SU4334A1 - Device for adjusting the speed of shooting a camera - Google Patents

Description

FIG. 1, 2, 3 and 4 of the schematic drawing shows the proposed device for the seeds with a normal tempo and in FIG. 5 and b-another form of its implementation for the seeds at an arbitrary pace.

To the main axis rt (Fig. 1 and 2) of the apparatus, on which the handle // is worn, is attached a pad b with three flat springs ". The latter are equipped with weights g and attached with their other ends to the movable shoe d articulated with the friction plate Jfc moving along the plate h. The ring d rotates on the balls. From a cross section of the axis, as shown in FIG. 3, it can be seen that the friction plate hp can rotate only together with the axis a.

During normal rotation of the handle, the weights r of the spring are stretched by centrifugal force (Fig. 4) as much as is necessary for the mechanism to obtain a normal speed (the y / c plate touches the s plate at the point describing a circle whose diameter is equal to

plates g). With a slow movement of the handle, the weights r will move to the axis a, the plate hp will move to the center of the plate h, and the mechanism will again have a normal speed. With the accelerated rotation of the handle, the weights will move away from the axis a, and the mechanism will again have a normal speed.

The form of the embodiment according to fig. 5 and b, consists in that the axis 2 is made hollow and inside it is mounted a plate 1, to which is attached a flat, with a curved end, a spring h; A cam 5 is attached to the axis of the shaft, inside, on a hinge, which extends by means of a finger and slides into the axle according to the movement of the wave-shaped notch 4 of the plate 1. When the plate is advanced in the axis in the direction of the arrow in FIG. 5, then the spring and the cam are located inside the axis, and the plate can freely move along it. If it is necessary to remove by slowing the rotation of the handle or accelerated, then the plate 1 should be extended in the direction of the arrow in FIG. 6; then the cam and protrude from the axis; after a few quick turns of the handle, the plate approaches so much that it drops over the spring bend. In this position, the plates can produce seeds at an arbitrary rate.

The subject of the patent.

1. A device for adjusting the speed of the seed of a camera, characterized by primonephem (figs. 1-4) fixed on the axis n of the pad b with three springs with weights g, which springs with their other ends attached to the movable block c connected to the plate oic moving along plate h.

2. The form of the device described in paragraph 1, characterized in that inside the hollow axis 2 (Fig. 5 and 6) there is a plate 1 with a spring 3 and a slit 4 for the stop cam 5.

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