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TIDE TABLES FOR JANUARY, 1880.

Also Ports of Reference for the Constants in the next Table.

LONDON
BRIDGE.

HULL.

NORTII
SHIELDS

LEITH.

DEVON
PORT.

WESTON LIVER

WEEK

DAY.
MONTH
DAY.

GREEN. QUEENS KINGS. LONDONI
DOVER. SUPER
POOL

TOWN
OCK.

TOWN
MARE.

BREST.

DERRY.
A.M.P.M.A.M. P.M.A.M. P.M.A.M. P.M. A.M. P.M.A.M. P.M.

A. P.M. A.M. P.M.

A.M. P.M.

A.N. P.M.

A.M.

P.M.

A.M., P.M.

A.M. P.M.

H. M. H. M. u. M. H. M. u. M. H, M. u. M. H. M. H. M. II. M. H. M. H. M.1, M. H. M. H. M. H.H. 1. M. II. M.I. M. II. M. H. M. H. MH. M. H. MH. M. H. M.
4 4 4 21 8 36 8 51 5 29 5 484 24 4 43 7 38 750 1 8 1 278 57 9 141 81 20 1 57 2 15 7 8 7 20 0 59 1 16 9 58 10 10 5 49 6 7
4 40 4 58 9 19 9 32 6 6 28 5 2 5 22 8 14 8 33 1 47. 2 7 9 31 9 49 1 44 2 2 84 2 53 7 45 8 1 37 1 57 10 35 10 56 6 26 6 46
5 16 5 30 9 52 10 12 6 49 7 10 5 44, 6 0 8 52 911 2 27 2 47 10 5 10 222 21 2 41 3 12 8 31 8 23 8 42 2 18 2 89 11 20 11 46 7 6 7 28

5 56 6 19 10 3410 55 7 32 7 56 6 29 6 529 30 9 53 3 8 3 29 10 40 10 59 3 2 9 24 3 51 4 12 9 1 9 22 3 8 21
56 41 7 11 25 11 54 8 23 8 52 7 17 7 10 10 17 10 43 3 12 4 1611 20 11 45 3 47 4 12 4 33 4 59 9 45 10 10 3 48 4 10 0 46 1 20 8 37 9 4

7 32 7 59 10 20 9 23 9 588 17 8 50|11 11 11 45 4 39 5 0 0 17 4 41 5 14 525 55 10 39 11 14 4 46! 5 19 1 56 2 34 9 85 10 11
8 309 59 1 3310 3111 12 9 27 10 6 -10 22 5 30 6 10 0 49 1 27 553 6 33 6 30 7 7 11 53 - 553 6 2 3 12 3 47/10 51 11 33
2 4111 50 10 43 11 19 1 1 1 41 6 47 7 282 72 7 16 7 55 7 46 8 20 0 32 1 13 7 4 7 40 4 20 4 50

- 0 15
6 11 44 3 21 3 58 0 26 1 111 54 2 21 3

8 8 41 3 33 4 15 8 32 9 69 69 42 1 56 2 31 8 18 8 5 5 19 5 0 54 1 23 0 20 4 82 5 3 1 33 2 2 0 27 0 56 3 89 4 12 9 17 9 48 59 5 27 9 36 10 DO 15 10 45 3 8 3 399 281 9 58 6 16 6 44 2 0 2 29

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11 0 51! 1 20 5 31 5 582 29 2 55 1 21 1 51 4 43 5 11 10 17 10 46 5 59 6 29 10 32 10 5711 14'11 42 4 8 4 30 10 24 10 48 7 12 7 39 2 56 3 22
121 48 2 14 6 25 6 60 3 19 3 43 2 17 2 411 5 39 6 5/11 13 11 39 6 567 2011 22 11 40

27
132 38 3 0 7 14 7 984 6 4 29 8 S 325 6 30 6 53 - 057 43 8 0 - 0 90 31 0 585 51 6 1411 57

8 24 3 478 1 8 22 4 52 5 14 3 47 49 7 13 7 33 0 29 0 52 8 27 8 46 0 32 059 1 21 1 436 35 6 50 0 20 0 42 928 947) 5 17 5 87
4 4 2 8 42 9 5 35 5 56 4 30 4 51 7 53 8 12 1 14 1 30 9 6 9 23 1 14 1 312 3 2 23 7 16 7 31 41 3710 610 25 5 57 6 16

1 9 22 9 42 6 17 6 37) 5 11 5 31 8 30 8 47 1 57 2 18 941 951 54 2 13 2 43 3 7 55 8 14 1 46 2 10 45 11 5 6 35 6 54
175 27 5 43 10 1 10 19 6 57 7 17 5 51 6 12 9 3 9 19 2 88 2 50 10 13 10 272 32 2 50 3 20 3 87 8 31 8 49 2 20 2 40 26 11 507 13 7 32
6 2 6 23 10 33 11 0 7 37 7 59 6 33' 6 58 9 33 9 53 3 14 3 3210 42 10 57) 3 8 3 20 3 53! 4 14 9 5 9 22 3 6 3 26

