1861. 



NEW ENGLAND FARMER. 



481 



A NEW VENTILATOB. 



Mr. Lyman sends us the above cut and the ac- 

 companying description of a new ventilator, which 

 has the advantage of not being a patented "no- 

 tion," and of being of easy application to any 

 style of room. As we have never seen one in 

 operation, we allow Mr. Lyman to speak for him- 

 self. 



The ventilator consists of a pipe which is open 

 at the top, and connected with the chimney flue 

 at the bottom of the room, as seen in the cut. 

 In rooms warmed by stoves the supply of air 

 comes in at the windows and doors, and being 

 colder than the air in the room, falls to the floor, 

 as is represented by the cut, by the arrows with- 

 out feathered ends ; as this cold air comes in con- 

 tact with the stove, furniture and persons in the 

 rooms, it becomes rarified, and rises to the ceil- 

 ing, as represented by arrows with feathered ends. 

 On its way up it becomes impure by the exhala- 

 tion of our bodies and lungs, and by the draft of 

 the chimney is drawn off", from the upper part of 

 the room, down through the ventilator, and is 

 discharged into the chimney flue at the bottom 

 of the room. If it entered the flue at the top, it 

 would destroy the draft of the stove. In a room 

 occupied by from three to six persons, the pipe 

 should be seven inches in diameter, if round, if 

 oval (as in the cut) ten inches by five, with a 

 seven-inch round pipe, to connect it with the flue 

 at the bottom of the room. If the room is large. 



eleven by five and a half inches connected with 

 the flue by an eight-inch pipe is none too large. 

 I have some thirty of them in operation, and 

 none fail to do well. Some of them have been 

 in use four years. A round, tin pipe, se^en inch- 

 es in diameter, costs from $2,50 to $3,00 ; if oval, 

 about $4,00. All who have used 't prize it very 

 highly. I think it a better ventilator than an 

 open fireplace. It is not patented, and is free to 

 all. In rooms warmed by a furnace the ventila- 

 tion should be from the bottom of the room, be- 

 cause the supply air being heated, it rises to the 

 top of the room before it is used. 



David Lyman. 

 Middlefield, Ct., Aug. 23, 1861. 



Seamless Shoe-Uppers. — A patent has re- 

 cently been taken out in England for making the 

 leather uppers of shoes without seams, so as to 

 save the expense of sewing, and, at the same 

 time, obtain uppers that are never aff'ected with 

 the ripping-out disorder, which has become so 

 common with uppers that are sewed with some 

 machines. The method of making the seamless 

 uppers is to cut them out the desired shape with 

 the middle opening for the foot : then put each 

 into a mold, where it is pressed into proper shape, 

 ready for the last on which to sew the welt and 

 sole. Shoes thus made are said to be more du- 

 rable than most of those which have sewed up- 

 pers, and prove economical to the wearer. 



