US222439A

US222439A - Imprdvewte nt in -rotary

Info

Publication number: US222439A
Authority: US
Publication date: 1879-12-09
Anticipated expiration: 1896-12-09

Description

2 Sheets-Sheet 1. 8., D., & J. BARBOW. Rotary Engine and Pump No. Paten Zzg G/H K I Z H WITNESSES: INVBNTOR: 4% 4? MW .Jww w ma ATTORNEYS.

2 Sheets-Sheet 2.

8., D., 80 J. BARROW. Rotary Engine and Pump. No. 222,439. Patented Dec. 9,1879.

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INVENTOR WITNESSES: l 4 J gamma Mymw% wmfl ATTORNEYS.

SAMUEL BARRO'VV, 'DAVFD-BA RROW, AND *UAOOB 'BARRONV, OF YVINDFALL,

INDIANA.

| MPRGV'E-MENT IN R OFARY EFENGIINPE-SJAN o PUM PS.

Specification forming part fofLetters Patcn'tNo. =2-2'2-i4 39, (l atedDeceinber 9, 1879 application filed To all whom it may concern *Be it known that we, SAMUEL B-AR'ROW, DA- VID BARROW, andJAcoBBARRow, o'fWind fall, in the county of- Tipton and "State of Int-heinventionconsistsin certain'nov'el details of construction and combination; which will be described in connection with the accompanying drawings and" pointed out in the claims.

, In-the drawings,- Figure l is a side elevation of the engine. Fig. 2 is a vertical cross-section on line a; a; of Fig. 1. Fig. 3 is a side elevation, reverse of Fig. 1', andwith the side plate of the case removed. Fig.4 is a side view of the wheel detachedyand with one side removed to show the operating mechanism of the pistons. Fig.5 is an inside view of the plate removed in Fig. 4. Figs. 6 to 12 represent details of construction of the pistons and their packing.

Similar letters of refercnceindicate correspondin g parts.

A is the case of the engine, having a circular aperture, a, and fitted with the side plates, 1) 0,

between which is 'fitted the wheel B, eccentric.

to the aperture a. Thewh'eel B is sustained at one side by a hollow gudgeon, d, entering plate 0, and at the opposite side by the shaft 6, that is connected to the wheel and extends through plate I) and through a box on the yoke f. This shaft 0 carries a-pulley, g, for taking power from the engine, or for driving the wheel B by a separate motor when the apparatus is used as a pump. The side plates, b c, are each formed with an annular slot concentric with wheel B, but of smallerdiameter, in which slots are metal packing-rings h, for holding packing, that is pressed in contact with the sides of the wheel by set-screws 1'. Within the circumference of these packing-grooves the inner surfaces of the plates 1) 0 are recessed to receive the sides of the wheel B, which is formed with a rabbet around its edges to correspond. This construction gives a tight packin g, andpcrmitsrenewal of the packing without reinoving the side plates; Zr 0.

As shownin Fig. 3, thewheel B is in contact at one point in itscircuinference with the "Side of the aperture or steamway a, and at this point th'ereisa inetal packing, is, that is adjusted by a screw, l,'fro1n the outside of the case.

anm aresteam-portsat opposite sides of the packing-7c, an'd n Mare-grooves in theside of "the steamway, which permit the exhaust of -steam andthemhange of pressure from one piston to th'e other, as hereinafter described.

I The admission ofsteam is regulated by valves "cont-ained in t he steamw'ays 0 0, both of which communicate with both portsm m, and are cut off from either 'port" by valves 19 1;, which are fitted to be operated from the outside by hand. The-'steamway 0 is the inlet for steam, and o the exhaust, and the valves are changed acejordi'n g tothe direct-ion inwhich the engine is to run.

The wheel B consists of a ring portion, 1', (see Figs. at and 5,) formed with two radial slots at opposite sides, which form boxes for the pistons s, and the sides of the ring are covered by the plates t t,.which inclose the operating mechanism of the pistons, and are also grooved at the inner sides for the pistons s. The pistons s are attached upon the outer ends of rods or arms a, that pass through tubular guides a, which contain packing, and the said arms a are connected at their inner ends to a cross-head, '0, that moves against the slidcways s" on plate f. The connections are made by right and left handed screw bolts and nuts, which permit adjustment to regulate the position and movement of the pistons. The pistons s are operated by a crank -arm, to, that is on the end of a shaft, a, (see Figs. 2 and 4,) the crank-pin of which arm carries a slide-block, b, that moves freely in a slideway that is formed in the side of head '0. The shaft a passes through the hollow axis d of wheel B and through a plate, 0. The portion of shaft a in plate 0 is squared to fit the correspondingly-shapcd aperture of plate 0', and at its outer end the shaft a is fitted with a nut for retaining it in place. By this construction the shaft a remains stationary, and

the revolution of the wheel B will cause radial movement of the pistons at the proper time, so that the end of each piston conforms to the circle of the steamway a.

The construction of pistons s and manner of packing them are shown in the figures from 6 to 12. Each piston is grooved at its outer edge and sides to receive the metal packingstrips (1, which are pressed outward in contact with the sides of the steamway by the pressure of steam, which has access behind the packing by an opening and passage, 6, at the side of the pistons, and this outward movement is limited by an inclined lug or flange, f, that is formed on each packing-strip d. The lugs f serve also to prevent steam escaping at the back of the pistons.

As the engine is to be run in either direction, there is an opening and passage, 6, at each side of the pistons. To prevent steam passing through, a partition, 9, is fixed in the packinggroove, projecting into a groove in the packing, thereby separating one passage 6 from the other.

At the top of case A are oil-cups h, by which the interior parts are lubricated, and at the bottom is a cock, t, for permitting escape of water. The side plate b of case A is formed with an opening, it, and the side plate t of wheel B with openings 1, through which openin gs access may be had to adjust the pistons s.

In operation, the steam enters by the passage o to either port m or m, as the valves 12 are set, and the exhaust goes out by the other port m or m to the passage 0.

The steam escapes over the end of the piston s that is under pressure as soon as the piston reaches the groove n or n, and until that point is reached the live steam passes over the top of the other piston s by the other groove n or a. As soon as the exhaust commences the pressure is taken upon the piston nearest to the live-steam port.

In using the above apparatus as a pump, it is to be driven by a separate motor, and the passages o 0 connected with suction and discharge pipes. Each piston will act to fill the space behind it by exhaustion of the air, and to force out the water in front.

This construction furnishes an engine and pump of durable construction that can be readily and tightly packed, and which may be taken apart with facility for repairs. The apparatus is also adapted for use as a blower, and will in that case be driven by a separate motor.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- I 1. In a rotary engine and pump, in combination with the case A, having slotted and recessed side plates, b c, the wheel B, formed with rabbeted edges, the packing-ring h, and set-screws z, substantially as described and shown, and for the purposes specified.

2. In a rotary engine, the combination of the pistons s, the slotted ring 1", and the plates t t, grooved on the inner sides, as shown and described.

SAMUEL BARROW. DAVID BARROW. JACOB BARROW.

Witnesses:

PERRY BEHYMER, A. ELLis.