Improvements in Hand Hole and similar Covers for Steam Apparatus, Feed Water Heaters, and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION,
Improvements in Hand Hole and similar Covers for Steam
Apparatus, Feed Water Heaters, and the like.
JOSEPH TAYLOR, Melrose Cottage, Potovens, near Wakefield, Yorkshire, Mechanic,
do hereby declare the nature of this invention to be as follows:-
That it is relating to improvements in the construction of internal lids for
economisers & other water and steam apparatus the success of this invention is
attained by being able to put the lids through the same lid hole which it is made to
fit steam or water tite. These lids is constructed in two parts of half circle form &
of suitable thickness of cast iron or other suitable metal which is planed or faced on
the flat sides. Two is then placed together to form one circular lid which is then
made taper or conical shape. Being in two parts this lid can be introduced separately
into the box or whatever it is used for. It is then placed together and is drawn
back into the lid hole which is bored taper or conical shape to suit (largest inside)
with bolts by means of lips or flanges which is cast on each part of the lids.
Dated this Fourteenth day of March 1898
Improvements in Hand Hole and similar Covers for Steam
Apparatus, Feed Water Heaters, and the like.
I,JOSEPH TAYLOR, of Melrose Cottage, Pot-ovens, 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 of fuel economisers
boilers, and steam or other apparatus generally, in two parts interchangeable with each
other and having a tapered periphery, so that each part or half can be inserted into
the hole in the economiser, boiler, steam, or other apparatus prepared to receive it and
be drawn upwardly by an appliance and be there retained by pressure, or by a bridge,
or otherwise and made watertight by a screw and nut.
The advantages obtained by this invention are:
1. That an internal conical lid as understood can in this form be taken in and out

page_text: with each other over the entire flat surface when brought together, or so much of
such faces that I desire to be in contact. I taper the peripheral portions which
correspond to the tapered inner periphery of the bole in which my improved lid has
to fit.
Each half or portion of my lid is provided with a lip or flanged stud at its upper
part at the centre and with a plain surface coinciding with that of the transverse
trued up faces, so that when brought together by a double lipped brace they fit
exactly one to the other and constitute a single lid. This double lipped brace is
attached to or forms part of a screw stem and passes through a hole in a bridge which
straddles the hole and then by a nut, the lid is drawn up tightly in the hole
previously bored for its reception.
My invention is clearly shown on the annexed drawings. Figures 1 and 2 per-
spective elevations of half lids having the lips or flanged studs projecting from the
upper surface.
Figure 3 transverse section of plate such as the upper portion of a fuel economiser,
and showing the half lids in elevation and suspended by the double lipped brace and
its screw from a bridge ready to be drawn up into the hole of the plate when the
nut is turned.
Figure 4 similar section and elevation showing the half lids drawn up and located
in the hole of the plate as the closing medium thereof.
Figures 5 and 6 perspective elevation of half lids with the lips or flanged studs in
a recessed portion of the upper surface.
Figure 7 perspective elevation of the two half lids shown in Figures 5 and 6 in
position and constituting one lid.
Figures 8 and 9 perspective elevations of half lids with the lips or flanged studs in a
recessed portion of the upper surface and with the meeting faces of the half lids
entire.
A, B, two half lids. C, D), trued up transverse faces. E, F, tapered peripheries,
G, H, lips of studs I, J, on upper sides of half lids and centrally arranged.
K, L, lips of brace M for engaging under lips G, H, of studs I, J.
N screw stem of double lipped brace. P bridge stradding the tapered hole Q of
some part of a fuel economiser, or the plate R of a steam boiler, a feed water
apparatus, or other like vessel in which internal lids are required to close the
holes.
S screw out on bridge P.
The lips G, H, may be of shapes other than those shown and be arranged in any
convenient 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:-
1. Internal fitting lid constructed of two parts A, B, interchangeable with plain
meeting faces C, D, tapered peripheries E, F, and of studs I, J, having lips G, H, for
closing tapered boles Q in steam apparatus and the like, as specified and substantially
as shown.
2. An internal lid of steain or other apparatus in two parts A, B, plain faces C, D,
tapered peripheries E, F, studs I, J, lips G, H, brace M, lips K, L, screw stem N,
bridge P, and screw nut S, as specified and substantially as shown.
The 13th day of December 1898.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said: