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"Rollers of cube-cutting machine." — Encyclopedia Britannica, 1893

Cube-cutting

"Rollers of cube-cutting machine." — Encyclopedia Britannica, 1893

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Frog Hopper on Leaf

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Adult Frog Hopper

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Larval Frog Hopper

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"Glazing Barrels. A, elevation, showing door of case; C, hoppers for loading; B, section through barrel (showing opening in dotted lines)." — Encyclopedia Britannica, 1893

Glazing Barrel

"Glazing Barrels. A, elevation, showing door of case; C, hoppers for loading; B, section through barrel…

"Granulating machine. A, hopper, with raising arrangement; B, endless band; C, C, C, C, four pairs of rollers; D, D, D, short screens; E, E, long screens; F, box for dust; G, box for grain; H, box for chucks; K, bottom board." — Encyclopedia Britannica, 1893

Granulating Machine

"Granulating machine. A, hopper, with raising arrangement; B, endless band; C, C, C, C, four pairs of…

"Breaking-down Machine. H, hopper; B, endless band; R, rollers; M, boxes to receive meal." — Encyclopedia Britannica, 1893

Gunpowder Mill

"Breaking-down Machine. H, hopper; B, endless band; R, rollers; M, boxes to receive meal." — Encyclopedia…

The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae family of hoppers.

Threebanded Grape Leafhopper Imago

The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…

The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae family of hoppers.

Threebanded Grape Leafhopper Imago

The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…

The pupa of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae family of hoppers.

Threebanded Grape Leafhopper Pupa

The pupa of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…

"Nordenfelt Machine Gun. 1-10, parts of frame; 11, breech plug; 12, striker; 13, extractor; 14, cartridge receiver; 15-18, 23-31, lock and trigger parts; 19-22, locking action; 32-35, loading action; 36-39, cartridge receiver; 40, cover; 41-44, parts of hand-lever; 45-49, traversing action; 50-55, elevating and trailing action; 56, 56, hopper and slide." — Encyclopedia Britannica, 1893

Machine Gun

"Nordenfelt Machine Gun. 1-10, parts of frame; 11, breech plug; 12, striker; 13, extractor; 14, cartridge…

"Nordenfelt Machine Gun." — Encyclopedia Britannica, 1893

Machine Gun

"Nordenfelt Machine Gun." — Encyclopedia Britannica, 1893

A grinding mill is a unit operation designed to break a solid material into smaller pieces. There are many different types of grinding mills and many types of materials processed in them. "A, bedstone; b, runner; g, bush; h, spindle; i, driver; j, balancerynd; k, cockeye; l, cockhead; n, eye; p, hopper; q, shoe; s, damsel." -Century, 1889

Grinding Mill

A grinding mill is a unit operation designed to break a solid material into smaller pieces. There are…

"The Common Sand-hopper, <em>Talitrus locusta</em>, which may be met with in thousands upon thousands of European shores, is a well-known example of this family. Although its length is not much more than half an inch, it can leap several inches into the air, and the facility with which it escapes pursuit by burrowing into the soft wet sand is truly wonderful." &mdash; Goodrich, 1859

Sand-hopper

"The Common Sand-hopper, Talitrus locusta, which may be met with in thousands upon thousands…

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel of a motor vehicle, a pipe connecting the interior of the hopper to the storage chamber, an auger disposed within the pipe for transferring the sand from the storage tank to the hopper, and a motor for rotating auger.

Track Sanding Apparatus

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel…