US1832620A

US1832620A - Pump

Info

Publication number: US1832620A
Application number: US291236A
Authority: US
Inventors: Charles D Cook; John R Townsend
Original assignee: JOHNSON MOTOR Co
Current assignee: JOHNSON MOTOR Co
Priority date: 1928-07-09
Filing date: 1928-07-09
Publication date: 1931-11-17
Anticipated expiration: 1948-11-17

Description

Nov. 17, 1931. c. D. cooK ET AL 1,832,620

PUMP

Filed July 9,A 1928 2 Sheets-Sheet l HIV m Nov. 17, 1931.

c. D. cooKv ET AL 2 Sheets-Sheet 2 Patented Nov. 1931 UNITED STATES PATENT OFFICE CHARLES D. COOK, OF NEW ORLEANS, LOUISIANA, AND JOHN R. TOWNSEND, OF LAKE BLUFF, ILLINOIS, ASSIGNORS TO yJOHNSON' MOTOR' COMPANY, 0F WAUKEGAN, ILLINOIS, A CORPORATION OF DELAWARE PUMP Application led. .Tuly 9,

Our invention relates to improvements in water pumping devices of the general class lshown in the co] 'iending application filed by Charles D. Cook, Serial No. 211,524, on August 8, 1027. prises a long tubular conduit provided with a water inlet at its base and a water discharge -at its top portlon. This conduit 1s preferably formed of light material such as sheet metal so as to provide a portable apparatus and this conduit, which is approximately eight or ten feet long, is provided at its upper portion with a relatively rigid support upon which is directly mounted a self-contained prime mover preferably in the form of an outboard motor and in general comprising a two-cycle double opposed motor of two or more cylinders, an adjacently disposed gasoline tank, a combined rope starter, flywheel magneto, a carburetor, a muiler, and other adjunctive devices whereby when the engine is started the prime mover may be continuously run for long periods of time without any connection to an outside source of fuel or an outside source of power. -The crank shaft of the motorl is provided with an extension shaft passing downwardly through the long tubular conduit and at the bottom of the shaft is provided with a rotary impeller or pump so that when operated, it will draw the water in through the lower portion of the tubular conduit, force it up through the tubular conduit, and discharge it from the outlet.

The objects of our presentinvention are to .improve the constructional details of this general type of pump.

The improvements set forth in our resent application include a novel means or circulating cooling water from the body of water contained in the longitudinal tube to the water jacket of the engine; the provision of automatic means for stopping the prime mover when the pump ceases to pump water in any volume or an insuflicient'volume upwardly through the longitudinal tube; the various features of constructional assembly whereby an economical, simple, and light type of portable pump apparatus is provided.

'lhesevand other objects and the improved This type of pump. com- 1928. Serial No. 291,236.

tail View of the automatic means for cuttingv out the spark in the gas engine when the water flowing through the longitudinal tube is insuiicient or utterly fails.

Referring now to the drawings in detail, our improved type of pump as shown in the illustrated embodiment, comprises a preferably cast iron base 2 provided with a threadf ed lower opening 4 adapted to detachably receive an extension foot if desired, and provided in addition with a plurality of angularly disposed webs 6 for strengthening the parts. The circular piece of the casting 2 is provided with any number of holes or perfor-ations 8 constituting water inlet openings for the base of the pump. This base 2 has detachably connected thereto as by means of screws 10 a preferably sheet metal casing 12 which encloses a circular metal casting 14 forming a frame or support for the pump proper and providing a pumping chamber. The pump proper comprises a hub portion 16 (sce Figure 4) provided with a central aperture 18 adapted to receive the pump shaft hereinafter described. In addition, the pump is formed with a plurality of radially extending vanes 20 which are preferably slightly dished or curved as at 22 at their outer ends. These vanes 20 are of considerable height as shown clearly in side view in Figure 2 and they rotate about the central shaft and Within a circular pumping chamber formed in the casting 14. This casting is provided with a plurality of vertically extending water defiecting blades 24 which curve from points 26 disposed close to the outer path of travel of the vanes 20 to points 28 preferably touching the inner wall of the sheet metal casing 12. rllhese vanes form with the body of the casting upwardly inclined and curved

water deflecting portions

30, 32, 34, and 36 which at the

high points

38, 40, 42, and 44 open in an upward direction into the chamber immediately above the pump rotor and connecting with the main body of the long tube of the pump.

ln order to better understand the construction and operation of the pump, it will be noted that as the pump is rotated by its shaft, the water will be drawn in through the inlet openings 8 into the lower chamber 46 and from there will be drawn upwardly through the opening see Figure 4) which opening is substantially concentric with the axis of the pump hub and thence into the central portion of the casting where this water will be thrown by the rotating blades 20 outwardly and thence up the

curved inclines

30, 32, 34, and 36 and discharged out through the

peripheral openings

38, 40, 42 and 44, which communicate with the upper pump chamber 52.

