Improvements in Files and File Holders.
Year: 1898

page_text: Improvements in Files and File Holders.
We, DAVID GLARDON-JAQUET, Manufacturer, and LOUIS BERGER, Merchant, both
of G, Place Saint Francois, Lausanne, in the Republic of Switzerland, do hereby
declare the nature of this invention to be as follows:-
-
This invention relates to new and useful improvements in file holders applicable
to files of any and every kind and shape or dimensions and intended to greatly im-
prove the manufacture and cheapness of files as well as the use and handling of the
same by the workmen.
Our improved file holders are composed of a solid and rigid back-piece of suit-
able material, combined with one or more thin and flexible steel-blades having one
or both of their faces suitably cut, forming the file proper and provided with suit-
able devices for securing and stretching the said blade or blades to and on the
said back-piece.
The invention further comprises suitable means for securing and stretching the
files proper to the back-piece, and further a suitable handle-device for large files
allowing the workman to operate the file with both his hands.
In carrying our invention into practice the file holder is composed of a solid
piece of suitable material, the top end of which is formed like a fork and shaped so
as to have an adjustable sliding piece guided between the two branches of the fork.
A screw passing through the said sliding piece and bearing with its free end against
the bottom portion of the fork, is intended to suitably set the adjustable or sliding
piece within the latter.
On each face of the solid piece which will be called the "back," there are fixed,
near the portion intended to be fixed in a wooden handle, one or more suitable
projections, engaging openings in the lower portion of the blade or blades which
constitute the file proper.
On each face of the adjustable piece there are provided one or more suitable
projections, engaging openings with which the top portion of the said blades are
provided.
Now it will readily be understood that, according to the construction above
described, the two blades or files will be stretched and closely applied to each face
of the "back" when the hereinbefore mentioned screw is suitably turned so as
to force the sliding piece to the top of the fork piece.
In one form of holder the blades are placed in a suitable sinking or depression
in view of having their longitudinal edges suitably supported against lateral strain.
In another form of construction the fork of the back is closed at its top hv
means of a cross-bar and the screw bears with its head upon this cross-bar instead
of having its free end bearing on the bottom of the fork as herein before set forth.
In this construction only one blade is fixed to the face of the back in the same

page_text: way as it has been described with reference to the first form of construction, the
other face of the said back being provided at its top portion with a suitable button
or handle which is intended to be grasped by the left hand of the workman whilst
the usual handle is grasped by his right hand.
The handle may be of any suitable shape or configuration; it may be fixed
either to the sliding piece, or to the back or to the cross-piece.
In cases where a left-handed-handle is to be used with double-faced files, it may
be fixed to the back by means of lateral connexions so as to adapt it to be used on
either face of the file.
In applying our invention to small files which cannot be constructed in the man-
ner above described we proceed in the following manner.
A projection is fixed to the blade or file proper and engages with an opening
which is provided in the back.
A screw, with a conical head, is excentrically passed through a conical opening
in the blade and screwed into the back. The distances of the said parts from each
other are so calculated that, when screwing the screw down into the back a strain
is given to the blade, the said blade being thereby firmly fixed to and closely
applied against the face of the back.
The blades are interchangeable; and they may be differently cut on their faces,
thus allowing a double-faced file holder to present four different degrees of cuts.
Dated this 17th dore of Manch 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings London, W.C.,
Agents for the Applicants.
аник не помог.
We, DAVID GLARDON-JAQUET, Manufacturer, and LOUIS BERGER, Merchant, both
of 6, Place Saint Fran ois, Lausanne, in the Republic of Switzerland, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to some new and useful improvements in file holders
applicable to files of any and every kind and shape or dimensions and intended to
greatly improve the manufacture and cheapness of files as well as the use and
handling of the same by the workmen.
Our improved file holders are composed of a solid and rigid back-piece of suit-
able material, combined with one or more thin flexible steel-blades having one
or both of their faces suitably cut, forming the file proper and provided with suit-
able devices for securing and stretching the said blade or blades to and on the
said back-piece.
The invention further comprises suitable means for securing and stretching the
files proper to the back-piece and further a suitable handle-device for large files
allowing the workman to use the file with both his hands.
In the accompanying drawings:
Figure 1 is a front view of one form of construction of our improved files.
Figure 2 is a longitudinal section taken upon the line ry of Figure 1.

