Lecterns

Two forms of lectern are shown in 516, while 517 gives details of adjustable lecterns where both the height and the angle of the top can be varied. Figure 517:1 shows a variable height top with a boxed-up standard and a 11/4 in (32 mm) central shaft a sliding fit. The movement is controlled by a brass spring plunger engaging in a series of brass sockets let into the central shaft at I1/2 in (38 mm) intervals. In 517:2 the counterweight principle as applied to sliding sash-windows is employed for larger lecterns. The central shaft is slotted to pass freely over a small V2 in (12.5 mm) pulley fixed to a spindle which rides in brass socket bearings let into the sides of the standard. A length of piano wire is attached to the base of the shaft, looped round the pulley and secured to a suitable weight below. These cast-iron cylindrical sash weights are obtainable in a range of weights, but a more exact method is to weigh the complete top and shaft and cast an equivalent amount of scrap lead in a suitable container, embedding a metal hasp for the piano wire at the time of casting. This gives finger-tip control, but the movement must be capable of being locked in any position by inserting a length of metal strip in the side of the shaft, with a brass thumb-screw passing through the side of the standard. A series of holes can be drilled in the metal strip to form locations for the screw. Figure 517:3 shows an adjustable hinged top with the angle of tilt controlled with two brass stays and locking wing nuts.

514 Priest's chair and desk, Pauntley, Gloucestershire, England; designer-maker: Kenneth Marshall

515 Clergyman's desk details

516 Lecterns

519 Adjustable table lectern with centre pillar. Author's workshops

520 Lectern in English brown oak for Liberian Senate House, Monrovia (1952). Designed by Ernest Joyce MSI A. Author's workshops

inlays for St Stephen's, Old Ford, Bow, London, by David Field: photos by Frank Thurston
523 & 524 A pair of oak doors and frames for a Devon church, under construction in the workshop of David Savage, 1986
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