Materials
-
304
Piston Crank Apparatus
-
114
Polygon of Forces Apparatus
-
115
Portal Frame
-
322-4
Portal Frame Apparatus
-
196
Rack and Pinion Apparatus.
-
359
Ratchet and Pawl Mechanism
-
49
Redundant Truss
-
246
Rhapson’s Slide
-
118
Roof Truss
-
121
Rotary Cylinder Mechanism
-
123
Sag and Tension Apparatus
-
232
Scott-Russel Mechanism