摘要:
According to one embodiment of the present invention, a method for determining the denomination of a coin with a disk-type coin processing system comprises moving a coin along a coin path with a rotatable disk, generating an encoder pulse for each incremental movement of the rotatable disk, directing a light beam transverse the coin path, detecting the light beam with a light detector, developing a signal at the light detector indicating the presence of a coin in the coin path, counting a number of encoder pulses occurring while developing the signal at the light detector, and comparing the counted number of encoder pulses to a plurality of stored numbers of encoder pulses corresponding to the particular coin denominations.
摘要:
A coin discrimination sensor having an excitation coil and two detector coils arranged to detect eddy currents in a passing coin. The excitation coil is provided a composite waveform formed by adding a low frequency signal (30 KHz) with a high frequency signal (480 KHz). The two detector coils are arranged at different distances from the passing coin, and are calibrated to eliminate the common-mode voltage when no coin is present. As a coin passes by the sensor, eddy currents are induced in the coin which result in phase and amplitude shifts in the low and high frequency components of the detector signal. The low and high frequency components are separated from the detector signal, and their respective phases and amplitudes are ascertained and compared against values stored in a lookup table. These values represent the composition, thickness, and diameter characteristics of known coins, and if the signature of the processed coin does not appear in the lookup table, it can be flagged as an invalid coin.
摘要:
A coin discrimination sensor having an excitation coil and two detector coils arranged to detect eddy currents in a passing coin. The excitation coil is provided a composite waveform formed by adding a low frequency signal (30 KHz) with a high frequency signal (480 KHz). The two detector coils are arranged at different distances from the passing coin, and are calibrated to eliminate the common-mode voltage when no coin is present. As a coin passes by the sensor, eddy currents are induced in the coin which result in phase and amplitude shifts in the low and high frequency components of the detector signal. The low and high frequency components are separated from the detector signal, and their respective phases and amplitudes are ascertained and compared against values stored in a lookup table. These values represent the composition, thickness, and diameter characteristics of known coins, and if the signature of the processed coin does not appear in the lookup table, it can be flagged as an invalid coin.
摘要:
A resilient pad for a disc-type coin processing machine is provided with a first portion with a property having a first value and a second portion with the property having a second value, wherein the first value of the property is different than the second value of the property. The property may include, for example, stiffness or coefficient of friction.
摘要:
The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
摘要:
A fusible coating for bonding fabrics to each other comprises a pattern of fusible spots or dots bonded to a fabric substrate. The dots are widely spaced and arranged in a grid-like pattern. The grid-like pattern is skewed at an angle relative to the direction of weave of the fabric substrate.
摘要:
The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
摘要:
The method of stiffening the ends for shirt collars or the liner therefore is achieved by first forming an elongated polyester stiffening element or stay to be attached to the collar or collar liner. At least one side of the stay is coated with a polyester heat fusible film. The stay is placed within the ends of the collar with the polyester film placed adjacent the material to which the stay is to be at least temporarily attached after which heat is applied at a pre-determined temperature and for a predetermined period, preferably by an electric heating element to the area adjacent the stay thereby softening the polyester film carried by the stay to a point of causing the polyester film to soften and adhere to the adjacent material. The method is carried out preferably by a semi-automatic machine shown and described herein. The stays are placed in a stack at each side of the machine from which a single stay is removed and placed in each end of the collar or liner as the case may be. The machine is provided with a thin shelf at each side of the machine of substantially the same configuration as the collar ends over which the ends of a collar or liner are drawn by a machine element until the outer ends of the collar or collar liner are substantially in contact with the outer edges of the shelf where automatic heating elements are applied to the area of the stay for applying the stay to the collar or lining.
摘要:
The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
摘要:
A CPVC composition having good impact and heat stability includes a siloxane-acrylic copolymer impact modifier and an aluminosilicate zeolite, and a reduced amount of a liquid stabilizer such as a tin compound. Such compositions can be formed into piping for indoor and outdoor water systems including hot water.