US606732A

US606732A - Signors

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Publication number: US606732A
Authority: US
Publication date: 1898-07-05
Anticipated expiration: 1915-07-05

Description

No. 606,732. Patented July 5, I898. A. G. NOACK &. L. S. GROSSMAN.

HYDRAULIC AIR COMPRESSOR.

(Application filed Dec. 24, 1896,) (No Model.) 2 Sheets-Sheet I.

WITNESSES:

No. 606,732. v Patented July 5, I898. A. G. NOACK &. L. S. GRUSSMAN.

HYDRAULIC AIR COMPRESSOR.

(Application filed Dec. 24, 1896.) (No Model.) 2 Sheets-Sheet 2.-

& mu"

M l W WITNESS-E8 //v 1/54 7005 Mzza ATTORNEY.

UNITED STATES PAT NT Orrrcn..

ADOLPH G. NOAOK AND LORENZ S. GROSSMAN, OF CLEVELAND, OHIO, AS-

SIGNORS, BY MESNE ASSIGNMENTS, TO OLEMENT L. V. EVANS, TRUSTEE, OF THE BERNER-MAYER COMPANY, OF SAME PLACE.

HYDRAULIC AIR-COM PRESSOR.

SPECIFICATION forming part Of Letters Patent No. 606,732, dated July 5, 1898.

Application filed December 24, 1896. Serial No. 616,839. (No model.)

T w i m y r end of the valve-chamber is open and is a Beitknown that we',AD 0LPH G. NOACK and short distance above the base of the valve- LORENZ S. GROSSMAN, citizens of the United casing, so as to form a water-outlet port, States, and residents of Cleveland, county which is controlled by the main controlling of Cuyahoga, and State of Ohio, have invalve and which communicates with the vented certain new and useful Improvements waste-port 11, through which the water-outin Hydraulic Air -Compressors, of which the let communicates with the cylinder, through following is a specification, the principle of the bottom of the same. A port 12 extends the invention being therein explained and from the upper end of the piston-chamber to IO the best mode in which wehave contemplated near the lower end of a primary-valve cham- 6o applying that principle,so as to distinguish ber 13, which has a valve-seat 14 at its lower it from other inventions. end, which connects with the water-outlet The annexed drawings and the following through a port 15. A valve 16 has an actudescription' set forth in detail one mechanating-piston 17, which reciprocates within the r 5 ical form embodying the invention, such deactuating-piston chamb'er,and has apiston 18 tail construction being but one of various meat its lower end which reciprocates within chanical forms in which the principle of the the valve-chamber. The water-inlet opens invention may be used. into the lower end of the actuating-piston In said annexed drawings, Figure I reprechamber. The stem of the valvehas an axial 2o sents a vertical section of our improved hybore 19, which extends out through one side draulic air-compressor; Fig. II, an enlarged of the same into a circumferential groove or vertical section of the valve mechanism of the recess 20, which is covered by a sleeve 21, same, illustrating the main controlling-valve which secures the packing of the actuating in position for exhausting the water out of valve-piston. Said sleeve has a nipple 22,

2 5 the cylinder; Fig. III, a similar section illusprovided with a strainer 23, which nipple trating the main controlling-valve in position communicates with the axial bore, so that wafor admitting water into the cylinder, and ter may pass through said strainer, nipple, Fig. IV a plan view of the base of the comand bore into the upper end of the actuatingpressor. piston chamber. The valve 18 has a seat 30 The air-compressor has a cylinder 1, a base against the base of the pump and will when 2, and a top 3. The cylinder is preferably of in its lower position close the outlet-port of glass, although it may be made of any suitthe valve-chamber and will cover the waterable material. The base is formed with a outlet. A valve 24; has a seat at the lower water-inlet 4, which may be connected to a end of the primary-valve chamber 13 and has 3 5 water-service pipe or other source of water sufficient play, besides being of a less diameunder pressure, and with a water-outlet 5, ter than the said valve-chamber, to admit of which may be suitably connectedto a wastethe port 25 0f the passage 12 to connect with pipe. Avalve-casing6is secured to the base the passage out through the bottom of the within the cylinder and has an actuating-pisprimary-valve chamber. Thevalve 18 has a 0 ton chamber 7 and a valve-chamber 8, said stem 25, which slides in a packing-box at the valve-chamber being arranged below the pistop of the valve-chamber. A lever 27 is fulton-chamber and in axial alinement with the crumed at one end upon the valve-casing and same and being of a smaller diameter than hasaslot 28,throughwhichthe primary-valve said piston-chamber. The water-inlet is constem projects. Said stem is provided with 45 nected to the lower end of the piston-chamtwo shoulders 29 or any other similar style of 5 her by a water-passage 9, and the valveshoulders, so that the valvestem will be chamber has a series of openings 10, which shifted when the lever is either raised or lowextend through the walls of the chamber and cred. Theoutcr end of the leveris formed with form a port communication between the an eye 30, through which the lower end of a 50 valve-chamber and the cylinder. The lower rod 81 passes. Said lower end is provided with an enlargement 32,whieh will engage the eye of the lever and raise the same when the rod is raised. A float 33 has play upon said rod and may rise and fall with the water which passes into the cylinder. The upper end of the rod has a stop or shoulder 3%, which may be engaged by the float, so that the rod may be raised when the float arrives at the uppermost end of its stroke. The top 3 of the pump has an air-inlet 35, which is controlled by a valve 36, and has also at its center a valveeasing 37, the upper end of which is provided with an air inlet and outlet 3 controlled by an inlet-valve 39 and an outlet-valve 4.0. A nipple 41 is provided for convenient connection of a tube or whatever other connection may be made between the air-compressor and the place where compressed air is required. A piston 42 plays within the valve-casing 37 and is formed with a cup 43 at its upper end, which has communication with an axial bore 'l-lthrough the piston. A spring 45 bears against the upper end of said piston, serving to force it down. A valve 46 has a seat against the lower end of the axial bore it and rests against the upper end of the float-rod 81. A yoke -17 extends from the under side of the piston and has the float-rod passing through it. Stop-sc ews l8 are provided in the valve-casing, so as to stop the piston at its downward niovemen t,cansed by the spring. The float-rod is provided with a nut 4.),which may be engaged by the yoke, so that the floatrod maybe drawn upward when the piston is forced upward.

