Attaching them to Boilers.
Year: 1885

page_text: .
Attaching them to Boilers.
I, GEORGE JAMIESON SCOTT, residing at Bayview, Rubislaw, Aberdeen Gentle-
man do hereby declare the nature of my invention for IMPROVEMENTS IN THE
MANUFACTURE OF GALLOWAY TUBES AND ATTACHING THEM TO BOILERS to be as
follows:-
In this Improvement I make the flanges at one or both ends of the Tube inverted
as may be required, so that when they are attached to the Boiler the flanges and
rivets are in the water space and by this means the rivetting is not exposed to the
action of the fire-I also from choice insert a washer of suitable thickness between
the boiler plate and Tube adjusted so as to suit the shape of the plate-This
washer can be dispensed with when the surfaces are flat or when the ends of the
tubes are made to conform to the circle or shape of the surface against which they
are to be fastened.

page_text: Attaching them to Boilers.
I, GEORGE JAMIESON SCOTT residing at Bayview, Rubislaw, Aberdeen, Gentleman
do hereby declare the nature of my invention for IMPROVEMENTS IN THE MANU-
FACTURE OF GALLOWAY TUBES AND IN ATTACHING THEM TO BOILERS, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
In this patent the flanges at both ends of the Boiler Tubes commonly known as
Galloways Tubes or Tubes of a like construction are inverted so as to place the
seam and rivets in the water space. By this means the joints and rivet heads are
not exposed to the action of the heated gases. Where necessary I also from choice
insert a washer of suitable thickness between the boiler plate and tube adjusted
so as to suit the shape of the plate to which the Boiler Tube is to be fastened.—
This washer can be dispensed with when the surfaces are flat or when the ends of
the tubes are made to conform to the circle or shape of the surface against which
they are to be fastened. I sometimes make these tubes with one end only inverted,
the other end having the flanges turned out in the usual way.
This arrangement is made in the following manner Fig. 1. representing the
cross tube in a flue. Fig. 2 is a section of Fig. 1 at the section line xy. The
flanges A A being inverted the rivets are in the water space. Fig. 3 shews
the Tube used as a standard for the boiler, the top flange being inverted and an
iron washer B which may or may not be used being inserted between the Tube
and Boiler. The other flange C being made in the usual manner turned out and
resting on a water way. Fig. 4 is a section of Fig. 3 at the section line x y
showing the flange A inverted. The flange C being turned out. Fig. 5 is a sketch
of an iron washer which if necessary can be used if the inserted flange is not
shaped to suit the surface to which it is to be attached. Fig. 6 is a section of
Fig. 5 at the section line D E.
-
•
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim and desire to be secured to me is the arrangement of inverted flanges
on Boiler Tubes commonly known as Galloways Tubes and Tubes of a like:
construction,
Dated this fant Ja T. D
V