said switch on
commutator, an electio-magnet for each indication of movement in said indicator
a plate provided with an indication connected with each armature and movable
therewith, a secondary coil for each electio-magnet, an aimature for each secondary
coil to hold the armature of the electio-magnet in contact when current passes
through the same, a derivation wire of the electro-magnet leading to the adjacent
secondary coil for disengaging the armature of the adjacent electio-magnet when
the current has passed through the one connected to said coil, means for operating
an alarm-signal during the tiansmission of a given order and until the same is
correctly carried out, and means for supplying and transmitting electric currents
to the apparatus, substantially as and for the purpose set forth.
4. In an apparatus for controlling the direction of the movement of engines,
the combination with an electric switch or commutator actuated by the motor
shaft of the engine, an indicator electrically connected to said switch or commu-
tator, and means for supplying and transmitting electric currents to the apparatus,
of a telegraphic-dial provided with contacts at points where the hand thereof is
moved during the transmission of the different orders, suitable electric con-
nexions between said dial and two electic alarms, and electric connexions between
the dial and the said switch or commutator, substantially as and for the pupose
set forth
5 An apparatus for controlling the dnection of the movement of engines,
constructed, arranged and operating substantially as descubed and illustrated in
the accompanying drawings
1000
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C,
Agents for the Applicants