Abstract: Aspects of the present invention relate to a valve seat (20) for a poppet valve of an internal combustion engine, wherein the poppet valve comprises a head and a stem behind the head, the valve seat comprising: an aperture (21) configured to form a seal with the head of the poppet valve when the poppet valve is in a closed position; and a peripheral body (22) defining, at least in part, one or more ports (23) shaped like e.g. grooves and sized to enable injection of liquid or gas from a cylinder head of the internal combustion engine into a gas stream behind the head of the poppet valve.

Abstract: A ticket dispenser for dispensing a ticket from a pack of tickets having first and last tickets at opposite ends of the pack and each ticket having opposed first and second edges, the ticket dispenser comprising: a ticket rack assembly having a rack with a support platform for receiving the pack of tickets with first edges against the support platform, and a ticket pack biasing mechanism configured to bias against a face of the last ticket of the C pack and to urge the last ticket towards the first ticket; a ticket housing for preventing unauthorised external access to the pack of tickets, the ticket housing comprising a ticket dispensing slot; and a ticket dispensing mechanism configured to dispense the first ticket from the pack of tickets, the ticket dispensing mechanism comprising a dispensing control member connected to a ticket ejector, the ticket ejector having a ticket edge engagement feature configured to engage with a first edge of the first ticket, the ticket ejector being operable by movement of t

Abstract: A temporary partitioning system is provided, the system comprising a plurality of partition components, each component being an elongate member having outer walls enclosing a substantially hollow interior and having a longitudinal axis, each component being releasably connectable to an adjacent member by a connection means, the connection means comprising a first connection member provided on a first component and a second connection member provided on a second component, in use the first and second connecting members connecting such that lateral movement between the first and second components is prevented, while allowing the first component to move along its longitudinal axis relative to the second component. A temporary partition formed from the components of the system is also provided.