US426511A - Steam pump and motor - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

F. O. OLIN. STEAM PUMP AND MOTOR.

No. 426,511. Patented Apr.-29, 1890.

Witnesses Inventor 04. 6 a

(N0 Model.) 2 Sheets-Sheet 2.

P. O. OLIN. STEAM PUMP AND MOTOR.

' No. 426,511. Patented Apr. 29, 1890..

FIG. 2.

flttorney.

UNITED STATES PATENT OFFICE.

FRED O. OLIN, OF BUFFALO, NElV YORK, ASSIGNOR OF ONE-HALF TO DANFORTH & CLARK, OF SAME PLACE.

STEAM PUMP AND MOTOR.

SPECIFICATION forming part of Letters Patent No. 426,511, dated April 29, 1890. Application filed November 9, 1889. Serial No. 329,764. (No model.)

To aZZ whom it may concern:

Be it known that I, FRED C. OLIN, of Buffalo, in the county of Erie and State of New York, have invented certain new and useful motors; and it consists, essentially, in the novel and peculiar combinations of parts and details of construction, as hereinafter first fully set forth and described, and then pointed out in the claims.

I11 the drawings already mentioned, which serve to illustrate my said invention more fully, Figure l is a side elevation of my improved steam pump and motor. Fig. 2 is a longitudinal sectional elevation of the same.

Like parts are designated by corresponding letters of reference in all the figures.

The object of this invention is the production of a high and low pressure steam pump and motor combined that can instantly be changed from a pump to a motor, or vice versa.

A is the pump and B the steam cylinder of my motor and pump combined, both being fastened upon a suitable base. C by their flanges f f respectively, and tap-bolts, as shown. This base Chas a steam-chamber D, formed by a partition-wall C, and a suitable bottom in said base, there beinga steam-supply pipe E entering said base and chamber with a pendent wall or bridge-piece F in said chamber to intercept any water of condensation that may enter said chamber, and which water may be carried cit by the cock g or proper devices, such as a trap, 850.

From the side of the chamber D leads a pipe G to a steam-chest II, in which is located a puppet-valve I, actuated by an cecentric K from the main shaft L. This puppet-valve connects with a rod .I by its valverod 1', there being a slotted aperture 7/ in said rod i, so that the pin connecting these rods has a certain play, as will hereinafter more fully appear. The rod J connects with the eccentric by a jointed connecting-rod 7t, and it is guided vertically by an auxiliary rod 7c, formed in one piece with the rod J, and having on its upper end a fork to, passing over the shaft L in an obvious manner. In the rod J there is a slotted aperture j, wherein is pivoted one end of a beam R, the opposite end of which connects with a valve-rod r, the fulcrum of said beam being in an upwardlyprojecting support I'I', formed in one piece with the cover for the steam-chest I-Lthere being on said support alateral projection h, serving as a guide for the said valve-rod '7".

Below the puppet-valve I there is located a further puppet-valve S, connecting with the valve-rod r by a lever S, supported on one end at the point 0 in the base and engaging said puppet-valve by a yoke 5, having a knifeedge, as illustrated-in Fig. 2. The rod r is connected in its lower end with said lever S by a slotted aperture 9", so that a certain dwell occurs in the operation of the valve S, to be hereinafter more fully explained.

The cylinders A and B have upwardly-projecting supports N N, provided on their upper extremity with bearings M M for the reception of the main shaft L, already mentioned, which shaft has on its ends cranks P P, set at opposite points and connected with the pistons of the pump and steam cylinders by means of connecting-rods O O" and d d, respectively.

The pump and steam cylinders are lined with composition linings B A, respectively held down upon the base O by the flanges I) Z) and underlying elastic packing 00 00 on the upper end of said cylinders, there being annular spaces D It in said cylinders, so as to isolate said linings from the cylinders, and so that the annular space D forms a steamjacket for the steam-cylinder, and the annular space (Z in the pump-cylinder acts as an air-chamber to receive the concussion of the water forced by said pump. In the base 0 there are apertures 1), connecting the annular space D with the steam-chamber D, so that the steam may enter said annular space i and water of condensation pass from the said space into said steam-chamber.

Tho steam-piston O is of usual. construetion, it having a pin a, serving as. a wrist-pin for the connecting-rod 0.

