US584712A

US584712A - George w

Info

Publication number: US584712A
Authority: US
Publication date: 1897-06-15
Anticipated expiration: 1914-06-15

Description

tin'rrnn rains ,ArnNr rrrcn.

GEORGE \V. SI'IEM, OF CAMDEN, NEW JERSEY, ASSIGNOR TO TIIE CAMDEN IRON \VORKS, OF SAME PLACE.

HYDRAULIC INTENSIFlER.

SPECIFICATION forming part of Letters Patent No. 584,712, dated June 15, 1897. Application filed December t, 1896. Serial No. 614,517. (No model.)

To ctZZ whom it may concern: for the intermediate ram 7, which is also pro- Be it known that I, GEORGE W. SHEM, a vided at its outer end with a stuffing-box for citizen of the United States, and a resident of the innermost ram 8, the latter having at the Camden, New Jersey, have invented certain outer end a stuffingbox fora tubular plunger 5 Improvements in Hydraulic Intensifiers, of 9, which is rigidly secured at its outer end to which the following is a specification. the cross-head 4., the innerend of the plunger My invention relates to that class of presopening into the chamber within the ram 8, sure devices known as hydraulic intensiwhile the outer end of the plunger communiiiers, the purpose of which is to cause a volcates in any available way with the connec- I0 ume of fluid under pressure to impart to a tion into which fluid under high pressure is second volume of fluid a pressure in excess of to be forced. the initial pressure. Mounted upon the outer end of the ram 6, so The object of my invention is to so conas tobe capableofturningthereon,isaringlO, struct apparatus of this characteras to readily with thickened portions or lugs 11, and simi- [5 regulate the degree of pressure imparted to larly mounted upon the outer end of the ram the secondary volume of fluid; and this ob- 7 is a like ring 12,and on the sleeves 5, which ject I attain in the manner hereinafter set surround the connecting-bolts 2,areinwardlyforth, reference being had to the

accompanyprojecting lugs

13 and 14, the former being ing drawings, in which adapted to engage with the lugs 11 of the ring 20 Figure 1 is a longitudinal sectional view of 12, while the lugs 14 are adapted to engage ahydranlic intensifier constructed in accordwith the lugs of the ring 10 when the rams '6 ance with my invention. Fig. 2 is a transand 7 are in their innermost position. verse section of the same on the line 00 as, Fig. Supposing that the parts are in the position 1. Fig. 3 is a view of a locking-ring such as shown in Fig. 1 and that the chamber of the z 5 is employed in connection withcertain of the hollow ram 8 is filled with the fluid to which rams of the intensifier, and Fig. 4 is aview pressure is to be imparted, the rams 6 and"? illustrating a modification of the invention. are locked to the sleeves 5 by reason of the The main cylinder 1 of the apparatus has engagement of their rings 10 and 12 with the at the upper end a heavy flange 2, which is lugs let and13 of said sleeves. Hence the fluid ,0 connected by means of bolts 3 to a substanunder initial pressure admitted to the cylintial cross-head 4:, located at such a distance der 1 through the opening 15 can project only from the main cylinder as the desired stroke the innermost ram 8, and the pressure imof the rams may suggest. Interposed beparted to the fluid within said ram 8 will be tween the flange 2 of the cylinder 1 and the governed by the difference between the area 5 cross-head 4 are sleeves '5, which surround of the plunger 9 and the area presented by the bolts 2 and serve to hold the cross-head the ram 8. If a greater pressure is desired, drigidlyin its properrelation to the cylinder 1. the ram 7 may be unlocked by turning its \Vithin the cylinder 1 are, in the present ring 12, by means ofa handle 16, untilthe lugs instance, three

hollowrams

6, 7, and 8 of dif- 11 of said ring are free from engagement with o ferent diameters,these rams fitting one within the lugs 13 of the sleeves 5, whereupon the the other telescopically, and the rams 6 and 7 ram 7 will be free to move and the effective being open at the inner end, While the ram 8 area exposed to the pressure within the cylis closed at the inner end. inder 1 will be increased correspondingly, and

The ram 7 is internally shouldered near its in like manner a further increase of pressure 5 5 inner end, so as to provide a bearing for the may be obtained by unlocking the ram 6 by ram 8, and in like manner the ram 6 is interturning its ring 10 so as to release its lugs 11 nally'shouldered to provide a bearin g for the fromthe control of the lugs 14:. Hence the ram 7. pressure may be graduated to accord with The cylinder 1 has at the outer end a stuffany requirement without using any more fluid o 1ng-boX for the outer or largest ram 6, and of initial pressure than is necessary for the the latter has at its outer end a stuffing-box purpose.

Although I have shown an apparatus employing but three rams, it will be evident that the number of rams may be multiplied to any desired extent, or, on the other hand, my invention may be embodied in an intensifier having but two rams, and various means of locking the rams in position may be resorted to. For instance, where the sleeves 5 are not used, the retaining-lugs may be formed directly upon the connecting-bolts 2, or special bolts may project from the flange of the cylinder 1 for engagement with the flanged outer ends of the rams, as shown, for instance, at 14 in Fig. 4.

Having thus described my invention, I claim and desire to secure by Letters Patent 1. The combination in a hydraulic intensifier, of the initial-pressure cylinder, a plurality of rams telescopically arranged therein the central ram being hollow and containing the chamber in which the increased pressure is generated, a fixed plunger closing the outer end of said central hollow ram, an outlet from said ram, and provision for lockin g and releasing the rams surrounding the central hollow ram, whereby the initial pressure may be exerted throughout the area presented by any one of the rams to generate pressure upon the fluid contained in the central hollow ram, substantially as specified.

2. The combination in a hydraulic intensifier, of the initial-pressure cylinder, a plurality of rams telescopically arranged therein,

the central ram being hollow and containing H the chamber in which the increased pressure is generated, and each of the surrounding rams having an internal shoulder acting as a stop to limit the inward movement of the ram contained within it, an outlet from the central hollow ram, a fixed plunger closing the outer end of said central hollow ram, and provision for locking and releasing the rams surrounding the central hollow ram, substantially as specified.

The combination in a hydraulic intensifier, of the initial-pressure cylinder, a plurality of rams telescopically arranged therein, a plunger entering the central ram in which increased pressure is generated, an outlet from said central ram, a cross-head carrying the said plunger and connected to the cylinder by bolts, sleeves surrounding said bolts and having projectinglugs thereon, and rings revolubly mounted upon the rams and having projecting portions for engaging with the lugs on the sleeves, substantially as specified.

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

GEORGE \V. SIIEM.

IVitnesses:

Jos. II. KLEIN, F. E. BEoHToLn.