. Points du cheval ; un traité sur la conformation, les mouvements, les races et l'évolution du cheval. Les chevaux. 6o D'UN PROJET DE MÉCANISME, le centre de gravité avec leference à la position de la base de soutien, est influencedj tout d'abord, par le degré d'inclinaison que le foie rend la jambe avec le sol immédiatement avant qu'il quitte, et avant que l'autre patte antérieure est présenté ; et, deuxièmement, par l'loweiing de la tête et du cou. Il va sans dire que les chevaux avec toe-pièces à leur avant chaussures peuvent, tout en conservant le pied, le giavity biing centie faither de au-delà de la base de soutien, par le

• Contributeur: Central Historic Books / Alamy Banque D'Images
• ID de l’image: PFXBK3
• Taille du fichier: 7,1 MB (383,5 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1871 x 1335 px | 31,7 x 22,6 cm | 12,5 x 8,9 inches | 150dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

. Points of the horse; a treatise on the conformation, movements, breeds and evolution of the horse. Horses. 6o MECHANISM OF DRAUGHT, the centre of gravity with leference to the position of the base of support, is influencedj first, by the degree of slope which the foie leg makes with the ground immediately before it quits it, and before the other fore leg is brought down; and, second, by the loweiing of the head and neck. I need hardly say that horses with toe-pieces to their fore shoes can, while retaining their foothold, biing the centie of giavity faither beyond the base of support, by the slope of the fore leg which rests on the ground, than they could do with flat shoes; supposing, of couise, that the surface of the ground was not abnormally smooth and hard, like wood or asphalt. From the foregoing considerations we may draw, with respect to cart-horses that are required to exert their strength to the utmost, the following deductions, which are fairly self-evident to practical men. I. Bodily weight, especially in the fore hand, is an advantage m draught;. Fig. 42.—Mechanism of Draught. (From Colm's Physiologk Comparie?^ for the greater it is, the more effective will be the push against the collar caused by the centre of gravity falling beyond the base of support. Agreeably to this fact, the experienced driver of a heavily-laden two-wheeled cart will endeavour to place a fair share of the burden on the animal's back, so that the horse may pull to the best advantage. The experiment of a man succeeding in pulling along a stronger man than himself, by trying to do so, while carrying a heavy weight on his back, is another familiar instance of this principle. The gain in power from increased weight on the fore hand is, also, well illustrated by the practice, which is not very uncommon among drivers of one-horse carts, of the driver mounting his animal and getting well forward on its back, when he finds that it is unable to pull its load up a hill. Please note that

Recherche dans la banque de photos par tags

• bookcentury1800
• bookdecade1890
• bookyear1897
• livresubjecthorses