16] 7 52 8 12
6 4 7 ul 23 11 498 21 8 46 7 16 7 40 10 11 10 31 3 50 4 1011 15 11 57 3 46 4 483 4 58 9 10 10 3 16 4 10 041 1 11 8 32 8 56
7 21 7 501 0 189 14 9 4 8 8 8:59 10 56 11 22 4 31 4 5

0 41 4:33 5 5 17 5 41 10 29 11 1] 4 38 5 81 46 2 21 9 21 9 57
8 18 8 490 491 2110 20 10 58 911 95311 53 - 5 21 5 57 0 35 1 11 5 37 6 18 6 16 6 5211 38 - 5 40 6 13 2 58 3 31 10 33 11 17
229 29 10 13 1 55 2 3111 36 - 10 30 11 7 0 30 1 8 6 33 7 13 1 52 2 33 7 0 7 41 7 32 8 12 0 18 0 56 51 7 24 4 9 4 42 ---- noon
23 10 52 11 31 3 7 3 44 0 14 0 50 11 43 -11 47 2 2 7 52 8 29 3 13 3 53 8 19 8 5 8 51 9 20 1 37 2 15 8 4 8 39 5 13 5 40) 0 39 1 14

0 7 4 18 4 471 21 1 48 0 16 0 433 2 3 371 9 0 9 23 4 29 4 59] 9 22 949 57 10 24 2 49 3 10 9 10 9 36 6 3 6 23 1 4 2 9

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0 37 1 2 5 12 5 32) 2 11 2 33 1 5 1 26 4 7 4 33 9 49 10 11 5 27 5 51 10 6 10 210 46 11 88 40 4 210 0 10 20 6 46 7 7 2 31 2 51

1 47 2 6 4 57 5 1 10 31 10 511 6 13 6 3 10 44 11 11 29 11 49 4 22 4 4210 37 10 54 7 27 7 40 8 10 8 28 6 29 6 48 3 26 3 43 2 2 2 12 5 37 5 5611 11 11 31 6 55 7 1411 21 11 39 -- 0 9 5 1 5 2011 1111 28 8 5

4 0 4 17 2 59 3 15 6 15 6 3111 51 - 7 32 7 5011 57 -0 28 0 46 5 38 5 501 45

4 31 4 52 3 31 3 476 53 7 11 0 10 0 28 8 7 8 0 15 0 31 1 22 6 13 6 30 0 2 0 20 9 8 9 21 4 56 5 13 8 18 8 35 5 10 28 4 4 4 227 26 7 430 47 16 8 39 8 56 0 50 1 7 1 39 1 56 6 48 7 ( 38 0 569 409 57 5 30 5 47

4 40 4 58 8 1 8 19 1 25 1 41 9 13 9 1 21 1 42 2 13 2 31 7 24 7 42 1 14 1 3310 14 10 32 6 4 6 28

TIDAL CONSTANTS For Various BRITISH, IRISH, AND EUROPEAN PORTS. By applying the Tidal Constant of the place, according to its sign ( + add, - sub.), to the time of high water on the given day at the port of reference, you have the time of high water at the place sought.

PORT OF
PLACE. CONSTANT.

REFERENCE.

H. M. Aberdeen

-1 17 Leith Aberystwyth

-3 52 Liverpool Alderney.

+2 59 Brest Antwerp..

+5 13 Dover Arbroath.

-O 42 Leith Arcachon

+0 50 Brest Arklow

-2 23 Kingstown Ayr

-O 18 Greenock Banff

-1 49 Leith Bantry harbour

-1 14 Queenstown Barnstaple bridge -0 26 Weston-s.- Mare Bayonne

-02 Brest Beachy head & Rye bay +0 8 Dover Beaumaris

-0 51 Liverpool Belfast

+2 42 Londonderry Berwick

-1 5 N. Shields Blyth

..-08 N. Shields Bordeaux

+3 3 Brest Boulogne

+0 13 Dover Bridport.

+0 22 Devonport Bristol & King Road +0 19 Weston-s.-Mare Cadiz

-2 2 Brest Caernarvon

-1 56 Liverpool Calais

+0 37 Dover Campbellton

-0 23 Greenock Cardiff

+0 2 Weston-s.-Mare Cardigan bar.

-4 22 Liverpool
Carlingford bar

-O 10 Kingstown
Chatham.

-O 47 London
Cherbourg

+4 2 Brest Coleraine

-1 37 Londonderry Coquet Road.

