US841459A - Work-reversing feed-table. - Google Patents

Description

PATENTED JAN. 15, 1907. H. U. SHAW & V. OHARTENER.

WORK REVERSING FEED TABLE. .A'PPLIOATION FILED APR}. g. 1905.

2 SHEET8-SEEET l.

WITNESSES! INVENTORS W $17 7%QQWJMMJ 1m: NORRIS Pxrz-ms cu., WASHINGTON, v. c.

No. 841,459. PATENTED JAN; '15, 1907. H. 0. SHAW & v. GHARTENER.

WORK REVBRSING FEED TABLE.

"2 SHEETS-SHEET 2.

IN VENTO R5 M APPLICATION FILED APR. 8. 1905.

WJTNESSES! ATTORNEY! 1n: mamas PETERS co, wxsnmcruu, n. c.

UNITED STATES PATENT OFFTQE.

HENRY C. SHAW, OF GLENSHAW, AND VICTOR OHARTENER, OF

PITTSBURG, PENNSYLVANIA.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed April 8, 1905. Serial No. 254,578.

T0 at whom, it may concern:

Be it known that we, HENRY O. SHAW, residing at Glenshaw, and VICTOR CHARTENER, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, citizens of the United States, have invented or discovered new and useful Improvements in Work- Beversing Feed-Tables, of which the following is a specification.

Our invention relates to rolling-mills, and more particularly to tables which receive the metal from one set of rolls and transfer it to another set.

By our invention the metal which is fed upon the table is fed therefrom in a straightaway course through another set of rolls. It has been ascertained that sheet metal is much stronger and less liable to crack or break if it has been rolled partly with one end in advance and partly with the other end in advance, because thereby the molecules which have become displaced or strained by one pass are more or less restored to normal condition by a pass in the opposite direction. We do not reverse the direction of feed of the metal, but reverse the ends of the metal between passes. By so doing we do not need rolls more than two high or reversing mechanism for the rolls, as they always run in the same direction.

Referring to the drawings, which form a part of this specification, Figure 1 is a side view oftwo stands of rolls with one form of our improved work-reversing feed-tables; Fig. 2, a plan view of Fig. 1, parts being broken away to show parts beneath; Fig. 3, a second form which our invention may assume, and Fig. 4 a partial end view showing the stops and the means for withdrawing below the top of the table.

Referring at present to Figs. 1 and 2, A and B represent two sets of rolls, in which 1 designates the horizontal rolls, and 2 the vertical rolls. 3 is a feeding-table for the set A, and 4 for the set B. Between the two sets of rolls A and B we place our work-reversing table 0, which is mounted on the post 5, to which is secured the bevel gear-wheel 6, in mesh with the bevel gear-wheel 7, driven by any suitable source of power. Centrally secured on the post 5 is the table-bed 8, having antifriction-rollers therein slightly above the top of the bed and in line with the stationary ta les 3 and 4. Mounted in brackets 9, se-

. trac cured to one pair of the roll-housings, is the feed-roller 10, whose journals are movable up and down in the slots 11 (only one being shown) in the brackets. On the necks or axles of this roller 10 are the ends of the counterbalancing-levers 12, pivoted at 13 to the said brackets. The weights 14 on these levers may be adjusted and secured in any adjustment by the set-screws 15. 16 represents handles by which the roller may be raised, lowered, or held in any desired position and is merely re resentative of any preferred mechanical e ement or combination for controlling the roller 10. The roller 10 is driven by the belt 17, running over one of the roll-necks or a pulley 18 thereon and the pulley 19 on the shaft of the roller 10. Near each end of the bed 8 are one or more stops 20, capable of being projected above the upper surface of the bed in the path of the work as it is fed from the set of rolls A. Each stop is shown as consisting of a pin projected upwardly by the spring 21; but it may be constructed in divers ways. The lower end of each stop has a wedge or cone-shaped end 22, tapering upwardly and near the set of rolls A, and beneath the travel of the stops is a pair of tracks 23, between which the wedge or cone shaped end 22 travels. The tracks are located so that the larger end of the wedges or cones passes below them and so close together that the wedges or cones can not ass up between them. The end of the 12s at which the wedges or cones enter is at a higher level than the opposite end thereof, so that as the table reaches its feeding position the stops at the feeding-in end thereof, which is next to the set of rolls A, will be lowered out of the path of the metal as it is dischlarged upon the table from the said set of r0 ls.

