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  Engineering Mechanics and machi

  Supplementary Kit Block and Tackle

  In conjunction with the this supplementary set presents the effects of pulley blocks and their physical relationships. Various examples are used to show very clearly the savings in power/effort that can be obtained when using these simple machines. The sturdy metal design of the parts permits the quick and easy set up of student experiments. The clearness of parts set also makes it well suited for demonstration use only. The set includes all the single parts and tools required for the experiments. None of the advantages of the apparatus for statics experiments TM 110 are restricted.

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  Engineering Mechanics and machi

  Shearing Force and Bending Moment Apparatus

  This demonstration unit facilitates the experimental investigation of the progression of the bending moment and shearing forces on a bar subject to point loads. In addition, the section principle commonly used in mechanics can be demonstrated. Due to the use of a low friction joint with two degrees of freedom at 1/3 of the span and two dynamometers, the measurements can be recorded directly from the bar. The deflection of the bar as result of the travel of the dynamometers and the horizontal alignment can be compensated and regulated using two adjustment bolts. The bar is loaded with graduated sets of weights that can be attached at any point on the bar.

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  Engineering Mechanics and machi

  Universal Testing Frame 400kN

  This testing frame is primarily used for loading experiments on components from steelwork and civil engineering. It is specially designed for large components in 1:1 scale. The design with its double frame and intermediate space permits specimens longer than the size of the frame opening to be investigated. It this way the possible uses of the testing frame are almost unlimited. The frame components are manufactured from U section St52. The corners of the frame are formed by joints rigid to bending, each is fastened together with 9 high-strength bolts. The testing frame is delivered in pre-assembled modules; it is assembled on site and placed on four adjustable, vibration damping bearings. The hydraulic ram systems available as accessories are on rollers and can be positioned as required within the frame.

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  Engineering Mechanics and machi

  Transmitted Light Polariscope

  Using this transmitted light polariscope, photoelastic experiments can be performed. This process exploits the fact that the refractive index of photoelastically sensitive materials changes under mechanical stress. Transmitted polarised light experiences a rotation of its plane of polarisation, this results in lines in the material subject to the same stress being of the same colour. The distribution of the stress in the model can thus be clearly seen. The polariscope can either generate coloured stress diagrams using white light or, using monochromatic light, light-dark diagrams. The filters, which have angular scales, can be rotated in a holder mounted on rollers. On the side is a pointer using which the angular position can be read off. Light sources, polarisation filters and load frames are separate components on this unit. Thus it is possible to realise flexible experimental set-ups also with own models.