US736235A

US736235A - Pump for portable engines or the like.

Info

Publication number: US736235A
Application number: US14316403A
Authority: US
Inventors: William W Dingee
Original assignee: Ji Case Threshing Machine Co
Current assignee: J I CASE THRESHING MACHINE Co; Ji Case Threshing Machine Co
Priority date: 1903-02-13
Filing date: 1903-02-13
Publication date: 1903-08-11
Anticipated expiration: 1920-08-11

Description

no MODEL.

' PATENTED AUG. 11, 1903.-

W. w. DINGEH.

PUMP FOR PORTABLE ENGINES OR THE LIKE.

APPLICATION 1-11.21) FEB 1a. 1903.

2 SHEETS-SHEET 1.

wig I I ljwlflfi y g 4 PATENTED AUG. 11, 1903.;

No; 736,235. v

. w. w. DINGEE.

'PUMP FOR PORTABLE ENGINES OR THE LIKE.

APPLICATION FILED FEB. 13, 1903.

2 SHEETS-SHEET 2.

N0 MODEL,

" U -irnni STATES ifi'atented August 11, 1903.

PATENT OFFICE.

WILLIAM W. DINGEE, OF RACINE, WISCONSIN, ASSIGNOR TO J. I. CASE THRESHING MACHINE COMPANY, OF RACINE, WISCONSIN, A CORPO- RATION.

PUMP FOR PORTABLE ENGINES OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 736,235, elated August 11, 19 (O3.

' Application filed February 1 3, 1903. SerialNo. 148,164. (No model.)

To whom it may concern:

Be it known that LWILLIAM W. DINGEE, of Racine,county of Racine, and State of Wisconsin, have invented certain new and useful Improvements in Pumps for Portable Engines orthe Like, of which the following is declared to be a full, clear, and exact description.

The invention relates tofeed-water pumps for the boilers of portable, traction, or other like engines and seeks to provide a simple and effective construction by which the feedwater pump maybe operated directly from a moving part of the engine in connection with means for throwingthe pump into and out of operation while the engine is in motion.

Theimproved pump is designed as a substitute for the small steam-pump or so-called cross-head pump now comm only employed with portable and like engines. The steampump is expensive, complicated, and not easily kept in repair. The objections to the cross-headpump are chiefly that it has too long a stroke, too rapid an operation, and it can only be stopped by stopping the engine. Thepresent invention seeks to overcome the objections noted; and it consists in the featuresof construction, arrangement, and

1 out in the appended claims.

In the drawings, Figure 1 is a view in elevation of the improved pump. Fig. 2 is a longitudinal section thereof, taken in a horizontal plane. Figs. 3 and 4c are detailed views of the shifter mechanism for throwing the pump into and out of operation. Fig. 5 is a detailedsection on line 5 5 of Fig. 4.

A suitable pump-frame 10 is provided, by which the pump maybe secured in suitable position upon the engine to which it is to be applied. A pump-cylinder 11 is secured to or formed in piece with the pump-frame 10, and at its'closed end is provided with the usualcheck-valves 12 and 13 and with a petcocklel. Apiston 15,preferably of the plunger type, reciprocates longitudinally throughthe open end of the cylinder 11, and the open end of the cylinder is provided with the usual stuffing-box 16. An ordinary air-cushion frame, so that the latter form gui deways upon which the supplemental frame 19 may have a limited longitudinal movement in line with the pump-cylinder 11. The engaging faces of the supplemental frame 19 and of the pump frame portion 18 are nicely fitted to hold the supplemental frame against lateral movement, and the latter is supported upon the main frame by a headed bolt 21, (see Fig. 2,) extending through a longitudinal slot 22 in the outer end of the portion 18 and threaded into the supplemental frame 19. The outer end of the supplementalframe 19 isformed to a suitable journal-box 23, within which is rotatably mounted the pump-actuating shaft 24. The pump-actuating shaft 24 is connected to the plunger-piston 17 preferably by means of a crank-pin 25 and a connecting-rod 26. A pump-actuating wheel '27 is operatively connected to the actuating crank-shaft 24: and is preferably mounted directly onsaid crankshaft or formed in piece therewith, as indicated in Fig. 2. l

A drive-wheel 28, with which the pumpactuating wheel 27 engages,is operatively connected to a revoluble part of the engine and in this instance is shown mounted directly on the engine crankshaft, (indicated at 29.) In order that the

wheels

27 and 28 may be readily engaged and disengaged to start and stop the pump, said wheels preferably form members of a friction drive, and for this purpose one of said wheels (in this instance the drivewheel 28) is formed of compressed paper or other suitable material which may be adapted to hold the frictional connecting parts in engagement without undue slipping.

Any suitable means may be employed for shifting the supplemental frame 19 to throw the cooperating

wheels

27 and 28 into and out of engagement; but in the present instance a shifter is provided in the form of a lever 30, pivotally mounted upon a pin 31. The pin 31 extends through an enlarged opening or cam-slot 32 in the supplemental frame 19 and is secured to (see Figs. 2 and 5) the portion 18 of the pump-frame. An eccentric or cam 33, secured to or formed in piece with the shift-lever at its pivoted end, extends within the cam-slot 32 of the supplemental frame 19. When the shift-lever 30 is operated, the cam 33 serves to move the supplemental frame 19 a sufficient distance to throw the cooperating friction-

wheels

27 and 28 into and out of engagement.

Means are preferably provided for locking the supplemental frame and parts carried thereby in shifted position,and in the present instance such means comprises a pin 34, which is connected-to the shift-lever 30 intermediate its ends and which projects through a segmental slot 35 in'an upwardly-extending portion 36 of the supplemental frame 19. lock-nut 37, threaded upon the end of the pin 34, may be brought to bear against the outer face of the projection 36, and thus lock the parts in shifted position.

