Improvements in Nails, Hooks, Staples, and the like.
Year: 1897

page_text: Date of Application, 13th Nov., 1897-Accepted, 20th May, 1898
COMPLETE SPECIFICATION.
Improvements in Nails, Hooks, Staples, and the like.
I, DR. HEINRICH TRAUN, of Meyerstrasse 60, Hamburg, in the Empire of
Germany, Manufacturer, do hereby declare the nature of my said invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
In connection with electric installations, explosive factories, apparatus in use in
chemical and many physical laboratories, it is often impossible to employ nails of
iron or other metal, either on account of the danger of fire or because they are
subject to corrosion, or they influence disadvantageously certain observations or
experiments. Hard rubber or vulcanite is indifferent to all these influences, and
the object of the present invention is a nail, staple, hook or the like which is made
of vulcanite.
And in order to render the present specification more easily intelligible reference
is had to the accompanying drawing in which similar letters of reference denote
similar parts throughout the several views:
Fig. 1 shows one form of nail in side and front elevation and plan,
Fig. 2 shows similar views of a modified form of nail.
Fig. 3 side and front elevations of a staple
Fig. 4 vertical section through a combined vulcanite and metal nail.
The comparatively small resisting strength of vulcanite as compared with iron
and other metals, necessitates a corresponding formation of the nail, not only as
regards the head but also with reference to the shank. From the accompanying
drawing it will be seen that the latter is considerably thicker than in the case of
metal nails. The hook nail shown at Figure 1, for securing electric conductors,
is formed with a peculiarly shaped head, which is hemispherical as at a, whilst
the hook shank c is provided with a strengthening rib b extending to the head a.
In the modification of the invention shown at Figure 2 the hook nail is provided
with a groove d in which the electric conductor lies.
The staple shown at Figure 3, has thick shanks, and the bend v is provided
with a strengthening rib q as shown the cross-section of the bend being either
rhombic, oval, or half rhombic & half circular. In Figure 4 61 is a metal nail,
which is first covered with rubber and then vulcanised. The nails hooks and the
like may be formed to any other convenient shape as circumstances may dictate or
render advisable.
In many cases metallic nails thus coated with rubber will serve the same purpose
as a solid vulcanite nail.
Having now particularly described and ascertained the nature of my said inven-
claim is:-
tion and in what manner the same is performed, I declare that what
1: Nails, hooks, staples and the like, of vulcanite, substantially as described.
2: In combination with nails covered by Claim 1:
a: A hemispherical head a and a strengthening rib b (Fig. 1);
b: A hemispherical head a, a strengthening rib 6 and a groove or recess d

page_text: 3:-In combination with staples as covered by Claim 1, a bend v having a
rhombic, oval or combined rhombus and circle-shaped cross section (Fig. 3).
4: Nails, hooks, staples and the like häving a metallic core coated with
vulcanite.
5:Nails, hooks, staples of vulcanite substantially as illustrated in the accom-
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.