DCHP-2

tube skate tube-skate DCHP-2 (July 2016)

n. & adj. — Sports, Hockey, historical
an ice skate with a metal tube between the shoe and the blade (see Image 1).
Type: 1. Origin — The data suggests that the first mention of tube skates in newsprint comes from Canadian sources (see the 1903 quotation and Image 1). Given the cultural importance of hockey (and skating sports more generally) in Canada, this etymology is unsurprising. Tube skate, while hardly a very common term today, remains most prevalent in Canada (see Chart 1).
See also COD-2, s.v. "tube skate", which is marked "Cdn".

References:

Images:

Image 1: Newspaper ad from 1925. Source: http://ecbiz132.inmotionhosting.com/~thebir7/birthplaceofhockey.com/wp-content/uploads/2013/04/mens-skt-outfit-1925-ad.gif. Original source unknown.
Chart 1: Internet Domain Search, 12 Oct. 2012