An extension tool extends a device. The extension tool includes a first pole slidably receiving a second pole. A collar is secured to the first pole having a pin aperture. A platform is pivotably coupled to the collar. A pin is coupled to the platform. A retainer is coupled to the collar and engages with the platform for maintaining the platform in the closed position and disengaging with the platform for positioning the platform in the open position. The closed position positions the pin in one of the plurality of apertures for fixing the position of the second pole relative to the first pole. The open position disengages the pin from one of the plurality of apertures of the second pole for permitting displacement of the second pole relative to the first pole.

An extension tool extends a device. The extension tool includes a first pole slidably receiving a second pole. A collar is secured to the first pole having a pin aperture. A platform is pivotably coupled to the collar. A pin is coupled to the platform. A retainer is coupled to the collar and engages with the platform for maintaining the platform in the closed position and disengaging with the platform for positioning the platform in the open position. The closed position positions the pin in one of the plurality of apertures for fixing the position of the second pole relative to the first pole. The open position disengages the pin from one of the plurality of apertures of the second pole for permitting displacement of the second pole relative to the first pole.

A braking system for slideway guided amusement vehicles providing both manual and automatic braking for the slideway guided amusement vehicles is provided. The braking system includes at least one brake handle, a first shaft fixed to the at least one brake handle, a first gear concentrically positioned on and free to spin independently of the first shaft, an actuator fixed to the first shaft for providing a linear motion to a stop pin, an inlet opening on the first gear for receiving the stop pin, a second gear coupled to the first gear, concentrically fixed on a second shaft for mounting spinnably and extending horizontally to a chassis of a vehicle, at least one friction member attached to the second shaft, a tensioning means, and a control unit adapted to remove the stop pin from the inlet opening via the actuator.

A braking system for slideway guided amusement vehicles providing both manual and automatic braking for the slideway guided amusement vehicles is provided. The braking system includes at least one brake handle, a first shaft fixed to the at least one brake handle, a first gear concentrically positioned on and free to spin independently of the first shaft, an actuator fixed to the first shaft for providing a linear motion to a stop pin, an inlet opening on the first gear for receiving the stop pin, a second gear coupled to the first gear, concentrically fixed on a second shaft for mounting spinnably and extending horizontally to a chassis of a vehicle, at least one friction member attached to the second shaft, a tensioning means, and a control unit adapted to remove the stop pin from the inlet opening via the actuator.

A railroad tank car may have external fittings, such as brake fittings. A low mount brake fitting is located in a recess formed in the end sill of the car or in the side sill of the car between the main bolster and the end sill. Where an end sill installation is used, the end sill may be asymmetric, with the recess being formed to one side of the center sill. Alternatively, the end sill may be offset longitudinally away from the striker, and a spacer inserted.

A railroad tank car may have external fittings, such as brake fittings. A low mount brake fitting is located in a recess formed in the end sill of the car or in the side sill of the car between the main bolster and the end sill. Where an end sill installation is used, the end sill may be asymmetric, with the recess being formed to one side of the center sill. Alternatively, the end sill may be offset longitudinally away from the striker, and a spacer inserted.

A system includes a carriage configured to move along a rail. The system also includes a clamping brake configured to selectively allow and prevent movement of the carriage along the rail. The clamping brake includes multiple brake pads configured to be moved inward to lock onto the rail and to be moved outward to release the rail. The clamping brake also includes multiple springs configured to apply spring forces that cause the brake pads to move inward and lock onto the rail. The clamping brake further includes a camshaft coupled to or including multiple eccentrics. The eccentrics are configured to overcome the spring forces and cause the brake pads to move outward and release the rail.

A system includes a carriage configured to move along a rail. The system also includes a clamping brake configured to selectively allow and prevent movement of the carriage along the rail. The clamping brake includes multiple brake pads configured to be moved inward to lock onto the rail and to be moved outward to release the rail. The clamping brake also includes multiple springs configured to apply spring forces that cause the brake pads to move inward and lock onto the rail. The clamping brake further includes a camshaft coupled to or including multiple eccentrics. The eccentrics are configured to overcome the spring forces and cause the brake pads to move outward and release the rail.

A railroad brake stick can include: a head having a planar shape with a recesses and/or protrusions on one or more side surfaces of the planar shape, the planar shape having a head interlocking groove on a hilt region; a cross-support having a planar shape with a support interlocking groove interlocked with the head interlocking groove such that the planar shape of the head crosses with the planar shape of the cross-support to form an interlocking region; and a handle coupled to the head and cross-support such that the interlocking region is within an end of the handle. In some aspects, a cover is over the handle. n some aspects, the head is a composite material and the cross-support is a composite material and the handle is a composite material.

A railroad brake stick can include: a head having a planar shape with a recesses and/or protrusions on one or more side surfaces of the planar shape, the planar shape having a head interlocking groove on a hilt region; a cross-support having a planar shape with a support interlocking groove interlocked with the head interlocking groove such that the planar shape of the head crosses with the planar shape of the cross-support to form an interlocking region; and a handle coupled to the head and cross-support such that the interlocking region is within an end of the handle. In some aspects, a cover is over the handle. n some aspects, the head is a composite material and the cross-support is a composite material and the handle is a composite material.