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...Representing the American 3-Way Prism Company...


  • London, Ontario
  • Montreal, Toronto, Winnipeg


  • ?-1890-1929-?
The Maximum Light Glass is a combination of prisms and lenses used as a substitute for window, plate or stained glass, said to increase the light from 5 to 20 times. It consists of carefully arranged lenticular surfaces running in vertical direction on the outside and at right angles to prismatic projections on the inside, and is manufactured in various size sheets and angles to suit all existing conditions (see Fig. 185).
Building Materials · 1905
Maximum Light Glass
Fig. 185. Maximum Light Glass.


Bird's eye view lithograph of London, Ontario, 1890 Hobbs Manufacturing Company ad, ca.1892 Hardware and Metal ad, May 28, 1904
Bird's eye view of London, Ontario · 1890 Hobbs Mfg Co · ca.1892 Hardware and Metal · 1904

Canadian Scenic Views and Guide Book, 1906 London Board of Trade, 1907 Construction, October 1908
Canadian Scenic Views and Guide Book · 1906 London Board of Trade · 1907 Construction · October 1908

Construction · November, 1908 Construction · October, 1909
Construction · November, 1908 Construction · October, 1909

Directory of Building Supplies, 1914
Directory of Building Supplies · 1914


  • T. S. Hobbs, President; S. F. Wood, Vice-President; G. T. H. Platt, Treasurer · The Retail Merchants' Journal of Canada · 1903
  • "HOBBS, Thomas Saunders; b. Langtree, Devon, Eng., 1856; a. of Thomas and Mary Hobbs; unmarried. Educ: Methodist Coll., Shebbear, Devon, Arrived Can., 1873. Rep. London in Ont. Leg., 1894-98; retired for business reasons. Pres., Hobbs Manufacturing Co., Toronto; Independent Cordage Co., London, Ont.; Hobbs Hardware Co., Winnipeg. Recreations: baseball, fishing, farming, travel. Address: London, Ont. Clubs: London, London; Toronto Hunt, National, Ontario, Toronto." —The Canadian Who's Who · Volume 1, 1910
  • "HOBBS, Hon. Lieutenant-Colonel Thomas Saunders—President, Independent Cordage Co.. London; (with branches. Montreal. St. John, N.B. Halifax. Winnipeg and Vancouver); President. Hobbs Hardware Co. (with branches, Montreal, Toronto and Winnipeg); President, Hobbs Manufacturing Co.; Director, Trusts & Guarantee Co. Born Langtree, Devonshire, England, 1856, son of Thomas S, and Mary Hobbs. Educated: Methodist College, Shebbear, Devonshire. Came to Canada with his parents. 1873; entered into mercantile lite, London; Member Ontario Legislature for London, 1894-1898; retired for business reasons; formerly President, London Liberal Club; formerly Vice-President, London Board of Trade, and otherwise identified with the city's business interests. Director. Ontario Reform Association. Formerly Major. 1st Hussars; appointed Honorary Lieutenant-Colonel. 1st Hussars. 1910. Clubs: London; Toronto Hunt; Ontario (Director); National. Recreations: baseball, fishing, farming, travelling. Liberal; Methodist. Residence: London, Ont." —Who's Who and Why · Vol. 6 and 7, 1915-16


