1837.] 



FARMERS' REGISTER. 



645 



would be required by the ordinary process of boil- 

 !n>T, infusion, or steeping, leachinir, &c." 



Tlie patentees claim to be "the oriifinal disco- 

 verers and inventors of the art of extractinfr the 

 soluble parts of vegetiibie substances, by means of 

 the heavv pressure of steam, water, or other flu- 

 ids, exeried upon and ihrouirh the materials to he 

 acled upon, however the pressure may be efl'ected. 

 Also the combination of the cliamberand perfora- 

 ted lid as described ; the combination of" the boil- 

 er, water pipe, and steam pipe, with said cham- 

 ber, and its said apparatus lor the purposes afore- 

 said." 



The whole process is well described, and we 

 are not aware ol any theoretical; or practical, ob- 

 jection to it ; but, on the contrary, it appears to us 

 that for many purposes it may be used with great 

 advantage. 



Fov R Portable Conkins; Stove; Charles Vale, 

 Newark, Essex county. New Jersey, March 18. 



This stove, it appears, is intended to cook by 

 means of antliracite, or charcoal, as fuel : but we 

 are unable, from the description and drawing, to 

 form any clear idea of its construction and use. 

 There are letters of reterence used, and figures re- 

 fiered to, in the description, which are not to be 

 fl)und in the drawing; we therefore nmst dismiss 

 the aSair. 



For a Hemp Brake : John Pursell, Pcrrryville, 

 JVlercer county, Kentucky, March 18. 



The brake is made in the ordinary form, the 

 patented improvement consisting in workmg the 

 vibrating swords by means of a treadle, in the 

 downward stroke, and in raising them by means 

 of springs. 



For Ti f ami fact uring Salt fi;om Salt Water ; 

 Richard K. Cralle, Lynchburg, Campbell .county, 

 Virginia, March 18. 



A very full description ol the apparatus em- 

 ployed is given in the specification, after which 

 the patentee says, " What I claim as my own in- 

 vention, not heretofore known or used, in the 

 above described machine, is the application of the 

 principle of evaporation in vacuo, to the manufiic- 

 ture of coarse and common salt. I claim to have 

 invented the means of applying a known princi- 

 ple in physics, to the new and useful purpose of 

 salt making. Tlie machine may be varied in con- 

 struction, and the principle applied in other modes; 

 but 1 claim to be the original inventor of the 

 means of applying the principle of evaporation in 

 vacuo to the manutiicture of coarse and common 

 salt." 



The apparatus, as shown in the drawings, is 

 intended merely to exemplify the principle, and 

 not to furnish a definite arrangement ; the de- 

 scription of it is elaborate and clear, but we find no- 

 thing to designate in what " its construction is 

 peculiar to the purpose ;" and therefore cannot tell 

 what is claimed ; this ought to have been distinct- 

 ly set forth, as, in our opinion, it would form the 

 only foundation for a valid claim. It has been 

 decided that the application of a known machine 

 to a new purpose is not patentable. To apply the 

 same mode to the evaporation of water from a so- 

 lution of salt, which has been applied so exten- 

 tensively to its evaporation from a solution of su- 

 gar, cannot fairly be called an invention, however 



useful it may be. If geese had never been roast- 

 ed, althouiih turkies had been usually cooked in 

 that way, "a patent for roasting geese would hard- 

 ly be sustainable. 



For a Metallic Mill; Joseph C. Gentry, Day- 

 ton, Montgomery county, Ohio, March 18. 



A cast-iron cylinder is to be banded, or other- 

 wise covered, with cast-steel, then turned smooth, 

 and picked with a pointed, steel tool. A concave 

 of cast-iron, forming nearly a half circle, is to be 

 adapted to the cylinder ; and ribs, or bands, of 

 cast-steel, projecting about one sixteenth of an 

 inch from its surface, or to be inserted in dovetail 

 grooves, extending the whole length of tlie con- 

 cave ; these also are to be filled on their surfaces. 

 The concave must be sufficiently open at one edge 

 tor feeding, and the cylinder is to beheld down by 

 springs, to prevent injury from the imroduciion of 

 hard substances. 



" What I claim is the siecl or other metallic 

 ribs, and the manner of fixing them in the con- 

 cave. And the cast-steel or other suitable metal, 

 plated or banded on the cast cylinder. The man- 

 ner of relieving the action of the cylinder by 

 sprin^Ts back of the boxes, on which the journals 

 rest. The manner of picking the cylinder and 

 ribs, presenting the sharp edges to each other, as 

 de.=?cribed above." 



Such a mill would he costly, easily put out of 

 order, and dilficult to repair. We are very appre- 

 hensive, also, that, when in the best order, it would 

 not make very good flour. The claims embrace 

 too many individual parts of the imll, some of 

 which would not be able to stand alone. 



For a Mortising Machine; George Page, 

 Keene, Cheshire county, New Hampshire, Marcli 

 18. 



The general resemblance in principle between 

 this and some mortising machines which iiave 

 preceded it, is such as to leave little apparent room 

 lor a claim, and it does not occupy a large space, 

 being to "the mode of attaching the slide to the 

 upper lever and that lever to the machine ; and 

 also ihe lower box, and circular brace as de- 

 scribed." We shall not take time to describe these 

 particulars, but have no doubt that they are equal- 

 ly good with other modes of attaining the same 

 end, and that the machine, if well made, will 

 work well. 



For a method of Making Pitch ; Henry Rug- 

 gles, city of New York, March 19. 



The refuse, or tar, such as is left in making gas 

 in the New York gas works, is to be boiled down 

 to the consistence of pitch, and then put into bar- 

 rels. 



" I claim the exclusive privilege of boiling 

 down, either in an open or close vessel, kettle or 

 still, the liquid such as is produced at the New 

 York gas house, in tlie manufiicture of gas, and 

 known there by the name o\.' refuse, until it be- 

 comes of the lhickne>s, or consistency of pitch." 



The disiilling of the spirit from the refuse, or 

 tar, of gas works, so as to reduce it to the consis- 

 tency of jiitch, is a common and well known pro- 

 cess in London, and in other places where there 

 are large gas works ; the exclusive right, there- 

 fore, is not likely to be conceded. 



