IMPROVEMENTS IN THE CONSTRUCTION OF MULTIPLE DRILLING MACHINES
Year: 1868

page_text: LETTERS PATENT to Edward Hutchinson, of the Firm of Pease,
Hutchinson, and Company, of Darlington, in the County of Durham,
Iron Manufacturers, for the Invention of "IMPROVEMENTS IN THE
PROVISIONAL SPECIFICATION left by the said Edward Hutchinson
at the Office of the Commissioners of Patents, with his Petition,
on the 25th February 1868.
I, EDWARD HUTOHINSON, of the Firm of Pease, Hutchinson, and
Company, of Darlington, in the County of Durham, Iron Manu-
facturers, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF MULTIPLE DRILLING MACHINES," to
be as follows:-
My Invention consists in so constructing multiple drilling machines
with a double traversing motion that (a) the frame which carries the
drills is capable of being traversed or moved from front to back without
stopping the machine, thus allowing the drilling of holes to be per-
formed in different portions of the same article without moving it, or

page_text: the drilling of holes in the said article during a continuous movement
of it through or past the machine; and (b) each drill can be moved
laterally without interfering with the others or stopping the machine;
holes can thereby be drilled at regular or irregular distances apart.
My invention consists also (c) in the employment of disengaging
clutches for stopping and starting each drill in machines provided with
the said double traversing motion; and (d) in providing feed motion of
a novel construction for each drill spindle separately, which said fced
motion is applicable to drilling machines generally.
On a transverse shaft supported in or by the framework of the
machine, to which shaft I give rotary motion by a steam engine coupled
thereto, or by power applied in any convenient manner I place a bevel
pinion. This pinion, which is free to slide on the shaft, gears with
another bevel pinion secured on a longitudinal shaft supported by the
traversing frame carrying the drill spindles. The traversing frame is
carried on and moved from front to back by two transverse screws, one
placed at each side, resting in fixed bearings secured to the frame.
The said longitudinal shaft, which is fitted with a feather extending its
full length, passes through a number of bevel pinions corresponding to
the number of drill spindles. These pinions are not keyed to the said
longitudinal shaft, but slide loosely on it; they are caried by swan-neck
pieces cast on each drill carriage, and communicate motion to each drill
spindle by gearing with other pinions placed loosely one on each drill
spindle. Clutches sliding on the drill spindles and worked by levers
are provided, so that the drills can be put in motion and stopped.
independantly of each other. The drill carriages are made to slide on
the traversing frame by means of a rack and pinion motion, so that the
pitch or distance apart of the drills can be readily varied by turning a
spindle fitted to each drill carriage. A longitudinal feed shaft made to
rotate slowly by worm and wheel or other gearing is provided. This shaft
forms at once a fulcrum on which each 'drill can be raised or lowered by
screw handles and levers, and means of communicating self-acting feed
motion to the drill spindle. The instant the said screw handle is
tightened or caused to press upon the said shaft its spindle is rendered
self-feeding.
Multiple drilling machines constructed as above described have been
specially designed by me for drilling the rivet holes in wrought-iron
girders and other similar work, particularly where the holes are required

page_text: to be drilled through a number of plates, but it will be obvious they are
also suitable for general work. Such machines can be advantageously
used in combination with the continuous planing machines for which
Provisional Protection is applied simultaneously with this.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Hutchinson in the Great Seal Patent Office
on the 25th August 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
HUTCHINSON, of the Firm of Pease, Hutchinson, and Company, of
Darlington, in, the County of Durham, Iron Manufacturers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of February, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Edward Hutchinson, Her special license
that I, the said Edward Hutchinson, my executors, administrators, and
assigns, or such others as I, the said Edward Hutchinson, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time, and at all times thereafter during the term
therein expressed, should and lawfully might make, usc, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN THE CONSTRUCTION OF MULTIPLE DRILLING MACHINES," upon the condition
(amongst others) that I, the said Edward Hutchinson, my executors
or administrators, by an instrument in writing under my, or their,
or one of their hands and seals, should particularly describe and ascer-
tain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Hutchinson, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, reference being had to the

