Improvements in and relating to Targets and the like.
Year: 1899

page_text: Date of Application, 6th June, 1899--Accepted, 23rd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in and relating to Targets and the like.
I, EMIL FERDINAND GUSTAV PEIN, of 68, Neustadter Neustrasse, Hamburg, in
the Empire of Germany, Engineer, 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 relates to an arrangement, in connection with targets for
shooting-practice, for enabling the "hit" of the projectile to be correctly ascer-
tained at the shooter's stand. The invention is especially adapted for military
purposes and its advantage is that incorrect indicating is impossible and that
no one need be near the target during shooting practice.
Thus the officer on duty is relieved of great anxiety knowing that a bullet
going astray cannot possibly have a deadly effect.
The transmission of the "hit" is effected through the medium of electric
currents.
My invention will be clearly understood by referring to the accompanying
drawings which are diagrammatic representations of my improved arrangement
and in which
Figure 1 shows the connections for the currents between the target Z and indi-
cator A.
Figure 2 shows the divisions forming the target disc.
Figure 3 shows the electrical connections for one of the rings of the target
disc.
Figure 4 shows the means for operating the pointer of the indicator.
Figure 5 shows the removable connection of the resistances, and
Figure 6 shows the indicator disc arranged for dummy shooting practice.
According to this invention I provide a target disc Z formed of a number of
sections 1 as shown in Figure 1 and more clearly in Figure 2. These sections
are made of bullet proof material and they are movably arranged by means of
suitable guides and are kept in their normal position by springs as seen at
Figure 1.
The guide pin 2 of each of the sections forms a contact piece which, on the
section being hit, is driven rearward against a corresponding contact plate 3.
These contact plates are insulated from each other and they are separately con-
nected to conducting wires 4. The sections 1 of the disc all receive the current
from the wire 5 owing to their being guided in a metal plate and springs 6.
The divided disc Z is provided with the usual sheet of paper which latter has
divisions corresponding to the sections 1 of the target disc and the indicator
disc A is marked with the same number of divisions.
The effect from the operation of the arrangement is that the projectile P on
striking the target Z forces the particular section inward and thereby produces
contact between the pin 2 and contact-plate 3 thus causing the corresponding
relay 7 to come into action. This latter thereupon sends a current to the indi-
cator disc A and causes the deflection of its pointer.

page_text: By considering a certain shot to have been made it will be easy to follow the
subsequent actions by the aid of the drawings. Suppose the bullet to have hit
the target at a spot marked T in Figure 2 being the first quadrant to the left
of the vertical centre line in the ring X. Thus the bullet is the cause of a
momentary contact between 2 and 3 X thereby setting up a current through 2, 3 X,
line 4, relay 7, return-wire 8 and battery 13 and so causing the relay armature
lever 9 to swing round towards the relay on the one hand and towards the
contact 10 on the other hand and to be returned in such position. By these
means another current is created which passes from the battery B2 through a
resistance 11 conducting wire 12 armature 9 contact 10 and line wire I indicator
dial A return wire O back to battery B².
To know whether a ring of a certain denomination has been hit at its left
or right, or high or low the leading off wires 13 of the contacts 10 are so arranged
that for example all the connecting wires from the sections in the quadrant 14-15
of the disc Z of the target are connected up to the line wire I Figures 2 and 3.
The said line wire I is led to an indicator flap 18 on the dial A and only after
the current has operated this flap does it pass through the windings of the
galvanometer 19 Figure then returning through the line to battery.
The connecting wires of the sections in the sector 15-16 of the target disc Z
are connected up to the line wire II and this latter leads to another flap 20 and
then through another, oppositely wound, galvanometer convolution Figure 4.
The galvanometer pointer 22 is thus caused to turn towards the left in the
one case and towards the right in the other case and the released flap shows from
which quadrant the readings must be taken.
Obviously the section hit at the point T, Figure 2, is signalled on the indicator
dial A by the released flap 18 and also by the deflection of the pointer 22 which is
shown by dotted lines.
The graduated deflection of the pointer is effected by a graduated switching-on
of the resistance 11 owing to the wire connections 12 from the armatures 9 being
led to different portions of the resistance.
The lower quadrants of the disc Z are similarly connected i.e. the connections
of the quadrant 16-17 leading to the line wire III with the flap 24 in circuit
and galvanometer 19, while the connections of quadrant 14-17 lead to the line
wire IV, flap 23 galvanometer 21 and 0.
This is more clearly shown in Figure 3 which represents the connection for
a single ring. The dotted lines are conductors which branch-off from the
resistance 11 and lead to the armature levers 9.
The pointer 22 remains in its position as long as the armature 9 is resting
against the contact piece 10.
The reversing of the armature lever is effected through the medium of the
line V taken from the battery 13 through the key 25 and through all the coils 26.
Each closing of circuit causes the retirement of the armature lever and the
interruption of the passage 9-10 and therewith also the return of the pointer 22
to its normal position.
This
When a dummy target is employed it becomes necessary to cut out the scoring
circuits of the circular target and switch in circuits representing the relays of
the dummy-sections with, perhaps, different resistances. Or, supposing the
dummy to be pasted over the circular target, the scoring circuits of the sections
outside of its contour will be cut out and the others altered to conform.
may be done by terminating the conductors 12 between the resistance 11 and
the relay levers representing the sections of the circular target, in contact plates
arranged along the length of a movable insulating bar 27 so as to be bodily
movable away from corresponding contact points arranged along the length of
the resistance coil 11, and connecting branches from the relay levers representing
the dummy sections, with terminal contact plates upon a second movable non-
conducting bar 28, to coact with contact points correspondingly arranged along
the length of the resistance coil, all as shown in Figure 5, so that by moving

page_text: bar 27 out of contact and bar 28 into contact, the required change of scoring
circuits is at once effected.
A representation of the dummy may be pasted in the quadrants of the indicator
dial, as in Figure 6, heads up in the upper quadrants and heads down in the
lower quadrants. Lines marking sectors will then suitably apportion the various
members of the body so that the position of the pointer will at once indicate
whether a hít is in the head, below the knee, or elsewhere; the annunciator, if
used, will show whether on the right side or the left, and the scale resting will
determine the definite point.
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 target disc having an arrangement for the electrical transmission of the
results to the stand of the shooter characterized in that by the impact of the
projectile a circuit is closed in connection with which a relay 7 is caused to
close a longitudinal circuit (I II III and IV) the strength of which is dependent
upon more or less resistance portions of a resistance 11 being inserted so as
to cause the pointer 22 of a galvanometer to be deflected accordingly while
flaps 18, 20, 24, 23, in connection therewith and owing to the reverse windings 19
and 21 of the galvanometer, indicate from which of the quadrants of the dial A
the readings are to be taken.
Dated this fth day of T 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.