Improvements in the Method of Producing Casks from Sheet Metal, and Apparatus used therein.
Year: 1898

page_text: Date of Application, 7th June, 1898-Accepted, 24th Sept., 1898
COMPLETE SPECIFICATION
Improvements in the Method of Producing Casks from Sheet Metal,
and Apparatus used therein.
at
I, CARL WEBER, partner of the Firm Schwelmer Eisenwerk Muller & Co,
Schwelm, Westfalia, residing in Barmen, Germany, Grosse Friedrichstr, 1, Manu-
facturer, do hereby declare the nature of this invention and in what manner the
same 18 to be performed, to be particularly described and ascertained in and by
the following statement .-
My invention has for its object to produce tuns or casks from sheet metal by
lamination In this method I use two rollers the one which I call foundation
roller has the outer curved shape of a tun or cask The largest diameter of this
roller is somewhat smaller than the smallest diameter of the tun to be produced
in order to easily withdraw the latter from the foundation roller without taken
it to pieces
Along the outer contours of the foundation roller rotates one or two smaller
rollers which may be vaiably pressed against the foundation roller and which
I call working or formation rolleis
Generally both sets of rollers are driven with a velocity which 18 different
according to the material of which the cask 18 produced
The sheet metal is brought in form of a cylindrical case over the foundation
roller and then shaped by the small roller which for this purpose travels in
rotating from one side back over the middle of the foundation roller to the other
side and being pressed against the metal so that by and by the cylinder obtains
the curved convex form in being lengthened in the direction of the periphery so
that the diameter obtains in the middle the largest extension which is gradually
reduced to both ends, where the lengthening of the metal is alike null. It is of
no consequence whether the rollers are so arranged, that the foundation 1oller 18
made immovable and the formation roller rotates along the curved line of the
first roller as shown in Figure 1 on whether the foundation roller travels to and
fio ma curved plane and the formation roller rotates only Figure 2 The founda-
tion roller may be also moved in a straight line to and fio and the rotating
formation roller oscillates under pressure against the foundation roller as will be
seen from Figure 3 or the foundation roller receives an oscillating movement and
the formation rollers travels to and fio in being turned Fig 4.
I can also make the foundation roller as a hollow cylinder and shape the
sheet metal from the inner side to a cask by means of a roller which in turning
travels to and fro and presses variably against the metal as will be understood
from Figure 5.
The manner in which I prefer to carry my invention into effect is that pointed
out in Figure 1 and the contrivance which is correspondingly constructed is shown
in vertical section in Figure 6, and in a side elevation in Figure 7 Figure 8
illustrates a construction adapted to work in the manner as shown in Figure 5
representing a vertical section, Figure 9 is a plan of this modified device,
Figure 10 a side view thereof.

