US1468897A - Pump - Google Patents

Description

Sept. 25 9 1923.

PUMP

slimi l- Sept. 25 1923.

J. P. BEAUPRE l PUMP i Filed Nov. et, 1929' 3 Sheets-Sheet :s

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J? 68 63 J2 M .7 M .93 37I l Jair-4M g J3 f3 ffl 72 41 ,5 73 j. f JJ 71,0 4 me/Mofa WmEsFSy/fm @Hornung Patented sept. 25,1 1923.

JoHN r. BEAUPR, or Borra, rionrnnanssisnon or cnn-mman To GEORGE n. SMILEY, or La JUNra'coLonAno, ann onnrnmnmo :animar n. BEAUPR, kor

BUTTE, MONTANA.

PUMP.

vApplication led November 4, 1920. Serial-No. 421,738. i

T 0 all whom t may concern.'

Be it known that I, JOHN P. BnAUrR, a citizen of the United States, residing at Butte, in the county of Silver Bow, State of Montana, have invented certain new and useful Improvements in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to Vmake and use the same.V Y

This invention relates to pumps, and mor especially to those which are double-acting; and the broad object of the same isto improve the construction of such a pumpV so as to adapt itparticularly for handling liquids of various kinds by taking them from a. tank car or other source and delivering them to points of storage or points where receptacles lare to be filled.

One feature of the invention consists in details of construction whereby the pump is adapted to be used for one liquid, and then for another Without first cleaning and washing out its interior, and without even stopping the action of the pump. This is accomplished by having the inlet admit the liquid to a. manifold which is in a plane higher than the pumping barrel or cylinder, and having the latter deliver the-liquid to an outlet manifold which is in a lower plane than said barriel, and providing means whereby connection with the source of supply may be cut off and air admitted so that temporarily the pump works on air while the first liquid is draining out, and then the air is cut olf and the second liquid admitted.

Another feature of the invention is its adaptability for repumping. In other words, after having pumped liquid from the source of supply to a storage tank, it is possible with this structure to pump the liquid back from the storage tank and deliver it at the point of filling. Means are provided whereby when the pump is used in this way the liquid still flows in at the high side and out at the low side for draining purposes as mentioned above.

Another feature of the invention lies in the provision of a by-pass pipe and a springpressed relief valve therein, establishingconnection between the outlet and inlet mani- A folds so that, in case resistance to the outlet should occur, the relief valve will open and liquid will flow back through the byplunger.

pass pipe'without injury to the structure. Manifestly this relief takes place whether the device is pumping direct from the tank to storage or filling, or pumping back from vstorage to filling. Means are present to adjust the tension of the spring which controls the relief valve, so that it may be set to open at various pressures..y

The pump described herein and shown in the drawings is of small size capable of beingv operated by Swinging a lever and re ciprocatinga plunger'within the pump barrel in strokes of varying length, and a pump of this size would be equipped with aboutl the number lof outlets and inlets here shown. It is obvious, however, that other means for reciprocatingv the plunger might be employed and that the entire structure could be built on a larger scale without departing from the spirit of the invention Referring 4to the said drawings:

Figure l is a general perspective view of this pump as seenfrom its inner end, one of the guides being swung aside and the link being disconnected from the fork-arms at the lower end of the operating lever.

f Figure 2 is an elevation of the inlet side of the pump with one head removed and shown in perspective and the othervhead shown in section. Y y

Figure 3 is an elevation of the outlet side of the pump with the opposite head shown in section, and this view shows the driving mechanism and its connection with the Figure 4 is an elevation'of the'pump looking at its inner end and showing the connections which are employed forrepumping. Figure 5 is a section through the body casting and both heads, on an oblique-line as indicated at 5 5 in Figure 4. 't

Figure 6 is an enlarged sectional detail showing the connection between the cross .head and the'stem of the plunger.V

Figure 7 is a detail longitudinal .section through the regulating valve.

