US1181347A - Air and like fluid compressor and exhauster. - Google Patents

Description

C. L. DE W. READER.

AIR AND LIKE FLUlD COMPRESSOR AND EXHAUSTER.

APPLICATION FILED MAR.9,1914- RENEWED FEB. 8.1916.

Patented May2,1916. 2 SHEETSSHEET1 Q m m C. L. DE W. READER.

' AIR AND LIKE FLUID COMPRESSOR AND EXHAUSTER.

APPLICATION FILED MAR-9.19M. RENEWED FEB. 8. I916.

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App1ication filed Mar-ch 9, 1914, Serial No. 823,526.

UNITED ETATEE PATENT QI I IQE.

CHARLES LEONARD DE WILDE READER, OE HURS-LEY, NEAR WINCHESTER, ENGLAND.

AIR AND. LIKE FLUID COMPRESSOR AND EXHAUSTER.

0 all whom it may concern:

Be it known that L'CHARLES LEONARD DE IVILDE READER, a subject of His Majesty the King of England, residing at Hursley, near Winchester, in the county of Hants, Kingdom of England, have invented certain new and useful Improvements in or Relating to Air and like Fluid Compressors and EX- hausters, of which the following is a specification.

This invention relates to improvements in air and like fluid compressors and exhausters and their valves and it is designed to render them more eflicient in operation by improving their general construction and the arrangement of their valves.

In my invention I use multiple ball nonreturn valves both for the inlet and the outlet and I arrange these in pairs as single units in one or more places about the cylinder.

My invention is hereinafter clearly described in one of its preferred forms with reference to the accompanying drawings in which Figure l is a sectional side elevation of an air compressor; Fig. 2 is a plan view thereof with parts broken away and removedto disclose more distant parts. Fig. 3 is a detail sectional view of the double or combined inlet and outlet valve.

As shown the machine comprises a single cylinder 64 which is mounted in any convenient manner ona crank case or base I) in which is journaled the crank shaft 0 from which the piston (Z receives its motion. At a convenient number of places around the top of the cylinder, determined in general by its dimensions, I provide a number of pairs of multiple non-return ball valves 9 it, one 9 of each pair serving for the inlet of the air or other gas and the other it for the outlet of the same. I preferably as shown mount these valves in recesses provided with seating flanges 6 formed in the flanged upper portion a of the said cylinder. The nonreturn ball valves employed are preferably formed with reversible seatings and the seating of the lowermost or inlet valve rests directly upon the seating flange proper 6 while the upper valve seating is spaced therefrom by intermediate washers or facing pieces. These seatings are each so formed that they have numerous passages through them each terminating at each end in a valve seat so that either face of the seating is utilizable Specification of Letters Patent.

Patented May 2, 1916.

Renewed February 8, 1916. Serial No. 77,021.

to support the balls, wherefore the seating becomes a reversible seating. The two valve seatings are together held in place in their recesses with the passages in alinement by means of vertical bolts 2' (four being shown in the present instance) which engage with their heads countersunk holes in an upper ring 7' and which pass through holes or grooves formed partially in the side edges of the valve seats and the interior side of the recesses in which the valves are housed. The said inlet and outlet valves 9 and h are so spaced from each other and disposed in their recesses that flat narrow slots or ports 71: communicating with the interior of the cylinder (4 lead to the space between the two seating rings. Thus nominally all the balls rest by gravity on their seatings and those on the lower seating lift to admit the air on the down or out stroke of the piston (Z and those on the upper seating lift as the compressed air or gas is expelled. The upper valve seatings form a limiting stop with the then lower or inactive valve seats receiving the balls of the lower seating as they move away from their seats while the movement of the balls away from the upper seatings is limited by the underside of a water jacketed cover plate Z containing the delivering port m.

