GB855101A - Improvements in and relating to the preparation of tailors' patterns - Google Patents

Abstract

855,101. Photographic processes. MULLER. N. Dec. 27, 1957 [Jan. 4, 1957], No. 40210/57. Classes 97(1) and 98(2) A method of manufacturing tailors patterns comprises projecting on to a screen an image of the person for whom the clothing is intended superposed on a measuring grid, projecting from a second projector an image of a person for whom a tailors pattern is available, adjusting the size and shape of the second image until it coincides with the first, projecting with the second projector in the same position an image of the available tailors pattern and obtaining therefore the desired tailors pattern. A person of standard dimensions is photographed in two positions (Fig. 4) to provide a double exposure with a background grid on a single photographic transparency and a pattern of the cut pieces of cloth with vertical and horizontal dimensions appropriately disposed which comprise the perfectly fitting suit for the standard person is reproduced on a photographic transparency on the same scale and background grid. The subject for whom a pattern is to be devised is photographed in the same manner as in Fig. 4 to provide a further transparency. The transparency of the standard person is inserted in a projector 16 (Fig. 7) mounted on a trolley 15 and slidable on rails 14, and the transparency of the subject is inserted on a second projector 12 mounted on a trolley 11 which carries a semi transparent mirror 13 at 45 degrees to both optical axes and is slidable on rails 10 perpendicular to the rails 14 such that both images appear simultaneously on a screen 17. The trolley 15 is then moved along the rails, and an anamorphotic lens on the objective of the projector 16 is adjusted until both images have the same overall length and width. The trolley 11 is then withdrawn and a third trolley 18 riding on the rails 10 and carrying a mirror 19 inclined at 45 degrees of the horizontal is moved into the position formerly occupied by the mirror 13 such that the image from 16 is reflected through holes in the trolley and in the floor of the room on to the surface of a table the distance of which from the projector 16 is equal to that of the screen 17. The transparency of the standard pattern (Fig. 5) is then exchanged for the standard person transparency in the projector 16 and the image appearing on the table surface is then a pattern distorted to suit the dimensions and shape of the subject - the outlines may be chalked on paper or reproduced photomechanically. Numerical examples are given as to the scaling. The projectors may be on either side of a semi-transparent screen, or side by side.