Spark Catcher" for Locomotives and the like.
Year: 1899

page_text: Date of Application, 19th Dec,, 1899-Accepted, 27th Jan., 1900
DE MULTICATION.
66 Spark Catcher" for Locomotives and the like.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed as communicated to my by Paul Hirsch,
of 28. Treptowerstrasse, Demmin, Pomerania, Germany, and Wilhelm Wolff,
of 21, Treptowerstrasse, Demmin, aforesaid, Merchants, to be particularly
described and ascertained in and by the following statement:-
-
The object of this invention is a spark-catcher for locomotives and the like, so
constructed and arranged that the draught of the chimney is caused to repeatedly
change its direction, and to pass different resistances, before it reaches the outer
air. On their way, the escaping gases pass through passages of different sizes,
whereby, in consequence of the altered velocity, the sparks drop, and are col-
lected in a special receptacle which is under pressure, whence they can be removed
by the opening of a valve, door, or the like.
The spark-catcher is illustrated in the accompanying drawings.
Fig.
being a vertical section along the line CD of Fig. 2, and
Fig. 2 a horizontal section along the line A B of Fig. 1.
The arrangement is as follows:-A sheet-metal cover a in the form of a
truncated cone is divided into two parts by means of a transverse partition b
extending to two thirds of the height thereof, of which parts, the one c is open
at top and bottom and serves for the passage of the steam and the smoke gases
(in locomotives and locomobiles for instance) whilst the other part d is closed at
the top by a grating m and below by a bottom. In the chamber d the sparks,
carried along by the draught of the chimney, collect and can be removed through
the opening in the lowest part which is closed by means of a slide, valve e or
the like.
Above the chamber c, the gases enter a further chamber f in which their
velocity is altered as well in relation to extent as direction.
From the space f the heating gases, having been almost forced to turn back by
the wall or partition b projecting beyond the grating m without, however, being
able to turn off to the side, direct out of the space c, pass on in a horizontal
direction, and meet with several obstacles or resistances after passing through
which they reach the open air through the outlet g after a further upward
leviation.
The obstacles or resistances, introduced between ƒ and g consist of alternate
gratings composed of vertically arranged bent irons i and flat irons k. As the
first of their open spaces are arranged obliquely and in the opposite direction to
that of the heating gases the sparks carried along are caught and diverted down-
wards, so that they fall through the grating m which shuts off the space d. The
flat-irons behind the intermediate spaces of the bent arms i guide the sparks
passing through the spaces towards the inner angle iron of the next grating.
The turning off of the sparks is assured by the obstacles i and k at the back
being more inclined than those in front.
A special advantage of the present construction is that, in the chamber d,

page_text: there is a surplus pressure, so that the sparks contained therein cannot further
burn when there is a great strain on the fire-place, as no air can penetrate through
any pervious spots in the valve, but rather the smoke gasses present in the
chamber d are forced outwards through these pervious places.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed we declare that what
we claim is :-
=
Spark catcher comprising a hollow truncated cone a divided by means of a
partition wall 6 into two chambers c and d, obstacles or resistances consisting
alternately of angle iron gratings i and flat-iron gratings k arranged with oblique
passage openings above the partition wall b, which obstacles are opposed to the
direction of the escaping mixture of smoke and steam as well as to the cross
section thereof and cause the sparks carried along to drop on to a grating m
through which they fall behind the partition wall into the chamber d which
stands under pressure and can be emptied, substantially as described and illus-
trated in the accompanying drawings.
Dated this 10th day of December 1899