US1506047A - Turnover table - Google Patents

Description

Aug. 2 6 1924.

R. N. BRYAN ET AL TURNOVER TABLE Filed Jan. 10 1921 3 Sheets-Sheet 1 INVENTORS Aug. 26 1924. 1,506,047

R. N; BRYAN ET AL TURNOVER TABLE Filed. Jan. 10. 1921 3 Sheets-Sheet 2 FIELZ- INVENTO/PS A MM Aug. 26, 1924. "1,506,047

R. N, BRYAN ET AL TURNOVER TABLE Filed Jan. 10 1921 3 Sheets-Sheet 5 INVE/VTDAS Patented Aug. 26, 1924.

UNITED STATES PATENT "OFFICE.

ROBERT ,N. BRYAN AND GEORGE M. MEIGS, OF PITTSBURGH, PENNSYLVANIA.

TURNOVER TABLE.

Application filed January 10. 1921.

To all whom it may concern.

Be it known that we, Ronnn'r N. Burrs and M. Mnros, citizens of the United Fitates, and residents of Pittsburgh. in the county of Allegheny and State of Pennsyl Vania, have invented certain new and useful Improvements in Turnover Tables, of which the following is a specification.

This invention relates to turning mechanisms for rolling mills, and more particularly to turn-over tables for use in turning slabs or plates in rolling mills, and has for one of its objects the provision of a table that will turn the slabs or plates end for end, thereby eliminating the necessity for providing tables of great width, as is the practice in turning slabs or plates over, side for side.

Another object of the invention is to provide a turning device of the so-called flopper type. which is adapted to handle the slabs without undue strains or stresses to thef article being turned or the apparatus itsel Further objects and advantages of this in vention consist in providing a turn-over table having 'the novel constructions, arrangements. and combinations of parts shown in the drawings, and to be described in detail hereinafter, and particularly pointed out in the appended claim.

Referring now to the drawings, Figure 1 is a top plan of the turn-over table constructed in accordance with our invention.

Figure 2 is a side elevation of the table.

Figure 3 is an end elevation of the table.

Figure 4 is a sectional detail, showing the turn-over guides in raised position.

Figure 5 is a transverse sectional elevation on the line V-V of Figure 1.

The table has an underframe composed of sides 2 and ends 3, the table being supported on pit walls 4 and 5. being secured in position in the usual and well known manner.

Flnd rollers 6 and intermediate rollers 6 extend transversely of the table. and have their spindles journaled in suitable bearings 7, secured on the upper face of the side girders 2 of the table underframe.

The spindles at one end of the rollers 6 and 6* project through the bearings 7 and have beveled gears 8 splined therein, which are in mesh with other bevel gears 9 on a drive shaft 10, running parallel with the table and iournaled in bearing brackets 11 secured to the side girder 2 of the table Serial No. 436,164.

underframe. The shaft 10 receives its power through gears 12 and 18 from a power shaft llt.

The end rollers 8 are of usual construction, while the intermediate rollers (i are cut away forming a plurality of disk portions 16.

A girder or bridge 17 is arranged centrally between the ends of the table underframe and has its ends secured to the side girders 2 of the frame, and supported vertically on the pit walls 1 and 5. A pair of grids or lifting plates 1818 provided with openings 19 in their surface are mounted over the intermediate rollers (i so that the disk portions 16 of the rollers 6" project through the openings 19, to receive and transfer the slab or other article thereon.

The plates 18 and 18 have their inner abutting edges hingedly secured to supporting brackets or bearings 20, by means of shafts 21, which pass through alined openings in the bearings 20 and the plates 18. The brackets or bearings 20 are secured to the upper face of the girder 17 The grid or lifting plates 18 and 18 are adapted to raise the slab or plate upon one of its ends, and then flop the plate over and lower it to the table to be again returned to the mill by the rollers 6 and 6 Pairs of lifting arms 24. and 25 have their upper ends pivotally secured to suitable bosses on the underside of the plates 18 and 18*, respectively. and have their lower ends pivotally secured to the free ends of levers 26 and 27. The levers 26 and 27, respec tively, are keyed on shafts 28 and 29. journaled in bearings 30 and 3]. respectively. The bearings 30 and 31 are secured to the upper faces of piers 32 and 33 within the pit, and are braced or tied together by beams The lever 27 is considerably shorter than the lever 26. so that when the shafts 28 and .29 are rocked an equal distance. the lever 26 will raise the lifting arm 24 sufficiently to move the plate 18 slightly pasta vertical plane. while the lever 27 will raise the lifting arms 25 a lesser distance. so that the plate 18 will be less than. or inclined. away from the vertical. Thus when a slab or plate is to be turned. it will be raised past the vertical position by the plate 18 and consequently will fall or flop over against the plate 18 The shafts 28 and 29 have operating levers 36 and 37 pinned. or otherwise secured there to, which are in turn connected to connecting rod 38 which has its one end connected to a crank arm 39 on power shaft Q0, vT 7 power shaft 40 is journaled in a suitable bearing 41 and isdriven by a motor 42 through a suitable reduction gearing 43.

As the shaft to is rotated, the rod 38 will be reciprocated by the crank arm so as to rock the shafts28 and 29 through the levers 86 and 37, to raise the levers 26 and 2? and the lifting arms 2e1- and 25, thereby lifting the plate 18 slightly beyond the vertical, and plate l8 somewhat less than the vertical, flopping the slab or plate to be turned over from the plate 18 against the .plate 18 and lowering it again to the table,

to be returned to the reducing rolls of the low the top face of said roller disks and hav- .ing apertures tnerein through which the disks project, lifting means for raising said plates to turn over work on said table, said means comprising lifting arms for each of said plates, a pair of rocker shafts journaled in suitable bearings below each of said plates, levers on each of said shafts and pivotally connected to the lower ends of said lifting arms, the levers on one of said shafts being shorter than the levers on the other shaft, and being adapted to raise the lifting connected therewith, and the plate connected to said arms lesser distance than the other longer levers 0n the other of said shafts, means for rocking said shafts, said means comprising levers having one end secured on said shafts and the ether end thereof pivotally secured to a reciprocating connecting rod, said rod being connected to a crank arm on a suitable power driven shaft,

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