Up: Patent Index

1840 · Bellford · "Combining Glass with Metal for Use in Parts of Structures and Pavements where Translucent Medium desirable" · Page 4 Home  > Prism Glass  > Patent Index  > Page 4

1,840: 4 of 9

4	A.D. 1853.--Nº 1840.
Bellford's Improvements in the Combination of Glass with iron, &c. enter between the glass and the said bottom, and thus prevent the contact. I afterwards pour in a sufficient quantity of the cement to fill the space between the glass and the rebates. The cement is shown in Fig. 3, in brown color.     When a metal packing is employed to unite the glass and iron the glass lights are made in the form shown in Figs. 14, and 15, which form resembles two frustums of cones united at their bases, giving the sides a section of the form of the letter V. The rebates to receive them are made considerably larger, but they have parallel sides, as shown at b, b, in Fig. 5, in the vault cover E, though their bottoms may be conical. The packing ring C, is of lead; it may be cast round the glass G, in a mould before being placed in the rebate, or may be cast round the glass G, after it has been put in its place, in either case it requires to be caulked to make it close and solid, and to make it fill the inequalities in the surfaces of the rebate which holds it in place. Great care must be taken to prevent the contact of the glass and iron.     The glasses may be in the form of lenses, or of any other form that may be desirable, either plain or ornamental, and should stand with their outsides nearly level with or not much above the surface of the metal, especially for pavements. In pavements for public places it will be advisable to have the metal studded between and around the glasses with numerous small bosses d, d, as shown on the vault cover E. These bosses will serve the double purpose of protecting the glass, and giving a good foothold. I do not confine myself to the use of the metal or the cement packing in any particular positions, as either kind may be used under all circumstances.     F, (Figs. 1, and 2,) represents either a window sash or a frame containing "panes" or "tiles," as the case may, the construction being the same whether it is used as a window or part of the wall or the roof of a building, or as a floor or pavement. It is provided with suitable compartments to receive the "panes" or "tiles," which are secured by pins e, e, as shown in the Drawing, or by other suitable means. The joints may be made tight with iron cement. The sash or frame may be made of any convenient size, and when properly supported a number