Improved Manufacture of Wrought Iron Girder Flanges.BIN MULTIPLE DRILLING AND PLANING MACHINE
Year: 1886

page_text: Improved Manufacture of Wrought Iron Girder Flanges.
We GEORGE SANT of Gypsey Cottage Cotton Lane Derby Ironworks Manager
and SAMUEL FARNSWORTH 160 Osmaston Road Derby Foundry Manager do hereby
declare the nature of our invention for A COMBINED MULTIPLE DRILLING AND
PLANING MACHINE to be as follows:-
We first construct a gantry of suitable width and length for the girder flanges
required to be manufactured-This gantry we make, in sections of convenient
length and bolt them together end to end its lower surface is permanently fixed to
the floor its upper surface is planed true throughout to receive four or more sets of
movable headstocks each carrying eight or more drills which are actuated by a
shaft running the whole length of the gantry and parallel with it by means, of
bevel gear with suitable clutch for throwing in and out of gear a short upright
shaft driving a horizontal multiple thread screw in the usual way for driving
multiple drilling machines each set of headstocks and drills are suitably arranged
to travel along the gantry drilling all the holes required in the girder flange as
they travel along. We also construct another set of headstocks. carrying two large
milling cutters of suitable size and proportions these also receiving motion from
the long shaft before mentioned these milling cutters are adjustable to the various
widths of flanges required and this headstock follows the headstocks carrying drills
afore mentioned and trims or. planes off the rough edges simultaneously on both
sides of the various plates of which the girder flange is constructed at the same
time as the headstocks carrying drills are drilling the holes required.

page_text: Combined Multiple Drilling and Planing Machine for the
Improved Manufacture of Wrought Iron Girder Flanges.
We GEORGE SANT of Gipsy Cottage, Cotton Lane, Derby, Ironworks Manager,
and SAMUEL FARNSWORTH, 160 Osmaston Road, Derby, Foundry Manager, do
hereby declare the nature of our invention for "A COMBINED MULTIPLE DRILLING
AND PLANING MACHINE FOR THE IMPROVED MANUFACTURE OF WROUHT IRON
GIRDER FLANGES" and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement, and
accompanying drawings in which Figure 1 sheet 1 is a front elevational view of
the right hand "drilling head" hereunder referred to; Figure 2, sheet 2, a side
elevational view of same, Figure 3 sheet 3 is a front elevational view of the
"planing head" hereunder referred to; and Figure 4 sheet 4 is a side elevation of
said "planing head.
In carrying out our Invention, we first construct a gantry A of suitable width
and length for the girder flanges required to be manufactured. This gantry we
make in sections of convenient lengths, and bolt them together end to end. Its
lower surface is permanently fixed to the floor. Its upper surface is planed true
throughout to receive four or more sets of movable headstocks B,-which for
convenience of working are made right and left handed, and each carrying eight
or more drills which are actuated by a shaft running the whole length of the
gantry and which shaft may be driven in any convenient manner, say, either by
belt, or, by a small engine attached to the end of the machine. D, represents
bevel gearing for driving the short upright shaft F, actuating a horizontal multiple
thread screw G, for working the drilling spindles, in the usual way for driving
drilling machines. E is the clutch-preferably a friction clutch-for stopping or
starting each set of drills.
Each set of headstocks and drills are suitably arranged to travel along the
gantry, drilling all the holes required in the girder flange as they travel along.
We also construct another set of headstocks carrying two large "milling cutters "K
of suitable size and proportions, these also receiving motion from the long shaft
before mentioned, these milling cutters K are adjustable transversely to the
various widths of flanges required. The headstock carrying the milling cutters K
follows the headstocks carrying drills aforementioned and by means of the
"planing headstocks" H (Figures 3 and 4) trims or planes off the rough edges
simultaneously on both sides of the various plates of which the girder flange is
constructed, at the same time as the headstocks carrying drills are drilling the
holes required.
By our improved method which we adopt of "down-feed " for the drills as herein
described and shown in the accompanying drawings, we are enabled to obtain
double the range of feed hitherto obtainable by the means usually employed.
Thus, on referring to the front elevation of the drilling headstocks shown at
Figure 1 it will be seen that the cross frame carrying the drill heads, (inside which
revolves the multiple thread screw G) is supported by two massive upright screws

page_text: which form the guides for the cross frame. These screws are actuated by the bevel
wheels shown at top; and, by means of a reversing clutch E, and trains of gear
driven by the worm and large worm-wheel, can be made to raise and lower the
entire cross frame carrying the drills; we therefere obtain the great range of
down-feed referred to above.
We employ a slow down feed used when the drills are cutting, a quick "down-
feed" to bring them down to the work; and, a quick up return feed to withdraw
them out of, or from the work when the holes are through.
Further, we may also make the drilling headstocks B self acting in their travel
along the gantry or bed backwards and forwards, by means of a pinion working
into the rack shown on the sides of the bed (Figures 1, 2, 3 and 4). Also by
means of the double milling cutters K in the planing headstock H above referred
to, we are enabled to plane up a flange consisting of a considerable number of
plates nearly the full length of the bed, and this, we believe cannot be accomplished
by any other means hitherto introduced.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
First In a combined multiple drilling and planing machine the arrangement
generally of the gantry and headstocks substantially as herein described and shewn
in the accompanying drawings.
Second-The improved method of
substantially as herein described and
(Figures 1 and 2.)
"
down feed" which we adopt for the drills
shewn in the accompanying drawings
Third The arrangement of double milling cutters in the planing headstocks
substantially as herein described and shewn in the accompanying drawings.
Fourth For the purpose hereinb.fore referred to, the combination of drilling.
heads followed by a planing head substantially as herein described and shewn in
the accompanying drawings..
Dated the Fourth day of November 1886.