Boiler Tubes, and for other Purposes.
Year: 1884

page_text: Boiler Tubes, and for other Purposes.
>
I THOMAS BEELEY of Hyde Junction Iron Works, Hyde Junction, Hyde, in
the County of Chester Boiler Maker, do hereby declare the nature of my invention
for IMPROVEMENTS IN MACHINES FOR DRILLING DRESSING AND TURNING BOILER
TUBES AND FOR OTHER: PURPOSES, to be as follows:-
This invention relates to certain improvements in a combined lathe and drilling
Machine for drilling dressing and turning the flanges of flue tubes of boilers for
raising steam and for other purposes. Hitherto the difficulty has been to set the
tube to be drilled or turned firmly into the lathe in such a manner as to enable
the workman to drill the holes with great precision and turn up the flanges in one
and the same machine.
Various devices have been resorted to for this purpose, such as claws on a chuck
plate and expanding mandrils, the latter filling the interior of the tube, but in
boilers of the class my improvement is arranged to operate upon chiefly, cross tubes
are almost invariably riveted or welded in across the tube, and the latter mode of
setting will not meet the requirements.
In my improved machine for drilling and turning of tubes; the tubo to be
drilled or turned is placed upon a V shaped table, and lifted into position by means
of a power or hand turned wheel, the latter, driving wheel gearing into pinion
secured to a shaft upon which is worm, gearing into worin wheels two of which
raise the supports of the V shaped table into position for setting up, which
I accomplish by means of conical face plates, supplemented by the insertion of a
pin secured to a bracket on one or both face plates into one of the holes in the
flange or flanges first drilled when the tube is set up in the lathe.
In this class of boiler or other tube, the welding leaves a projection at each end,
and if not cut off before the tube is flanged, this projection is still there and
hitherto has been chipped off by hand or put into an ordinary lathe, which process
involves the complete revolution for the operating upon of only a very short
portion of the circumference. One part of my improvement consists in the cutting.
of this projection, and this I accomplish by a reciprocating motion similar to that
of an ordinary shaping machine, with this difference, that the motion is made to
reciprocate to the curvature of the flanges or ring.

page_text: When this projection has been cut off, the flanges are turned true at each end
simultaneously by ordinary turning tools fitted to rests on my improved machine.
In order to drill the flanges with expedition and precision I attach to the
framework of the machine, four traversing heads capable of adjustment as to
distances apart to suit the varying length of the object to be operated upon. The
heads being fitted with drills all driven by gearing simultaneously, and to insure
the proper pitch of holes in the flanges to be drilled I secure to the main driving
wheel a circular plate having holes drilled to the corresponding pitches required
for various sized flanges, a pin is inserted into one of the holes in the circle
corresponding with the centres of the holes to be drilled on the flange, or other
well known forms of dividing may be adopted but the one before described is
preferable.
Dahim 20th are of October 1884

