US670868A - Pump. - Google Patents

Description

No. 670,868.. f Patented Mar. 26,` |90| P. J. BUDE. A

PUMP.

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Patented Mar. 26, |90I. P. .1. Bong.

PUMP.

(Application filed Oct. 2B, 1898.,

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UNrrhn STATES VPATENT rrrc".

PETER J. RODE, OF S'l. LOUIS, MISSOURI, ASSIGNOR OF ONE-EIGll'lI-l TO WILLIAM SCHMERMUND, OF SAME PLAGE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 670,868, dated March 26, 1901.

Application led October 28, 1898. Serial No. 694,846. (No model.)

To all whom t may concern:

Be it known that I, PETER J. BODE, of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Pumps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in pumps; and it consists in the novel arrangement, construction, and combination of parts, as will be more fully hereinafter described, and set forth in the claims.

The object of this invention is to construct a pump of the class used for dredging whereby any and all classes of coarse as well as fine material are received by its suction and smoothly discharged therethrough withoutinjuring the valves and plunger in the least, which is an important advantage over the present pumps now in use. i

Another advantage is that the material when received in the pump-chamber is discharged downwardly or at a point lower than the suction-pipe, and in connection with the force of the plunger its own gravity aids in its discharge, preventing any of the material communicating with the plunger.

Referring to the drawings, Figure l is a vertical sectional View of my complete pump, showing the entire construction of its valves, plunger, 85e., in operative form. Fig. 2 is a vertical sectional view of` the upper portion of the pump and its plunger, showing the mechanism by which said plunger is operated and also the supports for said mechanism. Fig. 3 is a horizontal sectional view of the pump, taken on the line o, d of Fig. l, showing the width of the discharge-passage. Fig. 4 is a perspective View, to a small scale, of the discharge-pipe elbow. Fig. 5 is a top plan view with parts in section, showing my invention placed in pairs and its connection to the suction and discharge pipes and also showing a part of the operating mechanism. Fig. 6 is a vertical sectional View of a portion of a modiied Aform of discharge-valve which is designed to be used in pumps only for dredging sand and discharging the sand upon barges. This is used Where the pump is placed higher than the barge.

In the drawings, l indicates my complete invention, which consists ofa receiving-chamber 2, having a sideward extension 3, which acts as a valvechest 4, having its end provided with a flange 5. In this chestis placed a pipe 6, having a flange 7 to correspond with the flange 5, and to this pipe is connected a pipe 8, also provided with a flange 9, these three flanges being provided with suitable packing and all held tightly together by means of bolts l0 passed therethrough. The pipes 6 and 8 are each formed out of center of the flanges and so constructed as to rest upon the lower surface of the valvechest and allowing a space ll between the top of the valvechest and the pipe in which is adapted to operate the valve mechanism, which will be fully hereinafter described and set forth.

The top of the receiving-chan1ber is provided with a flange l2 and at its bottom with a flange 13, by which said pump is secured and held to the floor or foundation. In the chamber is an inclined partition 14., which terminates in an opening 15, formed in said chamber at the lowest point of the inclined partition le. This hole or opening 15 is eX- tended the entire width of said receivingchamber and is provided with a iiat face or contact-surface 16, formed with a flange 17, to which a valve-seat casting 18 is securely bolted. It will be observed that the valveseat casting corresponds in angle with the partition 14, and its outer su rface 19 or valve seat is also at an angle. i

In the receiving-chamber on a line with the suction-valve is a hand-hole 20, provided with a suitable cover, and is used for cleaning said chamber in case of' obstructions and for repairing in case of breakage.

'Upon the receiving-chamber 2 is mounted and firmly secured the Working barrel 2l, having its upper portion provided with a larger bore 22 for the insertion of a gland 23 and packing 24, which rests upon a shoulder 25, formed on the inside ot' said barrel, over which is also placed a rubber or leather packingring 26. In this barrel 2l operates the plun- .1 nl Hall ger 27, having its upper inner end provided with a collar 2S, on which is firmly and securely bolted a nut 29, in which are double spiral screw-threads 30 of large size, in which operates the screw or spiral 3l.

In the flange 32 of the barrel 2l is firmly secured two uprights or guide-rods 33, which extend upwardly a distance suitable for the highest point of the upward movement. of the plunger, which is guided by lugs or ears 34, forming a part of the plunger, and are provided with holes 35, which iit the rods 33. (See Figs. l and 2.) The gland 23 is suitably bolted to the flange 32 by bolts 36 or otherwise. i

Upon the uppersurface of pipe 6 are formed ears 37, provided with elongated slots 38, which are on a slight incline, and in these slots operate a shaft 39, which carries a valve 4U, suitably secured thereto, and said valve being bent at the hinge portion so as to provide a place for the adaption of an arm 4l, in which is a cup-shaped opening, in which rests a rod of the diaphragm hereinafter described. Upon the top of the pipe 6 is securely bolted a spring 42, and its free or unfastened end comes in contact with the under side of the arm 4l, keeping it pressed upward.

