A New or Improved File or Binder for Letters, Periodicals, Tissues, Fabrics, and the like.
Year: 1892

page_text: Date of Application, 22nd Dec., 1892-Accepted, 28th Jan., 1893
COMPLETE SPECIFICATION.
A New or Improved File or Binder for Letters, Periodicals, Tissues,
Fabrics, and the like.
I, FRANK DAVALL, of 5 Albany Road, Stroud Green, in the County of
Middlesex, 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 new or improved file or binder for letters, periodicals,
tissues, fabrics and the like, that is to say for any sufficiently coherent materials
existing in the form of sheets or plates, and capable of being readily perforated
by a knife edge.
In the accompanying sheet of drawings
Figure 1 is a side view, and in its open position, of what I shall hereinafter for
the purposes of this Specification term the brooch-piece.
Figures 2, 3 and 4 are respectively a side, front, and perspective view of the same
in its closed position.
Figure 5 is a view of my file or binder in use.
In these figures similar letters of reference indicate similar parts.
In these figures A is the brooch-piece consisting essentially of two parts, namely
a blade B and a bow C. The blade, which is preferably of strong tempered steel,
has a sharp cutting edge at its free extremity b. The bow which is also
preferably of steel, is made from a piece of strip folded in two and doubled upon
itself at the middle c where it is cut away and bent over a pin to form a hinge.
The bow is also bent as shown at the parts c¹ and c. At the part c³ a rivet, shown
in Figures 1 to 4, is employed to keep the two parts of the strip in close contact.
The inner part of the strip extends slightly beyond the outer part for the purpose
of enabling the blade to be more easily kept in the closed position.
In addition to the two essential parts mentioned I sometimes attach a ring D to
the bow by means of a rivet or other convenient fastening. The function of the
said ring is to enable the brooch-piece with the sheets or plates which it may be
holding to be hung on a nail or upon the hanger E. This hanger is made from
a piece of stout wire bent into a loop e at the centre and turned up slightly at the
ends e e¹.
To use my invention all that is necessary is to thrust the pointed blade through
the sheets or plates so that these become skewered so to speak upon the said blade
and then to turn the blade round its hinge into the closed position, snapping the
edge of the blade over the free extremity of the outer part of the strip of the bow.
The inner part of the strip projecting beyond the outer, the blade does not pass
beyond it in its closing journey but remains gripped between the two parts of the
strip as is shown in Figure 1. If the sheets or plates be small, such for example as
cards or pieces of small note paper, then a single brooch-piece will suffice and a
hanger may be dispensed with. If however the sheets be large then two or more
brooches may be employed preferably strung upon a hanger as shown in Figure 5,
the number of brooch-pieces and the length of the hanger varying with the
length of that side of the sheet which is held by the brooch-pieces.
To open the brooch-piece all that is necessary is to pull the blade outwards by
means of the finger and thumb, the resilient nature of the bow enabling this to be
done easily.
I have hereinbefore spoken of the bow as being constructed of a single strip
doubled in two. It will be obvious that without departing from my invention
the bow might be constructed of separate strips rivetted together; and that

page_text: the groove which retains the free end of the blade might be in a solid piece of
metal instead of between two pieces of strip as shown in the figures.
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
1. The new or improved file or binder substantially as set forth.
2. The brooch-piece substantially as set forth with reference to, Figures. 1, 2, 3
and 4.
3. The combination of the blade B. and bow C substantially as set forth.
4. The specific construction of bow set forth with reference to Figure 1 to 4.
5. The means for retaining the free end of the blade in its closed position
substantially as set forth.
Dated this 22nd day of December 1000
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