Improvements in the Construction of Pneumatic Arrows.
Year: 1899

page_text: PROVISIONAL DI BUITICATION.
Improvements in the Construction of Pneumatic Arrows.
I, HENRI OTHON KRATZ-BOUSSAC, of Rue St. Laurent, Paris, in the Republic
of France, Engineer, do hereby declare the nature of this invention to be as
follows:
-
In pneumatic arrows as heretofore constructed it has been usual to form the
stem integral with the elastic-arrow-head either by moulding the latter around
a ferrule provided at the end of the wooden stem and securing all together by
the aid of a rivet; or by placing a ring around the upper portion of the arrow-
head and securing such ring, rubber and wooden stem together by a rivet.
These mountings have the following inconvenience:
Whenever the arrow encountered an obstacle, and especially when the shot
was made from a short distance, the wooden stem of the arrow rebounded, taking
with it, and detaching from the target or other surface, the rubber-head with
which it was firmly connected, thus the arrow did not remain attached to the
surface to which the shot was directed and consequently the result desired was
not obtained.
Now this invention has for its object to obviate these defects by rendering
the wooden stem independent of the head, and in carrying my invention into
effect I form, while moulding the head, a recessed part or passage therein
which terminates in a cavity, adapted to receive an enlarged end of the stem
of the arrow.
The wooden stem is provided at each end with a metal ferrule provided with
a flange or enlarged end and one end of said stem is entered into the head in
such a manner as to cause a portion of the wood and the ferrule thereof to be
embedded in the rear part of the head. This result is obtained by simply
forcing the stem into the head of the arrow, so that the ferrule engages in the
recess therein.
Thus the stem and the head of the arrow are absolutely independent of each
other, being only temporarily connected by means of the ferrule engaged in the
recess. When the arrow strikes the object and the stem has any tendency to
recoil it can do so without harm, as the rubber of which the head is made is
sufficiently elastic to yield to such an extent as to enable the ferrule to dis-
engage from the recess, thus permitting the detachment of the stem from the
head, or at least its withdrawal into the recessed part or passage before referred
to. The result is that in all cases the head of the arrow adheres to the spot on
the target or other object struck there being no tendency for it to follow the
retrograde movement of its stem.
If the stem completely leaves the head it is only necessary to detach the
latter from the object to which it is adhering and re-insert the stem, when the
arrow is again ready for use. If the stem has not become completely detached
from the head but has recoiled only sufficient for a portion to remain in the
recessed part or passage before described, the stem will, by itself, re-occupy its

page_text: proper position owing to the pressure exerted upon the head in charging
the gun.
With this improved arrow a single stem may be used concurrently with a
large number of heads, each head being left in the position where it struck
the object.
Instead of forming the ferrule with a flange I may find it desirable to dis-
pense with the flange in order to render the insertion and extraction of the
stem from the head easier.
In order to prevent accidents in the case of children shooting with the stem
only without the head being attached thereto I may provide around the ferrule
a small protecting cap of rubber or the like, the diameter of the recessed part
or passage being arranged to enable the insertion of the stem into its rubber cap.
Dated this 14th day of December 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of Pneumatic Arrows.
I, HENRI OTHON KRATZ-BOUSSAC, of Rue St. Laurent, Paris, in the Republic
of France, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
In pneumatic arrows as heretofore constructed it has been usual to form the
stem integral with the elastic-arrow-head either by molding the latter around
a ferrule provided at the end of the wooden stem and securing all together by
the aid of a rivet; or by placing a ring around the upper portion of the arrow-
head and securing such ring, rubber and wooden stem together by a rivet.
These mountings have the following inconvenience:
Whenever the arrow encountered an obstacle, and especially when the shot
was made from a short distance, the wooden stem of the arrow rebounded, taking
with it, and detaching from the target or other surface, the rubber-head with
which it was firmly connected, thus the arrow did not remain attached to the
surface to which the shot was directed and consequently the result desired was
not obtained.
Now this invention has for its object to obviate these defects by rendering
the wooden stem independent of the head, and in carrying my invention into
effect I form, while moulding the head, a recessed part or passage therein
which terminates in a cavity, adapted to receive an enlarged end of the stem
of the arrow.
Referring to the accompanying drawings in which:
Figure 1 is a section of a pneumatic arrow head constructed in accordance
with this invention.
Figure 2 an elevation of the stem of an arrow, and
Figure 3 an elevation of the complete arrow.
The wooden stem b is provided at each end with a metal ferrule bu provided
with a flanged or enlarged end and one end of said stem is entered into the
head in such a manner as to cause a portion of the wood and the ferrule b¹
thereof to be embedded in the rear part of the head. This result is obtained by
simply forcing the stem into the head of the arrow, so that said ferrule 61 engages
in the recess a¹ therein.

page_text: Thus the stem and the head of the arrow are absolutely independent of each
other, being only temporarily connected by means of the ferrule 6 engaged in
the recess a¹. When the arrow strikes the object at which it is aimed and the
stem has any tendency to recoil, it can do so without harm, as the rubber of
which the head is made is sufficiently elastic to yield to such an extent as to
enable the ferrule to disengage from the recess a¹, thus permitting the de-
tachment of the stem from the head, or at least its withdrawal into the
recessed part or passage a.
The result is that in all cases the head of the arrow
adheres to the spot on the target or other object struck there being no tendency
for it to follow the retrograde movement of its stem.
If the stem completely leaves the head it is only necessary to detach the latter
from the object to which it is adhering and re-insert the stem, when the arrow
is again ready for use. If the stem has not become completely detached from
the head but has recoiled only sufficient for a portion to remain in the recessed
part or passage before described, the stem b will, by itself, re-occupy its proper
position owing to the pressure exerted upon the head in charging the gun.
With this improved arrow a single stem may be used concurrently with a
large number of heads, each head being left in the position where it struck
the target or other object.
Instead of forming the ferrule with a flange, I may find it desirable to
dispense with the flange in order to render the insertion and extraction of the
stem from the head easier.
In order to prevent accidents in the case of children shooting with the stem
only without the head being attached thereto I may provide around the ferrule 6'
a small protecting cap of rubber or the like, the diameter of the recessed part
or passage being arranged to enable the insertion of the stem into its rubber cap.
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 pneumatic arrow consisting of an elastic head formed at its rear portion
with a hole a terminated in a recess a¹ of larger diameter, and of a stem fur-
nished with a ferrule formed with a flange adapted to engage in the said
recess a for the temporary connection of the head and stem there being no
other means of connection between the two parts so that at the impact of the
arrow with the object struck the stem, when recoiling, withdraws from the head
either entirely, or simply into the hole a, without the head falling off the target
or other object struck substantially as herein before described and illustrated
by the accompanying drawings.
2. In combination with the elastic head of a pnuematic arrow as claimed in
Claim 1 having a hole a without the recess a¹ of greater diameter, of a stemi
fitted with a ferrule without flange and covered, or not, with a rubber cap, the
diameter of this extremity of the stem being such as to enable the stem to
penetrate into the hole a of the head, the whole substantially as described and
for the purpose specified.
Dated this with day of
لسمك
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.