32 



THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 



[Jan. 



Experiments. 

 No. 1 



2 3H 

 2-77 

 i96 

 3- 17 

 3-22 

 3-38 

 3-48 

 3-70 

 :i-81 



of 58 tons produced a deflection of 3-2 inches. This weight was allowed to 

 remain till the following morning, and the increase of deflection was found 

 to be inconsiderable. The tube being subsequently laid on its side, in order 

 to test its lateral strength, it was found that 9 tons produced 2 inches deflec- 

 tion, and 12 tons, the last load laid on the tube in that position, produced 

 3i inches total deflection, including that due to the weight ,of the beam 

 itself. 



In the concluding experiments, Dec. 23, it was determined to load the 

 model bridge till it was broken. The following table e.\hibit3 the deflection 

 corresponding to each load : — 



Load. Deflection. 



31,6i*_'Ib 070incheS' 



.'. 57,947 I'Sl 



3 83.J10 1-91 



4 105.SC2 



5 I17,32n 



fi 125.U27 



7 135,25.'> 



8 .. Same weight after remttining 9 days 

 S KH,:,C,7 



10 144.:W2 



11 14;(,W4 



12 l.il,772 



With the last load, equal to 67S tons, the beam broke. 



In order to a right apprehension of the manner in which the fracture took 

 place, it must be understood that the thickness of the bottom plate had 

 been greatly increased near the middle point of the model by additional 

 plates, which were continued for 20 feet on each side the centre ; and it was 

 where the thin part, or single thickness of the bottom plate, commenced 

 that fracture took place. The bottom plate was torn asunder with a very 

 irregular line of fracture, not contiguous to the rivets. The vertical or side 

 plates also gave way, but in them the rivets (24 on each side, of -f^ iron) 

 were actually cut or sheared asunder, the rivet-holes being perfectly unin- 

 jured. The top or cellular plate remained perfect. 



These experiments have suggested several improvements of details in the 

 bridges to be constructed over the Jlenai and Conway : but at present the 

 modifications are not defined sufficiently to he laid before the public. The 

 utmost precautions have been taken to secure the strength and stability of 

 the proposed structures. The greatest credit is due to the skill and persever- 

 ance displayed by Messrs. Fairbairn and Hodgkinson, and other gentlemen 

 called in by Mr. Stephenson to carry on the investigation, and also to the 

 liberality with which expensive models have been provided. 



LIST OP NEW PATENTS. 



GRANTED IN ENGLAND FROM NOVEMBER 25, 1846, TO DECEMBER 21, 1846. 



Six Mont/ut allowed for Enrolment, unless otherwise expressed. 

 Henry Robert Bamsbotha m, of Bradford, York, worsted-spinner, for " Improvements 

 in combing wool.*' — .Sealed Nov. 2.'». 



James BvillouBh, of Blackburn, Lancaster, and Adam Ballough, of the same place, for 

 "certain Improvements in looms for weaving.'* — Dec, 1. 



Henry Bridges, of Croydon, Surrey, coach-builder, for "certain Improvements in rail- 

 way-wheels." — Dec. 1. 



William Thomas, of Chenpside, city, merchant, for " Improvements in 'machinery for 

 sewing or stitching various fabrics."— Dec. 1. 



William Johnson, of Grosvenor Wharf, Millbank. gentleman, for "certain Improve. 

 ments in machinery for raising or lifting and lowering weights or ponderous bo dies. — 

 Dec. 1. 



George Ellins, of Droitwlch, Worcester, salt-manufacturer, for " certain Improvem ents 

 in appiratus for manufacturing salt." — Dec. 1. 



Richard Love, of Coleman-street, City, merchant, for "certain Improvements in pav- 

 ing streets, roads, yards, and other surfaces, over which carriages and beasts of burden 

 have ID pass." — Dec. i. 



Jacques Francois Pinel, of Lyons, France, chemist, for " Improvements in grinding 

 wheat and other grain.".— Dec. 1 . 



Samuel Cunliffe Lister, of Manningham, near Bradford, manufacturer, for " Improve- 

 ments in combing wool." — Dec. 1 . 



William Jlayo. of Silver-street, City, manufacturer, for " Improvements in the manu- 

 facture of aerated liquids, and in apparatus used for such manufuctures, and when pump- 

 ing the liquids, ani also in bottling fluids." — Dec. 1. 



