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Date

Tufnol gearwheel

1957

Fabroil A Silent Pinion, 4" diameter x 1 1/2" wide

1922

Gearwheel made from Tufnol

1957

Fabroil 'A' type material

1922

Hardened and ground steel pinion

1926

Sample of Fabroil A type material

1922

Five inch diameter

1926

3" diameter

1926
Two blue prints of Citroen gears

Two blue prints of Citroen gears

Keenok gear wheel, type F.R.5.

Keenok gear wheel

1930
Specimen of Seymour resilient steel gear, showing building up of Seymour's laminated pinion:- section of completed pinion.

Specimen of Seymour Resilient Steel Gear

1921
Wooden pinion with 22 wooden teeth, from an old windmill.

Wooden pinion with 22 wooden teeth

1750-1850
Citroen double herringbone bevel wheel (65 teeth) with pinion (13 teeth)

Citroen double herringbone bevel wheel

1922
Model of single tooth pinion meshing with sixty three tooth wheel

Model of single tooth pinion meshing with sixty three tooth wheel

1914-1922
Specimen of Seymour resilient steel gear, showing building up of Seymour's laminated pinion:- finished pinion without rivets end plates and bush loose.

Specimen of Seymour Resilient Steel Gear

1921
Specimen of Seymour resilient steel gear, showing building up of Seymour's laminated pinion:- Laminae after welding, turning and boring, cone and ring removed.

Specimen of Seymour Resilient Steel Gear

1921
Specimen of Seymour resilient steel gear, showing building up of Seymour's laminated pinion:- Laminae forced into ring by central cone prior to welding

Specimen of Seymour resilient steel gear

1921