Improvements in the Construction of Nails, Spikes, Staples, and the like.
Year: 1890

page_text: Date of Application, 7th Nov., 1890-Accepted, 13th Dec., 1890
COMPLETE SPECIFICATION.
Improvements in the Construction of Nails, Spikes, Staples, and
the like.
I, JAMES ATHOL BROCK, of Lee-on-the-Solent, Gosport, in the County of
Southampton, Gentleman, 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 certain improvements in nails, spikes, staples, and the
like, which are constructed in such a manner that when driven into wood, or
other material of a like nature, the ends or points will turn over and take a
curved direction thereby taking a firm hold of the material into which they are
driven.
To effect this object I form the points of the nails, spikes, staples and the like of
a curved shape from one side to the other, that is to say, curved in one direction only,
thus forming a segment of a circle of large radius.
Various forms of nails etc. constructed in accordance with my invention are shewn
on the accompanying drawings.
Figure 1 shews front, back, and side elevations of a wire nail;
Figure 2 shews similar views of a wire nail having flat sides
;
Figure 3 shews front and side elevations of a bifurcated nail with flat sides having
the curved faces towards each other,
Figure 4 shews similar views of a wire staple, also having the curved faces towards
each other, and
Figure 5 shews the section of a block of wood into which the curve pointed staple
has been driven;
Figure 6 is another section of a block of wood into which a wire nail such as is
shewn in Figure 1 has been driven, and
Figure 7 is another section of wood with a bifurcated nail driven therein.
My invention may be applied to all kinds of nails, railway and other spikes,
brads, staples, and the like whether made of wire, or cast, wrought, cut or otherwise
formed. The curve on the point of the nail is made of any suitable radius according
to the grain and degree of hardness into which the nail, spike, etc. is to be driven, and
to the desired amount of curvature which the nail, spike, etc. is required to take up
when driven home. In driving in a nail, spike, etc. constructed in accordance with
this invention the nail is held vertically and the head or upper part struck in the
ordinary manner, the rounded shoulder however abutting against the material will
cause the point to turn over, and the nail, spike, etc. will take up the curved position
shewn in Figures 5, 6 and 7.
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 :-
The construction of a nail, spike, stapie, or the like, or a bifurcated nail, the point
or points of which is or are curved in one direction, or in opposite directions in the
shape of a segment of a circle of large radius, substantially as and for the purpose
herein before described and shewn in the accompanying drawings.
Dated thin 7th
1000
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.