Rochester Avionic Archives

Master Time Recording Clock

Master Time Recording Clock - Photo 1
Master Time Recording Clock - Photo 2
Master Time Recording Clock - Photo 3
Catalogue NumberC0820
Sub-categories
Year of manufactureCirca 1960
LocationMain Store
Object TypeIndicator/Instrument
DivisionUnknown
Platform
Manufacturer
Part NoModel 37
Serial No10424
Dimensions
Width (mm):315
Height (mm):1590
Depth (mm):155
Weight (g):26420
Inscription(s)Made in England Magneta Trade Mark Time Company Ltd Goblin Works, Leatherhead. Division of the British Vacuum Cleaner & Eng. Co. Ltd. BVC Trade Mark
NotesThis is a Master Time Clock which was installed on the Ground Floor of Tower 1 at Rochester and it would have driven a number of Slave Clocks located around the site. The clock is a type 37 electrically controlled master clock having a 1 second beating pendulum. It provides 1 second, 6 second and half minute pulses for the operation of the slave pulse clocks. The RAA does not hold any of the original slave clocks. These clocks replaced the old mechanical clocks in the 1960's The pendulum on its rod weighs about 5kg.The clock is in working order.

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.

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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Our collection exceeds 1890 pieces of equipment from HUDs to Air Data Computers, and we also have a substantial archive of Brochures, Company Newspapers, Films, Videos and photographs.

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