Improvements in Machines for Crozing or Chimb-notching and for Turning Tuns and the like.
Year: 1895

page_text: Date of Application, 31st July, 1895
Complete Specification Left, 30th Apr., 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Machines for Crozing or Chimb-notching and for
Turning Tuns and the like.
I, ADOLPHIE FRÜHINSHOLZ of 95 Boulevard Beaumarchais, Paris, in the
Republic of France, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a lathe or machine for cutting chimb-notches in the
staves and turning the heads of tuns vats and such like structures so arranged as
to be applicable to tuns of all dimensions.
The new lathe or machine comprises essentially
1. A bed with parallel rails fitted at one end with a box cast in one piece
therewith, to carry the poppet-head which supports a face-plate or chuck with
dogs for carrying and holding the barrel and means for adjusting the dogs.
2. A sliding carriage reciprocating longitudinally along the bed and operated by
a rack and pinion actuated by a crank handle.
The sliding carriage carries also devices for imparting transverse motion to a
box mounted thereon; this movement which takes place in or on a dovetailed
slideway is produced by means of a screw whereof one end may receive a wheel
which may be actuated by hand. This motion permits the displacement in a
transverse direction of the tool, according to the diameter of the tun which is to
have its head turned. The box is pivotted to the slide so as to permit of its
being adjusted (by means of a set screw) to suit the obliquity of the interior
of the tun; that part rotating say to a distance of 30 to 40 millimeters.
On the top of the sliding carriage are secured two bearings supporting a
horizontal counter-shaft on one end of which is mounted a pinion gearing with
another pinion, keyed on a horizontal shaft herein for convenience termed the
pinion shaft parallel to the lathe bed.
The relation of the former-to the latter pinion is as 1-2. The pinion shaft is
rotated by means of spur-pinions and an intermediate wheel. A disengaging gear
enables this movement to be arrested.
The horizontal counter-shaft drives a vertical shaft by means of a pair of mitre-
wheels. One of the mitre-wheels may be fixed at any part of the counter-shaft and
the vertical shaft which projects upwards through a vertical socket fixed on a chair
mounted on the sliding carriage is free to move to and fro transversely in relation
to the lathe bed so as to be suitably located for the work, in a slide-way formed in
the upper part of the chair.
By means of such displacement it will always be practicable, before commencing
work on a tun, and after regulating the position of the tool, to bring into proper
position the vertical shaft, always within the prolongation of the tool-carrying
slide-carriage. The mobility of the above named mitre-wheel along the counter-
shaft enables the vertical shait to be shifted without interference with the
counter-shaft, and while still leaving the two mitre pinions in engagement with
each other.
The vertical shaft carries on its upper end a crank-disc fitted with a crank pin
of which the eccentricity, in relation to the vertical shaft is capable of modifi-
cation, the crank pin for this purpose being adjustable in the disc, which

page_text: arrangement enables the concavity given to the tun-heads to be modified according
to requirements.
This crank disc by means of a connecting rod reciprocates a sliding carriage
which carries on a pivot pin the tool-carrying carriage or slide and also com-
municates thereto its own reciprocating motion. This pivotting arrangement
enables two tools to be operated and presented successively to the part of the
tun which requires to be prepared, without any interruption to the alternative
longitudinal movement thereof.
The movement of the tool-bearing slide-carriage is effected on a dove-tailed
slide-piece by means of a screw; and it may be either longitudinal or trans-
verse according to the position given to the slide on the above-mentioned
pivot. The forward movement given to the tool-bearing slide-carriage may be
utilised;-
1. To cause one of the tools to work on the entire length of the interior
surface of the tun, by causing the carriage or slide to pivot over one quarter of
a revolution.
2. To cause the other tool either to pare or trim the heads or to cut the croze
or chimb-notch.
The effective length of the connecting rod transmitting movement to the tool-
bearing slide-carriage, will evidently vary according to the more or less oblique
position of the carriage, and to allow for, and compensate for, this variation, the
said rod is provided with a contrary-screw-threaded extension nut.
