US86645A - Improvement in forcing-pumps - Google Patents

Description

NICHOLAS ,CL-UTE, OF scHENEcT-ADY, lNew YORK.

' Leners Poem No. 86,645, amd Fama/ry 53,1869.

IMPROVEMENT IN FORCING-PMPS.

2h Schedule referred to in these Letters Patentaand making part of the same.

To all whom 'it m/y concern.-

Be it known that I, NICHOLAS OLUTE, of Schenectady, Schenectady county, State of New York, have in- 'appertaina to make and use my said invention or improvements without further invention or experiment.

The nature of` my invention and improvements consists in constructing and arranging the several'parts of a double-acting forcing-pump in such a manner as to make it compact in form, cheap th make, and highly eflicient in operation, said construction and arrangement being particularly set forth in the following description.

I n this specification l shall refer to the accompanying drawings, forming part of the same- Figure 1 being an elevatiop of one of my improved Pumps; Figure 2, a sectional elevation of the upper portion of the pump, at the line az ou lig.-1;

Figure 3, a sectional elevation of the lower portion cut vat right angles to the above section; and

' Figure 4, a horizontal section of one of the pistons. The'bottom ofthe pump consists of a block, X, supporting and forming part of the pyramidal box A, perforated to receive the water, and surmounted by a valvechest, LB, which is dividedinto two separate parts, and provided with the valves C and C'.

Upon this chest is secured, with suitable packing between, the pump-stock, consisting ofthe two conduits D and D', to correspond with ythe two divisions of the chest B.r

Two opposite sides of this stock aremade cylindrical, hollowing inward to receive the two pump-cylinders, E

i and E', which are secured to it, and may form a part ot' the cylindrical sides.

lThe cylinders and stock together are surmounted by the valve-chest E, provided with the two valves, G and G', opening respectively from the cylinders E 'and E'.

'lhe top of the chest F is made sufliciently capacious tovform the air-chamber H, the discharge-pipe I 'extending down through this chamber, and opening into the chest.

A pipe or jacket, O, surrounds the pipe I, to support or strengthen it, and to protect it from the cold, l

Thel cylinders E and E' are open at the bottom, and are each provided with a solid piston, P and P', the rods of which extenddownward through the guides J and J', and have on them, between the guide and thecylinder, the cros s-heads, K and K', provided with the rods L and L', to which the moving or operating-power is to be applied.

The pistons, P and P', are provided with a packing, (see fig. 4,) consisting of the divided ring a, pressedV out bythe wedges b b, and acted upon by the springs c c, in the recesses d d; the wedges b b separating the parts of the ling, and having their outer ends curved to conform to the outer surface of the ring, so as to form, themselves, a portion of the wearing-surface. As the wedges are exposed to wear equally with the ring, andare made of a softer metal, or one that. will wear more easily or faster than the ring, they will always keep up a pressure, both against the ring and the cylinders, so as to make a tight packing.

Operation.

The parts of the pump being properly secured together, and the perforated box A immersed in water,. areciprocating rectilinear motion must be given tothe two pistons, by connecting the rods L and L' to the 'opposite ends of a lever with equal arms, and pivoted in the middle, or by other suitable device, so that the rising of one piston may be simultaneous with the de scent of the other, and cioe versa, or the rods L L' may be connected by a cross-head, so as to 'cause the two pistons to rise and fall together.

Then, as each piston rises, the air above it and in the conduit connecting with it, will be compressed, the conduit D opening at the top into the cylinder E, and the conduit D' into the cylinder' E', and the air being prevented from escaping below by thelow'er valves, consequently a portion oi' it will escape, by its increased elastic i'orce, through the valve aboveandvon the descent of the piston, the space occupiedl by the remaining air being increased, its elastic force will be lessened, and the pressure of the air on the water outside, will cause a portion of it to rise through 'the lower valve to restore the equilibrium. This operation beingcontinuouslyrepeated, the water will soon rise so as to How into the cistern from the couduit, on the descent of the piston, and be forced up through the upper valve, on its ascent, the pressure of the air withoutgcausing the water to rise and lfill the, cylinder above the piston, as. often asgit descends and forms a vacuum, or a partial vacuum, behind it.

1. I claim the combination, with the open cylinders E and E', of the conduits D andD, the valves C and C', and perforated box A, for supplying water to the same, substantially as described. 1

2. I claim a piston-packing, consisting of a divided ring, a, pressed out by a wedge or wedges, b, of soft metal, acted 'upon by springs, said wedges filling the space lbetween the separated parts of the ring, so as to form a. portion of the exterior or wearing-surface of i the packing, substantially as described.

NICHOLAS OLTUTE,4

' Witnesses: Lnwrs E. STANTON, 11R. SNATH.

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