Multi-position adjustable support assembly suspended from an elevated horizontal edge for securing such as a book, smartphone or tablet style computer

An assembly for supporting a device from a structural location exhibiting an upper horizontal edge, said assembly comprising:

• a main support body having front and rear faces, a bottom support ledge projecting from said front face and adapted to receive a bottom extending edge of the device, at least one top support ledge extending from said rear face and adapted to engage the upper horizontal edge;
• a height adjustable component secured to said main support body and exhibiting a further ledge support location adapted to engage a top extending edge of the device;
• said height adjustable component further including a three sided construction with a pair of ribbed and parallel extending elongated legs interconnected by an inter-extending top having an edge engaging location defined by an extending ledge terminating in a downwardly angled lip;
• pluralities of spaced apart ribs associated with each of said extending legs and which are configured to abut in a biasing fashion inside closed perimeter edges configured in spaced apart upper end locations of said main support body, these located proximate to said front face and extending through said top ledges and defining apertures through which said legs are resistively and ratchet-adjustably mounted;
• and
• an angularly adjustable arm supporting component secured to a lower rear face location of the main support body and adjustable to establish a desired angle or tilt of the main support body and supported device.