-O 23 N. Shields
Cordouan Tower

-O 10 Brest
Cowes (West)

-O 27 Dover
Crinan

+4 41 Greenock Cromarty

-2 21 Leith Dartmouth,

+0 33 Devonport Deal & Downs

+0 3 Dover Dieppe

+7 19 Brest Donaghadee

+0 3 Kingstown Donegal harbour +0 17 Queenstown Douglas & Ramsay -O 11 Liverpool Dublin bar

+0 2 Kingstown Dundalk ..

-0 16 Kingstown Dungeness

-O 27 Dover Dunkerque.

+0 56 Dover Exmouth

+0 38 Devonport Falmouth

- 46 Devonport Fecamp

+6 57 Brest Ferrol

-O 47 Brest Flaunborough head -1 59 Hull Fleetwood

-0 12 Liverpool Folkestone

O 5 Dover Fowey

-O 29 Devonport Flushing.

+1 12 Dover Galway bay

-0 26 Queenstown Gibraltar

-1 27 Brest Glasgow (Port).

+0 10 Greenock Gloucester.

+2 51 Weston-9.-Mare Granville

+2 26 Brest Gravesend

-O 49 London Grimsby (Great) -0 53 Hull Guernsey (St. Peter) +2 50 Brest Hartlepool .

+0 5 N. Shields Harwich

-1 52 London Havre

+ 6 4 Brest Helgoland

+0 21 Dover Holyhead

-1 12 Liverpool i Holy Island harbour -O 53 N. Shields HIonfleur

+5 42 Brest Tverness

-1 59 Leith

PORT OR
PLACE. CONSTANT.

REFERENCE.

H. M. Jersey (St. Helier) +2 38 Brest Kinsale

-0 18 Queenstown Lerwick (Shetland) -3 47 Leith Limerick.

+1 15 Queenstown Lisbon bar

-1 17 Brest Littlehampton

+0 24 Dover Llanelly bar

-O 38 Weston-s.-Mare Lowestoft

- 4 1 London Lynn & Boston Deep .. -0 29 Hull Margate

-2 18 London Maryport

+0 3 Liverpool Milford Haven entr. -O 58 Weston-8.-Mare Montrose

-O 52 Leith Morlaix

+1 6 Brest Needles point

-1 26 Dover Newcastle

+0 23 N. Shields Newhaven

+ 39 Dover Newport

+0 16 Weston-s.-Mare Nieuport

+1 6 Dover Nore

-1 38 London Orfordness

--2 43 London Oporto

-1 17 Brest Ostende

+1 13 Dover Padstow

-1 41 Weston-s.-Mare Peel, Isle of Man

-O 15 Liverpool Pembroke Dock

- 42 Weston-s.-Mare Penzance

-1 13 Devonport Peterhead

-1 43 Leith
Piel harbour, Barrow -O 18 Liverpool
Plymouth breakwater -O 6 Devonport
Poole

- 2 2 Dover Port Carlisle

+0 47 Liverpool Portland breakwater +1 18 Devonport Port Patrick

-0 58 Greenock Portsmouth

+0 29 Dover Ramsgate

- 2 19 London Rotterdam

+4 33 Dover Santander

-O 17 Brest Scarborough

+0 48 N. Shields Selsea bill

+0 33 Dover Sheerness

-1 21 London Shoreham

+0 22 Dover Sligo bay..

+0 17 Queenstown Southampton

-O 42 Dover Spurn point

-1 3 Hull St. Ives

-2 10 Weston-s.-Mare St. Malo

+2 18 Brest St. Mary (Scilly) --1 16 Devonport St. Nazaire.

-O 7 Brest Stornoway

+6 38 Greenock Stromness (Orkneys) --5 17 Leith Sunderland

- 1 N. Shields Swansea bay

-O 53 Weston-s.-Mare Tay bar

-0 11 Leith Tees bar

+0 22 N. Shields Tenby

-1 12 Weston-s.-Mare Thurso.

--5 49 Leith Torbay.

+0 17 Devonport Tralee bay

-0 58 Queenstown Ushant (Ouessant) -O 15 Brest Valentia harbour -1 19 Queenstown Waterford

+0 19 Queenstown Westport..

-O 4 Queenstown Wexford

+2 20 Queenstown Whitby

+0 22 N. Shields Whitehaven

-O 9 Liverpool Wick..

- 2 55 Leith Wicklow

-O 41 Kingstown Workington

-O 19 Liverpool Yarmouth road

-4 43 London Youghall.

+0 13 Queenstown

[graphic]

MARINE INVENTIONS. Monthly List of PatentsCommunicated by Messrs. Wm. P. Thomp

son & Co., British and International Patent and Trademark Agents and Consulting Engineers, 323, High Holborn, London, IV.C., and 6, Lord Street, Liverpool.

