232 Class 5.— MACHINES POE DIRECT USE, INCLUDING CARRIAGES, [United
North Areas A. B. 10 to 34 ; C. D. E. 1 to 10, & 19 to 33 ; F. 1 to 32 ; G. 11. 1 to 13, & 19 to 26.
520 fathoms, or 3,120 feet, over pulleys; in connectionwith the shaft at the mine, called “ Wheal Anna Maria.”
The water supplying these wheels is derived from theriver Tamar, by the means of a leat two miles long, andby the water collected from the dressing doors on thevarious mines.
The mines belonging to the Company, exhibiting theabove-mentioned models, are situated about four miles westof Tavistock, in the county of Devon , on the banks of theriver Tamar, which here forms the boundary of thecounties of Devon and Cornwall . They are in lands, theproperty of his Grace the Duke of Bedford, who granteda lease of the mining set, from March 1844, for 21 years,at one-twelfth dues.
The mining set, which is about 1J miles in length, byl£ in breadth, containing 1,500 square acres, consists ofthe mines called “Wheal Maria,” “Wheal Fanny,”“Wheal Anna Maria,” “Wheal Josiali,” and “WhealEmma,” on the principal or champion lode, running eastand west; “ Wheal Prementor” on the southern part,where an adit has been driven from the surface, near theTamar, to intersect parallel lodes; and “Wheal Thomas,”also near the southern boundary, where a shaft has beensunk to the depth of 40 fathoms, and an adit driven witha view of proving the ground in that direction. The oreis found in the killas, or clay slate, of the country, andconsists of black, grey, and yellow copper ore, the latterpredominating. Operations at the mines were com-menced in August, 1844, and the great lode, from whichthe following large quantities of ore have been extracted,was cut in November following, at a depth of 17s fathomsfrom the surface. The first sale of ore took place inFebruary, 1845; since which date, monthly sales havebeen regularly made, and the returns to the end ofMarch, 1851, with the amount realized, and dividendspaid are as follow :—
Amount Realized.
Dividends
Paid.
Tons.
cwts.
qrs.
£.
S.
d.
£.
To Dec. 31,11845 /
13,674
12
0
120,382
14
5
55,296
184(1
14,398
9
0
94,626
17
10
37,888
1847
14,413
6
3
102,889
12
3
15,360
1848
16,580
17
2
100,761
14
5
30,720
1849
15,431
18
0
104,624
1
7
34,304
1850
17,290
15
3
117,3G4
12
2
40,960
To Mar. 31, \
1851 /
4,554
0
0
26,860
13
6
15,360
Tons
96,343
17
8
£667,510
6
2
£229,888
Engineer and designer of the models, Mr. NathanielSmith, Mary Tavy, near Tavistock.
420 Appold, J. George, 23 Wilson Street, Finsbury
—Inventor.
Centrifugal pump for draining marshes, contains onegallon; it discharges its contents 1,400 times in a minute,and does 73 per cent. duty. This pump is adapted for alarge quantity of water, with a low lift; has no valvesin action; and is adapted fora tide pump. Manufacturedby Easton & Amos, Grove, Southwark.
421 Bessemer, Henry, Baxter House, St. Pancras Road —
Patentee and Manufacturer.
1. A centrifugal disc pump for land and sewerdrainage, which is said to be'capable of discharging 20tons of water per minute, and will drain one acre of landper hour, if covered with one foot depth of water. Thedistinguishing features of this apparatus are, its combina-tion with the steam-engine (the disc and shaft of thepump serving also the purpose of fly-wheel and shaft tothe engine), and the absence of all intermediate gearing,or any form of piston, slider, valve, stuffing-box, or rub-bing surface of any kind whatever in the pump; itsgreat power in proportion to its weight, the small space itoccupies, and the cheap rate at which, from its simplicity,it can be manufactured in comparison with other descrip-tions of pump.
2. Model of a pump for steam-ships, being a pre-cise copy of the exhibitor’s original patent for the centri-fugal disc, dated 5th December, 1845. The model willlift one ton per minute 20 feet high. The pump-case is divided into two compartments, in one of which isa centrifugal disc, and in the other a pair of emissivesteam-arms, fixed on the axis of the pump, whereby arotary motion is given to the disc, whenever steam isadmitted to the arms. It therefore contains its ownsteam power, and may be used at any time to pump theship, even though her engines may be disabled.
The full-sized pump, with a case of 3 feet 6 inches indiameter and 20 inches wide, will discharge from theship 10 tons of water per minute.
3. A centrifugal disc pump for locomotive engines; it isself-acting, and will therefore supply water to the boilerwhile the engine is at rest. It consists of only one movingpiece; has no valve, piston, slider, or stuffing-box; thereforeneither steam nor water can leak from it. It is intended torun the vertical axis on a mineral bearing, which requiresno oil or lubricating matter: all heat from friction of theaxis is prevented, by the axis being situated in the coldwater supply-pipe; the action of the stone upon the axisgives it brilliant polish, but does not wear it away; and asthere are no other rubbing surfaces, its stoppage or de-rangement is almost impossible, particularly as there aremoving parts exterior to the case. The only materialused is an alloy of copper, tin, and nickel. This pump isapplicable to marine and stationary boilers, as it willsupply them with water when the ordinary pump may beout of repair, or when the engine is stopping. The oneexhibited will supply 900 gallons per hour, equal to aboiler of 130 horse-power.
4. A small model worked by hand to illustrate theprinciple of the centrifugal disc.
422 Stocker, Samuel & George, 4 Arthur Street,
New Oxford Street —Manufacturers.
Patent pillar beer machines of various designs, andpump. Recess counters, having separate compartmentsfor spirits and beer, designed by Samuel Stocker, jun.Patent seven-motion and other beer machines. Newdesign for a spirit tap. Patent lift pumps for spiritwarehouses, &c. Newly invented patent jar or bottle,intending to dispense with corking and uncorking; maybe opened or closed instantaneously; is air-tight, andcapable of being locked and secured without waxing,capsule, wire, or spring. Patent new pewter pot whichcannot be melted. Decanter and water bottle, with self-acting stoppers. Tapping cocks which cannot be injuredby being driven into the cask; and anti-corrosive tap,made of oak and pewter. Apparatus for icing or warm-ing ale and other liquids.
423 Slack, James, 46 Commercial Road, Lambeth—Inventor.
Polished slate cistern, with an improved patent rapidpurifier, 5 ft. long, 4 ft. deep, and 3 ft. wide; calculatedto produce 3,000 gallons per day of pure soft water.
Portable stone-ware rapid purifier, to be fixed uponthe floor.
424 Warner, John, & Sons, 8 Crescent, Jewin Street —Manufacturers.
1. Overshot water-wheel, with three pumps, in iron,frame, for raising water to gentlemen’s houses from ariver, pond, or spring. This wheel is represented in thefollowing cut (page 233).
2. Horsewlieel and improved pumps for raising waterfrom deep wells.
3. Double barrel pumps and air vessel, in iron frame,for raising water from shallow wells.
4. Double barrel pumps, in iron frame, for raisingwater out of shallow wells.
5. Treble barrel brewers’ pumps, in iron frame, to beworked by steam, horse, or water-power.
6. Patent vibrating standard pump on plank, for thesupply of water to closets and all house purposes.