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Title: |
1893 Article-Geiser Mfg. Co., Steam Traction Engine (Part 2) |
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Source: |
The Engineer Magazine, 01 Sept 1893 pgs. 211-212 |
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Insert Date: |
1/2/2015 2:18:58 PM |
It is driven by a single eccentric, with a reversing gear somewhat similar to that described in the last engine. This is shown in section and end elevation in Figs. 12 and 13. The crank shaft is hollow and has within it a rod, which can be moved forwards or backwards. This rod has attached to its outer end two pieces with diagonally grooved faces, between which fits a plate with similarly grooved faces forming part of the eccentric. By moving the rod forward or backward, this plate, and consequently the eccentric, is moved one or other way across the crank shaft. The traction wheels have cast iron hubs, wrought iron rims, and wooden spokes inserted in cups in the rim. The spokes are secured to the hubs by means of a plate bolted to its side, and can be tightened by means of bolts in the hub, which acting on a cone ring bearing against the ends of the spokes, fixes them into the rim.
The compensating gear is mounted on the main axle and is shown in Fig. 14. It is somewhat complicated by the arrangement for permitting motion of the driving shaft relatively to the boiler, so as always to keep the boiler level, as seen in Fig. 15. The driving pinion A gears with the large spur wheel B, whose axle is fixed on the engine frame, on a large hollow pin or trunnion. The motion of the wheel B is communicated through links C to a gimbel ring D, and thence by other links or rods E—which are fitted with springs to take up sudden shocks—to the wheel F in the compensating gear.
Images courtesy of Grace's Guide:
http://www.gracesguide.co.uk/images/4/4a/Er18930901.pdf |
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1893 Geiser Mfg. Co., Steam Traction Engine (Valve Gear)
1893 Geiser Mfg. Co., Steam Traction Engine (Compensating Gear)
1893 Geiser Mfg. Co., Steam Traction Engine (Spring Gear)
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