An original 1938 British hand-operated respirator manufacturing tool, made by Buss & Elston Ltd of North Circular Road, London N.W.10. This unusual piece is understood to have been used during the manufacture or assembly of British civilian gas masks, specifically for fitting or compressing rubber seals or connecting bands associated with the filter assembly.

The machine is constructed around a substantial grey-painted wooden body with a side-mounted hand lever and a six-jaw radial mechanism formed from shaped hardwood components. Operating the lever draws the jaws evenly around the central former, allowing pressure to be applied uniformly around a circular rubber component without the sharp edges associated with a metal clamp. This type of arrangement would have been particularly suitable for working with rubber seals, sleeves or connecting bands during respirator production.

The underside carries a particularly good series of original markings, including the GRVI royal cypher and 1938 date, together with the manufacturer’s details:

BUSS & ELSTON LTD
N.C. RD. LONDON N.W.10
PROV. PAT. M887/38

Buss & Elston are known to have produced equipment connected with Britain’s pre-war ARP preparations, and the 1938 date places this machine firmly within the period when enormous quantities of civilian respirators were being manufactured in anticipation of aerial gas attack.

The exact individual operation carried out by this machine has not yet been confirmed from surviving contemporary documentation, so we have deliberately avoided attributing it to one specific respirator model or component. However, it was purchased as a gas mask production tool used for fitting rubber seals to filter assemblies, and both its construction and operating mechanism are entirely consistent with that purpose.

Condition is very good for an original industrial tool of this age. The grey-painted wooden casing retains a great deal of its original finish, while the internal hardwood mechanism, lever, spring and fittings remain present and more than functional. There is expected surface wear, marking and some darkening to the working areas from period use, but this adds considerably to the character of the piece. The manufacturer, date and provisional patent markings remain clearly visible.

A particularly unusual piece of British pre-WW2 and Home Front history, offering a fascinating insight into the industrial side of Britain’s enormous civilian respirator programme. Far less commonly encountered than the gas masks themselves, specialist manufacturing equipment of this type makes an excellent addition to an ARP, Civil Defence, gas warfare or British Home Front collection.