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Патент USA US2407724

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Sept. 17, 1946.
J, w, PET“
Filed April 10, 1945
Patented Sept. 17, 1946.
‘2,407,723 ‘
' ‘John W. Petrie, New‘Haven, Conn., assignor to
Petrie-Lewis Manufacturing Co.,,_ Inc., New ,
. ‘ Haven, Conn, a corporation of Connecticut ~ 7
‘,Application April 10, 1945,- Serial No. 587,640‘
, ‘
6 Claims.
(01. 287-126)
The invention relates to improvements in
wands and more particularly, to an improved
Figure‘? is a cross-sectional viewtaken 0n the
structure of wands having a light-in-weight hol
low handle portion and a comparatively heavy
tip orend.
Whereas the present inventionis particularly
applicable; to hollowwands of the type generally
used by magicians, certain novel“ features thereof
are adapted, to be incorporated in the structure
' of tubular canes, jointed rods, and the like.
In hollow wandsof the form used by magicians
it is desirable that a solid tip, ‘or ‘end, be rapidly
and readily removable and as rapidly and readily
‘ other modi?ed form of wand or like articlej and
line 'l--'! of Figure 6.
Referring now to the drawingwhcrein like ref
erence numerals designate like parts throughout
the several views; the numeral H denotes a holf
low section constructed by wrapping a sheet, or
. strip, of thin material such as paper, or the like,
intoahollowtube, ‘or cylinderl v The outer lay
10 ers I2 of the sheet of material fo-rmingthe tube
are secured together by paste, or glue to stiffen it",
and the outer surface may be covered with a
coating of paint, or other like material, to color
applied to, and‘?rmly secured to, the handle
the same. The inner layers I 3 of'the'material
portion. It is likewise desirable to releasably but 15 forming the tubeare left loose for a purpose to
?rmly attach ajhandle to a tubular cane, or to
be hereinafter described,
releasably join together the portions of a jointed
In the case of a wand a‘cylindrical tip [4 is‘at
rod or pointer. One ‘object of this invention is to
tached to one end of the hollow ‘section I! while
provide novel means to releasably and tightly join
in the case of a cane the portion I4 would be
together a handle, or a tip portion, to a hollow 20 the handle while the hollow section I! would be
cane, pointer, or to a handle portion, respectively.
the cane body. Obviously in the case of. ajointed
Another object is to provide a wand, cane, or
rod the tip portion M‘would be‘ one of the sec
pointer, composed of two sections which are of
such structure that by rotation of one section
tions while the portion ‘ll would be another.
The wand tip l4 illustrated ‘in the drawing‘ com
relatively to the other they will become releas 25 prises a cylindrical member‘ 15 having a cap l6
ably and tightly joined‘together.
covering‘its inner end’ portion I1 and‘ with‘its
Still another object is to provide means to . outer end portion 13 adapted‘to freely enter one
tightly, but releasably, join together a‘ cylindrical
end of the tubularsection II. A ‘relativelysha‘h
low slot is is provided in the end portion I8 of
constructed by rolling a strip of paper or like 30 the member I5 extending diametricallyacross
handle, or tip, to a hollow cylindrical member
material into a tube,
A further object is to provide an improved
wand, or the like, which will be relatively inex
the end face thereof. , A short length of loosely
twisted string 20, preferably cotton,‘ is tightly
compressed into the ‘slot IS ‘with its ends'ZZ and
pensiveto ‘manufacture, simple in construction,
23 extending slubstantiallyequally at each] side '
practical, pleasing in appearance, and very e?i
of the’ end portion'IS of the member 15 and ly
ing between'the inner layers l3 of the tube H
and this portion I8, when said portion I8 is in
cient and durable in use.
With these and other objects in view, which
‘ will appear as the description proceeds, there
have been illustrated in the accompanying draw
ing three forms in which the features and princi
‘ples of this invention may be embodied in prac
In the drawing:
serted into said tube I l.
A relative rotation of the member l5 and the
~10 tube II, when the portion l8 of the former is in
the latter, will cause the inner layers [3 of the
tube II to be tightly wrapped upon the portion
l8 to releasably secure the tube H to the tip [4.
Figure 1 is a side view of a wand embodying
By making the string ends 22 and 23 substan
tially as long as the length of the portion l8 only
a slight relative rotation is required, approxi
view of the jointure between one section of the
mately one-quarter of a turn. A reverse rotation‘
wand and another section thereof;
will unwrap the layers I 3 from the portion 18
Figure 3 is an enlarged cross-sectional view
whereby the tip I4 may be drawn away from the
taken on the line 3—3 of Figure 2;
50 tube H to withdraw the'portion I8 therefrom.
