US735391A - Rolling-mill feed-table. - Google Patents

Description

No. 735,391. PATENTL AUG. 4, 1903. J.KENNEDY.

' ROLLING MILL FEED TABLE.

APPLICATION FILED NOV. 2,-1901.

N0 MODEL. Z SHEETS-SHEET 1.

.Tn: NORRIS PEYEHS co. Pwmouma. wnsnmsron, n. cy

PATENTED AUG. 4,-1908. J. KENNEDY. .ROLLING MILL FEED TABLE.

APPLIGATION FILED NOV. 2. 1901.

2 SHEETS-SHEET 2.

NO MODEL INVEN'I'OR wmwwm WITNESSES Patented August 4, 1903- PATENT OFFICE.

JULIAN KENNEDY, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL FEED-TABLE.

SPECIFICATION forming part of Letters Patent No. 735,391, dated August4, 1903 Application filed November 2, 1901. Serial No. 80.899. (No model.)

I broken away and on a larger scale; and Fig. 3 is a vertical cross'section on the line III III of Fig. 2.

My invention relates to the class of feedtables having positively-driven rollers, and is designed to provide a new and improved worm driving mechanism therefor and to cheapen and improve their construction.

In the drawings I show a tilting table having side frames 2 2, each frame being formed,

of castings with flanged end portions 3, se-. cured together by bolts 4. The side frame members are secured together by transverse bolts 5 beneath the rollers, and the table is pivoted on trunnious at 6, as shown in Fig. 1. The table may be tilted by any desirable mechanism, such as the bell-crank and link mechanism shown at 7, and connected to a suitable power-cylinder. One of the side frames is provided along its top with a longitudinal chamber or box-8, which is preferably cast integral with the side frames and is arranged to receive the longitudinal worm-shaft 9 and the worm-wheelslO, intermeshing with the worms and carried by' the projecting shafts 11 of the table-rollers 12. The worm shaft may be made in separate sections, which worm-shaft.

are secured end to end, as shown at 13, andat any desirable intervals between the separated worms are placed the bearings for the These bearings are formed and held in the following manner: The lower portions of the inner sides of the box or chamber are formed with a series of integral projecting pads or surfaces 14, and the casting is then put in a planer and the inner facesof the pads are all planed ofi so as to bring all .the pads along one side with the same plane with accuracy. The bearing-brass consists of two parts 15, each of semicylindrical form with a fiat side face 16, having a vertical rib in the chamber.

17 and with a lower foot portion 18. The face of one of the halves of each brass is inclined, while the other is vertical, and when the shaft is placed in a chamber the brasses are slipped together around it. A spacingblock 19, having a recess 20, is slipped between the flat side face of one half of the brass and one of the pads, while the wedgeblock 21 is slipped between the other half of the brass having a rear inclined face and the other pad. The bearing is thus'supported in position and held against lateral movement, while allowing longitudinal movement As the brasses with the spacing and wedge blocks are made in a jig, so as to be duplicates of each other, the mere act of assembling the bearings alines the shaft and does away-with the necessity for the tedious alining of the shaft as heretofore carried out. To remove any of the bearings,

all that is necessary is to remove the top cover 22 of the chamber or box, screw an eyebolt into the screw-threaded hole 23 in the wedge, pull out the wedge, and then draw out the spacing-block on the other side in a similar manner and remove the brasses.

The bearings 24 for the roller-journals are formed within side projecting bosses 25 of the side frame, as shown in Fig. 3.

To take up the end thrust on the wormshaft, I preferably provide a thrust-bearing for its end portion which projects beyond the box 8, this thrust-bearing being contained in the chambers indicated at 26 and 27 in Fig. 2, which shows the surrounding cases for such hearing. The shaft projects through the bearing and is coupled by the ordinary device 28 to an electric motor 29; mounted on the rearwardly-projecting bracket 30 of the table.

In the operation of the device the electric motor is actuated in either direction to drive the feed-rollers in either direction through the intermediate worm-gearing. It will be noted that the gears are all below the level of the feed-rollers, as is also the cover-plate for the gear-casing. All side obstructions at the ends of the rollers are thus removed, allowing the table to carry plates wider than the rollers or allowing the plates to be drawn laterally.

In using the table oil is supplied to the gear- I to prevent the oil from flowing quickly to one of the cases in the tilting of the table. It

will be noted that the Worm-shaft bearings are floating and can move, while at the same time holding the shaft laterally in place.

The advantages of the invention will be apparent from the above description.

Many variations may be made in the form and arrangement of the worm-shaft and its I bearings and in the driving connections, &c.,

Without departing from my invention.

Iclaim- ,1. 'A rolling-mill feed-table having a series of rollers, a case extending along one side of the table and containing a worm-shaft engag- 1ng worm-wheels upon the projecting shaft of the rollers, and bearings made in halves extending below the shafts and held against lateral movement by the sides of the case, and capable of longitudinal movement in the case; substantially as described.

2. A rolling-mill feed-table having a series of rollers a case extending along one side of the table and containing a worm-shaft engaging worm-wheels upon the projecting shafts of the rollers, said case having inwardly-pro jecting pad portions arranged in pairs, and bearings made in halves and held against lateral movement between the pads, said bearings beingallowed to move longitudinally of the case; substantially as described.

3. A rolling-mill feed-table having a series of rollers, a case extending along one side of the table and containing a worm-shaft engaging worm-wheels upon projecting shafts of the rollers, said case having inwardly-projecting pad portions arranged in pairs, and bearings made in halves and held between the pads by spacing blocks, said bearings meeting below the shaft; substantially as described.

4. A rolling-mill feed-table having a series of rollers with projecting shafts at their ends supported in bearings in a case extending along one side of the table and having. wormwheels within the case, a worm-shaft below the worm-wheels, and endwise-movable bearings for the shaft at different points in its length arranged to hold the shaft against lat eral movement and support it; substantially as described.

5. In a rolling-mill feed-table, the combination with alongitudinally-extending casehaving opposite pads therein, of bearings made in semicylindrical halves held between the pads by spacing-blocks, at least one of the blocks having a projection and recess engaging with one of the half-bearings; substantially as described.

In testimony whereof I have hereunto set my hand.

. JULIAN KENNEDY.

Witnesses:

H. M. OORWIN, L. M. REDMAN.

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