page_text: accompanying two Sheets of Drawings, and to the figures and letters
thercon, that is to say :-
My Invention consists in so constructing multiple drilling machines
with a double traversing motion that (a) the frame which carrys the
drills is capable of being traversed or moved from front to back without
stopping the machine, thus allowing the drilling of holes to be per-
formed in different portions of the same article without moving it, or
the drilling of holes in the said article during a continuous movement
of it through or past the machine; and (b) each drill can be moved
laterally without interfering with the others or stopping the machine;
holes can thereby be drilled at regular or irregular distances apart.
My Invention consists also (c) in the employment of disengaging
clutches for stopping and starting each drill in machines provided with
the said double traversing motion; and (d) in providing feed motion of
à novel construction for each drill spindle separately, which said feed
motion is applicable to drilling machines generally.
On a transverse shaft supported in or by the framework of the
machine, to which shaft I give rotary motion by a steam engine coupled
thereto, or by power applied in any convenient manner, I place a bevel
pinion. This pinion, which is free to slide on the shaft, gears with
another bevel pinion secured on a longitudinal shaft supported by the
traversing frame carrying the drill spindles. The traversing frame is
carried on and moved from front to back by two transverse screws,
one placed at each side, resting in fixed bearings secured to the frame.
The said longitudinal shaft, which is fitted with a feather extending its
full length, passes through a number of bevel pinions corresponding to
the number of drill spindles. These pinions are not keyed to the said
longitudinal shaft, but slide loosely on it; they are carried by swan-neck
pieces cast on each drill carriage, and communicate motion to each
drill spindle by gearing with other pinions placed loosely one on each
drill spindle. Clutches sliding on the drill spindles and worked by
levors are provided, so that the drills can be put in motion and stopped
independantly of each other. The drill carriages are made to slide on
the traversing frame by means of a rack and pinion motion, so that
the pitch or distance apart of the drills can be readily varied by turning
a spindle fitted to each drill carriage. A longitudinal feed shaft made
to rotate slowly by worm and wheel or other gearing is provided. This
shaft forms at once a fulcrum on which each drill can be raised or

page_text: lowered by screw handles and levers, and means of communicating self-
acting feed motion to the drill spindle. The instant the said scrow
handle is tightened or caused to press upon the said shaft its spindle is
rendered self-feeding.
Multiple drilling machines, constructed as above described, have
been specially designed by me for drilling the rivet holes in wrought-
iron girders and other similar work, particularly where the holes arc
required to be drilled through a number of plates, but it will be
obvious they are also suitable for general work. Such machines can
be advantageously used in combination with the continuous planing
machines for which Letters Patent were granted to me bearing date
the 25th February, A.D. 1868, No. 623.
'$
On the two Sheets of Drawings appended hereto the details of a
multiple drilling machine constructed according to my Invention are
fully illustrated.
:
Fig. 1 is a longitudinal elevation; Figs. 2 and 3, end views looking
on parts of Fig. 1 in the directions indicated by the arrows; Fig. 4, a
plan; Fig. 5, a transverse section; Figs. 6 and 7, transverse sections
respectively at A, B, and C, D, and Figs. 8, 9, 10, and 11, detail views
drawn to a larger scale. In all these views like letters and figures
denote the same parts: I would have it understood that all the views
are not strictly representations of the machine as mentioned, inasmuch
as in some certain parts are cut through, and in others portions are
omitted, the object being to facilitate reference.
A is a shaft put into motion by the small steam engine B attached to
the machine if desired, or operated by any other convenient power; a is
a fly wheel on A; C, a bevel pinion sliding on and driven by A, and
geared into the bevel wheel D; E, shaft to which motion is com-
municated by means of the bevel wheel D; F, bevel pinions carried by
swan necks cast on each drill carriage G. These bevel pinions F give
motion to cach drill spindle H, they are not keyed to the shaft E, but
slide loosely upon it. J, drill frame upon which the drill carriages G
are made to slide by means of a rack and pinion motion K, L, so that
the pitch or distance apart of the drills can be readily varied by turning
the spindles M, the keys N being employed for that purpose. Insted
of the rack and pinion motion in machines constructed according to my
Invention a screw and sliding nuts or other mechanical equivalent
could be employed. o, clutches moveable on the drill spindles H;

