A New or Improved Tool for Simultaneously Filing and Polishing or Burnishing.
Year: 1891

page_text: Date of Application, 13th May, 1891
Complete Specification Left, 1st Feb., 1892-Accepted, 5th Mar.. 1892
PROVISIONAL SPECIFICATION.
[Communicated from abroad by MÜLLER and SCHWEIZER, of Soleure, in
Switzerland, Manufacturers.]
A New or Improved Tool for Simultaneously Filing and Polishing
or Burnishing.
I, ERNEST DE PASS, of 78 Fleet Street in the City of London, Fellow of the
Institute of Patent Agents, do hereby declare the nature of this invention to be
as follows:-
The object of this invention is to provide a new or improved tool or cylindrical
file capable of working, at one and the same time, as a file, and as a polisher or
burnisher, the latter polishing or burnishing the cylindrical surface as produced
by the file on the rotating work as fast as the file produces said surface.
This will be best understood on reference to the accompanying drawing, in
which
Fig. 1 represents the cylindrical file and polisher at work.
Fig. 2 is a fragmentary view, from left to right of the file B, shown in partial
section in Fig. 1.
A is the work, say for instance the axis of a watch-mover, on which there
is to be formed a polished pivot A. The work A is fixed to the axis of a
lathe, or pivot lathe, and is supposed to rotate in the direction of the arrow a.
B is the cylindrical shaped file which is fixed to a rotary axis of the machine
or pivot lathe said axis being placed perpendicularly to and in the same plane as
the geometrical axis of the work. The file B, which rotates in the direction
indicated by the arrow b, is formed as a hollow cylinder the outer cylindrical
surface of which is grooved or striated, either as shown in the drawing with grooves
running parallelly to the geometrical axis of the cylindrical file B, or with worm
like grooves, the form of which is, in both cases, as shown in the face view of the
cylinder shaped file B in Fig. 2. B' is the stem of the file and is intended to be
fixed to an axis rotating perpendicularly to the axis of the work, and moved
laterally in the direction of the arrow e in the plane of said axis. The hollow
cylinder of the file B is provided with an annular flat surface B", and with a
spheroidal concavity or recess B. The flat surface B" constitutes the polisher
or burnisher, it is ground, smoothed or polished by any suitable means whatever
perfectly flat and the concavity B is produced by means of a grinding wheel
so as to ensure the annular face B₁ being maintained at a suitable width whenever
the said face B¹¹ is worn away by grinding or polishing.
Now, if this cylindrical shaped file B be turned in the direction shown by the
arrow b, and at same time, moved laterally in the direction shown by the arrow a,
the geometrical axis of B being moved parallelly to itself and in the plane in
which is placed the geometrical axis of the work A, the grooved or striated
cylindrical surface of the file B will cut out or rimmel the piece A so as to form
the pivot A' and the flat surface B" of the file B will slightly grind and perfectly
polish the cylindrical surface of said pivot A' as fast as the latter is formed by the
rimmelling action of the file B.
The pivot A will therefore be formed and polished by one and the same tool and
at one and the same operation.
1001

page_text: COMPLETE SPECIFICATION.
A New or Improved Tool for Simultaneously Filing and Polishing
or Burnishing.
I, ERNEST DE PASS, of 78 Fleet Street, in the City of London, Fellow of the
Chartered Institute of Patent Agents, 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, reference being had to the
drawings accompanying my Provisional Specification and to the letters and figures
marked thereon, that is to say :-
The object of this invention is to provide a new or improved tool or cylindrical
file capable of working at one and the same time as a file and as a polisher or
burnisher, the latter polishing or burnishing the cylindrical surface as produced
by the file on the rotating work as fast as the file produces said surface.
This will be best understood on reference to the drawing filed with the Provisional
Specification in which :-
Fig. 1 represents the cylindrical file and polisher at work; and
Fig. 2 is a fragmentary view, from left to right, of the file B shown in partial
section in Fig. 1.
A is the work, say for instance the axis of a watch-mover, on which there is
to be formed a polished pivot A¹. The work A is fixed to the axis of a lathe,
or pivot-lathe, and is supposed to rotate in the direction of the arrow a. B is
the cylindrically shaped file which is fixed to a rotary axis of the machine, or
pivot-lathe, said axis being placed perpendicularly to and in the same plane as the
geometrical axis of the work. The file B, which rotates in the direction indicated
by the arrow b, is formed as a hollow cylinder, the outer cylindrical surface of
which is grooved or striated, either, as shown in the drawings, with grooves running
parallelly to the geometrical axis of the cylindrical file B, or with worm-like
grooves, the form of which is, in both cases, as shown in the face view of the
cylindrically shaped file B in Fig. 2. B is the stem of the file and is intended to
be fixed to an axis rotating perpendicularly to the axis of the work A, and moved
laterally in the direction of the arrow c in the plane of said axis. The hollow
cylinder of the file B is provided with an annular flat surface B", and with a
spheroidal concavity or recess B. The flat surface B constitutes the polisher
or burnisher; it is ground, smoothed, or polished, by any suitable means whatever,
perfectly flat, and the concavity B is produced by means of a grinding wheel so
as to ensure the annular face B being maintained at a suitable width whenever the
said face B is worn away by grinding or polishing.
Now if this cylindrically shaped file B be turned in the direction shown by the
arrow band, at same time, moved laterally in the direction shown by the arrow a,
the geometrical axis of B being moved parallelly to itself, and in the plane in which
is placed the geometrical axis of the work A, the grooved or striated cylindrical
surface of the file B will cut out or rimmel the piece A so as to form the pivot A',
and the flat surface B" of the file B will slightly grind and perfectly polish the
cylindrical surface of said pivot A' as fast as the latter is formed by the rimmelling
action of the file B.
The pivot A will therefore be formed and polished by one and the same tool,
and at one and the same operation.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improved tool for simultaneously filing and polishing or burnishing,
substantially as described and shown.
2. The combination with a file B, the cylindrical surface of which is provided

page_text: with grooves running parallel to its axis, or with worm like grooves, of a flat
face B, ground, smoothed, or polished, and working as a polisher or burnisher
upon the cylindrical surface A' of the work A, as fast as the said cylindrical surface
is generated by the grooved or striated cylindrical file B, substantially as described
5 and shown with reference to the drawings.
1
TI
1000