To the top or upper part of the valve-chest is secured a pipe 43, and upon the pipe 43 is mounted a diaphragm-casing 44, composed of two parts, the upper part being provided with a number of holes, through which air is adapted to pass. Between the halves of the casing is placed and held a diaphragm 45, of leather or rubber, and is held in the center between two plates 46, which are carried by the diaphragm-plunger 47 and held thereto by nuts or other means. The intention of the casing 44, containing the leather or rubber diaphragm 45, plunger 47, and its pipe connection to the valve-chest, is for the purpose of equalizin g the vibration of the valve 40 during the upstroke of the plunger and to sufficiently aid in opening the valve, so as to a1- low foreign material to enter the receivingchamber, which, as a rule, is probably fifty to seventy-five per cent. of the area of the suction-pipe, such as rocks, gravel, sticks, boulders, &c. It is a Well-known fact that pumpvalves held in place by hinges would vibrate to such extent as to prevent material such as mentioned from freely passing said valve. The explanation of the use of the diaphragm is as follows: After the discharge-valve has closed, the pu mp,owing to the upstroke ofthe plunger, produces avacuum in the receivingchamber and up into the lower space of the leather or rubber diaphragm-casing 44. The atmospheric pressure is herewith utilized on the upper surface of the diaphragm, which presses thereon, and said pressu re ascertained is exerted through the rod of said plunger 47, at its lowest end, which is in communication with the arm 4l, located on the valve 40, and in this manner the pressure will aid in raising said valve. When the plunger 27 begins to descend and the entire interior of the pump is filled with water, there will be a pres'- sure produced, and therefore the vacuum is destroyed until the next upstroke ofthe plunger, when such vacuum is produced. The pressure will also exert its power in the lower space of the diaphragm-chamber, which has .then a tendency to relieve the rod of its action, and it will therefore allow the spring 42 to exert its power to help to close the suctionvalve 40 quickly, so as to avoid what is termed valve-leakage as much as possible. Another feat-ure is that in streams where line sand only is pumped up, the thumb-screw 48 (seen on the outside and on the rod 47 of the diaphragm and its plunger) can' be screwed down onto said diaphragm-casing, so as to avoid the downstroke of said diaphragm, it being when the plunger and diaphragm are raised high up that the suction-valve will have its natural sway.

On the working barrel 2l there are placed pipes 49, Valves 50, and Ts 5l for a so-termed flush-pipe, the pipe connections communicating from said working barrel to the valvechambers, its purpose being to drain and carry away such water and air as might lodge in the top of the working barrel 2l around the plunger. This water is conveyed thro ugh the piping down into the valve-ch est 4 at the point behind the suction-valve to wash away material that might lodge therein. The air is allowed to escape through the pipe 52 by means of a check-valve formed in its elbow.

The construction of the discharge-valve (shown in Figs. l, 3, and 5) shows said valve on a cylindrical receiving-chamber opposite the suction-Valve, but a little to one side and in communication with the inclined bottom. This construction is necessary to raise material such as lead, copper, or iron ore a certain height above the pump by means of the Iiow and pressure of water, which is provided with a fast current. Over this dischargevalve and valve-seat is placed a casing 53, secured to the pump in any desirable manner and made perfectly air and water tight and provided at its top with a hand-hole 54, duly provided with a cover 55. To the bottom of the casing 53 is secured the dischargepipe 56, having its contact end, by which it is in communication with said casing, hoppershaped, (see particularly Fig. 4,) and is secured thereto by lianges 57, formed thereon. This discharge-pipe 56 is reduced in size to one-fourth the area of the plunger, as is shown in Figs. l and 5, and planned in construction (see Fig. 5) to avoid unnecessary elbows and Ts in the discharge-pipe of the pump where two are placed together, as well as on the suction end. The intention of this is to avoid one stream or" one pump acting against the other, it being that they are single acting each.

The pumps are preferably operated in pairs, as will be seen by referring to Fig. 5, and are placed between or under standards 60, which are securely fastened to the iioor or ground in any desirable manner. These uprights IIO IIS

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have the top horizontal and upon this formed a bearing Gl, and in this bearing operates the screw 3l, which is provided with a collar 62, which bears against the under surface of the bearing 61, and upon said bearing and secured to the screw 3l is a toothed wheel 63, provided with a collar (la, upon which rests a brace 65, which fits over the top end of said screw 81, bracing the same, and securely bolted to the uprights. rlhis toothed wheel 63 is operated by a rack-bar 66, provided with a liange on each side of the teeth, which acts as a guide and prevents said rack from becoming disconnected from the wheel. 'lhe bar 66 is held in place by means of braces 67, firmly secured to the uprights. The one rackbar comes in communication with the wheels on each pump, and when adjusted the bar by its sweep backward and forward operates both pumps, one in the act of suction and the other discharging, and vice versa. This rod is operated in any desirable manner from any part of machinery, which I deem unnecessary to show and describe.

