US707079A - Feed-pump and connection for horseless carriages. - Google Patents

Description

No. 707,079. Patented Aug. I9, I902.

J. C; BLEVNEY.

'FEEDY PUMP AND CONNECTION FOR HOBSELESS CARRIAGES.

(Application filed Jan. 8, 1901.)

(No Model.)

INVENTORQ WITNESSES: M J6 ATTORNEYS.

m: NORRIS pcrzns can mcrmJi-Hcn WASNINGTON, 'u c.

UNITED STA res JOHN (J. BLEVNEY, OF NEWARK, NEW JERSEY.

FEED-PUMP AND GONNECTIQN FOR HORSELESS CARRIAGES.

SPECIFICATION forming part of Letters fatent No. 707,079, dated August 19, 1902. Application filed January 8, 1901. Serial No. 42,462. (No model.)

To ctZZ whom, it may concern:

Be it known that I, JOHN C. BLEVNEY, a citizen of the United States, residing at Newark, in the county of Essex and State of New J ersey, have invented certain new and useful Improvements in Feed-Pumps and Connections for I-Iorseless Carriages, duo. 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 artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is, more particularly, to enable the driver of a horseless' carriage or other vehicle driven by steam to regulate more effectively and convenientlythe supply of water within the boiler of such horseless vehicle and to secure other advantages and results, someof whichmay be re ferred to hereinafter in connection with the description of the working parts. I

The invention consists in the improved pump and means for regulating the operation thereof and in the arrangements and combinations of parts," all substantially as'will be hereinafter set forth, and finally embraced in the clauses of the claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several figures, Figure 1 is a side elevation of a boiler, engine, and pump and means for connecting the same and regulating the flow of water into said boiler. Fig. 2 is a horizontal detail section taken at line 00 of Fig. 1. Fig. 3 is a vertical section taken at line y of Fig. 1; and

Fig. 4: is a sectional detail of the valved pumpcylinder, showing the construction of a series of valves thereof. a

In said drawings, a indicates the furnace, containing a boiler b, an engine adapted to take steam therefrom.

c is a pump connected, by means of a pipe or tube d, with the boiler and whereby the feed-water is forced into said boiler.

19 is the piston-rod of said pump, which is connected to the piston 6', Fig. 4, of said pump and is preferably reciprocated to secure the pumping operation indirectly by means of the said engine I), but. which may be operated by hand independent of said on gine, as will be hereinafter more fully explained. The said piston-rod e is preferably connected to said engine by a train of connecting-rods comprising a lever f, fulcrumed atg and at its end opposite the fulcrum pivotally connected, as at h, with a connectingrod 6, which latter is in turn pivotally connected atj with the connecting-rod k of the engine. Said connecting-rod 7c is pivotally joined to the piston-rod 76 of the engine I) at one end and at its opposite end is pivoted to the crank-shaft m, as at j, in any suitable manner. Near its connection with the crankshaft said rod is is furnished with an arm It, providing the bearingsj for the pivotal connectiono.

' The crank-shaft m is connected with the wheels of the vehicle by means of chains, gearing, or any other means (not shown) for transmitting power..

The connecting-rod z' is preferably separably connected to the arm 7.2, the pin 0, by means of which the said arm in and connecting-rod 1; are pivotally connected, being removable, and the connecting-rod e', being provided with 'a handle 19, is thus free to be manipulated independent of the connecting-rod 7t" and engine, so that in the event of the vehicle being stalled on the road the, said. boiler may be supplied with water byhand preliminary to the productionof steam. B yfthis means I am enabled to dispense withan additional handpump, the one engine-operable pump serving for service in connection with both hand and engine, whereby I economize room and the weight of a multiplicity of parts within the carriage.

To enable the pumping operation to be regulated and controlled more effectively,'so as to secure a greater or less supply of water with a given engine speed, I have arranged the lever f adj ustably with relation to its fulcrum, so that as said lever is reciprocated by means of the connecting-rod 't' the piston 6 will be given a pumping stroke of greater or less length, and to this end I form the said lever f in sections, one section of which, f has the fulcrum g and is permanently pivoted upon the fulcrumal bracket or support (1 and is provided with the dovetailed groove, as shown in Fig. 2. The second section f is dovetailed to fit said groove and slide therein.

The piston-rod e of the pump is extended beyond its connection with the lever f and is pivotally joined at 1" to a connecting-rod 7", which extends upward to a point convenient of access-to the driver, where it is connected with a crank-arm s of an indicator if. The said indicator 2 is provided with a dial-plate u, having indicating-marks thereon, adapted to show the relation of the pump to its normal or standard working capacity for pumping when the vehicle is running upon a level grade, the center indicating-mark on the said dial indicating the normal positions of the parts when the same are adjusted for traveling upon a level grade. Should the work of the carriage be upon an upgrade, so that it becomes'desirable to gradually increase the supply of water within the boiler, I throw the index-point t laterally from the center mark in one direction, and thus adjust the connected parts to effect an increase in the length of the stroke of the pump-piston; but should the work of the vehicle be upon a descending grade then the indicator and connections are moved in a reverse direction and the supply of water to the pump is reduced below the normal. This may be effected in numerous ways; but I prefer to form the indicator t of a bell-crank having the arm 3, as above referred to, an index-point t, and a handle t integrally united and disposed so that the driver may quickly set the bell-crank to any desired adjustment. The arm 3 of the said bell-crank serves to raise or lower the connecting-rod r and cause the sliding leversection f to change the relation of the piston-rod e to the fulcrum g, whereby the stroke of the said piston is lengthened or reduced, as will be obvious upon examination of Fig. 1.