page_text: P, handles supported on p for engaging and disengaging the clutches o,
so as to allow of each drill being put in motion or stopped independantly.
Q, pinions turning loosely on the drill spindles H when the clutches o
are disengaged; R, slides on which the whole drill frame, composed of
the parts above referred to, is moved backwards and forwards by means
of the transverse screws 8 and handles T; U, shaft passing through
the drill carriages G,.and serving as a fulcrum on which each drill
spindle H and its drill can be raised and lowered by the screw
handles V and levers ¹; these parts, videlicet, U, V, and u³, with the
parts hereafter described, serve also as means for communicating self-
acting feed motion. The said shaft U is caused to rotate at a slow
speed by the double worm and worm.wheel W, X, Y, Z, and it thereby
communicates a slow feed motion to each drill, when the lever wo' is
tightened upon it by means of the screw handle. V. A¹, pillars and ties
supporting and steadying the machine; B¹ represent a number of flat
plates to be drilled, these are shewn resting on bearing rollers C¹.
Instead of these rollers C₁ the clamp carriers claimed by me in
the Specification of Patent, No. 623, dated 25 February 1868, could
be used.
It will be obvious that although I have represented the drills on
the Drawings placed at equal distances apart they can be moved by the
mechanism herein-before described, so as to drill holes at irregular
distances from each other, and I would have it understood that this is
often of considerable importance when acting on a number of plates
such as are shewn to be used in the manufacture of girders, and I
would also have it understood that the arrangement described and
shewn by which the whole of the drills are free to slide laterally both
when the drills are set at regular and irregular distances apart is
beneficial when the plates or article to be drilled travel continuously in
one direction, as is the case when such plates or article are being fed to
or delivered from the continuous planing machine claimed by me in the
Specification of the Patent, No. 623, of the year 1868, herein-before
referred to. More than one line or row of drills can be used. In
instances where the plates or article to be drilled are or is of considerable
thickness, or the holes numerous, and the drilling could not be effected
in the same time as the planing by my planing machinery herein-
before mentioned, then my said drilling machine could be mounted on
wheels and rendered portable on rails or otherwise; indeed for ordinary
uses it is convenient to mount each machine on wheels.

page_text: Having now described the nature of my said Invention, and par-
ticularized the same, I desire to state that what I claim is,―
First. The combination and arrangement of mechanism, substantially
as herein described and shewn on the Drawings, for moving each drill
independantly in a lateral direction.
Second. The combination and arrangement of mechanism, sub-
stantially as herein described and shown on the Drawings, for giving
feed to each drill separately.
Third. The employment of clutches o and loose pinions Q arranged
substantially as described and shewn on the Drawings in combination
with the sliding pinions F to give motion to and disengage the drill
spindles H.
Fourth. The particular arrangement of parts herein set forth and
shown on the Drawings for travelling drill spindles operated as
described backwards and forwards.
Fifth. The combination and arrangement of the whole of the parts
herein described and shewn on the Drawings, constituting a complete
multiple drilling machine.
And, sixth. Multipe drilling machines with any or all of the
improvements above claimed, to act simultaneously on the same plates
or article with my Patent continuous planing machine, herein-before
referred to.
In witness whereof, I, the said Edward Hutchinson, have hereunto
set my hand and seal, this 22nd day of August, in the year of
our Lord One thousand eight hundred and sixty-eight.