US368442A - Pumping-engine - Google Patents

Description

(No Model.)

3 Sheets-Sheet; 1. G. BALDWIN.

PUMPING ENGINE.

Patented A-u N. PETERS. Fhunrmhugmphw, wnmngmn, D. c.

(No Model.) 3 Sheets-Sheet i2q C. W. BALDWIN.

PUMPING ENGINE.

No. 368,442. Patented Aug. 16, 1887.

N. PEYEHS. Phmovumognphe 3 Sheets-Sheet 3.

(No Model.)

C. W. BALDWIN.

PUMPING ENGINE.

ented Aug. 16, 1887.

vUNTTED STATES PATENT OFFICE.

CYRUSv 7. BALDWIN, OF YONKERS, NEV YORK, ASSIGNOR TO THE HYDRAULIC ELEVATOR COMPANY OF CHICAGO, ILLINOIS.

PUIVIPING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 368,442, dated August 16, 1887.

Application filed June 25, 1886. Serial No. 206.246. (No model.)

To aZZ whom it may concern,.-

Be it known that I, CYRUs W. BALDWIN, a citizen of the United States, and a resident of Yonkers, in the county of W'estchester and State of New York, have invented certain new and useful Improvements in Pumping- Engines, of which the following is a specification.

My invention has for its object to combine a pumping-engine and driving-engine in a compact space to secure greater efficiency, reduce friction, and facilitate the use ofthe drivingengine and pumping-engine separately, the invention being intended for use especially in connection with driving-engines employing an explosive gaseous mixture as a motive power.

In the drawings, Figure 1 is a sectional elevation of a combined driving and pumping engine,illustrating my invention. Fig. 2 is an external elevation. Fig. 3 is a plan view.

The upper bed or frame, A, of the engine consists oi' a single cast-ing constructed at one end to form a support for the cylinder B, adapted to receive steam or an explosive mixture, and having near the opposite ends bearings for the crank-shaft C, provided with a tlywheel, D, at one end anda band wheel or pulley, E, at the other, the crank being connected by the usual connecting-rod, F, to the pistonrod G, supported at the outer end by a crosshead, H, moving upon horizontal slides on the frame.

The parts above described constitute the parts of an ordinary steam or gas engine and may vary in construction.

The frame A is supported upon a bed, I, which is a hollow box or casing of cast metal with parallel sides and rounded front end, the open top being closed by the frame, which is securely fastened to the bed by bolts 1.

At the end of the bed nearest the crankshaft is an opening, m, adapted to receive the cylinder or casing J of a pump,which may be ot' any suitable character; but, as shown, it is the cylinder of a differential pump having a trunk-piston, K, which slides through a packing-box at the inner end of the cylinder, the latter having an external flange, 2, which lies against and is bolted to the end of the bed I.

In brackets L, bolted to the end of the bed beneath the engine-cylinder B, turns a crankshaft, N, aconnecting-rod, M, being connected to the crank of the shaft N at one end and to a cross-pin inside of the trunk-pistou Kat the other, and extending longitudinally through the bed, which has an opening' at the rear end sufficient for the passage and play of the connecting-rod.

Upon one end of the crank-shaft N is a bandpulley, 3, around which and around the pulley E passes a belt, 4, through the medium of which motion is transmitted from the driving crankshaft C of the engine to the shaft N of the pump.

By the arrangement above described I support both the engine and the pump upon a single bed, while the entire apparatus occupies but little more space in length than would be required for the bed of the engine alone. I also secure an extended throw of the pumppiston, and am enabled to use a connectingrod longer than the bed itself, thereby avoiding lateral thrust upon the pump-piston and greatly reducing friction and wear. In addition to this, the increased weight upon the bed I, resulting from the attachment ot' the pump thereto, imparts increased stability and a better foundation for the frame of the engine, which is desirable when the latter is run at high speeds and with a heavy fly-wheel.

In the construction of pump shown thev pump-cylinder is open at both ends, and has two channels or passages, 7 and 8, separated from each other and communicating with the opposite ends of the open cylinder 5, one communicating with the port9 andthe other with the port 10 in the valve-plate 11, secured to or forming part of the top ofthe cylinder J.

To the top ofthe cylinder J is boltedarectangular casing, L', surmounted by au air-vessel, Q, and divided horizontally by a Valveplate, 12, into two chambers, Y Y, springseated valves 13 14 15 closing the ports in the valve-plates 11 and 12, as shown.A

To a neck or extension, 16, of the cylindcrJ is bolted an elbow, 17, connected with theinlet-pipe of the pump, a valve-plate, 18, provided with ports and spring-seated valves 19, extending across the elbow or neck.

