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Патент USA US2117809

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y 17, 1938.
2,117,809
L. ‘KRUG
TRICK DEVICE
Filed July 3, 1937
v
2,117,809
Patented May 17, was
UNITED STATES PATENT orFlcE
2,117,809
TRICK DEVICE
Ludwig Krug, New York, N. Y.
Application July 3, 1937, Serial No.'151,916
8 Claims. (Cl. 272-4)
The present invention relates generally to
urei? showing the parts as seen in the position of
primary object ‘the presentation of an illusion
according to which there is ready and easy pen
etration of an apparently impenetrable body
plat‘ may be either transparent or opaque and
for red of any suitable material although it is
illusion or trick devices such as commonly form Fig ‘re 2.
Referring now to these ?gures, the illusion‘ or
a part of magician's properties, and more par
ticularly to a device of this nature having for its ' tricli is presented in connection with a ?at plate
or
plate.
‘
andithe like generally indicated at III.
This
best}, in carrying the illusion- to its fullest extent,
A further object of the invention is the pro- , that the plate be formed of a rigid transparent 10
such as glass.
‘
vision 'of a device of the above nature which may maitielrial
I.’ e plate
I0 is mounted to. slide in
the direc
be easily and quickly manipulated and its ma-'
nipulation fully and'effectivelyscreened so that
the apparently impossible penetration may be
performed at close quarters and the secret of
tio
of its length within a frame ll whose front
an rear portions substantially overlap the topI
bottom and side edges of the plate in any posi
tion of the latter. The plate ill may be and
its performance easily concealed.‘
is of the full internal ‘width of the
A still further object‘of the invention is the preferably
provision of a simple and inexpensive device frame .il thoughit is substantially shorter than
th frame so as to permit shifting movement of
whose proper manipulation may be easily mas
th plate vertically in the frame from the posi
tered by old and young, skilled and unskilled,‘ tion shown in Figures 2 and 5 wherein the upper
and which will ‘afford amusement as well as edge of the plate. is in' contact with the upper end
amazement to all within view.
of the frame to the position shown in Figures 1
Brie?y the invention proposes a device, in the and‘ 4~where the lower edge of the plate is in
use of which an apparently imperforate and im
with the lower end of the frame; The
penetrable plate and the like is easily penetrated contact
frame I I also has at its front and rear sides ver
by a pencil or other pointed implement while '
tically extending cross members I! and IS, in
overlying and underlying cards and the like ob
scure from view a perforation of the plate ex
posed for the penetration in one position of the .
latter, the perforation of the plate being-con
cealed independent of the cards in another posi
tion of the plate in which the latter is locked
against any movement except when the cards are
senting a centrally disposed guide ring H and
placed to conceal‘the perforation in the ?rst
mentioned position of the plate.
35
7
.
With these general statements it is believed
the device may be_ better understood and more
‘ ' thoroughly appreciated from the following de
} scription in detail thereof, reference being made
' to the accompanying drawing illustrating‘ the
40
same and forming apart of the speci?cation, and
in which
line with one another, each cross member pre
upper and lower arms l5, the latter enlarged or
widened adjacent to the rings H to form simi 30
lar shields l6' above and below the rings. The
rings also have laterally extending and outwardly
curved or ?aring guide ears H for a purpose
which will presently appear.
_
It will be noted from Figures 4 and 5 that the
plate i0 is closely embraced by the front and
rear‘side portions of the frame II and that its
opposite surfaces are similarly closely contacted
by the cross members whose rings H are disposed
approximately at the center of the frame so that 40
with the two‘ .
the shields l6 lie in close contact
i v
surfaces of the glass plate l0 although the cross
‘
Figure l is a perspective view of the device with
the plate in normal locked'position.
I
Figure 2 is a sectional side view through the
pieces ‘as a whole have sufficient resilience to
yield to the introduction of cards l8 between the
etration, one of the concealing cards being in;
cross pieces and the two surfaces of the glass as
seen in Figure 5 and the approximate positions.
of which are indicated by broken lines in Fig-1
dicated in dotted outline.
ure
45 frame showing the plate in its position for pen
.
-
‘
Figure 3 is a transverse sectional view through
the device taken substantially on line 3-4, of
Figure‘2,
and
'
.
,
'
Figures 4 and 5,.are sectional views taken ver
tically through the device-respectively on lines
4-4 and 6-4 of Figure 2, Figure 4. showing the’
‘55. parts in the position as seen in Figure 1 and Fig
2.