The pump vanes .20 are, on their under sides, rovided with upwardly inclined bottom e .ges 54 so as to sweep over an upwardly inclined wall 56. We prefer to form this wall by means of two opposed

sheet metal members

56 and 58 which converge in a wedgelilre construction to a point 60 opposite a shoulder 62 on the bottom of the edges of the vanes. 1n addition, the inner portions of the bottoms of the vanes are given a slight upward inclination to the central axis of the hub of the propeller. These two sheet metal portions are provided with laterally extending flanges 64 by which they are bolted by means of screws 66 to the basal ange of the casting 14. This casting is likewise provided with a lateral threaded bore in which a screw 68 passes to hold the sheet metal casing 12 in position.

As shown clearly in Figure 2 of the drawings, the central hub 16 of the propeller is provided with a central vertical bore of three diameters. The upper diameter 70 receives a cross pin 72 which passes through the shaft 74 hereinafter described. The diameter 76 of the hub 16 receives the lower end of the shaft 74 while the next smaller diameter 78 receives a screw or threaded bolt having convenient way of removing the shaft 7 4 from the propeller.

Shaft 74 passes upwardly through a bearing 81 hereinafter described mounted on the upper portion of the casting 14 and thence passes upwardly to the top of the longitudinal conduit. This longitudinal conduit is preferably formed of sheet material so as to provide a. light and portable structure. ln general it is of slightlyv tapering formation as shown at 83 being fastened to the upper portion of the casing 12 by means of rivets or other suitable fastening means 84. This tapering tube 83 continues upwardly to its top where it is fastened by means of other rivets 86 to a motor casting 88 of rigid and sturdy construction. This casting is provided for one side with a water discharge outlet 90 inwhich we mount a sleeve 92 in the nature of an elbow and in addition is provided at its top with a very rigid cylinder block 94 which is rigidly mounted on an upper elbow 96. ln addition the upper casting 88 is provided with an apertured pipe 98 substantially opposite the water discharge elbow 92 as hereinafter described. The cylinder block 94 is provided with a central bearing 100 in which fits a depending drive shaft 102 from the engine 104 of the outboard motor and the upper portion of shaft 74 is adapted to make a detachable connect-ion 106 with the engine shaft 102 so that when the outboard motor is'unbolted from the engine block 94 it may be instantly removed by means of the splined clutch connection 106 with the extension shaft 74. lVhile we are not restricted to the use of an outboard motor as being mounted on the engine block 94, we prefer this type of motor since it is light and portable in na? ture and is a self-contained power generating unit, not being dependent on any outside source for either electricity, fuel or other power generating medium such as a steam engine or an electric motor would be. As is well known in the art, an outboard motor is of the type used in driving propellers of light water driven vehicles and comprises the usual gasoline tank 108, the rope-starter 110 and the combined flywheel and magneto 112 together with the usual mutiier 114 and carburetor 116 and other adjunctive devices. Our invention contemplates the utilization of part of the water which is pumped into the long tubular conduit 83 as a means for cooling the water jacket of the motor 112 of the power plant. To this end, we propose to conducta portion of the water pumped into the conduit upwardly to the water jacket of the engine where it may be either discharged outside of the tubular conduit 83 or may be recirculated back. In the present instance we prefer to provide a circulatory system whereby the water may be re-used. In the present instance, the engine block 94 is provided with two substantially

vertical portions

118 and 120 through which this cooling water may be conducted to and from the water jacket of the engine. These bores are provided with -

