Definition of "sheeted"

`Shall I raise thee,' she said, apparently addressing the corpse, `so that thou standest there before me, as of old? I can do it,' and she held out her hands over the sheeted dead, while her whole frame became rigid and terrible to see, and her eyes grew fixed and dull.

1886 October – 1887 January, H[enry] Rider Haggard, She: A History of Adventure, London: Longmans, Green, and Co., published 1887

[...] Brush No. D5504 was first seen in charge of a rake of sheeted mineral wagons at midday on July 6, [...].

1960 September, “Motive Power Miscellany: London Midland Region: Western Lines”, in Trains Illustrated, page 564