page_text: The construction and arrangement of the machine shown in Figures 6 and 7
1s as follows:
In the bed 1 of the machine is journalled the shaft 2 having fitted the fast and
loose pulley 3, 4 which are moved by a crossed belt 5 To the shaft 2 is keyed a
wheel 6 into which meshes a wheel 7 that 18 keyed to a shaft 8 This shaft is
carried by the standards 9, 10, 11 Between both latter posts is fastened to the
shaft 8 the foundation roller 12 which is provided at both sides with a disk the
one of which is screwed against the body of the roller in order to easily supply
and withdraw the working piece or finished ware respectively For this purpose
the post 11 may be also withdrawn It is provided with the lining 13 which by
means of a handle 14 is removed of the post so that the latter which is pivotally
secured to the bed 1 may be laid down, a bolt 15 engaging the post 11, holds it
in the upright position Its other end forms a' rack into which meshes a pinion 16,
a hand wheel 17 18 arranged to conveniently manipulate the bolt The foundation
roller 12 18 shaped like a cask as a glance on Figure 6 will show it receives the
cylindrical working piece of sheet metal which is operated by the formation
roller 19 that rotating and travelling to and fro along the surface of the roller 12
18 pressed against it so that the working piece is by and by shaped to a cask
For this purpose to the bed 1 18 cast a vertical frame 20 the inner and outer
surface of which corresponds in form with the curved surface of the roller 12
This bed serves as support and guide for a carriage 21 that is lengthwise moved
and parallel to the roller surface 12
The carriage 21 bears the downturned arms 22 in which is rotatably secured a
shaft 23 to which is keyed the formation roller 19 and one side a universal
Joint 24 which by means of a connection rod 25 engages a like joint 26 being fitted
to a shaft 27 Shaft 27 18 located in a bearing 28, it can move to and fro and
receives a revolving motion by a pinion 29 meshing with the wheel 7. In such
a manner the shaft 27 imparts rotation to the roller shaft 23 in either position of
the carriage
Now the movement of the carriage is carried out automatically in the following
manner.
The shaft 23 imparts motion to an upright spindle 32 turning it by means of
bevil gear 30, 31 in one direction and by reversing gear 39 in other direction,
after wheel 30 has been removed and wheel 39 brought in contact with wheel 31
which operation is done by hand by means of clutch 40 Spindle 32 turns by
means of worm gear 33, 34 a spindle 35 suitably secured to the carriage 21
Spindle 35 bears a pinion 36 which meshes with a curved rack 37 running parallel
to the surface of the foundation roller 12 so that it will easy be understood how
by the described means the self movement of the carriage in one or another way
18 obtained exactly parallel to the foundation roller 12 and that when forcing the
carriage down by the handle 41, which is only used to effect pressure the working
piece must be laminated in the shape prescribed by the foundation roller 12
The modified machine shown by Figures 8-10 is constructed as follows.
Upon the bed 54 of an ordinary lath is moved to and fro by means of a screw
threaded shaft 41' and nuts 42 a carriage 43, bearing in its upright arms 44 a
The foundation
shaft 45 to which is securely fastened the formation roller 46
roller 47 forming a hollow cylinder is carried by rollers 48 the upper ones
securing it in its side position and being fitted for this purpose with flanges 49
The rollers are turnably mounted on bolts 50 and shafts 51, respectively which
The boxes 52 are located in arms 53 cast to the
are Journalled in boxes 52
bed 54 The hollow roller 47 is provided with a gear 55 in which meshes a
pinion 56 keyed to a shaft 57 that is set in motion by any suitable gear
pinion 18 provided with a clutch 58 to set the cylinder in and out of motion as
required.
The
The cylinder 47 receives the working piece 581 which as before forms a cylinder 5
of sheet metal and being supported by the hollow roller 47 is laminated in the
cask form by the rotating roller 46 which is pressed with variable pressure against

page_text: the working piece
In the present example I press the cylinder 47 against the
roller 46
For this purpose the boxes 52 may be moved somewhat upwards in their slotted
bearings 481 The lower boxes 52 are connected by a bar 59 underneath of which
is arranged an excentric disk 60 which 18 loosely stuck on a bolt 61 Disk 60
18 provided with a chain wheel 62 that receives a revolving motion by a chain
wheel 63 situated on a shaft 64 which being suitably journalled left and right from
shaft 57 carries a bevil wheel 65 with which meshes a bevil wheel on shaft 57
so that by the chain gear described the excentrics 60 are turned From this it will
be understood that by the excentric disks 60 the hollow cylinder 18 raised and
lowered and the pressure executed on the working piece is thus varied according
to the shape into which it must be transformed The relative movements of the
excentrics 60 co-operating with the screw 40¹ 18 maintained by corresponding gear
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) A new method of laminating casks of a sheet metal cylinder consisting in
the arrangement and use of two rollers the one of which serving as support for
the working piece is shaped like a cask the other one forming a common small
roller both rollers are driven in such a manner that the roller shafts rotate in one
plane and that the angle which is formed by both shafts 18 like that angle which
forms the tangent at the respective rolling place of the cask shaped roller with its
axis as described and for the purpose set forth
2) A modified method of laminating casks from a sheet metal cylinder consist-
ing in the arrangement and use of a hollow cylinder serving as support and
receiving the working piece which 18 operated by a second small roller both
rollera being driven in such a manner that except the rotation movement imparted
to both rollers one of them travels along the working piece in being pressed against
it with variable pressure as described and for the purpose set forth
Dated this 2nd June 1808
CARL WEBER,
By A. Daumas,
Agent for Applicant.