Micrometer type mechanical comparator
1855
Whitworth standard wire gauge
1869 to 1897
Whitworth Lathe Components
Whitworth Measuring Machine
1889
Whitworth Screw stock taps
1850-1857
3/4" screwing tap spanner
1850-1857
internal and external gauges
1835-1865
Homogeneous metal made by Whitworth and Co.
before 1889
3 spanners 7/16"
Pitch tie up attachment to hold gauge to check screw pitch dimensions before and after screw reversal
Whitworth pitch-measuring machine, 1902
1902
Three screw die sets: 1/2", 5/8" and 1", with three pieces per set, for bolt manufacture
1850-1857
Four screwing tap sets: 1/2", 5/8", 3/4", and 1"; for nut fastener manufacture
1850-1857
Machine Parts made by Joseph Whitworth and Company Limited
Box of Gauges with Spanners and a Tool Piece
Bar of steel manufactured by Whitworth and Co., marked W.Y.4, worked up into a turning tool
before 1889
Box of Standardised Screw Threads
Bench micrometer made by Joseph Whitworth and Company Limited
1889
Lockable case for Bench micrometer made by Joseph Whitworth and Co.
1883
Bench micrometer made by Joseph Whitworth and Co.
1883
J. Whitworth & Co. Lathe
circa 1876
Whitworth's workshop length measuring machine for measuring to an accuracy of 1/40
1871
Engraving of Whitworth's planning machine
1839
James Cocker's patent decimal gauge (micrometer) from his original patent of 1857 no. 1680
earliest 1857
Adjustable die wrench
1850-1857
7/8"screw die in three parts, for bolt manufacture
1850-1857
Engraving, of Joseph Whitworth's lathe
1835
Gauge (24'') in Wooden Case
Tap & Die Set
Parts for Whitworth measuring machine
Three tap wrenches: 7/16", 1/2" and 5/8" across square
1850-1857
Whitworth measuring machine in glass case with 2 'V' plates
Red metal steel manufactured in 1876 by Whitworth and Co.
before 1889
Whitworth screwing machine, 1849
1849
Whitworth lathe
Whitworth end measuring machine
1897
Early Whitworth 6" lathe
Measuring Machine
1871
Wooden box for James Cocker's patent decimal gauge (micrometer)
earliest 1857
Patent Self Acting Boring and Drilling Machine
1833-57
decimal micrometer
1857
Flat Bed Knitting Machine
1846