Patent ID: 7500365

Claim:
An accessory gearbox for use in a gas turbine engine comprising: a stationary frame, said frame circumferentially disposed about a central longitudinal axis of the engine and including a forward-directed axial face, a rearward-directed axial face, a central bore, an outermost rim, an inner hub extending radially outward from the bore, an inner diameter annular duct extending radially outward from the hub, a compartment extending radially outward from the inner diameter annular duct, an outer diameter annular duct extending radially outward from the compartment to the outermost rim; a rotational driving means disposed about the axis, said driving means extending into the central bore; a rotational tower shaft, said tower shaft including a first end for engaging the driving means and a second end disposed in the compartment; and at least one primary accessory mounted to a face and proximate the compartment, said at least one primary accessory extending into the compartment and engaging the tower shaft second end and able to be driven concurrently therewith.