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No. 350,446. Patented .Oct. 5, 1886

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No. 350,446. Patented .Oct. 5, 1886 (No Model.) 3 Sheets-Sheet 1. J. RICHARDS. ‘ ' COMPOUND STEAM ENGINE. No. 350,446. Patented .Oct. 5, 1886. : ' gvweml'o'c I (No Model.) 3 Sheets-Sheet 2. J. RICHARDS. COMPOUND STEAM ENGINE. No. 350,446. Patented 00's. 5, 1886.> I _ _._.|_ 6" ______I___l l _ _ _ _ __ |t____ ___ T ____|"f __—__ ' l |_ _ _ _ _ _ _ _ _'_ _ _ _ _ _ _ __ wand-50% ' gvwami'oz -' @Qf’d _ 33913 ' GMMW6%4 (No Model.) 3 Sheets-Sheet 3. J. RICHARDS. COMPOUND STEAM ENGINE. No. 350,446. - ' Patented Oct. 5, 1886. 2774/l/ _ L 1 M F37. a. / WA TE/i’ q/Vtlmeooao WM (5. MW N. PETERS. Pholo-Lilhngmphw. Wnshmglnh. Dv C. NI-TED STATES PATENT OFFICE. ’ JOHN RICHARDS, OF SAN FRANCISCO, ‘CALIFORNIA. COMPOUND STEAM-ENGINE. SPECIFICATION forming part of Letters Patent No. 350,446, dated October 5, 1886, ' Application ?led May 13, 1866. Serial No. 202,042. (No model.) To all whom. it may concern: right angles to the sectionslof Fig. 2, and trans Be it known that I, J OHN RICHARDS, a citi verse to the axial line of the shaft, and Fig. 4 zen of the United States, residing at San Fran is a partial top plan view. 55 cisco, in the county of San Francisco and State Like letters of reference designate like parts of California, have invented certain new and throughout the several views. useful Improvements in Compound Steam-.En A represents the main frame or hollow col gines; and I do declare the following to be a umn, which supports thereon the cylinder B, ' full, clear, and exact description of theinven and which is itself supported upon the base 0, tion, such as will enable others skilled in the ‘ said base serving also as a condenser, as will IO art to which it appertains to make and use be hereinafter explained. the same, reference being had to the accom D represents the ‘casing of the air-pump, panying drawings, and to the letters and ?g which is located to one side of the main frame. ures of reference marked thereon, which form The steam-cylinder B contains a steam-pis- ' a part of this speci?cation. ton, E, which is formed with an extension, F, This invention relates to the class of compound that ?ts closely within a downwardly-extend _ condensing steam-engines; and it consists of ing sleeve, G, secu red to and preferably formed such an engine having a single steam-cylinder integral with the cylinder] A horizontal inclosing a steam-piston upon whose opposite crank-shaft, H, is journaled at either end in 70 sides or ends the steam acts successively, the bearings a a, and connects with the piston by area of the initial end of said piston being means of a rod, I, properly secured to the pis reduced by means of a trunk with which it is ton and the shaft so that the reciprocation of provided. _ the former may rotate the latter. 7 . The invention further embraces a hollow Steam isintroduced to the cylinder by means 75 supporting-column, which'incloses the princi of a steam-supply pipe, J, in connection with 25 pal shaft-bearings of the enginein such a man which is provided a governor, K, to regulate . ner that a lubricatingliquid placed within the the motion and govern the supply of the in column may be dashed into the bearings and ?owing steam. The exhaust-steam passes out thence drained back by suitable conduits to through the pipe L into the condenser O, the 80 the oil-reservoir in like manner with similar water for the condensation being furnished by methods now in use in singleacting engines a waterisupply pipe, M, which enters the pipe having open-ended cylinders. , / L. A valve for the exhaust-steam is also pro I It consists also in constructing the base of vided at the point Z), Fig._ 3, in order to allow the frame to serve as a condenser, by making the steam to pass out into the atmosphere when 85 said base hollow, and providing it with a it is desired to operate the engine as 'a non 35 series of vertical partitions or diaphragms, condenser. , which are alternately secured to the top and N designates a valve chest or box contain bottom of the casing so that the exhaust-steam ing a slide-valve, R, which is operated by the may be obliged to pass several times beneath following connections with the crank-shaft H: the surface of the water in the condenser and Avalve-crank, P, is secured eccentrically at 90’ thus become completely lique?ed before it its lower end to the outermost