Year: 1887

page_text: Date of Application, 25th May, 1887
Complete Left, 24th Feb., 1888
Complete Accepted, 29th Mar., 1888
H. GARDNER,
166, Fleet Street, London,
Agent for the said Sir E. Green, Bart.

page_text: An Improvement in Automatic Reversing Mechanism for the
Scrapers of Fuel Economizers.
I, Sir EDWARD GREEN, Baronet and M.P. for Wakefield, of Heath Old Hall,
Wakefield, in the county of Yorks, Fuel Economizer Manufacturer 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 my invention is to cause a rapid and more positive action of the
reversing gear of the scrapers of fuel economizers by arranging the upper part of the
trip lover with a race in which a ball or other rolling, or it may be a sliding
body, has a. free action to either end as the trip lever is lifted by the usual
mechanism to just beyond a vertical position the ball or other body then suddenly
moving to the outer end of the race to throw the reversing gear over and so reverse
the travel of the scrapers.
My invention will be understood by the annexed drawings in which at Figure 1
I show a plan view and Figure 2 an end elevation of so much of gear for reversing
the operation of scrapers of fuel economizers.
A is the upper frame carrying transversely a shaft B operated by a belt on the
rigger C. This shaft B carries a double clutch tube D free to slide thereon to engage
in either of the clutch wheels E, F, when shifted over by the trip lever G.
The clutch wheels E, F, are in gear with a wheel H common to both this being on
a shaft by which the scraper chain pullies I are operated by gearing into the wheel J
the pulley and wheel being connected by a bolt sliding in a groove for reverse of
motion as described in my previous Specification No. 2184 of 1866.
The first gear wheel J of the series operates a pinion K, the shaft of which
is set transversely in the frame A and has at its outer end a worm L for communi-
cating motion by the combination worm and spur wheel M to the wheel N upon the
axis of which a two armed stud is moved the two arms P, Q, extend within reach of
the trip lever G and as the trip lever is lifted by the arms P, Q, alternately to bring
the trip lever up and just beyond a vertical position, the ball 1 or it may be a sliding
weight as indicated at Figure 3 suddenly moves to the opposite end of the race S,
said race being formed from a flanged link or eye as at Figure 2, or by a rod S as at
Figure 3 so that the momentum or thrust of the ball or weight as the case may be
to the lower part of the race or rod S carries the trip lever over rapidly and shifts
the clutches from one gear wheel to the other alternately as the scrapers arrive at
the end of their descending stroke and at the end of their ascending stroke or travel,
the motion of the scrapers being reversed while the shaft B continues to travel in one
direction.
I do not claim any novelty in reversing the motion of scrapers of fuel economizers
from the upper frames nor do I claim the method by which the reversing action of

page_text: said scrapers is produced except when a free moving ball within a race, or a free
moving weight is used to slide upon a bar or its equivalent whereby when the trip
lever has passed the vertical centre by means of the arms P, Q, the ball or weight
partakes of a momentum and gives a sudden impulse to the trip lever for shifting the
clutch rapidly over for effecting the reversing action.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Providing the upper part of the trip lever of a fuel economizer scraper's reversing
gear with a ball, or other rolling, or sliding body, which has a free action to either
end, for carrying said trip lever suddenly over, for reversing the travel of the scrapers
as set forth, and substantially, as shown at R, S, Figures 1, 2, and 3 of the annexed
drawings.
The 24th day of February 1888.
H. GARDNER,
166, Fleet Street, London,
Agent for the said Sir E. Green, Bart., M.P.