Abstract: A dynamic delivery authorization system for cryptographic payments comprising: a merchant cashier system configured to allow a merchant controlling the delivery authorization dynamically in conjunction with cryptographic payment confirmations, an intermediary processing system supporting merchants to accept cryptographic payments from consumers utilizing cryptographic wallets to pay for purchases, a cryptographic payment server configured to receiver purchase request from the cashier system, manage the accrual of cryptocurrency network blockchain confirmations, maintain a merchant configurable, order specific and real-time payment and delivery authorization statuses used by merchant payment and delivery authorization system to authorize the release of tangible and intangible goods and services relative to the risk level set by the merchant for each order placed within the cashier system.

Abstract: Systems and methods are set forth for estimating the risk on-line promissory payment transaction (PPT) will default. A systematic approach is set forth using aspects of human survival behavior under stressful life situations enhanced with transaction velocity settings and parameterized business rules before an actual payment is deposited at a financial institution.

Abstract: In an apparatus for drilling in earth, a push-pull linkage, especially a ladder-type linkage consisting of individual sections connected together in each case by a plug-in coupling, is connected to a push-pull drive, and a stationary locking pawl and a thrust pawl which is moveable in the longitudinal direction of the linkage and is connected to the drive, with two mutually opposite directions of action, can each be brought into active connection with the linkage in order to move the linkage forward stepwise and lock it temporarily after each movement step.

Abstract: A safety belt retractor is provided with a dual-tension comfort function. Between the belt reel and housing a retractor spring and an auxiliary spring of weaker spring force than said retractor spring are connected functionally in series via a ratchet wheel. The rotation of said ratchet wheel is selectively blockable by a pawl. The transition between diminished and undiminished tension in the webbing takes place gently, jerk-free and silently because the rotation of the ratchet wheel is inhibited by a brake means as long as the auxiliary spring is not completely or at least almost completely tensioned. Said brake means includes lever-like engagement elements which are pivotally mounted on the ratchet wheel and which are moved by the pressure exerted by the outer periphery of the auxiliary spring in the axial direction to activate a friction brake.