DEPARTMENT OF PROFESSIONAL BODY BUILDING |
| DIRECTOR Hee Wojner |
ABOUT
lattner's Balance, for the accurate determination of very small weights, used
as part of his portable collection of apparatus for the quantitative assay of gold, silver, ores of copper, lead, &c, by the blowpipe. Length of beam 6J inches; power to carry I gramme, and show Tv milligramme : that is to say, to carry 15 grains, and turn with ■fo-th of a grain. With a set of gramme weights. The whole arranged in cavities, cut in two boards that are hinged together, and form, when shut up, a base for the support of the balance. £4.
r21.
436. Balance with a brass beam 12 inches long, in a mahogany box, with a support
adapted to the top of the box. The pans rest on the box, and are moved by a lever. Will carry 1,000 grains in each pan, and turn with A- grain : with 300 grains, it shows Tlo grain. The beam is divided into ten parts from the fulcrum to the end, for a rider. With a set of weights from 500 grains to Tv grain. £5 15s. 6d. r 33.
COMMERCIAL BALANCES.
437. Apothecaries' Scales and Weights, to weigh quantities up to half an ounce, in
plain oak box, with set of weights, 2s. 6d.
438. Ditto, superior, with glass pans, in oak box, 6s.
439. Ditto, superior, with box-end beam, and glass pans, in- mahogany box, 8s. 6d.
440. Ditto with ivory pans, 12s.
441. Balance to carry 1 lb. and turn with 1 grain, 10-inch beam, 5-inch brass pans
in oak box, 18s.
C—WEIGHTS.
445. Grain Weights. Set of accurate weights, consisting of 600, 300,200, 100, 60,
30, 20, 10 grains in brass, and 6-, 3-, 2-, 1-, '6, -3, 2, M, -06, -03, -02, -01 grain, in platinum ; in a mahogany box, with tongs. 25s.
446. Grain Weights, accurate, from 1,000 grains to '01 grain, in a mahogany box,
with tongs, 31s. 6d.
447. Grain Weights, less accurate, from 600 grains to Tv grain, in a box, 16s.
448. Another set, less accurate, 600, 300, 200, 100, 60, 30, 20 grains, in brass, with
knobs ; and 10, 6, 3, 2, 1, £ grains, in brass foil, without box. 8s.
449. Ditto, in a wooden case, 10s. 6d.
450. Smaller set, 100, 50, 30, 20, 10, 6, 5, 4, 3, 2, 1, and £ grains, in brass, without
a case. 4s.
451. Grain Weights and Decimal Fractions, in platinum; namely, 6', 3', 2-, I•;
•6, 3, -2, 1 ; -06, -03, -02, -01. The set, 10s. 6d.
452. Set of Grains, 6-, 3-, 2-, 1; in a box, 7s.
453. Set of Tenths, -6, '3, -2, -l, in a box, 3s.
454. Set of Hundredths, -06, -03, -02, -01, in a box, 3s.
455. Standard Gramme Weights, according to Mohr, justified according to the
Platinum Kilogramme of Dr. Schumacher in Altona. The weights made of German silver, in the following series—50, 20.10, 10. 5, 2, 1, 1, 1, -05, '02, -01, ■01, -005, -002, -001, 001; with three gilt riders, and ivory tongs, in mahogany box. 25s.
456. Gramme Weights, accurate, 50 grammes to 10 grammes, in brass, and'5 to '001
grammes, in platinum, in a mahogany box, with tongs. 31s. 6d.
457. Gramme Weights, containing the series, 100. 60, 20. 10, 10, 5, 2, 1, 1. 1, in
brass, and -5, -2, -1, 'l, '05, 02, 01, -005, 002, -002, -001, 001, in platinum, with four riders, and tongs, in a maho^anv box, 36s.
458. Gramme Weights, containing the series 500, liOO, 100, 100, 50. 20, 10, 10, 5,2,
1. 1, 1, in albata, and 5. 2, 1, 1, 05, -02. '01 -01, 005, "002, -001, in platinum, with four riders, ivory tongs, aud two weight-lifters, in a mahogany box, 50s.
Pound Pile of Avoirdupois Weights in brass, round and flat, adjusted, consisting
of 1 lb., i lb., J lb., 2, 1, and i oz., 5s. Pound Pile of Avoirdupois Weight3, cast-iron, round and flat; set of 7 weights
adjusted, 1 lb., i lb. i lb., 2 oz., 1 oz., \ oz., and \ oz., the two last of brass.
Per set Is. 6d.
Square Iron Weights, with handles, Fig. 461, 14 lb., 2s.; 28 lb., 4s.; 65 lb., 8s.
Set of Apothecaries' Grain Weights, 2 drachms to £ grain; viz., 2, 1, i dr. ; 2,
I, £ scruples ; 6, 5, 4, 3, 2, 1, | grains. Is.
Riders to slide on the balance beam, Fig. 463.
A. English, ^ grain. 4d. | B. French, 1 centigramme. 4d.