File:The universal assistant, and complete mechanic - containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every (14579838119).jpg

English:
1874 Amoskeag Self Propelled Double Plunger Steam Fire Engine, Class II (medium size) manufactured by the Amoskeag Steam Fire Engine Co., Manchester, N.H

Identifier: universalassista00moor (find matches)
Title: The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory
Year: 1879 (1870s)
Authors: Moore, R. (Richard), fl. 1871-1907
Subjects: Industrial arts Technology
Publisher: New York : J.S. Ogilvie, Publisher, 57 Rose Street
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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Text Appearing Before Image:
e blow-offcock near the bottom of the boiler, with a steam pressure of abouttwenty poimds. and the boiler refilled with fresh water. This pro«cess may be repeated untQ the b<3iler becomes clean. 8. The pumpnpon the Amoskeag Engine is a vertical double-acting pump, with thecylinder surrounded by a circular chamber, divided vertically outsidethe cylinder, so as to answer both for the suction and discharge cham-bers of the pump. It has a separate valve-piate at the top and bottomof the pump, carrying both the suction and discharge valves ; the suc-tion vadve upon ()ueside of the plate, and the discharge valve nponthe other. Each of these valve plates can be reached by taking offthe top and bottom of the pump, which is so constmcted as to bareadily removed. The discharge and suction parts of the water-chamber, surrounding the cylinder, are connected by a valve in thevertical partition, wluch is called a relief valve. 9. With a single MAXXISISTS AST) £27er!rE£S.< DSFABTU£2rr. 886
Text Appearing After Image:
MiiW S86 MACHINISTS AND ENGINEERS* DEPARTMENT, long line or hose, it may be necessary to open your relief-valve a littla^but as r.11 iir.lier times be particular to have it closed, except whe»you wact to feed your boiler without forcing any water through th9hose. 10. In the smoke-pipe, directly over the upper flue-sheet, avalve is placed, which is called the variable exhaust-valve. By oper-ating this valve the size of the aperture for the escape of the steamfrom the steam-cylinder is increased or diminished, thus regulatingthe draft of the chimney and the heat of the fire. This valve should baclosed, when the engine h started, until a fair working pressure of steamis obtained, after which it may be opeued. 11. Care should be taken tohave the suctiou hose and its connections air-tight. 12. Open your<iischarge-gate and cylinder drain-cock before stiirting your engine.13. Dout let the flues of your engine get filled up. 14. Be particularto tau.e your engine off the springs before you

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