1806.] 



New Patents lately Enrolled. 



47J 



the firfl ; and, fourthly, that the rollers 

 follow each other in iuccelfion fo dole 

 as not to come upon the ikin fuddenly 

 or with a blow, but to glide or Hide ealily 

 on the ikin. 



MR. HENRY MAT'DSLAy's (maRGARET- 



stref.t), for a Prefs upon an improved 



Con/tni6thn for printing Calicoes and 



"various other Articles. 



The fpecification of this invention is 

 wholly taken up in the defcription and 

 explanation of the figures attached to it. 

 In the procefs fteam is made ule of for 

 producing heat, by which tlie colours 

 are dried as ibon as they are printed. 

 One of the cylinders made ufe of may 

 be converted into a hot prefs for various 

 purpofes, by letting fteam into the bot- 

 tom as well as t!ie top cylinder; and in 

 cafe the colour fliould dry into the plates 

 owing to the heat, cold water may l)e 

 made to paf^ through the cylinder, which 

 will always keep it cool. The manner 

 of letting in the rteam is clearly exhi- 

 i)ited in one of the figures, by which it 

 appears that tiic pipe may be commu- 

 nicated with the bailer or a finall boiler 

 on purpofc, which will fcrve one, two, 

 or more prelfes each, having ftop cocks 

 at convenient diilances. 



MR. R. \v. king's (kirbv-street); for 

 a Method of munufanuring Tin Plates 

 into Covers for DiJ/ies, ^-c. 

 The figures attached to this fpecifica- 

 tion dil'play the nature of the indention. 

 The fides or body of a cover are of en- 

 tire pieces, and are hollowed, and pla- 

 nillicd, ami grooved together, in a man- 

 ner already pnictifcd for making dilh 

 ca\ers. The body is left of a futhcient 

 depth f(jr making the improved mould- 

 ings at the bafc, inllead of adding a lini 

 to the finne by the method now prac- 

 tifed. The depth is, of courfe, regulated 

 .according to the moulding required. 

 Tlie body of the cover is brought toge- 

 tlier, and ibldcred while the top is yet 

 oif; it is then laid on a block having a 

 hollow place funk into it, and with a 

 bouge liammer a h(jllow is funk on the 

 body of the cover, and whicii is eitlier 

 liighcr or lower according to the form or 

 depth of the moulding wanted. 'I'his 

 hollow may be produced by a tool the 

 llii'-pe of the bouge ; but Mr. King pre- 

 fers liie haunner and block as being lefs 

 liable to injure the metal plates. It is 

 then placed between the Iwage or tool, 

 to form a moulding according to the pat- 

 tejn dcfircd, V\ lieu the cover .is fwaged, 



the fides are foldererl to the bottom, a 

 wire put round it, and the top is grooved 

 in the ordinary way. 



The fwag.e is made of iron or other 

 hard metal, confilting of a hammer hav- 

 ing its face cut according to tiie requiied 

 moulding. The bed of tlie fwage having 

 its face cut to anfwer the indentation on 

 tiie hammer. The hainmer works on a 

 pivot, being guided by a ferrol by which 

 the depth of the moulding is regiUated, 

 and is moved backward or forward at 

 the will of the workman, and fixed to 

 the intended place by means of a fcrew. 

 The Ihank of the fwage, which is alfo 

 made of iron, is of length to raife the 

 body (jf the cover from the block on 

 which the fwage is fixed. 



MR. WILLIAM DEVERELL's(nLACKFRIARs) 



for certain Improvements in the mod& 



of giving Motion to Hummers, ^-c. 



ziiikout the Application of Wheel-pinion 



or any other roUitive Motion by Means 



of Potrers now in Ufe. 



The improvements liere defcribed are 

 made by m.eans of fteam. To the fteam 

 cylinder is fitted a pilton with a rod in it; 

 at the end of the rod that comes out of 

 the cylinder is a hammer made faft to it. 

 The fteam is let in underneath the pifton; 

 t'he air at the toi) of the pifton will, of 

 courfe, be then compreflfcd by means of 

 the preifure of the lleain underneath. 

 After the pilton has been raifed to a 

 given heighth, there will be an opening 

 made on the under fide of the pilton to 

 a vacuum formed in the common way, 

 or the fteam may be let out into the air. 

 The compreffed air on the top of the 

 pifton v\ ill then drive down the hammer 

 with a ve'ocity equal to wh^ir it may be 

 compreffed. There may be a veffel 

 partly full of water, the top of wiiich is 

 made to communicate with the cylinder. 

 At the upper hde of the pifton there 

 muft be contrivances to adjuft the water, 

 fo that the air may be comprefl'ed in 

 proportion to the velocity of the ham- 

 mer. The hainmer may be worked by 

 fteam, or any other kind of fpring ; the 

 weight of the hammer n»uft be regulated 

 as necelfity requires. Hammers may be 

 worked from both ends of the cylinder, 

 and the air may be compreffed in the cy- 

 linder, or in any other convenient velfel. 



The ftam])ers may be worked in the 

 fame manner as the hammeis. The me- 

 thod made ufe of by the patentee for 

 workinj; preffes is as follows: — he has a 

 lever, or compoimd lever, with one end 

 of wJbicU woikiiijj ou a fulcruia or joint, 



with 



