The operator started it by simultaneously pressing two buttons in the cab to initiate the automatic process.

London Transport had built a batch of 12 prototype motor cars, known as the 1960 stock, to test out a number of new features,[5] and it was originally intended that these would form the basis for a production run to replace the ageing Standard Stock.

Five of the six trains of 1960 stock were modified,[8] and automatic operation of the branch began on 5 April 1964.

They were designed for the Victoria line, and each train consisted of eight cars, marshalled as two four-car units.

[12] However, a single controller to allow the trains to be driven manually in the depot or in emergency while in service was provided.

However, on the doors themselves, the windows were curved, so that the top was much higher than previous designs, allowing passengers to see station signs without stooping.

Some were manufactured by AEI, and generated 230 V AC at 850 Hz, which was stepped down to 115 V for the lighting and 58 V for the battery charger.

Following initial preparation for service, they were then transferred to Hainault Depot, where they ran as single units, so that the ATO equipment could be thoroughly tested.

Once passed, they were taken to Leytonstone, from where battery locomotives were used to haul them over Eastern Region tracks to Northumberland Park Depot.

[18] The extension of the Victoria line to Brixton required additional trains, and a further 18 four-car units were built.

Two seven-car trains would be split up, and the uncoupling non-driving motors would be discarded, providing three four-car units.

270 ppm allowed the train to operate up to the same speed, but power could also be re-applied if it had previously been shut off.

[23] All trains were fitted with a fail-safe trip valve connected to the emergency brakes, and the mechanical governor operated this device if the speed exceeded 25 miles per hour (40 km/h) when the 420 code was not being received, if the speed exceeded 50 miles per hour (80 km/h) under any circumstances, or if the speed exceeded 11.5 miles per hour (18.5 km/h) when the train was being operated in 'slow manual' mode.

[24] During 1989, all of the 43 8-car trains were taken to Acton Works, where they were fitted with passenger alarms, a public address system and other safety related features.

Following these changes, two units were selected for prototype refurbishment, which was undertaken by Tickford Rail of Rosyth Royal Dockyard and Vic Berry of Leicester.

The two units resumed service on 9 October 1989, and in June 1990, a rolling stock programme to update all of the cars was awarded to Tickford Rail.

After 27 May 2011, 1967 Stock trains were no longer able to run to stations north of Seven Sisters, because of the commissioning of a new, incompatible signalling system (and decommissioning of the old one) between there and Walthamstow Central.

The last 1967 stock train from Walthamstow Central was formed of units 3075 and 3078, running as set number 246.

[citation needed] The last ever 1967 Stock train in passenger service on the remainder of the Victoria line (Brixton to Seven Sisters) ran on 30 June 2011.

After having reached Brixton, the train returned to Seven Sisters for the last time, arriving at approx 1950.

A refurbished motor car in which Queen Elizabeth II travelled during the official opening of the line in 1969, number 3052, is preserved in a non-working condition in the London Transport Museum's Acton collection.

[citation needed] Part of number 3016 is to be fully restored in time for the 150th anniversary of the London Underground, in 2013.