SP
Because the House is in Committee. When the House is at a Committee Stage of a bill, the mace is place on a rack under the table, rather than on top, and the Speaker of whichever deputy is in place at the time sits next to the people who assist them.
The other difference is that MPs will usually address the Chair by name (eg "Sir Lindsay" or before his knighthood, "Mr Hoyle") rather than "Mr/Madam Deputy Speaker" in committee.
I think that technically any member of the Panel of Chairs can chair a Committee of the Whole House, but it would always be a Deputy Speaker at the end of the Session for the formal adjournment.
Why does he not sit in the speakers chair when he’s standing in, I’m sure I’ve seen him, and the other deputy speakers sat in the chair?
Because the House is in Committee. When the House is at a Committee Stage of a bill, the mace is place on a rack under the table, rather than on top, and the Speaker of whichever deputy is in place at the time sits next to the people who assist them.
The other difference is that MPs will usually address the Chair by name (eg "Sir Lindsay" or before his knighthood, "Mr Hoyle") rather than "Mr/Madam Deputy Speaker" in committee.
I think that technically any member of the Panel of Chairs can chair a Committee of the Whole House, but it would always be a Deputy Speaker at the end of the Session for the formal adjournment.