IMPROVEMENTS IN PORTABLE APPARATUS FOR DRILLING AND BORING "
Year: 1883

page_text: LETTERS PATENT to Robert Kent Jones of Birkenhead in the County of
Chester Engineer for an Invention of " IMPROVEMENTS IN PORTABLE
APPARATUS FOR DRILLING AND BORING
"
PROVISIONAL SPECIFICATION left by the said Robert Kent Jones at the
Office of the Commissioners of Patents on the 1st May 1883.
ROBERT KENT JONES, of Birkenhead in the county of Chester, Engineer,
IMPROVEMENTS IN PORTABLE APPARATUS FOR DRILLING AND BORING
The main objects are to so construct apparatus, mainly for use in drilling and
boring metals that (a) it may be readily moved from place to place and secured in
the required position (b) it may be advantageously operated by hand power and
(c) it will neatly and efficiently perform its work.
Under the first part. Drilling apparatus or apparatus for cutting comparatively
small holes is constructed in the form of a ratchet brace, is operated by a lever, is
secured in position by a cramp or equivalent in any usual or convenient manner
and has the following novel features. The drill stock is made with or has secured
thereto a ratchet and toothed wheel, the operating lever is fitted and arranged to
work around the said drill stock and is provided with two pawls facing in opposite
directions. One of the said pawls takes into the ratchet above mentioned whilst
the other takes into a ratchet ring fitting around the toothed wheel on the drill
stock and provided with internal teeth. The internal teeth of the ratchet ring and
the teeth of the wheel on the drill stock are geared together by a small- toothed
pinion in the annular space between them: the said pinion is connected to a fulcrum
lever to retain it in the desired position. During one stroke of the operating lever
the drill stock is driven forward by direct action through the pawl acting on the
ratchet secured to the said drill stock: during the return stroke of the operating
lever the drill stock is again caused to move forward by means of the pawl acting
through the ratchet ring and internal pinion. The usual drills and feed mechanism
are employed
Under the second part. In apparatus for boring or cutting holes of large
diameter cutters are used instead of drills and the forward motion is given to the
cutter stock by means of a worm acting on a worm wheel carried by the frame and
surrounding the said cutter stock. The worm wheel and cutter stock are caused
to rotate together by means of a key and groove or equivalent means. The cutters
are secured to the stock in any usual manner and screw feed mechanism is
employed The apparatus is secured in the required position by means of bolts and
auts, cramps or like means.

page_text: -
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Kent Jones in the Great Seal Patent Office on the
1st November 1883.
ROBERT KENT JONES of Birkenhead in the County of Chester, Engineer,
"IMPROVEMENTS IN PORTABLE APPARATUS FOR DRILLING AND BORING."
The main objects are to so construct apparatus, mainly for use in drilling and
boring or cutting out annular pieces of metals, that (a) it may be readily moved
from place to place and secured in the required position (b) it may
be
advantageously operated by hand power and (c) it will neatly and efficiently
perform its work.
Under the first part. Drilling apparatus or apparatus for cutting comparatively
small holes is constructed in the form of a ratchet brace, is operated by a lever, is
secured in position by a cramp or equivalent in any usual or convenient manner,
and has the following novel features. The drill stock is made with or has secured
thereto a ratchet and toothed wheel, the operating lever is fitted and arranged to
work around the said drill stock and is provided with two pawls facing in opposite
directions. One of the said pawls takes into the ratchet above mentioned whilst
the other takes into a ratchet ring fitting around the toothed wheel on the drill
stock and provided with internal teeth. The internal teeth of the ratchet ring and
the teeth of the wheel on the drill stock are geared together by a small toothed
pinion in the annular space between them; the said pinion is connected to a
fulcrum lever to retain it in the desired position. Two or more of such pinions
may be used. I prefer two.
זי
During one stroke of the operating lever the drill stock is driven forward by
direct action through the pawl acting on the ratchet secured to the said drill stock,
during the return stroke of the operating lever the drill stock is again caused to
move forward by means of the pawl acting through the ratchet ring and internal
pinion. The usual drills and feed mechanism are employed.
Under the second part. In apparatus for boring or cutting holes of large
diameter cutters are used instead of drills and the forward motion is given to the
cutter stock by means of a worm acting on a worm wheel carried by the frame
and surrounding the said cutter stock. The worm wheel and cutter stock are
caused to rotate together by means of a key and groove or equivalent means. The
cutters are secured to the stock in any usual manner and screw feed mechanism is
employed. The apparatus is secured in the required position by means of bolts
and nuts, cramps or like means.
DESCRIPTION OF THE DRAWINGS.
Under the first part of my invention Fig 1 is a vertical section, and fig 2 a plan
partly in section of a ratchet brace or apparatus for cutting holes of small diameter
in metal. a is the drill stock formed at one end with the recess b to receive the
drill and at the other end with a screw c to carry the nut d for feeding forward
the drill stock e is a recessed ratchet wheel secured to the drill stock by a key f
and provided with internal teeth g. The ratchet wheel and pinion may be
screwed or otherwise secured to the drill stock, h ratchet wheel free to rotate around
the drill stock, formed with the pinion i and having its ratchet teeth disposed in
the opposite direction to those on e. ; ; intermediate wheels gearing into g and i

