Description from the 1898 B&L catalog:
In relisting this
stand, we offer an entirely remodeled instrument,
new stage and substage, and have been able at the
same time to materially reduce the price. The stand
is of brass throughout, highly finished and
lacquered. The base is of the horseshoe form, but
with the back claw projecting to form a tripod
support, insuring the greatest stability in all
positions of the body.The pillar is massive, of
graceful proportions, and the joint has locking
lever for securing the body at any angle of
inclination. The substage is our New Complete
Substage, described and figured on Pages l7 and l8.
The stage is our New Mechanical Stage, described
and figured on page 19, is revolvable on its axis
and has centering screws. The fine adjustment is by
micrometer screw acting on the triangular bearing
of the arm, the construction being our improved
(patented) device doing away with set-screws and
springs, and entirely eliminating lost motion
either through wear, relaxation of parts, or other
cause. The head of the micrometer screw is
graduated for measuring the thickness of objects.
The coarse adjustment is by diagonal rack and
pinion of very great delicacy. The bearing of the
sliding parts is not made directly upon the body
tube, but upon a separate piece of metal attached
to the body tube, whereby we obtain much greater
accuracy in fitting and greater stability than can
be had by the old method of construction, at the
same time giving the proper combination of metals
to insure the greatest amount of wear and least
friction. Especial care is given to the fitting of
the pinion box, our construction preventing the
pinion from ever becoming loose. The main tube
has graduated draw-tube work in a cloth-lined
sleeve. The Abbe condenser, 1.20 N. A. is part
of this stand. Each CCDS microscope is furnished in
a polished case, with nickeled handle and lock, and
with receptacle for accessories.
The fine adjustment knob bears the patent date Feb. 16, 1897 and the substage bears the patent date Jan. 3, 1899 The microscope is marked on one leg of the horseshoe foot by the retailer, Pacific Micro Materials Co. of San Francisco. Read the full description of the Bausch & Lomb CCDS Continental Microscope in the 1898 catalog.
