Wrapping machines

A wrapping machine for wrapping articles in succession, including:

• means for conveying said articles in succession and in spaced relationship along a path,
• means for delivering wrappers in succession to said articles, including means for locating a first part of each said wrapper with respect to one of said articles moving on said path whereby said wrapper is associated with an article,
• means adapted to cause relative movement of a second part of the wrapper with respect to the associated article so as to cause the wrapper to be tightened around at least part of the article,
• said means adapted to cause relative movement of the wrapper comprising means providing at least one surface relative to which said second part of the wrapper is caused to move during movement of the article along said path, said at least one surface being adapted to provide sufficient friction between said at least one surface and said second part of said wrapper to cause drag on said second part of said wrapper, and
• resilient means for applying pressure between said at least one surface and said article to increase said drag on said second part of said wrapper.

A wrapping machine for wrapping articles in succession including:

• means for conveying said articles in succession and in spaced relationship along a path,
• means for delivering wrappers in succession to said articles, including means for locating a first part of each said wrapper with respect to one of articles moving on said path whereby each wrapper is associated with an article,
• means adapted to cause relative movement of a second part of the wrapper with respect to the associated article so as to cause the wrapper to be tightened around at least part of the article, and
• a first pusher for moving an article along said path and a second pusher for moving an article along said path, said second pusher being arranged to take over conveyance of an article on said path from said first pusher, said first and second pushers having complementary shapes to allow each to have simultaneous contact with different parts of said article.

A wrapping machine, for wrapping articles in succession, including:

• means for conveying said articles in succession and in spaced relationship along a path,
• means for delivering wrappers in succession to said articles, including means for locating a first part of each said wrapper with respect to one of said articles moving on said path whereby each wrapper is associated with an article,
• means adapted to cause relative movement of a second part of the wrapper with respect to the associated article so as to cause the wrapper to be tightened around at least part of the article,
• successive conveyors for conveying articles along said path, including independent drives for each of said conveyors and means for controlling at least one of said drives so that at least one of the phase and speed of said conveyors may be varied, so that the position at which an article is transferred between said conveyors may be varied.