A base 1 has seat/s2, 3, and-4 upon the first of which is mounted a pedestal 5 while the other two seats 3 and 4 sustain legs or standards 6 and 7 which in turn support the pump. The pedestal supportsthe outer ends or guides S, Vtheir .innerendsbeing vpivoted 'at 9 to blocks 10 on one head of the pump, and one of these guides being shown in Figure l as swung aside.V Intheguides are slidably mounted shoes 11 having bearings for trunnions 12 of a block 13 which is bored with a longitudinal passage 14 for the stem of the pump plunger, and the passage is counterbored at its ends as at 15. lVithin each socket thus produced a coil spring 16 is mounted on the stein, held by a nut 17 and a jam nut 18, and thereby the stem is connected with the cross-head block 13 in such manner as to permit slight movement laterally and longitudinally.

For reciprocating 'the stem and plunger, any suitable mechanism may be employed to connect the cross-head block with a source of power, mechanically, manually or otherwise. As shown herein a hand lever 2O is forked at its lower end, its fork arms 22 having bearings for the trunnions 12 and extending below them in fingers 23, these fingers passing astride a block 24 to which they are pivoted as at 25, and the block being supported at the outer end of a link 26 whose inner end is pivoted at 27 to the nearest head of the pump. Thus by manually reciprocating the lever, 20, the crosshead is moved to and fro within the guides and the stem is reciprocated through a path depending on the extent to which the lever isswung. However, it is quite obvious that other means might be employed Vfor reciprocating the cross-head and driving The pump proper is of the double-acting type, and comprises a body 30 and two heads 31 and 32. The body is bored to produce a pump barrel or cylinder 33 about four inches in diameter, an inlet manifold 34 at one side and an outlet manifold at the other side,these being about three inches in diameter, and the casting which is bored to form these elementsV is oval as perhaps best seen in lFigure 4 and supportedA upon the standards 6 and 7 with its major axis oblique so `that the inletl manifold is higher than the cylinder and the outlet manifold is lower. lVithin the cylinder or barrel works the piston or plunger 36 which is by preference of double-cone formation ap- Y propriately packed and removably held by nuts 37 on the piston rod or stem 38 referred t0 above, and the movement of the cross-head reciprocates this rod and plunger as will be understood.

Each end of the pump body casting is provided with `a boss 40 around the end of its central bore or cylinder, while the ends of the other bores are counter-bored as shown at 41, and the casting also carries a peripheral vseries of stud bolts 42. The inner head 31 is applied to the inner end of the cas'ting and held by nuts on said bolts, and this head carries the blocks 10 referred to above, and between them is provided with an opening 48 for the passage of the stem. This head is also provided with openings 44 and 45 directly alined Ywith the manifolds 34 and 35 and normally closed by plugs 43 which may be removed to inspect the valves yet to be described. The outer head 32 is mounted on the outer end of the casting by 'means of similar stud bolts and nuts, but it has only the openings 44 and 45 and 'the plugs for removably closing them. vOn their inner sides the heads are provided with chambers 54, 55, and 58 respectively oppo-V site the manifolds 34 and 35 and the cylinder or barrel 33, the chamber 58 in the inner head 31 having a boss v51 which affords packing for the stem 38; and the several chambers are connected by passages 52 and 53. The intermediate chamber 58 is sumciently large to enclose the boss 40 on the body casting, while each of the other chambers is of sufficient size to enclose a valve which is attached to the body casting before the corresponding head is applied, the valves within the chambers 54 at the ends of the inlet manifold being intake valves opening under suction from the manifold toward the cylinder, and those in the other chambers 55 being discharge valves opening under pressure into the outlet manifold as will appear below; and when a plug 43 is removed, inspection of the valve beneath it is permitted, whereas the valve can be reached for repair or replacement by removing the head which covers it.

The intake or suction valve has a cage-like casing rabbeted at its inner end at 61 to lit the counter-bore 41, and provided at this end with a spider 62 having a central guide opening for the stem 63 which carries the valve disk 64. The outer end of the casing isV closed as at 65 except for a central opening in which moves the other end of the stem, and an expansive spring 66 is coiled around 'the stem between this end 65 and the disk 64, with the result that the valve is normally pressed inward against its seat but may be` drawn open when the suction set up by the plunger is suliicient.4 The inliowing liquid then passes through the spider 62, under the disk 64 which is now off its seat, and out the open .side 67 of the casing into the chamber 54 of the head, whence it flows along the passage 52 into. t-he chamber 58, and eventually along the other passage 53 into the chamber 55 and lthe outlet manifold. The casings of these valves are held in place against the ends of the casting by means of Anv expansive spring 76 is coiled around the' sterny between the disk and the inner spider."

