US902351A

US902351A - Hydraulic motor.

Info

Publication number: US902351A
Application number: US39811707A
Authority: US
Inventors: Anton E Weingartner
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-18
Filing date: 1907-10-18
Publication date: 1908-10-27
Anticipated expiration: 1925-10-27

Description

A. E'. WEINGARTNER.

HYDRAULIC MOTOR.

APPLIOATION FILED 001:.1a,'19 07.

Patented 0011221908.

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A. E. WEINGARTNER.

HYDRAULIC MOTOR.

APPLICATION FILED 001:. 18, 1907.

902,35 1 Patented Oct. 27, 1908.

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HYDBAULIG MOTOR. APPLICATION 211.111) 00118; 1907.

Patented 0011221908.

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ANTON E. WEINGARTNER, OF BETHLEHEM, PENNSYLVANIA.

HYDRAULIC MOTOR.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed. October 18, 1907. Serial No. 398,117.

To all whom it may concern:

Be it known that I, ANTON E. WVEINGART- NER, a citizen of the United States, residing at Bethlehem, in the county of Northampton and State of Pennsylvania, have invented certain new and useful Improvements in Hydraulic Motors; 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 art to which it appertains to make and use the same.

My invention relates to hydraulic motors constructed so that they may also be operated by steam or compressed air.

It has for its object to provide a simple and inexpensive construction of double cylinder, double acting motor wherein the motor fluid is fed through a single inlet and discharged through a single outlet.

The invention consists in the features of construction and combinations of parts hereinafter described and specified in the claims.

In the accompanying drawings illustrating the preferred embodiment of my invention: Figure 1 is a plan view of the engine. Fig. 2 is an enlarged central longitudinal section. Fig. 3 is a central vertical cross section when the pistons are midway of their strokes. Fig. 4 is a cross section of the cylinder casting taken on the line w02 of Fig. 2. Fig. 5 is a similar section on the line y-y of Fig. 2, and Fig. 6 is a cross section of said cylinder casting taken through the left hand valve way in Fig. 2. 1

Referring more particularly to the drawings, the cylinder casting contains twin piston cylinders 1 and 2 in which are mounted respectively the pistons 3 and 4:. Intermediate of said cylinders said casting is provided with valve ways 5 and 6, one of which is arranged near each end of said casting. Said valve ways are vertically disposed and open on upper and

lower chambers

7 and 8 arranged in the central portion of said casting between said cylinders. One of said valve ways (the left hand one in Fig. 2) also communicates with the inlet passage 9 which is located between said upper and lower chambers. The other valve way communicates with the outlet passage 10 which is arranged at that end of the casting in the same manner that the inlet is at the other end.

The upper chamber 7 communicates with the cylinders 1 and 2 through ports 11 and 12 respectively, arranged at opposite ends of said chamber whereby the motor fluid from said chamber is fed into opposite ends of the two cylinders at the same time. The lower chamber communicates with the cylinders through ports 13 and 14 also arranged at opposite ends of said chamber and so that at each end of the casting there is a port leading from the upper chamber to one cylinder and a port leading from the lower chamber to the other cylinder. The valves 15 and 16 are provided with grooves or circumferential recesses 15 and 16, respectively, in their outer faces. Said grooves are wide enough to comprehend or extend across said inlet or outlet passage, as the case may be, and the opening into either of the

chambers

7 or 8.

Between the two valve ways and also intermediate of the two piston cylinders is arranged a vertical shaft 17 on the upper end of which is mounted a cross beam 18 pivoted to swing in a horizontal plane. On the lower end of said shaft another cross beam 19 is secured. The cylinder casting has a sleeve 20 extending upward around said shaft to a point somewhat above the top of said cylinders and valve ways. The valves are re ciprocated by a disk-shaped member 21 having a central perforation 22 through which extends the sleeve 20 to which said disk is pivoted at 23 whereby the latter is adapted to move in a vertical plane. Said disk is provided with opposite radial projections 24: and 25, respectively, which are rounded, as shown in Fig. 2, at the points of engagement with nuts 26 adjustably screwed on the valve stems 27 and 28. The radial projection 2st is extended beyond the rounded portion, as at 29.

The upper cross beam 18 is formed with a laterally extending segment 30 on the inner face of which is arranged a ledge 31. The projection 29 on the disk is adapted to be locked either above or below said ledge 31 during each movement or reciprocation of the cross beam 18. There is sufficient space at each end of the ledge, however, to permit said disk to be reversed at the end of each of said reciprocations of said cross beam. A spring-pressed pin or stud 32 mounted vertically in a socket 33 formed in said upper cross beam and bearing upon said disk, first on one side and then on the other side of its pivot as said beam reciprocates, serves to automatically reverse said disk when its projection 29 is released from the ledge 31 at the end of each stroke. It will be noted that with this arrangement, one of the valves will always be up when the other is down. Each of the piston rods 34: and 35 is connected to a

cross head

36 and 37 respectively. Connecting rods 38 and 39 extend from the cross head 36 to corresponding ends of the upper and lower cross beams while other connecting rods 40 and 411 connect the cross head 37 with the other ends of said cross beams.

