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THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 



[October, 



The "Prince of Wales" Iron Steam Vessel. 

 Miller and Ravenhill, Blackwall. 



Built by Messrs. 



People are not generally fond of recording misfortunes and mis- 

 haps, though such a record would often be productive of great public 

 advantage in preventing the recurrence of such events. Messrs. 

 Miller and Ravenhill know, however, how to make the best of every- 

 thing, and they have in a lithograph given us a representation of the 

 "Prince of Wales" iron steamer, in a most perilous position. 



" The vessel is entirely of iron, and is intended for the Margate 

 station; she is 180 ft. long between the perpendiculars: in launching, the 

 cleets on the bow gave way, in consequence of the bolts breaking, and 

 let the vessel down, so that the bilge came in contact with the wharf; 

 she was ultimately forced off by screw jacks and two tug vessels, 

 cutting her away deeper into the concrete and planking of the wharf, 

 until she assumed the position represented in the drawing, and at that 

 period the distance measured from the face of the wharf to the point 

 of contact of the vessel and the surface of the water was 110 ft.; the 

 whole of the deck in the centre of the vessel was left unfastened for 

 the reception of the machinery; when completely afloat, it was found 

 that the shear of the vessel was not broken, and that she had received 

 no injury except that the bow was twisted in consequence of letting 

 go the stern rope, and thus exposing the vessel to the sweep of a 

 strong ebb tide. On examination it was found that three of the angle 

 iron ribs or frames were broken, and one of the plates cracked, occa- 

 sioning a considerable leak, which was accompanied by no other in- 

 convenience than that of filling the bow compartment as far as the 

 first bulkhead; and after hauling the vessel into dock, the necessary 

 repairs were effected in four days." 



This shows what iron steamers can do, and we feel indebted to 

 Messrs. Miller and Ravenhill for giving us this record of an occur- 

 rence which only served to test the powers of the vessel in question, 

 and to prove the care with which they had provided for its future 

 efficiency. 



' The Locomotive Engine, illustrated on stone. By James Basire. Jun. 

 London: George Hebert. 



The designer of these plates has been impressed with the necessity 

 of a better popular acquaintance with the locomotive engine, now 

 that it has become, as it were, a material institution of the country. 

 He has consequently brought forward the present work, which con- 

 sists of four lithographs drawn in chalk upon a bold scale, representing 

 the external and internal structure of the engine in every detail. 

 We only wish the letter-press had been more copious ; however, it 

 will be an acceptable work to those for whom it is intended. 



View of the Parish Church of the Holy Trinity, tvith its proposed 

 Improvements, now in progress. By John Bloke, Architect. 



This is a beautiful lithograph by Hawkins, and printed by Day and 

 Haghe, in light and shade; the improvements have been judiciously 

 introduced, and will add considerably to the beauty of the church ; 

 we could wish to see similar additions to more of our modern cheap- 

 built churches, in which they are much wanted. 



Old London Wall. — We are glad to be able to state that, in conse- 

 quence of Mr. G. Godwin's representation to the Institute of Architects, and 

 a letter which that gentleman afterwards published in this Journal, a memo- 

 rial .signed by Mr. Hudson Gurney, Lord Mahon, Sir Henry Ellis, and other 

 office bearers of the Society of Antiquarians, and by Mr. Donaldson, 

 Mr. Poynter, and Mr. Bailey on the part of the Institute, was presented to 

 the Society for promoting the building of churches in the metropolis ; and 

 that on the motion of Sir R. H. Inghs, it was resolved that the wall should 

 he preserved entire. 



Improved Drawing Scales. — Mr. J. Smith, lecturer and teacher of 

 perspective, has prepared for the use of the profession drawing scales, formed 

 in box and ivory, of very superior workmanship, and at an unusually low price, 

 when compared with those in common use. They are divided with great 

 accuracy, and although several scales are upon some of them, there is not 

 that confusion in the figures too often witnessed. Mo. 1 and 4, are arranged 

 for architects ; No. 2 and 5, for land surveyors and civil and military en- 

 gineers ; and No. 3, is expressly prepared so as to simplify the practice of 

 isometrical perspective, a system of drawing which ought to be in more ge- 

 neral use than it is at present. 



IMPROVEMENTS ON BROMIELAW HARBOUR AND RIVER CLYDE. 



The following interesting description of the works that have been exe- 

 cuted on the River Clyde, and for which we are indebted to the Glasgow 

 Herald, shows what continuous exertions directed in the right way will do in 

 effecting improvements of rivers, there are several of our most important 

 ports which might be equally improved, now being silted up, and which in a 

 few years will he almost useless as harbours. 



