|Publication number||US1170661 A|
|Publication date||Feb 8, 1916|
|Filing date||Jan 5, 1914|
|Priority date||Jan 5, 1914|
|Publication number||US 1170661 A, US 1170661A, US-A-1170661, US1170661 A, US1170661A|
|Inventors||Philip A Myers|
|Original Assignee||F E Myers And Brother, Francis E Myers, Philip A Myers|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
P. A. MYERS.
APPHCATION FILED IAN-5.19M.
Patented. Feb. 8,
2 SHEETSSHET I.
mpm atoz latentd Feb. 8, 1916.
2 SHEETS-SHEET 2.
APPLICATION FILED JAN. 5, 1914.
P. A. MYERS.
LWQGGL mh tmeoow Application filed January 5, 1914. Serial No. 810,317.
To all whom it may concern:
Be it known that I, PHILIP A.
MYERs, a citizen of the United States,
residing at Ashland, in the county-of Ashland and State of Ohio, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had therein to the accompanying drawing.
This invention relates to pumps and more particularly to pumps of-that type, which force both .water and air into a receptacle where the air is confinedunder pressure and utilized to force the water through a distributing system. In pumps of this kind as heretofore employed various difficulties have been encountered. .In many of them the air has been pumped directly into the water cylinder or into the discharge conduit at a point in advance of the outlet valve so that both the water and the air had to pass the valve. This arrangement not infrequently resulted in the pump becoming air-locked so that it would finally cease to pump water.
Again, there has frequently been leakage of waterpast the check valve and onto the floor which is troublesome in many nstances, as
' these pumps are-often hand pumps and are sufficiently great.
mounted in places where such leakage is very undesirable. Further, in many of these pumps the operating devices are so arranged that it is necessary to operate the air pump whenever the water pump is operated, thus. involving the use of unnecessary power and unnecessary labor in the case of a hand pump, even though means may be provided for relieving the pressure in the air cylinder when the pressure in the tank has become The object of the present invention is to overcome these difiiculties asfully and completely as possible.
To this end it is one object of the 1nvention to provide means for so introducing the. air into the'discharge line of the pump that there will be no danger of the pump becoming air-locked.
Another object of the invention is to so arran e this conduit and the valves controlling t e flow of air to and from the air cylinder as to prevent the escape of ,water should the same leak past the air discharge valve.
Another object of the invention is to so arrange the air cylinder with reference to the water cylinder that-the same actuating Specification of Letters Patent.
eration of the cylinder for the air 1 t." run snares rarnnr onision OHIO, ASSIGNOR TO F. E. MYERS AND BROTHER, A 015 FRANCIS E. MYERS AND PHILIP A. MYERS, OF
Patented Feb. 8, 19116.
device may be utilized for manipulating the plstons of both cylinders; that the power maybe applied to the air cylinder to the best possible advantage; and further, to so construct and arrange the connection between the piston of the air cylinder and the actuating device that it can be quickly and easily disconnected when the resistance to the 0ppump indicates that the pres sure in the air tank has reached the desired degree.
Further, it is an object of the invention to so arrange the cylinder with reference to the water pump per 86 .as to occupy practically no additional space.
In the accompanying drawings, Figure 1 is a side elevation of a pump embodying my invention; Fig. 2 is a transverse, sectional view, taken on the line w-m of Fig. 1; Fig. 3 is a longitudinal,sectional'view taken vertically of the pump through the water dis charge conduitj and Fig. 4: is a detail view of the separable. connection between the pump and the actuating device for the water pump, showing the parts separated.
Inthese drawings I have illustrated one embodiment of my invention and have shown the same as applied to a horizontal handoperated double-acting pump of a well known character. The pump comprises, briefly, a cylinder 1 having mounted therein the usual piston 2 provided with a piston rod 3 which extends through the forward cylinder head. Entering the pump through the base thereof is an inlet conduit 4 which communicates with the cylinder at both endsthereof and is controlled by suitable valves 5. On one side of the pump is a discharge conduit 6 communicating with the cylinder at both ends thereof and leading to an air chamber 7 from which the water is discharged to the service pipe. The flow of the Water through the discharge conduit is controlled by valves 8. The pump may be operated in any suite. able manner, but in the present instance I have shown it in the form of a hand-o erated pump and have mounted the operating deits outer end a toothed portion or rack 10 no adapted to mesh with a segmental rack 11 ivotally mounted on the upper portion of the bracket 9 and provided with an operating handle 12, the manipulation of which will actuate the piston 2 in the water pumping cylinder.
