Show the universal balance CHICAGO MINING WORLD k lip jt ar I 1 I 1 N I 1 M 1 11 04 the universal balance the latest improved balance to make its appearance on the market is the universal made in salt lake city utah by wilfred heusser this balance is designed for rapid work where extreme accuracy is essential the beam is a perfect truss allowing the minimum of weight and inertia with the required rigidity and insuring perfect adjustment of the edges the distance between the outer knife edges is five inches the pointer is upright and five inears inc ies long star wheels being provided for adjustment the knife edges and bearings are of carnelian melian Ca agate and are relieved when at rest the beam bears no graduation the position of the riders is indicated by means of on scales mounted behind the beam on the rider bar A feature of this rider bar is that the are not moved between deposing and re hooking the riders although the operation is accomplished by the use of a single knob on either side of the case this device makes it impossible to crush the rider with the hook A special rider lock is provided for safe keeping of the rulers riders so that they need never be handled with tweezers or removed for shipping the raising and lowering mechanism is of perfect construction giving no swing to the beam and the mechanism is provided with permanent lubrication the balance is mounted upon a black glass plate extending to the outlines of the case all parts of brass above the plate are heavily gold plated the scales are of the whitest celluloid with sharp black lines making unnecessary the use iise of magnifying glasses the rider scales are divided into divisions for I 1 mg rider 10 divisions correspond to one 1 10 mg on a balance sensitive to 1500 1 mg the deflection of the pointer being five divisions for 1 10 mg the weighing rider has to be shifted twice as many divisions as the deflection of the pointer indicates in order to establish equilibrium there are three grades of sensibility combined in one single balance hence the name universal the balance has an initial sensibility of 1100 1 mg by means of specially adjusted weights which are placed upon the beam the center of gravity is raised to a certain amount corresponding to a sensibility of 1250 1 mg or 1500 1 mg the pan hangers bear upon the knife edges jewel bearings and are brought to place at every lowering of the beam the beam hangers and pans are the only parts removed in shipping an innovation in this balance is its c caa as ing which is constructed throughout of brass finished fini ched in handsome dark color and is therefore not affected by any climate and cannot swell warp or otherwise get out of alignment it is also dust proof the balante balance is provided with levels and leveling screws and requires but a moment to be set up the mine smelter supply co salt lake city utah are the general sales agents |