Improvements in Hand-hole and similar Internal Covers for Steam Apparatus, Fuel Economizers, Feed Water Heaters and the like.
Year: 1899

page_text: Date of Application, 29th June, 1899
Complete Specification Left, 29th Mar., 1900-Accepted, 29th June, 1900
PROVISIONAL
Improvements in Hand-hole and similar Internal Covers for Steam
Apparatus, Fuel Economizers, Feed Water Heaters and the like.
JOSEPH TAYLOR, Melrose Cottage, Potovens, near Wakefield, Mechanic, do
hereby declare the nature of this invention to be as follows:-
or
The object of this invention is certain improvements in and connected with
the lids of apparatus known as fuel economizers, feed water heaters & the like,
be readily removed & replaced
lids ΟΙ covers can
by which the
or inspection pur-
the top
outside for cleaning repairing
from
poses. The invention consists in forming the lids so as to present a flat or
approximately flat interior surface offering little or no obstruction in the top
box passage way. For the purpose of my invention the lid proper is constructed
in two or more parts of circular form of any suitable thickness, having two
small flats opposite each other on the outer edge of each part sufficient to allow
it to go through the same hole it is made to fit. Two or more of those circular
parts are faced or turned to fit together. The one intended for the bottom or
inside may be made with a projecting part in the centre of a D or other suitable
shape containing a hole or recess suitable for bolt for drawing the lid into
position. The other part or parts of the lid containing a D or suitable shaped
hole so that they will fit on the projecting part of the one intended for the
bottom or inside. The parts being then placed together so that the flats on
the outer edge do not come together, the whole is then turned taper or conical
shaped on the outer edge to fit the opening or aperture in the box which is
tapered corresponding with the taper of the lid, largest inside. The parts of
the lid are introduced into the box separately and then placed together and
drawn back into the lid hole by means of any suitable appliance.
Tune 1899.
JOSEPH TAYLOR,
Melrose Cottage, Potovens, near Wakefield.
Improvements in Hand-bole and similar Internal Covers for Steam
Apparatus, Fuel Economizers, Feed Water Heaters and the like.
I, JOSEPH TAYLOR, of Melrose Cottage, Potovens, near Wakefield, Yorkshire,
Mechanic, 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:--
This invention has for object the construction of internal lids for fuel
hoilors and steam or other apparatus generally in two parts and

page_text: having a conical formation so that same can be fixed in the hole in the
economiser, boiler, steam or other apparatus made to receive it from the out-
side and be drawn in. position upwardly by a suitable appliance and be there
held in said position by the internal pressure or by a cross bar or otherwise.
Hitherto lids or covers have been fitted to fuel economizers, boilers and the
like by means of circular or oval plugs having a tapered periphery. In the
former case the lid or cover had to be inserted from the inside and when in-
serted in position could only be taken out by passing same through an opening
provided specially for the purpose. For instance in fuel economizers a number
of joints have to be broken, causing considerable labour and loss of time before
the lid can be taken out. In the latter case the lid or cover being of an oval
form is passed through from the outside but owing to the great expense and
difficulty of manufacturing lids of this description absolutely accurate, inter-
cliangeable, steam, and water tight they are only occasionally employed. This
invention is designed to overcome the above mentioned difficulties.
To carry my invention into practice I make a lid in two parts preferably in
halves one a top portion and the other a bottom portion. The parts in contact
are faced accurately making a steam or water tight joint.
Both are then turned to a suitable taper and each portion provided on the
said taper with two flats which are opposite to each other. The flats of the top
portion lie at right angles to those of the bottom portion. The object of the
above mentioned flats is to allow the lid portions to be passed through its own
hole slantingly. To place the lid in position I pass the first or bottom portion
of the lid or cover slantingly through its opening by means of the two flats
provided on its circumference and then rotate the lid 90°. The second or top
portion of the lid or cover is next inserted in a like manner but not rotated
the 90°. It is dropped on the D shaped projection of the bottom portion being
cored out to fit this shape. The lid or cover has now the appearance of a solid
casting & is easily drawn up in position by means of a bolt or other appliance.
In order that my said invention may be fully understood I shall now proceed
to describe the same and for that purpose shall refer to the several figures on
the annexed sheet of drawings the same letters of reference indicating corre-
sponding parts in all the figures.
Fig. 1 and 4 side elevations of the bottom and top portion of the lid fixed in
sition. Fig. 3 transverse section of the lid also fixed in position the bottom
and top portions being placed together. Fig. 2 plan of lid.
A B two portions of the lid, A being the bottom and B the top portion.
C D faced transverse faces. EF tapered edges-to fit correspondingly shaped
edges G of the plate H. I J K L flats formed on the tapered edges. M dee
shaped projection to fit recess N cored out of centre of B. channelled apera-
ture for inserting bolt to draw lid or cover up in position.
The projection M and the recess N may be of shapes other than those shown
and arranged in any suitable manner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
An internal lid of steam or other apparatus in two parts for closing hand
holes or other openings in steam apparatus, fuel economizers, feed water heaters,
and the like arranged and operated substantially as herein before described and
illustrated in the accompanying drawings.
Dated this 28th day of March 1900.