Year: 1898

page_text: I, ASA NORMAN WHITNEY, of Melbourne Club, Collins Street, Melbourne, in the
Colony of Victoria, Master Mariner and Engineer, do hereby declare the nature
of this invention to be as follows
-
This invention has reference to an elongated projectile or bullet which, com-
pared with bullets of ordinary construction, shall have less tendency to overturn
endwise, shall be capable of attaining greater velocity, on account of offering less
resistance in flight, shall require less rifling of the barrel to impart the requisite
spin thereto, shall cause less internal stress to be exerted on the barrel upon
explosion of the powder charge, by reason of the diminished rifling enabling it
to be more easily ejected, and shall render the barrel more durable because of the
reduction in the amount of friction to which the barrel is subjected by the bullet.
Moreover my improved bullet possesses the further advantage of spreading con-
siderably on striking an object.
According to my invention the projectile or bullet may be made of any suitable
material or materials and is preferably formed with a cylindrical body and a blunt
conoidal nose It is formed with a longitudinal air-inlet passage or cavity extend-
ing towards the base of the projectile, where the said passage or cavity is provided
with a series of transverse or lateral air outlet holes which are arranged iadially,
tangentially or otherwise and in a plane at right angles or at an inclination to the
axis of the projectile, as may be desired
As will be readily understood, a projectile constructed according to my invention
will meet with less resistance or obstruction from the air during its flight than do pro-
jectiles as heretofore constructed, because the air will be cut by the sharp annular
edge formed at the mouth of the air inlet cavity, and the portion of the obstructing
air that is in front of said cavity will enter the same and issue therefrom through
the transverse holes
Dal 11th Inn T. 1900

page_text: of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement
This invention has reference to an elongated projectile or bullet which, com-
pared with bullets of ordinary construction, shall have less tendency to overturn
endwise; shall be capable of attaining greater velocity, on account of offeing less
resistance in flight, shall require less rifling of the barrel to unpart the requisite
apin thereto; shall cause less internal stress to be exerted on the barrel upon
explosion of the powder charge, by reason of the diminished rifling enabling it
to be more easily ejected, and shall render the barrel more durable because of the
reduction in the amount of friction to which the barrel is subjected by the bullet.
Moreover my improved bullet possesses the further advantage of spreading con-
siderably on striking an object
According to my invention the projectile or bullet may be made of any suitable
material or materials and is preferably formed with a cylindrical body and a blunt
conoidal nose. It is formed with a longitudinal air-inlet passage or cavity extend-
ing towards the base of the projectile, where the said passage or cavity is provided
with a series of transverse or lateral air outlet holes which are arranged radially,
tangentially or otherwise and in a plane at right angles to or at an inclination to the
axis of the projectile, as may be desired
In order that my said invention may be clearly understood and readily carried into
effect I will proceed to describe the same more fully with reference to the accom-
panying drawings in which
-
Figure 1 is an elevation of a projectile constructed according to my invention.
Figure 2 is a central vertical section thereof,
Figure 3 18 a plan, and
Figure 4 18 a transverse section on the hne z, z of Figure 2
Figures 5, 6 and 7 are central vertical sections showing modified constructiona
of the projectile; and
Figure 8 18 a transverse section showing another modification
In all the figures like letters of reference indicate similar parts
A 18 the body of the projectile, B its blunt conoidal nose and C its base. D 18
the longitudinal air inlet passage or cavity formed centrally in the projectile, and
extending from the nose (where it is open) almost to the base. E is the series of
transverse holes formed in the wall or sides of the projectale contiguous to the base
to afford an outlet for the air from the longitudinal cavity D.
In the construction illustrated in Figures 2 and 4 these transverse air outlet holes
are arranged radially and parallel with the base of the projectile The said holes
may however be inclined to the base of the projectile as shown in Figures 5,
and 7 and they may be arranged tangentially, instead of radially, as shown in
Figure 8.
In Figure 6 I have shown a projectile provided with two series of holes, although
one series of holes of a sufficiently large diameter can generally be employed with-
out detrimentally weakening the walls of the projectile
In the drawings I have shown both the cavity and the transverse holes as cylin
drical or formed with parallel sides, but if desired they may be tapered or formed
with inclined sides.
As will be readily understood, a projectile constructed according to my invention will
meet with less resistance or obstruction from the air during its flight than do pro-
jectiles as heretofore constructed, because the air will be cut by the sharp annular
edge formed at the mouth of the cavity D, and the portion of the obstructing air
that is in front of said cavity will enter the same and issue therefrom through the
transverse holes E.
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:
1 A projectile provided with a longitudinal air inlet passage or cavity having
transverse or lateral air outlet holes for the purpose specified.

page_text: 2. A projectile made substantially in accordance with one or other of the con-
structions illustrated in the accompanying drawings for the purposes specified.
Dated this 16th day of June 1898
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.