Below the pump-cylinder is located a suction-valve chamber V, having a disk-valve e and suitable apertures to connect the interior of said chamber with a suction-chamber U, formed in the base, while a suitable recess in the face of the base and concentric with the pump-cylinder is placed a circular disk 7", having apertures m, covered by a flexible disk m, to act as a discharge-valve for the pump in conjunction with a metallic sleeve m, fitting the exterior of the pump-lining and bearing with a flange upon said flexible disk m to cause the latter to properly seat upon its plate.

To the suction-chamber U leads a suctionpipe E, while from the annular chamber 71. leads adischargepipe P, Fig. 1, having a branch fitted with a stop-cock 1, and in its straight run 4 a stop-valve 2, there being above this stop-valve a T 3, having, in its branch a pipe 5, which connects downwardly with an L Z and stop-valve Y, and dischargepipe Y, having perforations y, as shown in Fig. 2, the said perforated pipe entering the suction-chamber U between the pump-cylinder and the casing T of the puppet-valve S.

The pump-piston A" has a wrist-pin a to connect it with the connecting-rod cl, and it has a downwardly-carried extension a. to.

displace in the suction-valve chamber V as much space as practicable.

The operation of this steam pump and motor is substantially as follows: Assuming the parts to be in the position shown in Fig. 2- that is to say, all the valves closed and the steam-piston at its apex and at the moment of commencing its downstroke. The beam R has up to this point traveled a distance equal to the length of the slot-hole in the valve-rod r, so that as soon as the steam-piston starts on its downstroke the puppet-valve S (being the exhaust-valve) opcns'and allows the steam to escape into the suction-chamber ,U, which, it is assumed, is filled, or at least partly filled, with water either from priming it or from the action of the pump, where said steam will be immediately condensed, and thereby cause the downstroke of the steam-piston by atmospheric pressure, and at the same time assist in drawing Water into the suction-chamber through the suction-pipe E. This pump-piston acts-both as a sucker for the water to be raised and as an air-pump for the condenser, it drawing from the suction-chamber U, and thereby drawing with the water also the air and other products resulting from the condensation of the steam. The suction-valve chamber V is carried down nearly tothe bottom of the suction-chamber U, so as to draw therefrom as much as possible of the water and air contained therein. This is quite an essential feature to secure regularity in the action of the pump, which would not be so readily attained were the suction-chamber kept more or less full of the water of condensation. Owing to the partial vacuum in the suction-chamber during the downstroke of the pump-piston,when water is being forced, water will be drawn into the suction-chamber through the suction-pipe E during that stroke, so that as soon as the steam-cylinder exhausts its steam will immediately come in contact with the fresh and cold Water in said suctionchamber. completed its downstroke, the puppet-valve S will seat, while the rod 2', connected with the puppet-valve I, will have moved the length of the slot-hole 2", so that as soon as steam pistonO has completed its downstroke and just begins its upstroke said puppet-valve I will open and allow steam to enter the steanr cylinder by the passage 0, which also forms the exhaust-passage for the steam after the completion of the upstroke. A repetition of the operations heretofore described causes the continuation of the operation of the machine, a fly-wheel Q, having a band-Wheel Q, assisting in carrying the cranks over their dead-centers.

It will now be observed that the water-pump by the pump-piston forms the medium to condense the steam used in the steam-cylinder. Should it be required to use high-pressure steam in the steam-cylinder to lift water from a certain height, I shall regulate the length of the slot 1" in the valve-rod i, so that the puppet-valve I will close early in the upstroke of the steam-piston, and thereby allow of an expansion of the steam sufficiently, so that when the upstroke is completed the initial steam-pressure shall have been reduced to'a comparatively low one, and so that this steam will be readily condensed by the water in the. suction-chamber U without raising its temper-attire to any great extent, although steam When the steam-piston has nearly at a high pressure will be condensed by said by opening the stop-valve l, the pipe 6 of which should be connected with a sewer, res-- ervoir, or other suitable receiver for the water of condensation, resulting from the operation of the engine, and which is not intended to be forced into the receptacle into which the pump when in use will deliver its Water, and then the stop-valve Y opened to dis charge into the suction-chamber U, with water which will now come from the said reservoir into which the pump delivers its water or which might be supplied from a streetmain or other suitable source. If steam is now given to the steam-cylinder, the operation of the steam-piston and its accessories will be the same as heretofore described; but its exhaust-steam will now be condensed by the sprays of water issuing from the perforated pipe Y, and removed from the suction-chamber by the pump acting in this case as the air-" pump only. It will thus beseen that the change from a steam-pump to a steam-engine is one that can be made in a few moments of time, so that this machine is admirably adapted for farm and similar purposes, where it will only for a short time be used as a pump and may then be run as a motor.

