The Optical Magic Lantern Journal (November 1895)

179 being drilled so as to connect with the smaller pipes. The purifier is a 6-inch length of 4-inch steam pipe, both ends supplied with caps screwed on. Into one of the caps I drilled two holes to receive the inlet and outlet pipes. I also fitted two taps, one at the bottom in order to facilitate emptying, and another near the top so as to ascertain when it was full. For the sum of five shillings I got a tinsmith to make a galvanised circular iron tank, about the height of the barrel, and of such diameter as would enable it to slide easily inside of it. Two strips of galvanised iron were rivetted cross-wise with a piece of thick rubber Cas bratke? The Optical Magic Lantern Journal and Photographic Enlarger. belting between, and a hole cut a little larger | than the pipe in centre, which acts as a guide to the holder. Next two guide the top of the gas tank. These guides were made of 3-in. iron rod. A wooden slab was made to place on the top, and into this were made holes to enable the uprights to pass through. So as to get the necessary pressure, bricks or other weights are placed upon the wooden head. The apparatus is now complete, and will be found to hold sufficient gas for an | hour's exhibition with mixed jets, and the gas | can be generated and ready for use at a moment's notice. I always buy my chemicals by the keg, at wholesale rates, so that my gas costs me about sixpence an hour. The diagram will enable one to follow the Position of the respective parts of the apparatus. 70. ON going to press, we have received a copy of the new catalogue of Jas. Levi & Co. (Leviathan). It contains a aplendid assortment of lanterns, and a huge list of sets of slides. - uprights were | attached to the sides of the barrel, so as to | Holder for a Developing Set. By H. P. D. Ir is only right for me to commence by saying that I got the pattern of this convenient holder from Mr. J. Hay Taylor, our Editor, who had made one for himself, and kindly showed it to me when I called at his office; and whatever credit is due should be to him, and also to Messrs. Butcher, for it was the latter who introduced the bottle clip, which, I presume, Suggested to Mr. Taylor to make the stand. However, I find it one of the most convenient little articles I have in my outfit. When I am about to make any lantern slides (which I do in my back-parlour), I have all the necessary chemicals at hand, and these can be moved at one lift. When I set to work to make any apparatus, I always endeavour to do my best, and for the sake of the little difference in price between soft and hard wood, I always select the latter ; consequently I made my stand of walnut. Before commencing, it is necessary to get Fig. I. half a dozen of the Primus bottle clips, as Fig. II. shown in Fig. I. It will not be essential to give the measurements of the stand, for the: clips being all of one size these must be arranged to suit them. The base (k), after being marked out, is cut into shape with a fretsaw, as shown in Fig. II., and on this at right Fig. Ill With the addition of a simple handle, the whole thing so angles is fastened the upright at (F). far will assume the aspect of Fig. III. The clips are next fastened, two at either side, and one at either end, at the positions (a) (B) (C) (D).. After finishing off the wood-work, it can then be