IMPROVEMENTS IN MACHINERY FOR DRILLING AND RIMMELLING
Year: 1879

page_text: LETTERS PATENT to Alexander Harvey, junior, and Charles Randolph Harvey,
of the Firm of G. and A. Harvey, of Glasgow, in the County of Lanark, North
Britain, Engineers, for the Invention of "IMPROVEMENTS IN MACHINERY FOR
DRILLING AND RIMMELLING."
PROVISIONAL SPECIFICATION left by the said Alexander Harvey and
Charles Randolph Havey at the Office of the Commissioners of Patents on the
24th February 1879.
ALEXANDER HARVEY, junior, and CHARLES RANDOLPH HARVEY, of the Firm of
G. and A. Harvey, of Glasgow, in the County of Lanark, North Britain, Engineers.
"IMPROVEMENTS IN MACHINERY FOR DRILLING AND RIMMELLING."
This Invention relates to improved machinery designed more especially for drilling
and rimmelling rivet holes in cylindrical shells such as those of steam boilers, but
which is also applicable for other similar work.
The improved machinery comprises a central horizontal table on which the cylin-
drical shell or piece to be operated on is fixed in a position coucentric with the
vertical axis of the table, together with one, two, or more drilling frames having
the drilling spindle or spindles directed horizontal to the same vertical axis. The
central table can be turned by means of a pinion gearing with a ring of teeth formed
or fixed on its under side; and the drilling frame or frames can also be moved
round the central vertical axis; there being thus two means of moving round the
axis, which gives great facility and convenience in practical working.
Each drilling frame is fitted on horizontal guides on a radial carriage which is
fitted with wheels running on fixed inner and outer concentric rails, and which is
also formed with an arm extending to the centre, and there centered on a fixed boss.
Drilling gear with accessory feeding and adjusting details of any suitable known
kind is provided on each drilling frame, and is driven by means of a horizontal
shaft carried by the radial carriage, and having on its inner end a bevil wheel in
gear with a bevil wheel on a short vertical shaft passing through the central boss.
This central vertical shaft is itself driven by bevil wheels from a horizontal shaft
arranged beneath the rails and driven in any convenient way. Each drilling frame
is noved circularly when required by means of a pinion gearing with teeth formed

page_text: on or fixed to the outer rails, the pinion being on a shaft carried by the carriage,
and geared by bevil wheels to a vertical shaft carried by the frame, and movable by
a hand wheel and a worm and wormwheel.
In one convenient modification of the arrangement there are three drilling frames,
with provision for moving each of them circularly to the extent of about a sixth of
the circle. These frames may be made to operate at the same time on a boiler
shell, and be moved quite independently of each other until the three portions of
one-sixth of a circle each are completed, after which the central table can be turned
to bring the remaining three portions of the shell into position for being
operated on.
SPECIFICATION in pursuance of the conditions of the Letters, Patent filed
by the said Alexander Harvey and Charles Randolph Harvey in the Great
Seal Patent Office on the 22nd August 1879.
ALEXANDER HARVEY, junior, and CHARLES RANDOLPH HARVEY, of the Firm of
G. and A. Harvey, of Glasgow, in the County of Lanark, North Britain, Engineers.
IMPROVEMENTS IN MACHINERY FOR DRILLING AND RIMMELLING."
This Invention relates to improved machinery designed more especially for
drilling and rimmelling rivet holes in cylindrical shells, such as those of steam boilers,
but which is also applicable for other similar work.
Our improved machinery comprises a central horizontal table on which the cylin-
drical shell or piece to be operated on is fixed in a position concentric with the
vertical axis of the table, together with one, two, or more drilling frames having
the drilling spindle or spindles directed horizontally to the same vertical axis. The
central table can be turned and the drilling frame or frames can also be moved
round the central vertical axis, there being thus two means of moving round the
axis, which gives great facility and convenience in practical working.
Each drilling frame is fitted on horizontal guides on a radial carriage which is
movable on fixed inner and outer concentric rails, and which is also formed with an
arm extending to the centre, and there centered on a fixed boss. Drilling gear with
accessory feeding and adjusting details of any suitable known kind is provided on
each drilling frame, and is driven by means of a horizontal shaft carried by the
radial carriage, and driven at the centre.
