Hoisting and Travelling Gear for use in Charging Blast and Cupola Furnaces, and for Loading and Unloading Boats and the like.
Year: 1899

page_text: Date of Application, 7th Oct., 1899
Complete Specification Left, 7th July, 1900-Accepted, 7th Nov., 1900
Hoisting and Travelling Gear for use in Charging Blast and Cupola
Furnaces, and for Loading and Unloading Boats and the like.
FRANK DAWSON, 4, Victoria Terrace, Coatham, Redcar, in the County of York,
and JOHN KUHR, 6, Glenholme Terrace, Borough Road, East, Middlesborough,
Yorkshire, both Engineers, do hereby declare the nature of this invention to be
as follows:
1
The invention consists of an automatic gear for, hoisting and travelling a load
by means of one chain, which is done in the following manner.
In the case of charging blast furnaces, we have a combined bucket and bugie
having discharging doors at the bottom of the buckets, which are required to be
opened, when the buckets are at the top of the furnace that is required to be
charged, and the doors are opened by the man at the electro motor by means of
a chain, and are closed and locked by means of balance weights and levers which
are on the buckets. It is so arranged that there are four separate lines of rails
over the whole length of a series of furnaces; on these four rails it is arranged
so that four buckets can be hoisted and travelled and also charged into the furnace
at one and the same time, and the capacity of each bucket is such that only one
is required for each kind of material. The mean time from the starting of the
buckets from the calcining kilns to one furnace of a series of eight furnaces and
returning to the kilns is six minutes.
The bogies are arranged to run on branch railways, round the kilns, and from
under the bunkers (from whence they are filled) to one main small gauge rail-
way running the whole length of a line of kilns and bunkers; between the rails
of this railway travels an endless chain which pushes the bogies forward, and at
each end of this railway are two short lines, one for receiving full buckets and
allowing the bogies to travel from the endless chain railway to one end of a line
of furnaces at the point where the hoisting chain is, and one for receiving empty
bogies from the hoisting and lowering chain on to a raised railway and allowing
the bogies to run down an incline along the short line to the endless chain rail-
way; the bogies then travelling back to the kilns and bunkers to be refilled.
At the end of the line of furnaces where the bogies are delivered, are the hoist-
ing and travelling chains; at the end of these chains are hooks to which the
bogies are attached. The bogies are then raised to the height of the furnaces;
at this moment, special links, which are near the end of the chains, lift levers
and disengage the pulleys, round which the chains run, and allow these pulleys
to travel in a horizontal line on rails to whichever furnace requires charging."
There are also chains provided for bringing back the bogies from the top of the
furnaces down to the raised railway, these chains also keep the bogies in position
over whichever furnace it is required.
The position of bogies when over any one furnace can be seen by the man

page_text: handling the motor, by means of a special gear and dial, and can, therefore, be
regulated from the electric motor.
The whole of this system is worked by one electric motor.
FRANK DAWSON.
JOHN KUHR.
Hoisting and Travelling Gear for use in Charging Blast and Cupola
Furnaces, and for Loading and Unloading Boats and the like.
FRANK DAWSON, 4, Victoria Terrace, Coatham, Redcar, in the County of York,
and JOHN KUHR, 6, Glenholme Terrace, Borough Road, East, Middlesborough,
Yorkshire, both Engineers, 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:-
In the accompanying drawings Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 show details of
the hoisting and travelling gear for use in charging blast and cupola furnaces,
and for loading and unloading boats and the like.
Letter a is a monkey which travels in a horizontal direction over the top of
blast furnaces and the like. is a chain for hoisting the load and at the same
time causes the monkey to travel in a horizontal direction. c is a special link in
the chain 6 which lifts the lever d when the load is hoisted to the required height.
e are forks which surround the monkey wheels h, and are kept locked by the
lever at the end of a line of furnaces and the like; these forks e are unlocked
by the special link c lifting levers when it is required for the monkey to travel
in a horizontal direction. The projections f on monkey a are provided so as to
cause special links c to push monkey a in a horizontal direction. g is a brake
which is loose on the monkey axle and has a sliding face which slides on a
square bar and a circular boss f which fits into a recess in ratchet wheel d¹.
