GB2251088A - A rigid translucent illuminated comparison screen - Google Patents
A rigid translucent illuminated comparison screen Download PDFInfo
- Publication number
- GB2251088A GB2251088A GB9027384A GB9027384A GB2251088A GB 2251088 A GB2251088 A GB 2251088A GB 9027384 A GB9027384 A GB 9027384A GB 9027384 A GB9027384 A GB 9027384A GB 2251088 A GB2251088 A GB 2251088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- treasury note
- comparison
- grid
- pressure sensitive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005286 illumination Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 abstract description 3
- 238000012790 confirmation Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/32—Fiducial marks and measuring scales within the optical system
- G02B27/34—Fiducial marks and measuring scales within the optical system illuminated
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
A rigid translucent screen 1, marked on the upper surface with a sizing comparison grid is flexibly mounted so as to bear upon pressure sensitive switching device 9 which control electrical illumination 10 situated adjacent to the lower surface. The screen may be installed as the upper working surface of a self-contained unit, or it may be installed as part of a suitable cash handling apparatus or furniture. A Treasury Note may be held against the upper surface of the screen for confirmation of its plane dimensions by comparison with the grid is illuminated at the same times by light passing through the screen in such a manner as to make visible the watermark and metal strip, or other such similar devices as may from time to time be used to characterise and identify a genuine Treasury Note. <IMAGE>
Description
A RIGID TSSLUCGT ILLUMINATED COl~2ESO' This invention relates to a rigid translucent illuainated comparison screen.
Verification of the authenticity of Treasury Notes, tendered in payment or in circumstances akin to payment-, is inefficient and haphazard in practice. The size of the Note is only determined bX direct comparison with a second note, and rarely is a practical procedure. The other definitive chiTacteristics of a Treasury Note, namely the water-mark and the metal strip, are confirmed to be present only by holding the
Note at arms length so that it gan be viewed against the general lighting of tee premxeeJa When staff are inexperienced and or busy this exercise, if performed at all, is generally done in a perfunctory manner.Additionally such examination frequently causes offence to the person tendering the Note.
These circumstances create little reluctance or discouragement to the passing of counterfeit currency; so that now this is a matter of serious concern to traders and law enforcement officers
According to the present invention there is provided an oblong translucent screen, marked on the upper surface with a sizing comparison grid, mounted so as to allow movementin a direction at, or approximatley near, night angles to its planar surface, bearing on one or more pressure sensitive switching devices which control electrically powered illumination situated adjacent to the opposite lower planesurface. The screen is no less robust, translucent, and wear resistant than Acrylic sheet manufactured in accordance with ISO 9002-SS5750 Part2 and of a thickness not less than 3mm.The sizing grid marked with a means which is permanent and opaque, consists of a baseline, upon and above which are set four pairs of right angles, placed in such a way that each pair is cangrtient with two diagonally opposite corners of a current Treasury
Note The pairs of right angles are each marked with numerical value of the Treasury Note to which their placement equates.
A specific embodiment of the invention will now be descibed by way of example with reference to the accompanying drawing in which:
Fig 1 shows in plan view the screen upper surface withbaseline and
grid markings thereon.
Fzg 2 shows in schematic cross section the screen mounted on a strong
container, with the relative positions of the screen edge and pressur sensitive swithhing devices exaggersted for clarity.
Fig3 shows in schematic plan view the construction of figure2 with
the screen removed.
Fig4 shows a front elevation of the construction shown in Figs 2 &
Fig5 shows in schematic cross section the screen mounted as an integral
part of suitable cash handling apparatus or furniture
Fig6 shows in schematic plan view the construction shown in Fig 5 with
the screen removed.
Referring to the drawing, a Treasury Note is laid upon the screen 1 so that the longer side rests along the baseline 6 in such a way that one corner is congruent with one of the pairs of right angles marked with the numerical value of the Treasury Note, 2,3,4,5. The Note is pressed flat against the screen sp that any creasing is removed or reduced to a sufficient mlnimu=,and the opposite corner diagonal to that first placed is examined for fit against the other right angle matching that first selected. At the same time the pressure being exerted on the upper surface of the screen causes it to move in a direction at, or approximately at right angles to the plane of the upper surface as shown by the direction of the arrow in Fig 2., which causes the pressuresensitive switching devices9to operate the sources of illumination 10:.The illumination passes through the screen with sufficient intensity as will enable the light-detectable characteristics of the Treasury Note to be clearly visible.