The valve seatings are so arranged that upon the suction stroke of the piston, the balls of the inlet valves Will rise up directly into the corresponding countersunk seatings of the delivery valve, which is so placed immediately above and kept in this position by the vertical bolts 2'. p

I prefer as shown in the drawings to drive the piston (Z by means of an eccentric a secured to the shaft 0. This eccentric n rotates in a block 0 which is thereby caused to reciprocate in guide p formed in an enlargement g on or connected to the lower end of the piston. Obviously two or more cylinders may be mounted upon a common inclosed crank chamber or bed plate.

What I claim as my invention and desire to secure by Letters Patent of the United States is 1. An air compressor comprising a cylinder and a piston with the cylinder provided at one end with common inlet and outlet means including a pair of valves one opening toward the cylinder and the other away therefrom, and each valve comprising a broad, fiat group of closely associated balls and seats therefor with the outlet valve spaced from the inlet valve by a distance corresponding to the thickness of the conduit between the pair of valves and the cylinder and the outlet valve being provided with receptaclesfor the balls of the inlet valve constituting stops for said balls.

2. An air compressor comprising a cylinder and piston with the cylinder provided at one end with common inlet and outlet means including a circular series of matching inlet and outlet valves, each valve comprising a laterally extended group of balls and a reversible seating with the seats of the outlet valve directed toward the inlet valve alining with the seats of the inlet valve, whereby the balls of the inlet valve find lodgment in those seats of the outlet valve directed toward the inlet valve when said inlet valve is open.

3. An air compressor comprising a cylinder and a piston with the cylinder provided at one end with flat narrow slots leading therefrom and with a delivery port common to the slots, and a pair of multiple non-return ball valves for each slot, one valve member of each pair constituting an inlet member and the other an outlet member, and said outlet member having seats for the ball valves of the inlet member, the compressor being also provided with a cover plate defining one wall of the outlet and serving as a limiting member for the opening movements of the balls of the outlet member of each pair of valves.

4:- An air compressor comprising a cylinder and a piston, the cylinder having at one end flat inlet and outlet means, and a circular series of multiple non-return ball valves therefor arranged on opposite sides of the flat inlet and outlet means, one valve of each pair controlling the inlet to the cylinder and the other the outlet therefrom, and each valve comprising a laterally extended group of balls and seats therefor, and the compressor being also provided with a cover plate defining one'wall of the outlet beyond the outlet valves and serving as a limiting member for the opening movements of the balls of the outlet valves.

5. An air compressor comprising a cylinder and a piston with a common fiat inlet and outlet at one end of the cylinder, and means for controlling the inlet and outlet comprising a closely associated pair of multiple non-return ball valves, each comprising a plurality of balls and a seating therefor having through passages formed with seats for the balls, the passages through one member being in line with those through the other, whereby the passages of one member serve as stop receptacles for the ballsof the other member, and said two members being spaced apart by a distance less than the diameter of the balls, and a cover plate associated with and constituting, a stop member for the set of balls belonging to that valve member forming a stop for the ball valves of the other member.

6. An air compressor comprising a cylinder and a piston, the cylinder having a common inlet and outlet passage at one end with valves controlling said common inlet and outlet and comprising two alined laterally extended seatings, each provided with a corresponding number of ball valves individual thereto, one of the seatings being on one side of the common inlet and outlet passage for the cylinder, and the other seating being on the other side thereof, and a stop member for the ball valves of one seating, the other seating being associated with the first-named seating to serve as a stop member for the balls thereof.

7. An air compressor comprising a cylinder and a piston, the cylinder having a common inlet and outlet at one end with valves controlling said common inlet and outlet and comprising two alined laterally extended seatings, each provided with a corresponding number of ball valves individual thereto, one of the seatings being on one side of the common inlet and outlet for the cylinder and the other seating being on the other side thereof, and a stop member for the ball valves of one seating, the other seating being associated with the firstnamed seating to serve as a stop member for the balls thereof, and both seatings being reversible.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES LEONARD DE WILDE READER.

lVitnesses:

F. J. CLEVELAND, C. J. WITHERS.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, D. G.

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