Cylinder duplicating machine

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Cylinder duplicating machine
Manufacturer	(unknown)
Production years	c. 1897
Production location	(unknown)

When cylinder records first appeared there was no easy means of mass production. Records were made by the laborious process in which the artist performed over and over again in front of a battery of recording horns, each connected to a phonograph. About 1897 mechanical duplicating machines appeared. A master record was mounted on one mandrel and a blank cylinder on the other. A rounded sapphire traversed the groove of the rotating master and its motion was communicated by means of a lever to a cutting sapphire engaging with the blank. About 20 copies an hour could be made, but the master record was worn out after a couple of hours.

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[edit] In the Science Museum's Records

Inv. No: 1937-613 Source: W H Manning