MECHANICS AND MANUFACTURES. 41 



and durable in construction, and is adapted to low cellars, and has the 

 additional merit of cheapness in price. 



We cxa?nined the collection of Stoves belonging to Geo. ]}. Knowl- 

 ton, of Fitchburg, with a good degree of pleasure, and although sick- 

 ness i^revented his making the display which ho desired to, we are con- 

 vinced that the collection which he exhibited had many excellent points 

 of merit. Their castings were beautiful in finish, excellent in design, 

 and are said to combine all the valuable requisites of the best inven- 

 tions in these directions. His Kadiant is .a beauty, and our wife says 

 they arc handsome, and she wants one. Mr. Knowlton also exhibited 

 a splendid collection of Hardware in the upper hall, which was decid- 

 edly attractive. 



Among the collection of W. E. Henry & Co., of Fitchburg, was 

 the celebrated American Cook Stove, which received twenty-one First 

 Premiums in 1870, and also took the First Premium at the late New 

 England Fair at Lowell. This result could only have been achieved 

 by a meritorious invention. Their collection also embraced the Hot 

 Blast Oriental, which has a double radiator in its base, and is a good 

 thing for cold feet in cold weather. Another improvement possessed 

 by this Stove is, its heating or baking oven, situated upon its back. 

 These Stoves are very ornamental. 



Messrs. Brown & Libby, of Lowell, showed a Shingle Planer, whicli 

 promises to give us again the old shaved shingle which used to last forty 

 or fifty years, and at a cost but a mere trifle, if anything, above that 

 of the common sawed shingle. It produces shingles of even thickness, 

 true taper, and a superior finished surface, and, it is claimed, at the 

 rate of twenty or thirty thousand per day. It is certainly a very val- 

 uable invention. 



John B. Farnsworth showed a new Steam Trap for ren^oving water 

 condensed in steam pipes. This Trap is automatic, and seems to do 

 its work well. 



Haskins Pneumatic Alarm Co , of Fitchburg, exhibited a very novel 

 and extensive assortment of Alarms for light-houses, sailing vessels, de- 

 tection of leaks in ships, factory signals, railroad flag-men, police ofli- 

 cers, and indeed for almost every purpose that needs an alarm or signal. 



One large machine, rocking back and forth, was designed for light- 

 houses, reefs, etc., and produced first a shrill Avhistle, and then a hor- 

 rible bray, which could be heard for miles. 



A pair of neatly designed and finished machines, operated by a 

 crank-wheel, one furnished with a horn, and the other with a whistle, 

 are for use on board vessels in fog, or in a factory, or shop requiring a 

 signal, operated by compressed air, which is the medium employed to 

 produce the sound in all the Alarms. 



One small upright hand pump was the author of a dying wail through 

 a flexible tube, which was suflicicntly piercing to penetrate the thickest 

 fog London ever felt. 



Several fancifully decorated and tasty instruments exhibited, were 

 also for use upon sailing vessels in thick weather, to warn approaching 

 vessels, and lessen the larire number of casualties at sea, and. besides 