The operation of the motor is briefly as follows: When the various parts are in the positions shown in Figs. 1 and 2, wherein the piston 3 in the forward cylinder 1 is beginning its stroke to the right and the piston 4k in the rear cylinder 2 is commencing its stroke to the left, the motor fluid is fed through the inlet 9 and the groove in the valve 15 to the upper chamber 7 from whence it passes via port 11 to the left hand end of the cylinder 1 and via port 12 to the right hand end of the cylinder 2. During this action of the motor when the piston 3 is moving to the right and the piston 1 to the left, the motor fluid in the cylinders ahead of said pistons escapes through the ports 13 and 14 to the lower chamber 8 and out by way of the groove in the valve 16 to the discharge 10. Vhen the pistons reach the ends of their strokes in the direction described, the upper cross beam will have turned until the ledge 31' releases the projection 29 of the disk 21 whereupon said disk is automatically re-. versed by the pressure of the stud 32 thereon, said stud having been carried around with said cross beam until it bears upon the opposite end of said disk from that shown in Figs. 1 and 2. The reversing of the disk 21 reverses the valves as described whereby on the return stroke of the pistons the motor fluid is fed into the lower chamber 8 and the discharge is effected through the upper chamber, the ports 13 and 1 1 acting as inlets and ports 11 and 12 as outlets. From this explanation, it will be readily seen how the successive strokes of the pistons are made by using the upper and lower passages and ports therein alternately as inlets and outlets. It will also be noted that the piston in one cylinder will run just as well alone when the other cylinder is plugged up.

I claim:

1. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever mounted to move in a vertical plane and having its ends operatively connected to said valves, a pivoted cross beam mounted to swing in a horizontal plane, and means carried by said cross beam to automatically reverse said lever at the end of each movement of said piston.

' 2. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever mounted to move in a vertical plane and having its ends operatively connected to said valves, a pivoted cross beam mounted to swing in a hor1- zontal plane, means carried by said cross beam to automatically reverse said lever at the end of each movement of said piston and to lock said lever during each movement of said piston.

3. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever having its ends operatively connected to said valves, a pivoted cross beam, means carried by said cross beam to automatically reverse said lever at the end of each movement of said piston, and a segment on said cross beam provided with a ledge adapted to alternately engage the top and bottom of an extension. of said lever whereby the latter is locked during each movement of said cross beam.

4. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever having its ends operatively connected to said valves, a pivoted cross beam, a spring pressed stud carried by said cross beam and bearing upon said lever, and means to actuate said cross beam in accordance with the movement of said piston whereby said stud is alternately brought into engagement with said lever at each side of its pivot.

5. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever having its ends operatively connected to said valves, a pivoted cross beam, a spring pressed stud carried by said cross beam and bearing upon said lever, a cross head on the piston rod and a connecting rod from said cross head to said cross beam whereby the latter is actuated to alternately bring said stud into engagement with said lever at each side of its pivot.

6. In a motor of the character described, a cylinder, a piston in said cylinder, two valves controlling the supply and exhaust, an intermediately pivoted lever having its ends operatively connected to said valves, a pivoted cross beam, a spring pressed stud carried by said cross beam and bearing upon said lever, means to actuate said cross beam in accordance with the movement of said piston whereby said stud is alternately brought into engagement with said lever at each side of its pivot and said lever is automatically reversed, and a segment on said cross beam provided with a ledge adapted to alternately engage the top and bottom of an extension of said lever whereby the latter is locked during each movement of said cross beam.

7 In a motor of the character described, a casting containing a cylinder, a piston in said cylinder, said casting having two valve ways therein, inlet and outlet passages and upper and lower chambers having ports leading to opposite ends of said cylinder, valves in said valve ways and means to operate said valves to alternately feed and exhaust through each of said chambers.

8. In a motor of the character described, a casting having twin cylinders, pistons in said cylinders, said casting having two valve ways therein, inlet and outlet passages and upper and lower chambers extending between said cylinders and having ports leading to opposite ends thereof, valves in said valve ways and means to operate said valves to alternately feed and exhaust through each of said chambers.

9. In a motor of the character described, a casting containing a cylinder, a piston in said cylinder, said casting having two valve ways therein, upper and lower chambers having ports leading to opposite ends of said cylinder, an inlet passage arranged between said chambers at one end, an outlet passage similarly arranged at the other end of said casting, valves arranged in said valve ways, each valve having a circumferential groove adapted to comprehend said inlet or outlet passage and one of said chambers, and means to operate said valves to alternately feed and exhaust through each of said chambers.

10. In a motor of the character described, a casting having twin cylinders, pistons in said cylinders, said casting having two valve ways therein, upper and lower chambers extending between said cylinders and having ports leading to opposite ends thereof, an inlet passage arranged between said chambers at one end, an outlet passage similarly arranged at the other end of said casting, valves arranged in said valve ways, each yalve having a circumferential groove adapted to comprehend said inlet or outlet passage and one of said chambers, and means to operate said valves to alternately feed and exhaust through each of said chambers.

11. In a motor of the character described, a casting containing a cylinder, a piston in said cylinder, said casting having two valve ways therein, inlet and outlet passages and upper and lower chambers having ports leading to opposite ends of said cylinder, valves in said valve ways, an intermediately pivoted lever having its ends operatively connected to said valves, means to automatically reverse said lever at the end of each movement of said piston whereby said valves are adapted to alternately control the supply and exhaust through said chambers, and means to lock said lever in position during each movement of said piston.

In testimony whereof, I aflix my signature, in presence of two witnesses.

ANTON E. WVEINGARTNER. Vitnesses:

WALTER S. BROWN, FRITHIOF LUNDAHL.