page_text: Boiler Tubes, and for other Purposes.
I, THOMAS BEELEY of Hyde Junction Ironworks, Hyde Junction, Hyde in
the County of Chester, Boiler inaker, do hereby declare the nature of my invention
for "IMPROVEMENTS IN MACHINES FOR DRILLING, DRESSING, AND TURNING BOILER
TUBES AND FOR OTHER PURPOSES" and in what manner the same is to bo
performed to be particularly described and ascertained in and by the following
statement
This invention relates to certain improvements in a combined lathe and drilling
machine for drilling and turning the flanges of flue tubes of boilers for raising steam
and for other purposes. Hitherto the difficulty has been to set the tube to be
drilled or turned firmly into the lathe in such a manner as to enable the workman
to drill the holes with great precision and turn up the flanges in one and the same
machine.
Various devices have been resorted to for this purpose, such as claws on a chuck
plate and expanding mandrils, the latter filling the interior of the tube, but in
boilers of the class my improvement is arranged to operate upon chiefly, cross tubes
are almost invariably riveted or welded in across the tube: thus the latter mode of
setting will not meet the requirements.
In my improved machine, the tube to be drilled or turned is placed upon
a V shaped table, and lifted into position by means of spur gearing in connection
with a worm and worm wheel, two of which raise the supports of the V shaped
table into position for setting up, which I accomplish by means of conical face
plates, one of which is secured to the spindle of the fast head, and the other to the
adjustable spindle of the sliding head.
In this class of boiler or other tube, the welding leaves a projection at each end,
and if not cut off before the tube is flanged, this projection is still there, and
hitherto has been chipped off by hand or put into an ordinary lathe which process
involves the complete revolution for the operating upon of only a very short
portion of the circuinference. One part of my improvement consists in the cutting
of this projection, and this I accomplish by giving to the tube a reciprocating
motion arranged to move slowly while cutting, and return quickly as is the case
with shaping and planing machines.
When this projection has been cut off, the flanges are turned truc at each end
simultaneously, by ordinary turning tools fitted to rests on traversing heads on my
improved machine.
In order to drill the flanges with expedition and precision, I attach to the
framework of the machine, four traversing heads capable of adjustment as to
distances apart to suit the varying length and diameter of the object to be operated
upon: the heads being fitted with drills all driven with gearing simultaneously,
and to insure the proper pitch of holes in the flanges to the corresponding pitches
required for various sized flanges, a pin is inserted into one of the holes in a
circular plate with holes corresponding with the centres of the holes to be drilled
on the flange, or other well known forms of dividing may be adopted but the one
before described is preferable,

page_text: I will now further describe my invention by aid of the accompanying drawings
in which Fig. 1. represents such portions of the apparatus as are required to explain
my invention. Fig. 2 is a plan of the same, and Fig. 3 a detail of the V shaped
table drawn to a larger scale. Figs. 4. 5. 6. and 7 are details of the traversing
boring and turning heads also drawn to a larger scale. Fig. 8 is a view of my
arrangement for giving a reciprocating motion to the apparatus, and Fig. 9 is a
plan of the same..
"
On to the spindle A, of the fast head of the apparatus, I secure the internal spur
toothed disc plate B, which is driven by cone C, and pinion P3 on the spindle of
the same.
The other head is capable of adjustment on the bed plate as to its
distance from the fast head, and is fitted with a revolving spindle D in which is an
internal spindle arranged somewhat in the same manner as the spindle of the loose
head of an ordinary turning lathe. On the spindles A and before named internal
spindle are secured the conical face plates E and E¹, between which the tube to be
operated upon is placed.
When placing a tube in the machine, it is rolled on the V shaped table F,
supported by the two screws F, F, that pass through the worm wheels G, G, into
the teeth of which gears the worm wheel G¹ gearing with which is the worm G³ on
shaft H. On turning the hand wheel H' the worm and wheels rotate, thus raising
the table and tube thereon to the height required, where it is secured between the
conical face plates E and E¹ by operating the hand wheel H² which causes the
internal spindle D and face plate to advance towards the fast head.
When the tube is secured between the conical face plates, the drilling of the
flanges simultaneously by the four traversing heads J is effected in the following
manner :-
Under the surface of the bed plate, I mount a shaft K, upon which are secured
the driving cone C¹, and bevel wheels K¹: the latter gearing with bevel wheels K³,
on short upright shafts L, near the top of each of which is secured bevel wheels L¹,
gearing with wheels L³, on the respective cross shafts M. The drill spindles N in
each traversing head J, are driven from the cross shafts M by bevel wheels N¹ and
short uprights, and the feed to the drills is also obtained from the said cross
shafts M as follows.
Near to each end of the cross shafts M, I secure a worm O which gears into
worm wheel O' and transmits motion by wheels O to the short shaft P, mounted
in suitable brackets on the side of the bottom portion of each sliding head J.
Upon each shaft P is a worm P' that gears into the worm wheel P² which is free to
revolve on the shaft Q, upon which is secured the plate wheel Q₁, and pinion
wheel Q, the latter gearing into a rack on the underside of upper slide forming
part of traversing head J. Upon each shaft Q I also place the lever R, in the boss
of which is cut a groove for the reception of the heads of bolts B¹, which when
nipped, secure the lever and plate wheel together, and to the arm of the said lever
I mount a catch C which when the end is placed in gear with the worm wheel P³
(see Fig. 7) causes the lever, plate wheel Q¹, and pinion Q³, to turn on the axis, and
the top slide of traversing head J and drill spindle N, to move towards the flange
of the tube T.
B
When the drill has bored through the tube flange, the same is automatically
withdrawn from the hole by dislodging, or throwing the catch Cs out of gear with
the worm wheel P2, which is accomplished by securing adjustable stops S to the
grooved circular plates S¹, so that when the plate wheel and lever have been moved
in the direction of the arrow by the worm wheel, until the catch C³ comes into
contact with the stop S, the catch is dislodged from the wheel, thereby liberating
the upper slide which is then drawn back by the weight W..
:
In order to insure the proper pitch of the holes in the flanges, I secure to the
internal spur toothed disc plate B, a circular plate B' having holes drilled to the
corresponding pitches required for various sized flanges. Into one of the holes in
the circular plate, pin P' is inserted, which locks the disc plate B. and tube T in
position, while the holes are being drilled, which when completed and the drill

