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Time Recording Clock Controller

Technical Information

Catalogue No: C0821
Category: Corporate/Business
Object Type: Module/Sub-Assembly/Component
Object Name: Time Recording Clock Controller
Part No: Model 50
Serial No: 10876
Manufacturer: Magneta Time Company Limited
Division: Unknown
Year of Manufacture: circa 1960
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Main Object Store

Trade Mark
Programme Instrument
Model/Serial M50-10876.
Volts 40. DC.
Watts - - -
British Made


This is the Time Recording Programme Instrument. The core of the unit is the large brass disc which can be programmed with pegs to define 5 minute intervals within 24 hours. The impulse from the clock drives the disc around and an output is generated to the slave clocks. The unit includes a large mercury wetted switch.

It was common practice to have a time recording system for employees which involved stamping a Time Card with the time that the employee arrived or left work.
The cards were stored in numbered racks adjacent to the machines. The wages clerks would calculate the pay for employees from the information printed on each card at the end of each week. The early machines required the employee to insert a card into a slot in a ‘Clock Machine’ and then to manually depress a lever to stamp the card; a process known as Clocking in or Out’. Later machines automatically stamped the card when it was inserted. The Clock Machine had an integral clock and sometimes these were stand alone but in a large organisation it was important that all the Time Clocks registered the same time so they were synchronised to a Master Clock. The Master Clock system included a programmeable unit on which events could be preset such as weekends or National holidays.

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