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Material
Date

Gearwheel made from Tufnol

1957

Tufnol gearwheel

1957

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

1922

Hardened and ground steel pinion

1926

Sample of Fabroil A type material

1922

Fabroil 'A' type material

1922

Five inch diameter

1926

3" diameter

1926
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
Citroen double herringbone bevel wheel (65 teeth) with pinion (13 teeth)

Citroen double herringbone bevel wheel

1922
Keenok gear wheel, type F.R.5.

Keenok gear wheel

1930
Two blue prints of Citroen gears

Two blue prints of Citroen gears

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

Wooden pinion with 22 wooden teeth

1750-1850
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:- Laminae forced into ring by central cone prior to welding

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:- finished pinion without rivets end plates and bush loose.

Specimen of Seymour Resilient Steel Gear

1921