Bausch & Lomb Optical Co. Rochester NY, 40018

Retailed by Pacific Micro Materials Co., San Francisco

The CCDS Continental Model Microscope c. 1903

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sugstage and condenser mechanical stage
case text
The Bausch & Lomb CCDS model microscope

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.


fine adjustment used on the B&L continental models

Patented fine adjustment: Feb. 16, 1897

substage used on the B&L continental models

Patented substage: Jan. 3, 1899

 

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.

Pacific Micro Materials Co., San Francisco Bausch & Lomb Optical Co. Rochester NY, ,40018. The CCDS Continental Model Microscope, c. 1903. Accessories

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