ENGLISH (APPLICATIONS.) 4640. Gaspare Minisini, Turin, Italy. “Improvements in the means of obtaining motive-power from the motion of ships or Waves, and in the application of such motive-power for pumping, part of which improvements may be applied for the construction of pumps generally.” (A communication.)

4708. James White, Glasgow. “Improvements in, and connected with, electric bells, specially designed for signalling from the rooms of passenger ships, and hotels, and for other like purposes."

4710. William Sayer, Derby. “A new or improved pressure and vacuum apparatus for starting, steering, stopping, and reversing torpedo and other boats."

4733. George Wilson, Westminster. "An improved method and apparatus for the purpose of propelling vessels, and also for other purposes."

4845. George F. Lyster, Liverpool. “Improvements in appliances for facilitating the discharge of grain and bulk cargo from ships."

4878. John Louis Lay, Paris, France. “ Improvements in torpedo boats, and in apparatus to facilitate the working of the same." (A communication.)

4921. James Donaldson, Birkenhead. “Improvements in the construction of, and method of propelling, high speed torpedo and other small boats.”

4958. Moska Marichenski, Poplar, Middlesex. “Improvements in apparatus for propelling boats.” 5053. Milton Stuart, Antwerp, Belgium.

“Improved mode of shipping palm oil and other oils and greases of somewhat similar consistence, and improvements in, and appertaining to, receptacles for the same." (A communication.)

AMERICAN.

221412. Robert G. Jones, Pittsburg, Va. “ The construction of barges, boats, &c."

221538. Frederick J. Dennis, Chicago. “ Marine signal-lamps."

BELGIAN.

49605. P. A. Greil. “A universal joint for a propeller-rudder."

49690. T. B. Hesthorn. “Improvements in apparatus for steering ships, vessels, boats, and torpedoes, and for checking their speed.”

FRENCH. 131051. Richard Mouluis. An oar for steering boats.”

131348. Watson. “ An apparatus or machine for steering vessels.”

131398. Barker. “Signals and signal apparatus for vessels in the open sea or at night.”

GERMAN. 8392. G. Baumgarten, Forsthaus Grüna, near Chemnitz. “A propeller for vessels and balloons."

8111. A. Heel, Bielefeld. “ An apparatus for propelling vessels by the suction and expulsion of a column of water."

8184. S. Duer, Westminster. “A hydraulic lift for river and canal boats."

INDIAN (BRITISH). 5. C. Fouracres, Deluee, on Sone, Shahabad, Bengal. "Dredging canals, docks, harbours, rivers, tanks, reservoirs, &c., for sinking wells, caissons, and foundations of all kinds; for lifting and discharging grain or other cargo in bulk from ships and boats, &c., &c., called · Fouracres’ automatic dredger.'”

VICTORIA.

2696. Henry Bell, James Bell, and Joseph James Colman, Glasgow, Scotland. "Improvements in processes and apparatus or arrangements for cooling and regulating the temperature and dryness of air in holds, saloons, and cabins of ships, in railway vehicles, hotels, theatres, halls, factories, hospitals, slaughterhouses, and other interiors.”

[graphic]

PATENTS PUBLISHED.

INDICATING LAMPS. 1570. 21st April, 1879. Price 2d. John Harris, Wellclose Square, Middlesex (not proceeded with).-The object of this invention is to indicate the movements of a vessel's rudder. A lamp is placed in a conspicuous position adapted to give a light all round; this lamp is surrounded by two concentric cylinders of glass, one green, the other red; these glasses are mounted upon rods arranged alongside, and are by them raised or lowered so as to surround the lamp, the rods being coupled together so that as one glass ascends the other descends; they are also connected by interposed mechanism with the steering wheel. When the rudder is amidships the lamp appears without any interposed screen, and the cylindrical glasses are both hidden within a casing below the lamp. The movement of the helm from the midship position causes one or other of the glasses gradually to rise to view, and by the light of the lamp gives the indication required.

MARINE STEAM ENGINES. 1649. 26th April, 1879. Price 60. George Hill, Westoe, South Shields, Durham.—This invention has for its object to facilitate the use of fresh or distilled water in place of salt water for the working of steam engines used for propelling vessels, and at the same time to do away with the necessity of having openings through the sides of the vessel for drawing in and discharging the water for the working of the engine. For this purpose condensing chambers are placed on the exterior of the vessel ; the exhaust steam from the cylinders of the engine is led by pipes to these condensing chambers and is condensed in them; the condensed water is allowed to flow from these chambers to a closed reservoir and is admitted to the boiler again by means of a closed supply vessel connected to both reservoir and boiler. A vacuum having been created therein by means of steam the water is admitted and thence it flows into the boiler.

MARINE CLOCKS. 1686. April 29, 1879. Price 4d. Henry Horatio Ham, Jun., Watchmaker, and Elbridge Gerry Pierce, Jun., Merchant, both of

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