IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRILLING AND BORING METALS, AND ALSO FOR CUTTING KEY- WAYS AND COTTER-HOLES
Year: 1857

page_text: LETTERS PATENT to William Fothergill Batho and Eugene Moritz Bauer,
of Salford, near Manchester, in the County of Lancaster, Engineers and
Tool Makers, for the Invention of "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR DRILLING AND BORING METALS, AND ALSO FOR CUTTING KEY-
WAYS AND COTTER-HOLES."
Sealed the 16th July 1858, in pursuance of an Order of the Lord Chancellor,
and dated the 4th November 1857
PROVISIONAL SPECIFICATION left by the said William Fothergill Batho
and Eugene Moritz Bauer at the Office of the Commissioners of
Patents, with their Petition, on the 4th November 1857.
We, WILLIAM FOTHERGILL BATHO and EUGENE MORITZ BAUER, of Salford,
near Manchester, in the County of Lancaster, Engineers and Tool Makers,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR DRILLING AND BORING METALS, AND ALSO FOR
CUTTING KEY-WAYS AND COTTER-HOLES," to be as follows:-
We arrange a vertical drilling carriage on a cross slide, which in conjunction
with a self-acting feed and reciprocating motion enables us to admit objects of
large diameters to be chucked and bored with great facility, and large holes
or slots to be drilled to a great depth, and by a peculiar arrangement of the
said self-acting feed and reciprocating motions, the spindle being so near to
the main slide, and the carriage in the most favourable position to resist the

page_text: pressure of the drill, we give it much greater stability than has been hitherto
obtained.
?
These improvements will be clearly understood by reference to the accom-
panying outline Drawing and the letters of reference thereon, in which a
represents the foundation plate, upon which we place two or more uprights 6,
according as we wish to make a single or double machine; on the top of the
said uprights we bolt the cross slide c, on which the vertical drilling carriage d
traverses. By this arrangement the distance between the drilling spindle an
the slide c is so little that it insures great steadiness and prevents the enlarge-
ment of the ends of the slots, a serious defect of the ordinary machines. e is
an intermediate shaft carrying the bevil pinion f' and the spur wheel f², the
latter being driven by the pinion f³ driven by the shaft 9, in which there is a
groove to enable the pinion f to slide along. By means of these wheels we
have a compact arrangement for multiplying the power requisite to bore large
holes. The self-acting motions for boring and for cutting cotter-holes or
key-ways are derived from the back shaft h driven by the cone pulley shaft g;
on the said shaft h are the two cone pullies i and k and the single speed
pulley for narrow straps. The pulley i drives the shaft 1, which has a
groove from end to end to enable the worm m to slide along it, at the same
time when the reciprocating motion is out of gear it communicates the self-
acting feed motion to the spindle for drilling or boring through the shafts,
No. 1 and 2. By throwing the strap off the cone pulley i and putting it on
the cone pullies k and k¹ the reciprocating motion is put into gear, and by
dropping the catch or click o into the ratchet wheel on the end of the shaft l
the downward feed is given for cutting cotter-holes or key-ways. The inter-
mittent motion imparted to the lever p which carries the click o is obtained
from the cam n on the shaft q, on which is the eccentric spur wheel, half the
diameter of the elliptical wheel on the back of the driving disc or face plate r,
in the face of which is a slot carrying the crank pin which works into the
connecting rods, being attached at the other end to the screw t through a slot
or opening in the cross slide c. The screw t works into a nut let into the
carriage d, by means of which the carriage, and consequently the drill, can be
adjusted laterally. The table u slides vertically on the bracket u¹ by means
of the rack, pinion, worm, and worm wheel, and at right angles to the cross
slided by the screw. We fix bushes in the foundation plate to carry. .the
boring bars for boring large holes.

