The present invention provides support frames for positive pressure blowers having one or more wheels mounted at a lower corner of the frame, wherein the wheels are mounted to roll in a direction that is perpendicular to the flow of air through the blower. This sideways orientation of the wheels allows a frame carrying a blower to be easily moved from side to side, such as when placed into or removed from a side compartment on an emergency vehicle, and allows such a frame carrying a blower to be easily tilted, turned and rolled around at the scene of a fire in much the same manner as a wheelbarrow. Embodiments of the invention may include an upper handle or grip which allows a user to control the frames by tilting and rolling them around on the wheels. Embodiments of the invention may include a support bracket for holding a battery or other power supply.

The invention provides a heat pump system comprising a base support; a top support and one or more elongated support structures connected to the base support and the top support. A hydraulic system configured to provide a compression stress to at least one SMA or NTE or elastocaloric core during use. An inlet for receiving fluid and an outlet for exiting the fluid; and at least one valve configured to control the inlet and the outlet. The elongated support is configured to engage with the SMA core to prevent the SMA material buckling when a compression stress is applied.

The invention provides a heat pump system comprising a base support; a top support and one or more elongated support structures connected to the base support and the top support. A hydraulic system configured to provide a compression stress to at least one SMA or NTE or elastocaloric core during use. An inlet for receiving fluid and an outlet for exiting the fluid; and at least one valve configured to control the inlet and the outlet. The elongated support is configured to engage with the SMA core to prevent the SMA material buckling when a compression stress is applied.

The present invention provides support frames for positive pressure blowers having one or more wheels mounted at a lower corner of the frame, wherein the wheels are mounted to roll in a direction that is perpendicular to the flow of air through the blower. This sideways orientation of the wheels allows a frame carrying a blower to be easily moved from side to side, such as when placed into or removed from a side compartment on an emergency vehicle, and allows such a frame carrying a blower to be easily tilted, turned and rolled around at the scene of a fire in much the same manner as a wheelbarrow. Embodiments of the invention may include an upper handle or grip which allows a user to control the frames by tilting and rolling them around on the wheels. Embodiments of the invention may include a support bracket for holding a battery or other power supply.

The present invention provides support frames for positive pressure blowers having one or more wheels mounted at a lower corner of the frame, wherein the wheels are mounted to roll in a direction that is perpendicular to the flow of air through the blower. This sideways orientation of the wheels allows a frame carrying a blower to be easily moved from side to side, such as when placed into or removed from a side compartment on an emergency vehicle, and allows such a frame carrying a blower to be easily tilted, turned and rolled around at the scene of a fire in much the same manner as a wheelbarrow. Embodiments of the invention may include an upper handle or grip which allows a user to control the frames by tilting and rolling them around on the wheels. Embodiments of the invention may include a support bracket for holding a battery or other power supply.

An aircraft engine stand for supporting an aircraft engine, has: a support; a mount rotatably mounted to the support, the mount extending around a central axis from a first end to a second end, the mount surrounding an engine-receiving space having an opening between the first end and the second end, the opening sized for allowing the aircraft engine to be positioned into and removed from the engine-receiving space, the mount rotatable relative to the support about the central axis and about a transverse axis intersecting the central axis; and an adaptor extending radially inwardly into the engine-receiving space relative to the central axis from a mounting interface removably secured to the mount to an engine interface removably securable to the aircraft engine.

An aircraft engine stand for supporting an aircraft engine, has: a support; a mount rotatably mounted to the support, the mount extending around a central axis from a first end to a second end, the mount surrounding an engine-receiving space having an opening between the first end and the second end, the opening sized for allowing the aircraft engine to be positioned into and removed from the engine-receiving space, the mount rotatable relative to the support about the central axis and about a transverse axis intersecting the central axis; and an adaptor extending radially inwardly into the engine-receiving space relative to the central axis from a mounting interface removably secured to the mount to an engine interface removably securable to the aircraft engine.