In practice when the compressor has its water-inlet connected to a source of water under pressure and the waste is suitably connected to discharge the exhaust-water we will, [or the sake of illustration, presume that the parts of the compressor are in the position illustrated in Fig. 1. YVhen the parts are in such position, the water enters through the water-inlet into the lower end of the piston-chamber and upper end of the valveehamber and passes through the openings 10 into the cylinder, raising the lloat. The primary valve is seated against its seat, being held there by the pressure from above of the inlet-water,and the inlet-water passes through the passage in the actuating-piston of the main controlling-valve, so that the pressure against said piston will hold the main valve against its seat, closing the outlet. lVhen the float arrives at the uppermost end of its stroke, itwill strike the shoulder St and raise the float-rod. This will cause the upper end of said rod to raise the valve 46 against its seat, so that the water still rising in the cylinder may force the piston -l2 upward against the force of the spring. The rising of said piston by the action of the water will cause the yoke of the piston to engage the nut 49, so that the float-rod will be positively raised. By the arrangement of the piston and valve for the same at the outlet for air from the cylinder water will be prevented from passing up through the air-outlet valve. Should water, by some accident or other, pass the valve and rise upward into the air-outlet, the cup of the piston will receive such water, which may thereupon be drawn back into the cylinder through small passages 50, provided in the bottom of the cup. \Vhen the floatrod is raised, the enlargement at the lower end of said rod will engage the primary-valveeontrolling lever and raise the same, thereby raising the primary valve. As soon as the primary valve is raised connection is made between the upper end of the valve-actuating-piston chamber and the waste, so that the pressure of the inlet-water from below will raise the main controlling-valve piston and the valve. This will open the outlet through the base of the cylinder, causing the water to flow out and the iloat to sink with the water. As soon as the float strikes the primary-valve-controlling lever the primary valve will be seated, closing the outlet from the primary-valve chamber. This will cause the inlet-water to pass through the main controllingvalve-actuating piston and stem, causing the piston and valve to move downward, closing the water-outlet. As soon as the water-outlet is closed the water-inlet into the cylinder is uncovered by the main controlling-valve, and the float will again rise.

The air-inlet 35 is provided so as to admit air into the cylinder as soon as the waste for the actuating-water has been opened. If said inlet were not provided, the compressed air at the top of the cylinder might keep the airinlet valve 39 closed, so that the water would not exhaust, and no air would come into the pump. A cup shaped guide 5.] is formed upon the top of the valve-easing, and the lower end of the float-rod rests in said guide when the rod is lowered. The guide will prevent the rod from being displaced when the compressor is transported from one place to another and will retain the rod in its upright position. The channel which connects the upper portion of the main controlling-piston chamber with the primary-valve chamber has a sufficient capacity exceeding the capacity of the passage through the actuating-piston to admit of water being discharged from the chamber faster than it can enter.

The main controlling-valve is at both extremes of its throw within the valve-chamber, so that it will at all times be fully and truly guided in its stroke and will not be liable to get out of alinement and to thus either fail to close the water-ontlet upon its downstroke or to get caught by the edge of the valvechamber upon its upstroke. As the by-pass provided for the inlet-water through the axial bore in the main controlling-valvc-actuating-piston stem permits said actuating-piston to be packed and to thus snugly fit within its cylindrical chamber the piston and valve will be perfectly guided in their stroke without danger of deviating from the axial line and the consequent jamming and stopping of tive action of the compressor, as the primary the piston and valve, such as is liable to hap- .pen and does happen in similar valve structures where the controlling-valve is not at all times guided by a chamber and where a water by-pass from the opposite sides of the actuating-piston is formed by making such piston of a smaller diameter than its chamber and thereby rendering it liable to wabble.