  • "CANADA'S GREAT GLASS HOUSE. Upon another page of this issue appears the advertisement of The Hobbs Manufacturing Co., Limited, of London, Ont., importers and manufacturers of glass for all purposes. This well known Company has had an experience of nearly a quarter of a century in catering to the wants of the trade in glass, and with enlarged and up-to-date offices and Manufacturing plant, should have no difficulty in retaining its prominent position in the glass business. The Hobbs Manufacturing Co. make a specialty of Art Stained glass for ecclesiastical and domestic use, and have recently improved their facilities for the manufacture of this glass by the installation of a first-class modern electro glazing plant. This Company also imports annually very large quantities of window glass, and of all kinds of fancy glass for building purposes. Having always on hand a very large stock of window and fancy glass, customers of the Hobbs Manufacturing Co., can depend upon prompt shipment and reasonable prices." —The Retail Merchants' Journal of Canada · 1905
  • "A NEW LIGHT GLASS. MODERN conditions of buildings, involving the erection of business and other structures in the most crowded and restricted areas, and the utilization for business purposes, such as underground basements and deep stores, are responsible for many new inventions intended to overcome or minimize unsatisfactory conditions, prominent amongst which is bad lighting. It is claimed, and on good grounds, that the MAXimum Light Glass causes dark interiors to become light. This patent is a daylight increasing window glass combining lenses and prisms arranged in the form of a window glass to gather the light from the sky and to project and diffuse it into all dark and otherwise useless apartments and spaces. Therefore, if such a glass as this increases the tight from five to twenty-five times, together with complete diffusion, it becomes a most valuable adjunct. It is, moreover, convenient and sightly and may be utilized in the form of lead lights of various designs. The MAXimum Light Glass is made in sheets from 42 inches high to 90 inches in length, the outside of which is formed of parallel lens bars of large radius, while the innerside is formed of parallel bars placed at right angles to the lens bars. The function of the external lens forms is to to refract the light in a horizontal direction and it makes use of lateral rays which would strike at so great an angle that they would be almost entirely reflected from a plane surface. The forms of these lens is such that there is no reflection from the inner face of the prism, thus securing the emission of all rays that strike these surfaces. The function of the internal prism forms is to refract the light in a vertical direction, which, combined with the horizontal refraction of the external lenses produce nearly uniform diffusion of light in the room. All the light is gathered and utilized, i here being a complete absence of glare, and all streakiness of effect, which form the objectionable defects which are found in the use of ordinary Sheet Prismatic Glass. The price of MAXimum glass is only slightly in advance of the ordinary sheet prismatic glass." —Hardware and Metal · January 21, 1905
  • "MAXimum Light Glass, is the title of an exceedingly interesting and well-illustrated booklet issued by the Hobbs Manufacturing Company, Limited, of London, agents for Canada for E. J. Dobbins, owner of the patents for this modern illuminating glass. The modern building must have light, says the pamphlet, and it proceeds to show a series of buildings which have been modernized by the use of MAXimum light glass, which is said to be the only daylight-increasing window glass combining lenses and prisms. The cuts showing rooms in basements under ordinary conditions, artificial light being absolutely necessary, and after the installation of MAXimum glass are splendid examples of the before and after taking idea. The glass is smooth on one side and saw-toothed on the other, this system making it possible to utilize every particle of daylight and project it to every part of long rooms, a uniform white light being thrown into every corner. Light passing down shafts between buildings is gathered and used to light rooms satisfactorily, one example of this being noted where light from a shaft 105 feet deep is gathered and diffused through a room 40 feet long. The light can be used to advantage by retailers, manufacturers and by builders and all who in- tend erecting new buildings or re-constructing their present premises should investigate this new light. When writing for information, mention Hardware and Metal." —Hardware and Metal · February 11, 1905
  • "CONSTRUCTION. Gas Plants, Elevators and Warehouses. 99 × 33 feet, on Queen St., early this spring. London, Ont.—The Hobbs Hardware Co., of this city, T. S. Hobbs, president, Mr. Mathews, secretary, both of London, intend erecting a large warehouse and manufacturing plant here." —Construction · Vol. 1, Page 70, February, 1908
  • "London, Ont.—The factory of the Hobbs Glass Works, London, has been completely destroyed by fire. The Canada Furniture Company, whose buildings adjoin the glass works, was damaged to the extent of about $125,000. Rebuilding will be commenced at once." —Construction · Vol. 1, Page 61, April 1908
  • "19. MISCELLANEOUS NEW GLASSES. As mentioned in the beginning of this paper, progress in the development of new glasses is so rapid that information can be given only on those kinds that are being actively marketed in this country. Through the courtesy of importers, especially the Hobbs Manufacturing Co., London, Ontario, Canada, we have been able to obtain data on a number of newly developed ultra-violet transmitting glasses of English, French, and German manufacture." —Bureau of Standards Journal of Research · Vol. 3, 1929
  • Store Fronts by Hobbs · 1929