A NEW (OR IMPROVED) MACHINE FOR CUTTING AND FORMING THE HEADS ON THE STAYS FOR FIRE-BOXES AND BOILERS, AND FOR OTHER PURPOSES
Year: 1879

page_text: LETTERS PATENT to Ralph Peacock and Charles Holt, both of Gorton, in the
County of Lancaster, for the Invention of "A NEW (OR IMPROVED) MACHINE
FOR CUTTING AND FORMING THE HEADS ON THE STAYS FOR FIRE-BOXES
AND BOILERS, AND FOR OTHER PURPOSES."
Sealed the 12th August 1879, and dated the 13th May 1879.
PROVISIONAL SPECIFICATION left by the said Ralph Peacock and Charles
Holt at the Office of the Commissioners of Patents on the 13th May 1879.
RALPH PEACOCK and CHARLES HOLT, both of Gorton, in the County of Lancaster:
"A NEW (OR IMPROVED) MACHINE FOR CUTTING AND FORMING THE HEADS ON
THE STAYS FOR FIRE-BOXES AND BOILERS, AND FOR OTHER PURPOSES."
In performing our Invention we make use of two short spindles, each held in a
separate swivelling bracket with varying adjustments to suit different classes of
work, the brackets being placed at a convenient distance apart, so that one spindle
operates upon the end of the stay inside the boiler and the other spindle operates
upon the end of the stay outside the boiler or firebox. These brackets are con-
nected to slide bars which work in brackets fixed to the lower portion of a vertical
pillar suspended to and sliding on the arm of a crane, which arm is made to con-.
tain the driving gear for communicating motion to a shaft inside the vertical pillar,
which shaft transmits the motion to two other shafts to drive the spindles which
contain the cutters or dies for cutting off or forming the heads on the stays.
The slide bars are counterbalanced by weights connected to them by chains
running over pulleys near the top of the vertical pillar.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Ralph Peacock and Charles Holt in the Great Seal Patent Office
on the 13th November 1879.
RALPH PEACOCK and CHARLES Holt, both of Gorton, in the County of Lancaster.
"A NEW (OR IMPROVED) MACHINE FOR CUTTING AND FORMING THE HEADS ON
THE STAYS FOR FIRE-BOXES AND BOILERS, AND FOR OTHER PURPOSES."
The machine consists of two steel cups made to the shape of the stay or rivet
head or other purpose required; these cups are each fitted in separate spindles, and
are made to press, and at the same time revolve in opposite directions upon each
end of the stay or other article. The spindles are fitted in swivelling heads
adjustable by screws to any required angle, and each fitted with independant
driving gear and adjustable automatic feed motion for giving the pressure to the
cups. The swivelling heads are fitted to two independant vertical beams sliding
in brackets and counterbalanced to move easily, and raised and lowered by means
of screws. The brackets are suspended upon the end of a pillar, and are made to
move round the same by means of a worm and worm wheel. The upper end of
the pillar is formed into a crane carriage, and fitted with wheels for moving along
a crane jib. The crane, which is carried by brackets from a wall or other con-
venient position, radiates upon pivots fixed to brackets, thus enabling the machine
to be brought into any position of the work to be operated upon.
And in order that our Invention may be fully understood we will describe the
accompanying two Sheets of Drawings.
On Sheet 1, Fig. 1 is a side elevation of our machine, the dotted lines A shewing
a locomotive fire box in position; Fig. 2 is an end elevation, and Fig. 3 is a side
view of the driving gear; and on Sheet 2, Fig. 4 is an enlarged elevation of the
swivelling head and spindle; Fig. 5 is a plan of the same; Figs. 6 and 8 are full
sized elevations of the cups; and Fig. 7 is a plan of the cup. The peculiarities in
the section of this cup are firstly the prongs or projections for pressing against
the stay or rivet end or other object, and secondly the central projecting point
which forces the metal ontwards, and so tightening the stay in the plate; Fig. 8
shews the centre point of the cup below the depth of the stay head, thereby
forcing the metal outwards to a greater extent than by the cup shewn in Fig. 6.
In Figs. 1 and 2, a, a, is a swing crane placed in any convenient position, and
turning upon the pivots b, b, b, and fixed brackets c, c. The vertical shaft d, d,
is driven by means of bevel wheels e, e, and pulleys f, f, from the line shaft g.
The shaft h, h, running through the centre of the crane jib is driven by bevel
wheels i, i.
Running upon the crane jib is the vertical pillar j, j, the head of which forms the
crane carriage h, k, through which passes the shaft 7, 1, driven by the bevel
wheels m, m.
The guide brackets n, n, are suspended to and move round the
lower end of the pillar j, j, by means of the worm and worm wheel o, o, and chain
and chain pulley p, p. In the guide brackets slide two vertical beams u, counter-
balanced by weights ?, ?, attached by chains, and moving over pulleys, fixed to
the bracket 8, 8, and which moves on friction rollers round the upper flange t of
the vertical pillar. The vertical beams u, u, are raised or lowered by means of
the screws v, v. The vertical shafts w, w, are driven by gearing from the bottom
of the pillar shaft l, l. To the ends of the vertical beams u, u, are fitted two
swivel heads x, x, adjustable to any required angle by means of the screws y, y.
The spindles z, z, are driven by means of worms and worm wheels a¹, a¹, from
vertical shafts w and bevel wheels b¹, and can be worked together or separately as
may be desired by means of disengaging clutches and handles g¹, g¹. On the worm
wheels a, a, are fixed crank pins c¹, c¹, see Figs. 4 and 5, and giving motion by
means of levers and ratchet wheels d', d¹, to worms and worm wheels e¹, e¹, which
worm wheel e¹ is attached to the nut that works the screw f', which forces out

page_text: the end of the spindle z, thereby giving the required movement outwards to the
tool cup.
The head of the spindle can be fitted with cutter or saw for cutting off the ends
of the stays or other object to the required projection.
The Drawing shews the parts in the positions they occupy when the machinery
is ready to be started. When the parts are set in motion the attendant by turning
the handles g', see Fig. 1, causes the cutters to act upon the heads of the stays pro-
jecting from the fire box or other article. As soon as the heads of one stay are
finished the machinery is set to act on the next.
Having thus stated the nature of our Invention, and described the manner of
performing the same, we wish it to be understood that we do not limit ourselves
to any of the various parts of the machinery shewn and described, as the same
may be considerably varied or modified without departing from the peculiar
character thereof.
We claim the machine shewn and described for cutting and forming heads on
the stays for fireboxes and boilers or other articles, or any modification of machinery
for effecting the same purpose.
In witness whereof, we, the said Ralph Peacock and Charles Holt, have
hereunto set our hands and seals, this Eleventh day of November, One
thousand eight hundred and seventy nine.
RALPH PEACOCK. (L.S.)
CHARLES HOLT. (L.S.)