Simple testing device for gold coins

Abstract

Testing device with tipping balance mechanism and movable weight portion (1) for weight control, with a plurality of template testing stations for diameter control (4) and grooves or slots for height control (8), which is characterized in that for the authenticity testing of a wide variety of gold coins the dimensional accuracy of weight, diameter and height can be checked with only one testing device (Fig. 1 and 2).

Description

[0001] The new gold coin testing device (hereinafter referred to as the testing device) is part of the measuring and testing technology. It is based on the principle of a tipping balance with a two-arm lever mechanism and an associated movable weight for weight control. It is also equipped with a variety of integrated templates for checking the respective nominal dimensions of gold coins (hereinafter referred to as coins). Existing problem with conventional testing devices

[0002] Conventional devices, designed as testing templates with a tipping-balance function (two-armed lever) for gold coins (hereinafter referred to as conventional testing devices), have three essential design-related coin testing features: 1. Diameter check - The coin is placed in a template-like recess to check whether its diameter corresponds to the specified size. 2. Weight control - The testing principle uses the law of leverage: A coin with the correct weight, inserted into a template-like recess, causes a tilting movement of the conventional testing device. 3. Height control - A slot or groove is used to check the coin height (coin thickness).

[0003] The main limitation of conventional assay devices is that they are designed for only one specific coin type, e.g., a 1 oz Krugerrand or a 1 oz American Eagle. Therefore, it is not possible to test different gold coins of different weights and diameters, e.g., a 1 oz Krugerrand and a 0.25 oz Krugerrand, using a single conventional assay device. This requires multiple conventional assay devices for different coin types.

[0004] This technical limitation of conventional testing devices results from the rigid design of the testing mechanism with the following characteristics: • The pivot point of the tipping bucket is structurally defined and cannot be adjusted • The load and force arms are designed for a fixed weight distribution and cannot be variably adjusted in their position, mass or length

[0005] Therefore, there are only testing positions for the coin diameter of coins of the same weight, which makes it impossible to test a variety of coin sizes with different masses. List of reference symbols: Fig. 1 = View of the testing device specified in claim 1 “simple testing device for gold coins” Fig. 2 = Top view of the testing device specified in claim 1 “simple testing device for gold coins” Components of Fig. 1 and Fig. 2: 1 movable weight portion 2 Guide as a rail for the movable weight part 3 position marks for correct positioning of the movable weight portion 4 testing stations for coin diameters in template form 5 Matrix component for determining the testing locations of the coins (4, 8) and positioning marks of the movable weight portion 6 Matrix component for determining the gold coin type to be tested 7 Matrix component for determining the target weight of gold coins to be tested 8 test stations for coin height (coin thickness) in slot or groove form 9 Pivot point or bearing of the two-arm lever mechanism

[0006] The test device specified in claim 1 ( Fig. 1 and 2) allows the testing of a wide variety of gold coins through the following innovations: • A movable weight portion (1) that can be moved on a guide (2) with position marks (3) (in correlation with the matrix) and can thus adjust the weight distribution on the load and force arm for the control measurement of the weight of different weight classes of gold coins. • A matrix (5 - 7) color and / or alphanumeric, for each coin type: ◯ for position determination, indicates the correct position mark of the movable weight part (3), ◯ to check the coin diameter, indicate the testing location in template form (4), ◯ to check the coin height, the test location is indicated in grooves or slots (8). • Several test stations for checking the coin diameter (4), color-coded and / or alphanumeric in correlation to the matrix to test different coin types. • Several test stations for checking the coin height (8), color-coded and / or alphanumeric in correlation to the matrix to test different coin types. How it works using an example

[0007] To test a 0.5oz Krugerrand gold coin, the testing device ( Fig. 1 and 2) is placed flat on a level surface with the pivot point (9) facing down. Since the force arm side is initially heavier than the load arm side, the device tilts onto the matrix side (force arm side). Step 1: Determination of test parameters

[0008] Based on the matrix input variables for coin type (6) and target coin weight (7), the correct testing location for the coin diameter (4) is determined using a color and / or alphanumeric coding (5). Step 2: Checking the coin diameter

[0009] The Krugerrand gold coin is placed in the corresponding recess / template (4). If the coin fits exactly, its diameter corresponds to the required size. Step 3: Positioning the movable weight portion

[0010] The movable weight portion (1) is now moved (3) to the position indicated in the matrix by color and / or alphanumeric coding (5). The position marks (3) ensure that the correct setting for the coin weight is used. Step 4: Checking the coin weight

[0011] If the tipping scale sinks after the coin has been placed and the movable weight part (1) has been moved to the coin side (load arm), this confirms the correct coin weight. Step 5: Check the coin height

[0012] The coin is placed into the corresponding test groove or slot for height control (8). If it fits exactly, its height corresponds to the required size. The test groove or slot corresponding to the coin can be read off the matrix.

[0013] After successfully checking the three criteria – diameter, weight and height – a quick and reliable statement about the authenticity of the coin can be made. Conclusion

[0014] The testing of other different coin types can be repeated as often as required with this design. The respective parameters (testing position for the coin diameter, position mark for the movable weight portion for checking the coin weight, and test groove or slot for height control) can be read again from the matrix (5-7).

Claims

[1] Testing device with tipping balance mechanism and movable weight component (1) for weight control, with a plurality of template test positions for diameter control (4) and grooves or slots for height control (8), which characterized by The advantage is that the accuracy of weight, diameter, and height of various gold coins can be checked with just one testing device ( Fig. 1 and 2). [2] Test device according to claim 1, characterized by , that the correct position of the movable weight component (1), based on the coin type and weight to be tested, is indicated by a matrix (5-7) using colour and / or alphanumeric coding. [3] Test device according to claim 1, characterized by that several test stations (>3) are available for diameter testing (4) for different coin sizes. [4] Testing device according to claim 1, characterized by, that several grooves or slots (>3) are available for height testing (8) for different coin types.

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