In one convenient modification of our improved arrangement .there are three
drilling frames, with provision for moving each of them circularly to the extent of
about a sixth of the circle. These three frames may be made to operate at the same
time on a boiler shell, and be moved quite independently of each other until the
three portions of one-sixth of a circle each are completed; after which the central
table can be turned to bring the remaining three portions of the shell into position
for being operated on.
And in order that our said Invention, and the manner of performing the same, may
be properly understood, we hereunto append two Sheets of explanatory Drawings,

page_text: to be hereinafter referred to, and representing a modification of our improved
drilling and rinmelling machinery. In these Drawings the same reference numerals
are used to mark the same or like parts wherever they are repeated.
Figure 1 on Sheet 1 of the accompanying Drawings is a plan, and Figure 2 on
Sheet 2 is a sectional elevation of the machine. A portion of a cylindrical boiler
shell 4 is represented as in position for being operated upon, being fixed concen-
trically down upon a circular horizontal table 5, which rests on three conical
rollers 6 (indicated by dotted lines in Figure 1), and is centered on a vertical pin 7,
fixed in a plate 8, forming part of the fixed framing. The supporting rollers 6 are
carried by brackets forming part of a casting 9, fixed below the table 5, and formed
with a bearing for a short vertical shaft 10, which is in the same axial line as the
table centre pin 7, and which is geared by bevil wheels 11 to a horizontal first-
motion shaft 12, having on it pulleys 13 for a driving-belt.
- In the machine delineated provision is made for three drilling frames, each of
which is upon a radial carriage 14, resting by wheels 15, 16, on two rails 17, 18,
forming parts of circles concentric with the table 5, and each carriage 14 is kept
accurately in position by means of a bracket 19 formed on it, and mado with an
eye which is centered on the boss of the bearing of the central vertical shaft 10 (or,
as in the case of one of the three carriages, on the boss of the pin 7 above). Ench
carriage 14 carries a horizontal radial shaft 20, which is driven by means of a bevil
wheel on its inner end in gear with a bevil wheel 21 on the central vertical
shaft 10; and each carriage 14 is formed with horizontal guides parallel to its
shaft 20, for the support and radial adjustment of the vertical frame or standard 22
of the drilling frame. The standard 22 is adjusted on the guides on its carriage 14
by a screw spindle 23 fitted with a capstan head 24 at its outer end.
The drilling gear is fitted on a saddle or plate 25 which is fitted to slide on
vertical guides formed for it on the standard 22, and it is counterbalanced by means
of a chain 26 passing over a pulley 27 at the top of the standard to a weight 28 at
the other side of the standard. A vertical rack 29 is formed or fixed on the
standard 22, and a spurwheel in gear with it is carried by the saddle 25, and can
be turned for raising or lowering the saddle by means of a worn on a spindle
having a handwheel 30 on its outer end.
The drill spindle 31, and parts immediately connected with it, may be arranged
in any convenient way, but as shown in the Drawings it is carried in two bearings
formed for it on the saddle 25, and between these bearings has on it a spurwheel 32,
which drives it by means of the usual key and groove, and is driven by a pinion 33
on an upper shaft 34. This pinion shaft 34 receives its motion by bevil wheels 35
from a vertical shaft 36, which is driven by means of bevil wheels at its lower end
from the radial shaft 20, the driving bevil wheel in each case being movable along
its shaft. The drill spindle is fed forwards by means of a belt 37, which transmits
motion from a pulley 38 on the vertical shaft 36 to a pulley 29 on a vertical shaft,
which by a worm and worm wheel drives a horizontal shaft 40, having a spur-
wheel 41 on its outer end. Figure 3 is an end elevation of the saddle 25, and
shows in dotted circles some of the feed gear, the wheel 41 gearing with a wheel 42,
which is on a stud, and which drives wheels 43 on two horizontal screw spindles.
