Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . s and the spacing arrangement gives a picture i^ in. by i]4> in.,with the base-line to the side of the film, which is,however, of the usual size. The apparatus takes anygauge, English or French, but in the negatives abovereferred to the perforations are circular in sets of threebetween the pictures instead of on the margin. WATSONS MOTORGRAPH. This apparatus actuates the film by means of asprocket-roller containing a continuously wound sp
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . s and the spacing arrangement gives a picture i^ in. by i]4> in.,with the base-line to the side of the film, which is,however, of the usual size. The apparatus takes anygauge, English or French, but in the negatives abovereferred to the perforations are circular in sets of threebetween the pictures instead of on the margin. WATSONS MOTORGRAPH. This apparatus actuates the film by means of asprocket-roller containing a continuously wound sprocket-roller bears a ratchet, which is locked bya spring-pawl lifted at stated intervals by the action of a cam on the sameaxis which suppliespower to the con-tained spring. A fairidea of this arrange-ment is given in If employed asa camera, two spool-boxes take the placeof the open spool andloose film seen in Fig,172, The apparatusis above all distinguished by its compactness. Its sizeis far less than that of many hand-cameras, and it alsopossesses the advantage of easy adaptability to anyordinary optical Fig. 172. MESSTER S MACHINES. These are constructed in various patterns, thesimplest form of Kinetograph shown in Fig. 173 beingintended for home use. The lighting is by oil, but FRESJENT-DAY APPARATUS. 157 a safety-shutter to the condenser and also an alum-trough are provided, while another pattern provides alsofor the projection of ordinary slides. The Amateur-Kinetograph is ofsomewhat noveldesign, the usualpair of spool-boxes employedin camera - workbeing combinedinto one darkslide, as seen onthe right in The instru-ment itself standson the left readyfor projectionwork, and it will be noticed that the mechanism isfrictionally driven from the large hand-wheel which
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
