Your pdf file is missing the right-hand edsg, but I'll hazard an educated guess:
"per pale" means there are 2 divisions, divided by a vertical line (so side-by-side).
The First (on the left) is "O" or Or otherwise Gold for the field, and has a Bend (a diagonal stripe running from top left to bottom right) of "B" = blue, on which are 2 cinquefoils of the 1st (colour).
This is impaling (a term meaning side-by-side) a 2nd arms:
A red field on which is a Chevron Ermine (black on white pattern, representing ermine fur), dividing 3 pears (Or = gold).
The crest is a Talbot (a type of hunting dog) (not visible on your colour photo?).
Arms were granted to a named individual by the College of Arms, and may be used by male descendants of the armiger.
They do NOT belong to anyone with the same surname!

Impaling arms like this was often done to show the arms of both husband and wife.