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KI 140 Whitworth Quick Return Apparatus
Education / GUNT Hamburg / Engineering Mechanics and Machine Elements / Dynamics /

Whitworth's quick return is used to generate uneven reciprocating motion with slow feed and quick return. This table model clearly demonstrates the transmission behaviour of such a layout. The input angle is set by turning the crank. The output stroke is read on a ruler on the slider. The transmission components are manufactured in aluminium. All axles are equipped with ball bearings. Due to its low weight, the unit is easy to carry using the two handles.


Learning Objectives / Experiments

- Output stroke of Whitworth's quick return as a function of the input  angle of the drive crank


[1] Benchtop experiment on the uneven reciprocating motion of Whitworth's quick return
[2] Crank radius 46mm, slider radius 55mm, connecting rod length 145mm
[3] Slider crank and connecting rod mounted on ball bearings
[4] lxwxh 360x280x60mm


Technical Data

Drive crank radius: 46mm
Slider radius: 55mm
Axle offset drive slider: 30mm
Connecting rod length: 145mm


Dimensions and Weight
l x w x h : 360 x 280 x 60 mm
Weight : approx. 4 kg
Scope of Delivery
1 kinematic model, complete 
1 instruction manual
Order Details

041.14000  KI 140  Whitworth Quick Return Apparatus