Sand timer
1920-1960
Electro/ Mechanical timer from the Midgley Exhibition
circa 1948
Sequential timer programmer
2012
Sand timer
1920-1960
Occultation reaction timer
1950-1975
Sequential timer programmer
2012
Electro/ Mechanical timer from the Midgley Exhibition
circa 1948
Sequential timer programmer
2012
X-ray film developing timing clock
Sequential timer programmer
2012
Laminal lab time switch (cigarette lighter and ash tray)
1951
Trico time switch for controlling flashing light t
circa 1950
Two Smiths Interval Timers
Universal frequency counter
Automatic timer mechanism for lowering semaphore and traffic indicators
circa 1950
Non-exhibition time switch, c.1950.
circa 1950
Trico time switch, TSC 2 24V. c.1955.
circa 1955
Trico Folberth time switch. c.1950.
circa 1950
'Randomiser' Non-Sequential Timer Programmer developed and built by Dr. Jack Tait
2020-2023
Timer, for use during electrotherapeutic treatment
1890-1910
12 hour time with tic-tac escapement
X-Ray exposure timer. Timing 1/20 seconds to 10 seconds
Venner Automatic Timer 8551. 1950.
1950