摘要:
A carboxy-modified aluminum-based catalyst composition is of the general formula P(O)(OAlR′R″)3 or RP(O)(OAlR′R″)2 wherein O represents oxygen, P represents pentavalent phosphorous, Al represents aluminum, R comprises hydrogen, an alkyl group, or an aryl group, and R′ and R″ independently comprise a halide, an alkyl group, a haloalkyl group, an alkoxy group, an aryl group, an aryloxy group, or a carboxy group, so long as at least one of R′ and R″ is a carboxy group. The carboxy-modified aluminum-based catalyst composition is, generally, the reaction product of phosphoric acid or a pentavalent phosphonic acid, a tri-substituted aluminum compound, and a carboxylic acid.
摘要:
A coin mechanism capable for simultaneously accepting two coins in generally opposed coin slots measures the diameter and thickness of each coin at the commencement of the actuation of the coin mechanism and includes a rocking blade to obstruct one of the coin slots so as to prevent unauthorized removal of a coin.
摘要:
A coin chute construction for a dispensing machine and method of making same are provided wherein such machine requires at least one coin of predetermined size and valuation to initiate one operation of the machine for one item of goods or service. The construction comprises improved structural components associated with holding, moving, and testing each coin at a test station; and a coin knockout device which prevents a coin jammed in a slider of the machine from being used to provide more than one operation of such machine.
摘要:
A coin chute construction for a dispensing machine and method of making same are provided wherein such machine requires at least one coin of predetermined size and valuation to initiate one operation of the machine for one item of goods or service. The construction comprises cooperating structural components for providing movement of the coin away from and then back toward a rectilinear path during movement of a slider of the construction which carries such coin from an inoperative position to a test position for the coin prior to initiation of the one operation of the machine.
摘要:
The present invention is directed to a device for locking and releasing objects intended for public use, such as luggage carts which can be taken from a common stowage space and returned to the same. The device comprises a locking apparatus allowing each object to be automatically locked to an adjacent object or to a fixed point in compact storage position. A coin or the like is introduced into the locking apparatus to allow unlocking of the same and the concomitant release of the object by exerting a pull thereon. The locking apparatus returns the coin when the object is returned to the stowage space and is locked to an adjacent object or to the fixed point. Unlocking of the object is accomplished by just exerting a pull thereon after the coin has been appropriately inserted into the locking apparatus.
摘要:
A coin machine for collection and checking of different types of coins and for release of a device for dispensing goods when the proper number of coins for the item purchase price is inserted into the coin machine. The coin-checking device comprises a carrier plate arranged vertically between a housing front and back wall, wherein at least on one side of the carrier plate there is located parallel thereto a coin-checking plate which can be tilted. Adjacent to the coin-checking plate there is located parallel to the carrier plate a coin-channel plate which is fitted with inclined slots, through which extend angular protrusions of a lower plate and which form the bottom of the running channels for the coins. The coin-channel plate is also parallel to the carrier plate and can also be swiveled. Furthermore, there is provided a sensing and blocking mechanism consisting of a plurality of hinged, vertically mounted, spring-loaded levers which have attached bolts at their lower ends, the bolts extending through the inclined slots of the coin-channel plate, and which act on a blocking lever for releasing or locking a control bar which, in turn, controls the opening action of the dispensing plate of the coin machine. Depending on whether the levers sense or do not sense coins in the coin channels, the dispensing flap of the coin machine is controlled to be opened or closed.