Patent GB-190227164-A (GB)
Title: Improvements in or relating to Glass or other Pens and the Manufacture thereof.
Inventor: DALLAS DUNCAN CAMPBELL
Filed: 1902-12-09
Granted: 1903-12-09
Abstract: 27,164. Dallas, D. C. Dec. 9. Pens and penholders.-A pen for writing or drawing consists of a hollow cone or pyramid of sheet metal, glass, celluloid, or other material, which may have a slit throughout part or the whole of its length. The end of the cone or pyramid is truncated, and has an orifice e, Fig. 6, through which the ink or colour may flow. Several short slits may also radiate from the apex of the cone. When the pen is made from sheet metal, the long slit is formed by the two edges of the blank which come together when the latter is bent into shape. One or more additional orifices e<11>, Fig. 10, may be made in the sides of the pen to admit fluid more readily in dipping, and to admit air. The truncation of the pen may be in an oblique plane, as shown at f, or the point may be concave, as shown in Fig. 12. When made of sheet metal, the pen may be triangular in section, the springy nature of the sides serving to hold it upon a holder. Or the pen may be formed with a barrel to fit upon a wooden or other holder, or a screwed part to screw into the holder. The base of the pen may have a flange or projection g, Fig. 29, to prevent the fingers from moving down too close to the point, and it may be shaped so as to prevent the pen from rolling when laid down, and to keep the point clear of the paper. The pens may be screwed or otherwise attached to tubular holders, or such holders may be formed in one with the pens. A small tube, fitted with a screwed plug or cap, may be connected to the top of the holder. The plug may be unscrewed or removed to admit air. At the other end of the holder is a piece with a small orifice, through which the holder may be filled. Two of the conical pens may be connected to each other at their bases, or a short cylindrical piece may be interposed. Or a solid piece may be interposed. A filling-orifice m, Fig. 39, is made in each pen so that different inks or colours may be used in the two pens. The filling-orifices may be afterwards closed by a removable elastic band. When made of glass, the pen may be shaped as shown in Fig. 40. The end of the holder may be fitted with a perforated plug, by which the flow of fluid may be regulated. One or more thin tubes may be placed within double or single ended pens to prevent the ink from flowing out too freely when a good quantity has been taken up. Or a tube having a small orifice may be inserted so that its orifice comes just above the orifice of the pen. In one arrangement, the fine tube is funnel-shaped at the top and angular at the bottom, to prevent it from sticking to the side of the outer tube. In another form, the pen is composed of two tubes. The inner tube n, Fig. 38, having a contracted portion p, and a tapering writing-portion q, is secured at r, r<1> to the outer tube o. In all cases the sides of the pen may be curved instead of straight, while the pens may be ribbed or grooved externally. The pens may be charged with solid colour which is preferably contained in a fabric, which will allow the access of water or other solvent to the colour.