An additive composition for a fuel oil composition and that is free of polycyclic carboxylic acids and of acid derivatives thereof comprises an additive that comprises one or more monocarboxylic acids, each having from 10 to 24 carbon atoms, or acid derivatives thereof, optionally in combination with one or both of an anti- oxidant additive and an anti-static additive.

A replaceable skate assembly includes a boot, a base mounted on a bottom of the boot, and a locking device mounted in the base. The locking device includes a positioning rod, a locking pawl, and a spring. Thus, the base may be assembled on and detached from the bottom of the boot quickly, easily and conveniently, thereby facilitating the user using the replaceable skate assembly In addition, the b...

A unique caliper is disclosed for use with a ring brake where the caliper is preferably fixed and two opposed pistons provide the force for applying brake pads to the brake surfaces. The caliper preferably includes internal conduits for hydraulically connecting the opposed pistons. Upper and lower parallel passages through the caliper simplify bleeding and allow the caliper to function as a left o...

A shaping pulley assembly (6) for a belt notching machine, including on a frame (1) a pair of driving and shaping pulleys (3, 4) for a winding belt (5 ), comprises a shaping pulley holder element (9) like a fork supported by the frame (1), having a C-shaped body with end brackets (90, 91), a stationary centre and a removable counter-centre, both being live centres which are housed in respective sa...

The present invention relates to a coin-holding key for users of supermarket carts, consisting in a universal tool that can be used both as support to contain a coin suitable for opening the lock of the attachment device mounted on the cart handle and as faked-coin to open the lock.

An aqueous composition for the chemical removal of metallic surfacing present on the blades of turbines, preferably gas turbines, comprises at least hexafluorosilicic acid and phosphoric acid.

A rapidly replaceable non-return device ( 110 ) for a petrochemical refinery reactor ( 112 ), of the type comprising: a support tube ( 114 ), connected to a portion of the reactor ( 112 ), this support tube ( 114 ) being provided internally with a cartridge ( 116 ) containing a ball ( 118 ), the cartridge ( 116 ) having, around an inlet hole ( 121 ) for a processed fluid, a seat ( 122 ) for housin...