US748113A - Hydraulic ram. - Google Patents

Description

. PATBNTED DEG. 29, 190s. s. s. SMITH. l HYDRAULIC RAM.

APPLICATION FILED PEB. 6. 1903.

N0 MODEL.

UNITED STATES Patented December 29, 1903.

PATENT OEEICE.

SANDIE S. SMITH, OF CHESTER, PENNSYLVANIA, ASSIGNOR TO NIAGARA HYDRAULIC ENGINE COMPANY, OF CHESTER, PENNSYLVANIA, A COR- PORATI ON OF PENNSYLVANIA.

HYDRAULIC RAM.

SPECIFICATION forming part of Letters Patent No. 748,113, dated December 29, 1903.

duplication tiled February 6 1903. Serial No. 142,184. CND model.)

.To all whom, t may concern.-

Be it known that I, SANDIE S. SMITH, a citizen of the United States, residing at Chester, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Hydraulic Rams, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to hydraulic rams, and has for its object to improve the simplicity and eflciency of the device, it being in the general nature of an improvement upon the construction set forth in Letters Patent No. 529,914, granted November 24, 1894, to Jones and Wetmore.

To this end my invention consists in certain novel features, which I will now proceed to describe and then will particularly point out in the claims.

In the accompanying drawings, Figure lis a plan view of a rain embodying my invention, the same being shown partly in horizontal section. Fig. 2 is a vertical sectional View taken on the line ma; of Fig. l and looking in the direction of the arrows, and Fig. 3 is a sectional view taken on the line 'y y of Fig. 2 and looking in the direction of the arrows.

In the said drawings, 1 indicates the base of the ram, which is preferably formed in a single piece and has provided therein at one end a valve-chamber 2 for the impetusvalve and at the other end a valve-chamber 3 for the main valve.

4 indicates an inlet-opening to which the drive-pipe is connected, and 5 indicates a passage connecting the valve- chambers 2 and 3.

The valve-chamber 2 is closed at its upper end by a cover 6, secured in place in 1 he manner hereinafter described auddiaving formed therein a waste-outlet opening 7, controlled by the impetus-valve 8. This latter valveis of a disk-like form and of greater diameter than the opening 7, which it closes when raised.

9 indicates the impetus-valve stem, which travels through a combined stop and guide lO, supported by legs 11 on top of the cover 6. The upper end of the valve-stem 9 is threaded, as indicated at 12, to receive one or more nuts 13, which may be adjusted so as to limit the downward movement of the impetus-valve, and thus regulate the operation of the ram in a well-known manner.

Heretofore an excessive waste of Water has occurred at the im petus-valve, owing to the water iiowing too freely around the valve before it is lifted. To prevent this, I provide in the upper portion of the valve-cham ber 2, below the Valve 3, a diaphragm 14, having opposite the valve an opening 15, which serves to restrict the flow of the waste water and cause it to flow directly against the under side of the valve. In this way the flow of water being restricted the amount of waste is less, and as the water acts more efficiently and directly against the valve it is closed with less waste.

The valve-chamber 3 of the main valve is circular in form, being surrounded by a cylindrical wall 16, which is in turn surrounded by an annular space 17 between the wall 16 and the circular outer wall 18 of the body of the ram. It is true that at one side, Where the passage 5 connects with the chamber 3, these annular walls and spaces are interrupted; but with this exception their form is as described. The main valve 19, which controls the outlet of the valve-chamber 3, is located at the top of said valve-chamber, where the said outlet is located, and it consists of afleXible disk, of rubber or the like, secured at its center and free at its margin. To secure this valve in position, I employ aspider 20, having an annular marginal portion 21, seated on top of the Wall lo', a packing 22 being interposed between them. Both the spider and the wall have projected lugs 23 to receive bolts 24, by which the spider is held in place. Arms 25 extend inward from the annular portion to a central sleeve 26, which receives a bolt 27, which fastens the center of the disk 19 to the spider. This is preferably eected by means of a conical stop 28, interposed between the bolt-head and disk, said conical stop serving to limit the opening movement of the disk valve in an obvious manner.

It will be seen that the main valve and the outlet which it controls are so located that the water issuing from the valve-chamber 3 is equally distributed in all directions to the annular space 17. Outlet connections 29 lead from this annular space on the three free sides thereof, so that the delivery-pipe may be connected to any side of the deliverychamber formed by the annular space l7,with an assurance that an equal supply of water will be delivered to said pipe wherever it may be connected.

30 indicates the air-chamber, which is provided atits lower end with a horizontal flange 3l. The base is provided with a corresponding flange 32, and these flanges are provided with marginal notches 33, which register with each other and are adapted to receive the connecting-bolts 34. It will be seen that these bolts may be readily slipped into position and as readily removed without necessi- YI form an air-inlet port 39 in that portion of the base'lying between the two valve-chambers and above the connectingpassage The lower end of this port opensinto the top or highest part of the connecting-passage, and it extends thence upward and outward to the vertical side of the intermediate .part of the base, in which it has its external opening. By reason of this location the said airinlet port is less liable to become clogged or obstructed, its outer end being unexposed, while its connection with the connecting-passage 5 is such as to insure the maximum efficiency of operation.

I do not wishto be understood as limiting myself to the precise details of construction hereinbefore described, and shown in the accompanying drawings, as it is obvious that said details may be modified without departing from the principle of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a hydraulic ram, the combination, with a valve-chamber havinga Vertical wasteoutlet at the tup, and a diaphragm located below said outletand havinga restricted opening in line therewith, the space between said diaphragm and the top of the chamber being free and unobstructed, of a disk valve located in said space and having a diameter less than that of the valvechamber and greater than that of the waste-outlet, its lower face and edge being exposed to the water entering and passing through said space, and

its range of movement being such as to per-V mit it to close the Waste-outlet in the top of the valve-chamber when fully raised, substantially as described.

2. In a hydraulic ram, the combination, with a main valve-chamber having a substantially circular wall and au outlet-valve at the top, of a body surrounding the same and separated therefrom to form a substantially annular delivery-chamber surrounding the valve-chamber and below the outlet thereof, substantially as described.

3. In a hydraulic ram, the combination, with a main valve-chamber having a substantially circular wall and an outlet-valve at the top, of a body surrounding the same and separated therefrom to form a substantially annular delivery-chambersurrounding the valve-chamber and below the outlet thereof, said body having a plurality of delivery-pipe-connection openings located at different points of its circumference, substantially as described.

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

SANDIE S. SMITH.

Witnesses:`

E. C. WHITE, CHAs. R. LONG.

Images