Improvements in or connected with Self-acting Boiler Firing Apparatus.
Year: 1889

page_text: Date of Application, 24th Sept., 1889
Complete Specification Left, 28th. Jan., 1890-Accepted, 15th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with Self-acting Boiler Firing
Apparatus.
I, THOMAS WRIGLEY of Waterside House, Todmorden in the County of York,
Mill Manager, do hereby declare the nature of this invention to be as follows:-
My invention relates to that kind of self-acting apparatus for firing a range or
battery of boilers in which the coal is distributed into the hoppers of the mechanical
stokers attached to the boilers by means of a creeper or conveyor revolving in a
trough extending above said hoppers, and is lifted into said trough from the floor by
means of an elevator, and my invention consists in improved arrangements for
supplying the hopper of the elevator with coal self-actingly and thus save hand-
labour, the coal baying hitherto been filled into the elevator hopper by hand with
a shovel.
In carrying my invention into effect, I arrange a series of hoppers or a long
hopper divided into compartments of large capacity below the level of the roadway
so that the coal can be tipped into the hoppers or compartments from the carts or
trucks. The hopper is made wedge-shaped and each separate hopper or compart-
ment fitted with an adjustable sliding door, through the opening of which the coal
falls into a frough extending below the line of hoppers or compartments. A creeper
or conveyor is arranged in this trough and by its rotation conveys the coal to the
hopper of the elevator. The latter lifts the coal into the trough above the range of
boilers in the usual way.
151
1000
COMPLETE SPECIFICATION.
Improvements in or connected with Self-acting Boiler Firing
Apparatus.
I, THOMAS WRIGLEY, of Waterside House, Todmorden in the County of York,
Mill Manager, 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 relates to that kind of self-acting apparatus for firing a range or
battery of boilers in which the coal is distributed into the hoppers of the mechanical
stokers attached to the boilers by means of a creeper or conveyor revolving in a
trough extending above said hoppers and is lifted into said trough, from the floor
by means of an elevator, and my invention consists in improved arrangements for
supplying the hopper of the elevator with coal self-actingly and thus save hand
labour, the coal having hitherto been filled into the elevator hopper by hand with
a shovel.
On the two sheets of drawings appended hereunto fig. 1 shows a sectional eleva-
tion of my improved arrangement and fig. 2 a plan of the saine.
To the boilers a a the mechanical stokers bare fixed and supplied with coal
through shoots e from a trough d fitted with adjustable doors d operated by means
of the handwheel d, shaft d³, pinion d, and
trough through the shoot e by the elevator
the creeper or conveyor y rotated by means of
from which the elevator is also driven by
drawings. This arrangement of elevator and
rack d. The coal is fed into the
and conveyed along the trough by
pulleys and strap from the shaft h
pulleys and strap as shewn on the
trough with creeper for supplying

page_text: mechanical stokers has been previously used and does not form part of my invention.
Hitherto the coal has been filled into the hopper at the lower end of the elevator
by hand with a shovel. This labour is saved and a convenient regulation of the
quantity of coal supplied is obtained by means of my improved arrangements, which
are as follows:
1 arrange a series of hoppers or instead thereof a long hopper divided into
compartments of large capacity below the level of the roadway so that the coal
can be tipped into hoppers or compartments from the carts or trucks. The hoppers
are made wedge shaped similarly as shown so that the coal readily slides to the
bottom, and may be made of iron as shewn on the drawings, or built up in masonry
Each separate hopper or compartment is formed with an oblong opening m. fitted
with a sliding door n which can be adjusted by means of a screw spindle ¹
threaded at the lower end ihrough a tapped lug on the sliding door and
revolving in a bracket fixed to the hopper at the upper end, which is fitted
with a hand wheel, or equivalent means for adjusting the opening of the door
may he employed. Through the openings of the doors the coal falls into a trough o
extending below the line of hoppers or compartiments. A creeper or conveyor ?
arranged in this trough and conveniently rotated by means of pulley and strap p²
from the shaft of the creeper or conveyor g, as it requires to be rotated at a slow
speed only. The creeper or conveyor p may be of any ordinarily used or known suitable
kind, and by its rotation conveys the coal along the trough o to the hopper ƒ¹ of
the elevator the trough o being closed at the end and having an opening on
its underside through which the coal drops into the elevator and is lifted by
it into the trough which distributes it to the mechanical stokers of the separate
boilers.
The arrangement of hoppers and creepers for supplying the elevator are shewn on
the drawings with the roadway raised above the floor of the boiler house, this being
the most usual relative position of the floor and roadway, but obviously the arrange-
ment is equally applicable if roadway and boiler house floor are on the same level
or the boiler house floor above the roadway, the hoppers & and trough o being in
that case arranged in pits below the roadway floor and the elevator made corre-
spondingly longer.
The arrangement for driving.the creepers and elevators obviously may be varied to
suit the circumstances.
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
In combination with a trough and creeper or conveyor for supplying mechanical
stokers for boilers and an elevator for supplying said trough, a hopper or hoppers k
so placed that the coal can be tipped into them from the carts or trucks and fitted
with adjustable doors, and a trough with creeper or conveyor receiving the coal
from said hopper or hoppers and conveying it to said elevator substantially as herein-
before described and illustrated by the drawings.
Dated the 27th day of January 1890.
EMMOTT & CO.,
Agents for the Applicant.