These screw spindles act on a crosshead which is connected to the drill spindle 31
by a swivelling coupling, these parts being covered by a part of the saddle 25. The
shaft 40 has on its inner end a bevil wheel gearing with a bevil wheel on a short
horizontal spindle having on it a handwheel 44 for moving the feed gear by
hand.
For moving each drilling frame round on its rails 15, 16, there is fitted on the
saddle 25 a horizontal spindle having on it a handwheel 45 and a worm 46, which
gears with a wormwheel on a vertical shaft 47, and this shaft 47 has at its bottom
end a bevil wheel gearing with a bevil wheel 48 on a horizontal shaft 49, which
has on it a pinion 50 engaging with an arc-shaped rack formed on the underside of
a flange 51 formed on the outer bearing rail 15.

page_text: The central table 5 can be turned round when required by means of a pinion 52
engaging with an arc-shaped rack on its under side, the pinion 52 being on a
horizontal shaft 53, the outer end of which is square to receive a crank handle.
In some modifications the drill-frame carriages are fitted to slide on the rails 17,
18, instead of being supported on wheels; and in some cases both rails 17, 18, are
made completely circular, and the drill frames can be moved completely round, to
admit of which a movable support is provided for the central table 5. By another
modification each drill frame may be fitted with two or more drill spindles.
Having thus particularly described our said Invention, and the manner of
performing the same, we have to state that we do not restrict ourselves to the
precise details herein described or delineated, but that what we believe to be
novel and original, and claim as the Invention secured to us by and in torms of
the hereinbefore in part recited Letters Patent is,-
1. The arranging or combining together of the parts of machinery for drilling
and rimmelling in the improved manner, substantially as hereinbefore described.
2. The combination of a central table or support made adjustable about its
vertical axis with one or more drilling frames carrying horizontal drill spindles with
gearing for adjusting and driving such spindles, the said frame or frames being each
independently adjustable about the main centre, substantially as hereinbefore
described.
In witness whereof, I, the said Charles Randolph Harvey, on behalf of the
said Alexander Harvey, junior, and myself, have hereunto set my hand and
seal, this Twenty-first day of August, in the year of our Lord One thousand
eight hundred and seventy-nine.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
C. R. HARVEY. (L.S.)

page_text: LETTERS PATENT to Alexander Harvey, junior, and Charles Randolph Harvey,
of the Firm of G. and A. Harvey, of Glasgow, in the County of Lanark, North
Britain, Engineers, for the Invention of "IMPROVEMENTS IN MACHINERY FOR
DRILLING AND RIMMELLING.”
Şealed the 19th August 1879, and dated the 24th February 1879.
Şealed the 19th August 1879, and dated the 24th February 1879.
PROVISIONAL SPECIFICATION left by the said Alexander Harvey and
Charles Randolph Havey at the Office of the Commissioners of Patents on the.
24th February 1879.
ALEXANDER HARVEY, junior, and CHARLES RANDOLPH HARVEY, of the Firm of
G. and A. Harvey, of Glasgow, in the County of Lanark, North Britain, Engineers.
"IMPROVEMENTS IN MACHINERY FOR DRILLING AND RIMMELLING."
This Invention relates to improved machinery designed more especially for drilling
and rimmelling rivet holes in cylindrical shells such as those of steam boilers, but
which is also applicable for other similar work.
The improved machinery comprises a central horizontal table on which the cylin-
drical shell or piece to be operated on is fixed in a position concentric with the
vertical axis of the table, together with one, two, or more drilling frames having
the drilling spindle or spindles directed horizontal to the same vertical axis. The
central table can be turned by means of a pinion gearing with a ring of teeth formed
or fixed on its under side; and the drilling frame or frames can also be moved
round the central vertical axis; there being thus two means of moving round the
axis, which gives great facility and convenience in practical working..
Each drilling frame is fitted on horizontal guides on a radial carriage which is
fitted with wheels running on fixed inner and outer concentric rails, and which is
also formed with an arm extending to the centre, and there centered on a fixed boss.
Drilling gear with accessory feeding and adjusting details of any suitable known
kind is provided on each drilling frame, and is driven by means of a horizontal
shaft carried by the radial carriage, and having on its inner end a bevil wheel in
gear with a bevil wheel on a short vertical shaft passing through the central boss.
