Samuel Blatchford

Name: Thompson v. Boisselier — Opinion of the Court
Author: Samuel Blatchford

Thompson v. Boisselier — Opinion of the Court

Summary

“Thompson v. Boisselier — Opinion of the Court”, is a work by Samuel Blatchford. It explores elements such as valve, plunger and leather.

Quotes from Thompson v. Boisselier — Opinion of the Court (Samuel Blatchford)

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ The cup-leather does not control such motion. The only action of the cup-leather is the same which it had in the old pump-plunger: to hold up a column of water and act as a packing to prevent the return passage of the water. In this condition of things it would seem that the only point of invention, if it could be dignified by that name, was the special means of leakage shown by Carr, of having a screw through the cap, with part of the screw filed away; and which is not used by the defendants, who use the same means of leakage as Hulme did. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ When it is desired to open the valve, force is applied to depress the valve-stem; this force compresses the spring, depresses the plunger, and opens the valve quickly, owing to the fact that the water can escape rapidly from the variable chamber, such rapid escape being due to the operation of the cup-leather, which now ceases to hug the plunger and acts as a valve, permitting the water to escape freely from the variable chamber. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ When the cylinder is filled with water, the valve is held to its seat by a spiral spring. When the valve-stem is depressed, the valve opens rapidly, because the cup-leather permits the water to pass freely outside of it. When the force which depressed the alve-stem is removed, the spring acts to shut the valve, but it shuts slowly, because the cup-leather acts as a tight packing, being forced outward against the inner wall of the cylinder by the pressure of the water. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ So, it is not enough that a thing shall be new, in the sense that in the shape or form in which it is produced it shall not have been before known, and that it shall be useful, but it must, under the constitution and the statute, amount to an invention or discovery. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ The specification of the Bartholomew patent says: 'The nature of my invention consists in providing for water-closets a cistern, or drip, or leak-chamber, arranged upon the top of, or over the trunk of a closet, and placing a supply-cock within or above said drip-box or cistern, so that any waste, or leak, or drip from the cock shall be conducted into the trunk, so as to insure the keeping of the floor dry. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ Hamilton, 104 U.S. 485, where, a cupola-furnace being old, and a cinder-notch being old, and the use of a cinder-notch to draw off cinders from a blast-furnace being old, and the cinder-notch, in drawing off the cinder from a cupola-furnace, performing the same function as in the blast-furnace, it was held that the application of the cinder-notch to the cupola-furnace would occur to any practical man, and that there was nothing patentable in such application. ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ It will now be seen, that, if the stem, h, be pressed down by the weight of the person acting on the seat, u, rod, v, and lever, p, or by any other suitable means, the valve, g, will be forced away from the washer, 2, and allow a dash of water to pass through the notch, x, sufficient to fill up the parts of the cock, and then that the cylinder, 3, descending and filling the opening in the washer, 2, will prevent, or nearly so, the passage of any more water into the closet ”

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Source: Wikisource

Samuel Blatchford, Thompson v. Boisselier — Opinion of the Court

“ At the time the valve, g, is pressed down, as before stated, the water dashes momentarily on to the cock and fills the same, passing the cup-leather, m, and filling the cylinder, k, and, upon the pressure on the stem, h, being removed, the cup-leather expands by the slight rise of the stem, and would retain the valve, g, open were the cylinder, k, water-tight, and, therefore, the closing of said valve will be regulated according to the extent of leakage provided in said chamber, k, and for this purpose the leakage at the washer, 4, around the stem, h, may in some cases be sufficient ”

Samuel Blatchford

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