improvements in saws for cutting staves for casks
Year: 1898

page_text: I, GEORGES AUCLAIR, Manufacturer, residing at Neaune, Cote d'Or, in the Republic
of France, 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 for improvements in saws for cutting staves for casks has for its
object to provide a cylindrical saw with continuous rotary motion for cutting staves
for casks at one operation, with the curves corresponding to the intended diameter
of the cask..
In the accompanying sheet of illustrative drawings:-
Figs. 1, 2 and 3 are side elevation, end elevation, and plan respectively of a sawing
machine constructed according to this invention.
A is the frame of the machine: B a shaft receiving motion from a motor in any
suitable manner. It is here assumed that this motion is received through the
medium of a driving belt and pulleys. C¹ is a fixed pulley on to which the driving
belt is moved from the loose pulley C: D, the driving pulley of the machine, keyed
to one end of the shaft B. E is the machine belt, which actuates the cylindrical
saw F made from a steel band, the diameter of which is a little larger than that of
the pulley G to which it is applied, surrounding the pulley and in contact with
about one half of its rim. This pulley when not made of wood, is provided with a
cover or mounting of india rubber or leather, which protects the saw and ensures
the required adherence. I and I¹ are guides each formed of two pieces of wood fixed
one on each side of the saw, against a guide bearer M, and separated from each other
by a narrow opening, the width of which is a little greater than the thickness of the
band forming the saw; so that this band passes between the blocks of wood of the
guides I I¹ without touching their curved sides. However the saw is supported
both on the inside and on the outside by thin bronze projecting plates inserted in
the body of the wooden blocks so that the saw is held firmly as far as the opening a.
The guides I I¹ formed by the plates or blocks of wood and the bronze plates are
wood and bronze guides, which are supported by a guide bearer M. J is a

page_text: table serving to support the wood to be sawn; K a guide placed in front and
extending behind the inner face of the saw, enabling the thickness to be given to the
staves to be regulated; its extremity is tapered off somewhat. L is a log or block
of wood of any desired shape and length, which is fed to the saw, for being cut into
staves. M, the guide bearer already mentioned, which moves with the table that
supports simultaneously the log or block to be sawn and the bearings of the saw
pulley shaft. N is a cast iron plate forming a stop to the table O which supports
the bearings 6 61: P an adjusting screw actuating the cast iron frame, or check table
O by means of the screw block c placed below the said plate or table O. This
enables the desired tension to be imparted to the belt and also to relax it when
it is desired to un-mount the saw for the purpose of dressing it. Q is the shaft
carrying the saw pulley G which pulley as will be seen has a slightly conical rim
for facilitating the admission of the saw and affording it a support against the
re-action sustained by the teeth in contact with the wood L. The pulley G is
fixed on its shaft until it is desired to remove that pulley and to replace it by
another of larger or smaller size according to the diameter of the casks which it is
intended to manufacture.
saw,
The band E having received the desired tension brings the saw F against the rim
of the pulley G and actuates it, imparting to it its own degree of velocity. The
which has a diameter a little larger than the pulley runs at the side of the
table guided and supported in a semi-circular path by the guides I I¹ at the top
and bottom, and which are furnished with bronze plates. In the course of this
semi-circle, an embrasure or free space a is formed through which the log or block of
wood passes and is brought into contact with the teeth, which operate downwards
and hold the log or block on the table without the necessity of employing any
carriage. At the same time, the stave, the thickness of which is regulated by the
action of the guide K has a free passage through the embrasure and is released on
the inner side of the saw itself.
It will thus be seen that the staves so prepared and sawn are economically produced
and quite perfectly, with the required curves on both sides, without any unnecessary
labour and without waste. This new system of saw dispenses advantageously with
the employment of the adze or of the plane and enables coopers to be supplied with
staves all ready for fitting together.
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 :-
A cylindrical saw having a continuous rotary motion for cutting staves for casks
and barrels arranged and constructed substantially as described and illustrated in the
drawings.
Dated this with day of Jan1000