^%. .a^ IMAGE EVALUATION TEST TARGET (MT-S) J 2^ '^ # k A^' 'x. ^° t^. / i/.^ A 1.0 l.i 1.25 1^ IIM 13.2 6' 2.2 2.0 U III! 1.6 V <^ A ^a c^: c^i ,1^ -'V/ ^fei. ..> ^•>^ ^ W^t % >> Photographic Sciences Corporation 23 WEST MAIN STREET WEBSTER, N.Y. 14580 (716) 872-4503 s -b iV >^ ^v %^ ^^\ '^\ »^ ^"^^ ^'' <> r^^ Ar ^° ^ C/j CIHM/ICMH Microfiche Series. CIHM/ICMH Collection de microfiches. Canadian Institute for Historical Microreproductions / Institut Canadian de microreproductioiis historiques 'W:----M' Technical and Bibliographic Notes/Notes techniques et bibliographiques The< to thi The Institute has attempted to obtain the best original copy available for filming. 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IVIaps, plates, charts, etc., may be filmed at different reduction ratios. Those too large to be entirely included in one exposure are filmed beginning in the upper left hand cornier, left to right and top to bottom, as many frames as required. The following diagrams illustrate the method: Un des symboles suivants apparaftra sur la dernidre image de cheque microfiche, selon le cas: le symbols -^> signifie "A SUIVRE", le symbole V signifie "FIN ". Les cartes, planches, tableaux, etc., peuvent dtre film6s d des taux de reduction diffdrents. Lorsque le document est trop grand pour dtre reproduit en un seul ciichd, il est fiimd d partir de Tangle supdrieur gauche, de gauche d droite, et de haut en bas, en prenant le nombre d'images ndcessaire. Les diagrammes suivants illustrent la mdthode. 1 2 3 1 2 3 4 5 6 (All rights reserve)- ADVANCE PROOF— (''«'«'';«'.•< /« reeuion). This proof is sent to you for discussion only, ami on tlic (vtance>, should be built of stones 2 ft. 8 ins. in height. As stretchers could not be less than 4 ft. in length with a bed not less in width than lA times the rise, the smallest stone that eould be used weighed over three tons. The cours- ing of the sidewalls was carried through the body of the work, tlie whole with ^^ in. joints, and dressed with the fine end of a Bouchard hammer. The backing consisted of largo and wcU-.shaped stones of such thickness, that liro courses were equal to one course of face-work. The floor is of stone, the central ft. carrying the keel-blocks being 1 raifed 6 ins. above llio dock bottom. The foundation of tbo cnjrino liouse, cbiinney nnd inacliinory were oavriod up from tlic rook, and tli(^ floors paved witb stouu. A (|uanlity of coucntc w«k used, composed off! parts of broken stone, 1 part clean, sbarp Hand, and 1 part of Portland cement. Tlie whole of the masonry was laid in a compound of one of Port- land cement to Ivo of sand, mixed and used up required, each course being {^routed up and filled full with the compound. All joints were lipped for 4 ins. from the face with a compound of 1 of cement to 1 of sand, and neatly pointed and finished off when green. Only Portland cement was used in the work, and a constant testinp; was carried on during construction. Samples were taken from every trnth barrel as delivered, and tested for fineness by the whole sample passing through a 2,500 sieve. Briijucttes of neat cement, after remaining for twelve hours in the air and seven clear days in water, gave an average tensile strength of 445 lbs. per sijuare inch. The quoins of the outer face of the inner invert and side walls are of grey griinite, all ren.aining stones in the invert being of limestone. The granite and limestone quoins facing on the caisson berth, and of the walls on either side, are worked with a projection of ^ in., and a full width of 12 ins., and set absolutely perpendicul.ir and in a true plane, the faces being finely sixed and rubbed down, for on these meet- ing faces depends the tightness with which the ciiisson fits, thus pre- venting leakage when the dock is empty. An extension of