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Clock Machine

Technical Information

Catalogue No: C1502
Category: Corporate/Business
Object Type: Indicator/Instrument
Object Name: Clock Machine
Part No: BLS Type 514
Serial No: 20682
Manufacturer: Associated Time Recorders Ltd
Year of Manufacture: Unknown
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Main Store

No. 20682
Modelo BLS
Tipo 5 14
Tension 220
Frecuencia 50 ciclos
Fabricado en Espana
For Sales & Service Contact ATR
Associated Time Recorders Ltd.
Essex: St. Osyth 821220
Kent: Maidstone 79548
Surrey: Hindhead 5323
West London: 01-568-3682


This is a fairly modern Clock Machine which was common around the Rochester site. The Handbook calls the unit a Blauphuc 10.000 register but we have not been able to find out anything regarding the manufacturer. The item was supplied by Associated Time Recorders Ltd. The machine has four programmable settings for clocking in and out and two selectable options for additional recording. The clock itself can be synchronised to an external source or has a crystal controlled clock mechanism. The Clock incorporates a perpetual calendar. The printer mechanism can work on monthly or weekly cards and offers two colours.


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 which had to be accurate as the early clocks were stand-alone and only when electric clocks were introduced could they be synchronised with all others on a large site.



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