With what type of transport would you associate the term ‘bow collector’?
Bow collector very earliest versions were simply very heavy-gauge wire or steel bars bent into a rectangular shape and mounted long-side-down on the tramcar roof. The height of the collector was such that its top edge would scrape along the wire above. The top section is made of a 1-inch broad (or thereabouts) steel rod, machined to have a bow-shaped cross section, hence the name. This bow shaped rod is referred to as the 'collector plate', and in later models may be up to several inches wide. Unlike many trolley poles, the bow collector does not normally have a revolving base (one
Bow collector wire usually gave a good contact but broke contact when the collector passed the pole. Slackening the wire and deliberately lifting it up clear of the collector at the poles allowed its weight to give a reliable contact over the other collector, spaced to be at the midpoint between poles. A revised collector was in use within the first few years, by 1900. A small hinged bow frame was placed on top of the fixed uprights, giving a sprung contact. Bow collectors did not last though and were replaced with trolley poles. Bow collector A bow collector is one of