The ring-frame encircling the tun carries, supported on three rollers a conical
hoop which has to be slipped on to the outside of the tun; the object of these
rollers is to avoid the friction which takes place between the ring-frame and the
hoop when the former pushes the latter on the tun as it rotates. The ring frame
is supported by a carriage which may be pushed forward by means of a crank
acting on a pinion engaging with the before-mentioned rack. Each grooved roller
is movable radially in relation to the ring. To this end, each roller is pivotted
upon a carriage movable radially, in and out, by means of a rack on which moves
to and fro a pinion which may be rotated by a crank handle.
It is therefore evident that by this arrangement it will be possible to cause the
-three-rollers-to-approach_towards_or_recede from the centre of the ring, to suit
the varying diameter of the different tuns to be operated upon.
These rollers, being thus adjusted by the means indicated and the hoop held in
place thereby, it suffices, in order to pass the hoop over the tun, to move the ring-
frame towards the chuck; the hoop is rotated by the rotation of the tun, and turns
therewith, it being impossible for its rotation to be arrested by slight friction of the
ring upon the rollers.
By this system of ring-mounting the tun, as soon as it is brought into the
workshop to be prepared, may be centred on the lathe and the hoop adjusted
without having to hammer the latter fast on the tun. It suffices to tighten up the
tun with the dogs, which are not thoroughly screwed home, and then apply the
hoop against the face plate of the lathe, moving progressively the ring-frame
forward by means of its carriage.
These are all the organs constituting the lathe for crozing or chimb-
notching the tun and preparing the heads, and the working of the machine is as
follows;-
After having centred the tun, as just explained, by the aid of the hoop, the
workman regulates the position of the tool to be first used so as to set it
exactly in front of the edge of the tun; he then causes the box to pivot on its
base until the axis of the slide and carriage falls in the generatrix of the tun.
That done, he displaces the vertical shaft so as to bring it into the prolongation of
the reciprocating carriage; and, in doing so, he shortens or lengthens the actuating
connecting-rod by means of the before-mentioned extension nit.
When 'these organs are exactly regulated, the lathe is set in rotation, 'the
longitudinal shaft turns at the same speed of rotation on the lathe itself and

page_text: drives the horizontal counter-shaft by means of the bevel wheels which as
previously described are in the proportion of 2 to 1.
Consequently the counter-shaft will rotate with double the speed of rotation of
the longitudinal shaft. Similarly because the counter shaft drives the vertical
shaft by means of an equal pair of bevel pinions the vertical shaft will also have
twice the rotary speed of the longitudinal shaft. It follows thence that, for each
revolution of the tun the tool-bearing slide-carriage will be actuated twice by the
crank-head and will thus be moved alternately, to and fro, twice. Thus, the tool
being carried twice forwards and twice backwards during a revolution of the
tun, will consequently produce upon the head of the tun a convex and a concave
surface.
•
If the ordinary tool, or hook is replaced by a tool intended to cut the chimb-
notch or croze, a convex and a concave groove will consequently be formed parallel
to the head of the tun, in which it is possible to fix a concave end which will offer
more resistance to the pressure of liquids and carbonic acid (in tuns for beer) than
the ordinary flat ends.
Dated this 31st day of July 1895.
BOULT & WADE,
Agents for the Applicant.
Improvements in Machines for Crozing or Chimb-notching and for
Turning Tuns and the like.
I, ADOLPHE FRÜHINSHOLZ of 95 Boulevard Beaumarchais Paris 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 relates to a lathe or machine for cutting chimb-notches in, and
turning the ends of the staves of tuns vats and such like structures so arranged as
to be applicable to tuns of all dimensions.
The invention will be best understood by reference to the accompanying drawings
in which
Fig. 1 is a front elevation
Fig. 2 an end elevation and
Fig. 3 a plan of a machine constructed according to this invention.
The new lathe or machine comprises essentially
1. A bed with parallel rails A, fitted at one end with a box B which may be
cast in one piece therewith, to carry the poppet-head, which supports a face-plate
or chuck C with dogs e for carrying and holding the barrel (Fig. 1) and means
for adjusting the dogs.
2. A sliding carriage D reciprocating longitudinally along the bed A, and
operated by a rack d (Fig. 1) and by a pinion actuated by a crank handle.
