Improvements in Tin or Analogous Hollow Ware and in the Apparatus, Employed in the Manufacture thereof.
Year: 1889

page_text: Date of Application, 19th Sept., 1889-Accepted, 19th Oct., 1889.
COMPLETE SPECIFICATION.
Improvements in Tin or Analogous Hollow Ware and in the
Apparatus, Employed in the Manufacture thereof.
I, CARL TELLERING of Beurath, in the Empire of Germany, 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 :-
It is a known fact that up to the present tinware such as cans, boxes, preserve tins
and the like has been produced by soldering or rivetting the edges of pieces of sheet
inetal cut in the desired form, or by folding the edges and flattening the seam and
then introducing the lid or bottom in the usual manner. In addition to this method
smaller articles can be stamped out but this is restricted to articles of cylindrical or
slightly conical form. This latter method however generally requires more time as the
form must be given or imparted gradually and the cost of the necessary apparatus is
rather expensive.
The articles manufactured in accordance with the first method have all a longitudinal
seam which is often very disadvantageous in the further working and finishing of the
article for the different purposes and is very detrimental to the appearance of the
article. For instance if such an article is enamelled or lacquered it will be found
that the coating applied in any desired or convenient manner, will on the seam
never look so well as on the other smooth places of the article. In fact on the
seam the coating will always appear uneven, unfinished, blistered and porous notwith-
standing all care in applying the coating.
The object of the present invention is to remedy these defects in the manufacture of
the above mentioned articles and the invention is based on the employment of a
method, not hitherto used for the manufacture of tin-ware, by means of which it will
be possible to give the articles with a coating of white enamel or lacquer the perfect.
appearance of china or porcelain with a perfectly smooth surface.
This method, consists in forming thin hollow articles of any desired form by
treating more or less cylindrical previously welded rings of small diameter in a rolling
mill and then finishing the article by the introduction of the lid or bottom. The said
rings may be hoop iron the ends of each length of which are welded together; or
short pieces of welded tubes may be used.
In the accompanying, drawings are represented two modifications of rolling
machines adapted for the manufacture of the above mentioned articles from previously
welded rings. The two machines represented differ principally in the fact that in one
the upper roller is driven and the lower one is vertically adjustable, whilst in the other
the lower roller is driven and the upper one is adjustable.
Fig. 1 is a vertical section and Fig, 2 the corresponding front elevation of one
form of the above mentioned machines. A, A¹ are two uprights mounted on the
same bed plate or foundation and connected at their upper end by a cross piece B
provided in front with a projecting arm. In this frame are mounted two rollers wowo'
for.rolling the requisite articles, in such a manner that the upper roller is journailed in
a rigid bearing whilst the lower one is vertically adjustable.
One journal of the upper roller w that is to say the roller that is driven is mounted
in the cross piece B. and the other journal in the projecting arm B of the said cross
piece. The lower roller wo or the one which receives the hot ring or the ring to be
operated upon which ring is rotated between the rollers by friction, is journaled in a
slide vertically adjustable between the uprights A A¹. This slide is raised or
lowered by means of an eccentric or by any other suitable means for the purpose
of producing the necessary pressure for the rolling of the metal. This raising or
lowering of the lower roller may be effected either by hand or by machinery.
If it is to be done by machinery the eccentric z may be moved by actuating a pinion a

