Improvements in Steam Boilers.
Year: 1894

page_text: Date of Application, 17th Aug., 1894
Complete Specification Left, 9th May, 1895-Accepted, 15th June, 1895
Improvements in Steam Boilers.
I, CARL FINGER, of 144, Northampton Street, Wilkes Barre, in the County of
Luzerne, and State of Pennsylvania, United States of America, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to sectional tubular boilers, and its object is to provide a
boiler which is comparatively simple and durable in construction; is constructed
entirely of wrought iron; dispenses with all stay bolts; and is arranged for
conveniently cleaning the several parts, or repairing the individual water tubes,
whenever necessary.
The improved steam boiler is provided with sets of longitudinally extending and
inclined water tubes, each set being connected at its upper end with a head and at
its lower end with a head, arranged in the front and rear ends of the brickwork
supporting the boiler. The heads are arranged in pairs, one pair being located
above the other and connected with each other by cross pipes and short pipes at
their contacting rims. Any desired number of such sets of pairs of heads may be
arranged alongside of each other.
The uppermost pair of heads is connected by
pipes or suitably shaped saddles or branches with the longitudinally extending
steam drum provided with an upwardly extending pipe supporting a superheated
steam drum from which the steam to be used in the engine or other device, is
taken. It will be understood that there is a separate steam drum for each set of
pairs of heads.
The lowermost row of heads is supported on transversely extending beams built.
in the brickwork, in which is also arranged the usual fire-box extending under the
uppermost ends of the sets of water tubes and part of the heads. Each head is
made circular in shape and is provided with a circular rim on the inner end of
which is welded or otherwise attached a sheet in which extend the ends of the
tubes of the set belonging to the corresponding head. In the front end and at the
inside of each rim is welded or otherwise formed or secured an oblong mau-hole
ring faced on the inner side to receive a lead packing ring engaged by the man-
hole cover preferably curved and seated on the lead packing ring or joint. Each
man-hole cover carries one or more bolts extending outward and held in the
usual yoke or bridge piece seated against the outer face of the man-hole ring.
It will be seen that by this arrangement the man-hole cover can be readily
removed from its seat on the ring so as to give access to the several tubes entering
this head, to permit of expanding the tubes, or otherwise repairing the same in
case of injury. It will also be seen that by this construction no stays whatever
are necessary for the heads, so that the entire boiler can be constructed from
wrought iron, thus rendering the boiler stronger and at the same time permitting
of generating steam to a correspondingly higher pressure.
The lowermost row of heads is connected with the usual mud drum in which the
sediment contained in the water can readily accumulate.
...
י
1001
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.

page_text: improvements in Steam Boilers.
I CARL FINGER, of 144 Northampton Street, Wilkes Barre, in the County of
Luzerne and State of Pennsylvania, United States of America, Mechanical
Engineer 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 relates to sectional tubular boilers and its object is to provide a
boiler which is comparatively simple and durable in construction; is constructed
entirely of wrought iron; dispenses with all stay bolts, and is arranged for
conveniently cleaning the several parts or repairing the individual water tubes
·whenever necessary.
The invention consists of certain parts and details and combinations of the
same, as will be fully described hereinafter and then pointed out in the claims.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar letters of reference indicate corresponding parts in
all the figures.
Figure 1 is a sectional side elevation of the improvement;
Figure 2 is an enlarged transverse section of the same with parts in elevation;
and
Figure 3 is an enlarged sectional side elevation of one of the heads.
The improved steam boiler is provided with sets of longitudinally extending aud
inclined water tubes A, each set being connected at its upper end with a head B,
and at its lower end with a head B₁, arranged in the front and rear ends of the
brick-work C supporting the boiler.
The heads B and B are arranged in pairs, as is plainly indicated in Figure 2,
one pair being located above the other and connected with each other by cross
pipes D, and short pipes E at their contacting rims. Any desired number of such
sets of pairs of heads may be arranged alongside of each other, as will be readily
understood by reference to Figure 2, in which three sets of such pairs of heads
are located alongside of each other. The uppermost pair of heads B or B' is
connected by pipes F or F1 respectively, or with suitably shaped saddles or
branches, with a longitudinally extending steam drum G provided with
upwardly extending pipe H supporting a superheated steam drum I from which
the steam to be used in the engine or other device, is taken. It will be under-
stood that there is a separate steam drum for each set of pairs of heads as will be
seen in Figure 2.
an
The lowermost row of heads B or B' is supported on transversely extending
beams, built in the brick-work. In the brick-work is arranged the usual fire
box K, extending under the uppermost ends of the sets of water tubes A and part
of the heads B, as will be readily understood by reference to Figure 1.
Each head B or B' is made circular in shape, and is provided with a circular
rim B2 (Figure 3) on the inner end of which is welded or otherwise attached a
sheet B³ in which extend the ends of the tubes A of the set belonging to the corre
sponding head as shown in Figure 1. In the front end and at the inside of each
rim B2 is welded or otherwise formed or secured an oblong man-hole ring B faced
on the inner side to receive a lead packing ring B' upon which is seated the
preferably curved man-hole cover B. Each man-hole cover B carries one or
more bolts B7 extending outward and held in the usual yoke or bridge piece B³
seated against the outer face of the man-hole ring B4.
It will be seen that by this arrangement the man-hole cover B6 can be readily
removed from its seat on the ring B so as to give access to the several tubes

page_text: entering the head, to permit of expanding the tubes or otherwise repairing the
same in case of injury.
It will also be seen that by this construction no stays whatever are necessary for
the heads B or B¹, so that the entire boiler can be constructed from wrought iron,
thus rendering the boiler stronger and at the same time permitting of generating
steam to a correspondingly higher pressure.
The lowermost row of heads B' is connected with the usual mud drum L in which
the sediment contained in the water can readily accumulate.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is,
1. A boiler comprising water tubes arranged in sets, heads connected to the
front and rear ends respectively, of the sets of water tubes, said heads being
arranged in sets of pairs, a steam drum connected to each set of pairs of heads, and
diagonal cross pipes connected to adjacent heads belonging to the same set of pairs,
so that water and steam can pass from one head to that located laterally above
and connected to the same steam drum, substantially as described.
2. A steam boiler provided with a head comprising a circular rim, a sheet
welded or otherwise secured to the inner end of the said rim and carrying the water
tubes, a ring welded or otherwise secured to the outer end of the said rim, a man-
hole cover adapted to be seated on the inner face of the said ring, a rod carrying
the said cover, and a yoke or bridge carrying the said rod and adapted to rest on
the outer end of the said ring, substantially as shown and described.
Dated this 9th day of May 1895
A. M. & WM. CLARK.
53, Chancery Lane, London, Chartered Patent Agents.