and normally presses the disk outward against its seat. The wall oll the casing each pipe is provided with a cock 'ori hand valve 81. Also there an additional andV preferably smaller opening Vinto this Amani- `fold 'from the air, controlled by a valve 82. Through the upper wall of the inlet manii'old are four openings for pipes 33, each having a cock or'valveSl, and the use or' these will be explained later. Through the cuter side wall of the outlet manifold 35 are four openings 'for pipes 85 leadingto storage, and respectively controlled b-y cocksV or valves S6; and through the bottom wall of this manifold are `l'our openings for pipes 8T constituting outlets to iilling, thesebeing controlled by cocks or valves 88. The pipe lines are not shownV which lead from theY source or supply to tlie'purnp and from the pump to the points where the liquid' is to be delivered, and in certain of the views some of the cocks or valves are omitted Jfor the sake of clearness. f s

A byepass pipe leads from a point 94 in the upper wall of the inlet manifold 34, through a valve, across the top of the castf ing,` and down to a point where it opens through the upper wall of and into the outlet manifold 35; and the construction of said valve is best seen in Figure 7.V It has an L-shaped casing 91 into whose ootthe pipe leads from the point 9i upward, and a valve disk 92 borne toward its seat along the shank of the L-shaped casing and toward the p-ipe leading to the point 91, by a spring 93 coiled on the ralve stem between its disk and a spider 96, so that normally the valve closes to prevent the flow ot luidfrom the inletto the outlet side of the pump, but it will yield under excess pressure to permit fluid toY set back it necessary, the yielding occurring when the back-pressure exceeds the power of the spring 93. A second and stronger spring 103 bears against a shoulder 97 on the valve stein and is seated in a socket 107 inthe inner end oi a plug which stands along the axis ofthe shank or" said casing'near its angle, and into said angle is screwed a gland 101 through which is screwed a stem 102 havning` this/wheel the stem may be advanced nto socket 106 in the outer end of the plug 100, and the latter advanced to put tension ing hand wheel 104 on its outer end. VBy

ontlie spring 103 ladditional to that nor-Y mally exertedby the springi93. By this means the-resistance Vto the openingo'l:` the,

will. A Ypressure gauge 108 communicates with 'the interior vofthe casing 91 forward of its valve, to assist the operator in adjustingV Vby-pasfs valve may be manually adjusted at l' the point at which the valve may be set toV open. The by-pass pipe QOwhich-puts this valve casing in communication with.v the two manifolds remains constantly on the and needs no cock or hand valve;

Pump

With one or more of the inlet pipes 80 connected withV atank car or other source of supply. and its or-their valves 81 Yopened andV the air valve 82 closed, one or more of the outlets 85 can be connected to storage tanksandtheir valves'openedl` or one o-rY l filling purposes by A opening its 'or their valves 88s. YNowwhen'the plunger is reciprocated,fit acts asa'piston moving within the cylinder 33.

by dra-wnv into theY intake manifold through the inlet pipe or pipes and'follows the plunger in its course along the barrel orrcyli'nder, and, on lits return this liquid ris forced into the outlet manifold and from it to the point desired-a similar action taking place at the lother side of the plunger as will be clearly understood. as back-pressurein the outlet pipe, resistance to the flow orP liquid from the pump" should be set up, the liquid within the outletmanifold will pass up the ley-pass pipe Vand through the bypass. valve, unseating the latter when Vthe back-pressure exceeds the tension to which the spring ha'sbeen adjusted. Thus ifheavy oil is to berpumped to a considerable height and delivered into If for any'reason, such l p On its stroke in one direction, it'closes one inlet Vvalve and opens the a storage tank, it'will be necessary for the 'another `liquid such as gasoline, it becomes desirable that all or substantially all the oil within the pump shall befexhausted before any gasoline-is let in, and yet in order to save time it is not desirable to wash out the pump or even to interrupt its action. The

inletiscut oilE by closing the valves 81, and theair valve 82 is opened, so thatcontinued' reciprocations of the plunger ,cause theV pumprto take air. into the intake manifold side of the casting. This admission ofair replaces the oil in the barrel or cylinder, and