page_text: withdrawn in the manner as before described, the pin P' is withdrawn: the disc
plate is then moved and the pin inserted into another hole, when the drills again
act upon the tube flange.
When the drilling is complete the belt is removed from driving cone C', and the
pin P withdrawn clear of the circular plate B³, motion is then given to the tube
by the driving cone C and pinion P³, the latter gearing with the internal teeth of
disc plate B, and in order to cut off the projections left by the welding at each end
of the tube, without having occasion to revolve the tube the complete revolution
for the operating upon of only a very short portion of the circumference, I cause
the tube to reciprocate while cutting off the projections: this I accomplish by
securing the studs S in the necessary positions on the disc plate, and attaching
the arm U on the end of a spindle supported by bracket F. Upon the spindle is
secured a bevel wheel U gearing with another secured on a shaft at the opposite
end of which is bevel wheel_U*, gearing with wheels Uª and U*, the former being
secured on upright spindle V which is connected in the ordinary manner with a
common belt guide, upon which are secured two belt forks. The counter shaft for
driving the turning portion of the apparatus is fitted with two sets of pullies, one
set being larger in diameter than the other, the larger pullies driving the apparatus
whilst cutting, and the smaller moving it in the opposite direction. By the arm U
extending between the studs S³ the latter revolving with the disc plate moves the
arm first in one direction and then in the other, by which the upright spindle V
moves the belt guard and belts on the pullies into positions, that the tube moves
slowly in the cutting direction, and returns quickly on the reversal of the arm and
upright spindle V.
The turning tools are secured on the top slide of traversing heads J in the
ordinary manner and when the projections are cut off, the arm U is removed, then
the tube will rotate as an ordinary turning lathe, the tools turning the flanges at
each end simultaneously.
In order to lock the apparatus so the belts driving the drilling and turning
portions cannot be operating at the same time I secure on shaft W¹, the disc W³, in
which is cut a slot for the reception of the lever arın Y when the reciprocating or
turning portion is not required: the arm being put in or removed out of the slot
by the rod Y¹
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 I make
no claim to the automatic feed and withdrawing motion shown and described in
connection with the drills, but what I claim is
First. The combination of the apparatus for the boring and turning of the flanges
of boiler or other tubes substantially in the manner as shewn and described.
Second. The securing of tubes between two conical face plates E and E¹ for the
purpose shewn and described.
•
D11
T... 100E