nipples

122 and 124 which connect

pipes

126 and 128 respectively with the bores and hold the same in adjusted position. These pipes 126 and 128extend in spiral formation as shown in Figure 3, longitudinally of thc shaft T4 and the long conduit 83. The lower end of pipe 128 which is the water inlet pipe leading to the water jacket of the engine, terminates at a screen casing 130 surrounding a tubular casing 140 which in turn encloses and surrounds the eX- teiision shaft 7 4. This casing 140 is of sheet metal and connects at its upper end to the cylinder block 94 being held in position thereat in any suitable manner. The lower end of this easing 140 is held to the upper portion of the casting 14 by means ot a 'metal ring 142 held in place by means of suitable screws 144. The screen 130 surrounding the Ainner casing 140 is open at its sides and preferably closed at its lower portion or bottom. The water inlet pipe 128 communicates with the uppei' portion of the screen so that water taken into the screen passes into the pipe 128 andthence upwardly within the conducting` tube 82 to the water jacket of the engine through which it circulates and is then conducted downwardly through the water inlet pipe 126 which preferably passes along on the outside of the screen 130 and discharges into the upper portion of the housing 142 on top ot' the casting 14. This upper portion of the casting 14 is somewhat hollowed out to form an upper chamberA concentrically surrounding the lower portion of the shaft 74 and the lower portion of the chamber is formed by means of a plate 146 screwed to the under surface of the casting 14 as lat 148 and adapted to close the bottom portion of the chamber except for a relatively small opening 150 about the shaft 74. The central portion ol" the upstanding housing 142 on the casing 14 is threaded to receive a vertically disposed sleeve 152 which in turn is provided with a packed bearing 87 for the shaft T4. The opening 150 in the plate 146 forms a communication between the upper chamber 154 which con'm'iunicates with the water discharge pipe 126 and the inner pump chamber and this communication is effected `through the opening 150 of the plate and the largest bore 70 in the hub of the propeller a nd the upper `or top portion of the propeller just beneath the plate 146. In other words, waterin the chamber 154 passing down through the discharge pipe 126 will pass G through the opening 150 in plate 146 and thence will be forced outwardly by the rotatinel propelling vanes 20.

lt will be noticed that this rotation of the main propeller will create a substantial vacuum or vortex at .the hub 16 of the propeller which will likewise cause a perceptible vacuum in the upper chamber 154 and this in turn will cause the water to be pulled through the 'pipe 120 and in the same manner cause the water to be sucked in through the screen from the interior of the conduct 83. Thus by the rotation of the propeller vanes 20 a positive circulation of water from the interi or of the long pipe 83 is caused to flow through the screen 130 up the pipe 128 through the water jacket of the engine and hack downwardly through pipe 126 into the chamber 154 and thence-back into'the main proj'iellcr chamber.

An advantageous feature. of our present invention resides in the manner in which the conducting pipes 126 an-d 128 for the circupropeller vanes 20 rotate and force the water up lthe circular inclines 30, 32, 34,.a`nd 36, the water is given an upward rotating or swirling motion and it is found that by arranging the pipes spirally substantially in the manner indicated. although any other spiral arrangement may be equally availed of, that the circulation of this watei from the rotating blades through the

pipes

126 and 128 is greatly facilitated. I

In our present invent-ion, we provide means for controlling the prime mover as for instance by cutting out the ignition (although thc fuel supply may be equally as well controlled) when the pump ceases to force water upwardly through the long tubular conduit 83. Experience has shown that in cases where all the water is pumped up or in cases where the bottom of the pump becomes clogged with sand, sediment, or the l" like, the prime mover suoli as the gas engine might continue to function for long periods without having cooling water circulating through the water jacket and since this cooling water is taken from the pump as soon ais-delivered through the conduit '83, it is necessary to pi'OVidesOine automatic means for controlling the engine. To this end we provide in the form illustrated, a diaphragm 156 which is shown in Figure 5 of the drawings, mounted in a sleeve 98 in the. upper -portion of the conduit and is clamped in position by means of a closing cap 158 provided with a bore at its outer end through which passes a stem.160 having a head 162: This stem in tui'n is provlded intermediate its length with a threaded portion 164 to receive a collar 166 between which and the inner wall of the sleeve 158 the coiled compression spring' 168v is forcing' the rod 16() normally ,inwardly. The inner end of this rod is provided with elamping nuts which pass through the perforated diaphragm 156 and rigidly connect the rod thereto. Directly in the path of collar 166, we provide a contact il l) lia) izo

member 170 mounted in an insulating bushing 172 and having an electrical connector 174e to the ignition circuit. This contact 170 forms a ground contact in the Wellknown ignition circuit so that when the metal collar 166 is in Contact with the inner end of the contact 1?() the ignition circuit is grounded and hence no spark will be created in the ignition chambers.

