A TOOL TO REPLACE FILES AND RASPS
Year: 1884

page_text: PROVISIONAL SPECIFICATION,
I CARL LEHOFER, 215 Long Lane, Bermondsey, London S.E in the county of
Surrey, Agent for Plumbago Mines, do hereby declare the nature of the invention
for A TOOL TO REPLACE FILES AND RASPS" comunicated to me by Franz Podany.
114 Hauptstrasse, Hernals, Vienna, Austria, Wood-mosaic manufacturer to be as
follows:
This tool, which I propose to call "Faconneur" is constructed by uniting &
bundle of 30 to 50 saw blades with teeth on both sides like figure A as shown in
the adjoining drawing; manufactured in the ordinary way of saw-blades with 3 or
more quadrangular slits (figure C): in each blade, framed in by an iron frame with
a handle fastened together in the frame with 3 or more screws, which are passing
trough the refered slits in the blades as figure B. The whole forms now one body
with straight saw-teeth lines giving the "Faconneur" the appearance of a thick
saw (fig. A.) with all ends on the straight line: (mn): in the frame.
The striking manner and the principal point of the invention now is to turn tho
"Faconneur from the appearance of a thik saw into a fine or coarse file or rasp
for which use it is principaly invented with anny amount of sharp teeth representing
cither file or rasp; this is done by displacing the body of saws to the curved
line(): as it is shown in fig B, this is to be performed by easying the screws
allowing the blades to get loose while a slight knok on the handle on anny hard
object will place every blade on the curved line: (y): then fasten the screws again
and the "faconneur" is ready for use.
The construction of the "faconneur" is done in the following way:
Shorten, or file off several blades on one end and make 4 different lengths and
make 4 equal lots.
No I let be full length, No II take off of one tooth length, No III take off '/
of one tooth length, No IV take off 3 of one tooth length. Then put the blades
together in the following manner: take one blade from No I take one blade
from No II, take one blade from No III and take one blade from N° IV, and take
again and again in the same manner untill the set from 30 to 50 blades is
completed.

page_text: This manupulation continues by taking or filing off instead 1 ½ or %, only
¼ % % * % from each of a tooth length, which enables to produco in this
manner a surface from the roughest to the finest.
05
The advantages of the Faconneur are the following: Any file or rasp looses by
bis resharpening all consistence and will last after the procedure only a short time.
The faconneur is according to his construction not liable to alter his edge as it is
the case with the file or rasp particularly as the number of the teeth is so enorme,
that the use of it will hardly interfere with the wear, because the same will last as
long as the theeth are not cut down below the slits. Is a common file or rasp
stump, and has to be resharpened, so will the latter last only a short time. The
Faconneur can be sharpened by any workman, which is done in the following way :
Easy the screws a little allowing the blades to be loose the workman has simply to
allow the blades to straighten themselfes at the lines: (m-n): fig B. All teeth
will now be in one straight line, then fasten the screws and sharpen the whole line
in the ordinary way.
This done, the workman has only to place the blades back to the curved line
again and fasten the screws again and the faconneur is ready for use, without it is
further necesary of hardening it again.
The faconneur can be made to any form either convex or concave by cutting
cross slits in the blades fig I.):, besides the slits in the long and quadrangular way.
The cross slits are enlarged towards the centre of the bladebundle, because these
in the centre resting blades have to be allowed to be displaced wider then these
laying on the outer line of both sides in order to create the half round form
(convex or concave).
For Iron or Wood turners will the faconneur require the form and construction
of fig D and can then be used like any other turning tool for turning Iron, Wood
and other metals, and has the, samo advantages as the Faconneur replacing the file
or rasp.:
i
These above named tools, called, the "Faconneur" can be accomodated and
constructed to any size and requirement after the system allready described, and
may be used by steam or hand power,

page_text: . ..
;,
I CARL LEHOFER (215 Long Lane) 40 Grange Road Bermondsey, London S.E.
in the county of Surrey, Agent for Plumbago Mines do hereby declare the nature
of the invention for "A TOOL TO REPLACE FILES AND RASPS," communicated to me
by Franz Podany 114 Hauptstrasse, Hernals, Vienna, Austria Wood Mosaic manu-
facturer and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement (with reference to
the drawings sent with the provisional Specification) :-
:-
.2
This tool which I propose to call "Façonneur" is constructed by uniting a
bundle of 30. to 50 saw blades with teeth on both sides like figure A as shown in
the adjoining drawing; manufactured in the ordinary way of sawblades with 3 or
more quadrangular slits (figure C): in each blade, framed in by an iron frame with
a handle fastened together in the frame with 3 or more screws, which are passing
trough the refered slits in the blades as figure B.
The whole forms now one body with straight saw teeth lines giving the
"Façonneur" the appearance of a thick saw (fig. A) with all ends on the straight
line (mn) in the frame. The striking manner and the prinipal point of the
invention now is to turn the Façonneur" from the appearance of a thick saw
into a fine or coarse file or rasp for which use it is principaly invented with any
amount of sharp teeth representing either file or rasp; this is done by displacing
the body of saws to the curved line (y): as it is shown in fig B, this is to be
performed by easying the screws allowing the blades to get loose while a slight
knok on the bandle on any hard object will place every blade on the curved
line (y); then fasten the screws again and the "Façonneur" is ready for use.
The construction of the "façonneur" is done in the following way:
"Shorten or
file off several blades on one end and make 4 different longth and make 4
equal lots.
N° I. let be full length, No II take off 1½ of one tooth length, N° III take off 1/
of one tooth length, N° IV take off 3 of one tooth length. Then put the blades
together in the following manner: "take one blade from N° I, take one blade
from No II, take one blade from N° III and take one from N° IV and take again
and again in the same manner untill the set from 30 to 50 blades is completed.
This manipulation continues by taking or filing off instead / or / only
¼ % % %% from each of a tooth length, which enables to produces in this
manner a surface from the roughest to the finest.
The advantages of the "Façonneur" are the following: Any file or rasp looses
by his resharping all consistence and will last after the procedure only a short time.
The "façonneur" is according to his construction not liable to alter his edge as it
is the case with the file or rasp particularly as the number of the teeth is so enorme,
that the use of it will hardly interfere with the wear because the same will last as
long as the teeth are not cut down below the slits. Is a common file or rasp
stump, and has to be resharpened, so will the latter last only a short time.
The "Façonneur" can be sharpened by any workman which is done in the
following way Easy the screws a little allowing the blades to be loose, the work-
man has simply to allow the blades to straigthen themselfes at the lines 1 (m-n)

page_text: fig. B. All teeth will now be in one straigth line; then fasten the screws and
sharpen the whole line in the ordinary way.
This done, the workman has only to place the blades back to the curved line
again and fasten the screws again and the "façonneur" is ready for use, without
it is further necesary of hardening it again.
The "façonneur" can be made to any form either convex or concave by cutting
cross slits in the blades (fig I.) besides the slits in the long and quadrangular way.
The cross slits are enlarged towards the centre of the bladebundle, because these in
the centre resting blades have to be allowed to be displaced wider then these laying
on the outer line of both sides in order to create the half round form (convex or
concave).
For Iron and Wood turners will the "façonneur" require the form and con-
struction of fig D and can then be used like any other turning tool for turning
Wood Iron, and other metals, and has the same advantages as the "façonneur
replacing the file or rasp. These above named tools, called the Faconneur'
accomodated and constructed to any size and requirement after the system allready
described and may be used by steam or hand power.
can be
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I hereby declaire that;
what I claime is
+
"The combination of steel blades, toothed on two sides like sawblades as described
for rasping or filing metal or wood to be worked by hand or by power.