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"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,…

A piece of timber or iron, used to fasten work together.

Clamp

A piece of timber or iron, used to fasten work together.

A hand-screw clamp has two wooden jaws joined by a pair of opposite threaded screws that maintain a parallel orientation of the jaws when the screw handles are turned in the same direction.

Screw Clamp

A hand-screw clamp has two wooden jaws joined by a pair of opposite threaded screws that maintain a…

"Cross-section of bowling bed showing steel clamp." -Hill, 1921

Steel Clamp

"Cross-section of bowling bed showing steel clamp." -Hill, 1921

An iron bent in the form of a stirrup, horseshoe, or the letter U with two ends perforated to recieve a pin, used to connect a draft chain or whipple tree to a cart or plow.

Clevis

An iron bent in the form of a stirrup, horseshoe, or the letter U with two ends perforated to recieve…

"The usual form of crank-axle bearing which has inward-cups and is cup-adjusting. The end of the bracket is split and the cup after adjustment is clamped in position by the clamping screw S. The usual mode of fastening the cranks to the axle is by round cotters C with a flat surface at a slight angle to the axis, thus forming a wedge, which is driven in tight. The small end of the cotter projects through the crank, and is screwed and held in place by a nut. The chain-wheel at the crank-axis is usually detachable fastened to the right-hand crank." — The Encyclopedia Britannica, 1910

Crank-axle Bearing

"The usual form of crank-axle bearing which has inward-cups and is cup-adjusting. The end of the bracket…

A sort of iron hook or bar, with one or more sharp fangs or claws at one end, which may be fastened into a piece of wood or other heay article. Used for moving.

Sling Dogs

A sort of iron hook or bar, with one or more sharp fangs or claws at one end, which may be fastened…

"Gooseneck of a Spanker-boom. Nautical: (a) A sort of iron hook fitted to the inner end of a yard or boom, for temporary attachment to a clamp of iron or an eye-bolt." -Whitney, 1911

Gooseneck of Spanker-Boom

"Gooseneck of a Spanker-boom. Nautical: (a) A sort of iron hook fitted to the inner end of a yard or…

Padlocks are portable locks used to protect against theft, vandalism, sabotage, espionage, unauthorized use, and harm. They are designed to protect against some degree of forced and surreptitious entry.

Mechanism Depiction of a, Padlock

Padlocks are portable locks used to protect against theft, vandalism, sabotage, espionage, unauthorized…

Compound screws commonly used as clamps.

Compound Screw

Compound screws commonly used as clamps.

A tool having one jaw movable and the other relatively fixed, the two being shaped as to bite together when placed on a pipe and rotated in one direction.

Pipe Wrench

A tool having one jaw movable and the other relatively fixed, the two being shaped as to bite together…

The pipe wrench is an adjustable wrench used for turning soft iron pipes and fittings with a rounded surface. The design of the adjustable jaw allows it to rock in the frame, such that any forward pressure on the handle tends to pull the jaws tighter together

Pipe Wrench

The pipe wrench is an adjustable wrench used for turning soft iron pipes and fittings with a rounded…