Robert Cocks and Cramer & Co Metronome : The Mechanism

Construction and Variants :

 With the exception of the original Maelzel Metronome construction or very early Victorian variants of his design, two London based companies cornered the market throughout the Victorian era. Robert Cocks & Sons and the Cramer & Co firms. The actual exterior or case designs changed very little, with modifications to the door emblem motifs and slight changes to the door hinge size being the only obvious alterations. The mechanism however differed hugely, to the point of being unable today, to simply swap or mix donor mechanism parts from one to another. These mechanisms were hand constructed and fitted by skilled workers and small differences in the tolerances or year of manufacture makes each metronome virtually unique, not only that, years later and with each mechanism we service acting like a finger-print, we are able to relatively accurately date each unit simply by the construction techniques employed when assembling the mechanism.
 Throughout the Victorian era production, the two firms consistently used only the highest quality materials, solid brass mechanism cogs and parts, chrome plated screws, bronze cast or chrome plated bells and polished steel escapements. The Keith Prowse Company was another London based manufacturer who retailed a metronome very similar to both Cocks & Cramer offerings and may have even been a distributor for the two larger firms. We have observed Cocks mechanism's numbered into the 9000 serial number range, Cramer did not appear to number theirs and Keith Prowse metronome's with a serial number as low as 651 based on a very limited number of surviving examples.

Below are pictures of a Robert Cocks mechanism that dates to around 1890, by this point and at the height of production, many of the parts had become standardized and quite similar so that hot swapping was made a little easier. However the quality remained unaltered. This page is offered as an example of a typical late Victorian production Robert Cocks mechanism and the components employed, and what made them tick !.
Hold your mouse pointer over a gallery image for an enhanced zoom.

 

 Robert Cocks & Sons Metronome Mechanism - Circa 1890
 

 Robert Cocks & Sons Metronome Mechanism - Circa 1860

Coming Soon

 Have one destined for the skip?

 We are always interested in purchasing Antique metronomes considered beyond repair or destined to be discarded. We do require that the mainspring operates and this can be determined by dropping us an email for instructions or help on how to confirm this. The metronome would also need to be salvageable, i.e not run over by a truck. Please do not expect us to pay silly prices due to the work involved in restoring poor quality metronomes, we will require quality pictures to include the mechanism and a brief description of any known issues or faults if possible. We do not purchase metronomes post 1940. Thanks for reading!.

Brass Polishing:

We also offer a brass polishing service, where we remove all exterior brass fittings and polish to a high sheen which seems to be popular when matching a metronome to a piano for display purposes. We do not clean the fittings by default unless we feel the unit warrants it and any item shown on the website without cleaned brass-work is sold as viewed. We will however, under instruction polish fittings once a unit has been purchased for a standard charge of £9.95. Occasionally metronomes can be fitted with nickel silver or copper metal-work and in most cases these are best left to develop a deep handling patina. We will advise if we do not think that a unit would benefit from this service.

Sold Archive

View our sold metronome archive for an idea of the quality and variety of pre-1950 antique metronomes.

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