gistfile1.js

var fade = function() {
    console.log('fade in');
    return box.fadeIn(1500);
};

var width = function() {
    console.log('width');
    return box.animate({'width': 500}, 1000);
};

dfr = $.Deferred();

var chain = dfr.promise();

chain = chain
        .pipe(fade)
        .done(function() { console.log('this gets called after fade'); });

chain = chain.pipe(width)
chain = chain.done(function() { console.log('finished');});

dfr.resolve();