Individuals in France who receive income solely from capital are able to purchase less of each good in free trade relative to autarky. Capitalists are made absolutely worse-off from free trade. These results imply that both countries will experience a redistribution of income when moving from autarky to free trade. Some individuals will gain from trade while others will lose. Distinguishing the winners and losers more generally can be done by referring to the fundamental basis for trade in the model.
Trade occurs because of differences in endowments between countries.
The US is assumed to be capital-abundant and when free trade occurs, capitalists in the US benefit. France is assumed to be labor-abundant and when free trade occurs, workers in France benefit. Thus, in the H-O model, a country's relatively abundant factor gains from trade while a country's relatively scarce factor loses from trade. It is worth noting that the redistribution of income is between factors of production and not between industries. The H-O model assumes that workers and capital are homogenous and are costlessly mobile between industries.