Abstract: The present invention relates to a vehicle communication system application that enables users or drivers of vehicles to communicate with other drivers of nearby vehicles in a safe and effective manner. The application can be downloaded and installed on the vehicle dashboard or any other user device, such as a mobile phone or the like, and can be used to send and receive messages from one vehicle owner to another nearby vehicle owner, or another nearby business, while driving to a destination. Additionally, the application can be used for local advertising by nearby business owners to promote businesses and can be used to seek help or assistance in case of any emergency situations.

Abstract: A four chamber gas meter comprises a distributor cover and a rotary distributor sliding on the distributor cover. The distributor is driven by a crank which is kinematically connected to the bellows of the gas meter. The hub of the crank is engaged with clearance in a sleeve of the distributor so that the tilting torque applied to the crank is not applied to the distributor itself.