the caisson-berth forms a chamber into^^hich the caisson is drawn to admit a vessel. Along each side of the bottom are heavy cast iron rollers pliiced at intervals, on which the caisson rests and travels when being moved. The width of the inner invert is 55 ft , and of the outer invert 57 ft., this difference being necessary to permit the caisson being floated into its berth. They are built to a radius of 103 ft., and the stones form- ing them are cut with radial joints. The lowest point in the inverts is 15 ft. 6 ins. below zero, or the assumed average low water level of the lake, 22 ft. below coping level, and 4 ft. 6 ins. above the floor of the dock. Oiii^ide the outer invert is an apron of stone 20 ft. in width, and 2 ft. lower than the centre of the invert, in which are placed granite blocks on which the caisson can rest if at any time it is found expe- dient or necessary to effect repairs in the caisson berth or chamber, or to dock a vessel longer than the floor of the dock, or, in. other words, a vessel of 810 ft. in length. Under the foundation of the dock bottom ai'e arterial drains, by means of which the leakage from the lake is carried to and discharged by the auxiliary pump, when the dock is empty. Access is had to the dock floor by steps on either side at the entrance end, and on either side of the timber slide at the head. In the floor at the lake end is a rudder well, 24 ft. long, H ft. wide, and 12 ft. deep, which has proved of mueh service, as it permits an easy removal and replacing of u rudder. Sixteen (10) cast-iron mooring parts, .set in and filled with concrete, are placed around the dock, together with six heavy, double purchase capstans. On the dock floor are cast-iron keel-blocks capped with hard wood, placed at intervals of 5 ft., and 32 bilge-blocks at 10 ft. centres, which are operated from the dock coping. The dock is filled through a culvert 4 ft. in diameter, the mouth of which is outside the entrance works, and the discharge over tiie inner invert, the whole being submerged 6 ft. below zero, and controlled by a 4 ft. cast in m valv. Provision has been made whereby, in an emergency, filling can take place through the emptying culvert, which is also 4 ft. in diameter and controlled by a valve. The caisson chamber and berth is connected by a 12 in. pipe with the auxiliary pump, so that cither can be emptied in the event of the stop-logs being put in place. The enginc-hou.se, which comprises an engine-room, boiler-room and dynamo room, is of stono. The chimney — also of stone, nnd 90 ft. in height, is placed partly within and partly wiihout the buildinj;. Over repairs. ThcMlock is closed by a caisHon, built of steel, which may be described as an irregular rectangular box with parallel sides and inclined ends, measuring 57 ft. in length on the inner face, and 59 ft. on the outer; 11 ft. lOtus. in width; and 21 ft. G ins. in height. Two keels, 4 by 8 ins. dimensions, run the whole length of the bottom, on the outer edges of which are inserted at regular intervals, 4 by 4} ins. shear raised fi ins. above (lie dock bottom. Tbc fnundatinn of (bo onaino liousu, cliininey iind miicliincry were cnrricd up Croin the rock, mid LONGITUDINAL SECTION feCALK or rtKT. -T a 4 ft. cast-iron valve. Provision lias been made wbereby, in an emergency, fillinj^ can take place tliroiigli the cmptyiui; culvert, which is also 4 ft. in diuuieter and coutrollcd by a valve. The caisson chamber and berth i,s connected by a 12 in. pipe with the auxiliary pump, so that nitber can be emptied in the event of the stop-lo!;s beinii; put in place. The engine-house, which comprises an engine-room, boiler-room and •lynnmo room, is of stono. The cliimnoy — also of stonn, and 00 ft. ia lieight, is placed partly withiu and piirily wiiliout the buildinj;. Ovor TRANSACTIONS CAN. SOC. C. C. VOL.,X. »n.ATt. 4- . — :3i;: ^ = taOL. _.?