Should the connecting-rod e be moved so that its pivotal connection f with the lever f is brought into alinement with the fulcrum g, then the pumping action due to the oscillation of the lever fis stopped; but should the said connection of the said connecting-rod and lever be raised or thrown away from the said fulcrum then the stroke is proportionately increased, the greater the distance of the fulcrum and point of connection f the greater the stroke, as will be evident.

To reduce the liability of the suction-valves c and check-valve c of the pump 0 from becoming inoperative because of the interposition between the valve and valve-seat of foreign substances, such as are liable to be found in ordinary Water, I have provided an improved pump having double supply and check valves, whereby should one of the said valves in each pair be rendered temporarily inoperative because of such interposition the other will be operative to effect the desired results. To this end I have provided a series of valves 0 0 0 0", (shown in Fig. 4,) two check or discharge valves 0 c and two suction-valves 0 12 and thus by the arrangement shown should the water entering from the supplypipe 1; upon the suction stroke of the piston contain a clogging bit of matter, preventing a closing of the first valve, the water is caused to pass through the passage or aperture of a second suction or supply valve, and upon the return stroke of the piston the said water is forced through the water-passages of two discharge or check valve seats, and should either of the two discharge-valves become inoperative because of the condition assigned the other of said valves will effectively serve the desired function for the time being, and thus the motor will not at a critical moment be rendered inoperative because of a failure in the operation of the pump. The said Valves and cooperating parts may form the subject for the claims of a separate application.

Having thus described the invention, what I claim as new is-- 1. The combination with the boiler, engine and pump, of a fulcrum, a lever f, formed in sections, one of which is permanently fulcrumed on said fulcrum, and the other of which is free to slide in the first said section, the free section being connected both to the piston of the pump, the piston of the engine and to a handle p, substantially as set forth.

2. The combination with the boiler, engine and pump, a handle and pump-stroke indicator, of a fulcrum, a lever f, formed in sections, one of which is free to slide lengthwise of the other, the free section being connected to the piston of the pump, the piston of the engine, the handle and to the pump-stroke indicator, substantially as set forth.

3. The combination with the engine, boiler and pump, of a fixed fulcrum, a sectional lever, one of the sections of which provides the bearings for the fulcrum of said lever, and the other section of which is connected to the piston of said pump and the piston of the engine, and means for changing the relation of the said sections to increase or diminish the length of stroke of the pump, substantially as set forth.

4:. The combination with the boiler and engine, of a pump, for supplying the said boiler with water, a piston moving reciprocally in said pump, a lever formed in sections, one of which is longitudinallyadjustable in its relation to the other, the adjustable section being pivotally connected to the piston-rod of the piston,the said piston-rod beingalso connected to a connecting-rod 1", said connecting-rod r, a hand-operable indicator connected withthe rod 1' for adjusting the sections of the lever, a connecting-rod t, for operating said lever, and a connecting-rod 7c, connecting the said connecting-rod t, with the piston of the engine, substantially as set forth.

5. The combination with the engine and pump and their respective piston-rods, of a fixed fulcrum, a sectional lever, one of the sections of which is free to slide longitudinally on the other, the pump piston-rod being connected to the sliding section, and said piston-rod extending into connection with a connecting-rod of an indicator, said connecting-rod and a hand-operable indicator serving both to indicate the stroke of the pump and to move the sliding section of the lever on the fulcrumed section and connections of said sliding section With the piston-rod of the engine, substantially as set forth.

6. The combination with the engine and its piston-rod 70 and connecting-rod 7c, of the separable rod 2', connected to the rod 74;, and having a handle 10, a lever f, connected to said rod 2', a fixed fulcrum for said lever, the'pump and piston-rod e, the latter being connected to the lever and extending therefrom into connection with the rod 7, said rod 1, and a handlever for operating the same and changing the stroke of the pump piston-rod, substantially as set forth.

7. The combination with the boiler and engine, of a crank-shaft and connecting-rod of the engine, said rod having the arms 73, the handled rod 7:, pivotally connected to said arm, the sectional lever, the section f of which is fulcrumed on a fixture, and is provided with a groove to receive the section f, a pump piston-rod pivoted upon the section f, a pump and its piston, a connecting-rod r, and means for raising and lowering the same to change the stroke of the pump-piston, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day of December, 1900.

JOHN C. BLEVNEY.

Witnesses:

C. B. PITNEY, CHARLES H. PELL.

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