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Epicycloidal levers

Epicycloidal levers

1762

Drain Cock Levers for Triple-Expansion marine steam engine

Drain Cock Levers for Triple-Expansion marine steam engine

1924-1928

Double-ended trepanning lever

Double-ended trepanning lever

1601-1700

Compound lever demonstration model for explaining the function of different combinations of levers, unknown maker, before 1753. Once belonged to Stephen Demainbray.

Demainbray's compound lever

1701-1752

Metal lever associated with a surgical instrument from a surgical pannier, 1905 pattern, but for use during the First World War, 1914-1918.

Lever-type surgical instrument

1914-1918

Plated metal lever, possibly part of forceps

Plated metal lever

Dust lever, for articulated human skeleton, by T Gerrard & Company, England, United Kingdom, 1980

Dust lever by T Gerrard & Company, 1980

1980

Metal standing lever. A long lever bar sitting in a retangular pedestal base. The unit could be secured by putting screws in the holes at the pedestal base.

Metal standing lever

1920-1930

Constant Pressure Hydrogenation red lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Red Lever from Emergency Blow-down Panel

1st Hydrogenation red lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Red Lever from Emergency Blow-down Panel

5 & 6 Reactors 1st Carbonylation blue lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Blue Lever from Emergency Blow-down Panel

Main 1st Carbonylation blue lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Blue Lever from Emergency Blow-down Panel

2nd Hydrogenation red lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Red Lever from Emergency Blow-down Panel

Compound Lever, consisting of 3 levers, 2 pivoted on single pillars, & 1 pivoted on cross-arm of 2 pillars, on wooden base (original brass balance weight missing).

Compound lever, 1762.

1762

Lever with 2 pawls

Lever with 2 pawls

Kymograph recording lever, from bag of boss heads, time marker, lever, rackwork, from Physiological Society, London, United Kingdom, 1920-1970

Kymograph recording lever

1920-1970

5 & 6 Reactors 2nd Carbonylation blue lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Blue Lever from Emergency Blow-down Panel

Main 2nd Carbonylation blue lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Blue Lever from Emergency Blow-down Panel

Constant Pressure Carbonylation blue lever, for emergency blow-down panel from the coal to oil hydrogenation plant at Billingham, Cleveland, England.

Blue Lever from Emergency Blow-down Panel