*». 1 "' 1 ! [ _ ^ ^ ^ _ E If 1 X J 1 H ALf SECT ION CRoes stcTioN. repair.^. The (lock is clewed by a caisson, built of steel, which may be described as an iiregiilar roetangiilar bo.K with parallel sides and inclined cads, measuring 57 ft. in length on the inner faoc, and 59 ft. on the outer; 11 ft, 10 ins. in width; and 21 ft. G ins. in height. Two keels 4 by 8 ins. dimensions, run the whole length of the bottom, on the outer edges of which are inserted at regular intervals, 4 by 4.^ ins. shear raimlfliiiN. nbovc (lie dock Imttom. Tlio fmindafion of Mm online liimsci. cliiumuv iiud iimchiut ry wfiv curried ud (Vom tlic rvck, uiid I UNION a 4 ft. cast-inni valve. Provision lias been uindo whereby, in an emergCDcy, fillinjj; c:in take place tluoufrh the emptying culvert, which is also 4 ft. in diameter and controlled by a valve. The caissou chamber and berth is connected by a 12 in. pipe with the auxiliary pump, no that cither can lie emptied in the event of the stop-lo^.s bein;,' put in place. The engine-house, which comprises an engine-room, boiler-room and (lyniinio room, is of stono. The clnnincy— also of stone, un.l 90 ft. \a lifiKht, in placed piirtly williiu iind psinly williout the huildin-. Over the engitio and the dyn.iuio ruomn the r. .of trusses arc of wood, :ind over the l.oilern of iron, tin- purly wall.i boinj,' curried up to the roof as u safc^'Uttrd in thec:iHu of fire. Tlio iniijor portion of the floor of the en-ine room is tIA ft. below «oro, or 13 ft. below copiun- level, and on it U placed thJ pumping plant, wliich houmhU of two vertical 18 ins. centrifugal pumps, one riKht-lmnded the other left-handed, havin- discs 4 ft. H ins. in di.uncter, enoh operated by a vertical, hi-h pressure en-inc, huvin- cylinders 18 ins. in .liamoter, and a stroke of 18 ins. The pumps are connected directly with the engines and are in line ; and by means of clutches they can bo ^'cared toj^ether so thi.t oH«en-ine can drive both pumps, or nu on-^inc can drive the opposite pump. The suction pipes, which are 22 ins. in diameter, are furnished with foot-valves, and are led thiouu;h the engine room floor to the pumps, all jomtB beiuK absolutely watertight. The pumps di.schar^e thn.u^h 22 in. pipes, the centres of which are !» ft. below eopiu- level, or 2 ft. (J ins. below zero, and when the lake is at that level, the pumps operate ;.{,'ainst u head of that heij,'ht. To prevent inflow when the pumps are not in use and the dock is empty, eiich discharge pipe is provided with a 22 in. valve. The au.xiliary pump and eDgines arc plaoctl on the upper or higher portion of the engine room floor. This pun.p, which is an 8 in. hori- zontal c, ntrifugal, has a maximum lift of :JI ft. ti ins., and discharges 3 ft. above zero. It is operated by a pair of vertical, high pressure engmes, bavinu' 12 in. cylinders and 12 in. stroke, which arc also used to move, by means of intermediate gearing, the cai.s.son into and out of place. On the lower floor of the engine room is a " Kuowles " fire pump, the steam eyiinder being 15 in.s. and the water cylinder 10 ins. in diameter, both having a stroke of 21 ins. This pump can be used in the event of the auxiliary pump being disabled. A delivery pipe is carried to the outride of the building, having a proper cap for attaching four lines of 2^ in. fire hose. ^ A " Knowles '' patent duplex boiler feed pump, with steam cylinder <> ins., and water cylinder 4 ins , and stroke 7 ins., is placed in the boiler room. The boilers— four in number— are of the cylindrical, multi-tubular lypo, set in brick work, with all the fittings and appliances for their successful working. They are 14 ft. long and 5J ft. in diameter, each containing 84, No. 9, W. tl., lap welded, charcoal iron tubes,' .'5 J ins. external