Abstract: A method for executing a transaction on a blockchain or other distributed ledger that enables a user holding only non-native tokens to execute the transaction. A backend wallet managed by a backend server maintains different native token types for different blockchain types and is used to execute the transaction on behalf of the user. The backend server then reconciles the cost with the user's own wallet.

Abstract: A method for executing a transaction on a blockchain or other distributed ledger that protects the user from other blockchain users attempting to front run or rerun an approved transaction. A backend server searches the blockchain for existing transactions that use the same approval.

Abstract: A method for executing a transaction on a blockchain or other distributed ledger that reduces transaction gas fees. A backend server estimates gas fees based on recent successful transactions and obtains user approval before submitting the transaction to blockchain.

Abstract: A method for using metadata to consolidate two transactions into one to execute a smart contract as a single transaction on a blockchain or other distributed ledger. Compared to the previous two-step smart contract execution process, this one-tap process (such as for staking an amount to a pool) allows specifying a predefined amount to execute instead of an exploitable infinite amount.

Abstract: A method for securing a split private key (such as used with a cryptocurrency or other non-custodial electronic wallet) amongst a password, biometrics, and a social service. The process may use a sharding scheme such as Shamir's Secret Sharing to ensure that multiple key shards must be obtained before the entire private key can be obtained. The user may select the number of shards required to retrieve the private key thereby controlling the security of the account. An additional shard may be held on an encrypted server and allows for account recovery even while maintaining non-custodial ownership of the wallet.

Abstract: Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.

Abstract: Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.

Abstract: A method for securing a split private key (such as used with a cryptocurrency or other non-custodial electronic wallet) amongst a password, biometrics, and a social service. The process may use a sharding scheme such as Shamir's Secret Sharing to ensure that multiple key shards must be obtained before the entire private key can be obtained. The user may select the number of shards required to retrieve the private key thereby controlling the security of the account. An additional shard may be held on an encrypted server and allows for account recovery even while maintaining non-custodial ownership of the wallet.

Abstract: Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.

Abstract: Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.

Abstract: Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.

Abstract: In one embodiment, a case transfer apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a motor disposed on the base, a rotatable feed wheel assembly disposed on the base and coupled to the motor, the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device, and a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated.

Abstract: In one embodiment, a case transfer apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a motor disposed on the base, a rotatable feed wheel assembly disposed on the base and coupled to the motor, the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device, and a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated.

Abstract: This invention relates to a flood barrier and method of flood protection. According to the invention there is provided a flood barrier comprising a plurality of pillars adapted to be secured adjacent to a doorway of a building. Each pillar has a first sealing member for its bottom surface, and a second sealing member for its longitudinal surface. The pillars can be separable, or they can be interconnected to form a unitary structure by a flexible and resilient securing beam.

Abstract: Video/audio production processing control synchronization apparatus and methods are provided. Processing control commands that are provided to a first installation of production processing equipment for controlling production processing of edit units of first production signals are echoed to another installation, or possibly multiple other installations, of production processing equipment. Timing information associated with the edit units is also provided to the other installation(s), to enable production processing of delayed production signals by the other installation(s) to be synchronized with the production processing by the first installation of production processing equipment. Multiple production processing equipment installations can be controlled and synchronized from a single control interface.

Abstract: A method and apparatus for annealing cylindrical cases for ammunition cartridges or other tubular casings is provided. In one embodiment, a case annealing apparatus is provided. The case annealing apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a rotatable feed wheel assembly disposed adjacent a second end of the feeding device, a linear slide mechanism disposed adjacent the rotatable feed wheel assembly defining a portion of a case receiving region, and a heating device disposed adjacent the case receiving region, the heating device operable to heat a portion of a case retained in the case receiving region.

Abstract: This invention relates to a tube finning machine, i.e. to a machine adapted to fit one or more fins onto one or more tubes. The tube finning machine has a base with a primary axis and a mounting part upon which a plurality of tubes can be mounted in a desired array. The tubes are aligned with the primary axis. A carrier locates a number of fins and a drive means, suitably hydraulic, moves the carrier relative to the mounting part in the direction of the primary axis in order to drive the fins onto the tubes. The machine can be adjusted to fit a variable number of fins to a variable array of tubes. The mounting part and the carrier are both movable relative to the base in the direction of the primary axis, and the mounting part is movable relative to the base between a number of predetermined mounting positions. The length of the tubes to which fins can be fitted is therefore also variable, and may for example be up to 12 metres.

Abstract: This invention relates to a method and machine for manufacturing a heat exchanger block, to fins for manufacturing a heat exchanger block, and to a heat exchanger block. There is provided a method of manufacturing a heat exchanger block(12) comprising a number of tubes (16) and a number of fins (14; 214a, 214b; 314a,314b), neighbouring fins being separated by a predetermined spacing by way of spacer means (52; 52a, 52b), the method including the steps of: locating a predetermined number of tubes in a chosen array; locating a number of fins adjacent an end of the tubes; fitting the fins onto the tubes; and vibrating the tubes and/or the fins during the step of fitting the fins onto the tubes.

Abstract: This invention relates to a method of manufacturing a heat exchanger block, to a spacer means for use in the method, and to a heat exchanger block. The heat exchanger block comprises a number of tubes and a number of fins, the fins having a predetermined spacing determined by the spacer means. The method includes the steps of locating the fins in a carrier and pressing the fins onto the tubes, and providing spacer means for the fins, whereby the spacer means supports a fin during the pressing step and determines the spacing between the fins in the assembled heat exchanger. Each of the fins has apertures for the tubes, the apertures engaging the tubes. Each of the spacer means has openings for the tubes, the openings being larger than the apertures.

Abstract: Video/audio production processing control synchronization apparatus and methods are provided. Processing control commands that are provided to a first installation of production processing equipment for controlling production processing of edit units of first production signals are echoed to another installation, or possibly multiple other installations, of production processing equipment. Timing information associated with the edit units is also provided to the other installation(s), to enable production processing of delayed production signals by the other installation(s) to be synchronized with the production processing by the first installation of production processing equipment. Multiple production processing equipment installations can be controlled and synchronized from a single control interface.