GENERATOR BLOWERS. 251 



shown in Plate XXXV, Fig. 2, as manufactured by Messrs. llumsey & 

 Co., of Seneca Falls, j^. Y., may be given as typical of those most com- 

 monly on. sale. It is susceptible of attachment to the frame of auy 

 vehicle or machine. The > cjiinder, c, lever-fulcrum and piston-rod 

 guide, o, are attached by lugs to the board, b. The brake, i I, has a 

 link-shaped pitman, i o, communicatiug its motion to the piston-rod, r. 

 At s is the discharge, which may be coupled by hose or otherwise, with 

 a blast feeder and its distributing accessories for dispersing poison. 

 Air-pumps for other purposes are noticed below. 



* D.— GENERATOR BLOWERS. 



[Plate XXXVII.] 



The feeding, atomizing, and distributing devices already described in 

 other kinds of blowers may be operated by steam blasts, and for this 

 purpose can be combined with any ordinary generator that will sui)ply 

 volume enough of steam and serve therewith as a force-medium. Many 

 special examples of such combinations might be described, but only 

 one will be noticed as apx)earing in the description below. 



" The Steinmann Vaporizer. — This was invented by Mr. Charles Stein- 

 mann, of Napoleonville, La. (patent JS'o. 74165, February 4, 1868). Its 

 character may be thus briefly given : Steam is raised by a transportable 

 steam-boiler, and issues from a series of jet-pipes or nipi)Ies. At the 

 same time some cheap oil, as kerosene, lard, or cotton-seed oil, is made 

 to drip from a reservoir over the orifices froui which the steam escapes. 

 The oil is thus vaporized and envelops the rows of plants between which 

 the machine is to be drawn. The inventor claims that the vapor kills 

 the worms without injuring the plant, and that one application will pro- 

 tect the field for the rest of the season, and that his invention '■ upon 

 its general use will finally exterminate every tribe of insect,' &c. It is 

 hardly necessary to say that the two latter claims are Utopian and ex- 

 travagant. 



''The following is a description of this machine in the inventor's own 

 words ; the Plate XXXYII, Fig. 1, being a side elevation, and Fig. 2, 

 a rear end view of the machine : 



''A represents the receiver or reservoir to contain the oil, and B a funnel for supply- 

 ing" the boiler with water, and which connects directly with a heater, E, that is placed 

 on top of the boiler, instead of with the boiler proper, in which heater a supply of 

 water is always kept, to be heated by the radiation of heat from that part of the 

 boiler or shell of the boiler on which it rests. The interior of the heater is connected 

 with the interior of the boiler, F, by two pipes, H and O, which are each provided 

 with a stop -cock. By this mode of connection, the water in the heater can be re- 

 tained or driven into the boiler at pleasure, it being only necessary to keep the cocks 

 closed to retain it, or to open them to force the water into the boiler. The latter re- 

 sult is accomplished by the pressure of the steam through pipe, H, the water going 

 into the boiler through pipe, O. Whenever the water is thrown out of the heater into 

 the boiler, the former should be refilled through the funnel, B, the stop -cock, in the 

 short pipe, R, to which it is attached, being opened to allow the water to enter. On 



