Patent GB-367975-A (GB)
Title: Improvements in apparatus for feeding and cutting target strips for use in marksmanship indicating apparatus
IPC: F41G3/26
Filed: 1930-12-29
Abstract: 367,975. Coin - freed article delivery apparatus ; advertising. HADDAN, R., 31, Bedford Street, London.-(Clavir, H. ; 622, Huron Street, Toronto, Canada.) Dec. 29, 1930, No. 39075. [Classes 3 (ii) and 27.] Articles cut from strips.- Relates to dummy-rifle shooting-practice apparatus of the kind described in Specification 337,474, wherein a series of targets on a transparent strip are successively projected optically on to a screen in front of the rifle, the strip being punctured by a needle, on " firing," thereby giving a visual indication of the aim on the projected image. According to the invention, the targets are spaced apart on the strip, which is fed intermittently to position a target or a blank into the projecting position by a feeding device. The latter is actuated by two manually operated means, one of which serves also to cause a knife to sever a used target from the strip. According to one construction, the target strip 20, Fig. 1, is carried within a casing 21 and is led over a tensioning device 21a, through a channel 22, shown in enlarged section, Fig. 5, over a feed roller 25 and through a channel 23, the lead end of the film being disposed in front of an opening 27 through which its image is projected by a lamp 11 on to a screen disposed in front of the rifle 10. Projections on the roller 25 engage perforations in the strip, the latter being held against the roller by a spring-actuated follower 25a. The feed roller 25 is rotated bv a cam shaft 28 through gearing 29, 30, 32, 33, Figs. 2 and 4, the gearing 32, 33 being of the interrupted type. The gearing is such that one-half revolution of the cam shaft will rotate the roller through 90‹. On the shaft 28 is journalled a pinion 48 having a shoulder 49, Figs. 2 and 6, which is adapted to engage with a pawl 50 secured to the shaft. The shaft can be rotated in one direction only by the pawl. The pinion 48 is rotated by a spring-controlled segmental gear 54 which in turn is actuated either by a spring-controlled pull-rod 55 or by a coinfreed slide 64. The movement of the pull-rod is limited by a stop 60 and is such that it rotates the pinion 48 through a half revolution while a complete revolution is imparted by the slide 64. The operation is as follows. Before inserting a coin, the shoulder 49, pawl 50, and the gearing 32, 33 are in the positions shown and a blank is positioned adjacent the aperture 27. On moving the slide 64, which coacts with a lever 52 carrying the segmental gear 54, the pinion is rotated through a complete revolution. As the pawl 50 is 180‹ in advance of the shoulder 49, the shaft 28 is rotated through 180‹ and when the slide 64 is released the shoulder snaps into engagement with the pawl. A target is now in the position for projection on to the screen. After " firing," which causes the target to be punctured, the pull-rod 55 is actuated, its movement being transmitted by a collar 56, bell-crank 57 and link 58 to the gear 54 to rotate the pinion 48, and thereby the shaft 28, through 180‹. In this movement, the next blank is brought opposite the aperture 27 and the previous blank and target are severed from the strip by a knife 46. The knife is carried by or secured to an arm 44 pivoted on a pin 45. An extension of this arm engages in a cam groove 43 of a collar mounted on the. shaft 28, the groove being so shaped that the knife is moved to cut the strip after the latter is brought to rest. Should the pull-rod 55 not be actuated after firing the movement of the slide 64, when the next coin is inserted, will move the target and succeeding blank past the aperture 27, position a fresh target for use, and sever the used target from the strip. Advertisements may be displayed on the " blanks," and may be projected on the screen.