Improvements in Vertical Drilling Machines.
Year: 1899

page_text: Date of Application, 9th June, 1899
Complete Specification Left, 9th Mar., 1900-Accepted, 14th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Vertical Drilling Machines.
I, THOMAS CARTER BEELEY, of Hyde Junction Iron Works, Hyde, in the County
of Chester, Engineer, do hereby declare the nature of this invention to be as
follows:-
My improvements are applicable to vertical drilling machines in which the
work to be drilled is placed, and secured when necessary upon the base or bed
plate of the machine and the size of the work which can be placed on the machine
is limited by the distance between the centre of the drill spindle and the pillar
of the machine and the chief objects of my improvements are to enable larger
pieces of work to be drilled upon the machine also to provide means for taking
the thrust of the drill and preventing the work table springing and for locking
the said table when the work is in position for being drilled.
In carrying out my improvements 1 utilise the T head slots in the base plate
of the machine to secure a table to the base plate by bolts, and I arrange this
table to carry an intermediate piece to which is secured a nut and through this
nut passes a screw carried in bearings in the table, so that by turning a handle
on this screw the intermediate piece can be moved to or from the pillar of the
machine. The upper portion of this intermediate piece is preferably prepared
to receive a number of anti-friction balls which lie in an annular groove and
on these balls rests a table preferably a circular table for carrying the work, this
table has a circular projection or stem on its lower side which fits into a corre-
sponding recess or socket in the intermediate piece.
In order to take the thrust of the drill I mount upon a stud carried in bearings
in the intermediate piece an anti-friction roller preferably tapered on its peri-
phery, and the lower edge of the circular work table is turned to correspond
with the surface of the roller. The position of the roller is in line with the
spindle of the drilling machine but not necessarily immediately below the
spindle as this depends upon the position of the intermediate piece on the table;
but in all cases the roller serves to take the thrust of the drill and prevent the
circular table from springing.
To lock the work table when the work is in position for being drilled. I
employ any suitable device as for example, I cast upon the under side of the
circular table an annular flange, and on a suitable stud in the intermediate
piece I pivot a pair of jaws and I employ a screw with right and left hand thread
which has its bearings in the intermediate piece and passes through the jaws,
this screw carries a cross at its outer end which the operator can move with his
foot to cause the jaws to grip the flange and lock the table or to release it as
required.
Dated this 8th day of June 1899.
H. B. BARLOW & GILLETT,
Agents for Applicant.

page_text: I, THOMAS CARTER BEELEY, of Hyde Junction Iron Works, Hyde, in the County
of Chester, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My improvements are applicable to vertical drilling machines in which the
work to be drilled is placed, and secured when necessary upon the base or bed-
plate of the machine and the size of the work which can be placed on the machine
is limited by the distance between the centre of the drill spindle and the pillar
of the machine; and the chief objects of my improvements are to enable larger
pieces of work to be drilled upon the machine, also to provide means for taking
the thrust of the drill and preventing the work-table springing; and for locking
the said table when the work is in position for being drilled.
In the accompanying sheet of drawings-
Figure 1 is a cross section, Figure 2 a plan with the work-table removed, and
Figure 3 a longitudinal section of part of a vertical drilling machine constructed
with my improvements.
In these views, a designates the base-plate of the machine, a¹ the usual T
head slots therein, and the correspondingly shaped bolts fitted in the slots and
securing the table c to the base-plate . In a slideway on the table c is fitted
an intermediate piece to which is secured a nut e, and through this nut passes
a screw f, carried near each end in bearings on the table c.
On the screw f is fixed a cross or handle g, by turning which the intermediate
piece can be moved to or from the pillar h, which carries the usual vertical
drilling appliances (not shown). The upper portion of the intermediate piece d
is recessed and prepared with an annular groove to receive a number of anti-
friction balls i, and on these balls rests a table j, preferably a round table, for
carrying the work to be drilled. The work-table has, on its under side, a
hollow stem which fits into a corresponding socket in the intermediate piece d.
In order to take the thrust of the drill an anti-friction roller k, preferably
tapered, is mounted on a stud 7, carried in bearings on the intermediate
piece d, and the lower edge of the round table j is turned at 2 to a taper corre-
sponding to the surface of the roller k, which serves to take the thrust of the
drill and to prevent the round table j from springing.
To lock the round table j when the work is in its position for being drilled,
any suitable device may be employed-as for example-an annular flange, is
rast upon the under side of the table j, and a pair of gripping jaws m are mounted
on a stud n, carried by the intermediate piece d, and a screw o with right and
left hand threads which has a bearing in the intermediate piece d, passes
through the jaws m and has a cross or handle at its outer end which the
operator can move with his foot to cause the jaws m to grip the flange 3 and lock
the table j or to release it as required.
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 combination with the base-plate a and pillar of a vertical drilling
machine, of the work-table j supported and free to be rotated on an intermediate
piece arranged to be moved upon its supporting base to or from the said
pillar h, said work-table j being provided with locking means and being

page_text: additionally supported by the anti-friction roller k, all substantially as and for
the purposes herein set forth.
2. The combination with the base-plate a, and pillar, of a vertical drilling
machine, of the piece d movably carried upon the base-plate, means for adjusting
it toward and from the pillar, the work-table rotatably mounted upon the
piece d, the roller journalled in an extension of the piece d, the annular flange
on the under side of the work-table bearing on the roller, a second annular
flange on the under side of the work-table and gripping jaws also carried
by an extension of the piece d and adapted to grip the flange and means for
operating said jaws, all substantially as herein set forth.
Dated this 8th day of March 1900.
H. B. BARLOW & GILLETT,
Agents for Applicant, 17, St. Ann's Square, Manchester.