IMPROVEMENTS IN THE CONSTRUCTION OF RADIAL AND OTHER DRILLING MACHINES AND TOOLS
Year: 1872

page_text: LETTERS PATENT to George Lowry, of Bury Street Foundry and
Cross Street Works, Salford, County of Lancaster, Engineer,
for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF RADIAL
AND OTHER DRILLING MACHINES AND TOOLS."
Sealed the 17th December 1872, and dated the 20th June 1872.
PROVISIONAL SPECIFICATION left by the said George Lowry at the
Office of the Commissioners of Patents, with his Petition, on the
20th June 1872.
I, GEORGE LOWRY, of Bury Street Foundry and Cross Street Works,
Salford, County of Lancaster, Engineer, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF RADIAL
AND OTHER DRILLING MACHINES AND TOOLS," to be as follows:-
-
My improvements relate, firstly, in the general arrangement and
combination of parts of a radial drilling machine, and consist in attaching
the two cone pulley shafts to the upright standard of the radial arm.
The bottom cone shaft is driven by a pair of bevel wheels from a shaft
fixed centrally to the upright standard or pivot of radial arm.
Also the
raising and lowering of the upright standard by means of hydraulic or
other power, so that all varieties of work can be operated upon in the
machine.

page_text: Secondly. To the construction of a combined drilling slotting machine.
In the centre of the plunger carrying the slotting tool I arrange a shaft
to carry a drill; this shaft is made to rotate from the shaft which drives
the slotting plunger or head, which is disconnected when the drilling
arrangement is used; the slotting machine is otherwise of the ordinary
construction, with the exception of the frame or fixing of the machine,
the top part being made separate from the lower part carrying the table,
so that the plunger and its driving-gear-can be raised so as to allow
extra sized articles to be operated upon. It will. readily be understood
that when the drilling arrangement is used the ordinary table of the
slotting machine can be traversed to and fro, and thus drill oblong holes
or slots.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Lowry in the Great Seal Patent Office
on the 20th December 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
LOWRY, of Bury Street Foundry and Cross Street Works, Salford,
County of Lancaster, Engineer, send greeting.
WHEREAS♪ Her- most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of June, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said George Lowry, Her special licence that I,
the said George Lowry, my executors, administrators, and assigns, or
such others as I, the said George Lowry, 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, 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. THE CONSTRUCTION. OF
RADIAL AND OTHER DRILLING MACHINES AND TOOLS," upon the. condition
(amongst others) that I, the said George. Lowry, my executors or
administrators, by an instrument in writing under my, or their, or one
4

page_text: of their hands and 'seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the 'same was to lie
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and imnicdiately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said George Lowry, 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, and on reference to the accompanying Drawings,
that is to say :-
-
0
My improvements relate, firstly, in meral arrangement and com-
bination of parts of a radial drilling machine, and consist in attaching
the two cone pulley shafts to the upright standard of the radial arm.
The bottom cone shaft is driven by a pair of bevil wheels from a shaft
fixed centrally to the upright standard or pivot of radial arm; also the
raising and lowering the upright standard by means of hydraulic power
or like means, so that all varieties of work can be operated upon in
the machine.
Secondly. To thic construction of a combined drilling and slotting
machine. In the centre of the plunger carrying the slotting tool Í
arrange a shaft to carry a drill; this shaft is made to rotate from the
shaft which drives the slotting plunger or head which is disconnected
when the drilling arrangement is used. The slotting machine is otherwise
of the ordinary construction, with the exception of the frame or fixing
of the machine, the top part being made separate from the lower part oŕ
table, so that the plunger and its driving gear can be raised so as to
allow extra sized articles to be operated upon. Also, when the drilling
spindle is used, the table of the slotting machine can be traversed to and
fro, and thus oblong holes or slots can be cut.
In the arrangement of the gear for giving circular and linear motion
to the table one rocking shaft only is used.
And that the Invention may be fully understood, I will proceed to
describe the Drawings hereunto annexed and forming part of this
Specification.
Fig. 1 is a front elevation of a radial drilling machine constructed
according to my Invention.
Fig. 2 is an arrangement for raising and lowering the radial arm by
screw, or worm, and wheel; & Fig. 3, mode of securing radial arm of