.Since the electrical connections 'tor such a circuit are Welllrnown to those slrilledin the art., no details of such construction are given. The head 162 on the end of the rod 160 is slightly spaced in normal position as shown at 176 so that when the head 162 is pulled out against the tension of the spring 168 a hifurp cated clip 1*?8 may be inserted between this head and the outer end oij the sleeve 158 thereby to hold the metal collar 166 away from the contact 170 so that the ignition circuit is closed to permit sparking in the cylinder. This clip 178 is mounted on a chain 180 permanently connected to the adjacent portion of sleeve 156 and in the position shown it is most conveniently arranged so that when vrater is forced upwardly through the conduit 83 oie the long tubular portion of the pump, this Water will in normal operation press the diaphragm 156 outwardly thereby still further pressing the rod 166 still further outwardly so as to permit the clip 171'8 to drop by gravity so that subsequently when the Water ceases to be forced upwardly through conduit 8S, the spring i653 will be permitted to torce the collar 166 to the right and contact the contact 170 thereby ground the ignition circuit and stop the engine.

will thus he appreciated that in our present invention We have provided a very simple and practicable type of pump for removing the water `from manholes, the holds oi vessels or as a. hilge pump, or for removing the Water from excavations and the like and this pump is especially constructed to provide a light portable device and wherein the long tubular conduit 83 is oi? suiliciently small diameter so that it may be inserted downwardly into relatively small manholes or the liketo pump the Water upwardly and discharge it outside of the manhole. Another important advantage of our construction resides in the fact that although this pump is made of relatively light material such as sheet metal, the construction is such that the pump itself may rest upon its sturdily constructed bottom such for instance as the bottom et and the web 6 and this bottom is arranged so that although standing upon it, it Will not clog the inlet openings 8 so. that Water can freely pass into the bottom portion of the pump and will be iorced upwardly by means of the 'rotating propeller and discharged out through the upper elbow 92. Furthermore it will be appreciated that in spite of the fact that We provide a very light portable pump, the construction is such that the upper portion provides a very sturdy mounting or cylinder block on which a self-contained prime mover such .tor instance as an outboard motor, may be detachably mounted as by means of the usual type ci bolts which mount the prime movers of outboard motors on vertically depending shaft and propeller constructions.

Another advantageous feature of our present invention consists in the simple manner in 55 vvhich a portion o the Water is Withdrawn from the longitudinal conduit 83 and passed. to the Water jaclzet of the engine and in fact recirculated through the jacket and this construction includes the spiral arragement of the circulating pipes which do not arrest or impede the upwardly swirling 'Water de livered Jfrom the rotary pump. Furthermore by the arrangement of the inner tube 140 to enclose the longitudinal drive shaift 74;? We provide a concentric Water passage lor :tud: nally oi the main casing 83 which coin/i discharged column of Water and insu; from the central drive shaft Tl vvhereb bearings 81 and 10G for this separated irom the Water being pump Furthermore bythe provision olf automatically controlling the other prime mover and speciiicaiy means for cutting out the ignitfon when the supply oli pumped Water become-3 low or nil, vie have provided means ifo venting the overheating of the motor the tact that no circulating Water c he passed through its jacket. im

l/Vhile the pump as illustrated is c" to have the entire Weight of the p l upon the bottom ll, it will he appreciated th at by a suitable attachment We may provide a.

detachable tripod arrangement which will 35 connect to the cylinder block or upper casting 96 so that the upper portion oi" the puur? may be supported by this tripod. 'This course is an ancillary support and is not sary Ato the operation of our pump since i main feature of the present type of pump consists of providing a long tubular conc having a pump at its bottom and a pr, mover at its top, the pump being construe of light portable material but of suiicier sturdy construction that the entire Weight of the pump may be born by the foot or bottoni thereof.

Having thus described our invention what We claim as new and desire to secure by Let ters Patent is: I

1. ln a pump of the character described.) the combination of means forming a long tubular conduit and having a rigid base forming a pump support7 a rotary pump mounted in said support. a water inlet i'or said pump, a Water discharge at the upper end of said long tubular conduit, a cylinder blockmounted in the upper portion of said long tubular conduit, a gas engine mounted' J0 on said cylinder block connected to said pump and having a water jacket, said cylinder block having a 'water passage therethroiigh connected with the jacket, and a relatively small pipe mounted wholly in said long tubular conduit terminating at its lower end in the conduit above the pump and connecting with the water passage in said cylinder block and suction means in connection with the suction side of the pump for forcing water upwardly through said pipe to the water jacket of the engine.