page_text: SPECIFICATION filed in pursuance of the conditions of the Letters Patent,
.
and of an Order of the Lord Chancellor, by the said William Fothergill
Batho and Eugene Moritz Bauer, in the Great Seal Patent Office on
the 3rd August 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
FOTHERGILL BATHO and EUGENE MORITZ BAUER, of Salford, near Manchester,
in the County of Lancaster, Engineers and Tool Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters:
Patent, bearing date the Fourth day of November, in the year of our Lord'
One thousand eight hundred and fifty-seven, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said William Fothergill Batho and Eugene Moritz Bauer, Her special licence
that we, the said William Fothergill Batho and Eugene Moritz Bauer, our
executors, administrators, and assigns, or such others as we, the said William'
Fothergill Batho and Eugene Moritz Bauer, our 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, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRILLING AND
BORING METALS, AND ALSO FOR CUTTING KEY-WAYS AND COTTER-HOLES," upon the
condition (amongst others) that we, the said William Fothergill Batho and
Eugene Moritz Bauer, by an instrument in writing under our hands and
seals, or under the hand and seal of one of us, should particularly describe.
and ascertain 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 on or before the Fourth day of August, One thousand eight
hundred and fifty-eight.
NOW KNOW YE, that we, the said William Fothergill Batho and Eugene
Moritz Bauer, do hereby declare the nature of our said Invention, and the
manner in which the same is to be performed, to be particularly described and
ascertained in and by the following statement (that is to say):-
--
We arrange one or more vertical drilling carriages on a cross slide fixed to
two or more upright supports attached to a strong foundation plate, for the
purposes of drilling, boring, and slotting large as well as small objects, which
by this arrangement can be chucked with great facility, and large holes or
slots may be drilled to a great depth. We also employ a convenient and
advantageous arrangement of the self-acting feed and reciprocating motions,

page_text: in which the spindle is placed as near as possible to the main slide, and the
carriage is supported in the most favorable position to resist the pressure
of the drill, by which means we give it much greater stability than has been
hitherto obtained.
The manner in which our said Invention is to be performed will be clearly
understood by reference to the accompanying three Sheets of Drawings and
the letters of reference thereon, in which Fig. 1, Sheet 1, is a front elevation,
partly in section, of our improved drilling, boring, and slotting machine
arranged for two vertical drilling carriages; Fig. 2, Sheet 2, is an end elevation
of the same; and Fig. 3, a cross section thereof; Fig. 4 is a back elevation
of that portion of our improvements which enables us to give the requisite
taper to cotter-holes; and Fig. 5, Sheet 3, is a plan of the complete machine.
a represents the foundation plate, upon which we place two or more uprights b,
according as we wish to make a single or double machine. To the top of
these uprights we secure the cross slide c, on which the vertical drilling
carriages d reciprocate by means of the elliptical and eccentric wheels e and f
by which means we are enabled to overcome in a great measure the irregularity
of the crank motion when converted into a lineal motion. When drilling a
key-way or cotter-hole we take advantage of the slight pause at each end to
put on the downward feed motion which is obtained from the cam g on the
shaft h; the said shaft carrying the worm wheel and eccentric wheel is driven
from the cone pulley shaft & through the back shaft b', which also drives the
shaft c¹ and gives the continuous downward feed for plain drilling or boring.
The drilling spindle i is driven from the cone pulley shaft d, in which there is
a groove to enable the pinion k to slide and transmit the motion through the
intermediate shaft l which carries the spur wheel m and the bevil pinion n
working into the bevil wheel o on the drilling spindle, by means of which
gearing we have a ready method of obtaining a multiply of power. The crank
or disc P is carried in a bearing attached to the upright b and close to the
back of the cross slide c. On the back of the crank shaft is attached the
chuck with two tappets, one moveable, by means of the screw r carrying
a ratchet, acted upon at each revolution of the crank by a pall stationary to
the upright, the other tappet being fixed; the said tappets act on the fork s
which oscillates on the eccentric wheel shaft h. Attached to the said fork is
the rack u sliding in the upright b into which the pinion v works, and transmits
through the shaft w, skew wheel x, and screw y a partial motion to the drilling
carriage d at each end of the throw of the crank p. As the moveable tappe
approaches the centre of the chuck at every revolution of the crank i
diminishes the length of the stroke, whilst the fixed tappet always imparts the