page_text: '
the ordinary radial drilling machines by means of a circular flange
secured by bolts.
Fig. 4 is a sectional elevation of part of the upright standard arranged
for raising and lowering by hydraulic power.
Fig. 5 is a front elevation of the slotting machine constructed
according to my Invention.
And Fig. 6 is a sectional elevation of the plunger or slotting head with
the drilling spindle attached thereto.
In each of the above Figs. the same letters of reference indicate
like parts.
In Fig. 1, shewing elevation of drilling machine, the table Z carries
the upright or standard J which forms part of the radial arm Z', and it
can be made to turn upon the flange at the bottom by slackening the
bolts which secure it to the table; the standard J carries the two conc
or speed pulley shafts F and H, the outer ends of the shaft being sup-
ported by the fixings Jª and J², which are fixed to J.
A. is the driving pulley, and the rotary motion is transmitted to the
drill spindle K³ through the bevil wheels B and C, D and E to the first
cone spindle F, and thence by the strap G to the top cone, and through
the ordinary train of double or single gear to the spindle K, which gives
motion to the drill spindle K³ by means of the bevil wheels K' and K².
Fig. 2. a is the plunger, which is turned to fit a suitable provision in
the table and is raised or lowered by means of a screw 6 and worm and
wheel C, C; upon the top of this plunger is attached the radial arm,
which is thus raised or lowered with the plunger u.
: In Fig. 4 L is the lower part of a radial drill standard arranged for
raising and lowering by hydraulic power. M acts as the hydraulic
cylinder with a hydraulic packing leather top and bottom, and the standard
L forming the ram. The water to lift the standard is introduced through
the pipe M' and operates upon the shoulder of the standard or ram L.
f
In Fig. 5, representing the slotting machine, the frame N being loose
from the lower part O of the machine, so, that it can be packed up to
take in large articles. Q is the rod which transmits motion to the
rocking shaft R from which all the motions required for the table are
worked. is a double bevil with ratchet or spur in the centre, and can
be moved by hand to and fro on shaft R; the shaft gives circular
motion and linear motion; therefore by throwing the compound

page_text: wheel in gear with or the said motions are obtained accordingly
and cannot both be actuated at one and the same time. S is the driving
pulley, and T, T¹, the cones, and P the plunger or slide carrying the
slotting tool.
Fig. 6 shews the application of the drill spindle to the slotting machine,
X being the spindle, to which rotary motion is given by means of the
bevil wheels Y, Y', from the shaft Y. The Drawings are sufficiently
explanatory of the other parts.
Having described and ascertained the nature of my said Invention, and
the manner of carrying the same into practical effect, I would have it
understood that I do not bind myself to the precise details herein described
and shown in the accompanying Drawings, as the same may be departed
from. or modified without departing from the spirit or nature of my
Invention; but what I claim is,―
1stly. The general arrangement and combination of mechanical parts
as applied to a radial drilling machine, as herein-before described and
shewn in the accompanying Drawings, especially with regard to the
mode of carrying the speed cones and shaft.
2ndly. The raising and lowering the standard carrying the radial arm
in radial drilling machines by means of worm and wheel, hydraulic or
other like power, in the manner herein-before described. Also the mode
of securing the radial arm by means of flange and bolts.
3rdly. The general arrangement and combination of mechanical parts
as applied to a slotting machine, especially with regard to the moveable
head or frame N, and rocking shaft R, and the application of a drill
spindle, substantially in the manner herein-before described and shewn
in the accompanying Drawings.
In witness whereof, I, the said George Lowry, have hereunto set my
hand and seal, this Sixteenth day of December One thousand
eight hundred and seventy-two.
Witness,
Jos. WILLCOCK.
GEORGE LOWRY. (L.s.)