As the primary valve is of smaller diameter than the valve-chamber, it is only necessary to raise the valve in the slightest degree to uncover the outlet-port and thereby connect the outlet-port from the valve-controlling-piston chamber. This fact admits of the employment of the lever for increasing the slight power of the rising or falling fioat at the extremes of its stroke to overcome the frictional and other resistance to the movement of the primary valve and its stem. The slight degree of movement required for the primary valve also insures a very sensivalve may be raised and seated even though the float should not on account of back pressure by air decrease in the actuating-water pressure or for other reason fully complete its stroke.

Other modes of applying the principle of our invention may be employed for the mode herein explained. Change may therefore be made as regards the mechanism thus disclosed, provided the principles of construction set forth respectively in the following claims are employed.

We therefore particularly point out and distinctly claim as o11r,invention 1. In a hydraulic air-compressor, the com bination of an air-and-water chamber provided with a water waste-port in its bottom, a main controlling-valve chamber supported a distance above said waste-port to form a water-outlet between its lower edge and the waste-port and having communication at its upper end with the water-inlet and having a port in its side communicating with the interior of the air-and-Water chamber, a main controlling-valve having play in said valvechamber and constructed of such length as to remain partly or entirely within the valvechamber when lowered to close the wateroutlet and cover the waste-port and to uncover the port in the side of the Valve-chamber or raised to uncover the outlet and Waste-port and to cover the port in the side of the valvechamber, a piston and chamber connected to actuate said main controlling-valve, and a primary valve controlling the water for said piston and chamber and connected to be actuated by the rise and fall of the water in the air-and-water chamber, substantially as set forth.

2. In a hydraulic air-compressor, the combination of an air-and-water chamber, an actuating-piston chamber having the waterinlet at its lower end and a water-outlet at its upper end, a main controllingevalve chamber having its upper end open into the bottom of the piston-chamber and having a port in its side opening into the air-and-water chamber and forming a water-outlet at its lower end, a main controlling-valve in said valvechamber and an actuating-piston provided with a packing and sliding in the pistonchamber and connected to the valve by a stem having a passage extending through its side and up through the top of the piston, and a primary valve controlling the outlet from the top of the piston-chamber and connected to be actuated by the rise and fall of water in the air and-Water chamber, substantially as set forth.

3. In a hydraulic air-compressor, the combination of an air-and-water chamber, a main valve controlling the inlet and outlet of the actuating-water into and out of the chamber, an actuating-piston chamber connected to the inlet at one end and having an outlet at the other end, an actuating-piston reciprocating in said chamber and connected to the main controlling-valve and provided with a water-passage through it, a primary-valve chamber having an outlet at its end formed with a valve-seat and having the outlet from the piston-chamber opening into it, and a primary valve of less diameter than the primary-valve chamber playing against the valve-seat and connected to be actuated by the rise and fall of water in the air-and-water chamber, substantially as set forth.

4:. In a hydraulic air-compressor, the combination of an air-and-water chamber, a main valve controlling the inlet and outlet of the actuating-water into and out of the chamber, an actuating-piston chamber connected to the inlet at one end and having an outlet at the other end, an actuating-piston reciprocating in said chamber and connected to the main controlling-valve and provided with a waterpassage through it, a primary-valve chamber having an outlet at its end formed with a valve-seat and having the outlet from the pis ton-chamber opening into it, a primary valve of less diameter than the primary-valve chamber playing against the valve-seat, a lever fulcrumed at one end and having movable connection with the Valve-stem near said end, and a float connected to said lever to raise the same at the upper end of its upstroke and to depress the same at the lower end of its downstroke, substantially asset forth.

5. In a hydraulic air-compressor, the com bination of a valve-actuating lever, a floatrod and a float upon the same, said rod sliding through an opening in said lever and having a stop'at its end for engaging said opening, and a cup-shaped guide which registers with the end of said float-rod and receives said stop when the rod is lowered, substantially as set forth.

6. In a hydraulic air-compressor, the combination with a float and float-rod constructed to actuate the valve mechanism, said rod having a stop at its upper end and constructed to be lifted and lowered at the two extremities of the stroke of the float, of a valve-casing in the top of the coinpressor-cylinder and having valve-controlled air inlet and outlet, a piston in said casing and having an axial passage and a yoke upon its under side through which the upper end of the float-rod passes and which engages the stop upon the same, a spring hearing downward against the pistomand an upwardly-closin g valve for the passage through the piston and resting against the upper end of the float-rod, substantially as set forth.

7. In a hydraulic air-compressor, the combination with a float and float-rod constructed to actuate the valve mechanism, said rod having a stop at its upper end and constructed to he lifted and lowered at the two extremities of the stroke of the float, of a valve-casing in the top of the compressor-cylinder and having valve-controlled air inlet and outlet, a piston in said casin g and having an axial passage and a yoke upon its under side through which the upper end of the float-rod passes and which engages the stop upon the same, a spring bearing downward against the piston, an upwardly-closing valve for the passage through the piston and resting against the upper end of the float-rod, and an auxiliary air-inlet valve in the top of the cylinder, substantially as set forth.

In testimony that we claim the foregoing to be our invention we have hereunto set our hands this 12th day of October, A. D. 1800.

ADOLPII G. NOAOK. LORENZ S. GROSSMAN. \Vitnesses:

W n. Sncnnn, E. I. BROWN.