2. In a device of the class described, the combination of means forming a long tubular conduit and having a lower internal supportand provided with a lower water inlet, a rotary pump mounted' in said lower support, a cylinder block mounted on the upper end of said long tubular support, a gas engine mounted on said cylinder block 'and having a drive shaft passing through said cylinder support and through said long tubular conduit and connecting with the pump, water passages -formed through said cylinder block-and connecting with the water jacket of the engine, and water inlet and discharge pipes of relatively small diameter connecting with said passages and means for s forcing water through said pipes to circulate the same through the water jacket of the engine, said long tubular conduit having an upper water discharge.

3. In a device of the character described, the combination of means forming a long tubular conduit having a water inlet at its base and a water discharge at its top, a lower support in said long tubular conduit forming a pump casing, a rotary pump in said casing, a cylinder block carried on the.

upper portion of said long tubular conduit, a water jacketcd gas engine mounted thereon, said gas enginehaving a shaft passing through said cylinder block through said long tubular conduit and connect-ing with the water pump and a sleeve connected to the cylinder block and concentrically surrounding the drive'shaft and connected to the lower pump casing and forming a concentric water passage whereby water forced from the pump will be carried upwardly around .said-casing and discharged through the upper water outlet, and means for taking cooling water under pressure for the engine jacket from the concentric water passage and discharging it at the suction of the pump. e

t. In a device of the character described. the combination of means forming a long tubular conduit having 'a water inlet at its base and a water discharge at its top, a lower support in said long tubularconduit forming a pump casing, a rotary pump in said casing, a cylinder block carried on the upper portion of said long tubular conduit, a gas engine mounted thereon, said gas engine having a shaft passing through said cylinder block through said long tubular conduit and connecting with the water pump, and a sleeve connected to the cylinder block and conccntrically surrounding the drive shaft and connected to the lower pump casing and forming a concentric water passage whereby water forced from the pump will be carried upwardly around said casing and discharged through the upper water outlet, water passages in said cylinder block connecting with` the water jacket of the engine, and relatively small pipes connected to said Water passages and extending longitudinally and within the long tubular conduit and outside of said casing concentrically surrounding the drive shaft, and pressure and suction means for circulating water through said pipes to and from the water jacket of the engine.

5. ln a device of the class described, the combination of means forming a long tubular conduit provided with a Water inlet at its base and a water discharge at its top, a water jackcted engine mounted on the top of said long tubular conduit and having a long drive snaft extending downwardly therethrough and provided with a rotary pump disposed at the bottom of said long tubular conduit for forcing water upwardly therethrough in a spiral path and discharging it through the Lipper outlet, and means :tor circulating a portion of the water in the long` tubular conduit through the water jacket of the engine, said means including a spii'ally arranged pipe disposed in the path of the water within the long tubular conduit and extending longitudinally thereof.

. ln a device of the class described,

lll

let pipe having its inlet inside of said screen and connected with the water jacket of the engine,.and a water discharge pipe connected with the discharge pipe of the water jacket of the engine and passing longitudinally within said long tubular casing, between said conduit and said sleeve surrounding the drive shaft, said discharge pipe terminating in a chamber connecting with the chamber in which the rotary pump rotates and substantially adjacent its central axis whereby to create a suction through said water discharge pipe when the pump rotates.