This central vertical shaft is itself driven by bevil wheels from a horizontal shaft
arranged beneath the rails and driven in any convenient way. Each drilling frame
is moved circularly when required by means of a pinion gearing with teeth formed
D

page_text: on or fixed to the outer rails, the pinion being on a shaft carried by the carriage,
and geared by bevil wheels to a vertical shaft carried by the frame, and movable by
a band wheel and a worm and wormwheel.
In one convenient modification of the arrangement there are three drilling frames,
with provision for moving each of them circularly to the extent of about a sixth of
the circle. These frames may be made to operate at the same time on a boiler
shell, and be moved quite independently of each other until the three portions of
one-sixth of a circle each are completed, after which the central table can be turned
to bring the remaining three portions of the shell into position for being
operated on.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alexander Harvey and Charles Randolph Harvey in the Great
Seal Patent Office on the 22nd August 1879.
ALEXANDER HARVEY, junior, and CHARLES RANDOLPH HARVEY, of the Firm of
G. and A. Harvey, of Glasgow, in the County of Lanark, North Britain, Engineers.
"IMPROVEMENTS IN MACHINERY FOR DRILLING AND RIMMELLING."
This Invention relates to improved machinery designed more especially for
drilling and rimmelling rivet holes in cylindrical shells, such as those of steam boilers,
but which is also applicable for other similar work.
Our improved machinery comprises a central horizontal table on which the cylin-
drical shell or piece to be operated on is fixed in a position concentric with the
vertical axis of the table, together with one, two, or more drilling. frames having
the drilling spindle or spindles directed horizontally to the same vertical axis. The
central table can be turned and the drilling frame or frames can also be moved
round the central vertical axis, there being thus two means of moving round the
axis, which gives great facility and convenience in practical working.
Each drilling frame is fitted on horizontal guides on a radial carriage which is
movable on fixed inner and outer concentric rails, and which is also formed with an
arm extending to the centre, and there centered on a fixed boss. Drilling gear with
accessory feeding and adjusting details of any suitable known kind is provided on
each drilling frame, and is driven by means of a horizontal shaft carried by the
radial carriage, and driven at the centre.
Ad
In one convenient modification of our improved arrangement there are three
drilling frames, with provision for moving each of them circularly to the extent of
about a sixth of the circle. These three frames may be made to operate at the same
time on a boiler shell, and be moved quite independently of each other until the
three portions of one-sixth of a circle each are completed; after which the central
table can be turned to bring the remaining three portions of the shell into position
for being operated on.
And in order that our said Invention, and the manner of performing the same, may
be properly understood, we hereunto append two Sheets of explanatory Drawings,

page_text: to be hereinafter referred to, and representing a modification of our improved
drilling and rimmelling machinery. In these Drawings the same reference numerals
are used to mark the same or like parts wherever they are repeated.
Figure 1 on Sheet 1 of the accompanying Drawings is a plan, and Figure 2 on
Sheet 2 is a sectional elevation of the machine. A portion of a cylindrical boiler
shell 4 is represented as in position for being operated upon, being fixed concen-
trically down upon a circular horizontal table 5, which rests on three conical
rollers 6 (indicated by dotted lines in Figure 1), and is centered on a vertical pin 7,
fixed in a plate 8, forming part of the fixed framing. The supporting rollers 6 are
carried by brackets forming part of a casting 9, fixed below the table 5, and formed
with a bearing for a short vertical shaft 10, which is in the same axial line as the
table centre pin 7, and which is geared by bevil wheels 11 to a horizontal first-
motion shaft 12, having on it pulleys 13 for a driving belt.
In the machine delineated provision is made for three drilling frames, each of
which is upon a radial carriage 14, resting by wheels 15, 16, on two rails 17, 18,
forming parts of circles concentric with the table 5, and each carriage 14 is kept
accurately in position by means of a bracket 19 formed on it, and made with an
eye which is centered on the boss of the bearing of the central vertical shaft 10 (or,
as in the case of one of the three carriages, on the boss of the pin 7 above). Each
carriage 14 carries a horizontal radial shaft 20, which is driven by means of a bevil
wheel on its inner end in gear with a bevil wheel 21 on the central vertical
shaft 10; and each carriage 14 is formed with horizontal guides parallel to its
shaft 20, for the support and radial adjustment of the vertical frame or standard 22
of the drilling frame. The standard 22 is adjusted on the guides on its carriage 14
by a screw spindle 23 fitted with a capstan head 24 at its outer end.
