INSURANCE RATES REDUCED
Our New System of Hollow Tile Construction Eliminates the Vse of Steel
Writ* for Catalogue showing the Johnson System of Fireproofing: suitable for Residences and Offices as well as the largest Warehouse Buildings.
NATIONAL FIREPROOFING CO., Bessemer Bldg., Pittsburgh, Pa.
New York Boston Philadelphia Chicago Baltimore Cleveland Canton Minneapolis
We Design snd Build all Types of GREENHOUSES
Biirnham-Hitchings-Pierson Co.
Broadway and 26th St., NEW YORK
sixth avenue, Chicago, on Feb. 3. The guests were conveyed to the works by a special train on the elevated railway and, after completing the tour of the very complete and interesting plant, a luncheon was served in the company’s dining-room, which has been provided for the accommodation of the officials and chief employes.
The removal of the works from their former site was begun last October; but the company is only now completely and comfortably settled in its new location.
INDUSTRIAL PUBLICATIONS.
The extreme care which it is necessary to exercise in the making of the prisms used in the “Holophane” system of illumination is indicated by briefly recounting the process of their design and manufacture. In designing a globe for a special purpose the prisms are carefully calculated and drawn to a scale five times that of the finished globe. A section is then photographed to desired scale on a plate of steel. This plate is covered with wax, except the edge, whqre the teeth or prisms are. This, being unprotected by the wax, is etched by a powerful acid, thus forming a -sharp edge. The plate is then put into the hands of an expert mechanic, who files the teeth accurately by hand file ; a proceeding which may take weeks to accomplish and which may be rendered useless by a single slip, of the file. From the master tool thus made is made the cutting tool, which, being placed in a lathe, is used to cut the cast-steel moulds. A plunger, which is used to form the internal prisms, is made by a similar process. To form a globe the proper quantity of glass in a semi-molten state is dropped into the mould ; the plunger, operated in some casés by a steam press, is brought down into the mould and the glass thus pressed into shape. The globe so formed is then fire-polished; then crimped or shaped into final form; then annealed from six to eighteen hours; and finally placed on grinding wheels to remove all roughness. It is said that the prisms are
made mathematically accurate to the thousandth of an inch. The catalogue of the Holophane Glass Co., New York, in which these , things are told, is bound in flexible leather and printed on one side only of sheets of bond paper. Its contents are not confined to ordinary price-lists, pictures and order codes. While fully illustrated with photographs of the various forms of open and closed globes, pendants and reflectors, these views are accompanied by tables and notes showing the dimensions, kind of lamps recommended, their application to various purposes and photometric curves indicating the throw of light in all directions, as determined by tests made by the Electrical Testing Laboratories.
NOTES AND CLIPPINGS.
No Evidence of Insanity Here.—It is to be regretted that the poor lady who bequeathed her property for the erection of a Gothic structure in a central part of London (which was to be a joy forever) was declared to be of unsound mind, memory and understanding. It is of such rare occurrence for anyone to dream of creating a work of the kind, if the will had been carried out in a satisfactory manner other people might be disposed to imitate the testatrix. Miss Lina Beatrice Clayton- Browne, whose will came before the courts on Saturday last, died on March 24, 1904, in her thirty-second year. In August, 1900, she had a will drawn up while staying in Windsor. In it she directed that after the payment of an annuity “the whole of the trust fund and the accumulations of income thereof were to be applied in the erection, without buying land, of an ornamental structure of Gothic design, such as a marketcross or street-crossing refuge in the style of a market-cross, tall clock, street-lamp stand, or all combined, in a central part of London, the plan whereof shall be offered for open competition and ultimately decided upon by the Royal Institute of British Architects, and I especially desire that no in
scription of my name shall be placed on such erection. In connection with the construction of the said Gothic erection I would wish that no large masses of dark metal, such as dark bronze or cast-iron, or of dead white marble or alabaster should be used, whether as statues or otherwise, as I consider the effect of such large masses to be toneless and blurred, particularly in a moist climate. I should also like no pigment to be used upon any but an absolutely flat surface, and then but sparingly. In deciding upon the merits of the designs, I should like particular value to be laid upon the general outline as seen from a good distance. I should like to be inscribed upon the structure in letters of a different tincture to that of the . ground, such as bronze letters in marble or stone, the following inscription: ‘Many and munificent are the gifts ministering to the ills of the flesh, therefor» is this structure dedicated merely to the more neglected gladdening of the eye.’ ‘A thing of beauty is a joy forever.’ . . .” If the words were not those of the lady herself, there is no question that her intentions were expressed in it, for the solicitor stated she gave him instructions in an exceedingly sensible manner. The value of the estate was about £12,500. Various acts were proved which were sufficient to show that on other occasions the lady’s mind was affected. The President of the Probate Court was satisfied, from the evidence, that he must pronounce against the will, and a central part of London has therefore lost an ornament.—The Architect.
Power-Plants at Coal-Mines.—Suggestions have been frequently made that the cost of electricity from coai might be materially reduced if the power-plant were situated at the mine, and the electric-current delivered over the wires, instead of shipping the coal to the power-plant many miles away. The plan has been tried recently in Lancashire, England, and has proved a success, and it is considered entirely within the probabilities that coal may be used quite as cheaply as water in electric-plants, provided