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An optical method is presented for the experimental determination of a screw axis for a small movement of a rigid body. The method is based on analysis of a holographic interferogram and is well suited to the analysis of small movements where other techniques are difficult to apply. The theoretical basis for the method is presented and four different motion situations are provided to demonstrate the validity of the method in determining screw axes.

The meaning of kinetothermal analysis and synthesis of mechanisms is defined. Using kinetothermal analysis and synthesis, an analytical technique is developed to describe and compensate for the kinetothermal errors in displacement, velocity and acceleration in cam-follower systems. The class of problems considered includes the case where either a cam, follower or framework is subjected to a different uniform temperature than the other two and the case where a cam, follower or frame expand differently in a uniform temperature change due to unequal coefficients of thermal expansion. An example application is presented.

This paper presents the relationships between the axodes and the geometric configuration of the spherical 4R mechanism. The order of the axodes of the spherical 4R mechanism is determined to be 16. The algebraic equations for the axodes of this mechanism are presented in terms of mechanism geometry. It is also shown that the order of the axodes of the simpler forms of the 4R spherical mechanism is lower than 16.

This paper presents a technique for the design of an adjustable spatial slider crank mechanism to be used as a variable displacement pump or compressor. The design method considers velocity fluctuation, force transmission effectiveness and mechanism geometric proportions. An example application is provided.

This paper presents a greatly expanded set of computer solution curves for use in designing the four-revolute spherical function generators. These solution curves also provide a means of approximating transmission angles. A description of the original method is included for determining the link dimensions of the spherical four-revolute linkage. This is accomplished by matching a plot of the desired function with curves derived from computer solutions of the displacement equation relating input and output angles of the linkage. The set of curves presented here is large enough for practical use. An example application is also provided.

This paper presents a new method for the design of a slider-crank mechanism to satisfy specified behavior of the moving centrode. The method is based on the technique of curve matching using a series of design curves. The various families of centrode curves possible from the slider-crank mechanism are discussed. An example of the use of the curve matching method is presented.