il ln a device or the class described, means forming a long tubular conduit provided with a Water inlet-at its base and a Water discharge at its top, a Water jacketed as engine mounted at the top of said long 'tu ular conduit and having a drive shaft passing longitudinally Within said long tubular conduit and provided with a rotary pump located at the bottom of said long tubular conduit whereby Water passing into the bottom of said long tubular conduit is pumped upwardly therethrough and discharged at the top thereof, a relatiwellt7 small vvater circuloting pipe opening Within the long tubular conduit and connecting with the Water jaclret ol the engine, and another pipe oi2 relatively small diameter connecting with the discharge ot the vvater jlaclret and said latter pipe connecting 'with the rotary pump casing at a point substantially adjacent its cential airis whereby in rotation of said pump a suction is created through. said discharge pipee tl. ln a device of the class described, the combination ot means forming a long tubuconduit having a Water inlet at its bottom and a Water discharge at its top, a gas having a Water jacket and mounted at the top oit said long tubular conduit, said gas engine having a drive shaft passing longitudiuuallyv Within said long tubular conduit and provided with a rotary pump mounted substantially the bottom of said long tubular conduit, and suction. means operated by and directly connected with the suction side of said pump :tor causing a circulation eter through 'the jacket oft the il. a device o? the class described, the combination ot means forming a lone tubular conduit having a Water inlet its bottom and a water discharge at its top, a gas engine having a Water jacket and mounted at the top of said long tubular conduit above the Water discharge, f d gas engine havin a drive shaft passing long itudinally Within said long tubular conduit and provided `with a rotary,T pump mounted substanielly at the bottom ot said long tubular conduit, and means operated by said pump tor causing circulation of Water through the Water jacket of the engine, said means being constructed and arranged to take a portion ot the vvater forced by said pump upwardly through said long tubular conduit at a distance above the ump and pass the same through the Water jgacket of the engine and discharge 'itback into the long tubular conduit adjacent'4 the bottom thereof and at the central suction side of the pump.

10. ln a device of the class described, the combination o means forming a lonv tubu lar conduit having a water inlet at its bot tomand a water discharge at its top, a gas engine having Water jacket and mounted resaca@ at the top oi said long tubular conduit, said gas engine having a drive shaft passing longitudinally Within said long tubular conduit and provided with a rotary pump mounted substantially at the bottom of said long tubular conduit, and pressure and suction means operated by said pump for causing a circulation of Water through the Water jacket of the engine, said means being constructed and arranged tov take a portion of the Water forced by said pump upwardly through said long tubular conduit at a distance above the pump but at the lower end ot the conduit and pass the same through the Water jacket of the engine and discharge it bach into the long tubular conduit at the suction side of the pump, said circulating means being Wholly mounted Within the long tubular conduit.

il. ln device ot the class described, the combination ot means forming a Water passage having an inlet and a discharge, a pump mounted 'therein .tor forcing water therethrough, a gas engine for operating said pump, `a diaphragm mounted in the Water passage, and a control device operated by the diaphragm for breaking the ignition circuit ot the gas engine when the tlovv of Water through the passage ceases and comprising a spring pressed contact stem vvith a head at the outcl` end, a sleeve through which the stem projects, and a clip insertable between the head and sleeve against the spring pressure for preventing a grounding o` the ignition circuit until the huid under pressure reaches the diaphragm..

n n outboard motor pump comprising a long tubular conduit, a jaclaeted combustion engine the top ot the conduit, rotary pump the bottom of the conduit connected to the engine shaft, and means to cause :a circulation of cooling Water through the en gine jacket comprising ipe having an inlet in the conduit above the pump but u cent bottom ci the conduit tor .receivi o the pressure of the Water pumped and a suction pipe extending trom thsj to the suction side ci the pump l vlnereby the engine 'will receive cooling Water indepenct nt ot the discharge ot Water from the conuitJu 13 An outboard motor pump comprising a long tubular conduit, a jacketed combustion engine at the top of the conduit, a rotary pump at the bottom o the conduit connected to the engine shaft, and means to induce a iovv ot coolin Water through the engine jacket comprislng a water inlet above the pump in the lower end ot the conduit, and a suction outlet adjacent the pump suction to raise Water to the jacket in the inlet and withdraw Water therefrom and discharging it through the pump.

14. An onboard motor pump comprising a lon tubular conduit a jacketed combustion engine at the top ci the conduit, a rotary nesaeeo pump at the bottom of the conduit connected to the engine shaft, water inlet and discharge pipes -in the conduit connected with the engine jacket, and means depending ulpon the pump suction for forcing a portion of the water from the conduit through the pipes to circulatewa-ter through the engine Jacket andback to the conduit through the pump itself. y l

15. A portable motor combustion pump comprising a long tubular conduit to stand uprlghtly, a pump at the bottom, and a fluid outlet at the top, a jacketed motor at the topl of the conduit above the outlet, and means for inducing a How-of cooling water through the motor comprising inlet and discharge pipes Aconnected with the jacket and located in the conduit, the inlet lpipe receiving the pressure of fluid from the pump adjacent the bottom of the conduit, and the outlet pipe discharging adjacent the suction of the pump tending to withdrawl the water therefrom. In witness whereof, I have hereunder subscribed my name.

CHARLES D. COOK. In witness whereof, I have hereunder subscribed my name.

` JOHN R. TOWN SEND.