Mance: Quarry Industry of Souther)! Indiana 



69 



The following specifications for a water-tube boiler are taken 

 from the general specification sheet of a company manufacturing 

 water-tube boilers, and were submitted hy the company as a 

 specimen of the form used in their order department. The boiler 

 specified is of 250 horse-power. 



SPECJFICATIOXS FOR A WATER-TUBE BOILER 



Each boiler to have: 



Tubes, Drums. — 4 in. diam. lap-welded charcoal iron; 12 tubes vAde; 11 

 tubes high; 16 ft. long; 2 ft. 36 in. dia. longitudinal drums. Shell in. 

 thick, heads }4 in. thick. Longitudinal seam double-riveted lap joint, 

 girth seam single-riveted. Flanged steam outlet 8 in. by 15 in. One mud 

 drum 12 in. diam. 



Heating and Grate Surface. — 2,527 sq. ft., including tubes, headers, drums. 

 54 sq. ft. Grates. — Furnace 8 ft. 4 in. wide by 6 ft. 6 in. long. Standard, 

 unless otherwise specified. Opening in grate bars as required. 



Fittings. — 2 pop safety valve 4 in. diam. to be set at 160 lbs. One each 

 2}/2 in. globe and check valve for feed. One 3 in. blow-off valve. One % 

 in. globe valve for cleaning hose. One steam gauge with 12 in. dial. One 

 cast-iron water column with three try cocks. One glass water gauge fitted 

 with chain shut off, operating from floor. All necessary piping and fittings 

 to connect with drums. 



Testing. — When erected the boiler will be tested to 250 lbs. hydrostatic 

 pressure. Safe working pressure 160 lbs. per sq. inch. 



Tools. — One set Fire tools consisting of poker, slice bar, and hoe. One 

 steel T^TeDch for bolts on headers. One length of hose with pipe for blo^dng 

 soot from tubes. 



Space. — Space occupied, including brick work: Length 18 ft. 9 in.; 

 width (single) 11 ft. 2 iu.: battery 21 ft. 6 in.; height to outlet flange 17 ft. 

 3 in. 



Weight. — Approximate shipping weight of each boiler 50,000 lbs. 



Brick Work. — Estimated quantity of brick for the setting of each boiler 

 above the foundation: 14,800 red brick; 2,650 flre brick; to be pro\'ided 

 by the purchaser. 



Foundations. — Excavating and foundation to be furnished by the pur- 

 chaser and must conform to di'a^ings fm-nished by us in all essential points. 

 The depth must be governed by condition of the site. We wiU not be re- 

 sponsi1)le for any defects caused by settling of foundations. 



All previous conditions or agreements between the parties hereto, either 

 verbal or wi'itten, are hereby abrogated and cancelled, and no changes or 

 modifications shall be binding on the party of the first part unless in ^Titing 

 and signed by an executive officer of the company — this constituting the 

 entire agi^eement between the parties hereto. 



Delivery. — To be dehvered f.o.b. cars, at our plant. Shipments subject 

 to strikes, accidents, failm^e to receive material, or causes beyond our reason- 

 able control. The transferring of material from cars to place of erection to 

 be done by purchaser who ^^ill also furnish apphances and ordinary labor 

 for the erection, unless othermse agi'eed in T^Titing. 



