Specification of William Pilling and Benjamin Harlow : stench traps, &c.

  • Pilling, William.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Pilling and Benjamin Harlow : stench traps, &c. Source: Wellcome Collection.

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    Provisional Specification. A.D. 1873.—N° 480. 3 Tilling & Harlow's Impts. in the Construction of Stench Traps, 8fc. our executors, administrators, and assigns, should at any time agree with and no others, from time to time and at all times thereafter during the term therein expressed, should and lawfully might make, use, exercise, and vend, within the United Kingdom of Great Britain 5 and Ireland, the Channel Islands, and Isle of Man, an Invention for “ Improvements in the Construction of Stench Traps and Grids for Street and other Sewers or Drains,” upon the condition (amongst others) that we, the said William Pilling and Benjamin Harlow, by an instrument in writing under our hands and seals, should particularly describe and ascer- 10 tain the nature of the said Invention, and in what manner the same was to he performed, and cause the same to he filed in the Great Seal Patent Office within six calendar months next and immediately after the date of the said Letters Patent. HOW KNOW YE, that we, the said William Pilling and Benjamin 15 Harlow, do hereby declare the nature of our said Invention, and in what manner the same is to he performed, to be particularly described and ascertained in and by the following statement:— This Invention relates to improvements upon that construction of stench trap, well known as Lowe’s Patent, which has hitherto been open 20 to objection on account of the grid only extending partially across the upper surface of the framework or casing, and as such grid has been inadequately supported upon pivots or hinges it has been liable to breakage. Now this Invention consists in forming the cover or upper part of the 25 water lute at a lower level than the grid, which covering in the form of a suitably curved or shaped plate is either cast separately or is formed of wrought or galvanized iron, and is placed in the mould so that when the molten metal is poured in it will form a part of the main casting, and ensure a smooth surface both on the upper and lower side of such 30 covering, which smoothness is desirable and could not be obtained in the case of a casting when cores or green sand are employed in the formation of the water lute ; by this means the whole of the upper surface is avail¬ able for being covered with a grid which is supported upon a ledger unning completely round the inside of the casing or framework, and this Inven- 35 tion further consists in constructing the mouth or outlet of the water lute with a cylindrical or other suitable shaped socket, so as to facilitate its connection to a drain pipe, and thereby make a more perfect joint.