By the simple arrangement shown the pump-actuating means may be quickly thrown into and out of engagement with the swiftlyrunning parts of the engine without danger. The pump-actuating wheel 27 is preferably larger than the drive-wheel 28 to reduce the speed of the pump-piston. The crank-pin 25 may be readily set at proper distance from the crank-shaft 24 to give the desired short stroke to the pump-piston 15. By the particular manner in which the supplemental frame 19 is mounted upon the pump-frame portion 18 the actuating crank-shaft 24 and wheel 27 are accurately held and guided in their to-andfro shift in line with the cylinder and its piston 15. The to-and-fro shift of the supplemental frame 19 to move the wheel 27 to and from the wheel 28 need only be very slight to engage and disengage these friction-wheels and throw the pump into and out of operation. Furthermore, it will be observed that the pump-actuating shaft 24 and wheel 27 are arranged between and in line with pump-cylinder 11 and the drive-wheel 28, so that during the inward or forcing stroke of the pump, which is made against the boiler, pressure, the friction-

wheels

27 and 28 will be crowded together and any undue slippingbetween such wheels thus prevented.

It is obvious that the details of structure may be varied by the skill of. the mechanic without departure from the essentials of the invention.

Having described my invention, what I claim is new, and desire to secure by Letters Patent, is-

1. A pump for portable engines and the like comprising a cylinder, a piston within said cylinder, a pump-actuating shaft and wheel connected to said piston and a shiftable support whereon said actuating-wheel is journaled.

2. A pump for portable engines and the like comprising a main frame, a cylinder mounted thereon, a piston in said cylinder, a pump-actuating shaft connected to said piston, an actuating-wheel mounted 011 said shaft, a supplemental frame whereon said actuating-shaft is journaled, said supplemental frame being longitudinally movable on said main frame in line with said cylinder and means for locking said supplemental frame in shifted position.

3. A pump for portable engines and the like comprising a main frame, a cylinder mounted thereon, a piston in said cylinder, an actuating-shaft connected to said piston, a pump-actuating wheel connected to said shaft and forming one member of a frictiondrive and a supplemental frame shiftably mounted upon said main frame whereon said pump-actuating wheel and shaft are journaled.

4. In pumps for portable engines and the like, the combination with the-.engine-shaft, of a pump-frame, a cylinder mounted on said frame, a piston in said cylinder, an actuating crank-shaft and friction-wheel connected to said piston, a cooperating friction drivewheel operatively connected to said engineshaft and a shiftable supplemental frame whereon said pump-actuating wheel and shaft are journaled.

5. In pumps for portable engines and the like, the combination with the engine-shaft, of a friction drive-wheel operatively connected thereto, a pump-cylinder, a plungerpiston in said cylinder, a pump-actuating shaft and friction-Wheel between said drivewheel and said cylinder and operatively connected to said piston and a support movable in line with said cylinder whereonsaid pumpactuating shaft and wheel are journaled for shifting said friction-wheels into and out of engagement.

6. In pumps for portable engines and the like, the combination with the engine-shaft and with a friction drive-wheel operatively connected thereto, of a pump-frame, a cylinder on said frame, a plunger-piston in said' cylinder, an actuating crank-shaft and friction-wheel connected to said piston and journaled in line between said pump-cylinder and said friction drive wheel, a supplemental frame whereon said pump-actuating shaft and friction-wheel are journaled, said supplemental frame being longitudinally movable on'said pump-frame for throwing said friction-wheels into and out of engagement and means for locking said supplemental frame in shiftable position.

7. In pumps for portable engines and the like, the combination with the engine-shaft and with a drive-wheel operatively connected thereto, of a pump-frame, a cylinder on said frame, apiston in said cylinder, an actuating crank-shaft and Wheel operatively connected to said piston, a supplemental frame where-V are journaled, said supplemental frame being 'movably mounted on said pump-frame, a

shift-lever jonrnaled on said pump-frame, a shifter-cam connected to said lever and engaging a slot in said supplemental frame, a locking-pin connected to said lever and engaging a segmental slot in said supplemental frame and a lock-nut on said pin.

a 9. In pumps for portable engines and the like, the combination with the engine-shaftand with a friction drive-wheel operatively connected thereto, of a pump-frame, a cylinder mounted on said frame, a plunger-piston in said cylinder, an actuating crank-shaft and friction-wheel operatively connected to said plunger-piston and arranged in line between saidcylinder and said friction drivewheel, a supplemental frame whereon said pump-actuating shaft and wheel are journaled, said supplemental frame being longitudinally movable on said pump-frame in line with said cylinder and to and from said friction drive-wheel for throwing said pump-actuating friction-wheel into and out of engagment with said friction drive-wheel, a shifter for said supplemental frame and means for locking the same in shifted position.

10. In pumps for portable engines and the like, the combination with the engine-shaft and with a friction drive-Wheel operatively connected thereto, of a pump-frame, a cylinder on said frame, a plunger-piston in said cylinder, an actuating crank-shaft and friction-wheel connected to said plunger-piston and journaled in line between said pumpcylinder and said friction drive-wheel and a supplemental frame whereon said pump-actuating crank-shaft and Wheel are journaled, said supplemental frame being longitudinally movable in line with said cylinder and to and from said friction drive wheel for throwing the pump into and out of operation.

WILLIAM W. DINGEE;

Witnesses:

EDWIN E. RUssELL, FREDERICK LEE NORTON.