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56
NEWTON & CO., Opticians to the Royal Family,
THE “LABORATORY” LATHE-BED LANTERN.
This new lantern has been designed speoially for scientific £work in laboratories and lecture theatres. It consists of a ribbed aluminium body carrying a 4 Jin. condenser, mounted on a solid accurately planed lathe-bed removable base 3 feet long on levelling screws. The focussing lens and slide carrier are carried on separate standards, and both they and the lantern will slide and clamp in any position on the “ Y and flat ” iron bed. There is a clear space of about 14 in. between the optical centre and the table on which the lathe-bed stands, thus allowing ample room for physiological recording apparatus, &c., for which this form of base gives ample facilities. The whole instrument being constructed of metal is very rigid and free from vibration, and iB not affected by the heat of the arc light. It is, of course, not very portable, though it can easily be carried from one room to another. As the fittings are all readily removable, the base can also be used as an optical bench for laboratory work, where accurate centring and motions, and easy interchange of apparatus are requisite. The flat surface being planed can be divided if desired to metric or English scale.
8360 The “ Laboratory ” Lathe-bed Lantern, as above, (Pig. 8360) ..£25 0 0
The best electric lamp for use with this lantern is No. 8162, page 32, price 5 5 0
8361 Lantern Microscope, on the “Lewis Wright” principle, fitted to
above with centring motions to substage condensers and objectives . . 15 15 0
8362 Lathe-bed Base, as above, without optical lantern or fittings, but with
feet and levelling screens . ' . 880
We are also making a triangular optical bench (the “Universal”) in connection with Cheshire’s Projection Apparatus. See page 79.