US103667A - Improvement in hydraulic housings for rolls - Google Patents

Description

G. H. SELLERS. HYDRAULIC HOUSING FOR ROLLS. N0.103, 667. Patented May 31, 1870.

dlnitml tatw aim cyan.

GEORGE H. SELLERS, OF WILMINGTON, DELAWARE.

v Letters Patent No. 103,667 dated May 31, 1870.

IMPROVEMENT I'N HYDRAULIC 'I-IOUS'ING-S FOR ROLLS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whomit may concern:

Be it known that I, GEORGE H. SELLnns, formerly of Phoenixville, in the county of Chester, and State of Pennsylvania, but now residing at \Vih'nington, in a the county of New Castle, and State of Delaware, have invented certain new and useful Improvements in Hydraulic Housings for Rolling-Mills, of which the following is a. sufiicient description and specifica- 7 increased.

Ellhe objectof my invention is, in such a mill, with: out the use of any cook or valve whatever, and without any escape or discharge of the fluid, not only to secure a perfect regulation and'adjustment of one or more of the rolls, but also to make it practicable for the rolls to be advanced or retired toward or from each other while the work is passing through them, soas to roll tapers and pieces of varying thicknesses in dif-' spondingly diiferent diameters, operating in their respective cylinders, the fluid in all the cylinders of each set being confined to that set, but its "flow from one cylinder to another of the same set being unobstructed by cocks or valves, and regulated solely by the plungers, as hereinafter more fully set forth.

In the accompanying drawings, which illustrate the invention herein claimed- Figure 1 is a view in perspective, and I Figure 2, a vertical central section through the same.

"A suitable foundation, B- B, supports the bed-plates A A of the housings G' 0, having lugs a a projecting laterally from their base and resting upon the bed plates.

Bolts 71 I; pass through these lugs into longitudinal grooves or ways 0 c in the bed-plates, the heads of the bolts fitting in these grooves.

The bed-plates and housings are thus firmly clamped together, while the housings may be moved along the bed-plates to adjust them properly relatively to the rolls, as well as to permit the rolls to be removed.

In this example journal-boxes D E I, provided with proper bearings, d e f, forthe necks of the rolls, are mounted in the housings.

-. The central box. IE. is fixed in the housings, but the upper and lower boxes, D F, are movable in vertical ways, formed, in this instance, by flanges on the boxes, overlapping the sidesof the housings.

The boxes 1) F are forced toward each other by plungers, G H, moving in properly-packed cylinders,

n m, in the housings.

Each of these plungers is mediatel y operated through the fluid by its respective plunger g it, moving in a corresponding reservoir, t' 7;, those reservoirs "L It being of larger area than the diameters of the plungers g 72 rel spectively, so that, while the plungers g h force the fluid from the reservoirs i k, respectively, into the cylinders n m, there always remains an annular space in the reservoirs i. 7. around the'pluugers g h, rcspcctively, through which the ebb and flow ofthe fluid between all of the cylinders of the same set is permitted.

The fluid thus forced into the cylinders a m pushes out the plungers G H, which correspondingly move their respective boxes D F toward the central box IE, and thus cause the'rolls mounted in these bOXesLD ll to approach each other.

to prevent leakage. The box 1) being counterweighte'd in the ordinary will flow back from the cylinders n m to the reservoirs e 7; respectively. I

The plunge-rs g It may beoperated by any well-known mechanical means, such as levers, screws, cams, or racks. and pinions, and, being of much smaller diameter than the plungcrs G'H, they will very accurately indicate the adjustment of the rolls. If, for instance, the plungers g hwere made of one-tenth the area of the plunger-s G H, then the movement of the plungers g it one inch would move the plungers G H one-tenth of an inch.

Screw-p "s p q, in the cylinders n m, are'convenient for relcash. the rolls when jammed, as, by unscrewing them, and thus allowing the fluid to escape, the pressure upon the rolls will at once be relieved.

'Iwo or more small plungers may be used in the reservoirs to actuate the large plungers in the cylinders.

l onrolling tapered iron, the plungers g h'may be connected with the roll-train by any well-known mechanical device, in such manner as to be automatically moved thereby, so as to cause the rolls gradually to recede from or approach toward each other, as required for this kindof work. 4

For rolling iron of irregular or varying thicknesses in difierent parts, a correspondii'igly irregular or varying motion must be imparted to the plungers g h, and these motions can also be derived from the roll-train by any of the well-known mechanical devices to that end.

The plungersmovc through boxes packed properly;

manner, when the plun ersy h are retracted the fluid In either of these cases the connection or disconnec-,

In arolling-mill, the rolls of which are to be adjusted by hydraulic pressure, the combination with the rol s of cylinders of different areas, and plnngers of correspondingly different diameters, the fcrcing-plungers h being smaller than the reservoirs z k, in which they operate, respectively, substantially as and for the purpose described.

GEO. H. SELLERS.

Witnesses:

ELI GARRETT,

WM. 13. Wreems.

Images