Improvements in Means for Fastening the Parts of Cardboard Boxes and for like Purposes.
Year: 1898

page_text: Date of Application, 13th Sept., 1898-Accepted, 28th Jan., 1899
COMPLETE SPECIFICATION,
Improvements in Means for Fastening the Parts of Cardboard Boxes
and for like Purposes.
(A communication from FRANZ KAULFERSCH, of Töpfergasse 41, Bautzen,
Germany, Manager).
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
This invention relates to rivets or fastenings such as are used for fastening
together the parts of card-board boxes and for similar purposes.
The invention consists more particularly in making the teeth or points or pro-
jections of the rivet out of the central portion of the piece of sheet metal forming
the rivet so that the body of the rivet is constituted only by a narrow annular
strip, said rivet being made circular, oval, square, star or any other desired shape.
The object of the invention is, first, to effect a saving in material compared to
the well-known rivets with teeth on the outer edge, in which there is much waste,
and further to obtain a better penetration into the pieces of card-board or other
material to be fastened together, than is the case with the ordinary rivets, in which,
owing to the whole body of the rivet resting on the material, such penetration
cannot be obtained, in consequence of which the covers on the card-board boxes
do not fit tightly. Finally owing to the rivets when formed being connected
together in one strip, it is much easier to manufacture them and to secure them
on, and a better appearance is obtained.
These rivets are manufactured in such a manner that at first the sheet metal
piece is stamped out so as to obtain strips of the desired outer shape of the rivets
connected together at one point, and then the teeth or points angular or rounded,
are stamped or punched out from the central portion of the rivet, generally in
sets of two or more, whereby angular or round holes are formed. When one set
of four teeth is made, two of them are generally placed in the longitudinal and
two in the transverse direction of the strip, but of course all the teeth can be
in either a transverse or longitudinal position.
In the accompanying sheet of drawings are shown examples of various forms
of fasteners formed in strips according to this invention, a representing the rivets
and the teeth.
Figure 1 is a plan view of a series of star shaped rivets connected together at
their ends;
Figure 2 is a side elevation of same:
Figure 3 shows a single rivet on an enlarged scale in front elevation.
Figure 4 a double rivet in side elevation, as used for fastening corners of card-
board boxes:
Figure shows a strip of round rivets connected together:
Figure 6 shows a strip of oval rivets connected together:

page_text: Figure 7 shows a strip of square rivets connected together:
Figure 8 shows a strip of lozenge shaped rivets connected together:
Figures 9 to 12 show a strip of different forms of star-shaped rivets connected
together;
Figure 13 is a longitudinal section through a strip of connected rivets :
Figure 14 shows a cardboard box C with 4 rivets of different shapes and fixed
at the corners:
A special form of rivet is shown at a (Fig. 1-4) in which two teeth 6¹ of com-
paratively great length are produced by Z-shaped cuts these are particularly
suitable for fastening together thick pieces of card-board, leather or the like.
The teeth produced in this manner have a straight and an oblique side and thus
easily penetrate into the material to be fastened together.
These rivets can also be used with advantage as double rivets for securing the
edges of card-board boxes or the like (Figure 4). The described method of
manufacturing the rivets from a strip of sheet metal enables their outer shape to
be chosen so that each rivet a in the strip is connected to the next at only one
point so that they are readily separated one by one, or in short strips, when re-
quired for fastening the material.
Beside making the work much easier and quicker, these strips or rivets have
a much better appearance especially when used for connecting the corners of
card-board boxes.
Having now particularly described and ascertained the nature of this invention
as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is:
1. A fastener for card-board boxes or for like purposes, consisting of an annular
body of any desired shape with teeth or points formed on the under side, said
teeth being made from the central portion of the material.
2. A fastener such as is claimed in Claim 1 having only two teeth or points
formed by a Z shaped cut.
3. Fasteners such as are claimed in Claims 1 and 2 having only a single point
of connection between each so as to form a strip of two or more fasteners.
Dated this 13th day of September 1898.
BOULT & WADE,
Agents for the Applicant.