Majority — Woods J.
Syllabus
APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE WESTERN DISTRICT OF PENNSYLVANIA.delivered the opinion of the court. He stated the facts in the foregoing language, and continued:
We are of opinion that the patent is open to the fatal objection that the device covered thereby did not, in vieiv of the ■ state of the art, involve the exercise of invention, and Avas therefore not patentable.
The simply working of a capstan by means of steam is not claimed, but, in the amended specification filed February 7, 1856, is expressly disclaimed. The capstan and the auxiliary
In view of these facts, which are either matters of common khowledge or well established by the evidence, the only field of invention left for the patent to cover was the application, by the old and familiar arrangement of shafts and cog wheels, of the power of an auxiliary engine to a capstan instead of a windlass. A capstan differs from a windlass in this respect only, that its barrel or shaft is vertical, while that of the windlass is usually horizontal. It is plain, therefore, that no such ingenuity as merited the issue of a patent was required for- this improvement, but only the ordinary judgment and skill of a trained mechanic.
The following cases illustrate the grounds upon which we base this conclusion:
It was said by Mr. Justice Bradley, in delivering the judgment of this court in Atlantic Works v. Brady, 107 U. S. 192 : “ The process of development in manufactures creates a constant demand for new appliances which the skill of ordinary head workmen and engineers is generally adequate to devise, and which, indeed, are the natural and proper outgrowth of such development.1 Each step forward .prepares the way for the next, and each is usually taken by spontaneous trials and attempts in a hundred different directions. To grant to a single party a monopoly of every slight advance made, except where the exercise of invention somewhat above ordinary mechanical or engineering skill is distinctly shown, is unjust in principle and injurious in its consequences.”
In Pennsylvania Railroad v. Locomotive Truck Co., 110 U. S. 490 , Mr. Justice Gray, speaking for the court, declared
In Hailes v. Van Wormer, 20 Wall. 353 , where the patentee had taken a fire-pot from one stove, a flue from another, and a coal reservoir from the third, and had put them into a new stove, where each fulfilled the office it had fulfilled in its old situation, and nothing more, the patent was held void for want of invention.
In the case of Phillips v. Detroit, 111 U. S. 604 , the patent' sued on was for an improvement in street and other highway pavements. The improvement consisted in using round blocks of wood, formed of the sections of small trees, set vertically upon a foundation of -sand or gravel, and filling the spaces between the blocks with sand or gravel. The court said that the use of blocks, such as were described, set vertically, was old, that the foundation was old,-and the use of filling between the blocks was old, and that the' only thing left for the patent tp cover was the bringing together, in the construction of a pavement, of these three old and well-known elements; and held that, this did not require invention, and that the patent was void. See also Hotchkiss v. Greenwood, 11 How. 248 ; Phillips v. Page, 24 How. 164 ; Smith v. Nichols, 21 Wall. 112 ; Dunbar v. Myers, 94 U. S. 187 ; Heald v. Rice, 104 U. S. 737 , 754-756.
Hpon the ground stated, we think the letters patent upon which this suit is based are void. The decree of .the Circuit Court, by which tbe patent was sustained, must therefore be reversed, and
The cause remanded with directions to dismiss the bill; and it is so ordered.
Cases cited
- Atlantic Works v. Brady 107 U. S. 192 p. 248
- Pennsylvania Railroad v. Locomotive Engine Safety Truck Co. 110 U. S. 490 p. 248
- Hailes v. Van Wormer 20 Wall. 353 p. 249
- Phillips v. Detroit 111 U. S. 604 p. 249
- Hotchkiss v. Greenwood 11 How. 248 p. 249
- Phillips v. Page 24 How. 164 p. 249
- Smith v. Nichols 21 Wall. 112 p. 249
- Dunbar v. Myers 94 U. S. 187 p. 249
- Heald v. Rice 104 U. S. 737 p. 249