Figure 4 is a longitudinal sectional view of a
The string 28, due to its action on the layers
somewhat modi?ed form of wand or like article;
13 of the material constituting the tube H, may
Figure 5 is a cross-sectional view taken on the
‘ be termed a friction imposing means as it trio
the features and principles of this invention;
Figure 2 is an enlarged longitudinal sectional
line 5-5 of Figure 4;
Figure 6 is a longitudinal sectional view of an
tionally engages the innermost layer I3 to wrap
it tightly upon'the tip portion I8 to ?rmly lock
tubular member to‘tightly wrap said inner layer
upon the cylindrical member and secure the
members together, when one member is rotated
the tip 14 to the tube II. In the form shown in
Figures 4 and5 the friction imposing means is
constituted by a plug24 of resilient material such
_ as rubber or like material. The plug 24 extends
through a hole 25 provided in the end portion 26
relatively. to the other.
i I
3. In an article of manufacture, the combina
tion of a tubular member constructed by tightly‘
' of a wand tip, cane handle, or section of a jointed
rolling a sheet of material into a tube, the outer 7
rod and frictionally. engages the innermost layer
layers being bound together by an adhesive and
_ 13 of the material of the tubell. In the form
the inner layers being left loose as rolled, a cylin
shown in Figures 6 and 7 the friction imposing
.meansis constituted by astrip 21 of felt, rubber, 10. drical member having an end adapted to be in
fabric, or like materials. The strip 21 is prefer? ‘ s'erted into an end of said tubular member, and
-_ ably seated in algroove 28 provided in the poréi, 1 ‘ ifriction imposing means secured to the cylindri
tion 18 for this purpose. Preferably the groove V cal member and in frictional engagement with
the innerrlayer ofjthe material constituting the _
28 extends lengthwise of the portion‘ [8,“ If de
sirable‘a strip 21 may be appliedidirectly upon 15 tubular‘ member to separate said loose inner.
layers from their ‘tightly rolled condition with ' Q
the surface of the portion 18 and‘likewise two"
strips 2'! maybe used diametrically opposite as V the outer layers and tightly Wrap them onto the
V cylindrical member to secure the members to
shownin Figure '7.
gether when one member is rotated in one direc
It will be understood that the novel features
and principles of this invention may be embodied 20 tion relatively to the other and to unwrap the
inner layers from said cylindrical member to
in other speci?c forms without departing from
release one ‘member from the other when one
the spirit and essential attributes thereof, and it
‘member is rotated relatively to the other in the
is therefore desired that the present embodi
ments be considered in all respects as illustrative
and not restrictive, reference'being had to the
other direction,
[Having thus fully ‘disclosed the invention, what >
i f
1. In an article of manufacture, the combina
tion of a‘tubular member constructed by tightly
rolling a sheet-of material into a tube, the outer
layers being bound together by an adhesive and
means is constituted by a short length offstring
is'cla'imed as new and for which it is desiredto
with ‘claims 1,~ and wherein the friction imposing
claims rather than to the foregoing description
to indicate the scope of this invention.’
secure Letters l'atent, is:
4. An article of manufacture in accordance v
secured to the cylindrical member and extending
there-along between it and the inner layer of the’
material constituting thetubular member.
5. An article of manufacture in?accordance
with claim Land wherein the friction'imposing
means is constituted by a ‘strip of material se
cured to the surface of said cylindrical member
the ‘inner layers being left loose as rolled, a
between it and the inner layer‘ of the material
cylindrical member having an end thereof adapt
ed to be inserted into an end of said tubular
member,’ and'friction imposing means between
said members connected to one and‘adapted to
constituting the tubular member.
6. An article ofmanufacture comprising the
combination of a tubular member having its in
terior composed of'wound unconnected layers of
‘frictionally engage the other to tightly Wrap the 40 material, a cylindrical member adapted 'to be,
inserted into said tubular member, and friction
inner layers of‘ the material constituting the
imposing means to releasably connect said mem
tubular member onto the cylindrical member
bers together, said means being disposed between
when one of the members is rotated relatively to
and in engagement with the periphery of said
the ‘other. ‘
2. In an article of manufacture, the combina- » cylindrical member and the inner layer of ma
terial of the tubular member to tightly wrap the
time of a tubular member constructed by tightly
unconnected layers of material of the tubular
rolling ,a sheet of material into a tube, ‘the outer
member onto the'cylindrical member when one
layers‘beingbou‘nd‘ together .by an adhesive and
member is ‘rotated relatively to the other in one
the inner layers being left loose as rolled, a cylin
drical member having an end adapted to be in El. direction and to release, the layers of material » I’
from the cylindrical member when onemember
serted into an end of said tubular memben and
friction imposing means secured to the cylindri
cal member and disposed to frictionally engage
the inner layer of the material, constituting the
is'rotated relatively to the other in an opposite
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