page_text: In use a stand of any usual construction is employed and the arm is secured
against the upright or any convenient portion, of the said stand. The lever m is
moved in the direction shown by the arrows say for the outstroke and by means
of the pawl. n moves the ratchet wheel e and with it the drill stock through the
key fin the direction shown by the arrow; on the return or instroke the pawl n
carries round with it the ratchet wheel h in the direction shown by the arrow.
The said ratchet wheel moves freely round the drill stock, actuates the intermediate
wheels j and through them the ratchet wheel e and drill stock a in the reverse
direction to that in which the ratchet wheel itself moves, that is to say the ratchet
wheel e and with it the drill stock is caused to move in the same direction during
the instroke as it did during the outstroke.
In braces constructed as herein setforth the speed of motion of the drill stock
is reduced on the instroke but the power required to drive it is less than during
the outstroke. One amongst other advantages derived from the use of the above
apparatus is that a hole may be drilled in much less time and with less expenditure
of power than with a single acting brace as the motion of the drill is nearly
continuous and as no retrograde pressure is brought to bear on it the cutting edges
may be made much more effective.
It will be obvious that under my invention any suitable feed mechanism may
be used, that the drill may be secured to the stock in any convenient manner that
one or more intermediate wheels may be used, that each pawl may be actuated by
a separate spring suitably arranged, and that annular drills or cutting tools may
be used.
Fig 3 is a perspective view, and fig 4 a vertical section of apparatus under the
second part of my invention for cutting or boring large holes more especially in
metal plates. 1 metal plate to be cut. 2 spindle or stem with collar 3 and screwed
end 4 below; and screw thread 5 and shoulder 6 above, 7 sleeve fitting around
the spindle 2. The said sleeve 7 is formed at at its upper end with a collar 8 to
which is secured a toothed wheel 9 having a sorew thread therein fitting into the
thread on the spindle 2 or the thread may be formed in the sleeve 7. The lower
end of the sleeve 7 is fitted with the screwed nuts 10, 11 sleeve fitting freely on
the sleeve 7 and held in position by the collars 8 and nuts 10. 12 worm wheel
fitting freely on the sleeve 11. 13 key secured to the sleeve 11 and free to slide
in a slot in the boss of the worm wheel 12. 14 slotted arms secured to or formed
on the lower end of the sleeve 11. 15 tool holders and tools, 16 frame securely
keyed to the upper end of the spindle 2 and resting on the shoulder 6. The said
frame is provided with clips 17 which fit under the rim of the wheel 12 and retain
it in position, 18 bearings for the worm or endless screw 19 which takes into the
worm wheel 12, 20 handles affixed to the spindle of the worm or endless screw 19.
21 spindle carried by bearings 22 on the frame 16 and provided with a loose
fitting toothed pinion 23 which takes into the toothed wheel 9. 24 key secured
to the spindle 23. 25 ratchet wheel secured to the spindle 21, 26 pawl on the
frame 16 taking into the teeth of the ratchet wheel 25.
The apparatus is used as follows:-The end 4 of the spindle 2 is screwed into a
hole made in the plate to be cut, so as to secure the apparatus in position. If
preferred the end of the spindle 2 may be passed through a hole in the plate and
be secured in position by a nut. Motion is then given to the handles 20 and,
through them to the endless screw 19, sleeve 11 arms 14 and cutting tools 15.
The sleeve 11 and tools are fed forward by giving motion to the pinion 23 which
causes the sleeve 7 to be screwed along the spindle 2 and carry with it the
sleeve 11.
Having now described and illustrated my said invention in such manner that
others will be enabled to carry my improvements into effect I claim :-
First. Double acting ratchet braces constructed with internal and annular
wheels
Second. The combination of the drill stock a ratchet wheels e. h. intermediate
wheels j. j. arm and lever or handle m

page_text: Third: The combination of the drill stock a ratchet wheel e. key f ratchet
wheel and pinion h, wheels studs k lever arm l, lever or handle m, pawls n n '
carrying spindle p and spring a substantially as set forth.
Fourth. Cutting Apparatus operated by means of a worm and worm wheel
when secured in position by means of a central carrying spindle substantially as
setforth
Fifth. Apparatus taken as a whole for cutting holes in metal constructed and
operating substantially as herein setforth.
Sixth. The combination of the central securing and carrying spindle 2 with
feeding sleeve 7 and cutter carrying sleeve 11 provided with driving gear
substantially as setforth.
In Witness Whereof I the said Robert Kent Jones have hereunto set my
hand and seal this thirtieth day of October in the year of Our Lord, one
thousand eight hundred and eighty three.
ROBERT KENT JONES (LS
J JOHNSON
Patent Office
-Witness.
4 Clayton Square
Liverpool
ROBERT KENT JONES (LS)