An Improved Tool for Raking out or Withdrawing Ashes or other Refuse from Boiler Flues and Tubes, Applicable also for other like of analogous Purposes.
Year: 1885

page_text: •
An Improved Tool for Raking out or Withdrawing Ashes or
other Refuse from Boiler Flues and Tubes, Applicable also
for other like of analogous Purposes.
I, EVAN THOMAS; of The Cambrian Lamp Works, Aberdare, in the County of
Glamorgan, Safety Lamp Manufacturer, do hereby declare the nature of said
invention for "AN IMPROVED TOOL FOR RAKING OUT OR WITHDRAWING ASHES OR
OTHER REFUSE FROM BOILER FLUES AND TUBES; APPLICABLE ALSO FOR OTHER
LIKE OR ANALAGOUS PURPOSES" to be as follows:-
The improved tool which constitutes this invention consists of à rod or bar at
one end of which is hinged a pair of plates or wings which are capable of being
opened out on the hinge to form a scraper blade extending across the end of the
rod or bar.
When the wings are closed or folded back a wedge-shaped head is formed at the
end of the rod at which they are carried. A wedge-shaped piece either formed
with or attached to the rod is carried at the extreme end thereof.
The wings
being folded back the tool is thrust to the desired distance into the ashes or other
refuse required to be withdrawn from the flue or tube of a boiler and by the act
of withdrawing it the wings are opened out and thereby the ashes or other refuse
may be readily withdrawn.
The tool, which may be of iron, steel or other suitable material, may be applied
in cleansing drain and other pipes and for other like or analagous purposes.
Dated this 92id dow of March 1905

page_text: for other like or analagous Purposes.
I, EVAN THOMAS, of the Cambrian safety-lamp works, Aberdare, in the County
of Glamorgan, safety-lamp 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 improved raking or scraping tool which constitutes this invention consists
of a rod or bar of iron or steel at one end of which is hinged a pair of plates or
wings which are free to move on the hinge.
When extended, the wings constitute a scraper blade extending across the end
of the shank. By this scraper blade ashes or other refuse may be readily removed
from the grate or flue of a boiler, or from a drain or other like pipe, tube or
conduit.
When the wings or plates are folded back they form a wedge-shaped head to
the tool whereby it readily penetrates the refuse intended to be removed. On the
outer extremity of the shank, and beyond the hinge, is formed or secured a wedge-
shaped nose to facilitate the insertion of the tool into the ashes or other refuse.
The act of withdrawal causes the plates or wings to open out on the hinge until
they assume a position which is approximately at right angles to the shank.
They are prevented from moving further round on the hinge by the wedge-shaped
nose aforesaid which acts as a stop.
The tool is now withdrawn and the refuse behind it is scraped out.
Referring to the accompanying sheet of illustrative drawings, Fig. 1 represents
a side elevation of a raking tool constructed according to this invention. The
wings or plates a hinged at b to one end of the bar or rod A are shown folded
back on the stops c. On the extreme end of the bar is fixed or formed the wedge-
shaped nose e. Fig. 2 is a plan of Fig. 1. Fig. 3 represents a plan of the tool
with the wings a extended. Fig. 4 is an end view of Fig. 3.
The tool, with the wings a folded back, is inserted in a flue, tube or other like
or analogous way and penetrates the ashes or other refuse which it is desired to
remove, and is thrust therein to the required extent. It is then withdrawn, and,
by the resistance offered thereto by the refuse, the wings a are caused to open out
on, the hinge b; as seen at Figs. and 4. The wings are prevented from moving
further round on the hinge b by the wedge-shaped nose e against which they bear,
as shown,
The refuse which lies between the scraper and the operator may now be
.withdrawn.
In the tool represented in the drawings the wings a are made square on their
upper edges and rounded below. The square edge may be employed for clearing
a flat surface such as the upper side of the fire-bars of a boiler furnace, and the
lower or rounded edge for clearing a rounded surface, such as that of a boiler flue.

page_text: 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
The improved tool consisting of plates such as a hinged to one end of a rod or
bar such as A and arranged and operating substantially as herein-before described
and shown on the accompanying sheet of drawings for the purposes set forth.
Doted thin 01nt d
100%