The sliding-carriage D carries also devices for imparting transverse motion to
the box or cross-slide D¹ mounted thereon; this movement which takes place in a
dovetailed slide-way d' (Fig. 1) is produced by means of a screw E (Fig. 3) whereof
one ende may receive a hand-wheel or other suitable operating-device. This
motion permits the displacement in a transverse direction of the tool, according to
the diameter of the tun which is to be operated upon. The box D' is pivotted to
the slide Do which reciprocates in the slide-way d' so as to permit of its being
adjusted (by means of a set-screw) to suit the obliquity of the interior of the end
of the tun
or staves which interior part is turned for say a distance of from
30 to 40 millimetres from the edge.
On the top of the sliding-carriage D are secured two bearings F F' supporting a

page_text: horizontal counter-shaft G (Figs. 2 and 3) on one end of which is mounted a bevil
pinion g gearing with another bevil pinion g' keyed on a horizontal shaft H parallel
to the lathe-bed. The relation of the pinion g to g' is as 1:2. The shaft H is
rotated by means of spur-pinions and an intermediate wheel ³ (Figs. 1 and 3).
A disengaging device h, enables this movement to be arrested.
The horizontal counter-shaft G drives a vertical shaft G₁ by means of a pair of
mitre-wheels i¹ (Figs. 1 and 2). The mitre-wheel may be fixed at any part of
the counter-shaft G and the vertical shaft G₁, which projects upwards through a
vertical socket j fixed on a chair K mounted on the sliding-carriage is free to move
to and fro, transversely in relation to the lathe bed, so as to be suitably located
for the work in a slideway k formed in the upper part of the chair.
By means of such displacement it will always be practicable, before commencing
work on a tun, and after regulating the position of the tool, to bring the axis of
the vertical shaft G, into the continuation of a line joining the two points x and y
Fig. 3. The mobility of the mitre-wheel along the counter-shaft G enables the
vertical shaft G, to be shifted without interference with the counter-shaft G, and
while leaving the two mitre pinions i i¹ in engagement with each other.
The vertical shaft G₁ carries on its upper end a crank-disc L fitted with a crank
pin of which the eccentricity, in relation to the vertical shaft G, is capable of
adjustment, which arrangement enables the concavity given to the turned edge of
the tun or ends of the staves to be modified according to requirements.
The crank-disc L, by means of a connecting-rod 41, reciprocates a sliding
carriage D2, which carries on a pivot-pin the tool-carrying carriage or slide D³ and
also commnnicates thereto its own reciprocating motion. This pivotting arrange-
ment enables two tools a and b (Fig. 3) to be operated and presented successively
to the part of the tun which requires to be prepared, without any interruption to
the reciprocating movement thereof.
The movement of the tool-bearing slide-carriage is effected on a dove-tailed
slide-piece by means of a screw E¹ (Figs. 1 and 3); and it may be either longi-
tudinal or transverse according to the position given to the slide on the above-
mentioned pivot. The forward movement given to the tool-bearing slide-carriage
by means of the screw E' may be utilised ;-
1. To cause the tool a to work on the interior surface of the tun, by turning the
tool-carriage or slide D³ one quarter of a revolution, in relation to the position
shown in Fig. 3;
2. To cause the tool b to work in the position shown in the drawing, either to
pare or trim the stave-ends, or to cut the croze or chimb-notch.
The effective length of the connecting rod 7, transmitting movement to the slide-
carriage D₂ will evidently vary according to the more or less oblique position of
the carriage, and to allow and compensate for this variation, the said rod is provided
with a contrary-screw-threaded extension nut l.
The ring-frame M encircling the tun supports by its three rollers m, m₁ m,
(Figure 2) a conical hoop M, which has to be slipped on to the outside of the tun;
the object of these rollers is to avoid the friction which takes place between the
ring-frame M and the hoop M₁ when the former pushes the latter on the tun as it
rotates. The ring-frame M is supported by a carriage M² (Fig. 1) which may be
moved forward by means of a crank handle or equivalent acting on a pinion engaging
with the before mentioned rack d. Each roller m m₁ m₁ is movable radially in
relation on the ring frame M. To this end, each roller is pivotted upon a carriage N,
movable radially, in and out, by means of a rack o with which engages a pinion p
which may be rotated by a crank-handle p¹.
