Paper, and the like.
Year: 1889

page_text: Date of Application, 25th Feb., 1889
Specification Accepted, 13th Apr., 1889
Paper, and the like.
I, ERNST TIETZE of the City of Breslau in the Kingdom of Prussia, German
Empire Engineer, 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 :-
My invention relates to a machine for stamping and perforating any class of
suitable metal or material which it is desired should be thus treated and prepared
whether for purposes of decoration or utility. Among the many applications of my
machine is for instance that of perforating metal plates such as are used in connection
with burners for Paraffine lamps and that of stamping fancy or other designs on
metal leather, paper and the like.
The manner in which I carry my invention into effect is illustrated in the
drawings herewith, Fig. 1 being an end view and Fig. 2 a side view of the machine.
The machine consists of the following parts, a foundation A supports the necessary
pedestals such as B & C, the forner carrying the driving shaft a, on the one end of
which is fixed the driving pulley, or, in cases where the machine has to be worked by
hand, a crank. On the other end of the said shaft is a spur wheel c which is geared
together with the spur wheel e fixed on shaft d. The shaft d resting in bearings
supported by the pedestals B & C carries the perforating or stamping roller w. which I
generally make of hard metal such as steel and the surface of which is provided
with elevated designs and the like, corresponding with the designs to be impressed
or cut out.
This roller w is adjustable by means of the two set screws for in some other
convenient manner and runs inside the proportionally large wheel D, with which it is
eccentric, and which is supported on two guide rollers g and k and further steadied by
the two rollers h and i.
The inside of this large wheel D is the foundation against which the stamping
roller w works, and is lined with a layer m of some soft metal or other suitable com-
position. An adjustable guide and feed roller I also runs inside the wheel D. The

page_text: scraper o and the pressure roller are provided for the purpose of removing any
particles adhering to, and for smoothing the impressions made in the soft metal
composition. Of such scrapers or knives and rollers several may be employed, and I
desire also to point out that, although a composition of metal will generally be
found most serviceable, other compositions might be used so long as they answer the
purpose in view.
The working of the machine is as follows:-The driving shaft a being turned,
whether by hand or other power, the roller w is set in motion on account of the
spur-wheels e on its spindle or shaft being geared with the spur-wheel b on the
driving shaft. The friction of the roller w against the wheel D causes the latter
to revolve as well as the various guide and pressure rollers with which it is in
contact.
The plates to be stamped, whether metal, leather, cloth, paper etc. are put under the
roller and thereby guided to the stamping roller w passing between that and the
soft metal composition inside the wheel D, and are thus impressed or perforated in
accordance with the manner in which the mantle or surface of the stamping roller w
has been prepared. By the position of the various parts as shewn in the drawings
the wheel D would move in the direction of the arrow.
The internal part of the wheel D being lined with some soft composition the surface
of the stamping roller w is prevented from becoming damaged and the impressions
made in the soft composition are removed to a great extent by means of the knife o
and the pressure roller v.
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 :-
A machine for stamping and perforating consisting essentially of a wheel D (lined
on its inside with a soft metal or other composition and supported by guide rollers)
a stamping roller w and a feeding roller 1. Substantially in the manner as and for
the purposes described, and substantially as shewn in the drawings.