US1603535A - Device for creating an optical illusion - Google Patents

Description

E HABERFELD DEVICE FOR CREATING AN OPTICAL ILLUSION Flled March 11, 1926 Oct. 19 1926.

Patented a. 19, 1926.

E'UGEN HAIBERFEL D, OF BERLIN-HALENSEE, GERMANY, ASSIGNOR TO LATHAM LITHO & PRINTING CO.,-' OF NEW YORK, N.

DEVICE FOR CREATING Y., A CORPORATION OF NEW YORK.

AN OPTICAL ILLUSION.

Application filed March 11, 1926. Serial No. 94,072.

' My invention has for its object to produce a device for creating an optical illusion of a liquid continually travelling in one direction which I accomplish by applying alcertain amount. of heat to a liquidcontainer into which extends a narrow tube into and through which the liquid is forced by the heat applied to the container. The container is provided with a tubular extension into which the liquid passes. As the liquid reaches a certain point in said tubularextension it has sufficiently cooledofi so as to return along the wall of :the'tubular extension and through the narrow tube to the con- -"tainer, while-other liquid passes throu h said tubular extension in the opposite rection.- If the tubular extension is made of glass or other transparent material, there is created the illusion of a continual flow of liquid through the tubular extension, as the small amount of.liquid returning to the container along the inner wall of the tubular .extension does not become visible, except perhaps on very close examination. Such a device may be used as an advertising device,

to create, ,for instance, the illusion of a person continually sucking up a liquid through a straw, but, of course, other uses for such a device will readily suggest themselves. 4

In describing. my invention in greater detail, I have reference to the accompanying drawing, in which an embodiment ofthe invention has been illustrated, by way of ex-.

ample, Fig. 1 showing a woman "at a soda fountain drinking froma lass through a straw; Fig. 2 is a sectiona view, showing the arrangement of the glass and the straw and the source of heat; Fig.3 is'a longitudi- 40 nal section through the container representing the straw.

The faceof a woman with a window in the background is pictorially presented on a large cardboard,-supported 1n position in a show-window or at any other suitable lace by a wing 2 (Fig. 2,). On a shelf 3 in out, there is placed a cup 4 which may be either opaque or translucent. Within said cup is disposed the liquid container 5, which in the drawing, is shown bulb-shaped, but may of course, have any desired or convenient shape to suit the conditions. Into this, container 5, adapted to hold a certain amount of liquid shown at 6 in Fig. 3 projects a narrow .tube 7, the lower end of which is immersed into connected by wires 13 to the liquid 6. At the upper end of the container 5, where the narrow tube 7 terminates closing the container by.a circular flange 8, the container is provided with a transparentjubular extension 9 which is considerably larger than the narrow tube 7 and which is sealed at'its extremity as shown at '10 in Fig. 3. Below the bulb-shaped con tainer 5 is disposed a. (Fig.2) held in an ordinary lamp-socket 12 source of electrical energy.

small electric lamp 11' some;v convenient When the electric lamp v11 is connected,

the heat radiated thereby heats the liquid in the bulb-shaped container 5 sufliciently to force the same up into the narrow tube 7, and as more and more liquid is thus forced through said tube, it enters the large tubular extension 9; rising therein to a certain height indicated at 14 in Fig. 2. The upward direction of flow of. the liquid in the tubular'extension 9 is indicated by the large arrow.15 in Fig. After the liquid has risen to a certain height in said tubular extension 9, it cools oil and :slowly glides down along the inner wall of extens on- 9 and through the narrow tube'7 back into the container 5, this direc'tiomof flow of the liquid being indicated by the small arrows indicated at 16 and 17 in Fig. 3. Thus' the illusion of a substantially uninterrupted upward flow of liquid in the tubular extension 9 is created, so that the casual observer in case of the illustrated example receives the impiress'on of liquid being continually s 0 ed p throughthe tube 9.

I claim as my invention:

1. The combination of a closed liquid container, anarrow tube extending into said container being immersed into the liquid therein, a tubular extension provided on said container and closed at its free end, a source of heat for heating the liquid in said container, and means for po'sitloning said source of heat in proper relation to said container. v

2. The combination of a closed liquid container, anarrow tube extending into said container being immersed into the liquid therein, vided on said container and sealed at its free end, a source of heat for heating the liquid in said container and means for o sitionin said source of heat in proper re ation to. id container.

a transparent tubular extension pro- 3. The combination of a closed liquid container, a narrow tube extending into said container being immersed into the liquid therein, a transparent tubular extension provided on said container and sealedat its free end, a source of heat for heating the liquid in said container, means. for maintaining [said source of heat in proper position with #tainer, a narrow tuloe extendin spent to said container,

res ect to said container, and means for-eoncea ing said container and source of heat;

4. The'eombination of a'closed liquid c0n'- into said nontain'er and immersed into'the liquid therein, a transparent tubular extension provided on said container and sealed at its free end,

a source ofheat for heating the liquid in saideontainer, means for maintaining said source of heat in proper position with reeeaasa and translucent I means for oamouflaging said container and source of heat. a

5. Thecombination of a closed liquid eontainer, .a narrow tube extending into said container being immersed into the liquid therein, a transparent tubular extension provided on said container representing a straw and sealed at its free end, an also noses HABERFELDQ

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