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Патент USA US2112758

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March 29, 1938.
L. V. S. BLACKER
PROJECTILE
Filed Dec. 2, l93€
2,112,758
2,112,758‘
Patented Mar. 29, 1938
UNITED STATES PATENT OFFICE
2,112,758
PROJECTILE
Latham Valentine Stewart Blacker, Coates, near
Fittleworth, England
Application December 2, 1936, Serial No. 113,930
In Great Britain May 4, 1935
7 Claims.
This invention relates to projectiles and aims
at devising a projectile suitable for quelling mob
riots and like disturbances, without killing or
seriously injuring the rioters.
An object of the invention is to provide a pro
jectile, capable of being ?red by a suitable weapon
to a range of say 100 to 300 yards, and being
of such weight and construction ‘as to knock un
conscious, but not to kill any person whom it
10 strikes within its range.
'
According to the invention a projectile is pro
vided comprising a body portion of' elongated
formation and a forward head or nose portion
of closed or solid form constructed of rubber or
15 other yieldable material, the radius of the head
or nose portion being greater than that of the
orbit of the human eye.
The body portion may be crushable and may
be formed of paper, plastic hard rubber or light
20 metal or the like and may be so constructed as
to telescope within itself upon said head or nose
portion impacting with an object or the ground.
The body portion may be of hollow construc
tion and arranged to contain a charge of stupe
25 fying material adapted to be discharged upon
the projectile striking an object or the ground.
The invention will be more completely under
stood from the following description, which is
given in conjunction with the accompanying
3 O drawing which illustrates in part sectional ele
vation one convenient form of projectile in ac
cordance with the invention.
Referring now to the drawing, the projectile
comprises a head or nose portion a of soft rub
35 ber, e. g. sponge rubber and a rear or body
portion b of harder material, e. g. paper, hard
rubber or metal.
The nose or head portion a
is substantially hemispherical in shape and with
a view to avoiding localized injury is given a
40 radius greater than that of the orbit of the
human eye.
The body portion b is a thin shell of light
metal, or other material, e. g. aluminium and is
shaped to give, with the head, a suitable stream
45 line shape to the projectile, and in order to en~
sure that the projectile shall travel nose ?rst
50
(Cl. 102-23)
?rm grip and/or support for the rubber head
or nose a.
,
'
These two cup-shaped portions f and g are
provided with sufficient tension to enable them
to grip one another in the position shown, but 5
upon the projectile striking an object, the in
verted cup 9' is adapted to telescope within the
cup I, or vice versa thus providing a cushioning
effect in addition to that provided by the rubber
nose or head a.
10
Furthermore, the cushioning effect may be
further enhanced by making the walls of the
body portion sufficiently thin and of such ma
terial as to render them crushable upon the pro-}
jectile striking an object.
15
The body portion b may have a suitable cen
tral tube or rod 11 whereby the projectile (which
although non-explosive otherwise resembles a
grenade) can be ?red by a suitable weapon, and
for this purpose the hinder end portion h of tlus 2o
tubev is adapted to receive a propulsive charge 7' of
explosive whilst the projector is preferably pro- ’
vided with an adjustable gas port for regulating
the range. In the forward portion 1‘ of the tube d,
separated from the hinder portion h by a plug 11, 25
there may be provided a suitable supply of com
bustible or explosive k (e. g. any convenient form
of rocket composition), with the necessary fuze
or like igniting means, in order to maintain a
prearranged velocity during ?ight after the pro- 30
jectile has been ?red and enabling the projectile
to be given a long range without a high initial
velocity.
If necessary, e. g. to position the centre of
gravity correctly, the projectile may be loaded 35
with lead or other suitable weights 1 embedded in
the rubber, and if desired the cavity e, formed
by the two cup-shaped members J‘ and 9, may be
?lled with a charge m of in?ammatory material,
tear gas or other substance, e. g. lachrymatory, 40
vesicant, stupefying or smoke producing, adapted
to be ignited and/or discharged when the pro
jectile strikes an object or the ground, the walls
of the cup-shaped members 1‘ and g being pro
vided with perforations n so as to allow the con- 45
tents of the space e to escape upon the members
during ?ight, the rear end of the body portion b
1‘ and g becoming telescoped. These perforations
is provided with tail ?ns c which are preferably
mounted so as to rotate the missile during flight.
are preferably covered with varnished paper 0
or the like in order to provide a closure for the
holes until the moment of impact, and suitable 50
detonating means may be provided for igniting
the material on the projectile striking an object
or the ground or on discharge. Alternately, the
The body portion b is of frusto-conical shape,
and the larger end, takes the form of a cup
}shaped forward mouth I engaging at its open
end with the open end of an inverted cup-shaped
portion g which thus forms an inwardly pro
55 jecting end portion to the body b and provides a
material to be discharged may be housed within
a cavity provided for it in the rubber nose a, or 55
2
‘2,112,768
in any other suitable position in the body of the
projectile.