George Fergusson Wilson, of Belmont, Vauxhall, Surrey, gentleman, and John Jack- 

 son, of S(rathville, Wnndsworth-road, for " Improvements in the process of and opnarutus 

 for treating fatty and oily matters, and manufacturing candles and night-lights. — 

 Dec. 1. 



William Johnson, of Grosvenor Wh.-irf, Millbank, Westminster, gentleman, for " cer- 

 tain Improvements in propelling carriages on railways." — Dwc. 2. 



Joseph Bancroft Rcade, of Stone Vicarage, Aylesbury, Buckingham, clerk, for " certain 

 Improvements in inks, and in the process by which the same are manfactured.and the sf- 

 plication of some of these processes to tlie production ot certain salts.*' — Dec. ."i. 



Thomas Craddock, of Birmingham, engineer, for " Improvements in steam engines and 

 boilers, and in machinery coniiect«i therewith." — Dec. 3. 



Williim H. Fox Talbot, of Lacock Abbey, Wilts, Esq., for " Improvements in obtain- 

 ing and applying motive power." — Dec. 3. 



Edmund Worewood, of Tbombridge, Derby, merchant, and George Rogers, of Stearii- 

 Atie, Derby, merchant, for '■ Improvements in the manufacture of iron into sheets, plates. 



and other forms in coating iron, and in preparing iron for coating and other purposes." — 

 Dec. 7. 



Eugene Bazile, of Rouen, France, manufacturer, for " Improvements in obtaining heat 

 during the manufacture of coke, and applying such heat to various purposes." (A com- 

 munication.) — Dec. 7. 



Jolin Dacie, of Foxley, Kennington, Surrey, genMeman, for "an improved apparatus to 

 be attached to boots and shoes, for the purpose of protecting the wearer from splashes of 

 myd in walking." — Dec. 7. 



Samuel Clift, of West Bromwich, Stafford, gentleman, for " ceruin Improvements in 

 the distillation of tar and pitch." — Dec. 8. 



Alexander Bain, of Hanover-street, Edinburgh, electrical engineer, for " certain Iin- 

 provements in transmitting and recelring electrical telegraph communications, and in 

 apparatus connected therewith." — Dec. 12. 



Moses Poole, of the Patent Bill Office, London, gentleman, for "Improvements in the 

 construction and working of electric telegraphs, and in apparatus connected therewith, 

 partly applicable to other purposes." (A coaimunication.)— Dec. 14. 



James Yates, of Masborough, in the parish of Rotherham, York, engineer, for " Im- 

 provements in the construction of blast furnaces." — Dec. 14. 



John Keeley, junior, of Nottingham, dyer, for " Improvements in dressing or finishing 

 iace, and other fabrics." — Dec. 14. 



WilUam Longmaid, of St. Helen's, Lancaster, gentleman, for " Improvements in the 

 manufacture of alkali and chlorine." — Dec. 14. 



Elijah Galloway, of Buckingham-street, Strand, Middlesex, civil engineer, for " Im- 

 provements in rotatory engines, and iu locomotive carriages and railways.**— Dec. 14. 



John Shaw, of Blackburn, Lancaster, for " certain Improvements in machinery- or ap- 

 paratus for carding, drawing, slubbing, and roving cotton wool and other fibrous sut>- 

 stances." — Dec. 14. 

 James Carter, of Oldham, Lancaster, painter, for " an Improved lubricator."— Dec. 14. 

 Charles Ford, of Shelton. Stafl'ord, engineer, for " Improvements in the manufacture of 

 pottery or earthenware, and in the tools, instruments, or apparatus employed therein, 

 part or parts of whicii improvements are applicable to other similar purposes."— Dec. 14. 

 Henry Bleasdale, of Chipping, Lancaster, roller-maker, and William Ryder, of Bolton, 

 in the same county, roller-maker, for " certain Improvements in machinery or apparatus 

 to be employed in the manufacture of rollers used in machinery for preparing and spin- 

 ning cotton and other fibrous substances."— Dec. 14. 



John Todd, of Glasgow, engineer, and William Johnson, of Birmingham, engineer, for 

 " Improvements in arranging the rails on certain parts of railways."— Dec. 14. 