As soon as the forks e are relieved the lever leaves projection and con-
sequently drops by its own weight and causes the paul at the same time to
drop into gear with ratchet wheel d, thus preventing the chain-wheel & revolving.
The sliding faces on brake g carry the whole of the vertical load forward and
backward in accordance with the travelling of the monkey a. The action of these
sliding faces brakes the load which otherwise would travel the monkey too
freely in the direction shown by arrow in Fig. 1. h are two runners on monkey a
which are embraced by the forks e. are pins on which are fixed pauls 2 and
levers d. kis the chain wheel in which works the chain b. 7 is a paul which
drops into gear with ratchet wheel m; this ratchet wheel m and fork e are fixed
on to the shaft z, and consequently both turn together when they are relieved by
paul 7.
n is a stud which is fixed in frame 2 upon which guide wheel o revolves.
o is the chain guide wheel upon which chain p turns. is a chain which is
provided to bring the monkey back after the material has been discharged into
the furnace. 7 are bolts for fixing frames 2 to the structure at the end of a
number of furnaces and the like. are runners which are on the monkey a.
sare rails upon which the monkey travels. t are the square bars upon which the
brake 9 slides, running the whole length for the monkey to travel. u are joists
which form part of the structure and upon which the rails s are mounted.
channel irons forming part of the structure and are provided to mount the
frames 2 upon for carrying the end gear. ware distance pieces to strengthen
the channel irons. y are springs on the lever d which is jointed at fs, and has a
v are

page_text: lug on (). This joint only works in one direction to allow the special link o
to pass the lever d'on its return journey. The springs y are provided to force
the bent part of lever d to its original position. z are axles for forks e and
ratchet wheels m. a is a link chain fixed on monkey axle , and to which the
chain p is attached for pulling back the monkey after the load has been dis-
charged. a are plates for forming the end structure upon which are mounted
gear frames 2. b is a chain guide roller. is the monkey axle upon which the
chain guide roller revolves. is a small plate which is fixed on the gear
frames 2, and is provided to take the paul e' out of gear with the ratchet wheel d
when monkey has returned to its original position after discharging its load: by
this means the chain wheel is allowed to revolve freely so that the empty buckets
for carrying the material can descend to the base of furnaces.
Fig. 11 shows a front elevation of a series of eight furnaces, Fig. 12 is the
plan view and Fig. 13 is the end elevation.
Fig. 11, 12 and 13 show the general arrangement for taking the material from
bunkers and kilns, and conveying it to the blast furnaces and the like. No. 1 is
the gear for lowering the bells. A long foot-path 3 is provided at the sides of
the structure so that the man who lowers the furnace bells is enabled to keep
clear of the buckets which may pass at any time. 2 are the hoisting and travel-
ling gear frames. 4 is a pulley which is driven by an electric motor placed in
the house 6, and drives the pulley 11 by means of a rope 5: pulley 11 is keyed
on to shaft 14, as are also mitre wheels 15. This drives the two endless chains
for taking the buckets when filled from kilns and bunkers to the end of furnaces,
and also travels the buckets when on the return journey to whichever kiln it is
required that they shall be filled. 6 are the hot blast stoves. 6b are the blast
furnaces. 6 are calcining kilns. 7, a line of bunkers. 8 are guides for guiding
the buckets when they are hoisted and lowered. 9 is a platform on which is
attached a hinged table: the buckets (37) are lowered when empty upon this
hinged table and run by gravity to buffers shown on platform 9 and from thence
are switched off down an incline to the endless chain and calcining kilns to be
again refilled. When it is required for the buckets 37 to be hoisted from the
railway level 18, the hinged table on platform 9 is lifted out of the way to allow
the buckets to pass freely, and at the same time a signal is given to the man con-
trolling the electric motor and winch in the house 6 to start the winch for hoist-
ing the buckets. The winch is composed of 3 independent drums for each separate
line on which the monkey a travels, thus containing 24 drums in all. An indi-
cator is attached to the eight drums of the hoisting chain 6 which shows the axact
position of buckets at any time after being attached to the chain b. Fig. 13 shows
the end elevation of the furnaces 6b, ore calcining kilns 6 and coke and limestone
bunkers 7. 10 shows a series of filled buckets on level 18 in position ready for
being hoisted to the top of furnaces. 1, 2, 3 or 4 buckets may be hoisted at one
time from both ends of a set of furnaces, according to the burdening of a furnace.
