Improvements in Stave Jointing Machines.
Year: 1893

page_text: Date of Application, 23rd May, 1893-Accepted, 24th June, 1893
COMPLETE SPECIFICATION.
Improvements in Stave Jointing Machines.
I, JOHANN ANTHON, Machine Maker, residing at Flensburg, in the Province
of Schleswig Holstein, Kingdom of Prussia, Germany, do hereby declare the
nature of my said invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
The object of my invention is to effect improvements in the construction,
arrangement, and manipulation of stave jointing machines.
And in order that my said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in-which--|
similar letters of reference indicate corresponding parts.
Fig. 1 is a longitudinal sectional elevation of my invention.
Fig. 2 is a plan, and Fig. 3 a transverse elevation, both partly in section.
The two rotary cutters A A are mounted in two frames B, B, with the spindles
and driving pulleys x, as shown. The upper ends of the frames B B are slotted,
and work upon slides fitted to a pin C, common to both frames. This pin C
constitutes the centre of the radius to which the staves are jointed, and may be
considered as the centre of the cask; and the cutters A A form radial lines from
this centre. The angles formed by the frames B, B, and cutters A are adjustable
by means of the levers D D, pivoted to the frame at D¹ D₁, and to the frames BB
at E E. Simultaneity of action of the levers D D and frames B B is secured by
the connecting link G pivoted to the levers D D, as shown. The lever J is pivoted
to the frame at f, and one end of the link H is pivoted to the lever J at v, and to
one of the levers D at w'. The lever J is fitted with a spring catch engaging in
the notched plate K. It will thus be seen that the angle of the cutters A A,
relatively to the stave Z, can be adjusted, as required.
The stave to be cut is laid upon a cast iron frame L, consisting of two plates,
pivoted to the frame at L'. Between these two plates a sliding carriage M is
fitted, provided with a toothed rack m, in gear with a pinion y. N is a weighted
lever pivoted to the carriage M at O. Below the carriage M is a guide or pattern
plate P, which rests and travels upon the wheel Q, and which pattern plate
governs the height of the stave between the diagonally rotating cutters A A.
As the stave Z is caused to travel, operated on each side by the rotary cutters,
the carriage M descends to a depth corresponding to the form of the curve of the
pattern plate P, whereby the stave is cut to the exact shape required to form a
joint when put into the barrel.
In order to prevent waste of material, and to centre the stave at one operation,
two rails S S are secured to the frame L, by means of angle levers R R, one arm
of which is pivoted to the rails, and the other arms coupled by a bar r as shown.
On the rails, at certain distances apart, are fixed wipers u u, which press
against the stave Z, and keep it in a central position, and parallel to the
rails S S.
In order to centre the stave by the lever, and at one operation to put the
revolving cutters the necessary distance apart, the rails S S are connected to the
frames B B, by means of pins T, screwed to the frames B B; the pins T passing
through slots in plates S¹ fixed rectangularly to the rails S S. While the frame L,
together with the rails S S, is moving vertically down and up again, the pins T
sliding in the slots of the plates S', with the rails S S attached.
In Fig. 2 both of the pins T are shown, but in Fig. 3 only one is shown, on the
left hand side.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a stave jointing machine, the combination of two revolving cutters A A,
mounted in adjustable frames B B, so as to cut the stave at the required angles,
while the stave is caused to travel in a forward and also in falling and rising
directions, guided by a pattern plate P, travelling upon a wheel Q, substantially
as herein before described and illustrated by the drawings.
2. The general construction, arrangement, and combination of the several and
respective parts, together forming my invention of improvements in stave jointing
machines, substantially as herein before described, and illustrated by the
drawings.
1
1000
GEO. DOWNING,
8, Quality Court, London, W.C., Agent.