'
_
:
‘
One of the shields it has at its inner face a
protruding locking piece or detent I91iust suf 50
ficient to engage‘within an' aperture 20 of the
plate l0 when the plate is shifted downwardly
from the position shown in Figures 2 and 5 to
the position shown. in Figures 1 and ,4, the aper
ture or perforation 20 being then concealed be;
. 2,117,809
neath the lower shields ii. In this position the
plate I0 is locked against upward movement un
til the cards I 8, which may be ordinary playing
cards, are shifted beneath the two cross pieces
and between the latter. and the adjacent surfaces
of the glass plate to so that the locking piece or
detent I9 is forced out of the aperture or per
foration 20 permitting the plate to be shifted
upwardly from the normal locked position of
opening therethrough approximately in the cen
tral area thereof and being otherwise of an im
penetrable material, a rectangular frame in which .
the‘ plate is slidable between‘ two positions, hav!
ing portions embracing and concealing all of the E
edges of the plate in both positions thereof and
also having'cross pieces in yielding contact with
the‘ opposite faces of the plate and including
shields normally concealing the plate opening
10 Figures 1 and 4 to the position shown in Figures - in one position of the latter, and relatively thin
2 and 5 wherein its aperture or perforation 20 cards of penetrable material insertable between 10'
is located approximately at the center of the " the plate and the said cross pieces of the frame for
cross piece rings I4.
\
The plate is at this time in position so that it
may be readily penetrated by a pointed pencil
or other pointed implement generally indicated at
2| in Figure 5 simultaneous with the penetration
of the cards i8 and it is obviously an easy matter
to manipulate or shift the plate Hi to thisiposi
20 tion while inserting the cards in position, without
it being apparent that the plate is being sh‘- fted,
especially in view of the fact that the pla‘e has
concealing the plate opening when the latter is
moved to shift its'opening away from the said
shields.
>
'
2. ‘A device of the character described com
15
prising a plate of rectangular outline having an
opening therethrough' approximately in the cen
tral area thereof and being otherwise of an im
penetrable material, a rectangular frame in 20
which the plate is slidable between two positions,
having portions embracing and concealing all of
been previously locked and nothing is required the edges of the plate in both positions thereof
but the insertion ‘of the cards between thelplate and also having cross pieces in yielding contact
25 and the frame cross pieces to release thefplate'
with the opposite facesof the plate and includé
for movement. It is especially di?icult to uetect ing shields normally concealing the plate open
any movement of the plate under the operator’s ing in one position of the latter, and relatively
manipulation where the plate is formed of ‘iglass _ thin cards of penetrable material insertable be
‘
or similar transparent material.
30
Thus with the pointed pencil or other iiiiple
ment penetrating both of the cards l8 lit is
plain to the observer that the apparently im
penetrable plate ID has also been penetrated and
the operator after withdrawing the pencil or
35 other penetrating implement then removes the
cards l8 and in the same motion with his other
hand shifts the plate Ill downwardly fro
the
position shown ‘in Figures 2 and 5 to the osi
tion shown in Figures 1 and 2. This is of c urse
tween the plate and the said cross pieces of the
frame for concealing the plate opening when
the latter is moved to shift its opening away from
the said shields, one of said shields having means
engageable in the opening of the plate to normally
look the latter in its' ?rst mentioned position
and releasable from the plate upon insertion of 35
a card between the plate and the respective shield.
3. A trick device comprising a plate having a
single aperture spaced from the edges thereof and
otherwise impenetrable, a frame in which the
plate is shiftable in one direction between two 40
positions and in which the edges ‘of the plate'are
' aperture or perforation 20. The result is'that
concealed in both positions of the latter, said
when the cards have been entirely removed the frame having portions crossing opposite faces of
plate III has been shifted downwardly until the the plate and forming shields normally overlying
aperture or perforation Z0 is concealed,
and concealing the aperture of the plate in one
pendent of the cards, by the lower shields l6 position of the latter, and relatively thin pene 45
and the locking projection or detent l9 has en
trable cards of opaque material insertable‘ be
tered the aperture or perforation 20 and com
tween said plate and the crossing portions of the
pleted the locking of the plate in its lowered posi
frame for concealing the aperture of the plate in
50 tion. so that examination in the hands of the another position of the latter.
audience again discloses an unmovable and ap
4. A trick device comprising a plate having a 50
parently impenetrable plate.
