ClipArt ETC
"A, side view of American club-skate; B, bottom of the skate with the runner removed. a, runner; b, heel-plate; c, sole-plate; d, riveting by which the runner is attached to the heel- and sole-plates; e, e, clamps which grasp the sole when they are drawn rearward by the action of the curved slots f upon pins fixed firmly in the sole plate. Both these clamps are pivoted at their rear extremities to a bar g, connected by a winged adjusting screw h, to a collar i, which is pivoted to the heel-clamp j; k, spur which engages the front part of the heel when the heel-clamp is drawn foward; l, toggle-lever, by which the sole-clamps are drawn rear-ward and the heel-clamp forward simultaneously. In B this lever is shown turned out; to clamp the skate to the shoe, it is pressed inward under the sole out of sight." —Whitney, 1889

American Club Ice Skate - View from Side and Bottom

"A, side view of American club-skate; B, bottom of the skate with the runner removed. a, runner; b,…