Model engine construction, with practical instructions to artificers and amateurs by Alexander John Henry

Author:Alexander, John Henry. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Steam-engines, Machinery
Publisher: London, New York, Whittaker
Published: 1894-03-25T05:00:00+00:00

sheet brass. The slot is struck to the correct curve, then drilled and filed to outline (see page 139). A snug is left at one end for pivoting to the lifting-links ; these lifting-links, instead of being pivoted to one end of the slot-link, could be pivoted by a short arm to a central snug formed between the eccentric-rod snugs, and in this way the link would be raised and lowered much more easily than when pivoted by one end, and the engine would tend to work with less friction. The use of the short arms, one on each side, is to keep the lifting-links in a lateral line with the slot, and raise the link at the same time from the centre. Both arms must be bent outwards, so as to keep the lifting-links clear of the ends of the valve-spindle and of the eccentric-rods when raised and lowered. The lifting-links are made of sheet-brass strips, pivoted by a fork at the lower end to the weigh-bar, which revolves in bearings on the boiler; a small crank or slotted lever with a pivot is fixed at one end of the weigh-bar, this raises and lowers the link, and is worked by a sheet-brass rod, -f$" broad, pivoted to the reversing-lever on the foot-plate, which works in a racket. The

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