single aperture spaced from the edges thereof
The insertion of the cards laterally beneath and otherwise impenetrable, a frame in which the
the cross pieces is facilitated by the ?aring guide plate is shiftable in one direction between two
55 ears I‘! of the cross pieces and it‘ is obvious that positions and in which the edges of the plate are
but little skill, patience and practice is required concealed in both positions of the latter, said 55
‘ to enable the young as well as the old to so frame having portions crossing opposite faces of
shift the plate It! during insertion and removal the plate and forming shields normally overlying
of the cards as to leave the audience unaware and concealing the aperture of the plate in one
60 that the plate has been shifted at all. This is
'_ position of the latter, and relatively thin pene
especially true bearing in mind that the plate trable cards of opaque material insertable be
is rigidly locked at the start of operations and tween said plate and the crossing portions of the
similarly‘locked when the operation has been frame for concealing‘ the aperture of the plate in
completed as well .as the fact that the operator another position of the latter, one of said shields
is not required to_ do anything by way of locking having a‘ locking projection engageable in the
or release of the plate beyond the mere inser
aperture of the plate in the first mentioned posi 65
tion and removal of the cards.
‘
'
tion of the latter and releasable from the aper~
The device as a whole is simple and inexpen
ture by the. insertion of the corresponding card
sive, is calculated to bame all those unfamiliar between the locking projection and the plate.
70 with its secret‘of operation, may be readily made
5. A trick device comprising a ?at sliding mem
of a. durable nature, andlwill obviously be both - ber having an aperture therein spaced from the 70
amusing and amazing in use. -.
edges thereof, and otherwise of an impenetrable
What is claimed is:
.
nature, a frame in which said' member is shift
1. A device of the character described com
75 prising a plate of .rectangularoutline having an able between two' positions, having means em
bracing and concealing the edges of said sliding 75
accomplished before the cards have been ‘fully
withdrawn to expose the otherwise unconcealed
3
2,117,809
member and also having crossing portions along
opposite faces of the member normally overlying
. and concealing the aperture thereof in one posi
‘tion of said sliding member, and relatively thin
penetrable elements insertable between said slid
ing member and said crossing frame portions for
concealing the aperture of the ‘sliding member in
the other position of‘ the latter.
6. A trick device comprising a flat sliding memi ‘
10 ber having an aperture therein spaced from the
edges thereof, and otherwise of an impenetrable
nature, a frame in which said member is shiftable
between two positions, having means embracing
and concealing the edges of said sliding member
15 and also having crossing portions along opposite
faces of the member normally overlying and con
cealing the apertures thereof in one position of
faces of the member normally overlying and con
cealing the apertures thereof in one position of
said sliding member, relatively thin penetrable
elements insertable between said sliding member
and said crossing frame portions for concealing
the aperture of the sliding member in the other
position of the latter, and a locking piece carried
by the crossing portions of the frame for engage
ment in the aperture of the sliding member to
lock the latter in its ?rst mentioned position and
yieldably free of the aperture to release the slid
ing member for movement upon the insertion of
said penetrable elements.
8. A trick device comprising a frame, a plate
of impenetrable material slidable in said frame 15
and having an opening therein, yieldable holding
means carried by said frame on oppositesides
thereof to hold opaque penetrable material on
elements insertable between said sliding member ‘ ' opposite faces of said plate and to conceal said 20
plate opening from view, and locking means car- ‘
20 and said crossing frame portions for concealing
the aperture of the sliding member in the other ried by one of said yieldable holding means for
position of the latter, and means releasable upon engagement in the opening of the plate to lock
the insertion of said penetrable elements for nor-l the plate normally against sliding movement in
the frame and releasable upon insertion of the‘
mally locking the sliding member in its ?rst men
said sliding member, relatively thin penetrable
tioned position.
'
'
'7. A trick device comprising a ?at sliding mem
ber having an aperture therein spaced from the
edges thereof, and. otherwise of an impenetrable
nature, a frame in which said member is shiftable
30 between two positions, having means embracing
and concealing the edges of said sliding member
and also having crossing portions along opposite
pencltrable material between the last mentioned
hold ng means and the plate to permit sliding
,movement of the plate ‘in the frame to shift the
opening of the plate from concealed position to
permit penetration of the penetrable‘material on
opposite sides of ' said plate with said opening
conqealed by the opaque penetrable material.
d
-
_
LU'DWIG KRUG.
25
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