Combined Screw and Nail.
Year: 1893

page_text: Date of Application, 7th Mar., 1893
Complete Specification Left, 7th Dec., 1893--Accepted, 20th Jan., 1894
I WILLIAM EDWARD KINNERNEY of Theodosia Street Timaru in the Provincial
District of Canterbury New Zealand Solicitor do hereby declare the nature of this
invention to be as follows:-
In lieu of manufacturing a screw with a worm from the end to within a short
distance of the top as at present my method is to make the worm commence at such
a distance from the end as to occupy about one third of the entire length leaving
the remainder of the surface below it without a worm and the end sharp pointed so
as to admit of its being readily driven up to or a little beyond the worm into the
material and from there turned with a screw driver as at present.
ADVANTAGES.
(1.) The use of a gimlet is dispensed with.
(2.) The time and trouble which the use of a gimlet involves is saved.
(3.) Ample power of resistance is secured without the waste involved in carrying
the worm to the end and screwing the whole length.
Dated this 14th day of June 1893.
WILLIAM EDWARD KINNERNEY.
COMPLETE SPECIFICATION.
Combined Screw and Nail.
I WILLIAM EDWARD KINNERNEY of Theodosia Street Timaru in the Provincial
District of Canterbury New Zealand Solicitor, 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 :-
In lieu of manufacturing a screw with a worm from the point to within a short
distance of the head as at present my method is to make the worm commence at
such a distance from the point as to occupy about one third of the entire length
from the point to the head leaving the remainder of the surface below the worm
comprising about one half of the entire length from the point to the head without a
worm and the end sharp pointed so as to admit of its being readily driven up to or a
little beyond the worm into the material and from there turned with a screw driver
as at present.
1. This combination of screw and nail (as described) gives greater facility of
penetration than a screw with a worm extending to the point, combined with
sufficient holding power, also greater facility for extraction than a nail.
2. The use of a gimlet is dispensed with.
3. The time and trouble which the use of a gimlet involves is saved.
4. Ample power of resistance is secured without the waste involved in carrying
the worm to the point and screwing the whole length.
The annexed drawing shows a combined screw and nail in accordance with my
invention.

page_text: a is the worm occupying about one third of the entire length.
b is the portion below the worm, occupying about one half the entire length and
pointed at the extremity.
c is the head portion.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
a is the worm occupying about one third of the entire length.
b is the portion below the worm, occupying about one half the entire length and
pointed at the extremity.
c is the head portion.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
The screw nail substantially as described.
Dated this First day of November 1893.
The screw nail substantially as described.
Dated this First day of November 1893.
WILLIAM EDWARD KINNERNEY,
Of Theodosia Street, Timaru, in the Provincial District of Canterbury,
New Zealand, Solicitor.
WILLIAM EDWARD KINNERNEY,
Of Theodosia Street, Timaru, in the Provincial District of Canterbury,
New Zealand, Solicitor.