USRE6964E - ad air - Google Patents

Description

a Sheetv -Sheet 1.

W. ADAIR.

PUMP.

Reis sued Feb. 29, 1876.

WITNESSES V s Sheets-Sheet z.

W. ADA'IR.

PUMP.

Reissued Feb. 29, 1876.

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3sheets Sheet3. W. ADAIR.

PUMP. No 6 964 Reissued Feb. 29, 1876.

mhzessas," 1720672 for: 175%M NZPETERS. Pww-LITHOGRAPMER, WASHINGTON, D. G.

WILLIAM- ADAIR, or LIVERPOOL, ENGLAND' IMPR'OV ETM ENT" N P-U M PS:

Specification forming, part ofdhette'rs Patent No'.-'78,854, dated" J une= 16, 1868 an-tcdated: April=5;1867; reissue- No. 6,028, dated August 25', 1874 reissue No. 6,;964,dated February 29, 1876; application filed-February To all whom it mu y jc0ncern:

Be it known that I, WILLIAM Anne, of LiverpoohlEngland, have invented-certain new and useful improvements in Pumps; and

I (lo-hereby declare that the following is a full, clear, and exact descriptionthereof, reference beinghad to the accompanying drawing form'- inga part of this specification.

My invention consists in. improvements in double-aetin g pumps: First', in combininggtlie piston-cylinder and the chamber that contains the valves by which the water is supplied to and discharged fromthe lower sideof the piston with an open waterhead,sothat-"the said valves and the piston, or either of them, may be readily withdrawn from the pump through said water-head; second, in combining the piston-cylinder, the said valve-chamber and its valves, and the said water-head, with a cylinder cover, such cylinder-cover being removable from the cylinder through the open water-head; third, in combining with the valvechamber containing'valves by which the water is supplied to and discharged from the lower side of the piston-cylinder, and an open waterhead, a piston-cylinder provided with a cylin-' der-cover acting as a discharge-valve into such open water-head from the upper side of the piston-cylinder on the upper stroke of the pis ton fourth, in an improved combination and arrangement of the said valve-chamber, the piston-cylinder, and water-head, by reason of which the pump may be conveniently cast in one piece; fifth, in so combining and arranging the parts that both sets of valves in the pump can be reached with facility in order to be cleaned or freed from obstructionsthat is, the valves by which the water is supplied to and discharged 'from the piston-cylinder on the up and down strokes of the piston.

In the drawing which serves to illustratemy improvements, Figure 1 is a perspective View of the pump containing them. Fig. 2 is a vertical central section of said pump; and Fig. 3 is a horizontal section of the same taken through the line yy of Fig. 2.

In such pump, A is the piston-cylinder containing the piston and piston-rod. This cylinder also ts as one of the discharging-chambers of the pump on the upstroke of the piston.

Bis theother discharging-chamber. O is the feed or suction pipe; Dis'the'branch of the feed-pipe at thebottom 'ofi'thechamberB. E is the branch from thefsameto' the top'of-the cylinder 'A, and' is" the port olf communicati'oubetween the'cylinder Aand chamber BL In'this pump there are three ordinary valves,

No.1 openingfromthe feed-pipe up and'into the bottom of the chamber B. No. 2is placed in' and across the chamber B", a short distance above-No. 1. This valve-chamber, made sufiiciently large to admit of the withdrawal through it ofthe valves Nos. 1 and-2 ,"opens u ward, allow'iug= the water to passolft-hrough a water-head or'chamber", G. Thiswaterhead is open all across its top, and is also made sutficiently large to admit of the withdrawal through it of the valves Nos. 1 and 2, the piston-rod, and the cylinder-cover.

piston cylinder, and open water-head, passage is left to the valves Nos. 1 and 2, and to the piston, to readily withdraw them or the cylinder-cover, or either of them, from the pumpcasing, ifit is necessary to do so for the removal of obstructions, or for the purpose of repairs, &c. The third valve is situated in and across the upper branch of the feed-pipe, and just before its entry into the cylinder A.

The box of this valve is marked No. 3. All

of these valves are reached with facility and ease in case it is nec'essary to remove obstructions therefrom or to clean them.

In addition to these valves there is the port F at the lower portions of and connecting the cylinder A and chamber B, but closed to the feed-pipe, and situated between valves Nos. 1 and 2. During the upper stroke the piston raises the water which is above it in the cylinder A, and previously admitted through the valve No. 3, but now closed, slightly elevating the cover H, which, on the upward stroke of the piston, constitutes a fourth valve,discharges such water into the water-head or chamber G; from thence the water passes out through the nozzle I. At the same time the \vaterin the feed-pipeG opens valve No. 1, valve No. 2 remaining closed, and pours through the port or passage F into the cylinder A under the piston, to be ready for the downward By reason of such arrangement of the said valve-chamber,

stroke. During the downward stroke the piston forces the water now collected below it thron gh the passage F, closing valve No. 1 and opening valve No.2, up through the cylinder B, and discharging it directly into the open water-head or chamber G, and from thence it passes out through the nozzle I. Duringthe downward passage of .the piston the water in the feed-pipe 0,,valve No. 1 being closed, is'

drawn up through the branches 1) and E,rais.-

in'g valve No. 3, and filling the space above the piston, and between it and the cylindercover H, to be ready to be discharged intothe water-head or chamber G, and thence out through the nozzle 1, in manner as before stated, on the upstroke of the piston.

- The arrangement of the chamber containing the valves Nos. 1 and 2 of the pump, the piston-cylinder, and the open water-head in this and the-.valve-chamber that contains the valves .by which the wateris supplied to and discharged from the lower side of the piston with an open water-head, so that said valves and the piston, or either of them, may be readily withdrawn, substantially as'described.

2. The combination of the piston-cylinder, the valve-chamber and its valves,'by which the wateris supplied to and discharged from thelower side of the piston, the water-head and a cylinder-cover, which is removable from the pump through the open water-head, sub-- stantially as described.

3. The combination of the valve-chamber and its valves, by which the water is supplied to and discharged from the lower side of the piston, with the open water-head, and piston-cylinder, provided with a cover, acting as a discharge-valve, substantially as described 4. The combination of the valve-chamber. piston-cylinder, and open waterhead, sub, stantially as described.

5. The combination of an open water-head and piston-cylinder with the valves, by which strokes of the piston, substantially as described. v

WM. ADAIR.

Witnesses:

JAMES W. BUSBY, JAMES J OHNSON.

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