Improvements in and connected with Furnaces.
Year: 1891

page_text: Date of Application, 19th Mar., 1891
Complete Specification Left, 21st Dec., 1891-Accepted, 19th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Furnaces.
GEORGE HARRY BIDDLES Mechanical Engineer 22 Porter Street Highfields
Leicester do hereby declare the nature of this invention to be as follows:-
The base are mechanical rocking bars and are made to move by means of a diso
or cam and can be worked at varying speeds & spaces. The bars are connected to
each other by means of connecting links & rockers the feed hopper is of wrot iron
of the size & shape varying to suit the material to be burnt & is made that it can
discharge a given quantity into the furnace of fuel at a time. While this is being
done it excludes all air entering the furnace.
Dated this 17th day of March 1891.
COMPLETE SPECIFICATION.
Improvements in and connected with. Furnaces.
I, GEORGE HARRY BIDDLES, Mechanical Engineer, 23 Porter Street, Highfields,
Leicester, 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 improvements relate to furnaces for the burning of town refuse of every
description.
Reference being had to the accompanying sheet of drawings, in which like letters
of reference indicate corresponding parts of same.
In accordance with my invention the base of my device is provided with
mechanical rocking bars A which are caused to move up and down by means of
the device shown at B B &c., and also can be moved at varying speeds and
spaces.
Said bars A are connected to each other by means of connecting links and
rockers.
The device according to my invention is shewn in sectional elevation Figure 1.
Figure 2 being a horizontal plan view of same.
The grate is made up of a series of bars each alternate one being caused to rock
by means of the contrivance hereunder referred to. That is to say, referring to
the accompanying drawings the bars A remain stationary, the bars A' being the
bars which are caused to rock or oscillate. In the plan view Figure 2 the central
portion of the furnace bars comprising the grate are removed in order as shown the
actuating mechanism below.
The stationary bars A. as well as the rocking bars A' take a bearing centrally on
the transverse rod C. The stationary bars A at each end taking a bearing on the
stops or lugs D. The rocking device consists of the following arrangement of parts
and by means of which the rocking bars can be moved at and through varying
speeds and spaces.
Said rocking device consists of the following arrangement of parts a link E is
suspended underneath the front of furnace to which is attached an actuating rod
or bar B. To the lower end of the link D is attached the connecting rod B with
distant pieces F.
The upper end of the inclined connecting rod B is attached to link G pivotted in
the fixed hanging bracket H. A member extending below and right along the fire
bars provided with a series of rockers proper B'. I provide a rod having a scries

page_text: ;
of members B' which at their upper ends may be of conc or any other convenient
shape the lower portion of the members B' is received and confined within the two
sides of the connecting rod B having a certain amount of play determined by the
distance apart of the pin a.
Now, on the rod B' being actuated the rockers proper B2 are caused to assume
the position shown at Figure 1 and hence cause the rocking bars A' to assume the
position shewn in Figure 1. A reverse action upon the rod B₁ causing the
rockers B³ to assume the reverse position to that shown in the drawings and
whereupon the rocking bars A' will be brought into the same plane as the fixed
bars A.
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 :-
The improvements in "destructor" and other furnaces substantially as herein
described, and shown in the accompanying sheet of drawings.
Dated this 18th day of December 1891.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicant.