US 384633 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
H. M. LOURIE.
FORGE PUMP. No. 884,683. Patented June 19, 1888.
wih moo ey.
NITED STATES PATENT OFFICE.
HERBERT M. LOURIE, OF KEOKUK, IOWA.
FORCE-PU M P.
SPECIPICATTON forming part of Letters Patent No. 384,633, dated June 19, 1888.
Application filed May 12. 1887. Serial No. 237,941. (No model.)
To aZZ whom, it may concern: I
Be it known that I, HERBERT M. LoUnIn, a citizen of the United States, residing at Keo-, kuk, in the county of Lee and State of Iowa, have invented certain new and useful Improve ments in Force-Pumps; and I do hereby declare the following to be a full, clear,"and exact description of the invention, such as will on able others skilled in the art to which it appertains to make and use the same.
This invention relates to that class of forcepumps in which the pump-cylinder is usually hung down in the well from a standard which supports the pump handle and spout above ground, and the piston is provided with a forcing-plunger about half as large as the pistonhead.
The object of the invention is, first, to provide means whereby the plunger may be tightly packed to prevent leakage around it and yet be readily removed,in connection with the piston, whenever the piston-packing requiresattention, and, second, to providemeans whereby the air-chamber and delivery-pipe are utilized for attaching the cylinder to the pump top or standard.
To this end the invention consists in the con struction and combination of parts forming a force-pump,hereinafter described and claimed, reference being had to the accompanying drawings, in which-- Figure 1 is a side elevation of a pump according to my invention, part broken away. Fig. 2 is a longitudinal section of the pumpoylinder and attachments on a larger scale. Fig. 3 is an interior view of one outlet to the cylinder,and Fig. 4 is a horizontal section at the line 00 x.
Number 5 represents the cylinder provided with a screw-cap, 6, at its lower end, adapted to receive an inlet-pipe, and with two bosses beside its upper end to receive the discharge pipe 7, and the air-chamber 8.
9 represents the piston, comprising the head 10, the valve 11, the cage 12, screw-threaded upon the head, and the leather packing 13, held between the cage and head.
14 represents the plunger, which is in crosssection about one-half the area of the piston 9, and it is secured thereto by being screw 7 threaded directly upon the cage 12 with an This method of securing the air tight fit.
plunger directly to the cage without the in tervention of bolts or similar parts is the first novelty of my invention.
15 is the pistou-rod, which may be secured directly to the cage, as here shown, or to the upper end of the plunger, in case the latter is made solid instead of tubular, as shown. The cage performs the usual service of retaining the valve in working position, connecting the piston head and rod, and allowing free upward escape of water from the valve.
16 represents the usual lower check-valve.
' The second novelty of this invention consists in the arrangement of parts at the top of the cylinder wherebythe plunger is tightly packed around to prevent leakage, and yet the whole piston and plunger may be bodily removed after merely unscrewing two nuts without the aid of pipe-tongs, as follows: The bore of the cylinder is enlarged down to an abrupt shoulder, 17, forming a stuffing-box, into the lower circumferential corner of which a leather packing-ring, 18, is forced by an iron follower-ring, 19.
20 represents packing of any fibrous mate rial, and 21 is the gland provided with cars 22, perforated to receive bolts 23, which also pass through fixed ears on the cylinder to bind the gland down upon the packing 20, this packing upon the follower 19, the follower upon the leather packing 18, and the packing 18 upon the shoulder 17. As there is no frictional wear upon the packing 18 it may be made a complete ring capable to retain itself in shape when removed, while if it were fibrous material it would fall apart upon removal and occasion inconvenience, especially when done down in a well. The packing 20 is subject to frictional wear by every move of the plunger, and it is necessary to make it of fibrous material in order that alittle new packing at a disconnect the piston-rod 15 from the handlever 24, remove the nuts from the two bolts 23, and then draw out the piston and plunger with all parts contained in the stuffing-box. To thus remove all the works of the pump and to replace them requires the use of no tools down in the well, except a single wrench for the two nuts on bolts 23.
In drawing the piston up for-removal its packing ring 13, being necessarily of soft material-such as leather or rubber-will spring out into the openings of the pipes 7 and 8 and catch againt the upper edges thereof when these openings are made circular and with square edges, as usual; and the third novelty of this invention consistsin making these openings 25 into the bore of the cylinder oblong lengthwise the cylinder, so that the same area of outlet may be had with less width of space for the packing to spring into, and in chamfering or rounding the corners 26 at the upper ends of the outlets, so that what little of the ring still does projcctinto the opening may be easily wedged back into place by the chamfered corners without injury to the packingring. The lower edges of the openings might also be rounded; but that is unnecessary, be cause the direction of the ring 18 causes it to drag freely over the said lower edges when being pushed in.