When the examination of the Note is complete it is lifted from the screen. The consequential reduction of pressure on the upper plane of the screen is transferred to the pressure sensitive switching devices and the illumination is therebye extinguished.
In Fig 2 the screes 1 is mounted on hinged 11 upon a robust box 7 constructed of metal or suitable plastic material. Electrical power supply to the components fixed within the box is controlled by a double pole swtch 12, and two neon type warning lights 8 are connected to show respectively that power is available to the device and that power is available to internal components,
In Figs. 5 and 6, the screen is illustrated as being constructed as an integral part of suitable cash handling apparatus or furniture, being mounted on spring-mounted or simalar mounts 13, and located by vertcal grooves 14 or similar means. In all Figures the electrical circuits are not shown, but it conforms to such Standards and good practice as may necessary and desirable.
Claims (1)
- ClAIMS1. A rigid translucent screen with comparison markings on the upper surface is mounted va such a way as to be capable of being moved in a direction at or approxizately at right angles to its plane axis so that the lower surface bears upon pressure sensitive switching devices A A screen as claimed in Claim 1, whereby pressure exerted on the upper srface causes to operate the pressure sensitive switching devices.A A screen as claimed in Claim 1 or Claim 2 is illuminated on the upper surface by sources of iiilwtion adjacent to the lower surface and controlled by pressure sensitiveswitching devices A A screen as claimed in Claim 1 or Claim 2 or Claim 3 whereon is permanentlymarked an opaque grid of horizontal any vertical lines which by comparison serve to establish the plane dimensions of a current Treasury Note.A A screen as claimed in any of the above Claims wherein the pressure of comparing a Treasury Note with the marked grid causes illumination to pass through the Treasury Note A screen substantially as descibed herein with reference to Figures 1-6 of the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9027384A GB2251088A (en) | 1990-12-18 | 1990-12-18 | A rigid translucent illuminated comparison screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9027384A GB2251088A (en) | 1990-12-18 | 1990-12-18 | A rigid translucent illuminated comparison screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9027384D0 GB9027384D0 (en) | 1991-02-06 |
| GB2251088A true GB2251088A (en) | 1992-06-24 |
Family
ID=10687162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9027384A Withdrawn GB2251088A (en) | 1990-12-18 | 1990-12-18 | A rigid translucent illuminated comparison screen |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2251088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2335285A (en) * | 1998-03-10 | 1999-09-15 | Rad Tec Products Limited | Mammogram viewing reference system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB613448A (en) * | 1945-02-16 | 1948-11-29 | Odd Adelstein Andersen | Improvements relating to viewing or drawing tables or boards |
| US4164822A (en) * | 1978-01-04 | 1979-08-21 | Batton James L | Portable map reading system |
| GB2170340A (en) * | 1985-01-30 | 1986-07-30 | Garry Robert Langridge | Forged banknote detector |
| GB2170939A (en) * | 1985-01-21 | 1986-08-13 | Christopher William Yeomans | Bank note counterfeit detection device |
| GB2202070A (en) * | 1987-02-11 | 1988-09-14 | John James Kelly | Map reading apparatus |
-
1990
- 1990-12-18 GB GB9027384A patent/GB2251088A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB613448A (en) * | 1945-02-16 | 1948-11-29 | Odd Adelstein Andersen | Improvements relating to viewing or drawing tables or boards |
| US4164822A (en) * | 1978-01-04 | 1979-08-21 | Batton James L | Portable map reading system |
| GB2170939A (en) * | 1985-01-21 | 1986-08-13 | Christopher William Yeomans | Bank note counterfeit detection device |
| GB2170340A (en) * | 1985-01-30 | 1986-07-30 | Garry Robert Langridge | Forged banknote detector |
| GB2202070A (en) * | 1987-02-11 | 1988-09-14 | John James Kelly | Map reading apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2335285A (en) * | 1998-03-10 | 1999-09-15 | Rad Tec Products Limited | Mammogram viewing reference system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9027384D0 (en) | 1991-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |