A Hot Water or Steam Boiler Scavenger or Scraper.
Year: 1889

page_text: Date of Application, 13th Mar., 1889
Complete Specification Left, 13th Dec., 1889-Accepted, 13th Mar., 1890
PROVISIONAL SPECIFICATION.
A Hot Water or Steam Boiler Scavenger or Scraper.
TOM WILEY HARTLEY Hot Water Engineer 16 Cemetery Road Sheffield do hereby
declare the nature of this invention to be as follows:—
A wrought iron or copper Scavenger or Scraper, inade of flat iron or copper bent
edgewise, to fit the inside of boilers no matter what shape & will be fixed in side at
the far end or bottom of boiler when the boiler is at work & will be connected with
two wrought iron or copper rods of sufficient length & strength to allow sufficient
hand hold out side of boiler to propell the Scavenger backwards & forwards so as to
draw out all sedement or dirt out of boilers through mud tubes when portable plugs
are unscrewed at the front or bottom of boilers. The tubes will be of sufficient length
to come out side the brickwork so that when the boiler requires cleaning the portable
plugs only needs unscrewing.
COMPLETE SPECIFICATION.
A Hot Water or Steam Boiler Scavenger or Scraper.
TOM WILEY HARTLEY Hot Water Engineer Economy Works 16 Cemetery Road
Sheffield Yorkshire 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 :-
A wrought iron or copper Scavenger or Scraper made of flat iron or copper bent
edgewise to fit the inside of boilers no matter what shape & will be fixed inside at the
far end or bottom of boiler when the boiler is at work & worked from the front of
boiler so that the sediment or dirt can easily be drawn out of boiler while boiler is
fixed through mud tubes when portable plugs are unscrewed at the front or bottom of
boiler either with solid rods or chains & worked from front or end top or bottom of
boiler. The Scraper may be made in sections & connected together with rivets or
screws according to description of boiler.
use.
;
To better explain my Invention I have appended a sheet of drawings with the same
references to similar parts throughout. Fig. 1. B. B. is an ordinary hot water boiler
part broken away to show the Scavenger or scraper S, S, with its rods r. r. and
the mud tubes c, c, through which the rods move when the scavenger or scraper is in
Fig. 2 shows the scraper blade only. Fig. 3 is an inside view (with parts of
hoiler to right of dotted line b. 6'6" Fig. 1 removed) to show position of scraper when
the boiler is at work. The scraper fits loosely inside the boiler so as to be moved easily
from end to end of the boiler and it is generally hinged at the centre ¹ and some-
times I cut the edges away at h, h, h, to miss the insido projections occurring in some
boilers I generally fit the scraper as follows:-the scraper is held against the inner
face of the boiler front, the rods r,,,, are passed through the mud tubes c. c.
(before these tubes are fastened into the boiler front) and the nuts n. n. are screwed
on the rods these rods are then screwed into the scraper & made rigid by tightening the
nuts against the scraper the back end of the boiler is now put in the tubes c. c. screwed
into the boiler front as shown in the drawings, and the scraper pushed back to the far
end of the boiler as in Fig. 3, and the plugs (one of which is shown at p Fig. 3)
screwed into the tubes making the boiler water tight and keeping the scavenger or
scraper in position, when the boiler is at work. To clean the boiler the plugs p are
with drawn and the scraper worked from end to end of the boiler until the incrustation
sediment etc. is expelled through the mud tubes c. c. the ends of the rods are looped

page_text: at,, so that handles may be attached if desired to give greater facility in working
the scavenger or scraper. I do not confine myself to the exact form of scavenger
that I have described nor the position of the mud tubes & rods, as these may be varied
according to circumstances and I make the scavenger or scraper to suit different
shapes of boiler as the form of such scavenger or scraper may be varied without
departing from the principle of my Invention.
Having now particularly described and ascertained the nature of iny said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
A scavenger or scraper (for hot water or steam boilers) with mud tubes in connec-
tion therewith as herein before described and set forth in the drawings.
Dated this 11th day of March 1890.
TOM WILEY HARTLEY.