diameter, and furnished with domes S ft. high and 2i ft. diiimeter. The shells and ends are of i? steel, the lougit"udinal seams being lapped and double rivottcd, the circumferential seams lapped and single rivette I. Before acceptance they were subjected to a cold water test of 180 lbs. per square inch, the working pressure being set at 100 lbs. Two oflhe.se boilers supply steam enough for the main engines. The smoke flue runs along the front end of the boilers, where eonneetion is made with the uptakes, and is carried to and through the party wall of the dynamo room, when it is led downwards and under the floor to the chimney. ^^ A boiler of the , are Jur liic jmrpose of preNervinj;; the piiiMllclisni of the eaiwson wiiilc bein^' moved. 'I'iio lower li it. is of eellnlar (loiiMtrmtion for .-lienj^lh luul HtitVness, and oompowd of ^ in. plalcK and 3 X 15 X S ins. anglew. All anjilis for the siiles and ends arc 3 X :^ X i in,, and for the revcfHe bars 3 X H X S '"• '''■>*' ""'"'• beams up to the lower doek are 4X4 X i in. angles, and above :^4 X :ti X i in. Under Ihr lower iind upper floors, Z beaiUH 5 X 3,',j X 2^ X i in., were uMtd. Tlio uprij^ht postM are ti X 3 X it in. ehanncls, and the diiij^onal bracea, 4 X 3 X i in. anj^'loH. The plates in the bottom and first row on the Hides and ends are ^ in. in thick- nct^s, and those above diminish to J in. in the top plate, which is finished with a t* X i in. bulb. The Moor j.lates are i in. in thickness. All outsiiie plates W( re planed on their edges, and lapped 'ij ins. in the woik, and were sin-le rivetU;d. VVhcro re(|uired, filling' pieces were placed between the plates and the frames, to make up for the difference in the thickness of the plates, ami voids between the plates and the frames. , . . , , For the movement of the caisson ii haulinfrbir liS ft. 4 mn. in lon>^lli is connected by means of a 4 in. pin, the outer end projeotiuji; 7 ft. 9 ins., and carrying a yoke 17 ft. 8 ins. iit length attached by a 4 in. pin, the outer end.s being siipporteil by two hinged bracUets coupled with parallel motion bar.s. For ballasting purposes, hof " in. sluice valves are placed in the outer face above the line of the upper floor, to which are attached tj in. cast iron pipes leading to within 4^ ft. of the bottom. At the bottom ot the inside face a 4 in. valve is placed to drain the cai.ssou when the dock is empty ; and the caisson can also be emptied by a No. 5 pulhometer. The cellular bottom is tilled with eoncrete, and the further permanent ballast is supplied by the requisite amount of stone. On the outer faces are rivctted 6 X 6 X * in. angles, which carry tlie white oak meeting faces, which are secured in place by ^ in, bolts. The cai.'^son weighs 255,000 lbs., and when the lake is at zero its dis- placement is 358 net tons. It is moved into and out of place by wire ropes, which pass over traversing grooved wheels .secured to the masonry at the dock end of the chamber, and over spirally grooved drums keyed on a horizontal shaft at the head, which is actuated by the auxiliary engines. The dock at zero contains 2, 100,000 gallons of water when unoccu- pied by a vessel, and can then be emptied in 75 minutes, the pumps and engines making 175 revolutions per minute, each pump thus throwing 14"oOO gallons per minute. Through the filling culvert the doek can be tilled in 55 minutes. A large portion of the dock property as it stands to day is made ground, the area being enclosed by crib-wharfing of the usual type, and tilled with the materials excavated in grading the site, and from the doek pit. The cost of the dock may be placed as foUowH :— Land $20,000.00 Dock proper 365,000.00 Pumps, engines, etc 26,000.00 Engine house 26,000.00 Oais,son 18,000.tl0 Engineering and contingencies 42,000.00 ■^' Total. y!)7, 000.00 I