Improvements in Radial Drilling Machines
Year: 1899

page_text: Date of Application, 23rd Jan., 1899
Complete Specification Left, 23rd Oct., 1899-Accepted, 16th Dec., 1899
Improvements in Radial Drilling Machines,
I, ROBERT SCAIFE, of Swanfield, Colne, in the County of Lancaster, Machine
Maker, do hereby declare the nature of this invention to be as follows:-
This invention relates to radial drilling machines, and consists in an improved
construction of the same, with the object of simplifying the parts, and facilitating
the turn of the drill in any required position, and either in a vertical or horizontal
plane.
A vertical screw shaft or pillar which carries the drill frame, screws into a
hole in a flat bed plate or foot at the bottom. Capable of sliding on the vertical
shaft near this foot is another foot or jaw, formed with a boss, and above this jaw,
but engaging with the screw thread is a nut. The work is placed between the
top jaw and the foot, when the nut is tightened to grip it. A hole is formed in
the top jaw for the passage of the drill spindle.
The screw shaft or pillar carries a large boss, which is adjustable in any
position on the said shaft by a set screw, and which is formed with a face plate
or disc, against which is secured by a nut another disc or face plate forming part
of the drill spindle. By slackening the said nut, the drill frame can be moved
radially in any position.
The top portion of the drill frame, through which passes the drill spindle, is
also capable of swivelling round upon a collar on the drill frame, and which
may be set in any position, and then tightened by a set screw.
This portion carries a vertical bevel wheel, and driving shaft and handle as
usual, whilst the horizontal bevel wheel is attached to the drill spindle as usual.
The drill spindle is screw threaded, and raised and lowered in the drill frame
by a spiked wheel operated by hand.
1.ופ .:תני.
Jaf Tannow 1000
Improvements in Radial Drilling Machines.
I, ROBERT SCAIFE, of Swanfield, Colne, in the County of Lancaster, Machine
Maker, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to radial drilling machines, and consists in an improved
construction of the same, with the object of simplifying the parts and facilitating

page_text: the turn of the drill in any required position, and either in a vertical or horizontal
plane.
A vertical screw shaft or pillar which carries the drill frame screws into a
hole in a flat bed plate or foot at the bottom. Capable of sliding on the vertical
shaft near this foot is another foot or jaw formed with a boss, and above this jaw
but engaging with the screw thread is a nut. The work is placed between the
top jaw and the foot, when the nut is tightened to grip it. A hole is formed in
the top jaw for the passage of the drill spindle.
The screw shaft or pillar carries a large boss, which is adjustable in any
position on the said shaft by a set screw, and which is formed with a face plate
or disc, against which is secured by a nut another disc or face plate forming part
of the drill frame.
By slackening the said nut, the drill frame can be moved radially in any
position.
The top portion of the drill frame, through which passes the drill spindle, is
also capable of swivelling round upon a collar on the drill frame, and which
may be set in any position, and tightened by a set screw.
This portion carries a vertical bevel wheel and driving shaft and handle as
usual, whilst the horizontal bevel wheel is attached to the drill spindle as usual.
The drill spindle is screw threaded, and raised and lowered in the drill frame
by a spiked wheel operated by hand.
In a modification, instead of mounting the boss carrying the drill frame direct
upon the vertical pillar or spindle, I fix it to the vertical portion of a bent
shaft bent at right angles, the horizontal portion of the shaft being pushed through
a socket, and fixed thereto by a bolt, such socket being cast horizontally with a
boss, arranged to slide on the said vertical pillar or spindle, and likewise secured
in any position by a bolt. By this means, I can adjust the distance between the
drill spindle and the said pillar or spindle to any required degree to suit particular
grades of work, in which holes are required to be bored, a greater distance from
the edge, than could be possibly accomplished by the drill arranged in the ordinary
way.
My invention will be fully understood by reference to the accompanying draw-
ings, in which
Fig. 1 is an elevation of a drill frame arranged in accordance with my inven-
tion, and Fig. 2 is a similar view of a modification thereof as described, shewing
the arrangement for varying the distance between the supporting pillar and the
drill spindle respectively.
Referring to Fig. 1, A is the pillar or spindle, which is screw threaded at its
lower extremity, to screw into the foot B. Over this foot is a jaw C, formed
with a boss E, bored to slide upon pillar A. The work is placed between the two
jaws, and a nut F either formed with spikes as shewn, or with angular edges, is
tightened to cause the jaws to grip the work.
Arranged to slide in any position upon the spindle A for vertical adjustment
is the boss G, carrying the drill frame H. This boss G is secured in the desired
position by bolts or screws J. The boss G is formed with face plate or disc K,
against which fits another face plate K¹, cast in one piece with the drill frame H,
and the two are secured together by a bolt or screw L. This permits of the drill
frame and drill being moved in a vertical plane in any desired position, and
then firmly secured in that position.
The drill frame is formed in two portions, the portion H and the portion M.
The portion M is arranged to swivel upon the socket M¹ of the portion H by means
of the boss M2 bored to fit upon the socket, and secured thereupon in any position
by the screw T. This permits of the driving shaft P being moved in any position
in a horizontal plane.
The socket M is tapped to receive the screw threaded portion of the drill
spindle, whereby the drill may be raised or lowered by the spiked wheel N.
The drill is turned by the bevel gear wheels O and Oi, through the medium of

page_text: hand wheel or handle fixed to the shaft P. The bevel wheel O may be arranged
in any usual or suitable manner to allow the drill spindle to move upwards or
downwards through it, and yet be capable of driving the same.
I will now proceed to describe the modification of my invention illustrated in
Fig. 2, which is employed for varying the distance between the drill spindle,
and the pillar support to meet exigencies in the kind of work required to be
bored.
For this purpose, I mount the boss or socket G of the drill frame H upon the
vertical extremity of a shaft Q, bent at right angles, the horizontal extremity of
the bent shaft sliding in a socket R cast in one piece with the socket or boss R¹
arranged to slide on the pillar or standard A, the respective parts being secured
by bolts or screws. In this way the drill spindle may be adjusted to any suitable
distance from the pillar or standard A.
When no adjustment of the drill in this respect is required, the boss or socket G
may be mounted direct on the pillar or standard A, as previously described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The improved arrangement and construction of radial drilling machines,
substantially as described and illustrated in Fig. 1.
2. The combination, in a radial drilling machine, of the pillar A, screw threaded
to receive tapped nut F, arranged to cause jaws C and B to grip the work,
and having mounted upon it (the said pillar A) adjustable boss G, formed with
face plate K, adjustably fixed to face plate K¹ of the frame H, the latter formed in
two portions H and M respectively, adjustable with each other, the respective
parts being arranged substantially as and for the purpose described and illustrated.
3. In a radial drilling machine, the combination with the parts described and
shewn in Fig. 1 of a bent arm Q fitting into socket R of the boss R', adjustable
upon the standard or pillar A, and arranged as and for the purpose described and
illustrated.
4. The jaws C and B arranged to grip the work by being tightened against the
same by nut F, engaging with screw thread of pillar A, substantially as described
and illustrated.
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.