450
[United
358 Siebe, Augustus, 5 Denmark Street, Soho —Inventor and Manufacturer.
New-constructed dial weighing machine, with measur-ing apparatus. The annexed cut shows the form of thismachine.
Siebe’s Dial Weighing and Measuring Machine.
Self-acting water supply or steam-boiler feeder, with apatent joint to connect lead pipe without soldering.
359 Smith, W., 6 Wyatt Street, Maidstone —Inventor.
Early-calling machine. The object for which this isintended is, by the aid of a clock, to awake persons atany hour required without noise.
361 Miller, James, jun., 30 Thomas Street,
Woolwich —Inventor.
A radiator, an instrument for drawing lines to a pointor centre, with a graduated arc, fitting the instrumentfor being used as a protractor.
[The manner of using this instrument is by placing thecentre of the glass over a given point, and keeping onearm fixed, whilst drawing all the lines required by theinner edge of the other.—J. G.]
362 Liddeli,, John .Tosiaii, Edinburgh —
Designer and Manufacturer.
Spirit levels of various kinds, used in draining, road-levelling, & c.
363 Thompson, John, 4 Wellington Place, WestIndia Dock Hoad, Liniehouse —Inventor.Trigonometrical machine, for drafting every descriptionof coat, jacket, waistcoat, trousers, and riding-habit.
364 Adcock, J., Teignmouth —Inventor and Designer.
Registered approximative comparative scale of the dia-meter and quadrant of the circle, designed to facilitate themeasurement of standing timber.
Drawing of a paddle-wheel, illustrative of an arrange-ment by which the paddles may be made to enter andleave the water at the most effective angle.
Drawings of an invention for determining and regis-tering the duration of the courses of the wind at stationaryplaces within any given time $ of a new water-wheel,applicable to falls of any height, and capable of workingunder water without much diminution of effect; and ofa new tug-boat, intended for canal tunnels of great length,which have not a towing-path, and where steam powercannot be applied.
365 Gardner & Co., 21 Buchanan Street, Glasgow —
Manufacturers.
Optical instruments.
366 Young & Son, 5 Bear Street, and 46 CranbournStreet —Inventors and Manufacturers.
A seat scale weighing machine of multiplying power.A table weighing machine. This is represented in 1annexed cut.
YounjCs Table Weighing Machine.
367 Blyth, Robt., 2 Cheltenham Place, WestminstaIioad, Lambeth —Inventor.
Patent indicating level, for carpenters, masons, buil4 ers ’&c. (adapted with telescope and stand).
368 Ackland, William, 19 Dorset Street,
Portman Square —Inventor.
Machine for the graduation of hydrometers, therm®meters, &c. Scale for an hydrometer, showing spec 1gravities. Another, showing per centages, accordingTralles. Hydrometer in a finished state, showing Tv adell’s scale. . r
In hydrometers showing specific gravities and P. scentages, the divisions are of unequal magnitude. By * ]jmachine, the subdivisions are placed so that each s ^be in its true mathematical position ; it is applm 3 ® ® sthe subdivisions on the scales of thermometers, barome »verniers, the lines of sines, secants, tangents, semi-tang*: .[chords, logarithmic numbers, and, indeed, to all stra'gscales requiring equal or unequal divisions.
A brass hydrometer for showing specific gravities.
[An hydrometer is an instrument originally designed ^the purpose of measuring the gravity, density, & c '’ ^water; hut the knowledge of the specific gravities ^bodies, both fluid and solid, is so essential, that therebeen many contrivances for their determination.—I-
369 Besant, — , Wiltshire — Manufacturer.Music stands.
371 Nunn, Richard Maddock, Wexford , Ireland
Inventor. 0 {
Hydrometer, for ascertaining the specific Seduce 1 !liquids from 0‘600 to 2-000. The weights are inti°into the instrument below the centre of gravity. a ta,
Pump for medical and other purposes, stomach en&c.
Door-spring, to act without noise.
372 Blunt, H., Shrewsbury —Producer. ^
Model of a lunar crater (Eratosthenes ), diametercrater about 28 miles.
376 Hay, William, 113 Union Street, Aberdeen—
Designer and Proprietor. foot
Foot gauge, by which all the measurements oare taken at once. Useful to shoemakers, & c *