extremity of reaches the air-pump; and the invention also the shaft H, while the upper end of the crank comprises certain peculiarities in the construc is pivotally connected with a slide-bar, O, to tion, arrangement, and combination of the which it imparts a reciprocating motion, and 95 various mechanical details, as will be herein by this means operates a valve-rod, Q, and the 45 after fully described. ' slide-valve R, and thus opens and closes the In the annexed drawings illustrating my in ports a d e for admitting steam to the‘ piston. vention, Figure 1 is an elevational view of my In considering the operation of the engine, improved steam-engine, showing the various suppose, ?rst, that the valve It is in the posi parts in their relative position. Fig. 2 is a tion shown in full lines in Fig. 2, with the port .50 vertical section'of the same on the line at x of 0 open. Steam will then pass from the boxN Fig. 1, and parallel to the axis of the crank through the port 0 and ?ll the space f beneath shaft. Fig. 3 is a partial vertical section at the piston E, which will be driven to the up 350,446 per limit of its stroke, as shown. At the same jcction and condensation is drawn off by means time the exhaust-steam from the upper end of of the pump 1), which is driven by the crank the cylinder will escape through the port d wheel T and the pulleys U and V and their into the exhaust-port e, and thence to the pipe connections. 5 L. lVhen the piston has thus completed its The bearings a a, above referred to, of the upward stroke the valve will be moved to the main shaft II are inclosed within ?anged position shown in dotted lines in the same shells or housings a n, which are bolted or ?gure. The steam will then pass from be otherwise .?rmly secured to the main. frame neath the piston through the port 0 into port A, and are provided with screws 0 0 to keep to d, and thence to the top of the piston E, forc the main bearings p p in proper adjustment. ing the same downward with a power equal to The engine being double-acting,thesc bear the difference between the area of the piston ings are subject to strain in two directions. E and the trunk F, by virtue of the ten The screws 0 0 being placed outside, the ad 80 sion of the steam in its then expanded condi justment is made without openingthe door 3. 15 tion. In this way it will be seen how the The lower portion of the main frame A serves same steam can be employed on both the bot ‘as an oil-receptacle, and as the shaft II re tom and top of the piston, and how it can be volves the oil or other lubricating liquid con expanded to several times the initial volume tained within the receptacle will be splashed 85 by means of a single cylinder and a simple into the bearings. Passing through thebear 2o slide-valve. The trunk or piston extension F ings this oil will be arrested in the chambers corresponds to the piston-rod and guide-bars q, whence it will be drained back into the main of a common double-acting engine, and closes receptacle by means of channels 0‘. the bottom end of the main cylinder B in the - As shown in Fig. 3, the main frame is par 9O same manner as a packing-gland. Both the tially filled with oil and the crank on its 25 piston (see Fig. 2) and the extension (see FiO". lower stroke enters the oil and dashes it up 3) are generally provided with packing-rings ward. g to prevent the passage and escape of the Having thus described my invention, what steam; and the connecting-rod I is preferably I claim as new, and desire to secure by Letters 93 made with an outer strap, h, and a strut, 127, Patent, is——- . 30 the latter acting on the top pin, so that the 1. In. a steam-engine, the hollow sole‘plate key j and screw It can operate to take up the or condensing-chamber provided with a series wear at both ends. There being no packing .of diaphragms secured alternately to the top gland or cross-head slides, there is conse and bottom walls, substantially as and for the I00 quently no adjustment to be performed in purposes described. 35 side the main frame A, except that of the 2. In adouble-actingstcanrengine, the com~ connecting-rod I. This construction per bination of the exhaust-pipe, the water-sup mits, therefore, the inclosure of the parts for ply, the hollow sole-plate or comlensing-cham the purpose of lubrication, the same as in ber provided with a series of diaphragms se the ease of single-acting engines.
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