Improvements in Cutting, Scraping, or Grinding Tools or Rimers.
Year: 1892

page_text: Date of Application. 27th Sept., 1892-Accepted, 26th Nov., 1892
COMPLETE SPECIFICATION.
Improvements in Cutting, Scraping, or Grinding Tools or Rimers.
I, JAKOB GEORG BOTT, of Esslingen, Germany, 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 :-
The improved rimer, scraper, or cutting tool herein described consists of two
or more thin plates of sheet steel, (or other suitable metal for the material to be
operated upon) riveted, brazed, soldered or otherwise secured together, and usually
with intervening spaces between the cutting edges. The outline of the tool, or of
the plates or blades forming the tool may be rectangular, curved or of any form
suited to the work it is intended for.
In the accompanying drawings, the sections Figs. 2, 3, 4, 5, 6, and 9 represent
two or more plates riveted or otherwise secured together to build up a tapered
rimer, shown in elevation, below the section, in Fig. 9. In these figures,
Fig. 1 represents a tool made of a single plate of sheet metal a, with opposite
cutting edges b, and a strengthening rib d brazed or otherwise secured to each
side of a.
Fig. 2 shows a tool formed of two plates a bent and brazed together at the
centre, or produced by forging and shaping, with cutting edges b as before.
Fig. 3 is a tool composed of two bent blades riveted together in the centre, and
also having four cutting edges, as in Fig. 2.
Fig. 4 is a tool composed of two bent plates riveted to a central flat plate and
having six cutting edges b.
Fig. 5 shows a tool composed of one flat blade and three plates on each side
thereof bent at varying angles, and riveted together centrally to give fourteen
cutting edges b.
In Fig. 6, five blades a are riveted together, and the whole bent tangentially to
form ten cutting edges; while the section of Fig. 9 also shows ten cutting edges on
plates arranged radially.
In the sections shown in Figs. 7 and 8, flat plates only are shown riveted together
more or less closely, as shown, and of a different cross section; and it is to be noted
that any required number of plates may be built up in one or other of the methods
indicated.
The several blades are secured together, as already indicated, and formed with a
reduction in width at one end for the purpose of receiving a suitable handle, (as
shown by the elevations in Figs. 8 and 9) but the manner of fitting the handles on
is not shown, as many known ways can be adopted for this purpose. The blades
are hardened to suit the work or material for which the tools are required, and the
edges of all the plates are ground to a fine cutting edge, and of the outline required,
which produces a more durable and smoother cutting edge than can be given by
a file.
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. A tool consisting of two or more strips of sheet metal a secured together by
brazing or riveting together and ground upon their edges b in the manner and for
the purpose shown and described with reference to Figs. 3, 4, 5, 6, 7, 8 and 9.
2. A tool forged and shaped from the solid, and with thin cutting edges ỗ ground

page_text: and formed in the manner and for the purpose herein shown and described with
reference to Fig. 2.
Dated this 27th day of September 1892.
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.