Beck adjustable kerosene microscope lamp
Datecirca 1876
Inventory Number1301
ClassificationMicroscope Light Source
Subject
Maker
R. & J. Beck
1865 - 1920
Maker
Edward Miller & Company
founded 1866
Cultural Region
Place of Origin
Dimensions29.5 × 19.5 × 15.7 cm (11 5/8 × 7 11/16 × 6 3/16 in.)
Material
Bibliography
DescriptionThis is a Beck microscope oil lamp. It has a ring-shaped base of cast brass with a fixed vertical brass rectangular post. The post is topped by a knob. A spring clamp moves up and down the post, caring an arm that holds the glass oil tank, its tin lantern shade, and a bull's eye condensing lens. The tank is clear blown glass and has a lipped filling hole. The hardware for the wick is brass. The braided rope wick is present. The lantern shade is blackened brass like the arm, and has two glass windows held in spring clamps, one on each side. The narrow chimney is cyllindrical.
On either side of the arm, there are two upright metal tubes to which the condenser is fork-mounted. A retaining strut with a locking screw is attached to the end of the arm and the fork mount. It keeps the lens at the desired angle. From the front center of the fork mount, there extends a brass dovetailed leg at an angle. This leg mates with a brass dovetailed slide, which carries a swiveling fork mount. The latter holds the condensing lens in a brass cell. The glass lens is concave-convex.
On either side of the arm, there are two upright metal tubes to which the condenser is fork-mounted. A retaining strut with a locking screw is attached to the end of the arm and the fork mount. It keeps the lens at the desired angle. From the front center of the fork mount, there extends a brass dovetailed leg at an angle. This leg mates with a brass dovetailed slide, which carries a swiveling fork mount. The latter holds the condensing lens in a brass cell. The glass lens is concave-convex.
Signedon ring base: R & J. BECK LONDON
embossed on wick hardware screw head: E. MILLER & CO. PAT. JUL. 21. 63.
ProvenanceDavid P. Wheatland purchased from Mrs. E. Malies, Brighton, England, January 13, 1969. Donated to CHSI 1969.
Charles Collins
Date: circa 1875
Accessories: case
Object number: 1250
James W. Queen & Company
Date: circa 1890
Object number: 2007-1-0060
John Browning
Date: circa 1880
Accessories: case
Object number: 1193
E. Hartnack & A. Prazmowski
Date: circa 1880
Accessories: objectives in green leather box (5): 2, 4, 6, 7, and unmarked; objectives in brown box (2): 2, 3; oculars (5); 1, 2, 3, 4, 5; polarizing eyepiece and substage apparatus; substage condenser; substage cup diaphragms (4); slider with sleeve to hold substage accessories; large bull's eye condenser with stand; aperture-stop rotating wheel; blue filters (3); flat case; case keys (2).
Object number: 1145a
Andrew Pritchard
Date: 1835-1840
Accessories: objectives (4); oculars (6); lieberkühns (4); stage forceps; bull's eye condenser on stand; spring stage; extra mechanical stage; polarizer; cup diaphragms and holders; substage fork mount; live box; glass troughs (2); concave glass; fish tube holder; case; 2 keys. See also slide micrometers (2) (1088b,c)
Object number: 1088a
Lerebours et Secretan
Date: 1845-1855
Accessories: 2 convertible objectives; 3 nosepieces; 1 larger objective; 1 ocular; right-angled and straight tubes; mechanical stage; dissecting set; mechanical stage; case with drawer.
Object number: 1220
George Whitbread
Date: circa 1850
Accessories: article containing description and operating instruments (in instrument file)
Object number: 5323
Ernst Leitz (company)
Date: circa 1919
Accessories: oculars (2): 3, 8x; accessory box; Leitz objectives (5); wrenches (2); ground glass; N.A. 1.45 condensor cap; Abbe condensor; rotary stage; case
Object number: 1345
Legey
Date: circa 1838
Accessories: shades with double tabs (4); shades with single tab (4); screwdriver and square key.
Object number: 5268
W. Watson & Sons Ltd.
Date: circa 1885
Accessories: oculars (2 pairs): B and D; objectives in marked canisters (4): 1/4, 1/2, 1, 3 inches; condenser with iris diaphragm; rotating wheel diaphragm; iris diaphragm; set of 4 disk diaphragms in brass box; triple nosepiece; live box; prisms for Wenham binocular system (2); stage for simple microscope with rotating wheel diaphragm; vulcanite stage; spare knobs (2); parts box; case
Object number: 1249