The three main devices (symbols) in the Langtree blazon are the chevron, canton and saker. The two main tinctures (colors) are sable and argent.
Sable, the deep black so often found in Heraldry is believed to named from an animal of the marten family know in the middle ages as a Sabellinœ and noted for its very black fur 1A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Sable. In engravings, when colors cannot be shown it is represented as closely spaced horizontal and vertical lines, and appropriately is thus the darkest form of hatching, as this method is known 2Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 26. Although it may seem a sombre tone, and does indeed sometimes denote grief, it is more commonly said to represent Constancy 3The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P35.
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In a sketch or drawing it is represented by plain, unmarked paper 5A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P11.
The chevron is one the major shapes used upon a shield, known as ordinaries. The inverted ‘V’ of the chevron is perhaps thought to have originated to represent a military scarf folded on the shield 6A Display of Heraldry, J. Guillim, Blome, London, 1679, (various), or additional cross-pieces used to strengthen the shield and painted a different colour.7The Pursuivant of Arms, J. R. Planche, Hardwicke, London 1859. It has also acquired the meaning of “Protection… granted… to one who has achieved some notable enterprise” 8The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P45, possibly becuase of its resemblance to the roof truss of a house.
“The canton stands very high among honourable bearings”, according to Wade, a noted symbologist 9The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P48. The canton is a square shape, normally occupying the dexter chief of the shield. An early example is SUTTON, Bishop of Lincoln in the 13th century, who bore “argent a canton sable”. It occupies less space than a quarter and hence is sometimes added to an existing shield to difference branches of the same family, or, when a charge is added to it, to indicate some honour has been recieved 10A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Canton. Wade remarks, that, in common with all square features can be associated with the virtue of“constancy”.
The Saker is known to refer to some species of falcon, but its precise form is no longer known. 11A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Saker In common with other creatures of the hunt it may represent an affection for that pastime.