.One of the advantages of constructing the pump and motor as described is, that the condensed water always carrying with it a certain portionof air, the air in the air-chamber will constantly be replenished, it being a fact that in water-pumps having air-chambers the air is frequently forced out of said chambers, and then fails to properly perform its predesigned function. So does the suction-chamber act as an air-chamber for the suction-pipe, for the reason that it will never fill entirely with water when the engine is running even at a slow speed.

.IIaving thus fully described my invention, I claim as new and desire to secure to me by Letters Patent of the United States 1. In a steam pump and motor, the combination, with the base. containing the watersuction chamber, of the steanrcylinder having the piston, as described, the steam-chest I having the inlet-valve operated intermittently by the eccentric and rod having a dwell in its operation, the exhaustwalve locatediin said suction-chamber and operated by mechanism actuating the admission valve, the pump-cylinder having its suction-valve within said suction-chamber, and a suction-pipe, as and for the purpose stated.

2. In combined steam pumps and motors, the combination, with the base having steamchamber, of a steam-cylinder, a steam-chest connected with said steam-chamber and pro vided with puppet-valve actuated by an eccentric, a watei suction chamber communieating with said steam-chest, and a watersupply for said suction chamber, as de scribed.

3. A combined steam-pump and steam-motor consisting, essentially, of a base,a steamcylinder having a piston connected with a crankshaft, a steam-chest having an intermittently-opcrating admission-valve operated by the eccentric and rod having slotted con nection, an exhaust-valve operated by said eccentric and intermediate levers, a pumpcylinder having its piston also connected with said crank-shaft, a suction-chamber having the suction-valve of the pump and the exhaust-valve of the steam-cylinder, a suctionpipe entering said suction -chamber, and a discharge-valve and discharge-pipe for said pump having pipe-connection with said suction-chamber, whereby said steam-pump is adapted for operation either as a steam-pump or as a stean1-condensing motor, as set forth.

4; In steam pumps and motors, the combination, with the steam-cylinder and its piston, of a steam chest having a supply and an exhaust valve actuated by a single eccentric connecting with. said eccentric by the rods having slotted apertures, whereby said valves are actuated intermittingly, as and for the purpose stated.

5. A steam pump and motor combined, having a base provided with a suction-chamber, an upright steam-cylinder open at its upper end and provided with a piston, a steam-chest provided with an admission valve, an exhaust-valve within the suction-chamber and operated as described, an upright pump-cylinder, also open at its upper end and provided with a piston, a suction-valve located in said suction chamber, a suction-pipe connected with said base, a pump discharge-valve and discharge-pipe, a connecting-pipe between said discharge-pipe and thesuction-chamber, and a spray-nozzle on the end of said connecting-pipe, as stated.

6. In a steam pump .and motor, the combination, with the steam-motor, of a pump having a suction-chamber and suction and dis charge pipes, as described, and a pipe-connection between said discharge-pipe and said suction-chamber and the exhaust-valve in said suction-cha1nber, whereby the exhauststeam of said engine is first condensed by the water entering the said chamber through the pipe-connection to start the suction of the suction-chamber and then by the water entering by the suction-pipe, as stated.

'7. Thecombination, in steam pumps and motors, with the eccentric having connectingrod andslotted rod 1, of the slotted beam R, valve-rod 0*, having slotted aperture 0*, lever S, supported on one end and connecting with the other with said slotted rod r, and the puppet valve S, having the yoke s engaging said lever S, as stated.

8. In a steam-motor, the combination, with the base 0, having the steam-chamber D provided with the passages b, of the steam-cylinder B, having the open collar or flange I), and the cylindrical lining B, of less diameter than said cylinder, said lining being held in position by the said flange, and an elastic gasket underneath said flange, as and for the object stated.

9. In a steam-motor, the combination, with the base having the steam-chamber D, provided with the partition F and steam-outlet G and steam-inlet E, and the cylinder B, having the lining B, of less diameter than the said cylinder, the space D, between said cylinder and its lining, being connected with the chamber D by the passages 1/, whereby said space is connected with said chamber and its condensed water returned. thereto, as set forth.

In testimony that I claim the foregoing as my invention I have hereto set my hand in the presence of two subscribing witnesses.

FRED O. OLIN.

.Attest:

MICHAEL J'. STARK, WILLIAM O. STARK.

Images