page_text: mounted on its shaft by a rack formed on the piston rod of a hydraulic or steam
cylinder and effecting in this manner the raising or lowering of the slide by
the movement of the eccentric .r. It is in this manner easy to let the lower roller
rotate with the upper one with a perfectly constant pressure.
One side of the sliding frame C is also adjustable or movable laterally in
addition to being adjustable vertically and to this end the part D of the said sliding
frame is formed preferably rectangular and is guided in grooves in the frame C. The
horizontal arm of the part D is provided with teeth with which gears. a pinion y
mounted in the lower part of the frame C and actuated by means of a crank
handle or equivalent. By these means one of the bearings of the roller can be
moved laterally so as to leave one of the journals of the said roller perfectly free.
In this laterally removed position of the part D it is easy to slip a hot iron ring
onto the roller for the purpose of rolling it out after the part D is returned into its
normal position. The other journal of the roller w' is provided with two collars so
that this journal is laterally immovable in the frame C.
The modification of the machine is represented in Figs. 3 to 6 of which Fig. 3 is a
side elevation, Fig. 4a front elevation partly in section, Fig. 5 a plan and Fig. 6 a
horizontal section on line -y of Fig. 4.
A A' are two uprights or standards fixed on the same bed plate or foundation
and between which is mounted the upper roller w journalled in a balanced or pivotted
beam K. This beam is constructed so that the end opposite the roller w is the heavier
and thus tends to remove the upper roller w from the lower one. el. To produce
however the pressure necessary for the rolling out of the rings, the eccentrica is
placed under the heavier end of the beam K. This eccentric is mounted on a shaft
journaled in the uprights E F and is actuated either by hand or by machinery
by means of a rack and pinion and piston as hereinbefore described with reference
to Figs. 1 and 2.
The lower roller or the one which receives the ring to be rolled is journalled in
two uprights (fixed to the bed plate or foundation. To permit the hot ring to be
slipped on the roller to one part 1 of the frame C is formed rectangular and is guided
in grooves in C; the horizontal arm of the part D is provided with teeth with which
gears a pinion y mounted in the lower part of the frame and actuated by means of a
crank handle or equivalent. By these means one of the bearings of the roller w' can
easily be moved laterally so as to leave one of the journals free for the purpose of
slipping on or taking off the ring. After the part D is returned to its normal
position and the upper. roller properly adjusted the rolling of the metal ring can
take place.
It will be easily understood that this method of manufacturing thin hollow bodies
or articles without longitudinal seams only requires a very simple manipulation and
that the apparatus can be worked very quickly. By introducing conical rollers or
rollers of other shape it is moreover possible to give the article or be rolled a conical
or other desired shape or form, and if such articles after the introduction of the
bottom and lid are coated with a suitable coating, they will present a perfectly smooth
appearance pleasing to the eye.
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. The method of manufacturing thin articles of sheet metal of any desired form
and without a bottom, consisting in rolling out more or less cylindrical and previously
welded rings of small diameter and suitable thickness in a rolling machine consisting
essentially of two rollers such as wand w¹ arranged in such a manner that the rings
can be fed on to one of the rollers from one end substantially as herein described.
2. In apparatus for manufacturing thin articles of sheet metal a rolling press
consisting essentially of two uprights or standards such as A A¹ connected by a cross
piece such as B B' between which standards are mounted two rollers such as wo wo in
such a manner that the bearings of the roller we are rigid whilst the other roller wis

page_text: mounted in a frame such as ( D which permits the said roller to be adjusted vertically
either by hand or by machinery by means of an eccentric such as c and leaves one
journal of the said roller free for the purpose of introducing the ring to be rolled, by
forming the part D of the frame CD rectangular, the longer horizontal arm of this
part D sliding laterally in the frame (and being provided with teeth with which gears
a pinion y actuated by hand or otherwise substantially as herein described and
illustrated in the accompanying drawings.
3. In apparatus for manufacturing hollow tin and analogous metal articles a pivotted
beam such as K mounted in two standards such as A A' and carrying a roller such as
w which beam can be moved upon its axis of oscillation by means of an eccentric
such as actuated by hand or otherwise in combination with a roller such as 10'
mounted in frame such as C and one journal of which is mounted in a rectangular
sliding piece such as D which is laterally movable in the frame C by means of a rack
and a pinion y for the purpose of enabling the rings to be rolled to be fed from the
side of the machine when one of the journals of the rollers is left free substantially as
herein described and illustrated in the accompanying drawings.
" 2
L1080
W. P. THOMPSON & BOULI,
Agents for the Applicant.