Extracted from The Journal of the Royal Microscopical Society, Vol. 31, 1911
Beck's London Microscope: Handle Model - This instrument (fig. 48) was described at the April Meeting. The illustration shows the special feature of the new model; it is so designed that the limb forms a strong handle, by which the instrument can be conveniently grasped without danger to the adjustments. In other respects the instrument possesses all the well-known characters of the original model.
The following was extracted from Nature vol. 90, 1913:
Improvements in Microscopes
Some time ago (NATURE, December 14, 1911) we referred to several improvements which Messrs. Beck had introduced into their microscopes, and we noted especially the handle model as one in which all risk of damage is avoided to the working parts and adjustments when the instrument is moved. Messrs. Beck now inform us that they have revised the make of their well-known London microscope on the handle model. In addition to this, the base and pillar are so designed that although the Continental model has been retained, the position of the centre of the inclining joint has been so placed as to give greater stability when the instrument is in a horizontal position, whilst not interfering with its vertical rigidity, and the size of the base has been increased to that of their large models to insure perfect steadiness under all conditions. The stage is square and specially large, measuring 4 in. in each direction. The coarse adjustment is by a spiral rack and pinion, so accurately fitted that even comparatively high powers can be focussed thereby. The fine adjustment is of the lever type. The adjustment is obtained by a fine micrometer screw actuating a supplementary pointed rod which impinges upon a hardened steel block working upon the lever. The body tube is 140 mm. long, with a graduated draw tube, in a carefully packed fitting, which extends to a length of 200 mm.
