Repertory of Arts, Manufactures, and Agriculture: Consisting of Original Communications, Specifications of Patent Inventions ...T. and G. Underwood, 1820 |
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acre action ammonia antimony apparatus appear applied ascer atmospheric air barytes bees boiler boiling boracic acid borax bottom burned clay bushels carriage cloth cock colour common common turnip condensed crop cupel cylinder described Devizes dung employed Epsom and Ewell evaporation experiments feet fire fixed flue fluid frame grammes heat hive horizontal Hygrometer improved inches invention iron plate knob kohlrabi labour lamp liquid liquor M'Adam machine manner manufacture means melted metal method Middlesex mode mucilage muriatic muriatic acid muslin needle observed operation opium oxidation oxyd oxygen oxygen gas pass piece pipe piston placed plants portion produced proper pump purpose quantity reservoir retorts road roller screw shewn shews side soot spring steam stone stroke sufficient sulphate sulphuric acid surface tiles tion top-dressing tube turnips Uckfield ulmin valve vertical vessel weight wheel whilst whole wood-ashes XXXVI.-SECOND SERIES
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175 페이지 - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon...
120 페이지 - It will be perceived that all these processes are nothing more than preparatory measures, for the operation which is to succeed, viz. that of TINNING. For this purpose, an iron pot is nearly filled with a mixture of block and grain tin, in a melted state; and a quantity of tallow or grease, sufficient, when melted, to cover the fluid metal, to the thickness of four inches, is put to it. However, as some gentlemen may not be acquainted with the difference between block and grain tin, it may be remarked,...
244 페이지 - STONE": in which said Letters Patent there is contained a proviso obliging me, the said Joseph Aspdin, by an instrument in writing under my hand and seal, particularly to describe and ascertain the nature of my said invention, and in what manner the same is to be performed...
124 페이지 - Were it not for this parting, the wash-man must skim the oxide off the fluid metal every time he puts plates into it. The pots of which I have given a sketch being all in a state of fitness, the wash-man commences his part of what remains of the business, by putting the plates which have undergone the various operations hitherto described into the vessel of grain-tin, called the...
93 페이지 - ... nothing is to be laid on the clean stone on pretence of binding; broken stone will combine by its own angles into a smooth solid surface that cannot be affected by vicissitudes of weather, or displaced by the action of wheels, which will pass over it without a jolt, and consequently without injury...
90 페이지 - The design of putting the plates into the troughs, singly, is, that there may be more certainty of the liquor getting between them, and both the sides of every plate being soaked alike in the lies. In this liquor they remain for ten or twelve hours standing on the edges, but they are turned, or inverted, once during that time. This operation is called working in the lies. The next operation is that of steeping in a mixture of sulphuric acid and water, in proportions which vary according to the judgment...
124 페이지 - The asterisks show the places where the workmen stand, and also mark those pots which have heated flues under them. No. 4 has no fire under it. The parting in the wash-pot No. 2 is a late improvement. The design of it is to keep the dross of the tin from lodging in that part of the vessel where the last dip is given to the plates. By using the common tin in the first process of tinning, much oxide, or dross, adheres to the surface of the plates, and this runs off in the wash-pot, and comes to the...
87 페이지 - ... inches long, and 10 inches wide, be bent in the centre at an angle of about sixty degrees, and then put to stand on the two ends, we shall have the form of a plate No. 1. properly bent for the scaling oven. The operation of cleansing, as it is called, and which is preparatory to the process of scaling, is commenced by steeping the plates for the space of four or five minutes, in a mixture of muriatic acid and water, in the proportion of four pounds of acid to three gallons of water. This quantity...
91 페이지 - ... ounces, the road is to be put in shape and a rake employed to smooth the surface, which will at the same time bring to the surface the remaining stone, and will allow the dirt to go down. When the road is so prepared, the stone that has been broken by the side of the road is then to be carefully spread on it — this is rather a nice operation, and the future quality of the road will greatly depend on the manner in which it is performed. The stone must not be laid on in shovels fully but scattered...
123 페이지 - ... subsequent process, called washing. As this process is rather complicated, it will be necessary to describe it with some minuteness. In the first place, the wash-man prepares an iron pot which he nearly fills with the best grain tin in a melted state — another pot of clean melted tallow, or lard free from salt — a third pot with nothing within it but a grating to receive the plates — and a fourth, called the listing-pot, with a little melted tin in it, about enough to cover the bottom to...