By referring to Fig. l it will be seen that the receiving-valve and its pipe are placed at the extreme height of the receiving-chamber and low enough so that when the plunger of the pump is at the lowest point of its stroke it leaves an open space, or, in other words, so many cubic inches or feet to receive coarse material, which has a tendency, being heavier than water, to fall on the inclined plane, and at the same time it will allow the valve to have a full swing in order to open Wide into said receiving-chamber.

My experiments have shown that the proper plan to pursue is to let water and other articles that are to be handled come in at the highest point and allow it to descend on an incline toward an outlet lower than the inlet, so as to leave the valves easier or more free to act until it presses through such valves and into the discharge-pipe, it being found that the material is very easily handled after it has left the valves by means of a fast current produced by the downstroke of the plunger.

The motion for operating the pump as described by using a spiral and nut and horizontal rack-bar is adapted for special purposes only. The intention is for pumps to be placed in the hold of a vessel or barge which would bring the pump nearer to the level of the water-surface of a stream, which is a veryim portant matter in saving space in a small craft. It is used in places Where there is little room above the pump, but plenty of space to work the horizontal rack-bar.

In places where I have unlimited space I desire to work the pump in the ordinary manner by having a cross-head attached to the pump-plunger and work it in pump style.

I may on some occasions place the discharge-valve of the pump at the bottom of the receiving-chamber, as shown in Fig. 6. This style I use where it is not necessary to force the water or material to any particular place, and it is placed on a paige or like device, and the sand is allowed to be discharged on the surface of the barge.

I'Iaving fully described my in vention,'what I claim, and desire to secure by Letters Patent, is-

l. In a pump of the class described, constructed to handle dredging material, a Working barrel mounted upon a receiving-chamber, a plunger operating in said Working barrel, and a means for propelling said plunger, a suction-valve placed in a chamber'formed on the upper side of said receiving-chamber, and a discharge-valve placed in a dischargechamber formed on the lower side of said receiving-chamber, said valves arranged opposite one another and their chambers connected by an inclined bottom, a diaphragm mechanism communicated with the suctionvalve for aiding its operation, said diaphragm mechanism operated by atmospheric pressure, substantially as shown and for the purpose set forth.

2. In a pump provided with a base which acts as the receiving-chamber, a working barrel mounted upon said receiving-chamber, said chamber provided with a suction-valve chamber at its highest point, and a dischargevalve opening at its lower side, an inclined bottom formed in said chamber, its highest point heilig a short distance below the receiving or 'suction chamber, and its lowest end communicating with the discharge-opening, avalve-seat casting having an inclined bottom secured to said casing communicating with the bottom or inclined partition forming an extension thereto, a casing placed over said valve-seat, and a hopper-shaped dischargepipe secured to the under side of said casing, a valve placed upon said valve-seat casting and operating in said casting, a suction-pipe placed in said receiving valve chamber, formed as a casting provided with a ange which is secured to the flange of the chamber, and the suction-pipe leading therefrom, a valve located on said suction-pipe casting, and provided with an arm, said arm communicating with a diaphragm mechanism, a plunger operating in a working barrel, an operating mechanism operating said plunger, substantially as set forth.

3. In a pump composed of a working barrel mounted upon a receiving-chamber, a plunger operating in said Working barrel, a rack and screw 'mechanism operating said plunger by means of a nut formed in said lunffer and held and guided b 7rods a suc-` tion pipe and valve located at the upper side of said receiving-chamber and a discharge pipe and valve located on the opposite lower side of said chamber, an inclined .bottom or partition formed inside said receiving-chamber, below the receiving or suction valve, and above the discharge-pipe, yet communieating therewith, and so constructed to allow IOO IOS

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the material to always fall away from the stantially as shown and for the prpose set valves, a diaphragm mechanism connected to forth. Io thesuction-chamber and eomrnunicatingwith In testimony whereof I affix my signature the Valve, pipe connections provided with in the presence of two witnesses.

Valves connecting said valve-chambers with PETER J. BODE. the working barrel, an angular pipe eonnec- Witnesses.:v tion, connecting said suction-pipes to the ALFRED A. EICKS,

main, and the discharge-pipe to its main,sub B. PILLMAN.

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