page_text: Figure 3 is a similar section of a somewhat different form of construction of
our files.
Figure 4 is a back-view of the top-portion of the file shown in Figure 3, the
handle D being cut off.
Figure 5 is a front view.
Figure 6 a section upon the line uw of Figure 5, and
Figure 7 a back-view of another construction of our improved files.
Figure 8 shows a modified construction of the handle D of Figure 3.
In all the figures the same letters of reference refer to the same parts.
In the construction shown in Figures 1 and 2 the file holder is composed of a
solid piece of suitable material A, the top end of which is formed like a fork and
shaped so as to have an adjustable sliding piece A¹ guided between the two
branches of the fork. A screw C screwed through the said sliding piece A¹ and
bearing with its free end against the bottom portion of the fork, is intended to
suitably set the adjustable or sliding piece Af within the latter.
On each face of the piece A, which will be called the "back," there are affixed,
near the portion intended to be fixed in a wooden handle, one or more suitable
projections a¹, engaging the openings in the lower portion of the blade or
blades B, which constitute the file proper.
On each face of the adjustable piece A' there are provided one or more suitable
projections a², engaging openings 62 with which the top portion of the said blades B
are provided.
Now it will readily be understood, that, according to the construction above
described, the two blades or files proper B, will be stretched and closely applied to
each face of the "back" A when the screw C is turned so as to move the sliding
piece A to the top of the fork.
In Figures 1 and 2 the blades B are shown placed in a suitable sinking or
depression A with a view to having their longitudinal edges suitably supported
against lateral strain.
In the construction shown in Figures 3 and 4, the fork of the back A is closed
at its top by means of a cross-bar A2 and the screw C bears with its head upon this
cross-bar instead of having its free end bearing on the bottom of the fork as shown
in Figures 1 and 2.
In the construction shown in Figures 3 and 4 there is only one blade B which is
fixed to the face of the back A in the same way as has been described with refer-
ence to Figures 1 and 2, the other face of the said back A being provided at its
top portion with a suitable button or handle D which is intended to be grasped by
the left hand of the workman whilst the usual handle D is grasped by his right
hand.
The handle D may be of any suitable shape or configuration; it may be fixed
either to the sliding piece A¹, or to the back A or to the cross-piece A².
In cases where a left-hand-handle D is to be used with double-faced files, it
may be fixed to the back A by means of lateral connexions as shown in Figure S
so as to adapt it to be used on either face of the file.
Figures 5 to 7 show how our invention may be applied to small files which can-
not be constructed in the manner shown by the other figures of the drawing.
C
In this construction a projection a¹ is fixed to the blade or file proper Bas
shown in Figure 6 and engages with an opening b₁ which is provided in the back A.
A screw having a conical head, is eccentrically passed through a conical open-
ing in the blade B and screwed into the back A. The distance of the said parts
from each other are so regulated that, when screwing the screw e down into
the back A stress is applied to the blade B in the direction of the arrow shown in
Figure 5, the said blade being thereby firmly fixed to and closely applied against
the face of the piece A.
The blades B are interchangeable; and may be differently cut on their faces thus
allowing a double-faced file to present four different degrees of cuts.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1
1. In files of any kind or configuration, the combination of a solid back of suit-
able material, with one or more steel-blades constituting the files proper and with
suitable means for adjustably fixing the said blades to the back.
2. In files of any kind or configuration, the combination of a back having a
forked end in which slides an adjustable piece A¹, a setting-screw C, one or more
suitable projections a fixed to the back A and one or more suitable projections a²
fixed to the adjustable piece A¹, with one or more blades B having one or more
openings and one or more openings 62 in which engage the projections a¹ and aª²
respectively, substantially as shown and described.
3. In files of any kind or configuration a back A provided with one or more
sinkings or depressions A³ in which the blade or blades B are engaged with a
view to having their lateral edges suitably supported, substantially as shown and
described.
4. In files of any kind or configuration having a back A and an adjustable
file blade B, the combination of the back A with a screw c having a conical head
engaging the conical edge of an opening 62 of the said blade B with a view to
having the latter suitably stretched and applied on the back A, substantially as
shown and described.
5. In files of any kind or configuration a left-hand-handle D fixed to the top of
the file.
6. In files of any kind or configuration a left-hand-handle D connected to the
top of the file by means of suitable connexions d with the object of being adapted
to be applied on either side of the file, substantially as shown and described with
reference to Figure 8.
Dated this 16th day of Decomber LXUX
amber
HASELTINE, LAKE & Co.,
45, Southampton Buildings London, W.C.,
Agents for the Applicants.