In the piston K is a partition, 6, forming, with the end 21 thereof, a chamber, W, with an opening, 31, to which is tted a valve, 22,

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spring-seated, and openings 32 put the chamber W in communication with the contracted trunk of the piston. The outlet-pipe 20 of the pump communicates with the chamber Y of the casing L. When the piston K moves in the direction of its arrow, Fig. 1, the valve 14 closes, the valves 19 rise, and water flows into the forward end of the pump-cylinder, while water from the opposite end is forced through the channel 8 and chambers YYinto the pipe 20, the valves 15 and 13 rising. On the reversc movement ofthe piston the water is forced from the forward end of Vthe cylinder through the channel 7 and chambers Y Y, the valves 14 13 rising, the valves 15 and 19 being seated, and a portion of -water also flowing through the port 31 in the end of the piston and through the openings 32 into the space surrounding the piston within the cylinder-5. When a gas-engine is used in connection with the pumping mechanism, the reservoir R may be arranged in and concealed by the bed I, as shown, While the governor` S may be mounted upon a shaft having its bearings within the hollow frame A of the engine, thereby avoiding the exposure of these parts and econornizing space.

In order to maintain the driving -belt 4 taut, I use a belt-tightener, which is mounted upon or supported by the bed I. Thus a frame, T, having a pair of arms, 3() 30, and a forked arm, 31x, at an angle to the arm 30, rocks upon a rod, 32x, supported at 'one end by the bed I and at the other by a bracket, 33, bolted'to the bed. The forked arm 31x carries a pivotcd thimble, 34, through which extends a screw, 35, provided with a handwheel, 36, and fitting a pivotcd nut, 37, rocking upon a bracket, 38, secured to the bed I.

Between the arms 30 30 of the frame T turns the tightening-pulley 39, which lies beneath the under portion of the belt 4, and may be forced against thcv latter with any desired pressure by adjusting the frame T by means of the adjusting-screw 35.

Although I have described the bed and frame as formed in the way shown and in two parts, they may be differently constructed and in one piece. It will be seen, however, that by forming the two beds separately, as described, the engine may be removed and put upon another bed for use as an engine alone, and .that the pumping device may be separated from the bed, leaving the engine for use alone. The bed I and its pumping devices, being detachable from the engine, may be used alone as a pump, motion being imparted to the pulley E from any other driving pulley.

Although I have shown beltconnections, any suitable connections may be used for driving one crank-shaft from the other.

Without limiting myself to the` precise construction and arrangement of parts shown, I claiml. The combination, in a pumping-engine,l of a driving-cylinder, piston, crank-shaft, and

connections, and a pumping-cylinder, piston, crank-shaft, and connections, all carried by a single bed or frame, the parts of the pump being supported thereby beneath the parts of the engine, the two cylinders being at the opposite ends of the structure, substantially as set forth.

2. The combination, with a supporting bed or frame, of a drivingcylinder and crankshaft supported in bearings at the upper portions of the frame, a pumping-cylinder and crank-shaft supported in bearings upon the frame below those of the driving-engine, and

connections between the shaft of the drivingengine and the shaft of the pump, the two cylinders being at opposite ends of the structure, substantially as set forth.

3. The combination, with a driving-engine, of a hollow bed supporting the driving-engine at the top of the bed, having bearings beneath the cylinder of the driving engine for the crank-shaft of thepump, a connecting-rod eX- tending between the pump piston and the lower crank-shaft through the bed, and connections between the two crank-shafts, substantially as set forth.

4. The combination, with the driving engine, of a hollow bed supporting the same at the top, a pump-cylinder extending through an opening at one end of the bed and bolted to the latter, a crank-shaft supported at the opposite end of the bed below the cylinder of the driving-engine, and a connecting-rod extending between the piston of the pumpingcylinder and the lower crank-shaft, substantially as set forth.

5. The combination, with the driving-engine, of a hollow bed supporting thesame, a pumping-cylinder supported at one end of and extending into the bed and provided with a trunk-piston, and a crank-shaft supported at the opposite end of the be-d and connected to the trunk-piston by a rod extending through the bed, substantially as set forth.

6. The pumpingcylinder, piston, crankshaft, and connectingrod supported upon a common bed, in combination with a separable frame or bed supporting the cylinder and shaft and connections of a driving-engine, and supported upon the bed of the pumping-cylinder, and connections between the engineshaft and pump shaft, substantially as described.

7. The combination of the motor engine, hollow bed, pumping cylinder, and connections supported by the bed below the gas-engine, band-pulleys upon the crank-shafts of the pumping and gas engines, and a band extending round both pulleys, substantially as set forth.

In testimony whereof I have signed my name Ato this speciticationin the presence of two subscribing witnesses.

CYRUS YV. BALDWIN.

Witnesses:

WM. H. SWENY, .Toi-1N T. GAWRY.

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