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  1. Erweiterte Patentsuche
VeröffentlichungsnummerUS149628 A
Veröffentlichungsdatum14. Apr. 1874
Eingetragen19. Apr. 1873
VeröffentlichungsnummerUS 149628 A, US 149628A, US-A-149628, US149628 A, US149628A
ErfinderMichael Allen
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links: USPTO, USPTO-Zuordnung, Espacenet
Improvement in hydrants
US 149628 A
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Patentd April 14 lnventur:






Specification forming part of Letters Patent No. 1119,62, dated April 14, 1874; application filed April 19, 1873.

To all rwhom it may concern:

Be it known that I, MICHAEL ALLEN, of Schenectady.l in the county of Schenectady and State of New York, have invented a new and Improved Hydrant, of which the following is a specification:

The invention will rst be fully described, and then pointed out in the claim.

Figure l is a sectional elevation of my improved hydrant. Fig. 2 is a sectional elevation of the lower portion on a larger scale. Fig. 3 is a horizontal section on the line xx of Fig. 2, and Fig. 4 is a horizontal section on the line e z.

Similar letters of reference indicate corresponding parts.

A represents a short vertical tube projecting from` the upper side of the branch B of the water-main. C is a flange inside ot' this tube at its base, whereon the large central tube D, for conducting the water to the top of the hy! drant, is seated, with a ring or gasket of elastic packing, E, to Vmake a water-tight joint. The tubel is pressed down firmly on this seat 'by the rods F, connected with tube A by the space inside from being iilled with earth, also to hold the tube in place. M is the valve, whichcloses against a seat in the lower end of tube D. It has two bars, N, extending a short distance upward from the upper side in the guideways O, and joining onto the crosshead I?, through which the screw Q works to open and closethe valve, said screw being itted in a bridge-tree, It, for a bearing, with a collar, S, above and below to prevent end m0i tion, and at the upper end it connects by a square head with the rod '.I, having a socket in which the head is tted, as shown, and eX tending up through the cap J at the top, where a free passage for the water remaining in tube D, after the valve is shut, to escape; but when the valve is open the hole Y passes below passage X, and cuts oft the escape, so that there is no unnecessary waste when the valve is open, as in some other hydrants.

To pack the joint so as to prevent leakage between the bar N and the bottoni of the groove in which it works, I'have a thimble,'a, in the passage X, an elastic ring, b, and an adjusting-nut, d, by which the inner end of the thiinble is pressed water-tight on the bar.

Having thns described my invention, I claim as new and desire to secure by Letters Patent- The waste-passages, arranged as described, in combination with the thimble a, elastic ring b, and adjusting-nut d, for the purpose set forth.




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US3219054 *26. Juni 196223. Nov. 1965Oberhelman Ritter Foundry CoFire hydrant with releasable actuating shaft
US4177826 *26. Jan. 197711. Dez. 1979Mueller Co.Fire hydrant with improved shoe and valve
US4227544 *23. Jan. 197914. Okt. 1980Mueller Co.Fire hydrant with improved shoe and valve
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