US436207A - Tire-rolling machine - Google Patents

Description

(No Model.) A 2 Sheets-Sheet 1.

W. P. BETTBNDORF.

TIRE ROLLING MACHINE.

No. 436,207. PatentedSepLQ, 1890.

' 2 Sheets-Sheet 2.

(No Model.)

W. P. BETTENDORF.

TIRE ROLLING MACHINE No. 436,207. Patented Sept. 9, 1890.

' a front elevation of my machine; Fig. 2, a

SldG elevation of the same; Fig. 3, an elevamits the roll to give way, and thus prevents UNITED STATES PATENT, OFFICE.

WILLIAM P. BETTENDORF, OF DAVENPORT, IOWA.

TIRE-ROLLING FIVVIACHLIN E.

SPECIFICATION forming part of Letters Patent No. 436,207, dated September 9, 1890.

Application filed May 20, 1890- To all whom it may concern.-

Be it known that I, WILLIAM P. BETTEN. DORF, of Davenport, in the county of Scott and State of Iowa, have invented certain Improvements in Tire-Rolling Machines, of which the following is a specification.

This invention relates to that class of machines in which the tire is passed between bending-rolls, the relations of which may be changed according to the required curvature of the tire.

The improvements have reference to the means for sustaining, adjusting, and driving the rolls.

In the accompanying drawings, Figure 1 is tion of the roll-driving gear; Fig. 4, a plan View of one of the roll-sustaining yokes. Fig. 5 is a side elevation of the same.

Referring to the drawings, A represents a base-frame, to which there is firmly bolted a top frame B, suitably constructed and provided with boxes to sustain the horizontal main shaft 0 and horizontal driving-shaft D. The drivingshaft is provided with a drivingpulley d, fly-wheel d, and a pinion (1 which engages a gear-wheel e on the main shaft' At its forward end, which is sustained in an overhanging arm of the frame, the main shaft carries a roll E, lying immediately over asecond roll F, carried by a shaft f. This shaft f is mounted in a sustaining-yoke or frame G, (separately shown in Figs. 4 and 5,) provided with sustaining-trunnions g, seated in bearings in the main frame, so that the roll F may move to and from the roll E to permit the passage of tires of different thicknesses between them. In order to hold the under roll up to its place, the sustaining-yoke is provided with a depending arm 9 perforated for the passage of a rod g, which is pivoted to the frame at 9 and provided at the outer threaded end with a hand-nut 9 which acts through an intermediate sprin g g on the yoke arm. By adjusting the nut the spring may be caused to urge the rollupward with any required degree of pressure. The spring perbreakage of the parts in the event of a very thick bar being introduced between the rolls.

Serial No. 352,685. (No model-3 The roll-sustaining yoke G also sustains a second horizontal roll I inadvance of the main rolls to act on the under side of the tire.

The yoke also sustains two vertical guiderolls k W, to act on the edges of the tire and direct the same between the bending-rolls, that it -may not be twisted out of shape. These rolls are mounted on studs fixed by nuts in a slot in the yoke, so that they may be adjusted laterally.

In rear of the main rolls there is a fourth horizontal bending-roll K, sustained in a yokeframe L, which is constructed, mounted, and adjusted in essentially the same manner as the front yoke already described. The trunnions of this rear yoke (shown at l) are sustained in the main frame and its depending arm Z acted upon by a hand-nut Z mounted in the threaded end of the rod Z fixed to the frame.

The shaft of the lower roll F is driven from the shaft 0 of the upper roll by the peculiarlyshaft 0 is provided with a pinion n, engaging apinion n, which in turn communicates motion through a pinion n to a pinion n on the shaft f of the lower roll. The pinion n has its journals sustained in the yoke-frame a, mounted to turn around the shaft 0 as acenter. The pinion n has its journals mounted in a yoke or frame n mounted to turn on the lower roll-shaft as a center. The journals of the pinions n and n are connected by links a. The foregoing arrangement forms in efiect a flexible or adjustable gear-train, which permits the'lower roll and its driving-pinion n to rise and fall without in any manner affecting the operation of the gear or changing the depth at which the teeth engage. By means of this gear frame I am enabled to drive the upper and the lower feed-rolls positively and at equal surface speeds without reference to the varying distances between them. 7 v

In operating the machine the rolls are driven in the directions indicated by the arrows, and the bar to be bent passed between the vertical guide rolls 71 over the bending- -roll I, between the upper bending and feedoperate to feed the metal forward, while the rolls E, I, and K co-operate to eifect the bending of the same. As the metal is drawn forward between the vertical rolls, they cause it to pass through in a straight line, so that a lateral twist or bend becomes impossible.

Having thus described my invention, what I claim is j 1. In a tire-bending machine, the combina tion of three bending-rolls, a spring-supported feed-roll arranged in opposition to one of the bending-rolls and driving-gear connected to the feed-roll and to the adjacent bending-roll.

2. In a tire-bending machine, the combination of an upper power-driven bending-roll, two bending-rolls arranged to act on the under side of the tire, pivoted supports for the lastnarned rolls, and a spring acting on one of the supports to maintain the roll in operative position, and an adjusting device acting on the other support.

3. In a tire-bending machine, the combination of a bending-roll to act on top of the tire, two bending-rolls arranged at opposite sides of the top roll to act on the under side of the tire, movable supports for said under rolls, a spring acting on one of said supports to hold its roll to its operative position, an adj ustingscrew connected with the other support, and a yielding feedroll arranged between the lower bending-rolls.

4. In a tire-bending machine, the upper bending-roll mounted in fixed bearing, the opposing feed-roll mounted in a movable hearing, the four pinions connecting the two rollshafts, and the connected pivoted yokes whereby the intermediate pinions are maintained and kept in proper operative positions 5. In a tirebending machine, the combination of an upper bending-roll and a pivoted spring-supported bearing provided with a feed-roll and also with a bending-roll, where by the tire acts by depressing the feed-roll to adjust the bending-roll.

6. In a tire-bending machine, and in combination with two bending-rolls, a third bending-roll, a pivoted support therefor, and a hand-screw for adjusting said support, whereby the relation of its roll to the other bending-rolls may be varied at will.

7. In a tire-bending machine, and in combination with a pivoted roll-supporting yoke, the vertical guide-rolls mounted thereon.

8. In a tire-bending machine, the combination of a bending roll to act on one side of the tire, a pivoted feed-roll to act on the opposite side of the tire, a second bending-roll, and a pivoted bar or support, in which the feed-roll and the second bending-roll are both mounted.

9. In a tire-bending machine, the combination of a fixed horizontal bending-roll, a cooperating bending-roll F, movable with relation thereto, a support for said roll mounted on a horizontal axis located in rear of the roll, and vertical guide-rolls sustained by the rollsupport in rear of its horizontal axis, substantially as described.

In testimony whereof I hereunto set my hand, this 8th day of May, 1890, in the presence of two attesting witnesses.

\VILLIAM P. BETTENDORF.

Witnesses:

F. STANLEY ELMORE, WV. R. KENNEDY.

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