Opinion by
Mr. Justice Potter,That the defendant in this case was negligent in failing to cover certain cogwheels, as required by the statute; that this negligence caused the injury to plaintiff, and that the latter was free from contributory negligence, are *448matters of fact which have all been established by the verdict of the jury. Counsel for appellant make no complaint of the manner in which the case was submitted to the jury, but they contend that the act of defendant in maintaining the open cogwheels, was not the proximate cause of the injury to the plaintiff. It seems that at the time of the accident, the plaintiff was standing upon a small platform at the side of the machine attending to his duties, when another workman accidentally pushed a loaded wheelbarrow against the platform with such force as to cause plaintiff to lose his balance. In the effort to recover, one hand was thrown out, and went into the uncovered cogs, and was crushed. Counsel seek to approximate the facts of this case, and the principle as to liability involved, to those in Elliott v. Light Co., 204 Pa. 568. But their argument is not convincing. In that case it was held that the slipping of a ladder was the originating cause of the plaintiff’s fall, and that the fact that he fell against an electric light wire was a mere incident to that fall. It was shown that the light wire was fastened high upon the side of the house, and was so situated that no injurious consequences were reasonably to have been anticipated from anyone falling against it. And as a person is not expected to anticipate and guard against that which no reasonable man would expect to occur, it might for that reason, equally with that which was emphasized in the opinion, have been held in that case that there was no liability upon the part of the defendant. But it is equally true that a person is properly expected to anticipate and guard against the reasonable consequences of his action. In the present case the open cogwheels were so situated that an accidental slip might bring a workman or an attendant of the machine into dangerous contact with them. The common experience of mankind has shown the danger to be apprehended from unguarded machinery, and especially that from uncovered, revolving cogwheels, and has made clear the duty of protecting from that danger, those whose duties bring them in proximity to such machinery. *449The statute has merely crystallized the demands of ordinary prudence, in requiring that cogs, gearing and other machinery shall be covered. An injury from machinery, open and uncovered, is not liable to occur, without the concurrence of some accident or unexpected event, such as a slip or a miscalculated move. And it is for the very reason that such things may in numberless unexpected ways, plunge a workman into danger, without fault of his own, that prudence requires proper safeguards to be supplied to prevent accidental contact with moving machinery. To hold that a prior slip or an accidental movement which brings an unfortunate workman into contact with uncovered cogwheels, is to be considered as the proximate cause of the resulting injury, would be to practically nullify the provisions of the law made to protect him against such risks. Nor is there any merit in the further suggestion of counsel, that the risk of injury from the uncovered cogs, was assumed by the plaintiff. We have pointed out in Jones v. Caramel Co., 225 Pa. 644, and in Valjago v. Steel Co., 226 Pa. 514, that in Pennsylvania an employer cannot invoke the defense of assumption of risk by the employee, in the face of a statute requiring safeguards to be supplied for dangerous machinery. This is no longer an open question with us.
The assignments of error are overruled, and the judgment is affirmed.