page_text: same; by these means we obtain the requisite taper when drilling cotter
holes. When we wish to drill parallel slots, we slide the pinion v out of gear
with the rack u, and disengage the ratchet or star wheel on the screw r.
The self-acting feed motion for drilling cotter-holes and slots is obtained
from the small pulley on the cone pulley shaft d³, over which a narrow strap
runs through an opening in the cross slide on the pulley d'. On the same
shaft is keyed the cone pulley e¹, over which runs another narrow strap on the
pulley f, driving the worm g', which drives the worm wheel h¹. On the same
shaft with the said worm wheel is the eccentric wheel f, the cam g, and the
forks; the eccentric wheel works into the elliptical wheel e cast on the back
of the disc or crank p. By these two wheels we obtain a nearly uniform
reciprocating motion, which is imparted to the carriage by means of a con-
necting rod attached to the crank pin in the disc p at one end, and at the
other to the screw y by the cross head , moving in a parallel slot in order to
guide it; the carriage d carries a nut ¹ in which the screw y works. During
the slight pause at each end of the throw of the crank p the downward feed is
given by means of the intermittent rocking motion imparted to the levers
m² and n² from the cam 9 by means of the lever o' and shaft p¹ supported in
the upright b. On the end of the shaft c³ the lever m¹ works loose, and has
a slot in its lower part, into which the stud 93, which is adjusted in a similar
slot in the lever n', works, thus communicating an intermittent motion, variable
at discretion by altering the position of the stud 92 in the slot of the lever n¹.
On the upper part of the lever m' is the click or catch r¹ working into the
spur wheel s¹, which runs loose on the shaft and turns the pinion t¹. On the
same shaft is keyed the wheel u¹, working into the pinion on the shaft c²,
which shaft has a key-way running the whole length between the uprights, to
enable the key of the skew wheel w¹ to slide and communicate the motion
to the drilling spindle i through the cross shaft y¹, and thence, by means of a
worm and worm wheel supplied with friction clutch, through the shaft z¹, on
which is the pinion a² which works into the rack and presses down the drilling
spindle i.
The continuous feed motion for plain drilling and boring is obtained by
taking the strap off the cone pullies and fand putting the strap on the
cone pullies 63 and c³. The foundation plate is planed and has slots for
bolting down large objects, and is provided with bushes d³ for steadying the
boring bars when boring large holes.
The tables for holding the objects may either be of the telescopic form, as
shewn in Figs. 1 and 3, by means of which large work may be supported at
any requisite height, the resistance to the strain and weight being direct,

page_text: or two angle brackets sliding against each other, as in Figs. 1 and 2, may be
employed, which admit of great range of adjustment for small work; in both
cases a transverse slide is used to facilitate adjustment.
Having thus fully described the nature of our said Invention, and the
manner in which the same is to be performed, we desire it to be distinctly
understood that we do not confine ourselves to the precise details herein set
forth, as such may be varied or modified without departing from the principle
thereof; but we claim as our Invention, which to the best of our knowledge
and belief has not been hitherto used within the realm, the combination
and arrangement of parts forming, as herein described, and shewn in the
accompanying three Sheets of Drawings, our improvements in machinery and
apparatus for drilling and boring metals, and also for cutting key-ways and
cotter-holes.
In witness whereof, we, the said William Fothergill Batho and Eugene
Moritz Bauer, have hereunto set our hands and seals, this Thirty-first
day of July, in the year of our Lord One thousand eight hundred
and fifty-eight.
Signed, sealed, and delivered, by the
within-named William Fothergill
Batho and Eugene Moritz Bauer
in the presence of
E. J. HUGHES,
(L.S.)
W. F. BATHO.
EUGENE M. BAUER. (L.s.)
Patent Agent,
Manchester.