A Device for Fastening Together Newspapers, Invoices, and other Loose Documents or Papers.
Year: 1890

page_text: Date of Application, 19th Aug., 1890
Complete Specification Left, 23rd Apr., 1891-Accepted 23rd May, 1891
PROVISIONAL SPECIFICATION.
A Device for Fastening Together Newspapers, Invoices, and other
Loose Documents or Papers.
I, Dr. CARL GRÜNZWEIG of Ludwigshafen-on-the-Rhine, Germany, do hereby
declare the nature of this invention to be as follows :—
This invention relates to a device for fastening together newspapers, invoices,
and other loose documents or papers, etc.; so that they can with facility be
separately removed without injury.
The invention, which will be described with reference to the accompanying
drawings, consists in a fastener in the form of a solid or hollow elastic shank a
(Figure 4) provided in its length with one or more hollow elastic buttons or
projections and at its lower end with a head c.
The papers, or other articles, to be fastened together, having been perforated,
the shank a is passed through them and the tension which is applied to the shank
in drawing it through the papers causes the elastic button 6 to disappear so that it
will pass through the perforation in the papers, etc., whereupon it will instantly
appear again as soon as the pull on the shank ceases. The documents are then
confined, as can be seen from Figure 1, between the projection b and the head c.
In order to remove the documents from the fastener, the head c is pulled so
that the elastic button can be drawn through the perforation exactly as before.
In Figure 2 the shank a is represented in its distended condition, the elastic
button 6 having disappeared in consequence of the pull exerted upon the shank.
The shank a in the drawing is shewn hollow, but it may be solid as above
stated. I do not confine myself to the form of the button b which may be
spherical, dished, or of other form, but it is essential that it should be hollow.
These forms may have recesses, perforations, or excisions (Figures 4 and 5).
A ring c¹, held by an enlargement 1 on the end of the shank a, as in Figure 4,
may replace the head c. The shank a may, instead of being made of elastic
material, be composed of a rigid metallic tube and a metallic rod, the elastic
button being fixed between the two parts. The shank a when made of an
elastic tube may contain a spring, which is firmly connected to the tube at its
upper and lower ends, passing through the middle of the head.
When the shank a is pulled longitudinally the spring is brought into tension
and aids, when the shank is released or the pull ceases, in again forming the
elastic button; the spring also prevents the button from becoming too readily
released.
Dated this 10th day of Amust 1800
COMPLETE SPECIFICATION.
A Device for Fastening Together Newspapers, Invoices, and other
Loose Documents or Papers.
I, Dr. CARL GRÜNZWEIG, of Ludwigshafen-on-the-Rhine, Germany, 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 :-
This invention relates to a device for fastening together newspapers, invoices,

page_text: and other loose documents or papers, etc., so that they can be readily fastened and
unfastened without injury.
The improved fastener, which will be described with reference to the drawings
accompanying my Provisional Specification, consists of a solid or hollow elastic
shank a provided in its length with one or more hollow elastic bulbous or star-
shaped buttons or projections and at its lower end with a disc c.
In drawing the shank a through the hole made in the papers to be fastened
together, the tension applied to the shank causes the elastic bulb or other form of
button b to be stretched out until it is so. diminished in diameter that it can pass
through the perforation in the papers, etc., after which it will resume its previous
dimensions as soon as the pull on the shank ceases, the documents then being
confined, as shewn in Figure 1, between the button b and the disc c.
In order to unfasten the documents, the disc c is pulled until the elastic button b
is stretched out sufficiently to permit of its being drawn through the perforation
as before.
In Figure 2 the shank a is represented in its distended condition, the elastic
button 6 having disappeared in consequence of the pull exerted upon the shank.
The shank a in the drawing is shewn hollow, but it may be solid as above
stated. I do not confine myself to the bulbous form of the button b, which may
be spherical, flattened, dished, or of other form, but it is essential that it should
be hollow, and, instead of being circular, it may be formed of radial projections
with intervening recesses, perforations, or excisions, as shewn in Figures 4 and 5.
Instead of the disc c being formed on the shank, it may be a washer c', as in
Figures 4, 5, 6, 7, held in place by an enlargement 6' formed on the end of the
shank. The shank a, instead of being made of elastic material, may be composed
of a rigid metallic tube and a metallic rod, the elastic button b being fixed between
the two parts.
A spring may be applied within the tubular shank, its upper and lower ends
being connected to the two parts of the shank, the spring passing through the
elastic button, so that when the shank a is pulled, the tension of the spring will
aid, when the pull ceases, in expanding the elastic button; the spring also prevents
the button from becoming too readily released.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. An elastic fastener consisting of a solid or tubular elastic shank a provided
with a base and with one or more hollow elastic buttons or projections bat
intermediate points in its length, substantially as and for the purpose specified.
2. The modification of the fastener referred to in Claim 1, wherein the shank a
is made of rigid metal tubes or rods with the elastic button fixed between the two
metal parts, substantially as specified.
3. In the herein described fastener, the combination, with the tubular shank and
elastic button, of a spring applied within the shank for preventing. the button
from becoming too readily released and of aiding the expansion of the elastic
button, as specified.
Dated this 23rd day of Anril 1901
CARL
GRÜNZWEIG.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.