The operation is as follows: The work, which will be assumed to be packs of hot sheet metal, is fed through the set of rolls A and upon the table 0. As the pack passes between the table and the feed-roller 10 the latter will feed the pack out of the roll-pass and beyond the roll-housing and against the stops 20 at that side of the table nearest the set of rolls B. The stops nearest the set of rolls A are all held below the line of feed of the pack by the tracks 23. The roller 10 may be held down on the pack by pressure on one of the handles 16 or otherwise, or the roller itself may be made to feed the pack. When the pack is stopped by the stops 20, the roller is raised and the table rotated a half-revolution. The pack will lie'on the -depressed stops, while the previously-elevated stops Wlll be lowered by the tracks 23, ready for the feeding to the table of another pack. The roller 10 is lowered against the pack, which is then fed into the set of rolls B, the stops which were beneath the pack rising as the pack passes from them in time to be engaged by the succeedng pack coming from the set of rolls A.

Referring now to Fig. 3, the table-bed 8 is the same as in Figs. 1 and 2. The bed is supported on the plunger or post 24, operated by the hydraulic cylinder or other device. Splined on the plunger is the bevel gear-wheel 27, in mesh with the bevel-gear 28 on the shaft 29, connected to any suitable source of power. 30 is a stationary feed-roller located above the table. The table will have the stops 20, which operate as those of Figs. 1 and 2. Each pack is fed upon the table preferably when in its lowered position, and when the pack is out of the roll-pass the table is raised by admitting pressure to the cylinder 25, and as soon as the pack contacts with the roller 30 the latter feeds it against the stops 20. The table is then lowered and rotated a half-revolution and then raised till the pack again is engaged by the roller 30, which feeds it into the pass of the succeeding set of rolls.

Many changes may be made in the elements and combinations shown and described, while still retaining the spirit of our invention. As we have illustrated but two forms of our invention, we do not thereby relinquish our right to protection on all other forms which fairly come within our claims when given a liberal interpretation. The set B of rolls may be followed by another table C or other device.

Having described our invention, we claim 1. In a rolling-mill, two sets of rolls, a horizontal table between said sets of rolls, means for rotating said table in a horizontal lane, and means operatively associated wit but distinct from, the table for feeding the work from one set of rolls before the rotation of the table, and from the table after its rotation into the other set.

2. In a rolling-mill, two sets of rolls, a horizontally-rotatable table between said sets of rolls to receive the work from said rolls, stops at opposite ends of the table to limit the feed of the work thereon, and means for withdrawing the stop from the path of the work at the feeding-in end thereof.

3. In a IOlllIlg-lllill, two sets of rolls, a horizontally-rotatable table between said sets, a feeding-roller above the table, and means for bringing the work and the roller into and out of contact with each other, so as to feed the work to the table from the first set of rolls and after rotation of the table, from the lat ter to the second set of rolls.

4. In a rolling-mill, two sets of rolls, a horizontal feed-table between said sets of rolls, and means for rotating said table in a horizontal plane, a stop at each end of the table adapted to be projected into the path of an incoming piece of work, and means for withdrawing each stop so that when at the end of the table nearest the first set of rolls it will be below the path of an incoming piece of work.

5. In a rolling-mill, two sets of rolls, a hori zontally-rotatable table between. the same, stops at opposite ends of the table to limit the feed of the work thereon, and a cam engageable with the stop nearest the feeding-in set of rolls to withdraw the stop from the path of the work.

Signed at Pittsburg, 9th day of March, 1905.

HENRY O. SHAW. VICTOR OHARTENER.

Witnesses:

F. N. BARBER, M. A. BUSHMAN.

Pennsylvania, this

Images