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Particulars of the steamer pembroke
53 For tile Journal of the Franklin Institute.
_Particulars of the Steamer _Pembroke. Hull and machinery by Atlantic Works, Boston, Mass. Owners, Win. E. Coffin & Co. Intended service, from Boston to Pembroke. HnLt, --Length on deck, 110 ft. Do. at load line, I07 ft. Breadth offbeam (molded), 24 f t b ins. D,,pth of h.ld, 9 ft. Do. to spar de,'k. 9 It. F r a m e s - a p a r t at centres, 24 aad 30 ins.; "1, depth, 3"5 iris.; width of web, ~-in.; width of flanches, 2.5 ins l0 strakes of piate~ from keel to ~uuwale ; thickness of plates, ¼ to ~-in. Cross Floors, [, ¼ by 12 lies, single riveted. Oue indepef]deHt steam, fire, and I, ICe pump. Two bulkheads. Length of engi¢Je roL,m, ;~0'3 X 7-5 ft. Draft, aft, 9 ft. 3 ins. Tonnage. hull and engine room 215. Area of immersed section at load draft of 9 ft. 3 ins., 146 sq. feet. Ma,ts, two.--Rig, schommr. E.~ozsK --Vertical beam. Diameter of cylinder, 26 inches. Length of stroke. 3 feet. Maximum pressure of steam. 30 Ibs. Cut-off, variable. Maximum revolutions at above pressure, 60. Weight of engines, 31,078 lbs. BoIL~a.--One--Tubular return. Length of boiler, 14 ft. Breadth do.. 6 ft. 6 ins. Weight do., without water, 19,593 lbs. Number of furnaces, two. Length of grate bars, 5 ft. 6 ins. Number of tubes, above, 72; flues, below, 2. Internal diameter of tubes, above, 4 ins.; flues, below, 1 ft. 8 ins. Length of tubes, above, 9 ft. 2 ins.; flues, below, 5 ft. 8 ins. Heating surface, 1329 sq. ft. Diameter of smoke pipe, 2 ft. 8 ins. Heigbt do., 32 /bet. PRoPELLEas.--Diameter of screw, 8 feet. 20 ft. Number of blades, three.
Length do., 2 ft. 6 ins.
Date of trial, October, 1860.
Pitch do., 17 to
C. II. IL
For the Journal of the Franklin Institute.
-particulars of the Steamer (~eneral Flores.
Hull built by Kirkman & Co. Machinery by Pussy, Jones & Co., Wilmington, Del. Intended service, Coast of Callao. HuL~.--Length on deck, from fare part of stem to after part of stern post, above the spar deck, 109 feet. Do. at load line, 102 feet. Breadth of beam at midship section, 19 ft. 6 ins. Depth of hold to spar deck, 8 ft. 6 ins. Fie,Jr timber at throats--molded, 10 ins., sided, 6 ms.--apart at eentres. '22 inches. Length of engine and boiler space, 10 ft. 5 ins. Dratt of water at load line, 8 ft 6 ins. Do., below pressure and revolutions, 7 ft. 6 i n s Tonnage, custom house, 170. Area of immersed section at load line of 8 ft. 5 ins., 135 sq. ft. Displacement at load line, 295 teas. Masts and rig, foretopsail schooner. EsGxNE.--Vertical condensing. Diameter of cylinder, 24 inches. Length of stroke, 2 ft. 4 ins. Maximum pressure of steam, 25 Ibs. Cut-off, 6 to 18 ins. Maximum revolutions per minute, 75. Weight of engine, 30,300 Ills. BoILEa.--One--Horizontal tubular Length of boiler, 19 ft. 2 ins. Breadth do., 6 ft. Height do., exclusive of steam chimney, 5 ft. Number of furnace, one. Breadth do., 4ft. I1~ ins. Length of grate bars, 4 ft 6 ins. Number of tubes, 57 of 3"5 ins.; g of 3 ins. Length do., 9 it. Heating surface (,fire and flues), 696 aq. ft. Grate ourS"
