Improvements in Machinery for use in the Manufacture of Casks or Barrels.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery for use in the Manufacture of
Casks or Barrels.
I, ANTHON BERNHARD ELIAS NILSEN, of Fredrikstad, in the Kingdom of
Norway, Manufacturer, 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 machinery for use in the manufacture of casks or
barrels and consists in an improved arrangement of mechanism for curving and
bevelling the edges of staves for casks or barrels whereby
1. The staves, after having been bevelled on one edge, can be turned over in a
quicker manner than by machines heretofore constructed.
2. The frame can be adjusted in such a manuer that a greater or smaller curve
can be given to the edges of the staves.
3. There is no risk of curving the stave to too great or too small a degree.
4. A larger number of staves can be curved at once than by existing machines.
In the accompanying drawing,
Figure 1 is an elevation partially in section of a machine for curving and
bevelling the staves of casks or barrels constructed according to my invention :
Figure 2 is an end elevation; and,
Figure 3 is a plan of the same:
Figure 4 is a face view of a concave disc hereinafter described for bevelling
the staves.
a is the driving shaft of the machine which is actuated through the medium of
a driving pulley or drum b. On the shaft a is keyed the concave bevelling disc c
on which plane-irons d are placed. At both ends of the part e of the frame of the
machine bearing-standards are placed which are vertically adjustable and in
which an upper frame g is mounted so that it can oscillate therein, its adjustable
journals working in the bearings; this frame carries on its upper surface angle
irons against which bear one side and both ends of the material X from which
the staves are to be formed. The staves are kept in position by means of holders i
adjustably fixed upon bars k attached to a lever oscillating round a journal ¹ and
provided with a weight 1, whereby the staves are pressed together; on the opposite
side of the frame g counter-weights are placed. In the upper ends of the bearing-
standards are slots m in which are placed adjustable clamping screws m¹; in one
of the slots m works a stop-pin or stud n' fixed on one side of the frame g, while on
the other side of the frame g a stop-bar n' is jointed to a spring-lever o on a handle p
whereby it can be alternately moved in and out of the other slot m.
By guiding, by means of the handle the frame g with the staves against the
disc c while the latter is in motion and at the same time pressing the lever o against
the handle P the frame I will be stopped, according to the position to which the
clamping screws m¹ have been adjusted, as soon as the stop bar n² comes against
the one clamping screw m'. When one edge of the stave has been planed the
frame g is, by means of the handle p, moved back until the levers come against
stops which causes the bar k with the holders i to rise; the stave is thereby freed
and must be turned with its other edge presented towards the disc c.
The frame g
with the staves is again moved against the disc c by means of the handle p but
without pressing the lever o, the stop-bar n being consequently clear of the slot m,
and the frame g is stopped by the stop-pin n' coming against the other clamping
screw m²; the position of the stop-pin n' is slightly to the rear of that of the bar n³,
as will be seen by reference to Figure 2, so as to bring the staves nearer to the
disc C, when they are to be planed on the second edge.

page_text: The concavity of the disc c determines the curve to be given to the edge of the
stave, but if the stave is required to be curved to a greater extent than the con-
cavity of the disc will allow, the plane-irons d must be placed so that they project
more at the outer edge of the disc. This object can, however, be achieved in a
more mechanical manner by making the frame so that it can revolve upon a
journal and be guided by means of screws t moving in slots & (the said screws t
are tightened up when the stave is only to be curved to the concavity of the disc c).
The curve of the staves is determined by adjusting stops u.
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. In machines for curving and bevelling the edges of staves for casks or barrels
the employment of an oscillating frame g so constructed and arranged that an
attendant can, by means of a handle p, easily guide the stave against a bevilling
disc c and, by means of an arrangement of holder i, k, l, can bevil a number of
staves at once and can easily free the stave when it has been bevilled on one edge,
an arrangement of slots m, screws m³, stop-pin n', stop-bar n² and lever o serving to
prevent risk of the stave being curved to too great or too small a degree, the whole
frame being made to revolve round a journal r so as to allow the edges of staves,
by means of stops u, to be curved to a greater degree than the curve of the
concavity of the disc c, substantially as set forth.
2. The improved machine for use in the manufacture of casks or barrels herein-
before described and illustrated in the accompanying drawing.
Dated the Oth
1001
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.