I don't know if this is your man, but if so, perhaps it might help narrow down the area he patrolled:
Cotton Factory Times 30 August 1895
There is an article of news from Oldham on page 5 about a customer at the Featherstall and Junction Inn on Featherstall-road North, who had a vein burst in his leg and was profusely bleeding. The landlady called in Constable Peter Whitehead, who was also a member of the Ambulance Society. The constable adminstered first aid pending the arrival of a Doctor. The doctor later said the man would have died if not for the efforts of the Constable.