Improvements in Apparatus for Supplying Fuel to Steam Boiler and other Furnaces.
Year: 1891

page_text: Date of Application, 27th Apr., 1891
Complete Specification Left, 27th Jan., 1892-Accepted, 19th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Supplying Fuel to Steam Boiler
and other Furnaces.
I, JOHN WHITEHEAD of 233 Bury Road, Tottington, Bury, Lancashire,
Engineer, do hereby declare the nature of my said invention to be as follows:-
This invention relates to improvements in that class of fuel supplying and
distributing apparatus for which I applied for Letters Patent No. 11082 on the
16th day of July 1890, and consists of an improved means of conveying the fuel
along the distributing trough described in my former Specification and of feeding
the same to the several discharge funnels in front of the furnaces.
In carrying out my invention I dispense with the endless belt hitherto employed
and substitute therefor an endless pitch chain or its equivalent, which is arranged to
pass over suitable chain wheels and travel along the distributing trough herein before
mentioned.
This pitch chain is provided with a series of projections or scrapers which as the
chain travels along serve to carry forward the fuel until it falls through suitable
outlet apertures into the funnels below.
These apertures are regulated in size to suit the amount of fuel to be discharged
and are each of such a size as to only permit of a small portion of the fuel to pass.
through a space being left at one side for the remaining fuel to pass on.
These apertures may be provided with a damper or slide to regulate the amount
of opening or to shut off the supply to the furnaces.
In this manner I am enabled to effectually carry the fuel forward and distribute
it to the several funnels the divider for dividing the fuel hitherto used being
dispensed with.
Dated this 25th day of April 1891.
JOHN G. WILSON,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Supplying Fuel to Steam Boiler and
other Furnaces.
I JOHN WHITEHEAD of 233 Bury Road Tottington near Bury Lancashire
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 that class of fuel supplying and dis-
tributing apparatus for which I applied for Letters Patent No. 11082 on the 16th
day of July 1890 and consists of an improved means of conveying the fuel along
the distributing trough described in my former Specification and of feeding the
same to the several discharge funnels in front of the furnaces.
In carrying out my invention I dispense with the endless belt hitherto employed
and substitute therefor an endless pitch chain or its equivalent which is arranged to
pass over suitable chain wheels and travels along the distributing trough herein before
mentioned. This pitch chain is provided with a series of projections or scrapers so
shaped that they rest on the top of one or both sides of the trough. As the chain
travels along these projections or scrapers serve to carry forward the fuel until it
falls through suitable outlet apertures into the funnels below.
These apertures are regulated in size to suit the amount of fuel to be discharged
[Price 8d.]

page_text: and are each of such a size as to only permit of a small portion of the fuel to
pass through.
A space being left on one side for the remaining fuel to pass on.
These apertures are provided with dampers or slides to regulate the amount of
opening or to shut off the supply to the furnaces.
In order that the foregoing may be better understood I send herewith a sheet
.of drawings in which. Fig. 1. shows a side view and. Fig. 2,shows a plan of my
apparatus as applied to three furnaces. Eig. 3 is an end view of the trough. 'In
these figures a indicates the trough along which the fuel is carried by the pro-
jections or scrapers which are attached to and operated by the pitch chain c which
passes over the chain wheels c². As the fuel is carried along the trough a a portion
falls through the first aperture d another portion through the second aperture d'and
the remaining portion through the third aperture d. Attached to each of these
apertures are shoots through which the fuel passes from the trough a to the furnaces-
these shoots are described and shown in my former Specification herein before
mentioned. The quantity of fuel to be supplied to each of the furnaces is regulated
by the dampers or slides e actuated by the screw f. 9 indicates the small projections
on the scraper 6 which rests upon the top of the sides of the trough a. My object
in having these small projections on each scraper being to prevent the scrapers from
coming in contact with the apertures in the trough a.
b
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.
1st. The combined apparatus substantially as described and shown hereinbefore
and in the accompanying drawings for the purpose set forth
2nd. The projections or scrapers (attached to the pitch chain) shaped as described
and shown hereinbefore substantially and in the accompanying drawings for the
purpose set forth.
3rd. A trough with outlet apertures of various sizes or differently situated at the
bottom of the trough substantially as described and shown herein before and in the
accompanying drawings for the purpose set forth.
Dated this 26th day of January 1892.
JOHN WHITEHEAD,
Applicant.