Abstract: A method of manufacturing a pressure vessel (10) comprising the steps of dividing a wall (104) of a section (100) of the pressure vessel (10) into a first segment (120) and a second segment (150), separating the first segment (120) from the second segment (150), fitting apparatus (400) onto the first segment (120), and then re-attaching the first segment (120) and the second segment (150).

Abstract: A golf training aid, comprising a ring shaped main body having an inwardly curved arm extending from either side of a central target section, the ends of each arm being separated by a gap to allow a ball, in use, to pass therethrough in order to reach the target section; each arm comprising front and back sections connected by a hinged joint to allow the front section to move relative to the back section thereby to increase or decrease the size of the gap.

Abstract: A method of manufacturing a pressure vessel (10) comprising the steps of dividing a wall (104) of a section (100) of the pressure vessel (10) into a first segment (120) and a second segment (150), separating the first segment (120) from the second segment (150), fitting apparatus (400) onto the first segment (120), and then re-attaching the first segment (120) and the second segment (150).

Abstract: A message brokering mechanism for performing a recovery operation in a transaction processing system including first and second stages operable to exchange message requests and responses. The first stage may receive a message request from a message source and may check whether the message request is a special message request. This may be by way of checking if a recovery attribute of the message request is set. A normal message request may have a recovery attribute that is not set. If the message request is a special message request, it may be dispatched to the second stage. If the message request is a normal message request, it may be dispatched to the second stage if the normal message request is not a repeat normal message request.

Abstract: A message brokering mechanism for a transaction processing system may include first and second stages operable to exchange message requests and responses. The first stage may be operable to receive a message request from a message source and to check whether there is an existing first stage response to the message request. In some embodiments, if there is an existing first stage response, the first stage may dispatch the existing first stage response to the message source.

Abstract: Disclosed is a message brokering mechanism (120, 220) for a transaction processing system (100, 200), comprising first and second stages operable to exchange message requests and responses, wherein the first stage is operable to receive a message request from a message source (110) and to check whether there is an existing first stage response to the message request and, conditional on there being an existing first stage response, to dispatch the existing first stage response to the message source.

Abstract: Disclosed is a message brokering mechanism (120, 220) for performing a recovery operation in a transaction processing system (100, 200), comprising first and second stages (221, 222) operable to exchange message requests and responses. The first stage (221) is operable to receive a message request from a message source (110, 210) and to check whether the message request is a special message request. This may be by way of checking if a recovery attribute of the message request is set. A normal message request may have a recovery attribute that is not set. If the message request is a special message request, it can be dispatched to the second stage. If the message request is a normal message request, it may be dispatched to the second stage only if the normal message request is not a repeat normal message request.