Kinematographic apparatus

1897 11 11 moy harrison


Kinematographic apparatus

"Improvements in or relating to Apparatus for Taking or Displaying a Series of Photographic Images in Rapid Succession."

Kinematographic apparatus.-Relates principally to improvements in the feeding-mechanism of strips z, which are brought from a roller g and passed, if desired, to a roller g1, intended either to receive a series of photographs of objects in motion, or to project such photographs, previously taken thereon, upon a screen. A plate b, capable of sliding in a vertical guide c2, is provided with hollow studs e, e1, and a second plate c is connected thereto directly by a solid stud d1 passing through the hollow stud e1, and by a lever j and a solid stud d passing through the hollow stud e. The plate c carries the points c1 which enter the perforations of the film to feed the latter forward. The hollow stud e bears against the sides of a
groove a1, a2 in a circular roller a, the groove having two portions a1 at the greatest distance apart running at right-angles to the axis of the roller, and two other portions a2 at about an angle of 45° thereto. The solid stud d bears against the bottom of the groove, which is made deep for about 1/3 of its length, then shallow for about 1/6 and again alternately deep and shallow for another 1/3 and 1/6, the stud being forced always to the bottom of the groove by a spring f. By this arrangement the points are forced inwards and outwards at the required times, while the film is pulled down suddenly, and remains stationary for a much longer period. In another arrangement, there is only one pair of studs, which is situated as at d1, e1, and the groove on the roller is situated higher up so as to engage with these studs. In a modification, instead of a cam roller, a disc may be used having a cam-groove of varying depth therein.

Patents for inventions. Abridgment Class Photography, 1897, p. 41-42.


1 Ernest Francis Moy et G. H. Harrison  
2 04/11/1897  
3 Grande-Bretagne  
4 G.B. 25.625