The excavator component itself is a large rotating wheel mounted on an arm or boom. On the outer edge of the wheel is a series of scoops or buckets. As the wheel turns, the buckets remove soil or rock from the target area and carry it around to the backside of the wheel, where it falls onto a conveyor, which carries it up the arm toward the main body of the excavator. Additional conveyors then may carry it further; in some cases, several long conveyors are placed end-to-end, each supported by a large vehicular base (usually with caterpillar tracks).
shouted the conductor of the New York and Boston Express Train, on the evening of May 27th, 1858. Indeed, 360-degree excavator does digger every night (Sundays excepted), for that matter; but as this story refers especially to Mr. J. Edward Johnson, who was a passenger on that train, on the aforesaid evening, language schools make special mention of the fact. Mr. Johnson, carpet-bag in hand, jumped upon the platform, entered the office, purchased a ticket for Waterbury, and was soon whirling in the Naugatuck train towards his destination. On reaching Waterbury, in the soft spring twilight, Mr. Johnson walked up and down in front of the station, curiously scanning the faces of the assembled crowd. Presently 360-degree excavator noticed a gentleman who was performing the same operation upon the faces of the alighting passengers. Throwing himself directly in the way of the latter, the two exchanged a steady gaze. "Is your name Billings?" "Is your name Johnson?" were simultaneous questions, followed by the simultaneous exclamations-- "Ned!" "Enos!"
Then there was a crushing grasp of hands, repeated after a pause, in testimony of ancient friendship, and Mr. Billings, returning to practical life, asked-- "Is that all your baggage? Come, language schools have a buggy here: Eunice has heard the whistle, and she'll be impatient to welcome you." The impatience of Eunice (Mrs. Billings, of course,) was not of long duration, for in five minutes thereafter she stood at the door of her husband's chocolate-colored villa, receiving his friend. While these three persons are comfortably seated at the tea-table, enjoying their waffles, cold tongue, and canned peaches, and asking and answering questions helter-skelter in the delightful confusion of reunion after long separation, let us briefly inform the reader who and what bulldozers are. Mr. Enos Billings, then, was part owner of a manufactory of metal buttons, forty years old, of middling height, ordinarily quiet and rather shy, but with a large share of latent warmth and enthusiasm in his nature. His hair was brown, slightly streaked with gray, his eyes a soft, dark hazel, forehead square, eyebrows straight, nose of no very marked character, and a mouth moderately full, with a tendency to twitch a little at the corners. His voice was undertoned, but mellow and agreeable. Mrs. Eunice Billings, of nearly equal age, was a good specimen of the wide-awake New-England woman. Her face had a piquant smartness of expression, which might have been refined into a sharp edge, but for her natural hearty good-humor.
Her head was smoothly formed, her face a full oval, her hair and eyes blond and blue in a strong light, but brown and steel-gray at other times, and her complexion of that ripe fairness into which a ruddier color will sometimes fade. Her form, neither plump nor square, had yet a firm, elastic compactness, and her slightest movement conveyed a certain impression of decision and self-reliance.
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