The Optical Magic Lantern Journal (September 1900)

The Optical Magic Lantern Journal and Photographic Enlarger. 113 think so, yet the reader will find that the construction of this slide is comparatively simple. It will, of course, be made more complicated according as the number of effects desired to be produced is increased. The ordinary framework is employed, and part of the fittings are attached to a fixed glass. The other parts are fixed to the interior of the framework. The reader’s attention Fig. I. is now directed to The conjuror’s trunk or body, with a base attached, is cut out of thin wood, and glued to the surface of the fixed’ glass. Most of the other parts are made of thin metal. The head, 8, is, however, cut out of celluloid, and is pivoted to the body at T, and to a small connecting link at vu. The features are painted on it. Thelink, whichis not connected with the body, is pivoted to the arm x, and to the rod y at the same point, namely v. The arm x, holding the indispensable magic wand, is also pivoted to the body at w. The left arm 1, holding the cover of the dish, is pivoted by a stationary pivot to the body at J, and to the other long rod at K. The rod y passes through the guiding plate z, screwed to the base of the conjuror, and is pivoted at 2 to a long horizontal beam pivoted to the framework at 3, the end of which is bent up at right angles at 5. The edge is then cut so that a slope is formed. 1 is a spiral spring, the purpose of which will be seen presently. An enlarged drawing of the guiding plate z is shown in Fig. II:; 4 is a screw that serves to limit the play of the beam with which it is shown in contact; 6 is a peculiarly shaped plate screwed to the horizontal framework. As its shape is clearly shown in Fig. III. it need not be described verbally ; 7 is a lever pivoted at 9. A washer serves to keep it the proper distance from the ‘ framework; 8 is a spiral spring fastened at one end to the framework and attached to the lever 7 ; 10 is a screw forming a stop to 7. We will now return to the rod connected with the conjuror’s left arm. This passes through a staple L (shown in Fig. II.), and is pivoted to the curved lever nN at mM. ‘This lever is pivoted at 0, and is furnished with a spring p, the other end of which is secured to the framework. R is a rest fixed to the upright frame. The table-cloth and vessel placed upon it are cut out of thin wood and glued to the fixed glass. Two of the legs are outlined on the glass. The third upright leg is formed by a strip of celluloid c which passes through two similar guides a and B, shown in Fig. II. a is fixed to the table and B to the base. At the top of the celluloid is a small rabbit. This strip, with the rabbit, is cut in one piece. represented in Fig. II. It is The lower end of the strip is pivoted to the lever p, which is in turn pivoted to the frame of the slide at z. A slot has to be cut in this instance to allow for the play of the lever. F isa spiral spring secured at , one end and connected with D at the other. G is a screw serving asa stop top. H regulates the distance through which p should be moved. It should have been menticned that q serves as a stop to the lever n. Upon the fixed glass are painted the curtains, : lamp, etc. that would naturally form the back ground to the conjuror upon the stage. They are shown in detail in the design forming the heading of this article. When inserted in the optical lantern, the conjuror is seen holding the cover of the vessel on the table in his left hand, and grasping his wand with his right. The lever n is then pressed up to the rest r. By this means the rod in connection with the lever is pulled down, and the left arm, pivoted at s, and holding the cover, consequently pulled up.