In connection with this pump I have provided an air pumping cylinder which is supported adjacent thereto and, in the present instance, it is mounted at the end of and parallel with the Water cylinder, as shown at 13, and is rigidly secured-to and supported beneath the bracket 9. This pump is supported in this position for two "reasons. First, it enables the controlling valve to be mountedinthedesired position, as will be hereinafter explained, and second, it forms a very compact arrangement of the pump as a 4 whole and enables the actuating device to be connected with the piston of the air cylinder, which is shown at 14:, in such a manner as to utilize the power to the best possible advantage. This connection is of such a construction and arrangement that it can be very readily detached, thus enablin the air pump to be entirely disconnected rom the operating devices when suificient pressure has been created in the water tank andeliminating the unnecessary labor incident to the operat1on of this pump. The connection is,
v in the present instance, formed by connectare connected one with the other by means ing the piston rod 15 of the piston 14 with the piston rod 3 of the water cylinder. To this end the toothed pdrtion 10 ofthe piston rod 3 has a depending portion or double lug 16, between which the end of the pistonrod 15, which is flattened, extends. The parts of a pin 17 and the end of the rod .15 is turned over, as shown at 18, to form a laterally extending projection which will engage the lug 16 and relieve the pin 17 of a large portion of the thrust to which it would otherwise be subjected.
The air cylinder is, in the present instance, a single acting cylinder and has its intake and discharge conduits arranged at the rear end thereof. A single port 19 serves both as an intake and as a discharge opening and is connected with an intake conduit 20 and a discharge conduit 21. The latter communicates with the water discharge conduit 6 at a point beyond the controlling valves 8 that is, the air is mingled with the water after the latter has passed the valves. In this manner the tendency of pumps of this type to air-lock, as above explained, is entirely overcome. A check valve 22 is interposed in the discharge conduit 21 to prevent the backward flow of the air and water from the water discharge conduit to the air cylinder. There will usually be more or less leakage about this check valve and I have so arranged the intake valve 23 that it will efiectually prevent the water which so leaks past the check valve from escaping to the floor. To this end I have mounted the intake valve, which is also a Well known form of check valve, in the intake conduit at a point heneath the check valve 22 so that the leakage .will be retained within the conduit and upon and it will be apparent that by the construction and arrangement of the several parts I have produced a very efficient pump which will pump both air and water. at will and ,which may have the air pumping apparatus entirely disconnected from the operating devices when desired. Further, that the pump is of such a character that the air is mingled with the water at such a point that there is no interference with the operation of the water pump and further that the valves controlling the air are such and are so arranged as to efiectually prevent the leakage of water through the air conduit to the floor. It will also be observed that the whole arrangement is "a very compact one, utilizing no more floor space than the water pump alone would utilize and having the air cylinder very strongly. and rigidly connected to'an existing art of the water pump and so arranged t at the power of the'operating device or handle may be applied to the piston thereof to the best possible advantage.
While I have shown and described one embodiment of my invention it will. be understood that this has been chosen for the purposes of illustration only and that I do not desire to be limited to the details of construction shown and described, for obvious modifications will occur toa person skilled in the art.
Having thus 'fully described my inven- 'tion, what I claim as new and desire to secure by Letters Patent, is
1. In a pump, the combination, with a horizontal water pumping cylinder having a cylinder head, a piston mounted in said cylinder, a piston rod for said piston ex-- tending beyond said cylinder head, a bracket rigdly secured to said cylinder head and extending longitudinally of said piston rod and an operating member mounted on sai bracket and o eratively connected with said piston rod, 0 an air pumping cylinder rigidly secured to said bracket, a piston in said air pumping cylinder, a piston rod therefor, and an operative connection between the last-mentioned piston rod and said operating 'member.
2. In a pump,
the combination, with a horizontal water and an operating member mounted on said bracket and operatively connected with said piston rod, of an air pumping cylinder rigidly secured to said bracket and arranged beneath the same and beyond said cylinder head, a piston in said air cylinder, a piston rod therefor extending substantially parallel with the first-mentioned piston rod, and means for connecting said last-mentioned piston rod with and disconnecting the same from said operating member, whereby either one or both of said pistons may be operated y the manipulation of said handle.
3. In a pump, the combination, with a horizontal water pumping cylinder having a cylinder head, a piston mounted in said cylinder head, a piston rod for said piston extending through and beyond said cylinder head and having at its outer end a toothed rack, a bracket rigidly secured to saidcylinder head and extending lengthwise of said piston rod and having a portion forming a guide for said rack, and a handle pivotally mounted on said bracket and having a toothed portion meshing with said toothed rack, an air pumping cylinder rigidly secured to said bracket and supported beneath the same near said rack, a piston in said air pumping cylinder, a piston rod therefor, a lug depending from said rack, and a pin to connect said lug with and disconnect the same from the rod of the piston in said air pumping cylinder.
In testimony whereof, I afiix my signature in presence of two witnesses.
PHILIP A. MYERS. Witnesses F. B. KELLoeG, R. M. TUBES.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4334839 *||Sep 22, 1978||Jun 15, 1982||Flagg Rodger H||Hand operated, dual chambered, pneumatic pump|
|US5407424 *||Feb 24, 1993||Apr 18, 1995||Scimed Life Systems, Inc.||Angioplasty perfusion pump|
|U.S. Classification||92/136, 417/429, 417/533, 92/146|