A projectile stopping device is proposed for the purpose of damping the noise propagation linked to the striking of projectiles, for the purpose of braking the projectiles and for easier recovery thereof, the individual stopping curtains (27 to 29) of which projectile stopping device, which are spaced apart from each other in the firing direction (1), consist of suspended steel cables. The stopping cables (26) are received in receiving devices which are identically formed at the top and bottom, ...

A device which allows a choice of stopping positions for a swinging door mainly comprises a body having a cylindrical well together with a passage hole vertically formed through the body, an operation means includes a plunger normally supported by a spring, a friction body received under the plunger. Said plunger can be plunged repetitively between a suspension position where the friction body is suspended properly above the ground and a stop position where the friction body is pushed in associa...

A stopping device for tape measures, consisting of a lower housing, a locking button, a spring, a tape roller and an upper housing, arranged in such a way that when the locking button is pushed upwards, the lower part of the stopping spring is released from the outer stopping rim of the tape roller which allows the tape to be retracted automatically using the tension of the helical spring of the tape roller, and releasing the locking button allows the tension of the helical spring to return to i...

An apparatus for stopping passenger conveyors, such as escalators and moving walkways having at least one comb plate, responds to movement of the comb plate due to an applied force to actuate a safety switch. The apparatus exerts a static trigger force on the comb plate which trigger force has horizontal and vertical components. The comb plate is movable horizontally and vertically against a static trigger force when the applied force exceeds one or both of the horizontal and vertical components...

A fire stopping apparatus includes a metal casing having two side walls with co-extensive openings and an annular outer wall extending between the side walls outwardly from the openings, forming an inwardly open, annular channel. The casing has mounts for connecting the apparatus to a building structure. There is an intumescent material within the channel. A resilient gasket extends from the casing and has an annular inner wall extending inwardly beyond the intumescent material.

A mine stopping comprising a plurality of panels adapted to extend in side-by-side relation from the floor to the roof of a passageway in a mine. Each panel comprises a first elongate member constituting the lower member of the panel and a second elongate member constituting an upper member of the panel. Each member has a web and flanges at opposite sides of the web, each flange having an inturned portion at its outer edge extending generally parallel to its web. One of the members has a telesco...

A portable chain saw wherein the motor drives a hub which is coaxial with a cylindrical portion of the shaft for one sprocket wheel of the chain. A coil spring is wound around the hub and the cylindrical portion to normally transmit torque from the hub to the shaft and to brake the shaft in response to its disengagement from the hub as a result of pivoting of a guard for one hand of the operator. The guard is pivoted by the one hand when the chain saw wobbles or performs other undesirable moveme...

A micromirror device comprises a plurality of stopping mechanisms that sequentially stop the mirror plate of the micromirror device when the micromirror device is rotating towards a state, such as an ON or OFF state. The mirror plate sequentially separates from the stopping mechanisms when the mirror plate is rotating towards another state, such as the OFF or ON state.

The sailboat control device disclosed herein comprises one actuated by the pulling of a pin positioned therein, whose removal therefrom permits a spring controlled switch to be closed so that the position of the boat rudder is determined by the maneuvering of a wind vane on the boat. A line connected at one end to said pin and at the other end to the sailor on board causes the pin to be pulled or removed from the said device if and when the sailor should fall overboard. Movement of the wind vane...

Device for use in serving popcorn and the like comprising a vertical member secured to the generally concave interior surface of a container. The vertical member has an irregular exterior surface stopping the spilling of popcorn when a hand reaches into the container for popcorn. Preferably the vertical member has six to eight fluted sides and a smaller cross section at its middle than its ends. Alternatively, the vertical member is integrated into the bowl.