The buckets run by gravity when leaving the endless chains down to the
level 18, and when returning empty they run down an incline from level 9 to
the kilns to be refilled as shown at 16. 20 are joists forming the structure
required for the overhead gear.
Figs. 14 15 and 16 show the arrangement of bucket.
Figs. 17 and 18 show details of levers to be employed for the doors.
Fig. 21 shows the general arrangement for carrying the buckets and for open-
ing the doors of buckets to allow the material to drop out.
No. 21 in Fig. 14 and Fig. 21 is a sling chain and is slung up in the middle
to hook 49 which is attached to wire rope 52, the latter having a bearing 51
attached to link on hoisting chain. A strong spring No. 50 is provided to pre-
vent the bucket doors opening too early whilst being hoisted which may be
caused by a little uneven pulling of the wire ropes. The wire rope 52 travels
on the chain wheel kat. By means of this strong spring 50 the wire rope 52
is kept taut and sling chain 21 remains a little slack, thus keeping the levers 23

page_text: and 28 in a locked position. No. 22 is a sling chain which is attached to the
bucket and to the hoisting hook 27. 23 are elbow levers which have balance
weights (29) on for bringing the levers back into their normal position. 28 are
spring levers fixed to the axles 53 which are attached to the sides of the bucket 37.
38 are connecting links from the spring levers to the elbow levers 23.
When it is required to let out the material in the bucket the hinged doors 25
are allowed to drop by means of the wire rope 52 being pulled in a vertical direc-
tion, thereby lifting the levers 23 and drawing the spring levers 28 towards each
other and allowing the supporting pin 31 on the hinged door 25 to fall clear.
Fig. 17 shows the parts a and b which work in conjunction with each other,
and when the material has been discharged into the hopper of furnace the hinged
doors 25 are closed by balance weights 29 the pin 31 therefore pushes the spring
levers 28 to one side by sliding up the inclined faces a and b on levers 28. 29%
shows position of balance weight when the doors are closed. 30 shows position
of balance weight when the doors are open. 36 are sloping ends formed inside
truck 37 to allow material to slide easily out of the truck.
Figs. 19 and 20 show method of depressing the bar 39 which is fixed to a link
in the endless chain 40 out of the way of truck down to a level below the under-
side of rails upon which the trucks travel. This bar 39 is provided to travel
truck forward and is forced down out of the way of truck and rails when it
is required to travel the trucks to or from the main line round the kilns.
The switch or depressing plate 42 is put in and out of position by lever 46,
this lever 46 is also connected with the rail switches for taking trucks to and
from main line, and therefore the switch plate 42 and rail switches work simul-
taneously. When the truck is required to be switched off main line the switch
or depressing plate is put in line with the bar 39, as shown in plan-Fig. 20.
41 in Fig. 20 is a coupling bar for connecting 2 trucks together to insure
against the trucks or buckets being twisted when they are hoisted or lowered,
this coupling bar is coupled to 2 trucks when the trucks are at end of furnaces
and are required to be hoisted, when the trucks return empty and are lowered on
to platform 9 on Figs. 11 and 12 the coupling bar is uncoupled, thereby allowing
the trucks to travel to and from furnaces and kilns independent of each other.