It is therefore evident that, by this arrangement, it will be possible to cause the
three rollers m my m, to approach towards or recede from the centre of the ring, to
suit the varying diameters of the different tuns to be operated upon.
These rollers, being thus adjusted by the means indicated, and the hoop M, held
in place thereby, it suffices, in order to pass the hoop over the tun, to move the
ring-frame M in the direction indicated by the arrow in Fig. 1 the hoop M₁ is

page_text: rotated by the rotation of the tun, and turns therewith, it being impossible.
for its rotation to be arrested by the slight friction of the ring M³ upon the
rollers m m, and m₁.
'
By this system of ring-mounting, the tun as soon as it is brought into the work-.
shop to be prepared, may be centred on the lathe and the hoop M' adjusted without
having to hammer the latter fast on the tun. It suffices to tighten up the tun with
the dogs c, which are not thoroughly screwed home, and then apply the hoop M',.
moving the ring-frame forward by means of its carriage M².
These are all the organs constituting the lathe for crozing or chimb-notching
the tun and trimming and turning the stave-ends, and the working of the machine
is as follows;-
After having centred the tun, as just explained, by the aid of the hoop M, and.
tightened the dogs c, the workman regulates the position of the tool a (Fig. 3), in
the first place by turning the screw E, so as to set it exactly in front of the edge
of the tun; he then turns the box D₁ on its base, until the axis of the slide and
carriage D, is in line with the generatrix of the tun. That done, he displaces the-
vertical shaft G₁, so as to bring its axis into line with the points x and y; in doing
so, he shortens or lengthens the connecting-rod ½ by means of the extension.
nut l
When these organs are exactly regulated, the lathe is rotated, the longitudinal
shaft H turns at the same speed of rotation as the lathe itself and drives the-
horizontal counter-shaft G by means of the bevel wheels g' and 9, which as.
previously described are in the proportion of 2 to 1.
Consequently the counter-shaft G will rotate with double the speed of rotation
of the longitudinal shaft H, similarly, because the counter-shaft G drives the
vertical shaft G₁, by means of an equal pair of bevel pinions i, the vertical.
shaft G, will also have twice the rotary speed of the longitudinal shaft H. It
follows thence that, for each revolution of the tun, the tool-bearing slide-carriage will
be actuated twice by the crank-dise L, and will thus be moved alternately, to and
fro, twice. Thus, the tool being carried twice forwards and twice backwards during
a revolution of the tun, will consequently produce upon the edge of the tun a
convex and a concave surface.
If the ordinary tool or hook is replaced by a tool intended to cut the chim b-.
notch or croze, a convex and a concave groove will consequently be formed parallel
to the edge of the tun, in which it is possible to fix a concave end or head which.
will offer more resistance to the pressure of liquids and carbonic acid (in tuns-for-
beer) than the ordinary flat ends or heads.
Having now particularly described and ascertained the nature of the said inven--
tion and in what manner the same is to be performed I declare that what I
claim is ;-
1. In a lathe or similar machine a tool-bearing slide-carriage capable of being.
adjusted transversely to the working axis of the machine by means of a screw and
mounted on a reciprocating carriage receiving its movement from a connecting-rod
actuated by a crank on the upper end of a vertical shaft which rotates twice as
fast as the lathe spindle this vertical shaft being adjustable transversely the frame
or bearings supporting it being movable in guides on the lathe-carriage and
receiving movement from a horizontal counter-shaft on which may slide longitu-
dinally a bevel-pinion transmitting motion from the horizontal shaft to the vertical.
shaft substantially as described.
2. In a lathe or similar machine a ring or circular frame on which are mounted.
three rollers at angles of 120° apart carrying a hoop to be fitted on the tun these
rollers being radially adjustable in order that they may be arranged to accommodate-
tuns of different diameters substantially as described.
3. In a lathe or similar machine the combination and arrangement of parts.
constituting the complete tool operating or controlling mechanism substantially as.
described and illustrated in the accompanying drawings.

page_text: 4. The combination and arrangement of parts constituting the complete crozing
or chimb-notching lathe or machine substantially as described and illustrated in
the accompanying drawings.
Dadahin 20th
A 1000
BOULT & WADE,
Agents for the Applicant.