Improvements in Method and Means of Jointing Parts of Boilers and Coupling Flange-joints generally.
Year: 1894

page_text: Date of Application, 24th Dec.. 1894-Accepted, 23rd Feb., 1895
COMPLETE SPECIFICATION
Improvements in Method and Means of Jointing Parts of Boilers
and Coupling Flange-joints generally.
1, FREDERICK HENRY CRIDLAND, of "The Maze," Lansdown Road,
Bournemouth, in the County of Hampshine, Chartered Accountant, 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.-
-
My invention relates to method and means of jointing and coupling and
Comprises various improvements hereinafter descubed.
The main object of my said invention is to provide a simple method and ready
means of jointing parts of boilers and coupling flange-joints generally so as to
save au amount of rivetting or bolting.
My invention primarily consists in Hauging all cucular joints in a boiler and
Coupling the flanges by means of a ring on strap-hereinafter called coupling.
My improved menus of coupling is so constincted than it can be used both for
external and internal flange-joints.
In order that my said invention may be clearly understood I will now refer to
the annexed drawings in which
-
Fig. 1, is a plan view of my coupling adapted for external Hange-joints
Fig. 2, a transverse section on line a. b. Fig. 1.
Fig. 3, is a plan view of my coupling adapted for internal flange-joints
Fig. 4, a transverse section on line c, d, Fig. 3.
Figs. 5 & 6 modifications of Fig. 1
Fig. 7 modification of Fig 3.
Fig. 8, shews a section of a boiler and exemplifies my method and means of
Jointing.
Fig. 9 is an enlarged section of a joint.
Like letters of reference indicate corresponding parts throughout the diawings.
A is a ring or strap of inverted U section in form and preferably made in two
pieces a', I connect the said pieces at one end by a finge-joint e, and at the
other end I provide lugs 1, "
I sometimes dispense with the hinge-joint e, and provide lugs f, f, both ends of
the pieces a', a², or I may make the ung or stiap in one piece or in more than
two pieces. In any case couple the said lugs by means of bolts g,g, and nuts h, h,
which on being screwed tight himly hold together the said pieces.
Bisang o stap of U section the reverse of A, but otherwise similarly
disposed, except that heads of bolts g', g', are somewhat embedded in lug or
lugs, and nuts A', ', fitted between the lugs & ƒ³, so as ou tightening the
nuts they exercise a thrust and open on expand the ring or stiap as indicated by
dotted lines, 1, Figs. 3 & 7.
In Jointing parts of a boiler according to my method-exemplified Fig. 8-1
flauge all circular joints or seams and between them place some suitable packing.
I then draw the flanges together and secure them by means of one of the above
described forms of my coupling ug or strap into which the flanges fit and me
firmly held ou tightening of the said nuts or substantially as herein before
described.
Moreover, it is obvious that my said means of coupling can be advantageously
used for securing cylinder covers, coupling steam, water, and oth. proes, and
coupling flange-joints generally

page_text: Having now particularly described and ascertamed the nature of my said inven-
tion and in what manner the same is to be performed I hereby declare that
what I claim is :-
1st. The improved method of jointing encular joints or seams in boilers by means
of a coupling ring or stiap substantially as her embefore described and exemplified
at Fig. 8 of the diawings.
2nd. The improved means or coupling consisting of the parts constructed and
arranged substantially as hereinbefore described for the purposes specified.
Dated this 20th day of December 1894.
W. H. MURCH,
Upper Terrace Road, Bournemouth, Agent for the Applicant.