The drilling gear is fitted on a saddle or plate 25 which is fitted to slide on
vertical guides formed for it on the standard 22, and it is counterbalanced by means
of a chain 26 passing over a pulley 27 at the top of the standard to a weight 28 at
the other side of the standard. A vertical rack 29 is formed or fixed on the
standard 22, and a spurwheel in gear with it is carried by the saddle 25, and can
be turned for raising or lowering the saddle by means of a worm on a spindle
having a handwheel 30 on its outer end.
The drill spindle 31, and parts immediately connected with it, may be arranged
in any convenient way, but as shown in the Drawings it is carried in two bearings
formed for it on the saddle 25, and between these bearings has on it a spurwheel 32,
which drives it by means of the usual key and groove, and is driven by a pinion 33
on an upper shaft 34. This pinion shaft 34 receives its motion by bevil wheels 35
from a vertical shaft 36, which is driven by means of bevil wheels at its lower end
from the radial shaft 20, the driving bevil wheel in each case being movable along
its shaft. The drill spindle is fed forwards by means of a belt 37, which transmits
motion from a pulley 38 on the vertical shaft 36 to a pulley 39 on a vertical shaft,
which by a worm and wormwheel drives a horizontal shaft 40, having a spur-
wheel 41 on its outer end. Figure 3 is an end elevation of the saddle 25, and
shows in dotted circles some of the feed gear, the wheel 41 gearing with a wheel 42,
which is on a stud, and which drives wheels 43 on two horizontal screw spindles.
These screw spindles act on a crosshead which is connected to the drill spindle 31
by a swivelling coupling, these parts being covered by a part of the saddle 25. The
shaft 40 has on its inner end a bevil wheel gearing with a bevil wheel on a short
horizontal spindle having on it a handwheel 44 for moving the feed gear by
hand.
For moving each drilling frame round on its rails 15, 16, there is fitted on the
saddle 25 a horizontal spindle having on it a handwheel 45 and a worm 46, which
gears with a wormwheel on a vertical sbaft 47, and this shaft 47 has at its bottom
end a bevil wheel gearing with a bevil wheel 48 on a horizontal shaft 49, which
has on it a pinion 50 engaging with an arc-shaped rack formed on the underside of
a flange 51 formed on the outer bearing rail 15.

page_text: The central table 5 can be turned round when required by means of a pinion 52
engaging with an arc-shaped rack on its under side, the pinion 52 being on a
horizontal shaft 53, the outer end of which is square to receive a crank handle.
In some modifications the drill-frame carriages are fitted to slide on the rails 17,
18, instead of being supported on wheels; and in some cases both rails 17, 18, are
mado completely circular, and the drill frames can be moved completely round, to
admit of which a movable support is provided for the central table 5. By another
modification each drill frame may be fitted with two or more drill spindles.
Having thus particularly described our said Invention, and the manner of
performing the same, we have to state that we do not restrict ourselves to the
precise details herein described or delineated, but that what we believe to be
novel and original, and claim as the Invention secured to us by and in terms of
the herein before in part recited Letters Patent is,―
.
1. The arranging or combining together of the parts of machinery for drilling
and rimmelling in the improved manner, substantially as hereinbefore described.
2. The combination of a central table or support made adjustable about its
vertical axis with one or more drilling frames carrying horizontal drill spindles with
gearing for adjusting and driving such spindles, the said frame or frames being each
independently adjustable about the main centre, substantially as herein before
described.
In witness whereof, I, the said Charles Randolph Harvey, on behalf of the
said Alexander Harvey, junior, and myself, have hereunto set my hand and
seal, this Twenty-first day of August, in the year of our Lord One thousand
eight hundred and seventy-nine.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
C. R. HARVEY. (L.S.)