" We are delighted," says the Glasgow Herald, " to observe the rapid pro- 

 gress made the last two months in the works which have been for a con- 

 siderable time in operation for the improvement of the harbour at the 

 Broomielaw, and which, when completed, will most amply supply the wants 

 of the Glasgow trade for years to come. The works upon which the Clyde 

 Trustees, by means of their able engineer, have of late been bestowing their 

 principle attention are — first, the new harbour below Napier's Dock; second, 

 the new timber and small craft wharf, between the Glasgow and the Accom- 

 modation Bridges ; third, the additional timber wharf at the Glasgow Bridge 

 for river steamers; and, fourth, the cutting of a new deep channel through 

 the Port-Glasgow bank. Having seen the state of the works so recently as 

 Saturday last, (Sept. 16) we should say that all of them will be finished 

 within a week or ten days from this day, and some of them finished, too, in 

 a manner so massive and substantial, that they promise to resist the action 

 of the elements, and the wear and tear incident to the operations of com- 

 merce, for ages to come. The accommodation within the harbour will then 

 stand as follows : — 



Feet. 



" Length of quay walls on the north side of the harbour . . . . 3700 



Length of quay walls on the south side of the harbour . . . . 2300 



The new quay in the course of formation on the north side, below 



Napier's dock .. .. .. .. .. .. 550 



The new timber wharf in the course of formation on the north 



side, between the bridges . . . . . . . . . . 530 



Total accommodation at the Bromielaw 



7050 



In addition to this a ruble dyke has been formed on the river-side ground 

 recently acquired below Todd's mill ; which, by the excavations made, has 

 added a space of 100 ft. to the breadth of the river for 800 ft. downwards, 

 and from which 25,000 cubic yards of earth have been removed in the course 

 of the excavations. This, it may be observed, is only the commencement of 

 a series of operations which will eventually have the effect of widening the 

 harbour from 160 ft. (its present breadth at the Kinning-housc Burn) to as 

 near as may be 400 feet throughout. The excavations at this spot have 

 already extended to nearly low water line ; but in due course it will be fur- 

 ther operated on and deepened until there is at least 12 ft. below low water 

 line, which at high water, in ordinary tides, will at all times afford from 19 

 tn 20 feet in the harbour. In addition there is the basin at Bowling, 10 

 miles below the Broomielaw, which is employed for the laying up of large 

 ships and steamers during the winter months. The basin contains an area of 

 11 acres. The extension of the harbour between the bridges for small craft 

 is generally looked upon with much satisfaction. It has been long battled 

 for, and is now effected. 



" The weir which so long obstructed the navigation at the Glasgow Bridge 

 has now been as near as may be removed, and a new weir has been placed 

 down at the Stockwcll Bridge for the maintenance of the top level of the 

 river for the purposes of the Water Company at Dalmarnock. The removal of 

 the old weir has been very rapidly effected, considering that 15,000 cubic yards 

 of stone and earth hate been carried away, and from 500 to 600 piles drawn. 

 The depth of water already obtained between the Bridges at full tide is 11 ft., 

 and now that the weir is nearly removed, it will afford accommodation for 

 timber rafts, and all the small craft of whatever tonnage. It is not unlikely, 

 therefore, that the time is not far distant when the river steamers will be 

 provided with tumbling funnels, as upon the Thames and the small craft 

 with folding masts, so that the benefits of steam navigation and of commerce 

 may be brought almost to the heart of the city. 



" The operations during the last and present summer, in cutting a chanuel 

 through the long obstructing Port-Glasgow bank, have been of the utmost 

 importance to the navigation of the river. The cut formed by the dredging 

 machines extends to about 700 yards in length, by 400 feet in breadth, and 

 the result is, that while there is now a depth of 12 ft. of water at low tides, 

 there is no less than 22ft. 6 in. at high water in spring tides. Last year not 

 fewer than 90,000 cubic yards of stuff were exravated in making the cut 

 through the bank, and this season the excavations amount to 70,000 cubic 

 yards, giving a total of 160,000. When it is remembered that this bank was 

 one of the greatest obstructions in the river, and that there have been some- 

 times from 10 to 15 vessels lying aground on it, we cannot too heartily re 

 joice at its removal. Since last summer there has not, so far as we know, 

 been a single vessel impeded in its course in sailing over or through the nf; e 

 channel : and when we mention, that this season the Commodore, a lc, jj) 

 ship in the American trade, sailed up the Clyde to the Broomielaw, dra^g 

 17 ft. 9 in. water, it will give one instance, out of many, of the len;,t e( i . 

 which the capabilities of our river now extend. In addition to the b 

 which will be derived from the cut in the Port-Glasgow bank itself, ,( i jy 

 vastly facilitate the navigation of the river in other respects, permitti: onrv . 



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