Year: 1886

page_text: We ARNOLD ZIVNY, Civil Service Officer of Ottakring, Elisabethgasse 22; and
JOHANN BAPTIST PETZL, Rope Manufacturer of I Adlergasse 1, both in Vienna in
the Empire of Austria do hereby declare the nature of this Invention to be as
follows:-
This Invention relates to Archery Bows, and consists essentially in certain
improvements in the construction of the Bow and its adjuncts hereafter described.
The bow is constructed of two halves, each consisting of a flexible metal rod
united by a tubular middle piece to be grasped by the left hand of the archer, the
inner ends of the bow halves being removably fixed in the tubular middle piece, by
means of bushes fixed in the latter, and forming sockets to receive the former
which are retained therein by spring catches. Through this tubular middle piece
passes a tubular arrow guide, the said guide tube being normal to the middle part
of the bow, and being furnished at its rear end with a plate faced with leather, or
india-rubber to form a cushion for the bow string to strike against when the arrow
is shot off. The middle part of the bow also carries a sight bar furnished with a
pair of sights of which one is adjustable to suit the range, for the purpose of
ensuring precision of aim The bow is strung with wire also in two halves
respectively attached to the ends of the bow by an eye and a forked hook, the two
parts being united by a middle piece for the notch in the heel of the arrow to fit
on, the sides of the heel end of the arrow itself being recessed to afford a good grip
in drawing the bow.

page_text: We, ARNOLD ZIVNY Civil Service Officer, of Ottakring Elisabethgasse 22 and
JOHANN BAPTIST PETZL Rope Manufacturer, of I Adlergasse 1, both in Vienna in
the Empire of Austria, 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 Archery Bows; and consists essentially in certain
improvements in the construction of the bow and its adjuncts hereafter described,
whereby arrows may be shot with greater initial velocity and precision than with
bows as ordinarily made. This improved bow is constructed of two strong plate
springs united by a tubular middle piece in the ends of which the springs are
suitably fixed, the said middle piece being traversed by a guide tube for the arrow,
the said guide tube being normal or perpendicular to the middle piece and being
furnished at its rear end with a cushion for the bow string to strike against when
the arrow is shot off. The middle piece also carries a sight bar parallel to the
guide tube and furnished with a pair of sights, of which one is adjustable to suit
the range for the purpose of ensuring precision of aim. The bow string consists of
two wires connected together by a rigid link or middle piece for the notch in the
heel of the arrow to fit on.
Reference is to be had to the annexed sheet of drawings forming an integral part
of this Specification, in which figure 1 is a side elevation of an archery bow
embodying the Invention, the bow being represented as partly drawn or bent, and
baving a featherless arrow inserted in its guide-tube. Figure 2 shews, on a larger
scale, a partly sectional side elevation of the middle tube illustrating the mode of
removably fixing the two plate-springs therein, and shewing the guide tube and
the sight bar in position. Figure 3 is a rear side elevation of the said middle tube,
and the parts connected thereto. Figures 4 and 5 shew different means for con-
necting the articulated wire string to the ends of the bow. Figure 6 shews a side
view and plan of the rear end of a featherless arrow. Figure 7 is a cross-section
of the middle tube of the bow on line x-x Figure 3 shewing the guide tube and
sight bar in plan. Figure 8 is a rear side elevation and Figure 9 a sectional
perspective view of the middle connecting tube of a bow provided with a channelled
guide tube for feathered arrows. Similar letters of reference indicate like parts in
all the figures.
Into both ends of the middle connecting tube a of the bow are inserted bushes b
forming sockets to receive the cylindrical stems c¹ of the plate springs c composing
the bow, the sockets being provided at the outer end with two diametrically
opposite rectangular notches b¹ to receive the shoulders c² of the springs, and at a
point farther inside the bore of the sockets with a recess b² to receive the nose c³ of
a spring catch which is lodged in a longitudinal groove in the stem c¹ By this
means, the parts c of the bow are locked in the sockets b and are prevented from
turning therein. The springs c may either be of the form shewn by full .lines, or
of the form shewn by dotted lines in figure 1, and their outer ends are provided
either with a small cross-pin c figure 4 for the attachment of a forked hook c
attached to the terminal eye of the wire string d, or with a small hook c figure 5
to which the terminal eye of the wire-string is directly attached. The two parts d

page_text: of the wire string are connected together by means of a small rigid link d¹ on
which the notch e¹ in the heel of the arrow e fits when the bow is drawn, as clearly
shewn in figure 1. is the arrow guide-tube fixed across the middle connecting
tube a of the bow, said guide tube f having a plain cylindrical bore when used for
featherless arrows (see figures 1, 2, 3, and 7) or the bore may be provided along its
top and bottom sides with deep longitudinal grooves f f giving passage to the
feathers of a feathered arrow (see figures 8 and 9) the guide tube being fixed in
position in the middle piece a preferably by means of a conical collar f¹ and a
conical nut f screwing on a threaded part of the guide-tube, or if the guide tube
be not of circular cross-section as shewn in figures 8 and 9 it may be soldered into
corresponding holes in the middle tube a of the bow. In most cases however,
guide tubes for feathered and for featherless arrows will be provided for each bow,
and the means of fixing them in position in the middle of the bow will be such as
to admit of their ready interchangeability. The rear end of the guide tube fis
provided with a plate or flange f³ faced with leather or india-rubber f' which
forms an elastic cushion for the middle link d of the wire-string when the arrow
is discharged. The sight bar g is fixed cross-wise to the left hand side of the
middle connecting tube a, which latter when the bow is used is to be grasped by the
left hand of the archer. The front-sight or grain-sight g¹ fixed to the front end of
the bar g is fixed, and the vertically adjustable breech sight g² is fixed by a
clamping screw to the rear end of the bar g². The arrow e is preferably provided
with a steel point or head e²..
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed; we declare that what
we claim is; -
1st. The combination with an archery-bow of a guide-tube f for the arrow and of
& sight bar g parallel to said guide-tube and carrying a pair of sights, substantially
as set forth.
2nd. A bow-string consisting of two wires d of equal length connected together
by means of a small rigid link d¹ which forms the abutment of the arrow, sub-
stantially as set forth.
3rd. The combination with the arrow guide tube ƒ of a rear end flange f
carrying a leather or rubber cushion, substantially as and for the purpose set
forth.