Improvements in Bullets.
Year: 1889

page_text: Date of Application, 19th Sept., 1889
Complete Specification Left, 14th June, 1890-Accepted, 2nd Aug., 1890
Improvements in Bullets.
GEORGE ALBERT FRANKS of 48 High Street Guildford Surrey, Contractor, and
ALEXIS DE COPPET, Householder and LOUIS BRANDT Inventor, both of 99 Park
Street, Grosvenor Square London West. Middlesex do hereby declare the nature of
this invention to be as follows:-
It is an improvement on the ordinary bullets or new ones.
It is perforated longitudinally with straight or spiral hole or holes.
Or with tin or copper tubing if not against the international laws for war, but it
is an advantage for the sporting bullets for large game.
By our private trials we have gained 25 % at 600 yards range on the elevation of
sight.
We think it will be a great advantage for the army as the bullet is one tenth
lighter than the present one, and for large field artillery it will go to a much longer
range.
GEORGE A. FRANKS.
ALEXIS DE COPPET
LOUIS BRANDT.
Tongue & Birkbeck,
COMPLETE SPECIFICATION.
Improvements in Bullets.
We GEORGE ALBERT FRANKS, of 48 High Street Guildford in the County of
Surrey Contractor and ALEXIS DE COPPET, Householder, and LOUIS BRANDT,
Inventor, both of 99 Park Street Grosvenor Square London in the County of
Middlesex 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 has for its object improvements in the construction of bullets.
For this purpose we perforate or form bullets shot and other projectiles tongi-
tudinally with a straight or spiral hole or holes from end to end.
Or we cast or form them with tin or copper tubing advantageously for sporting
bullets for large game.
Bullets and other projectiles of our improved construction will be found advantageous
for army use as the bullet etcetera may be made lighter than those of ordinary con-
struction and for large field artillery and other uses will travel to a much longer
range with a lower trajectory .e. with a lower elevation.
And in order that our invention may be easily understood and readily carried into
practice we will proceed to describe the drawings bereto annexed Figure of which
shows a side view Figure 2 a longitudinal section and Figures 3 and 4 end views of
a bullet a or other projectile formed with a straight passage or hole a through it in
accordance with our improvements.
To impart rotation to the bullet or projectile in its flight the passage al may be
spiral or may have spiral rifle grooves or threads formed internally therein or thereon
or the projectile may be rifled on its outside or both.
is a copper or other metal disc or other suitable disc secured or mounted at the
back end of the bullet or projectile in any suitable manner for instance by wax (or
other adhesive matier) to prevent escape of gases through the central passage in the

page_text: bullet when the explosion takes place the disc 2 falling or being blown away when
the bullet passes out of the mouth of the gun.
Or the inner or back end of the passage through the bullet may be closed during
the explosion by a disc of metal or other, hard material enclosed in the end of
the cartridge (next to the bullet) containing the gunpowder or other explosive
inaterial.
The front end of the passage through the bullet is advantageously bell mouthed
or cone shaped thus serving to gather and conduct the air into the central passage
through the bullet, or projectile.
One two or more straight or spiral holes (smooth or rifled) may be formed through
the bullets or other projectiles in accordance with our invention if desired and for
some purposes such passage or passages may be lined with tin copper or other metal
tubes.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to he performed we declare that what we
claim is :-
1. The improvements in bullets or other projectiles in which a straight or spiral
hole or holes is formed through them substantially in the manner and for the purposes
herein before described and represented in the drawings hereto annexed.
2. A bullet or projectile having one or more passages or openings right through
the same lengthwise.