Abstract: The subject of the invention is a laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants. The laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants according to the invention comprises a DC electric motor with an encoder, an energy storage module, an igniter power supply system, an electronic pressure measuring system in a combustion chamber and a rocket micromotor. The electric motor is connected to an encoder, at the same time the electric motor is connected to the main shaft by a bellows-free coupling, and an energy storage module is placed on the main shaft. On the opposite side of the rocket micromotor body located on the main shaft by a fastener there is the igniter power supply system mounted on the main shaft containing a power supply system sleeve on which conductive rings and insulating rings are placed, terminated with a closing ring and carbon brushes.

Abstract: There is disclosed a conveyor-belt reeling device comprised of an open box frame having vertical rollers laterally adjustable at one end, and an axle or mandrel comprised of collapsible members, each end of which is positioned within suitable recesses provided in circular discs wherein one end of the axle extends through the frame for connection to a drive mounted externally to the frame and wherein the other end of the axle is positioned within a pivotally mounted opposite frame member and wherein a cradle including rollers is provided which extends across the width of the frame capable of raised or lowered by means of an integral lifting apparatus.