Y whichis'shown and described as on the high iso VXithout even stopping the' motion of the structure, one or'more of the inlet pipes can now be connected with a source Where gasoline will be supplied and theV appropriate outlet pipe or pipes with thepoint or points to which the gasoline is to be delivered. t

Another fea-ture of the invention is the adaptability of the pump for use in drawing liquid back from storage and deliif'ering it out the filling pipes, or repumping as perhaps best shown inl Figure il.V For this purpose a pipe 110 is shown as connected with a T-eoupling lll mounted on one of the outlet pipes 85, beyond its valve 86, and continued upward as at 87 across the top of the casting, and connected with the valve 84 of one of the pipes S3 opening into the top of the inlet manifold; and, although not so shown, all the pipes 85 Could thus be connected with the pipes 83. NewV With the valves 8G closed and the valves 88 and Sil opened, the liquid is drawn back through the pipe 110 and admitted into the pipe 83 to be discharged through valve 88 to arpoint of Vfilling-thus passing back around the u pump to the inlet manifold, and thence to the outlet manifold throughV some or all of these applied pipes under control of the valvesV mentioned. It Will be clear that by this arrangement the liquid follows the same course through the pump as when pumping direct in the mannerV described above, and therefore. the by-pass pipe and its valve will function as above described to overcome back pressure or unusual resistance to the flow of the liquid;

That is claimed is:

l. A pump comprising a substantially horizontal barrel, an inlet Vchamber at a higher level than the barrel and an outlet chamber at a lowenlefel, Valves connecting the respective chambers with the barrel, a. .'alved inlet pipe for liquid 'leading into the inlet chamber, means for admittingair to this chamber when desired. and a plunger reciprocating Within seid barrel..

Q. it pump Whose body casting is formed with a barrel, an inlet manifold alongside Aand at a higher level than the barrel, and

an outlet manifold along the opposite side of and at a lower levelY than the barrel, valves connecting' the manifolds respectivelyv with said barrel, liquid inlet pipes leading intoy the inletY manifold and provided with control valves, an air inlet pipe also lea ding into this manifold and provided with a control valve, discharge pipesv leading out of the outlet manifoldv and proif'ided with control valves, and a plunger reeiprocated Within saidV barrel. Y

with a unp Whose body casting is formed Y rel, an inletv manifold. alongside and at a. higher level than the'barrel and an outlet manifold along the opposite sideY of and at a lower level than the barrel, inlet and outlet valves connecting both ends of the manifolds respectivelyvv with said barrel, liquid inlet pipes leading into the inlet manifold provided with control valves, an air inlet pipe also leading into this mauifold and provided with a control valve, dis- V pipes leading out-of the outlet mani fold and provided with con-trol valves, and a double-ac i plunger reciprocated within saidA barrel. Y

ln a pump, the combination with a body casting cored horizontally to produce a barrel, an inlet manifold alongside of and at a higher level than the barrel, and an outlet manifold along" the other side of and at a lower level than the barrel, heads mounted onv opposite, ends of said casting and each containing chambers registering with itsy rcspectire corings andconununirating with eachother, Yalv-es in the several chambers opening'y from theY inlet manifold toward thebarrel and from the barrel-toward theV outlet manifold, a plunger within the barrel, its stein extending through one head,

and driving means for reciprocating the respective corings and communicating withA each other, valves in the Vseveral chambers.

opening from the inlet manifoldY towardr the barrel and from the barrel toward the outlet manifold, a plungerwithin the barrel, its stem extending through one head,V

and driving means for reciprocating the stem; of means for admitting liquid to the inlet rnanifold anddelivering it fromy the outlety control, means-for. admitting air to the inlet manifold to drain the liquidV from the pump, a by-pass pipel connecting the manifolds, and a spring-closed relief valve therein, the Whole for action substantiallyT as described.

'ln testimony whereof, I affix my signalture, in the'preseneeY of tivo Witnesses.. Y

Y Y JOHN P. BEAUPRE.

ll/itnesses R. XV., Booms, Gnu-ALDInuv SMrr'H.

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