US789182A - Roller-feed-table driving mechanism. - Google Patents

Description

No. 789,182. PATENTED MAY 9, 1905.

R. H. STEVENS.

ROLLER FEED TABLE DRIVING MECHANISM. APPLICATION FILED FEB. 1. 1904,

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PATENTED MAY 9, 1905.

R. H. STEVENS. ROLLER FEED TABLE DRIVING MECHANISM.

APPLICATION FILED FEB. L 1904.

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mvEm'oR WITNESSES R. H. STEVENS.

ROLLER FEED TABLE DRIVING MECHANISM.

- APPLIGATION FILED r2351. 1904.

PATENTED MAY 9, 1905.

INVENTOR NITED STATES Patented May 9, 1905.

PATENT FFICE.

ROLLER-FEED-TABLE DRIVING MECHANISM.

SPECIFICATION forming part of LettersPatent No. 789,182, dated May 9, 1905. Application filed February 1, 1904. Serial No. 191,444.

To (LZZ whom, it may concern.-

Be it known that I, RICHARD H. STEVENS, of Munhall, Allegheny county, Pennsylvania, have invented a new and useful Improvement in Roller-Feed-Table Driving Mechanism, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a partial plan, and Fig. 2 an end elevation, partly in section, of a tilting rollerfeed table equipped with my improved d1 iving mechanism. Fig. 3 is a diagrammatic side elevation showing the position of the spur driving gearing when the tilting table is in its extreme raised or lowered position. Fig. 4 is a partial end elevation of the drivinggears; and Fig. 5 is a vertical section on the meeting pitch-lines of the drivin -pinion and idler wheel, showing the slightly rounded faces of the teeth in the driving-pinion.

My invention relates to that class of tilting feedtables wherein the side shaft on the table is driven by gearin connections with an external motor, this side shaft driving the feed-table rollers. Heretofore in this type of table the side shaft has been provided with a pinion intermeshing with a toothed wheel on an outside parallel shaft driven by bevelgearing from the driving-shaft, which driving-shaft extends in line with the axis on which the table turns. With this type of connections the wearing down of the bearings in which the table is pivoted causes-the bevel-wheels to partially disengage, so that only parts of the end portions of their teeth engage each other. My invention is designed to overcome this difficulty; and it consists in placing a driving spur-pinion on the outside driving-shaft, which pinion is in line with the spur-pinion on the side shaft of the table, and also in providing an idler between them.

It also consists in rounding or beveling the faces of the teeth of the driving-pinion on the outside shaft to allow for the tilting of the table relatively to this shaft.

It also consists in the construction and ar rangement of the parts, as hereinafter more fully described and claimed.

Inthe drawings, in which I show my invention as applied to a plate-mill, 2 represents the rollers of a tilting feed-table; 3, the table line shafts, having miter-gears 4 mounted thereon, which engage similar miter-gears 5 on the shafts of the feed-rollers 2. On the line-shafts 3 are also mounted spur-gears 6, which are driven, through idler spur-wheels 7, by the spur driving-pinions 8 on the driving-shafts 9. The idler-wheels 7 are supported by counter-shafts 10, which are earried in suitable bearings 11, mounted on the sides 12 of the feed-table. The outer ends of the table pivot-shaft 13 are preferably mounted in pivot-bearings 14, which are beyond the sides 12 of the feed-table. By thus placing the pivot-bearings beyond the sides of the table they are easily repaired or renewed. By slightly beveling or rounding the faces of the teeth in the idler-gears or in the spur driving-pinions the angle formed between the faces of the teeth in the spurdriving-pinion and the lengthening of the centers between the driving gear and idler gear, which are caused by the raising and lowering of the table or by wearing of the pivot-shaft bearings, does not interfere with the meshing of the spur-driving-gear teeth. In Fig. 5 I show the tooth 15 of the spur driving-pinion as thus rounded or beveled off, the teeth 16 of the idler being shown in the extreme tilted positions by the full and dotted lines, respectively.

The advantages of the invention result from the use of spur-gearing arranged so that the working of the gearing is not affected by the wear on the pivot-shaft bearings or the raising or lowering of the table and from the arrangement of the different parts of the driving, mechanism, which permits any part of the mechanism to be quickly and easily repaired or replaced. a

The faces of the teeth in the idler-wheels may be beveled or rounded instead of those of the drivingpinion, as shown, or the teeth of both wheels may be so beveled or rounded. The pivot-bearings may be inside the table sides instead of the outside, as shown. The

spur-gearing may be in line with the tableaxls, and many other variations may be made in the driving mechanism without departing from my invention, since What I claim is 1. A tilting feed-table having a side shaft mounted on the table for driving the tablerollers, a driven spur-wheel on said shaft, a driving-shaft in stationary bearings alongside the feed-table, a driving spur-wheel on the drivingshaft, and a counter-shaft mounted in bearin s carried on the tilting table and having an idler spur-wheel meshing with the driven spur-wheel on the roller-driving side shaft and with the driving spur-Wheel on the driving-shaft; substantially as described.

2. A tilting feed-table having a side shaft mounted on the table for driving the tablerollers, a driven spur-wheel on said shaft, a driving-shaft in stationary bearings alongside the feed-table, a driving spur-wheel on the driving-shaft and a counter-shaft mounted in bearin s carried on the tilting tableand having an idler spur-wheel meshing with the driven spur-wheel on the roller-driving side shaft and with the driving spur-wheel on the driving-shaft, at least one of said spur gearwheels having rounded or beveled faces on its teeth; substantially as described.

3. A tilting feed-table having a side shaft arranged to drive the table-rollers, a driving shaft in stationary bearings alongside the feed-table and three spur-wheels connecting said shafts, said wheels being out of line with the table-axis and two of them being carried in bearings fixed to and movable with the table; substantially as described.

4. A tilting feed-table having a side shaft mounted in bearings fixed on and movable with said table, said shaft being arranged to drive the table-rollers and having a spurwheel thereon, a driving-shaft mounted in stationary bearings independent of the table and extending alongside it, and a spur-wheel on the driving shaft intermeshing directly with the spur-wheel on the table side shaft; substantially as described.

5. A tilting feed-table having a side shaft mounted in bearings fixed on and movable with said table, said shaft being arranged to R. H. STEVENS.

Witnesses:

JOHN MILLER,

H. M. OoRwIN.

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