US1757299A

US1757299A - of cleveland

Info

Publication number: US1757299A
Authority: US
Publication date: 1930-05-06
Anticipated expiration: 1947-05-06

Description

y 1930. e. L. FERGUSON 1,757,299

APPARATUS FOR COMPRESSING AIR Filed Oct. 13, 1927 INVENTOR.

pumping apparatus 3.

Patented May 6, 1930 uurran STATES PATENT OFFICE GALE L. FERGUSON, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO AUTO PRIME PUMP COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO APPARATUS FOR COMPRESSING AIR Application filed October 13, 1927.

The present invention, relating as indicated to pumping apparatus, is particularly directed to apparatus for handling and compressing air and is a modification for the purpose stated of the apparatus described and claimed in the copending application of Clarence G. \Vood. Serial No. 222,015, tiled- September 26, 1927.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims; the annexed drawing and the following description setting forth in detail certain mechanism embodying the'invention, such disclosed means constituting, however, but one 01 various mechanical forms in which the principle of the invention may be used.

In said annexed drawing:

Fig. 1 is a side elevation partially in section of my improved apparatus; Fig. 2 is a transverse radial section showing a portion of the pump casing and pump element therein; and Fig. 3 is a section on the line 33 in Fig. 1.

My improved apparatus consists of a reservoir or pressure tank 1, which is mounted in association with a priming chamber 2 and The pumping apparatus which is shown in Figs. 1, 2 and 3 consists of a casing 4:1)IO"iClG(l with a delivery passage 5 leading from the bottom of the reservoir 1 and an inlet passage 6 leading to a chamber 7 formed in the priming chamber by means of a partition 8 extending from the top of this chamber to a point closely adjacent the bottom. Any suitable means may be employed for operating the pump, such for example as an electric motor. and I have not shown this element.

The pump element consists of the casing 4 with inlet and outlet passages 6 and 5 as stated, both connected with a liquid channel 10, inwhich is rotated a pumping disc 11 pro vided with a series of oppositely formed notches 12 (see Fig. 2), which receives liquid from the inlet opening and carries this liquid around the periphery of the pump channel, discharging it into the conduit 5.

In the top of the chamber 1 is a removable Serial No. 225,888.

plug 20 which may be removed to permit the initial filling of this chamber with a suitable quantity of sealing liquid, such as water, and an air dischargeconduit 21, which may be led either to other storage tanks or'to a suitable tool requiring air for operation. A bypass regulating valve 25 is interposed in the conduit 26 extending between reservoir 1 and the priming chamber 2, while the priming chamber has also an air inlet valve 28 connected to the chamber in that portion scparated from the main chamber by the partition 8.

The operation of the apparatus is as follows: A suitable amount of liquid, such as that indicated, is first introduced into the pressure tank 1. This liquid runs down from the pressure tank through the conduit 5 and into the pressure channel it). Liquid is also admitted to the priming chamber through the by-pass regulating valve which is always open to an extent until the water in the priming chamber reaches the top or at least reaches a height sufiieient to permit it to flow into the pump channel through the conduit 6. The pump is thcnstarted and acts to draw water from the priming chamber around the pump channel and discharge it into the pressure tank through the conduit 5, and at the same time air is sucked into the priming chamber through the air valve 28. and is compressed by being forced through the pump and is then discharged under pressure into the chamber 1 and passes through the water in the bottom of this chamber, collecting in the upper portion and discharging as permitted through the discharge conduit. 21. A suitable regulation of the return of the liquid from the tank to the priming chamber through the by-pass valve 25 ensures that both water and air are constantly supplied to the pump, and this same device may be employed to vary the compression impressed upon the air in the pumping apparatus. At starting, or when the device is not in operation, the bypass valve may be closed if desired, but in operation this valve is open sufiiciently to properly proportion the amount of liquid which is introduced into the system to the amount of water which is introduced through the automatic air inlet valve 28.

Other modes of applying the principle of my invent-ion may be employed instead the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated 7 means be employed.

I therefore particularly point out and distinctl claim as my invention:

1. n a device of the class described, a centrifugal pump, a pressure tank having communication with the outlet of said pump, and a priming chamber connected to the inlet of said pump, said chamber being provided with an air inlet.

2. A device for compressing aircomprising a centrifugal pump, a pressure tank to receive the air delivered by said pump, and means including a chamber separate from said tank but having communication 'therewith for maintaining a charge of-liquid in said pump. 7

3. A device for compressing air comprising a centrifugal pump, a pressure tank to receive the air delivered by said pump, and means including said tank and a chamber separated from said tank for maintaining a charge of liquid in said pump.

4. A device for compressing air comprising a centrifugal pump having an inlet and an outlet, a pressure tank connected to said outlet and adapted to contain liquid, a priming chamber connected to said inlet, means providing communication between said tank andsaid chamber, and an air inlet in said chamber.

5. A device for compressing air comprising a centrifugal pump having an inlet and an outlet, a pressure tank connected to said outlet and adapted to contain liquid, at priming chamber connected to said inlet, means providing regulable communication between said tank and said chamber, and an air inlet in said chamber.

6. A device for compressing air comprising a centrifugal pump having an inlet and an outlet, a pressure tank connected to said outlet, a priming chambericonnected to said inlet, means for supplying liquid to said chamber, and an air inlet in said chamber.

Signed by me this 11th day of October,

GALE L. FERGUSON.