48 is bearing for lever 46. 44 and 45 are guides for the switch or depressing
plate 42.
Fig. 22 shows the arrangement of the distributor for distributing the material
required to be charged into furnaces equally all round the bells. 54 are the
driving shafts for revolving the table 61. The material after being discharged
fgrom the buckets is deposited on to table 61, and is taken off this table by means
of unequal wings No. 70, 71, 72, 73, 74 and 75 which are attached to. circular
rings 68 and 69 hanging from the supports 76.
59 and 60 is the secondary bell lowered down on to revolving plate 61 and
hopper 68 to prevent any gas escaping whilst the primary bell is being lowered.
The primary bell 82 and secondary hell 59 and 60 are lowered at one and the same
time being both connected to the shaft 81. 62 are bearings for runners 63, and
are fixed on the under side of revolving tables 61 for supporting the revolving
table and its load. 55 is a circular casing to prevent dust getting into the work-
ing parts. The table 61 has an annular wheel on the under side into which the
driving pinion 64 gears. 65 is a bearing for the driving shaft. 66 is a support
for footstep bearing 67 for the boss in centre of revolving plate to insure the steady
revolving of the plate. 77 are bearings for the main driving shaft 78 which
drives the whole of the distributers for a set of furnaces. 58 is a worm keyed
on shaft 78 and gears into worm wheel 56; the worm wheel 56 runs loose on the
shaft 54.
84 is a claw coupling for putting the worm wheel in and out of gear with the
shaft 54 by means of a clutch lever 85. 79 are joists supporting the bars 76
which carry the circular rings 68 and 69.
Fig. 1 shows the position of the monkey at the time the load travels upwards

page_text: whilst Fig. 1 shows when monkey starts travelling in horizontal direction and
also the position of the forks e, which are left in this position as long as the
monkey travels over the furnaces or the like. When the monkey comes back
the runners forces the forks and at the same time the wheels m into the posi-
tion shown in Fig. 1. At this moment the paul catches into the wheel m,
which also is shown in Fig. 1. When the monkey comes back into this position
the lever which is attached to the paul et is forced out of gear by the nose d³,
this cause the wheel k and chain b with its load to travel down.
Fig. 1 shows how the own weight of the lever d brings the paul e' into gear
with the ratchet wheel and causes that the weight on chain 6 presses the brake g
on to the square ore angle bar t which causes that the bucket hanging on chain &
always is kept on the same level by its travelling in a horizontal direction.
Fig. 13 shows an enlarged end view of this arrangement adapted to blast fur-
nace plant. It also shows that the bucket 17 runs down the inclined 18 to the
end of the furnaces.
Fig. 2 shows an enlarged end view of the hoisting and travelling gear.
Fig. 3 shows a plan of the same without chain and the frame of monkey
broken.
Figs. 11, 12 and 13 show enlarged views and plan of furnaces and kilns.
Fig. 17 shows position of springs on buckets 37 at the moment of discharging.
Fig. 19 and 20 show enlarged details of switch of the line round the kilus.
Figs. 23, 24, 25, 26, 27, 28 and 29 show the details of the distributer. 66 is
the support for carrying the bearings of driving shaft and is provided with a cir-
cular path 83 upon which revolve table runners 63. Support GG is fixed on the
inside of hopper 68. GO shows the secondary bell which is raised and lowered
by the shaft 81.
G1 shows the revolving plate. 70, 71, 72, 73, 74 and 75 show the different
forms of wings which clear the material from revolving plate and discharge it on
to primary bell.
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:-
Gear for hoisting and travelling a load by means of one chain conveying
material in buckets and distributing the said material substantially as described.
Dated this 5th day of November 1900
FRANK DAWSON,
JOHN KUHR.