The fourth novel feature consists in adapting the discharge-pipe and the air-chamber to serve as a frame to connect the cylinder with the standard, and thereby support all the parts within the well. is cored out to form two tubes in one piece. Through the central tube or bore of the standard the piston-rod 15 plays freely. The other tube constitutes the spout 28, which is neatly curved to give free passage to the water. The discharge-pipe 7 is first to be screwed into the lower end of the spout-tube 28. Then the cylinder is to be screwed upon the lower end of pipe 7. The pipe 8 has a long thread upon its upper end, far onto which a nut, 80, is first screwed. Then the end is passed up through a free hole in the base-plate 29 of the standard. Then the lower end of the pipe 8 is to be screwed into the cylinder. Now screw the nut 30 up against the plate 29. Then screw another nut, 31, down on the pipe to bear on top of the plate. Between the nuts 30 and 31 the plate 29 may be adjusted to bring the parts below into the desired linear relation with the standard 27, and'thus rigidly bound the pipes 7 and 8 connect the cylinder with the standard and serve as a frame for that purpose. By screwing a cap, 32, upon the pipe 8 the same is made an air-chamber for the cylinder below. This arrangement of an air-chamber has many advantages over the common cast airchamber besides that of cheapness, among which are the following: Foreign substances are frequently drawn into a pump and become lodged in the air-chamber, clogging it, and diflicult to be removed. By unscrewing the cap 32 such matters may be instantly forced To this end the standard 27 i by the pump not only out of the airchamber, but out of the well, where they cannot further interfere with the pump. This pipe 8 may also be used as a point of attachment in case it were desirable to pump two streams at once. I have shown the standard 27 as comprising two tubes webbed together as one piece; but it is evident that the same result could be produced, though not so simply, by making the spout as a separate pipe from the standard. and it might be secured to the base-plate 29 by check-nuts, like the pipe 8. A portion of the advantages of the construction described would be obtained if the connections 7 and 8 between cylinder and standard were more solid rods.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. The combination of a pump-cylinder having an enlgrged bore at its upper end terminating in an abrupt shoulder and forming a stuffingbox, a piston having a head fitted to the said bore, a plunger of about one-half the cross-sectional area of the piston and secured to the piston, a packing-ring in one piece of material fitted to the lower circumferential corner of the said stuffing-box and part way up its sides, a metallic ring fitting loosely around the plunger and closely above and within the said packing-ring and conically dished in its upper side, fibrous packing material located around the plunger and above the said metallic ring and packing-ring, a gland conically dished on its lower side located above the said fibrous packing and provided with perforated ears, and screw bolts removably connecting the said ears with the pump-cylinder, substantially as shown and described.
2. The combination of a pump-cylinder, a standard provided with a base-flange, a pipe screwed at one end into the said cylinder and screwed at the other end into the said flange and rigidly connecting the two, a second pipe screwed into the cylinder at the opposite side thereof to the first-named pipe and screw threaded along its other end and passing freely through a hole in the said flange to open air above and serving as an air-chamber to the cylinder below, and two nuts screwed upon the said second pipe, one above and the other below the said base-flange, substantially as shown and described, whereby the second pipe may be adjusted to the distance between the cylinder and flange as rigidly fixed by the first pipe, the two pipes thus constituting a frame to support the cylinderin line with the standard, and whereby the second pipe constitutes an air-chamber which is accessible at the top of the well.
3. The combination of a pump-cylinder adapted to be located down in a well, a pumpstandard adapted to be located at the top of the well and provided with a base-flange, a pipe to serve as an air-chamber,adapted to be screwed down into the said cylinder and provided with a long screw-thread along its upper IIS end, and-two nuts and a cap screwed upon the. ard, and two screw-nuts, 30 and 31, threaded said long screw, substantially as shown and upon the connection 8, the one below the said described. portion of the standard and the other above 4. The combination of the pump-cylinder 5, it, substantially as shownand described. '5 a pump-standard, 27, the connection 7 ,screwed In testimony whereof I affix my signature in 15 at one end into the cylinder and at the other presence of two witnesses.
end secured to the standard,the connection 8, HERBERT M. LOURIE. screwed at one end into the cylinder and Witnesses: screw-threaded along its other end and pass- J. F. SMITH,
:0 ing freely through a portion of the said stand- NANNIE M. SMITH.