Designed to operate on a 12V AC supply and uses the mains frequency as its timing standard. The unit is housed in a moulded case including mounting flanges. The top of the case carries a tape guide which incorporates a carbon paper disc support and an adjustable anvil for the striker point. This instrument is use for the measurement of velocity and acceleration, using timing marks made on a moving paper tape by a vibrating striker. All moving parts are fully enclosed and a pair of 4mm sockets is provided on the side of the case for connection of the electrical supply.
To show that the level liquid in communicating vessels in constants irrespective of the size of shape of the vessels. Comprising four glass tubes of differing shaped and cross-sectional area projecting vertically from a common horizontal tube. Mounted on a base 230x100x22mm approx., overall height 160mm.