_Particulars of the Steamer _Pembroke. Hull and machinery by Atlantic Works, Boston, Mass. Owners, Win. E. Coffin & Co. Intended service, from Boston to Pembroke. HnLt, --Length on deck, 110 ft. Do. at load line, I07 ft. Breadth offbeam (molded), 24 f t b ins. D,,pth of h.ld, 9 ft. Do. to spar de,'k. 9 It. F r a m e s - a p a r t at centres, 24 aad 30 ins.; "1, depth, 3"5 iris.; width of web, ~-in.; width of flanches, 2.5 ins l0 strakes of piate~ from keel to ~uuwale ; thickness of plates, ¼ to ~-in. Cross Floors, [, ¼ by 12 lies, single riveted. Oue indepef]deHt steam, fire, and I, ICe pump. Two bulkheads. Length of engi¢Je roL,m, ;~0'3 X 7-5 ft. Draft, aft, 9 ft. 3 ins. Tonnage. hull and engine room 215. Area of immersed section at load draft of 9 ft. 3 ins., 146 sq. feet. Ma,ts, two.--Rig, schommr. E.~ozsK --Vertical beam. Diameter of cylinder, 26 inches. Length of stroke. 3 feet. Maximum pressure of steam. 30 Ibs. Cut-off, variable. Maximum revolutions at above pressure, 60. Weight of engines, 31,078 lbs. BoIL~a.--One--Tubular return. Length of boiler, 14 ft. Breadth do.. 6 ft. 6 ins. Weight do., without water, 19,593 lbs. Number of furnaces, two. Length of grate bars, 5 ft. 6 ins. Number of tubes, above, 72; flues, below, 2. Internal diameter of tubes, above, 4 ins.; flues, below, 1 ft. 8 ins. Length of tubes, above, 9 ft. 2 ins.; flues, below, 5 ft. 8 ins. Heating surface, 1329 sq. ft. Diameter of smoke pipe, 2 ft. 8 ins. Heigbt do., 32 /bet. PRoPELLEas.--Diameter of screw, 8 feet. 20 ft. Number of blades, three.
Length do., 2 ft. 6 ins.
Date of trial, October, 1860.
Pitch do., 17 to
C. II. IL
For the Journal of the Franklin Institute.
-particulars of the Steamer (~eneral Flores.
Hull built by Kirkman & Co. Machinery by Pussy, Jones & Co., Wilmington, Del. Intended service, Coast of Callao. HuL~.--Length on deck, from fare part of stem to after part of stern post, above the spar deck, 109 feet. Do. at load line, 102 feet. Breadth of beam at midship section, 19 ft. 6 ins. Depth of hold to spar deck, 8 ft. 6 ins. Fie,Jr timber at throats--molded, 10 ins., sided, 6 ms.--apart at eentres. '22 inches. Length of engine and boiler space, 10 ft. 5 ins. Dratt of water at load line, 8 ft 6 ins. Do., below pressure and revolutions, 7 ft. 6 i n s Tonnage, custom house, 170. Area of immersed section at load line of 8 ft. 5 ins., 135 sq. ft. Displacement at load line, 295 teas. Masts and rig, foretopsail schooner. EsGxNE.--Vertical condensing. Diameter of cylinder, 24 inches. Length of stroke, 2 ft. 4 ins. Maximum pressure of steam, 25 Ibs. Cut-off, 6 to 18 ins. Maximum revolutions per minute, 75. Weight of engine, 30,300 Ills. BoILEa.--One--Horizontal tubular Length of boiler, 19 ft. 2 ins. Breadth do., 6 ft. Height do., exclusive of steam chimney, 5 ft. Number of furnace, one. Breadth do., 4ft. I1~ ins. Length of grate bars, 4 ft 6 ins. Number of tubes, 57 of 3"5 ins.; g of 3 ins. Length do., 9 it. Heating surface (,fire and flues), 696 aq. ft. Grate ourS"