Mimic watch set for magic use
US5528562A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Jul 25, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B47/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a mimic watch having hour numerals "1" to "12" marked therein, a rotary disk having an hour hand fixed thereon is installed rotatably. When used for a play, the mimic watch is put into a protective case. Watching the hour hand and numerals through the rear transparent case member of the protective case, the player operates an operating string loop, with care for the audience not to be aware of the player's operation, to set the hour hand to a numeral the audience has selected. At this time, only the hour numerals will be visible through the transparent area on the front transparent case member of the protective case but an opaque area formed on the front transparent case member will hide the hour hand on the rotary disk being rotated. When the mimic watch taken out of the protective case is shown to the audience, the audience will see the hour hand point at the numeral he or see has selected, which will give the audience an illusion that the mimic watch has automatically pointed at that numeral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.