Johi. Chubb, of St. Paul's Churchyard, City, for " Improvements in locks and latches 

 to be used for fastenings."- Dec. 14. 



Benjamin Vickers, of Sheffield, Yorkshire, merchant, for " an invention called the me- 

 chanical chirographer, or machine for delineating letters, figures, and other characters." 

 (A communication.) — Dec. 14. 



Jeremiah Campion, of Somers-place, Hyde-park, MiddleEes, gentleman, for " Improve- 

 ments in soldiers* belts,and improvements to facilitate the carrying ofknapaacks."- Dec. 

 15. 



Thomas Friend Dickinson, of Newcastle-upon-Tyne, sharebroker, and John Palkous, 

 of the same place, gas engmeer, for ■' certain Improvements in gas metres."— Dec. 1-5. 



Mark Bingley, of Cannon- street, London, stationer, for "Improvements in bookbind- 

 ing, and in weaving materials usad in bookbinding, applicable also to other weavings, 

 and in preparing for, and making alphabets for account and other books, and in inking 

 type therefor aiid other purposes, and in preparing sprinkled, granulated, or mottled 

 paper for bookbinders and otheis, applicable also to the edges of books, and in graining 

 or chequering Russia or other leathers."— Dec. 15. 



Richard Turner, of Hammersmith Works, Dublin, and Bath-place, New-road, Middle- 

 sex, for " Iroprovemeuts in the coustruction of roofs of railway stations, and roofs and 

 floors of other buildings."— Dec. 15. 



Walter Smart, junior, of Leather lane, Middlesex, lithographic prmter, for "a neiv or 

 improved lithographic printing press."— Dec. 21.. 



John Watson, of Glasgow, manager to Messrs. Gilmour and Kerr, power-loom cloth 

 manufacturer, for " Improvements in weaving by Jacquard looms by power.'*— Dec. 21. 



Peter Borne, of the Crescent, Minories. City, engineer, for " Improvements in the con- 

 struction of piers and harbours.*'— Dec. 21. 



John Jennings, of Ollerton, Chester, farmer, for " certain Improvements in machinery 

 or apparatus for threshing."— Dec. 21. 



Richard Boyce Osborne, of Limerick. Ireland, civil engineer, for "certain Improve- 

 ments in bridges, roofing, and flooring," (A communication.)— Dec. 21. 



Louis Sylvian Gonin, of Paris, manufacturer, for " Improvements in printing stuffs, 

 paper, ar.d other matters." — Dec. 21. 



Moses Poole, London, gentleman, for " means and apparatus for administering certain 

 matter to tlie lungs for medical or surgical purposes." ;A communication.)— Dec. 11. 



Joseph WTiitworth, of Manchester, engineer, for " Improvemenu in machinery for 

 knitting."— Dec. 21. 



Augustus Applegarth, of Dartford, Kent, caUco printer, for " Improvements in ma- 

 chines for printing paper and other fabrics."— Dec. 21. 



Moses Poole, London, gentleman, for " Improvements in steam-engines, andmachincry 

 tor propelling machinery and fluids." (A communication.)— Dec. 21. 



Antoiue Perpigna, of Paris, advocale, for " certain Improvements in machinery for 

 plaiting and braiding." (A communication.)- Dec. 21. 



John Perry, of Leicester, wool-comb manufacturer, and James Noble, of the same place, 

 wool. comber, for "certain Improvements in combing wool, and in preparing wool for 

 combing and carding."— Dec. 21. 



Pierre Frederic Gougy, of Leicester-square, Middlesex, gentleman, for " Improvements 

 in apparatus and machine.y for raising, lifting, aud otherwise moving heav7 bodies. — 

 Dec. 21. 



TO CORRESPONDENTS. 



Sir Howard Douglas requests us to state that he will in a short time 

 reply to the observations on the Strength and Stability of Huogerford 

 Bridge, in our last (December) number. ■ 



H S —The second letter was, we suppose, mtended lo prevent the pub- 

 lication' of the first, whioh would otherwise have been inserted. Perhaps 

 our correspondent will write again after reading the letters on the subject 



'" r" ceit*ed : " Ancient and Modern Architecture ;" " Life of Gandoa ;" 

 X V Z, North Wales.— Next month. 



