Improvements in Machines for Boring and Turning Metal.
Year: 1889

page_text: Date of Application, 9th Dec., 1889
Complete Specification Left, 9th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Machines for Boring and Turning Metal.
1, GEORGE RICHARDS, of Atlantic Works Broadheath, Cheshire, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to that class of machines for boring and turning metal in which
the work is rotated by a face plate revolving in a horizontal plane, and the tool is
applied from above by means of an overhanging arm which is capable of being moved
on slideways across the face plate.
My invention consists in the application to such machines of the following devices,
either singly or in combinations of two or more of them.
1. I arrange on the tool bar of the overhanging arm a turret tool holder capable of
holding several tools so that any of them can be successively and rapidly brought into
position to act on the work.
2. I counterpoise the weight of the tool bar, the turret and the tools, so that they
can be easily moved up and down.
3. I arrange for the rapid up and down movement of the tool bar by hand.
4. I arrange variable speeds to the rotation of the horizontal face plate, to the
transverse motion of the overhanging arm, to the vertical motion of the tool bar, and
to the feed motions.
5. I apply the variable feed motions by means of a disk rotated by the friction of
a roller which can be adjusted to variable distances from the centre of the disk.
6. I arrange the plate which carries the turret tool holder, so that it can be adjusted
to any desired angle from the vertical and can present the tool to the work at a
corresponding angle, so as to turn conical forms.
Dated this Seventh day of December 1889.
GEORGE RICHARDS.
COMPLETE SPECIFICATION.
Improvements in Machines for Boring and Turning Metal.
I, GEORGE RICHARDS, of Atlantic Works, Broadheath, Cheshire, Engineor,
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:-
My invention relates to that class of machines for boring and turning metal in which
the work is rotated by a face plate revolving in a horizontal plane, and the tool is
applied from above by means of an overhanging arm which is capable of being moved
on slide ways across the face plate.
Referring to the drawings,
Fig. (1) is a side view of the machine,
Fig. (2) a front view of the same.
Fig. (3) a back view showing arrangement of the feeding mechanism,
Fig. (4) an end view of the same.
Fig. (5) a plan of the base showing the feeding mechanism.
Fig. (6) shows the counterweight.
Figs. (8 & 7) are details of ram & turret.
Like figures of reference in each view refer to the same part.
No. (1) is the table to which the work is attached, No. (2) is the main frame of the
machine, No.. (3) is the main bracket in which the slide (4) is moved vertically,
No. (5) is the turret in which the tools are attached. The main bracket (3) has a
cross movement on the frame (2) moved by the screw (6), so as to bring the tools to
ID 277

page_text: and from the centre of the table (1). The slide (4) is rapidly moved vertically by
rack (7) and pinion (8), which are connected by gear wheels and shafts to the driving
mechanism. The pinion (8) is also rotated by the handwheel (31). The turret (5)
revolves on the pivot (9) and is held in position by the notches (10). The turret is
locked in position by the handle (11). Any number of tools up to four are inserted 5
in the holes (12) in the turret.
When the machine is used for boring, the main bracket (3) is brought into position,
so that the centre of the turret corresponds with the centre of the table, so that each
tool brought into position, will bore a hole in the centre of the table. When in this
position, the main bracket (3) is locked to the frame (2) by the handle (13). This 1
position is determined by, the dowel pin (14).
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The various feed motions of the machine, are obtained by means of the friction,
disc (15), which is driven by the main driving shaft, and rotates the friction wheel (16). "
This wheel is moved across the face of the disc (15) by means of the screw (17) and
hand wheel (18), and thus varies the speed of the disc. The friction wheel (16) is 1
fitted to, the shaft (19) by a sliding key. This shaft (19) connects with the feed
gears (20) and (21) attached to the end of the feeding screw (6) and the shaft (22).
The shaft (22) connects with the vertical shaft (23) which drives the worm and
wheel (24) and (25). This worm wheel is on the end of the pinion shaft (8). It
will be seen from this that the rate of feed and the direction of feed can instantly.
be changed by. rotating the hand wheel (18) and moving the wheel (16) on either
side of the centre of the friction disc (15).
The table (1) is supported in bearings in the main frame.
the pinion (26) working into a gear (27) attached to the table.
the shaft (28) are rotated by the cone (29), the different
giving different speeds to the table (1). The ram (4) is
weight (30).
t
"
1.1
The table is rotated by
The pinion (26) and
diameters of the cone
counterpoised by the
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is
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** (1
In combination with a machine for boring and turning metal in which the work
is rotated by a face plate revolving in a horizontal plane, and the tool is applied from
above by means of an overhanging arm capable of being moved on slide ways across
the face plate, the application of the following devices either singly or in combination
of two or more of them.
1. Arranging on the tool bar of the overhanging arm, a turret tool holder capable
of holding several tools, so that any of them can be successively and rapidly be brought
into position to act on the work.
: :4
2. Counterpoising the weight of the tool bar, the turret and the tools, so that they.
can be easily moved up and down.
3. Arranging for the, rapid up and down movement of the tool bar by hand.
4. Arranging variable speeds to the rotation of the horizontal face plate, to the
transverse motion of the overhanging arm, to the vertical motion of the tool bar, and
to the feed motions.
5. Applying the variable feed motions by means of a disc which rotates, by friction,
a roller which can be adjusted to variable distances from the centre of the disc, and.oni
either side thereof.
All substantially as described.
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