The ef?cacy of the projectile will depend upon
its terminal energy at the desired range, and the
present invention contemplates a terminal energy
of 30 to 100 ft. pounds over ranges from say 100
to 250 yards. The projectile may have a total
Weight of about 10 ounces of which about half
may be contained in the rubber head portion and
10 the remainder in the tail piece and ?ns. To
modify these weights it may be desirable to em
ploy other materials (e. g. vulcanite, of suitable
strength to withstand the discharge shock, to
15
form the tail and/or ?ns).
In a modi?cation of the invention the projec
tile may be so constructed as to be used as a mis
sile, suitable ‘to be dropped from aircraft. In
such modi?cation the body of the missile is of
substantial size and smooth, regular external
20 shape'. Thus a substantially hemispherical nose
portion preferably of soft rubber, e. g. sponge
rubber, may merge into a harder rear portion of
hard rubber, metal or other material, the whole
being of conventional bomb-like shape, and be
ing provided with tail members or ?ns, e. g. an
attachment of aluminium or vulcanite or other
material, to maintain correct attitude and/or
movements during ?ight. The interior may be
loaded with lead or other weights, correctly to
position the centre of gravity, and may if desired
3. A projectile comprising a head portion of
yieldable material, a body portion of harder ma
terial, an open cup-shaped portion secured to
said body portion and an inverted cup-shaped
portion secured to said head portion, said cup 5
shaped portions cooperating with one another
so as to form an enclosed space and to slide one
within the other upon the projectile striking an
object, a charge of in?ammable material‘ housed
in said enclosed space and detonating means 10
adapted to be ignited by the impact of said pro‘
jectile with an object.
'
4. A projectile comprising a head portion of
yieldable material, a body portion of harder ma
terial, an open cup-shaped portion with perfo 15
rated walls covered with a readily destructible
material secured to said body portion, an in
verted cup-shaped portion also with perforated
walls covered with a readily destructible mate
rial secured to said head portion, said cup-shaped 20
portions overlapping one another to form an en
closed space.
5. A projectile comprising a body portion and
a forward head portion, said body portion being
attached to said head portion and being of elon 25
gated formation, said head portion being con
structed of yieldable material and being of closed
formation having a cross section greater than
that of the human eye, a tubular rod attached to
said body portion for enabling the projectile to 30
have material for producing tear or other gas
be discharged from a suitable weapon, means for
therein adapted to be discharged upon contact
of the missile with a target or the ground. Since
dividing the interior of said tubular member into
two chambers, a propulsive charge of explosive in
such a missile is not intended to be ?red from a
weapon, the tubular bore in the tail such as de
the rearmost chamber and a charge of combusti
ble material in the forward chamber for main
scribed above, and the propulsive charges con
tained therein, are dispensed with, and the tail
is of closed or solid form suitably shaped. En
taining the projectile in ?ight.
ergy considerations such as set out above in con
40 nection with the consideration of the e?icacy of
the device as a projectile are applicable to de
termine the weight and ?nal velocity to be em
ployed.
It must be understood that the invention is
not limited to the constructional details de
scribed above since modi?cations may be intro
duced as they become desirable under different
conditions and requirements which have to be
ful?lled, without departing in any way from the
scope of the invention.
_ Having now described my invention, what I
claim as new and desire to secure by Letters
Patent is:—
1. A projectile comprising a head portion of
yieldable material, a body portion of harder ma
terial, an open cup-shaped portion secured to said
body portion and an inverted cup-shaped por
tion secured to said head portion, the open ends
6. A projectile comprising in combination a
head portion of yieldable material, having a cross
section greater than that of the orbit of the hu
man eye, a body portion of harder material and 4.0
of elongated shape, a cup-shaped member at
tached to the forward end of said body portion
and an inverted cup-shaped portion attached to
said head portion and cooperating with the cup
shaped member of said body portion to form an
enclosed chamber, a hollow tubular member at
tached to the tail of said body portion, means
for dividing the interior of said tubular member
into two chambers and a plurality of ?ns sur
rounding the tail of said body portion.
50
7. A projectile comprising in combination a
head portion of yieldable material, having a cross
section greater than that of the orbit of the hu
man eye, a body portion of harder material and
the projectile striking an object.
2. A projectile comprising a head portion of
yieldable material, a body portion of harder ma.
65 terial, an open cup-shaped portion secured to
said body portion and an inverted cup-shaped
portion secured to said head portion, said cup
shaped portions overlapping one another to form
of elongated shape, a cup-shaped member at
tached .o the forward end of said body portion,
an inverted cup-shaped portion attached to said
head portion and cooperating with the cup
shaped member on said body portion to form an
enclosed chamber, a charge of stupefying mate 60
rial in said chamber, a hollow tubular member at
tached to the tail of said body portion, means for
dividing the interior of said tubular member into
two chambers. a propulsive charge of explosive
in the rearmost of said chambers, a charge of
combustible material in the foremost of said
chambers and a plurality of ?ns surrounding the
tail of said body portion.
an enclosed space, and a charge of stupefying
70 material housed in said space.
LATHAM VALENTINE STEWART BLACKER.
of said cup-shaped portions making sliding con
60 tact with one another so as to form an enclosed
space and so as to slide one within the other upon
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