Improvements in Machines for Flanging Metal Tubes for Boilers and the like.
Year: 1890

page_text: Date of Application, 22nd Oct., 1890-Accepted, 20th ec.. 1890
COMPLETE SPECIFICATION.
Improvements in Machines for Flanging Metal Tubes for Boilers
and the like.
I, EDWARD HEATON, of The Star Boiler Works, Holt Town, Manchester, in the
County of Lancaster, Boiler Maker, 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 improvements in machines for flanging metal tubes for
boilers and the like and the chief object of my improvements is to produce straight
and smooth flanges which do not require subsequent hammering to stretch them out
and make them level.
I attain this object by the improved machine illustrated on the accompanying three
sheets of drawings in which
Figure 1 is a front elevation. Fig. 2 a side elevation and Fig. 3 a plan and Fig. 4
is a detail view of the flanging mechanism with the parts in the same relative positions
as shown in Fig. 1.
In these views-a designates the bedplate of the machine and the revolving face
plate to which the tube c to be flanged is secured by means of the sliding jaws d, the
face plate 6 being mounted and rotated as usual by means of the driven shaft e and
bevel gears el or in other convenient manner.
The upright standard fis bolted to the bedplate and is formed with a vertical
slot and slideways in or on which is fitted the carriage g which supports the
flanging apparatus. The carriage g is arranged so that it can be raised and lowered
in the usual way to regulate the depth of the flange by means of a vertical screw h
which-has its bearing in the upper part of the standard f and a nut which is fitted in
a slot or slide in the carriage g. In this way the carriage y rests upon the nut and
can be raised or lowered as required by turning the screw which is actuated by
means of the bevel gears and the hand wheel j.
h¹
In order to enable the carriage g to be first raised and then lowered quickly and
independently of the screw h and nut, I fit the latter in a slot or slide in the carriage g
as above described and connect the short arm of a weighted pivoted lever k by a
chain to the carriage g so that by operating the lever & the carriage g can be lifted
off the nut which normally supports it and can then be lowered again quite inde-
pendently of the screw h.
Near the centre of the carriage g is mounted on an adjustable stud m a flanging
block or roller n which beds upon a plate or washer o beneath which are four setting
screws p whereby the plate o and consequently the block or roller n can be set higher
or lower as required.
To the sides of the carriage g is hinged at g'a swinging frame y consisting of two
quadrants q connected together by a crosshead q" in which is fitted and secured a
stud for the flanging roller s which is so mounted that it can be adjusted relatively
to the flanging block by means of the four screws t. The swinging frame with
the roller s is turned about its centre of motion the pivots g¹ by means of two worms u
which gear into the qnadrants q; on the shaft of each worm u is fixed a pinion u
which pinions are geared together by a carrier wheel and one of the pinions u¹ is
driven by a pinior. w fixed on the shaft of a handwheel w consequently when the
handwheel w is turned in the proper direction both worms are turned simultaneously
and by the quadrant. the swinging frame is actuated to cause the flanging roller s
o turn the edge of the tube cover upon the flanging block or roller n whereby a true
nd level flange is formed.

page_text: 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 1
claim is :-
1. Mounting one flanging roller adjustably in a crosshead the ends of which are
supported by two quadrants hinged to the carriage which supports the other flanging
roller or block, said quadrants being actuated by two worms which are geared together
and are capable of bing turned simultaneously to move the quadrants on their pivots
or hinges and the first named flanging roller through the arc of a circle and bring
the first roller into a position parallel with and above the other flanging roller or
block.
2. Mounting the carriage, which supports the flanging apparatus, so that it can be
quickly raised and lowered again independently of the ordinary adjusting mechanism
substantially as described.
3. The combination with the flanging block or roller n, of the plate or washer o and
the setting screws p substantially as and for the purposes specified.
4. The general combination and arrangement of parts embodying my improvements
in flanging machines substantially as herein described and as shown.
Dated this 21st day of October 1890
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.